PA EFDA Board Final Exam 2025/2026 Graded A+
Questions and 100% Correct Answers – (Success
Guaranteed!!)
Class 1 Decay - Pit and fissure cavities
Class 2 Decay - Posterior interproximal cavities
Class 3 Decay - Anterior interproximal cavities
Class 4 Decay - Anterior interproximal cavities involving the incisal angle
Class 5 Decay - Smooth surface cavities, near gumline
Class 6 Decay - Cavities or abrasions involving the a branded incisal edge or the occlusion surface
Apex - At or near the end of the root
Apical Foramen - opening in the end if the tooth through which nerve and blood vessels enter. may
be more than one opening at end if root
bifurcated - when there are two roots on one tooth
buccal groove - linear depression forming a groove that extends from the middle of the buccal
surface to the occlusal surface of the tooth
Cingulum - A convex area on the lingual surface of the anterior teeth near the gingiva
cusp - pointed or rounded mound on the crown
Cusp of Carabelli - The fifth supplemental cusp found on the lingual to the mesiolingual cusp of most
maxillary 1st molars
, Developmental Groove - Groove formed by the uniting of loves during development of the crown of
the tooth
Fissure - developmental Groove resulting from an imperfect union where lobes come together
Fossa - shallow rounded or angular depression
Furcation - dividing point of a multi-rooted tooth
lobes - separate parts that come together to form a tooth; in molars-become cusps
Mamelons - 3 bulges on the incisal edge of newly erupted central incisor; disappear from normal
wear
Marginal ridge - elevated area of enamel that forms the mesial and distal birders of the lingual
surface of the anterior teeth and the mesial and distal borders of the occlusal surface of posterior
teeth
Oblique ridge - Elevated area of enamel that extends obliquely across the occlusal of the tooth. On
maxillary first molars, the oblique Ridge extends from the distobuccal cusp to the mesiolingual cusp
Pit - place where the grooves come together or fissures cross
Ridge - linear elevation of enamel found on the tooth
supplemental groove - shallow, linear groove that radiates from the developmental groove; wrinkled
look on the tooth
Transverse Ridge - union of 2 triangular ridges that produces a single ridge of elevation across the
occlusal surface of a posterior tooth
Triangular Ridge - Ridge or elevation that descends from the cusp and widens as it runs down to the
middle area of the occlusal surface
Questions and 100% Correct Answers – (Success
Guaranteed!!)
Class 1 Decay - Pit and fissure cavities
Class 2 Decay - Posterior interproximal cavities
Class 3 Decay - Anterior interproximal cavities
Class 4 Decay - Anterior interproximal cavities involving the incisal angle
Class 5 Decay - Smooth surface cavities, near gumline
Class 6 Decay - Cavities or abrasions involving the a branded incisal edge or the occlusion surface
Apex - At or near the end of the root
Apical Foramen - opening in the end if the tooth through which nerve and blood vessels enter. may
be more than one opening at end if root
bifurcated - when there are two roots on one tooth
buccal groove - linear depression forming a groove that extends from the middle of the buccal
surface to the occlusal surface of the tooth
Cingulum - A convex area on the lingual surface of the anterior teeth near the gingiva
cusp - pointed or rounded mound on the crown
Cusp of Carabelli - The fifth supplemental cusp found on the lingual to the mesiolingual cusp of most
maxillary 1st molars
, Developmental Groove - Groove formed by the uniting of loves during development of the crown of
the tooth
Fissure - developmental Groove resulting from an imperfect union where lobes come together
Fossa - shallow rounded or angular depression
Furcation - dividing point of a multi-rooted tooth
lobes - separate parts that come together to form a tooth; in molars-become cusps
Mamelons - 3 bulges on the incisal edge of newly erupted central incisor; disappear from normal
wear
Marginal ridge - elevated area of enamel that forms the mesial and distal birders of the lingual
surface of the anterior teeth and the mesial and distal borders of the occlusal surface of posterior
teeth
Oblique ridge - Elevated area of enamel that extends obliquely across the occlusal of the tooth. On
maxillary first molars, the oblique Ridge extends from the distobuccal cusp to the mesiolingual cusp
Pit - place where the grooves come together or fissures cross
Ridge - linear elevation of enamel found on the tooth
supplemental groove - shallow, linear groove that radiates from the developmental groove; wrinkled
look on the tooth
Transverse Ridge - union of 2 triangular ridges that produces a single ridge of elevation across the
occlusal surface of a posterior tooth
Triangular Ridge - Ridge or elevation that descends from the cusp and widens as it runs down to the
middle area of the occlusal surface
