PA EFDA Exam Prep Questions & Answers 2024/2025

PA EFDA Exam Prep Questions & Answers 2024/2025 Cingulum - ANSWER-a bulge or prominence of enamel found on the cervical third of the lingual surface of an anterior tooth. Cusp - ANSWER-a major developmental convexity on or near the occlusal surface of a posterior tooth. Cusp - ANSWER-Found on the incisal edges of canines, Cusp - ANSWER-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 - ANSWER-Only found on the maxillary first molars Cusp of Carabelli - ANSWER-only found on tooth #3 and #14 Cusp of Carabelli - ANSWER-The fifth cusp, located on the mesial-lingual surface of many maxillaries first molars. Cusp - ANSWER-Maxillary first and second molars and mandibular second molars usually have four of these Fossa - ANSWER-irregular depressions or concavities on the surface of anterior and posterior teeth - ANSWER- Central Fossa - ANSWER-the depression or concavity found in the central portion of the occlusal surface of molars Ridge - ANSWER-The linear elevation on the surface of a tooth. Marginal Ridge - ANSWER-The rounded boarder of enamel that forms the mesial and distal boundaries of the occlusal surface of molars and premolars Marginal Ridge - ANSWER-the mesial and distal boundaries of the lingual surfaces of incisors and cuspids. Triangular Ridge - 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 - ANSWER-the ridge formed by two triangular ridges that extend across the surface of posterior teeth. Oblique Ridge - ANSWER-Ridge crossing the occlusal surface of only maxillary molars in an oblique direction How many major fossae are there - ANSWER-4 lingual Fossa Central Fossa Mesial and Distal triangular fossa Lingual Fossa - ANSWER-depression or concavity found on the lingual surface of mandibular and maxillary incisors located between the mesial and distal marginal ridges Triangular Fossa - 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 - ANSWER-are always bordered by three developmental ridges one of which is the marginal ridge named according by their location Developmental Grooves - ANSWER-major grooves or lines between the ridges of a tooth named according to their location Supplemental groove - 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 - 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 - ANSWER-provides an escape for food from the occlusal surface during the mastication process Pit - ANSWER-a small pin point depression located at the junction of developmental grooves at the termination of those grooves. Fissure - ANSWER-developmental or supplemental grooves with incomplete closure of enamel an explorer may catch or stick because the incomplete closure of the enamel Wall - ANSWER-a vertical or horizontal surface within cavity preparation named for the surfaces toward which it faces or for a structure it approximates Cavosurface - ANSWER-the uncut tooth structure adjacent to the cavity preparation. Line angle - 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 - ANSWER-A point formed by the junction of three walls within a cavity preparation and named according to the three Walls involved Retentive features - 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 - ANSWER-Three bulges on the inside so edge of the newly irrupt it essential incisor which usually disappear from attrition Cingulum - ANSWER-A convex area on the lingual surface of anterior teeth near the gingiva Furcation - ANSWER-The dividing point of a multi rooted tooth Mesial - ANSWER-The surface towards the midline Distal - ANSWER-The surface away from the midline Labial - ANSWER-The outside surface which is towards the lips Lingual - ANSWER-The inside surface which is toward the tongue Palatal - ANSWER-On the maxillary arch towards the palate Buccal - ANSWER-The outside surface which is towards the cheek Occlusal - ANSWER-The chewing surface on posterior teeth Incisal - ANSWER-The biting or cutting edge on anterior teeth Facial - ANSWER-The labial and buccal surfaces may also be known as Apex - ANSWER-At or near the end of the root Groove - ANSWER-A small linear depression on the surface of a tooth Lobe - ANSWER-A developmental segment of the tooth Amalgam - ANSWER-is an alloy powder mix with liquid mercury Silver - ANSWER-Strength Continues...