PA EFDA Boards Exam Questions and
Answers 2026
Function of Anterior Teeth. - Answer- Tear/Incise Food
Function of Posterior Teeth. - Answer- Grind Food
Portion of the tooth that extends from the Incisal or occlusal surface to the CEJ.. -
Answer- Anatomical Crown.
Also referred to as the cervical line ..
Appears as a slight constriction that encircles the tooth... - Answer- CEJ (
Cementoenmael Junction)
The Visible Portion of the Anatomical Crown. - Answer- Clinical crown
Area Where the Root Divides. - Answer- Furcation.
The actual division into 2 OR more roots.. - Answer- Furrow
Same Arch Touches Or Meets... - Answer- Contact Area.
Contact Area
=
Two Purposes.. - Answer- 1) Food Trap (Prevent)
2) Stabilize Dental Arches.
What can eliminate a contact area? - Answer- Tooth Movement.
Loss of Teeth.
Poorly contoured Restorations.
Good Contact
= - Answer- Stabilizes the teeth to prevent drifting or tipping and protect soft tissues.
No Contact
= - Answer- Food Impaction resulting in tissue damage and Plaque Build Up.
Continuous with the inter-proximal space between the teeth.. - Answer- Embrasures.
Covers the anatomical Crown of the Tooth and Varies in Thickness in Different Area's of
the tooth... - Answer- Enamel.
Enamel is thicker at .. - Answer- The Incisal and Occulusal Surface.
,Hardest tissue in the body and is very brittle... - Answer- Enamel.
What color is enamel? - Answer- Yellowish white to grayish white, but also depends on
the underlying dentin.
Enamel is composed of rods (prisms) that are formed as cells called.. - Answer-
Ameloblasts.
The bulk of the tooth is made up of .. - Answer- Dentin.
2nd hardest material in the body... - Answer- Dentin.
The hard connective tissue lying just inside the enamel and cementum.. - Answer-
Dentin.
Normally yellowish white and darker than enamel and slowly darkens with age.. -
Answer- Dentin.
Dentin is distinguished by enamel by.. - Answer- Dentin = Dull flat appearance.
Enamel= translucent and shiny.
With Explorer (when scratched)
Dentin =
Enamel= - Answer- Dentin = Dull Sound.
Enamel= High Pitch.
Formed by cells called odontoblasts and develops with the pulp from dental papilla of
the tooth bud... - Answer- Dentin.
3 Major Types of Dentin... - Answer- 1)Primary.
2) Secondary.
3) Reparative.
Produced before the tooth erupts and shortly after eruption... - Answer- Primary Dentin.
A continuation of primary dentin that forms at a slower rate as the tooth ages and
throughout the life of a tooth.. - Answer- Secondary Dentin.
_____________ OR tertiary dentin forms rapidly when tooth has received an excessive
stimulus from caries, cavity preparation , OR other trama... - Answer- Reparative.
A Defense reaction to an area of injury.. - Answer- Reparative Dentin.
Ridge of enamel on the base or margin of a tooth.. - Answer- Cingulum.
, The hard dental tissue covering the anatomical roots of teeth.. - Answer- Cementum.
Cementum is fromed by cells called.. - Answer- Cementoblasts
Cementum appears.. - Answer- Light yellow, slightly lighter than dentin.
Cementum is visible on teeth where.. - Answer- The gingiva had receded or has been
removed.
Dentin has.. - Answer- - High Fluoride content of all materialized tissue.
- Does NOT have it's own blood supply.
-Rely's on the periodontium ligament for nutrition.
Two Types of Cementum.. - Answer- !) Acellular
2) Cellular
Extends from the cementoenamel junction toward the root apex covering a large portion
of the tooth.. - Answer- Acellular Cementum.
Cannot Replace itself if it is diseased or has been removed mechanically... - Answer-
Acellular Cementum.
On the apex of the root is made of cells that are actively producing new layers of
cementum throughout the life of the tooth.. - Answer- Cellular Cementum.
Provides the developmental protective, and sensory mechanism or the tooth and the
nutrients and metabolic processes necessary to sustain it's life.. - Answer- The Pulp.
The Pulp is in a ____________ _____________ with one or more root canals. -
Answer- Pulp Chamber.
The pulp is divided into... - Answer- 1) The coronal Pulp located in the pulp chamber in
the crown portion of the tooth. Including ; Pulp Horns.
2) Radicular Pulp ( The pulp in the canals of the roots.)
The Pulp serves 4 Functions.. - Answer- 1) Formative or Developmental.
2)Nutritive.
3)Sensory.
4) Defensive or Protective.
Where the nerves, arterioles, and venues (components of arteries and veins) enter and
leave the pulp.. - Answer- Apical Forman.
The pulp may be harmed by.. - Answer- 1) Sterilizing, Cleaning, Drying , and
desensitizing agents.
2) Temperature.
Answers 2026
Function of Anterior Teeth. - Answer- Tear/Incise Food
Function of Posterior Teeth. - Answer- Grind Food
Portion of the tooth that extends from the Incisal or occlusal surface to the CEJ.. -
Answer- Anatomical Crown.
Also referred to as the cervical line ..
Appears as a slight constriction that encircles the tooth... - Answer- CEJ (
Cementoenmael Junction)
The Visible Portion of the Anatomical Crown. - Answer- Clinical crown
Area Where the Root Divides. - Answer- Furcation.
The actual division into 2 OR more roots.. - Answer- Furrow
Same Arch Touches Or Meets... - Answer- Contact Area.
Contact Area
=
Two Purposes.. - Answer- 1) Food Trap (Prevent)
2) Stabilize Dental Arches.
What can eliminate a contact area? - Answer- Tooth Movement.
Loss of Teeth.
Poorly contoured Restorations.
Good Contact
= - Answer- Stabilizes the teeth to prevent drifting or tipping and protect soft tissues.
No Contact
= - Answer- Food Impaction resulting in tissue damage and Plaque Build Up.
Continuous with the inter-proximal space between the teeth.. - Answer- Embrasures.
Covers the anatomical Crown of the Tooth and Varies in Thickness in Different Area's of
the tooth... - Answer- Enamel.
Enamel is thicker at .. - Answer- The Incisal and Occulusal Surface.
,Hardest tissue in the body and is very brittle... - Answer- Enamel.
What color is enamel? - Answer- Yellowish white to grayish white, but also depends on
the underlying dentin.
Enamel is composed of rods (prisms) that are formed as cells called.. - Answer-
Ameloblasts.
The bulk of the tooth is made up of .. - Answer- Dentin.
2nd hardest material in the body... - Answer- Dentin.
The hard connective tissue lying just inside the enamel and cementum.. - Answer-
Dentin.
Normally yellowish white and darker than enamel and slowly darkens with age.. -
Answer- Dentin.
Dentin is distinguished by enamel by.. - Answer- Dentin = Dull flat appearance.
Enamel= translucent and shiny.
With Explorer (when scratched)
Dentin =
Enamel= - Answer- Dentin = Dull Sound.
Enamel= High Pitch.
Formed by cells called odontoblasts and develops with the pulp from dental papilla of
the tooth bud... - Answer- Dentin.
3 Major Types of Dentin... - Answer- 1)Primary.
2) Secondary.
3) Reparative.
Produced before the tooth erupts and shortly after eruption... - Answer- Primary Dentin.
A continuation of primary dentin that forms at a slower rate as the tooth ages and
throughout the life of a tooth.. - Answer- Secondary Dentin.
_____________ OR tertiary dentin forms rapidly when tooth has received an excessive
stimulus from caries, cavity preparation , OR other trama... - Answer- Reparative.
A Defense reaction to an area of injury.. - Answer- Reparative Dentin.
Ridge of enamel on the base or margin of a tooth.. - Answer- Cingulum.
, The hard dental tissue covering the anatomical roots of teeth.. - Answer- Cementum.
Cementum is fromed by cells called.. - Answer- Cementoblasts
Cementum appears.. - Answer- Light yellow, slightly lighter than dentin.
Cementum is visible on teeth where.. - Answer- The gingiva had receded or has been
removed.
Dentin has.. - Answer- - High Fluoride content of all materialized tissue.
- Does NOT have it's own blood supply.
-Rely's on the periodontium ligament for nutrition.
Two Types of Cementum.. - Answer- !) Acellular
2) Cellular
Extends from the cementoenamel junction toward the root apex covering a large portion
of the tooth.. - Answer- Acellular Cementum.
Cannot Replace itself if it is diseased or has been removed mechanically... - Answer-
Acellular Cementum.
On the apex of the root is made of cells that are actively producing new layers of
cementum throughout the life of the tooth.. - Answer- Cellular Cementum.
Provides the developmental protective, and sensory mechanism or the tooth and the
nutrients and metabolic processes necessary to sustain it's life.. - Answer- The Pulp.
The Pulp is in a ____________ _____________ with one or more root canals. -
Answer- Pulp Chamber.
The pulp is divided into... - Answer- 1) The coronal Pulp located in the pulp chamber in
the crown portion of the tooth. Including ; Pulp Horns.
2) Radicular Pulp ( The pulp in the canals of the roots.)
The Pulp serves 4 Functions.. - Answer- 1) Formative or Developmental.
2)Nutritive.
3)Sensory.
4) Defensive or Protective.
Where the nerves, arterioles, and venues (components of arteries and veins) enter and
leave the pulp.. - Answer- Apical Forman.
The pulp may be harmed by.. - Answer- 1) Sterilizing, Cleaning, Drying , and
desensitizing agents.
2) Temperature.
