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Monday 2 December 2013

Tooth Morphology

A kidney shaped alveolus that is wider faciolingually than mesiodistally is in
Permanent mandibular first premolar
Maximum rotation and translation of both condyles takes place during
Hinge movement
The movement that cannot be seen in horizontal plane diagram of jaw movements is the
Vertical movement
The presence of horizontal overlap in molars prevents the
Cheek biting
The major supporting cusp in the permanent maxillary first molar is the
Mesiopalatal. The other supporting cusps of dentition are the lingual cusps of maxillary posterior teeth and buccal cusps of mandibular posterior teeth.
In the permanent mandibular first molar, the central stop is provided by the
Central fossa
The oblique ridge in the occlusal surface of the permanent mandibular first molar fits in to the concave sulcus formed by the junction of the
Distobuccal groove; Central groove; Lingual groove
The outline form of pulp chamber corresponds to the
Shape of crown. The pulp canal corresponds to the root shape
Radiograph of the teeth does not reveal features of the
Mesial & distal aspect
The root canal of the posterior teeth near the apex breaks in to multiple tiny canals system called as
The delta system. Each of such extra canals is called as an accessory canal and when in middle third it is called as lateral canals.

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