EFDA study guide UPDATED Exam
Questions and CORRECT Answers
Incisal edge - CORRECT ANSWER - formed by the junction of the linguoincisal surfaces
of
an anterior tooth.
created a surface linguoincisally. This surface forms an angle with
the labial surface.
Lobe - CORRECT ANSWER - a developmental segment of the tooth. they
coalesce to form a single unit.
Mamelon - CORRECT ANSWER - a rounded or conical prominence on the incisal ridge
of a
newly erupted incisor. They are usually three in number and soon
disappear as the result of wear.
Ridge - CORRECT ANSWER - a linear elevation on the surface of a tooth. It is named
according to its location or form.
Cusp ridge - CORRECT ANSWER - an elevation which extends in a mesial and distal
direction from the cusp tip. They form the buccal and lingual
margins of the occlusal surfaces of the posterior teeth.
Incisal ridge - CORRECT ANSWER - the incisal portion of a newly erupted anterior tooth
Marginal ridges - CORRECT ANSWER - elevated, crests or rounded folds of enamel
which
form the mesial and distal margins of the occlusal surfaces of the
, posterior teeth and the lingual surfaces of anterior teeth.
Oblique ridges - CORRECT ANSWER - elevated prominences on the occlusal surfaces of
a
maxillary molar extending diagonally from the tips of the
mesiolingual cusp to the distobuccal cusp.
Triangular ridges - CORRECT ANSWER - prominent elevations, triangular in cross
section,
which extend from the tip of a cusp toward the central portion of the
occlusal surface of premolars and molars. They are named for the
cusp to which they belong.
Supplemental groove - CORRECT ANSWER - an indistinct linear depression, irregular in
extent and direction, which does not demarcate major divisional areas
of a tooth. These often give the occlusal surface a wrinkled
appearance.
Developmental groove - CORRECT ANSWER - a groove formed by the union of two
lobes
during growth of the crown.
Groove - CORRECT ANSWER - a small linear depression on the surface of a tooth.
Triangular fossa - CORRECT ANSWER - a comparatively shallow pyramid-shaped
depression
on the occlusal surfaces of the posterior teeth, located just within the
confines of the mesial and/or distal marginal ridges.
Questions and CORRECT Answers
Incisal edge - CORRECT ANSWER - formed by the junction of the linguoincisal surfaces
of
an anterior tooth.
created a surface linguoincisally. This surface forms an angle with
the labial surface.
Lobe - CORRECT ANSWER - a developmental segment of the tooth. they
coalesce to form a single unit.
Mamelon - CORRECT ANSWER - a rounded or conical prominence on the incisal ridge
of a
newly erupted incisor. They are usually three in number and soon
disappear as the result of wear.
Ridge - CORRECT ANSWER - a linear elevation on the surface of a tooth. It is named
according to its location or form.
Cusp ridge - CORRECT ANSWER - an elevation which extends in a mesial and distal
direction from the cusp tip. They form the buccal and lingual
margins of the occlusal surfaces of the posterior teeth.
Incisal ridge - CORRECT ANSWER - the incisal portion of a newly erupted anterior tooth
Marginal ridges - CORRECT ANSWER - elevated, crests or rounded folds of enamel
which
form the mesial and distal margins of the occlusal surfaces of the
, posterior teeth and the lingual surfaces of anterior teeth.
Oblique ridges - CORRECT ANSWER - elevated prominences on the occlusal surfaces of
a
maxillary molar extending diagonally from the tips of the
mesiolingual cusp to the distobuccal cusp.
Triangular ridges - CORRECT ANSWER - prominent elevations, triangular in cross
section,
which extend from the tip of a cusp toward the central portion of the
occlusal surface of premolars and molars. They are named for the
cusp to which they belong.
Supplemental groove - CORRECT ANSWER - an indistinct linear depression, irregular in
extent and direction, which does not demarcate major divisional areas
of a tooth. These often give the occlusal surface a wrinkled
appearance.
Developmental groove - CORRECT ANSWER - a groove formed by the union of two
lobes
during growth of the crown.
Groove - CORRECT ANSWER - a small linear depression on the surface of a tooth.
Triangular fossa - CORRECT ANSWER - a comparatively shallow pyramid-shaped
depression
on the occlusal surfaces of the posterior teeth, located just within the
confines of the mesial and/or distal marginal ridges.
