EFDA Exam Practice Questions and
Answers 100% Pass
Contact area functions - ✔✔1. Prevent food impaction
2. Stabilize the arches
Pulp Functions - ✔✔1. Developmental
2. Nutrition
3. Sensory
4. Protective
Teeth with 2 buccal grooves - ✔✔19 and 30
Mandibular 1st molars
Oblique ridge - ✔✔Ridges only on the occlusal surface of maxillary molars.
Fossae - ✔✔Irregular depressions or concavities on the surface of teeth.
-Lingual
-Central ( molars & premolars)
-Triangular
Pits - ✔✔Small pinpoint depressions located at the junction of developmental grooves.
Result from incomplete closure of 3 or more adjacent tooth lobes or developmental
grooves.
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 1
, Axial wall - ✔✔-Parallel to long axis of tooth
-Adjacent to pulp
Reasons pulp may be irritated - ✔✔-Caries
-Traumatic occlusion
-Effect of cutting burs
-Desiccation
-Condensation pressure
-Chemical irritation from restorative materials
-Temperature changes
-Dimensional changes
-Lack of marginal seal
Reinforcers - ✔✔Bases. Used to protect pulp from the pressure of amalgam condensing.
Insulators - ✔✔Bases. Insulate pulp from thermal irritation. Must be a poor thermal
conductor.
-ZOE
-Zinc Phosphate
-Zinc polyacrylic (polycarboxylate)
Zinc Phosphate - ✔✔Insulator and reinforcer. Main ingredient phosphoric acid.
Chemically irritating to pulp. Exothermic. Cool glass slab.
Zinc Polyacrylic - ✔✔Polycarboxylate. Kind to pulp. Good for cementing crowns.
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 2
Answers 100% Pass
Contact area functions - ✔✔1. Prevent food impaction
2. Stabilize the arches
Pulp Functions - ✔✔1. Developmental
2. Nutrition
3. Sensory
4. Protective
Teeth with 2 buccal grooves - ✔✔19 and 30
Mandibular 1st molars
Oblique ridge - ✔✔Ridges only on the occlusal surface of maxillary molars.
Fossae - ✔✔Irregular depressions or concavities on the surface of teeth.
-Lingual
-Central ( molars & premolars)
-Triangular
Pits - ✔✔Small pinpoint depressions located at the junction of developmental grooves.
Result from incomplete closure of 3 or more adjacent tooth lobes or developmental
grooves.
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 1
, Axial wall - ✔✔-Parallel to long axis of tooth
-Adjacent to pulp
Reasons pulp may be irritated - ✔✔-Caries
-Traumatic occlusion
-Effect of cutting burs
-Desiccation
-Condensation pressure
-Chemical irritation from restorative materials
-Temperature changes
-Dimensional changes
-Lack of marginal seal
Reinforcers - ✔✔Bases. Used to protect pulp from the pressure of amalgam condensing.
Insulators - ✔✔Bases. Insulate pulp from thermal irritation. Must be a poor thermal
conductor.
-ZOE
-Zinc Phosphate
-Zinc polyacrylic (polycarboxylate)
Zinc Phosphate - ✔✔Insulator and reinforcer. Main ingredient phosphoric acid.
Chemically irritating to pulp. Exothermic. Cool glass slab.
Zinc Polyacrylic - ✔✔Polycarboxylate. Kind to pulp. Good for cementing crowns.
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 2
