PA EFDA Exam Prep
Cingulum *** a bulge or prominence of enamel found on the cervical third of the lingual surface of an
anterior tooth.
Cusp *** a major developmental convexity on or near the occlusal surface of a posterior tooth.
Cusp *** Found on the incisal edges of canines,
Cusp *** a premolar usually has two of these on the buccal and lingual surfaces.Mandibular second
premolar may sometimes have three of these.
Cusp Of Carabelli *** Only found on the maxillary first molars
Cusp of Carabelli *** only found on tooth #3 and #14
Cusp of Carabelli *** The fifth cusp, located on the mesial-lingual surface of many maxillary first molars.
Cusp *** Maxillary first and second molars and mandibular second molars usually have four of these
Fossa *** irregular depressions or concavities on the surface of anterior and posterior teeth
***
Central Fossa *** the depression or concavity found in the central portion of the occlusal surface of
molars
Ridge *** The linear elevation on the surface of a tooth.
,Marginal Ridge *** The rounded boarder of enamel that forms the mesial and distal boundaries of the
occlusal surface of molars and premolars
Marginal Ridge *** the mesial and distal boundaries of the lingual surfaces of incisors and cuspids.
Triangular Ridge *** 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 *** the ridge formed by two triangular ridges that extend across the surface of
posterior teeth.
Oblique Ridge *** Ridge crossing the occlusal surface of only maxillary molars in an oblique direction
How many major fossa's are there *** 4
lingual Fossa
Central Fossa
Mesial and Distal triangular fossa
Lingual Fossa *** depression or concavity found on the lingual surface of mandibular and maxillary
incisors located between the mesial and distal marginal ridges
Triangular Fossa *** 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 *** are always bordered by three developmental ridges one of which is the marginal
ridge named according by there location
, Developmental Grooves *** major grooves or lines between the ridges of a tooth named according to
there location
Supplemental groove *** 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 *** 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 *** provides an escape for food from the occlusal surface during the mastication process
Pit *** a small pin point depression located at the junction of developmental grooves at the termination
of those grooves.
Fissure *** developmental or supplemental grooves with incomplete closure of enamel an explorer may
catch or stick because the incomplete closure of the enamel
Wall *** a vertical or horizontal surface within cavity preparation named for the surfaces toward which
it faces or for a structure it approximates
Cavosurface *** the uncut tooth structure adjacent to the cavity preparation.
Line angle *** 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 *** A point formed by the junction of three walls within a cavity preparation and named
according to the three Walls involved
Cingulum *** a bulge or prominence of enamel found on the cervical third of the lingual surface of an
anterior tooth.
Cusp *** a major developmental convexity on or near the occlusal surface of a posterior tooth.
Cusp *** Found on the incisal edges of canines,
Cusp *** a premolar usually has two of these on the buccal and lingual surfaces.Mandibular second
premolar may sometimes have three of these.
Cusp Of Carabelli *** Only found on the maxillary first molars
Cusp of Carabelli *** only found on tooth #3 and #14
Cusp of Carabelli *** The fifth cusp, located on the mesial-lingual surface of many maxillary first molars.
Cusp *** Maxillary first and second molars and mandibular second molars usually have four of these
Fossa *** irregular depressions or concavities on the surface of anterior and posterior teeth
***
Central Fossa *** the depression or concavity found in the central portion of the occlusal surface of
molars
Ridge *** The linear elevation on the surface of a tooth.
,Marginal Ridge *** The rounded boarder of enamel that forms the mesial and distal boundaries of the
occlusal surface of molars and premolars
Marginal Ridge *** the mesial and distal boundaries of the lingual surfaces of incisors and cuspids.
Triangular Ridge *** 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 *** the ridge formed by two triangular ridges that extend across the surface of
posterior teeth.
Oblique Ridge *** Ridge crossing the occlusal surface of only maxillary molars in an oblique direction
How many major fossa's are there *** 4
lingual Fossa
Central Fossa
Mesial and Distal triangular fossa
Lingual Fossa *** depression or concavity found on the lingual surface of mandibular and maxillary
incisors located between the mesial and distal marginal ridges
Triangular Fossa *** 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 *** are always bordered by three developmental ridges one of which is the marginal
ridge named according by there location
, Developmental Grooves *** major grooves or lines between the ridges of a tooth named according to
there location
Supplemental groove *** 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 *** 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 *** provides an escape for food from the occlusal surface during the mastication process
Pit *** a small pin point depression located at the junction of developmental grooves at the termination
of those grooves.
Fissure *** developmental or supplemental grooves with incomplete closure of enamel an explorer may
catch or stick because the incomplete closure of the enamel
Wall *** a vertical or horizontal surface within cavity preparation named for the surfaces toward which
it faces or for a structure it approximates
Cavosurface *** the uncut tooth structure adjacent to the cavity preparation.
Line angle *** 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 *** A point formed by the junction of three walls within a cavity preparation and named
according to the three Walls involved
