PA EFDA Exam Prep UPDATED ACTUAL
Exam Questions and CORRECT Answers
Cingulum - CORRECT ANSWER - a bulge or prominence of enamel found on the
cervical third of the lingual surface of an anterior tooth.
Cusp - CORRECT ANSWER - a major developmental convexity on or near the occlusal
surface of a posterior tooth.
Cusp Of Carabelli - CORRECT ANSWER - The fifth cusp, located on the mesial-lingual
surface of many maxillary first molars. #3 and #14
Fossa - CORRECT ANSWER - irregular depressions or concavities on the surface of
anterior and posterior teeth
Central Fossa - CORRECT ANSWER - the depression or concavity found in the central
portion of the occlusal surface of molars
Ridge - CORRECT ANSWER - The linear elevation on the surface of a tooth.
Marginal Ridge - CORRECT ANSWER - The rounded boarder of enamel that forms the
mesial and distal boundaries of the occlusal surface of molars and premolars.
Triangular Ridge - CORRECT ANSWER - a ridge on a molar or premolar that descends
from the tips of the cusp towards the central part of the occlusal surface.
Transverse Ridge - CORRECT ANSWER - the ridge formed by two triangular ridges that
extend across the surface of posterior teeth.
,Oblique Ridge - CORRECT ANSWER - Ridge crossing the occlusal surface of only
maxillary molars in an oblique direction
major fossae - CORRECT ANSWER -4
lingual Fossa
Central Fossa
Mesial and Distal triangular fossa
Lingual Fossa - CORRECT ANSWER - depression or concavity found on the lingual
surface of mandibular and maxillary incisors located between the mesial and distal marginal
ridges
Triangular Fossa - CORRECT ANSWER - located on the occlusal surface of the molars
and premolars distal to the mesial marginal ridge and mesial to the distal marginal ridge
Triangular Fossa - CORRECT ANSWER - are always bordered by three developmental
ridges one of which is the marginal ridge named according by there location
Developmental Grooves - CORRECT ANSWER - major grooves or lines between the
ridges of a tooth named according to there location
Supplemental groove - CORRECT ANSWER - grooves that are less distinct, shallow
linear depression on the surface of teeth and are supplemental to developmental grooves , do not
mark he junction on primary parts of a tooth
Spillway - CORRECT ANSWER - a shallow depression adjacent to a developmental
groove located on the occlusal surface of posterior teeth, originating in the mesial and distal
triangular fossa,and extending over the mesial and distal marginal ridges towards the buccal and
lingual embrasure areas
, Spillway - CORRECT ANSWER - provides an escape for food from the occlusal surface
during the mastication process
Pit - CORRECT ANSWER - a small pin point depression located at the junction of
developmental grooves at the termination of those grooves.
Fissure - CORRECT ANSWER - developmental or supplemental grooves with incomplete
closure of enamel an explorer may catch or stick because the incomplete closure of the enamel
Wall - CORRECT ANSWER - a vertical or horizontal surface within cavity preparation
named for the surfaces toward which it faces or for a structure it approximates
Cavosurface - CORRECT ANSWER - the uncut tooth structure adjacent to the cavity
preparation.
Line angle - CORRECT ANSWER - A line formed along the junction of two walls or of
one wall and the cavosurface margin and named according to the walls and services involved
Point angle - CORRECT ANSWER - A point formed by the junction of three walls within
a cavity preparation and named according to the three Walls involved
Retentive features - CORRECT ANSWER - Retentive features Grooves pits or prepared
areas in the Dentin along the line angles or point angles of the preparation to enhance the
mechanical retention of the restorative materials and named according to their location
Mamelons - CORRECT ANSWER - Three bulges on the inside so edge of the newly irrupt
it essential incisor which usually disappear from attrition
Cingulum - CORRECT ANSWER - A convex area on the lingual surface of anterior teeth
near the gingiva
Exam Questions and CORRECT Answers
Cingulum - CORRECT ANSWER - a bulge or prominence of enamel found on the
cervical third of the lingual surface of an anterior tooth.
Cusp - CORRECT ANSWER - a major developmental convexity on or near the occlusal
surface of a posterior tooth.
Cusp Of Carabelli - CORRECT ANSWER - The fifth cusp, located on the mesial-lingual
surface of many maxillary first molars. #3 and #14
Fossa - CORRECT ANSWER - irregular depressions or concavities on the surface of
anterior and posterior teeth
Central Fossa - CORRECT ANSWER - the depression or concavity found in the central
portion of the occlusal surface of molars
Ridge - CORRECT ANSWER - The linear elevation on the surface of a tooth.
Marginal Ridge - CORRECT ANSWER - The rounded boarder of enamel that forms the
mesial and distal boundaries of the occlusal surface of molars and premolars.
Triangular Ridge - CORRECT ANSWER - a ridge on a molar or premolar that descends
from the tips of the cusp towards the central part of the occlusal surface.
Transverse Ridge - CORRECT ANSWER - the ridge formed by two triangular ridges that
extend across the surface of posterior teeth.
,Oblique Ridge - CORRECT ANSWER - Ridge crossing the occlusal surface of only
maxillary molars in an oblique direction
major fossae - CORRECT ANSWER -4
lingual Fossa
Central Fossa
Mesial and Distal triangular fossa
Lingual Fossa - CORRECT ANSWER - depression or concavity found on the lingual
surface of mandibular and maxillary incisors located between the mesial and distal marginal
ridges
Triangular Fossa - CORRECT ANSWER - located on the occlusal surface of the molars
and premolars distal to the mesial marginal ridge and mesial to the distal marginal ridge
Triangular Fossa - CORRECT ANSWER - are always bordered by three developmental
ridges one of which is the marginal ridge named according by there location
Developmental Grooves - CORRECT ANSWER - major grooves or lines between the
ridges of a tooth named according to there location
Supplemental groove - CORRECT ANSWER - grooves that are less distinct, shallow
linear depression on the surface of teeth and are supplemental to developmental grooves , do not
mark he junction on primary parts of a tooth
Spillway - CORRECT ANSWER - a shallow depression adjacent to a developmental
groove located on the occlusal surface of posterior teeth, originating in the mesial and distal
triangular fossa,and extending over the mesial and distal marginal ridges towards the buccal and
lingual embrasure areas
, Spillway - CORRECT ANSWER - provides an escape for food from the occlusal surface
during the mastication process
Pit - CORRECT ANSWER - a small pin point depression located at the junction of
developmental grooves at the termination of those grooves.
Fissure - CORRECT ANSWER - developmental or supplemental grooves with incomplete
closure of enamel an explorer may catch or stick because the incomplete closure of the enamel
Wall - CORRECT ANSWER - a vertical or horizontal surface within cavity preparation
named for the surfaces toward which it faces or for a structure it approximates
Cavosurface - CORRECT ANSWER - the uncut tooth structure adjacent to the cavity
preparation.
Line angle - CORRECT ANSWER - A line formed along the junction of two walls or of
one wall and the cavosurface margin and named according to the walls and services involved
Point angle - CORRECT ANSWER - A point formed by the junction of three walls within
a cavity preparation and named according to the three Walls involved
Retentive features - CORRECT ANSWER - Retentive features Grooves pits or prepared
areas in the Dentin along the line angles or point angles of the preparation to enhance the
mechanical retention of the restorative materials and named according to their location
Mamelons - CORRECT ANSWER - Three bulges on the inside so edge of the newly irrupt
it essential incisor which usually disappear from attrition
Cingulum - CORRECT ANSWER - A convex area on the lingual surface of anterior teeth
near the gingiva
