1|Page
CALIFORNIA DENTAL HYGIENE LAW AND
ETHICS EXAM NEWEST 2025 ACTUAL EXAM
COMPLETE 150 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|100% GUARANTEED PASS!!
How often should you test sterilization devices? - ANSWER-at
least once weekly with a biological indicator. Results should be
documented and maintained for 12 months.
How should you clean non-critical items in operatory? -
ANSWER-Items that are unable to be disinfected should be
protected with an impervious barrier that would be changed after
each patient and when visibly soiled.
All other surfaces should be disinfected with a hospital grade
low to intermediate germicide after each patient.
What should be done daily with water/air lines? - ANSWER-
They should be flushed for 2 minutes at beginning of the day
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before attaching handpieces or other devices. The lines and
devices should be flushed between patients for at least 20
seconds.
Definition of Committee - ANSWER-the Dental Hygiene
Committee of California (DHCC)
Definition of Dental Board - ANSWER-the Dental Board of
California
Direct supervision - ANSWER-A set of procedures where The
dentist must physically be present in treatment facility
General supervision - ANSWER-Procedures where the dentist
does NOT need to be physically present in treatment facility
Oral prophylaxis - ANSWER-Preventative and therapeutic
dental procedures that include
-- bacterial debridements with complete removal of supra and
sub calculus, soft deposits, plaque and stains. And to smooth out
tooth surfaces
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What is the purpose of the prophylaxis - ANSWER-To create an
environment for a patient to maintain healthy hard and soft
tissues
Can an RDH perform
the same functions of an rda? - ANSWER-Yes
What does the practice of an rdh include - ANSWER-Dental
hygiene assessment and development, planning and
implementation of a dental hygiene plan.
It also includes oral hygiene education, counseling and health
screenings
Dental hygiene does NOT include what - ANSWER----
Diagnosing or comprehensive treatment plans
---Placing, moving, condensing, carving, removing of permanent
restorations
---surgery, or cutting on hard and soft tissue , removing teeth and
cutting and suturing
--- prescribing meds
---administering local or general anesthesia or oral or parenteral
conscious sedation other than nitrous oxide and oxygen and
allowed local anesthetic.
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What can an rdh do under direct supervision? - ANSWER----
Soft-tissue curettage
---Administration of local anesthesia
---Administration of nitrous oxide and oxygen, whether
administered in tandem or alone.
What can an rdh do under general supervision - ANSWER----
preventative and therapeutic interventions including : oral
prophylaxis, scaling and root planing
---application of topical, therapeutic and subgingival agents used
for the control of caries and periodontal disease.
---the taking of impressions for bleaching trays and activation of
non laser, light curing devices
---the taking of impressions for bleaching trays and placements
of in office tooth whitening devices
What can an rdh do without any supervision - ANSWER--
Educational services
-Oral health training programs
-Oral health screenings
CALIFORNIA DENTAL HYGIENE LAW AND
ETHICS EXAM NEWEST 2025 ACTUAL EXAM
COMPLETE 150 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|100% GUARANTEED PASS!!
How often should you test sterilization devices? - ANSWER-at
least once weekly with a biological indicator. Results should be
documented and maintained for 12 months.
How should you clean non-critical items in operatory? -
ANSWER-Items that are unable to be disinfected should be
protected with an impervious barrier that would be changed after
each patient and when visibly soiled.
All other surfaces should be disinfected with a hospital grade
low to intermediate germicide after each patient.
What should be done daily with water/air lines? - ANSWER-
They should be flushed for 2 minutes at beginning of the day
,2|Page
before attaching handpieces or other devices. The lines and
devices should be flushed between patients for at least 20
seconds.
Definition of Committee - ANSWER-the Dental Hygiene
Committee of California (DHCC)
Definition of Dental Board - ANSWER-the Dental Board of
California
Direct supervision - ANSWER-A set of procedures where The
dentist must physically be present in treatment facility
General supervision - ANSWER-Procedures where the dentist
does NOT need to be physically present in treatment facility
Oral prophylaxis - ANSWER-Preventative and therapeutic
dental procedures that include
-- bacterial debridements with complete removal of supra and
sub calculus, soft deposits, plaque and stains. And to smooth out
tooth surfaces
,3|Page
What is the purpose of the prophylaxis - ANSWER-To create an
environment for a patient to maintain healthy hard and soft
tissues
Can an RDH perform
the same functions of an rda? - ANSWER-Yes
What does the practice of an rdh include - ANSWER-Dental
hygiene assessment and development, planning and
implementation of a dental hygiene plan.
It also includes oral hygiene education, counseling and health
screenings
Dental hygiene does NOT include what - ANSWER----
Diagnosing or comprehensive treatment plans
---Placing, moving, condensing, carving, removing of permanent
restorations
---surgery, or cutting on hard and soft tissue , removing teeth and
cutting and suturing
--- prescribing meds
---administering local or general anesthesia or oral or parenteral
conscious sedation other than nitrous oxide and oxygen and
allowed local anesthetic.
, 4|Page
What can an rdh do under direct supervision? - ANSWER----
Soft-tissue curettage
---Administration of local anesthesia
---Administration of nitrous oxide and oxygen, whether
administered in tandem or alone.
What can an rdh do under general supervision - ANSWER----
preventative and therapeutic interventions including : oral
prophylaxis, scaling and root planing
---application of topical, therapeutic and subgingival agents used
for the control of caries and periodontal disease.
---the taking of impressions for bleaching trays and activation of
non laser, light curing devices
---the taking of impressions for bleaching trays and placements
of in office tooth whitening devices
What can an rdh do without any supervision - ANSWER--
Educational services
-Oral health training programs
-Oral health screenings
