Use these selected concepts to connect legal requirements and ethical principles with dental hygiene decisions. Each concept includes a practical example and a specific error to avoid. Read the referenced official outline alongside the guide to identify subjects that require additional study.
Consent and patient participation
1. Consent precedes treatment
Under ADHA's ethical code, patients have the right to informed consent prior to treatment, so the hygienist must explain proposed care and obtain agreement before beginning, not afterward. This is an ethical foundation, not a complete statement of California consent law or its exceptions.
Worked example: A patient agrees to an assessment only. Before adding a proposed polishing intervention, the hygienist explains its purpose and risks and obtains the patient's informed agreement first.
Mistake to avoid: Treating a signature collected after the intervention as a substitute for consent beforehand.
Reference: [4]
2. Relevant disclosure makes a choice informed
ADHA's code holds that patients have the right to full disclosure of all relevant information so they can make informed choices, and hygienists must provide the information necessary for informed decisions. Presenting only the preferred option undermines that choice. This ethical principle does not establish a particular California consent form or exhaustive legal disclosure checklist.
Worked example: Two relevant approaches to debridement are available for the patient. The hygienist explains both options, including what each involves, rather than describing only the office's preferred approach.
Mistake to avoid: Assuming a signed consent form compensates for withholding relevant information.
Reference: [4]
3. A recommendation does not replace patient autonomy
ADHA's code recognizes that individuals have intrinsic worth, are responsible for their own health, and are entitled to make choices regarding their health. A professional recommendation should support the patient's decision rather than override it. Apply this to a patient able to make the relevant decision; substitute decision-making and minor-consent rules require separate legal analysis.
Worked example: An informed adult declines a proposed elective sealant service. The hygienist documents and respects the decision instead of proceeding simply because the service was recommended.
Mistake to avoid: Equating the hygienist's professional preference with the patient's authorization to proceed.
Reference: [4]
4. Participation includes treatment goals
ADHA's code directs hygienists to provide information for informed decisions and encourage patients' full participation in treatment decisions and goals, so participation extends beyond accepting a procedure to helping shape goals. Shared goal-setting does not authorize services outside lawful scope or competence.
Worked example: A patient identifies maintaining comfortable daily oral care at home as a priority. The hygienist incorporates that priority into the discussion of appropriate care goals and next steps.
Mistake to avoid: Calling a plan patient-centered when the patient's own priorities were never considered.
Reference: [4]
Privacy, disclosure, and access to records
5. HIPAA coverage depends on standard transactions
A provider becomes a HIPAA covered entity only by electronically transmitting health information in connection with a standard transaction, such as claims or eligibility inquiries; using electronic technology like email alone does not establish covered status.
Worked example: A dental practice submits standardized electronic insurance claims through an outside billing contractor. The practice remains a HIPAA covered entity, because outsourcing the standard electronic transmission does not remove it from coverage.
Mistake to avoid: Deciding a practice's HIPAA status solely from whether the office uses electronic records.
Reference: [6]
6. More protective state privacy rules can survive
HIPAA generally preempts contrary state law, but the Privacy Rule provides exceptions, including contrary state laws relating to health information privacy that provide greater privacy protections or privacy rights; not every state rule overrides HIPAA, so the exception must be evaluated.
Worked example: A disclosure fits a federal permission, but an applicable California rule gives the patient greater privacy protection. The federal permission alone does not resolve whether the disclosure may proceed.
Mistake to avoid: Assuming federal permission automatically defeats a more protective California privacy requirement without checking exceptions.
Reference: [6]
7. Treatment disclosure is permitted, not automatically required
HIPAA permits covered entities to disclose protected health information for another provider's treatment activities, including consultation and referral, but the Privacy Rule does not require sharing; other applicable laws, special record protections, and professional responsibilities must still be considered.
Worked example: A treating dentist requests relevant history for a referral consultation. HIPAA's treatment permission may support sharing, but the request alone does not create an unlimited federal entitlement to the records.
Mistake to avoid: Treating every record request from another clinician as a mandatory disclosure obligation.
8. Minimum necessary has defined exceptions
When the minimum-necessary standard applies, a covered entity must make reasonable efforts to limit information to what reasonably serves the intended purpose; the standard does not apply to disclosures to, or requests by, a health care provider for treatment.
Worked example: A payment inquiry needs a service date and procedure information. Sending unrelated dental history without justification exceeds the applicable purpose, though treatment disclosures fall outside the standard.
Mistake to avoid: Applying minimum necessary as an absolute rule that blocks appropriate provider treatment information.
Reference: [6]
9. Authorization must identify the disclosure
When no other HIPAA permission or requirement supports a use or disclosure, the covered entity must obtain a written authorization in specific, plain-language terms identifying the information, discloser, recipient, expiration, and the right to revoke in writing.
Worked example: A patient asks the hygiene practice to send specified periodontal charting to her life insurer for underwriting. A sticky note reading 'share my info' lacks the required elements, so staff prepare a proper written authorization naming the parties, records, and expiration before releasing anything.
Mistake to avoid: Treating any signed permission as a valid, unlimited authorization for all future disclosures.
Reference: [6]
10. Marketing permission differs from treatment communication
HIPAA generally requires authorization before using or disclosing protected health information for marketing, though face-to-face communications and nominal promotional gifts are excepted. Communications for treatment, case management, or recommending alternative treatments fall outside the marketing definition, and third-party remuneration must be revealed.
Worked example: A hygiene practice is paid to hand a whitening-product company its patient list for the company's own promotions; that arrangement is marketing requiring authorization that discloses the remuneration, unlike recommending a suitable desensitizing treatment alternative during the patient's visit.
Mistake to avoid: Calling every product promotion a treatment communication that never needs patient authorization.
Reference: [6]
11. Family involvement does not open the entire record
With an opportunity to agree, acquiesce, or object, disclosures to family or friends must be limited to information directly relevant to their involvement in the patient's care or payment; incapacity, emergencies, or unavailability instead rest on professional judgment and the patient's best interests govern.
Worked example: An adult patient agrees that his sister may hear his follow-up arrangements. That agreement supports sharing those arrangements, but his unrelated past billing statements fall outside her agreed involvement.
Mistake to avoid: Assuming family membership itself grants unrestricted access to a patient's entire billing history.
Reference: [6]
12. Representative authority has boundaries
HIPAA generally treats a legally authorized personal representative as the individual. On a reasonable belief of abuse, neglect, or endangerment, the covered entity may apply an exception instead of treating that person as the individual; parental access for minors defers to state and other law.
Worked example: A parent requests a minor's complete hygiene record. Before granting access, the practice verifies the parent's representative status, considers any abuse or endangerment concerns, and checks applicable state law rather than automatically releasing everything.
Mistake to avoid: Treating parenthood as an exception-free right to every minor's complete dental record.
Reference: [6]
13. Patient access includes billing records
Under HIPAA's Privacy Rule, a patient's right of access generally covers both medical records and billing records held by covered providers and health plans, with only a few exceptions, so responses are not limited to narrative treatment notes.
Worked example: A patient asks a dental practice for her treatment chart and her billing history. The privacy officer assembles both components, responding to the full request rather than sending only the hygienist's clinical notes.
Mistake to avoid: Limiting the access response to clinical notes while omitting the billing records the patient also requested.
Reference: [7]
14. Unpaid treatment does not cancel access
A provider cannot deny a patient a copy of records because charges for services remain unpaid. The provider may charge reasonable copying and mailing costs, but may not charge any fee for searching for or retrieving the records.
Worked example: A patient who still owes for prior care requests a copy of his chart. The practice processes the access request separately from the unpaid balance, charging only reasonable copying and mailing costs.
Mistake to avoid: Withholding the requested record copy until the patient settles the outstanding treatment balance.
Reference: [7]
15. An amendment request has a response pathway
Patients may request amendment of information they believe is incorrect or incomplete, and the provider or plan must respond. If the provider denies the request, the patient may submit a statement of disagreement that must be added to the record.
Worked example: A patient disputes a chart entry the practice believes is accurate and complete. The practice responds through the amendment process, and if it denies the change, it accepts the patient's statement of disagreement into the record.
Mistake to avoid: Erasing the disputed entry outright instead of following the amendment process and recording any disagreement.
Reference: [7]
Protective reporting and confidentiality
16. Reasonable suspicion triggers child-abuse reporting
Penal Code section 11166 requires a dental hygienist, as a health practitioner, to report immediately, or as soon as practically possible, when a child observed in a professional capacity or within employment is known or reasonably suspected to be abused.
Worked example: During a hygiene visit, a hygienist notices findings that give her reasonable suspicion a child patient has been abused. She reports the instance to a child protective agency rather than waiting for proof of abuse.
Mistake to avoid: Delaying the report until an investigation confirms abuse rather than acting on reasonable suspicion.
Reference: [10]
17. Child-abuse reporting has two stages
California's CDSS guidance calls for an initial telephone report made immediately or as soon as practically possible, followed by a written suspected-child-abuse report completed within 36 hours of receiving the information that prompted concern; emergency danger is addressed separately by calling 911.
Worked example: A hygienist notices a suspicious injury Tuesday at 9 a.m., calls the county child welfare hotline promptly that day, and completes the written suspected-child-abuse report by Wednesday at 9 p.m.
Mistake to avoid: Waiting until the 36-hour written-report deadline before placing the initial telephone report call.
Reference: [8]
18. Report observations without conducting an investigation
A suspected-child-abuse report should communicate the factual information that is available, such as dates and descriptions of injuries and the child's statement when possible; investigation belongs to Child Welfare Services and law enforcement, and the guidance does not require independently proving allegations or resolving every missing detail before reporting.
Worked example: A hygienist's report describes an observed lip injury, records the child's brief account of what happened, and notes that the perpetrator's ongoing access remains unknown rather than questioning witnesses herself.
Mistake to avoid: Delaying the report to question witnesses or investigate the suspected perpetrator personally.
Reference: [8]
19. Mandated reporting is identified rather than anonymous
California's child-abuse guidance requires mandated reporters to identify themselves when making a report, while the receiving agency keeps the reporter's identity confidential; anonymity is reserved for people who are not legally mandated to report, so confidentiality does not permit omitting the reporter's identity.
Worked example: A dental hygienist filing a suspected-child-abuse report provides her name and professional details to the receiving agency, relying on the agency's confidentiality protections rather than submitting the mandated report anonymously.
Mistake to avoid: Treating the confidentiality of reporter identity as permission to omit identifying information.
Reference: [8]
20. Adult reporting status follows the care role
California's adult-abuse reporting law includes health practitioners and any person who has assumed full or intermittent responsibility for the care or custody of an elder or dependent adult, whether or not that person receives compensation; statutory definitions and setting-specific reporting provisions govern, and this passage does not establish age definitions or every exception.
Worked example: A hygienist who provides intermittent care to a dependent adult reviews her responsibilities under Welfare and Institutions Code Section 15630 instead of assuming only full-time, paid caregivers count as mandated reporters.
Mistake to avoid: Deciding reporter status using employment hours or payment alone rather than the assumed care role.
Reference: [9]
21. Adult-abuse report forms depend on reporter category
CDSS assigns report forms by reporter category: employees of financial institutions complete SOC 342, while all other mandated reporters, including dental hygienists acting in a dental-care role, complete SOC 341 for suspected elder or dependent-adult abuse.
Worked example: A hygienist suspects a dependent adult patient is being financially exploited by a family member and, working in a dental office, files the written report on SOC 341, not SOC 342.
Mistake to avoid: Choosing SOC 342 merely because the suspected exploitation involves money rather than the reporter's employment.
Reference: [9]
Scope, terminology, and professional identification
22. Lawful duties depend on category, supervision, and setting
Whether a duty is lawful depends on three checks together: the hygienist's license category, the level of dentist supervision required, and the settings in which the duty may be performed; performing or aiding illegal functions risks discipline and criminal liability.
Worked example: Asked to scale teeth in a mobile community setting, an RDH checks whether her category permits it, whether required supervision is present, and whether the setting is allowed before proceeding.
Mistake to avoid: Assuming an employer's instruction supplies legal authority that license category, supervision, and setting rules do not grant.
Reference: [10]
23. Assessment organizes information for dental hygiene care
Dental hygiene assessment means the systematic collection, analysis, and documentation of the patient's oral and general health status and needs, using methods within dental hygiene scope, primarily to formulate a dental hygiene care or treatment plan.
Worked example: After probing and reviewing a new patient's medical history, a hygienist analyzes the findings, documents patient needs, and uses that analysis to shape the hygiene care plan.
Mistake to avoid: Recording probing depths and medical history without analyzing their relevance or documenting the patient's needs.
Reference: [3]
24. Care-plan terminology preserves the RDHAP distinction
The January 2025 compilation defines a dental hygiene care plan as designed by a dental hygienist within hygiene scope, while its defined dental hygiene treatment plan is designed by an RDHAP based on assessment data within RDHAP scope.
Worked example: Studying the regulation's definitions, an RDH notes that the defined care plan is designed by a dental hygienist, while the treatment plan definition specifically describes RDHAP practice based on assessment data.
Mistake to avoid: Treating the similar plan names as proof that RDH and RDHAP license categories have interchangeable authority.
Reference: [3]
25. Prevention and therapeutic intervention have different purposes
Under the Board's January 2025 definitions, preventive services primarily prevent oral disease or pathology and promote oral and overall health, while therapeutic interventions are procedures within the dental hygiene scope of practice designed to intervene in a disease process to produce a therapeutic benefit.
Worked example: Assuming scope and supervision requirements are met, Ava receives brushing instruction whose primary purpose is preventing future oral disease and promoting oral and overall health, so it is preventive; Ben receives root planing to remove residual calculus from his roots to intervene in his documented periodontal disease process for therapeutic benefit, so it is therapeutic.
Mistake to avoid: Treating the preventive or therapeutic label as proof of legal permission, effectiveness, or a billing category.
Reference: [3]
26. Coronal polishing is narrower than scaling
The January 2025 definitions limit coronal polishing to removing plaque and stain from exposed tooth surfaces with a rotary instrument and polishing agent, while scaling covers calculus and dental biofilm removal from both supragingival and subgingival exposed tooth surfaces [s3].
Worked example: A hygienist uses a rubber cup and polishing agent to remove stain from a patient's exposed enamel; that fits coronal polishing, whereas removing calculus from a subgingival exposed root surface would fall under scaling instead [s3].
Mistake to avoid: Using polishing as a general label for every deposit-removal procedure, including subgingival calculus removal.
Reference: [3]
27. Patient-of-record requirements have specified exceptions
A patient of record has been examined, has an evaluated medical and dental history, diagnosed oral conditions, and a written plan developed by the licensed dentist; Section 1684.5 permits limited exceptions, such as preliminary diagnostic procedures and exposing emergency radiographs at the dentist's direction [s10].
Worked example: Before examination, a dentist permits a hygienist to perform mouth-mirror inspections charting obvious lesions and existing restorations for diagnostic purposes; this fits a listed exception but does not authorize unrelated hygiene treatment before the required examination [s10].
Mistake to avoid: Expanding one listed exception, such as emergency radiographs, into blanket permission for all hygiene services.
Reference: [10]
28. Professional identification differs from mandatory license posting
The Board states no law requires actual licenses to be posted; instead, Section 680 requires working practitioners to disclose their name and license status on a name tag in at least 18-point type, with a displayed-license alternative and specified exceptions [s10].
Worked example: A hygienist whose license is not prominently displayed wears an 18-point name tag disclosing her name and license status; the office separately displays employees' names under Section 1700, but no statute requires posting the license document itself [s10].
Mistake to avoid: Assuming the law mandates posting the actual license document rather than a name tag or displayed license.
Reference: [10]
Documentation and accountable professional practice
29. Treatment entries identify the provider and date
Business and Professions Code section 1683 requires every professional who performs a service in a dental office to identify themselves in the patient record, by signature or identification number with initials, next to that service, and to date the treatment entry. Office owners, operators, and managers must ensure compliance with this requirement.
Worked example: During one appointment, a hygienist performs scaling while a second hygienist applies sealants. Each treatment entry is dated and signed, or initialed with an identification number, by the clinician who actually performed that service.
Mistake to avoid: Recording one generic office signature that fails to identify which clinician performed each service.
Reference: [10]
30. Documentation completes the process of care
The educational-program regulations define the dental hygiene process of care as including complete and accurate recording of all documentation relevant to patient care, alongside assessment, care planning, patient-centered treatment, and measurement of how well care-plan goals are achieved.
Worked example: A record documents a hygienist's assessment, care plan, and treatment but omits whether the stated goal of reduced bleeding was achieved. Adding the goal measurement and completing the documentation makes the recorded process of care more complete.
Mistake to avoid: Treating the finished procedure as the end point, skipping goal evaluation and complete documentation.
Reference: [3]
31. Specified deaths and hospital transfers require Board reporting
Within seven days, licensees must report to the Dental Board deaths during or later discovered as related to a dental or hygiene procedure and, except for scheduled hospitalizations, hospital or emergency-center removals of patients given oral conscious sedation, conscious sedation, or general anesthesia, or removals resulting from dental or dental hygiene treatment; removal that is normal or expected treatment for the underlying dental condition need not be reported unless one of those agents was given. Hygienists report hygiene-treatment deaths to DHBC, copying the Dental Board.
Worked example: A hygienist learns weeks later that a patient's death resulted from hygiene treatment; she reports to the Dental Hygiene Board of California within seven days of discovery and sends a copy to the Dental Board.
Mistake to avoid: Excluding a patient who received only local anesthesia from the normal-or-expected-treatment removal exception.
Reference: [10]
32. Billing descriptions must remain truthful
The ADHA Code of Ethics principle of veracity obligates hygienists to tell the truth, and its standards require conducting professional activities and relationships honestly, responsibly, openly, and candidly. An inaccurate description of a service or financial communication should not be defended merely because it benefits the practice.
Worked example: A billing entry describes a periodontal service the hygienist knows was not performed as billed. Rather than endorsing the inaccurate description because it increases practice revenue, she raises the discrepancy with the office so the charge can be corrected.
Mistake to avoid: Justifying a misleading billing description of care by pointing to the office's financial interest.
Reference: [4]
33. Posted duties communicate professional boundaries
Regulation section 1068 requires that dental hygiene duties be posted in a common area of the office, but the posting itself does not expand lawful functions or replace checking the applicable category, supervision, and setting for each procedure.
Worked example: A practice tapes its hygiene duties list in the staff break room where everyone can read it, while still checking each procedure's permitted category, supervision, and setting before assigning it.
Mistake to avoid: Filing the duties list in a supervisor's private personnel folder instead of posting it publicly.
Reference: [10]
License status and continuing education
34. An issued license must also have valid practice status
Previously receiving a license does not authorize practice when its current status is expired, cancelled, or inactive; performing licensed duties in any of those statuses is a criminal offense, so the Board's current status information must be relied upon.
Worked example: A hygienist keeps an old pocket license in a wallet after the license expired last cycle; the document alone does not authorize licensed duties, so current Board status must be confirmed first.
Mistake to avoid: Assuming a physical license card proves current authority to practice without checking status.
Reference: [11]
35. Renewal follows the birthday month
California dental hygiene licenses renew every two years by the last day of the licensee's birthday month, and the licensee remains ultimately responsible for completing renewal on time; this concept concerns renewal dates, not examination scheduling.
Worked example: A licensee whose birthday falls in October must submit the renewal application and fee so they are postmarked by October 31, since timely renewal remains the licensee's own responsibility.
Mistake to avoid: Treating the birthday day itself, rather than the month's last day, as the deadline.
Reference: [11]
36. Inactive status retains renewal obligations
A licensee on inactive status must continue paying renewal fees but is not required to complete the usual continuing education while the license remains inactive, may renew inactive indefinitely, and still may not perform licensed duties; activating the license involves separate requirements.
Worked example: During an extended break, a hygienist renews in inactive status each cycle, pays the renewal fee, skips continuing education while inactive, and does not practice until completing the separate activation requirements.
Mistake to avoid: Assuming inactive status removes the obligation to keep paying renewal fees on schedule.
Reference: [11]
37. Reactivation depends on when it is requested
Activation timing determines the route: at renewal, the licensee certifies qualifying CE completed within the prior two-year renewal period; during the cycle, the Board requires its Inactive/Active Form, CE copies from the prior two years, the returned inactive pocket license, and the required fee.
Worked example: A hygienist requests activation eighteen months into a two-year cycle, so she submits the Inactive/Active Form with CE copies from the prior two years, her inactive pocket license, and the fee.
Mistake to avoid: Assuming that completing continuing education alone officially changes an inactive license's status.
Reference: [11]
38. Long expiration can become cancellation
The Board states that a license expired for more than five years is automatically cancelled and cannot be renewed, reinstated, restored, or reissued; the holder must then apply as a first-time applicant for RDH licensure.
Worked example: A license lapsed six years ago, so its holder pursues first-time RDH licensure instead of submitting an ordinary renewal application to the Board.
Mistake to avoid: Treating a cancelled license as equivalent to a properly renewed inactive license.
Reference: [11]
39. RDH continuing education includes an initial exception
RDH renewal requires 25 CE units, with mandatory coursework included in that total, while the Board's renewal guidance states that no CE units are required for the first renewal period.
Worked example: A hygienist renewing for the first time owes no CE units, whereas her next renewal two years later requires 25 units including mandatory coursework.
Mistake to avoid: Adding mandatory coursework on top of the 25-unit total instead of recognizing it is included.
40. Multiple licenses do not duplicate CE totals
For licensees holding more than one license or permit, the license or permit requiring the largest number of CE units equals or exceeds the full renewal requirement, so dual licensure does not duplicate CE requirements.
Worked example: A hygienist holding both RDH and RDHAP licenses completes 35 units, the RDHAP requirement, rather than combining 25 and 35 into 60 units.
Mistake to avoid: Summing each license's separate renewal total simply because two licenses are held concurrently.
Reference: [12]
41. Contact and legal-name changes have different deadlines
California licensees must report email and physical-address changes to the Board within 30 days, but legal-name changes carry a shorter 10-day deadline and require qualifying legal documentation, such as a court order, marriage certificate, or naturalization certificate.
Worked example: A hygienist moves to a new apartment and legally marries in the same month. She reports her address change within 30 days but files the name-change request within 10 days, attaching her marriage certificate rather than her updated driver's license.
Mistake to avoid: Assuming an updated driver's license or social security card satisfies the legal-name documentation requirement.
Reference: [11]
42. A disability CE waiver is conditional
A licensee who has not practiced in California for more than one year because of disability may be excused from continuing education for that renewal period, but must still pay the renewal fee and document the disability dates and nonpractice.
Worked example: A hygienist disabled for fourteen months submits a medical provider's statement listing the disability dates, certifies she did not practice as a licensed auxiliary during that period, and still pays the required renewal fee with her application.
Mistake to avoid: Assuming any illness or brief absence automatically removes both CE and renewal-payment obligations without documentation.
Reference: [11]
Patient welfare, competence, and referral
43. Harm prevention and health promotion are complementary duties
Non-maleficence obligates hygienists to provide services that protect clients and minimize harm to them and others involved in treatment, while beneficence calls for actively promoting well-being through health promotion and disease prevention activities; both guide judgment without creating treatment protocols.
Worked example: A hygienist repositions a sharp instrument tray to reduce a coworker's laceration risk, honoring non-maleficence, and also teaches the patient evidence-based daily interdental cleaning, fulfilling beneficence's preventive role within her authorized scope.
Mistake to avoid: Believing an action is ethically sufficient merely because it causes no obvious immediate injury to the patient.
Reference: [4]
44. Fair access excludes discriminatory service decisions
The ADHA Code values justice through fair and equitable distribution of healthcare resources and affirms that all people should have access to high-quality, affordable oral healthcare, paired with the professional responsibility to serve all clients without discrimination.
Worked example: A scheduling coordinator blocks patients from a particular neighborhood from prime appointment slots. The hygienist flags that the restriction reflects group membership, not individual care needs, and the practice removes it to serve all clients fairly.
Mistake to avoid: Treating a patient's group membership as a substitute for assessing that individual's actual care needs.
Reference: [4]
45. Complementarity requires considering other perspectives
The complementarity principle obligates hygienists to consider the values and perspectives of people affected by their decisions, and the code specifically recognizes that cultural beliefs can influence client decisions about care.
Worked example: A patient declines a recommended sealant, citing a belief about fluoride exposure. The hygienist asks about that individual's specific concern, then discusses evidence-based alternatives that respect the patient's values without judgment.
Mistake to avoid: Assuming every patient from a cultural group shares identical beliefs about treatment.
Reference: [4]
46. Competence requires continuing development
The code requires hygienists to enhance professional competencies through continuous learning and to recognize their limitations, so completing initial education does not establish competence in every later technique or technology.
Worked example: A hygienist encounters an unfamiliar ultrasonic unit at a new workplace. She seeks manufacturer training and supervised practice before using it on patients, rather than assuming general experience covers the device.
Mistake to avoid: Treating an active license as proof of competence in every available method.
Reference: [4]
47. Appraise evidence before adopting a new approach
The code obligates hygienists to critically evaluate research methods and results before applying new theory or technology in practice, drawing only conclusions that the presented data actually support.
Worked example: A vendor's brochure cites a small study claiming a new irrigant outperforms standard rinsing. The hygienist reviews the study's design, sample size, and supported conclusions before considering whether to adopt it.
Mistake to avoid: Accepting a manufacturer's promotional conclusion as an independent assessment of evidence.
Reference: [4]
48. Referral responds to limits of ability or scope
Referral is appropriate when a patient's needs exceed the hygienist's ability or lawful scope of practice, and the regulatory definition adds that the patient must be directed to a provider who can supply that care.
Worked example: During assessment, a hygienist identifies a suspicious lesion requiring evaluation beyond her competence. She directs the patient to an appropriate provider for diagnosis instead of attempting unfamiliar assessment herself.
Mistake to avoid: Improvising unfamiliar care because the patient's need seems within legal scope.
Occupational safety and exposure prevention
49. Dental saliva falls within bloodborne-exposure precautions
California's bloodborne-pathogens standard lists saliva in dental procedures as other potentially infectious material and requires universal precautions toward blood and OPIM. When body-fluid types cannot be differentiated, all fluids are treated as potentially infectious. This occupational rule is not a complete dental infection-control standard.
Worked example: During scaling on a patient whose saliva shows no visible blood, a hygienist still handles the saliva as other potentially infectious material under universal precautions rather than dismissing it from exposure controls.
Mistake to avoid: Limiting precautions to visibly bloody dental material and ignoring clear saliva.
Reference: [5]
50. Controls and protective equipment perform different jobs
Engineering controls isolate or remove the bloodborne-pathogens hazard from the workplace, work-practice controls change how a task is performed, and appropriate personal protective equipment addresses exposure that remains after both. Employers provide appropriate PPE at no cost, and general work clothing is not automatically PPE.
Worked example: A dental office places puncture-resistant sharps containers near operatories, adopts a policy for passing instruments safely, and supplies gowns, masks, and eyewear for the exposure risk that remains after those measures.
Mistake to avoid: Using gloves and masks as a reason to skip feasible engineering and work-practice controls.
Reference: [5]
51. Exposure control plans must remain accessible and current
Employers with occupationally exposed employees must maintain a written exposure control plan, keep it accessible to employees, and review and update it at least annually and whenever tasks, technology, exposed positions, incidents, or identified deficiencies change. Solicited input from non-managerial direct-care employees must be documented.
Worked example: A dental practice adds a new task that involves occupational exposure, so the employer reviews and updates the written exposure control plan even though the scheduled annual review occurred only weeks earlier.
Mistake to avoid: Treating the annual review signature as sufficient when actual work tasks have changed.
Reference: [5]
52. Contaminated-sharps recapping has a narrow exception
The regulation generally prohibits bending, recapping, or removing contaminated sharps. Recapping is permitted only when the employer demonstrates that no alternative is feasible or that a specific medical or dental procedure requires it, and only with a mechanical device or a one-handed technique. Shearing or breaking contaminated sharps remains prohibited.
Worked example: A hygienist may recap a contaminated anesthetic needle only if the employer has shown no alternative is feasible or the dental procedure requires recapping, and the recap is done with a mechanical device or one-handed technique.
Mistake to avoid: Recapping by habit with a one-handed technique while skipping the exception's necessity condition.
Reference: [5]
53. Gloves do not replace required handwashing
California's bloodborne pathogens regulation requires handwashing immediately or as soon as feasible after removing gloves or other PPE, and washing skin or flushing mucous membranes after blood or OPIM contact. Where handwashing facilities are infeasible, the employer provides an appropriate antiseptic hand cleanser used with clean cloth or paper towels, or antiseptic towelettes; either temporary alternative still requires washing with soap and running water as soon as feasible.
Worked example: After removing her examination gloves at the end of a scaling appointment, a hygienist goes to the sink and washes with soap and running water instead of assuming that wearing gloves made handwashing unnecessary.
Mistake to avoid: Treating antiseptic towelettes as a permanent substitute for the required soap-and-running-water wash, or omitting the clean cloth or paper towels required with the temporary cleanser alternative.
Reference: [5]
54. An exposure incident requires specific contact
An exposure incident means a specific eye, mouth, other mucous membrane, non-intact skin, or parenteral contact with blood or OPIM resulting from the employee's duties. Incidents involving sharps must be recorded in the sharps injury log within 14 working days of being reported to the employer, with the injured employee's confidentiality protected. That recording deadline is not permission to delay reporting the incident or obtaining appropriate evaluation, and full post-exposure procedures require separate study.
Worked example: A hygienist is punctured by a contaminated instrument during a procedure. The event is recognized as an exposure incident and entered through the confidential logging process within the required working-day deadline.
Mistake to avoid: Confusing routine anticipated occupational exposure with a specific exposure incident requiring confidential sharps log recording.
Reference: [5]
Professional judgment and responsibility to colleagues
55. Universality tests consistency across comparable situations
The principle of universality expects that if one individual judges an action right or wrong in a given situation, other people considering the same action in the same situation would make the same judgment. It tests consistency rather than favoring a particular person, while relevant differences between situations still matter, so it is not a universal answer-word shortcut.
Worked example: A hygienist judges falsifying a treatment record unacceptable when a colleague does it, then reaches the same conclusion when a close friend proposes the identical act in identical circumstances.
Mistake to avoid: Changing an ethical judgment solely because the person involved is a favored friend.
Reference: [4]
56. Conflicts of interest require avoidance and disclosure
The ADHA Code of Ethics directs dental hygienists to avoid conflicts of interest and to declare them when they occur, because concealed competing interests undermine accountable decision-making. However, disclosure does not automatically make a conflicted action appropriate or satisfy every applicable financial or referral law.
Worked example: A hygienist recommending a service holds a financial interest in its provider. She declares the interest and then assesses whether the recommendation has genuine patient-centered justification before proceeding.
Mistake to avoid: Assuming that merely mentioning a conflict makes every resulting decision ethically acceptable.
Reference: [4]
57. Recognized limitations require a safety response
The ADHA Code asks hygienists to have realistic expectations of themselves and to maintain a work environment that minimizes harm, so compromised performance should prompt an appropriate safety response rather than being concealed while care continues unchanged.
Worked example: A hygienist notices that severe sleep loss is slowing instrument checks and, before the next patient, arranges coverage and informs the supervising dentist instead of working normally through the schedule.
Mistake to avoid: Believing that personal good intentions cancel the patient risks created by impaired concentration.
Reference: [4]
58. Collaboration combines expertise with confidentiality
The Code encourages developing collaborative professional relationships and exchanging knowledge, yet hygienists function interdependently while still holding professional client relationships confidential, so any disclosure of patient information needs its own separate justification.
Worked example: A hygienist discusses a general periodontal instrumentation technique at a study club, describing the case without names or identifiers, and later requests records through the proper authorized channel.
Mistake to avoid: Sharing identifiable patient details during a helpful educational chat without checking privacy permissions first.
Reference: [4]
59. Substandard care calls for documentation and appropriate reporting
ADHA's code assigns a responsibility to document and report inappropriate, inadequate, or substandard care and illegal provider activities to responsible authorities, using factual records and proper channels while protecting patient confidentiality.
Worked example: After observing a repeated sterilization lapse, a hygienist writes dated, factual notes of what occurred and submits them to the designated authority rather than repeating rumors among coworkers.
Mistake to avoid: Reporting a colleague based on personal dislike instead of specific documented observations and facts.
Reference: [4]
60. Peer review and quality assurance have preventive value
The Code supports peer review for identifying inappropriate, inadequate, or substandard care and workplace quality-assurance programs that help hygienists provide the appropriate standard of care, functioning preventively rather than only after harm occurs.
Worked example: A practice notices recurring charting omissions during a scheduled peer review and revises its workflow checklist, catching the pattern before any patient complaint or injury arises.
Mistake to avoid: Treating quality assurance as punishment after harm rather than a tool for preventing problems.
Reference: [4]
Sources
- California RDH Laws and Ethics Written Examination
- Dental Hygiene Board of California
- Dental Hygiene Board of California
- American Dental Hygienists' Association
- California Code of Regulations, Title 8, Section 5193
- HHS
- HHS
- California Department of Social Services
- California Department of Social Services
- Dental Hygiene Board of California
- Dental Hygiene Board of California
- Dental Hygiene Board of California