Page 1 of 45
EFDA Written Final – 40 Questions & 100% Correct
Answers – 2025 Edition – Guaranteed Pass
what is an EFDA .......ANSWER......Expanded Functions Dental
Auxiliary
When did it start in OHIO .......ANSWER......1976
How do you become an EFDA .......ANSWER......- complete an
accredited program
- pass the Ohio board exam for EFDA
- register with the state dental board
*Cannot practice EFDA until registered*
how many hours do you need .......ANSWER......100 hours of pre-
clinical
80 hours of clinic
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Who is eligible .......ANSWER......- unlicensed dentists
- dental students
- graduates of foreign dental colleges
- CDA: certified dental assis.
- RDH: licensed or not
What tasks can EFDA do .......ANSWER......- *CAN DO* -->
REMEDIABLE TASKS: dont cause irreparable change in the oral
cavity
e.g. sealants, amalgam, non-metallic
What is beyond an EFDA
"NON-DELEGABLE taks" .......ANSWER......- *CANNOT* DO -->
IRREMEDIABLE TASKS:
- diagnosing
- tx planning
,Page 3 of 45
- final placement or adjustment of fixed or removable appliance
- therapeutic intraoral adjustment of any fixed or removable
appliance
- cutting procedures utilized for preparation of a tooth or
involving the periodontium
- placement of final root canal
- final impression for prosthetic restoration
- occlusal registration for prosthetic restorations
- final placement of restorations or crowns
-retraction of gingival sulcus prior to impressions
-procedures using light amplification (LASER)
limitations to EFDA .......ANSWER......- have to work under *direct
supervision* ==> dentist has to be in the office
, Page 4 of 45
- some things can be done under general supervision (e.g.
sealants, fluoride)
per dentist @ ONE time there can be:
- 3 EFDAs
- 4 RDH
Commission on Dental Testing (CODT) .......ANSWER......- offers
TWO exams/year
- test bank of 14 teeth
- 3 teeth in 2 hours
- 75 question written exam *same day* after clinical
Commission on Dental Competency Assessments (CDCA)
.......ANSWER......- New to EFDA in 2015
- offers 2 public exams @ case western
-offers closed exams at schools
EFDA Written Final – 40 Questions & 100% Correct
Answers – 2025 Edition – Guaranteed Pass
what is an EFDA .......ANSWER......Expanded Functions Dental
Auxiliary
When did it start in OHIO .......ANSWER......1976
How do you become an EFDA .......ANSWER......- complete an
accredited program
- pass the Ohio board exam for EFDA
- register with the state dental board
*Cannot practice EFDA until registered*
how many hours do you need .......ANSWER......100 hours of pre-
clinical
80 hours of clinic
,Page 2 of 45
Who is eligible .......ANSWER......- unlicensed dentists
- dental students
- graduates of foreign dental colleges
- CDA: certified dental assis.
- RDH: licensed or not
What tasks can EFDA do .......ANSWER......- *CAN DO* -->
REMEDIABLE TASKS: dont cause irreparable change in the oral
cavity
e.g. sealants, amalgam, non-metallic
What is beyond an EFDA
"NON-DELEGABLE taks" .......ANSWER......- *CANNOT* DO -->
IRREMEDIABLE TASKS:
- diagnosing
- tx planning
,Page 3 of 45
- final placement or adjustment of fixed or removable appliance
- therapeutic intraoral adjustment of any fixed or removable
appliance
- cutting procedures utilized for preparation of a tooth or
involving the periodontium
- placement of final root canal
- final impression for prosthetic restoration
- occlusal registration for prosthetic restorations
- final placement of restorations or crowns
-retraction of gingival sulcus prior to impressions
-procedures using light amplification (LASER)
limitations to EFDA .......ANSWER......- have to work under *direct
supervision* ==> dentist has to be in the office
, Page 4 of 45
- some things can be done under general supervision (e.g.
sealants, fluoride)
per dentist @ ONE time there can be:
- 3 EFDAs
- 4 RDH
Commission on Dental Testing (CODT) .......ANSWER......- offers
TWO exams/year
- test bank of 14 teeth
- 3 teeth in 2 hours
- 75 question written exam *same day* after clinical
Commission on Dental Competency Assessments (CDCA)
.......ANSWER......- New to EFDA in 2015
- offers 2 public exams @ case western
-offers closed exams at schools
