dental ana_outlines of teeth

[preciousdentist]

"OUTLINES OF TEETH"


TREPEZOID: four sided figure with one pair of parallel sides
1.trepezoid:
a.labial/buccal and lingual/palatal aspects of all teeth. (longest uneven side towards incisal or occlusal surface)

b.mesial and distal sides of all maxillary posterior teeth.(shortest uneven side towrds occlusal surface)


2.Triangle: mesial and distal aspects of all anterior teeth

RHOMBOID: a parallelogram in which adjacent sides are of unequal length and angles are oblioque.


3. rhomboid: mesial and distal side of mandibular posterior teeth.

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[xactreality]

I will add:

rhomboidal : occlusal of max post (obtuse angles are ML and DB same cusps that form the oblique ridge, to help remember OBtuse and OBlique same cusps)
pentagonal (5 sided): occlusal of mandibular FIRST molar (it has 5 cusps)
and facial of all canines.

 

[xactreality]

oh and remember that the rhomboidal outline of the proximal view of mandibular molars is due to thier lingual inclination and this encourages cusp fracture.

 

[preciousdentist]

thank alot for additional information. its really helpful.

 

[preciousdentist]

also cud any1 plz tell the outlines of occlusal surfaces of all the teeth, if possible.

 

[jaskiran]

Thanks guys....can anybody answer this question-
Highest and sharpest cusp on primary mandibular first molaris
1.mesiolingual
2.mesiobuccal
3.distobuccal
4.distolingual

 

[dmn]

Thanks guys....can anybody answer this question-



Highest and sharpest cusp on primary mandibular first molaris
1.mesiolingual
2.mesiobuccal
3.distobuccal
4.distolingual

 

[xactreality]

occlusal outline of mandibular molars is rectangular, except the 1st molar which is pentagonal coz it has 5 cusps.
the mandibular 2nd premolar is square.