EFDA Exam

EFDA Exam
Study
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.
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