1|Page
RDH Laws and Ethics Exam 2025 With 300 Real Test
Prep Questions and Correct Answers/ CA RDH
Laws & Ethics Test / Registered Dental Hygienist
(RDH) Laws and Ethics Exam 2025 (new!)
Direct Supervision - ...ANSWER...✓✓ Dentist gives
instructions and physically present in building when
treatment is being completed
General Supervision - ...ANSWER...✓✓ Dentist gives
instructions but does not have to be present in the
building when treatment is being completed
Oral prophylasis - ...ANSWER...✓✓ preventive and
therapeutic dental procedures of bacterial debridement
both supra and subgingivally of calculus, soft deposits,
and plaque, plus smoothing of tooth surfaces
RDH Duties - ...ANSWER...✓✓ DH assessment, Develop
plan and implement DH care plan, oral hygiene exam,
counseling, and health screenings, local anesthesia, NO2,
and soft tissue curettage, apply non aerosol, non caustic
topical agents, and duties of RDA if licensed before
January 2006
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Practice of RDH do not include - ...ANSWER...✓✓
Diagnosis and comprehensive treatment planning,
placing, condensing, carving, or removal of permanent
restorations, surgery or cutting on hard or soft tissues
including but not limited to the removal of teeth and the
cutting and suturing of soft tissue, prescribing
medications, and administering local or general
anesthesia or oral or parenteral conscious sedation
except administer NO2
RDH functions under General Supervision -
...ANSWER...✓✓ Prophy, SRP, topical, therapeutic, and
subgingival agents to control caries and perio,
impressions for bleaching trays, applying/activating
whitening agents with non laser, light curing devices, any
duty that does not require direct supervision unless it
would give rise to emergency situation
RDH functions with no supervision - ...ANSWER...✓✓
Educational services, Oral health training programs, Oral
health screenings, Refer any screened patients to dentist
for comp exam,
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RDH License validity - ...ANSWER...✓✓ Expires every 2
years at midnight on last day of birth month.
Change of address - ...ANSWER...✓✓ Report changes
within 30 days
Change of Name - ...ANSWER...✓✓ Report changes within
10 days
Continue education for RDH - ...ANSWER...✓✓ 25 units of
CE every 2 years and is not required on first renewal. Max
number of CE 8 in one day. 12 CE can be correspondence /
online. 2 CE must be infection control, 2 most be in CA
law. Retain receipts for up to 4 years for audit purposes
Instruments that penetrate oral tissues - ...ANSWER...✓✓
Critical instruments
Instruments that contact but do not penetrate oral tissues
- ...ANSWER...✓✓ semi-critical instruments
RDH Laws and Ethics Exam 2025 With 300 Real Test
Prep Questions and Correct Answers/ CA RDH
Laws & Ethics Test / Registered Dental Hygienist
(RDH) Laws and Ethics Exam 2025 (new!)
Direct Supervision - ...ANSWER...✓✓ Dentist gives
instructions and physically present in building when
treatment is being completed
General Supervision - ...ANSWER...✓✓ Dentist gives
instructions but does not have to be present in the
building when treatment is being completed
Oral prophylasis - ...ANSWER...✓✓ preventive and
therapeutic dental procedures of bacterial debridement
both supra and subgingivally of calculus, soft deposits,
and plaque, plus smoothing of tooth surfaces
RDH Duties - ...ANSWER...✓✓ DH assessment, Develop
plan and implement DH care plan, oral hygiene exam,
counseling, and health screenings, local anesthesia, NO2,
and soft tissue curettage, apply non aerosol, non caustic
topical agents, and duties of RDA if licensed before
January 2006
,2|Page
Practice of RDH do not include - ...ANSWER...✓✓
Diagnosis and comprehensive treatment planning,
placing, condensing, carving, or removal of permanent
restorations, surgery or cutting on hard or soft tissues
including but not limited to the removal of teeth and the
cutting and suturing of soft tissue, prescribing
medications, and administering local or general
anesthesia or oral or parenteral conscious sedation
except administer NO2
RDH functions under General Supervision -
...ANSWER...✓✓ Prophy, SRP, topical, therapeutic, and
subgingival agents to control caries and perio,
impressions for bleaching trays, applying/activating
whitening agents with non laser, light curing devices, any
duty that does not require direct supervision unless it
would give rise to emergency situation
RDH functions with no supervision - ...ANSWER...✓✓
Educational services, Oral health training programs, Oral
health screenings, Refer any screened patients to dentist
for comp exam,
, 3|Page
RDH License validity - ...ANSWER...✓✓ Expires every 2
years at midnight on last day of birth month.
Change of address - ...ANSWER...✓✓ Report changes
within 30 days
Change of Name - ...ANSWER...✓✓ Report changes within
10 days
Continue education for RDH - ...ANSWER...✓✓ 25 units of
CE every 2 years and is not required on first renewal. Max
number of CE 8 in one day. 12 CE can be correspondence /
online. 2 CE must be infection control, 2 most be in CA
law. Retain receipts for up to 4 years for audit purposes
Instruments that penetrate oral tissues - ...ANSWER...✓✓
Critical instruments
Instruments that contact but do not penetrate oral tissues
- ...ANSWER...✓✓ semi-critical instruments
