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Thursday 14 November 2013

Tooth Morphology


The apex of the mesiobuccal root is on a line with the tip of the mesiobuccal cusp in the permanent
Maxillary first molar. The apex of the mesiobuccal root is on a line with the buccal groove in the permanent maxillary second molar.
The apex of the palatal root is in line with distolingual cusp in the
Maxillary second molar. The apex of the palatal root is in line with lingual groove in the first molar.
Crowns of permanent mandibular molars are
Wider mesiodistally than buccolingually. For maxillary molars, premolars and mandibular premolars, the crowns are wider buccolingually than mesiodistally.
The number of cusps in a typical human permanent first mandibular molar have
2 Buccal, 2 lingual, 1 distal cusps
During the root formation the apical foramen is actually__________ than pulp chamber at it initial stage of formation.
Larger
If accessory foramina at the cervical third of root leads to main root canal it is a
Lateral canal
The largest pulp chamber in human permanent dentition belongs to the
Maxillary canine
The pulp chamber floor is below the cervical line in the
Permanent maxillary first premolar
The cross section of crown at the cervical level is kidney shaped in 
Permanent maxillary first premolar
The major portion of maxillary canine fossa is above the roots of
Premolars

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