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Question
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Answer
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In the facial and lingual
aspect the permanent teeth are ________ shaped with the base of crown at cervical margin being ________ of uneven side. |
Trapezoid; shortest. The
working surface is longest of the uneven side of the trapezoid |
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A single opposing tooth in
the opposite arch is |
Mandibular central
incisors; Permanent maxillary third molars; Deciduous maxillary second molars. Each tooth in dental arch has two antagonists in the opposite arch except the above mentioned teeth. |
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From the mesial and distal
aspect the permanent anterior teeth are |
Triangular
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The point at which the
contact area is bisected will depend on the |
Outline form of occlusal
aspect; Alignment of teeth; Occlusal relation |
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Normal intact interproximal
spaces are |
Triangular
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A buccal view of an
interproximal contact area will demonstrate the size and location of the contact in the |
Mesiodistal aspect
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The embrasure (s) formed by
2 teeth in the same arch when in contact, their curvature adjacent to the contact area will form the |
Occlusal embrasure; Facial
and lingual embrasure; Gingival embrasure |
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Normal intact healthy
interproximal spaces are filled by |
Inter dental papillae
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Radiographic distance
between from crest of alveolar bone to cementoenamel junction in a healthy intact dentition is approximately |
1 to 1.5 millimeters
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The factors that maintain
the gingival tissue in spite of micro-trauma and microbial invasion include |
Keratinization of gingival;
Density of gingival; Elasticity of gingiva |
Prof. Rooban Thavarajah
Oral and Maxillofacial Pathologist
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