EFDA final Questions and Correct
Answers | Latest Update
what is an EFDA
Expanded Functions Dental Auxiliary
When did it start in OHIO
1976
How do you become an EFDA
- 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
100 hours of pre-clinical
80 hours of clinic
Who is eligible
- unlicensed dentists
- dental students
- graduates of foreign dental colleges
- CDA: certified dental assis.
- RDH: licensed or not
for inquiry mail me @
, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
What tasks can EFDA do
- *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"
- *CANNOT* DO --> IRREMEDIABLE TASKS:
- diagnosing
- tx planning
- 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
- have to work under *direct supervision* ==> dentist has to be in the office
- some things can be done under general supervision (e.g. sealants, fluoride)
for inquiry mail me @
, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
per dentist @ ONE time there can be:
- 3 EFDAs
- 4 RDH
Commission on Dental Testing (CODT)
- 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)
- New to EFDA in 2015
- offers 2 public exams @ case western
-offers closed exams at schools
- 100 questions written exam *different day*
What is the slow speed hand piece used for?
- finishing and polishing composite restorations
- coronal polishing
part to the slow speed
1. swivel adaptor
2. motor to angle adaptor (attaches to latch head and friction grip head)
3. friction grip head
4. latch head
5. motor
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