Updated 2026/27 Efda Study Test (Nooshin) Exam 100% Accurate

UPDATED 2026/27 EFDA STUDY TEST (NOOSHIN) EXAM 100% ACCURATE Amalgam - ANSWER-An alloy, one of the constituents of which is mercury. (43) Axial - ANSWER-Referring to the body region that comprises the head, neck, and trunk. Cementum - ANSWER-Specialized, calcified connective tissue that covers the anatomic root of a tooth. Central fossa, mandibular molar - ANSWER-a relatively broad, deep angular valley in the central portion of the occlusal surface of a mandibular molar. Central fossa, maxillary molar - ANSWER-a relatively broad, deep angular valley in the central portion of the occlusal surface of a maxillary molar. cervical - ANSWER-of or relating to the neck. Cingulum - ANSWER-a bulge or prominence of enamel found on the cervical third of the lingual surface of an anterior tooth. Crossbite - ANSWER-Condition that occurs when a tooth is not properly aligned with its opposing tooth. Crowding - ANSWER-Condition that occurs when teeth are not properly aligned within the arch Cusp - ANSWER-a pronounced elevation on the occlusal surface of a tooth terminating in a conical or rounded surface. Any crown elevation which begins calcification as an independent center. Cusp of Carabelli - ANSWER-the "fifth" cusp located on the mesio-lingual surface of many maxillary first molars. Cusp ridge - 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. Dentin - ANSWER-a calcareous material similar to but harder and denser than bone that composes the principal mass of a tooth Developmental groove - ANSWER-a groove formed by the union of two lobes during growth of the crown. Distal - ANSWER-situated away from the point of attachment or origin or a central point especially of the body Distoclusion - ANSWER-A class II malocclusion in which the mesiobuccal cusp of the maxillary first molar occludes mesial to the mesiobuccal groove of the mandibular first molar Embrasures - ANSWER-the sloped valley between adjacent teeth Enamel - ANSWER-the very hard outer layer of a tooth Fissure - ANSWER-a fault occurring along a developmental groove caused by incomplete or imperfect joining of the lobes. Fossa - ANSWER-a rounded or angular depression of varying size on the surface of a tooth. furcation - ANSWER-is bone loss, usually a result of periodontal disease, affecting the base of the root trunk of a tooth where two or more roots meet gingival - ANSWER-are part of the soft tissue lining of the mouth. They surround the teeth and provide a seal around them. Groove - ANSWER-a small linear depression on the surface of a tooth. Incisal edge - 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. Incisal ridge - ANSWER-the incisal portion of a newly erupted anterior tooth interproximal - ANSWER-situated or used in the areas between adjoining teeth labial - ANSWER-made by placing the blade of the tongue against or near the hard palate labial - ANSWER-of or relating to the lips lingual - ANSWER-relating to, near, or on the side toward the tongue Lingual fossa - ANSWER-a broad, shallow depression on the lingual surface of an incisor or canine. Lobe - ANSWER-a developmental segment of the tooth. they coalesce to form a single unit. Mamelon - 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. Marginal ridges - 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. mesial - ANSWER-of, in, or directed toward the middle line of a body. Mesioclusion - ANSWER-Term used for class III malocclusion Oblique ridges - ANSWER-elevated prominences on the occlusal surfaces of a maxillary molar extending diagonally from the tips of the mesiolingual cusp to the distobuccal cusp. occlusal - ANSWER-denoting a portion of a tooth that comes into contact with a tooth in the other jaw Odontalblast - ANSWER-a cell in the pulp of a tooth that produces dentin. Open bite - ANSWER-A lack of vertical overlap of the maxillary incisors, creating an opening of the anterior teeth Over bite - ANSWER-Increase vertical overlap of the maxillary incisors Overjet - ANSWER-Excessive protrusion of the maxillary incisors periodontal ligament - ANSWER-commonly abbreviated as the PDL, is a group of specialized connective tissue fibers that essentially attach a tooth to the alveolar bone within which it sits. proximal - ANSWER-the point of attachment pulp - ANSWER-is the part in the center of a tooth made up of living connective tissue and cells called odontoblasts. Ridge - ANSWER-a linear elevation on the surface of a tooth. It is named according to its location or form. Supplemental groove - 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. Triangular fossa - 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. Triangular ridges - 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.