Tooth Morphology-2

Questions	Answer
On the occlusal surface of posterior teeth triangular fossa are found along the	Proximal to marginal ridge
If found, in anterior teeth, the triangular fossa is usually found on the	Palatal surface at edge of lingual fossa
A long valley like depression in any surface of tooth often between ridges/ cusp is the	Sulcus
A sulcus at its junction of its incline usually has a	Groove
A shallow line between primary parts of a crown or a root is the	Developmental groove
A shallow line on any surface of tooth that does not demarcate primary parts of  a tooth is the	Supplemental groove
The pinpoint depressions along the developmental grooves are the	Pits
Lobes are primary section of formation in the development of crown and are represented by the	Cusp; Mamelons; Cingulum
The number of line angles and point angles in an anterior teeth	6; 4
The number of line angles and point angles in a posterior teeth	8; 4
The important indicator(s) of dental age used clinically often is (are)	Calcification extent; Level of root formation; Eruption of teeth
The evidence of calcification for a deciduous dentition is observed by	4th month of intra uterine life. Near the end of the 6th month of intrauterine life all deciduous teeth would have began their development.
The human deciduous mandibular central incisors erupt by	6 months
The human deciduous canine erupt by	16 months
The general order of deciduous teeth eruption is	Central incisor, lateral incisor, 1st molar, canine, 2nd molar
The deciduous teeth is use for approximately for	5 to 11.5 years
Second permanent tooth to erupt in the oral cavity is	Mandibular central incisor. First molar is the first permanent teeth to erupt in the oral cavity.
The follicles of developing anterior teeth are positioned	Lingual. The developing premolars are placed within the bifurcation of deciduous molars.
The general eruption schedule of permanent dentition in mandible is	6123457. The maxillary schedule is 6124537
The teeth that is subject to many anomalies and variation in the form is the	Permanent third molars