RDAEF2 Practice Test California 2026 –Verified Questions &
Answers with Explanations | Updated Exam Prep Chaffey College
RDAEF2 Practice Test California provides 300 multiple-choice questions with verified
updated answers and bold italic explanations for effective exam review. Each question is
followed immediately by its correct answer and rationale, making it ideal for focused study
and quick retention. This updated guide is designed for California RDAEF2 candidate
Section A: California Dental Practice Act & Legal Requirements (Questions 1-40)
1. Which of the following duties CANNOT be performed by an RDAEF2 without supervision?
A) Coronal polishing
B) Final impression for a crown
C) Root planing
D) Placing a temporary restoration
Answer: C) Root planing
Explanation: In California, root planing is not an allowable RDAEF2 procedure. RDAEF2
may perform coronal polishing, final impressions, and temporary restoration
placement, but root planing is not within the RDAEF2 scope of practice.
2. Which of the following duties CAN be performed by an RDAEF2?
A) Final impression for a crown
B) Surgical extraction of a tooth
C) Administration of local anesthesia
D) Diagnosis of dental caries
Answer: A) Final impression for a crown
Explanation: RDAEF2s are permitted to take final impressions for cast restorations.
Surgical extractions, anesthesia administration, and diagnosis are not within the
RDAEF2 scope.
,3. Define General Supervision.
A) The dentist must be present in the treatment facility during the procedure.
B) The dentist must be physically present and directly observe the procedure.
C) The dentist must be employed by the same office but does not have to be present during
the procedure.
D) The dentist must authorize the procedure in writing but does not need to be in the office.
Answer: C) The dentist must be employed by the same office but does not have to be
present during the procedure.
Explanation: General supervision means the RDAEF2 must be employed by a licensed
dentist, but the dentist does not have to be present in the treatment facility during
the procedure.
4. Define Direct Supervision.
A) The dentist must be present in the treatment facility but does not need to see the patient.
B) The dentist must be physically present and personally observe the procedure.
C) The dentist must authorize the procedure in writing but does not need to be in the office.
D) The dentist must be available by phone but does not need to be in the office.
Answer: B) The dentist must be physically present and personally observe the
procedure.
Explanation: Direct supervision requires the dentist to be physically present in the
treatment facility and personally observe the procedure being performed.
5. What should an RDAEF2 do if asked to perform an illegal procedure?
A) Perform the procedure as instructed by the dentist.
B) Inform the dentist the procedure is an infraction of the Dental Practice Act and refuse to
perform the procedure.
C) Ask another RDA to perform the procedure.
D) Document the procedure and report it to the Dental Board after completion.
Answer: B) Inform the dentist the procedure is an infraction of the Dental Practice
Act and refuse to perform the procedure.
Explanation: An RDAEF2 must refuse to perform any procedure that is not within their
legal scope of practice and inform the dentist of the infraction.
,6. Who is allowed to fabricate, adjust, cement, and remove indirect provisional restorations?
A) DA only
B) RDA only
C) RDAEF and RDA
D) RDA and RDAEF
Answer: D) RDA and RDAEF
Explanation: Both RDAs and RDAEFs are allowed to fabricate, adjust, cement, and
remove indirect provisional restorations.
7. Which of the following is NOT a duty an RDAEF2 can perform?
A) Adjust and cement permanent restorations
B) Place, contour, and finish amalgam restorations
C) Perform root canal therapy
D) Size, fit, and cement endodontic master points
Answer: C) Perform root canal therapy
Explanation: Root canal therapy is not within the RDAEF2 scope. RDAEF2s may size, fit,
and cement endodontic master points and accessory points but cannot perform the
therapy itself.
8. What is the maximum examination period for the RDAEF clinical examination?
A) 1 hour
B) 2 hours
C) 2.5 hours
D) 3 hours
Answer: C) 2.5 hours
Explanation: The total examination period for the RDAEF clinical examination shall not
exceed two and one-half hours after the first request for approval to begin the cord
retraction procedure.
9. What is the maximum examination period for the RDAEF practical examination?
A) 45 minutes
B) 60 minutes
, C) 90 minutes
D) 120 minutes
Answer: C) 90 minutes
Explanation: The total examination period for the RDAEF practical examination shall
not exceed ninety (90) minutes after receiving approval to begin.
10. An acceptable patient for the RDAEF clinical examination must have a minimum of how many
teeth per arch?
A) 6
B) 8
C) 10
D) 12
Answer: C) 10
Explanation: An acceptable patient must have a minimum of ten teeth per arch.
11. For the RDAEF clinical examination, the prepared tooth must be which of the following?
A) An incisor with mesial and distal contact
B) A bicuspid or molar with mesial and distal contact
C) A cuspid with mesial and distal contact
D) Any tooth with a class V preparation
Answer: B) A bicuspid or molar with mesial and distal contact
Explanation: The prepared tooth must be a bicuspid or molar and must have had
mesial and distal contact prior to preparation.
12. Which impression material is NOT acceptable alone for the RDAEF clinical examination?
A) Polyvinyl siloxane
B) Polyether
C) Alginate
D) Vinyl polysiloxane
Answer: C) Alginate
Explanation: Alginate impression materials alone are not acceptable for the RDAEF
clinical examination.
Answers with Explanations | Updated Exam Prep Chaffey College
RDAEF2 Practice Test California provides 300 multiple-choice questions with verified
updated answers and bold italic explanations for effective exam review. Each question is
followed immediately by its correct answer and rationale, making it ideal for focused study
and quick retention. This updated guide is designed for California RDAEF2 candidate
Section A: California Dental Practice Act & Legal Requirements (Questions 1-40)
1. Which of the following duties CANNOT be performed by an RDAEF2 without supervision?
A) Coronal polishing
B) Final impression for a crown
C) Root planing
D) Placing a temporary restoration
Answer: C) Root planing
Explanation: In California, root planing is not an allowable RDAEF2 procedure. RDAEF2
may perform coronal polishing, final impressions, and temporary restoration
placement, but root planing is not within the RDAEF2 scope of practice.
2. Which of the following duties CAN be performed by an RDAEF2?
A) Final impression for a crown
B) Surgical extraction of a tooth
C) Administration of local anesthesia
D) Diagnosis of dental caries
Answer: A) Final impression for a crown
Explanation: RDAEF2s are permitted to take final impressions for cast restorations.
Surgical extractions, anesthesia administration, and diagnosis are not within the
RDAEF2 scope.
,3. Define General Supervision.
A) The dentist must be present in the treatment facility during the procedure.
B) The dentist must be physically present and directly observe the procedure.
C) The dentist must be employed by the same office but does not have to be present during
the procedure.
D) The dentist must authorize the procedure in writing but does not need to be in the office.
Answer: C) The dentist must be employed by the same office but does not have to be
present during the procedure.
Explanation: General supervision means the RDAEF2 must be employed by a licensed
dentist, but the dentist does not have to be present in the treatment facility during
the procedure.
4. Define Direct Supervision.
A) The dentist must be present in the treatment facility but does not need to see the patient.
B) The dentist must be physically present and personally observe the procedure.
C) The dentist must authorize the procedure in writing but does not need to be in the office.
D) The dentist must be available by phone but does not need to be in the office.
Answer: B) The dentist must be physically present and personally observe the
procedure.
Explanation: Direct supervision requires the dentist to be physically present in the
treatment facility and personally observe the procedure being performed.
5. What should an RDAEF2 do if asked to perform an illegal procedure?
A) Perform the procedure as instructed by the dentist.
B) Inform the dentist the procedure is an infraction of the Dental Practice Act and refuse to
perform the procedure.
C) Ask another RDA to perform the procedure.
D) Document the procedure and report it to the Dental Board after completion.
Answer: B) Inform the dentist the procedure is an infraction of the Dental Practice
Act and refuse to perform the procedure.
Explanation: An RDAEF2 must refuse to perform any procedure that is not within their
legal scope of practice and inform the dentist of the infraction.
,6. Who is allowed to fabricate, adjust, cement, and remove indirect provisional restorations?
A) DA only
B) RDA only
C) RDAEF and RDA
D) RDA and RDAEF
Answer: D) RDA and RDAEF
Explanation: Both RDAs and RDAEFs are allowed to fabricate, adjust, cement, and
remove indirect provisional restorations.
7. Which of the following is NOT a duty an RDAEF2 can perform?
A) Adjust and cement permanent restorations
B) Place, contour, and finish amalgam restorations
C) Perform root canal therapy
D) Size, fit, and cement endodontic master points
Answer: C) Perform root canal therapy
Explanation: Root canal therapy is not within the RDAEF2 scope. RDAEF2s may size, fit,
and cement endodontic master points and accessory points but cannot perform the
therapy itself.
8. What is the maximum examination period for the RDAEF clinical examination?
A) 1 hour
B) 2 hours
C) 2.5 hours
D) 3 hours
Answer: C) 2.5 hours
Explanation: The total examination period for the RDAEF clinical examination shall not
exceed two and one-half hours after the first request for approval to begin the cord
retraction procedure.
9. What is the maximum examination period for the RDAEF practical examination?
A) 45 minutes
B) 60 minutes
, C) 90 minutes
D) 120 minutes
Answer: C) 90 minutes
Explanation: The total examination period for the RDAEF practical examination shall
not exceed ninety (90) minutes after receiving approval to begin.
10. An acceptable patient for the RDAEF clinical examination must have a minimum of how many
teeth per arch?
A) 6
B) 8
C) 10
D) 12
Answer: C) 10
Explanation: An acceptable patient must have a minimum of ten teeth per arch.
11. For the RDAEF clinical examination, the prepared tooth must be which of the following?
A) An incisor with mesial and distal contact
B) A bicuspid or molar with mesial and distal contact
C) A cuspid with mesial and distal contact
D) Any tooth with a class V preparation
Answer: B) A bicuspid or molar with mesial and distal contact
Explanation: The prepared tooth must be a bicuspid or molar and must have had
mesial and distal contact prior to preparation.
12. Which impression material is NOT acceptable alone for the RDAEF clinical examination?
A) Polyvinyl siloxane
B) Polyether
C) Alginate
D) Vinyl polysiloxane
Answer: C) Alginate
Explanation: Alginate impression materials alone are not acceptable for the RDAEF
clinical examination.
