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PRIMARY MOLARS

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Maxillary 1st molar

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There are three roots. it has a strong bulbous enamel

bulge that protrudes buccally atthe mesial.

It is the smallest of the deciduousmolars in crown height and in the

mesiodistal dimension It has three root canals and four

pulp horns.

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Lingual root is banana shaped with strong

buccal curvature in the apical 1\3

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Primary maxillary firstmolars.1. uccal aspect. !ote the

f lare of roots.". #esial aspect. Thecervical ridge on thebuccal surface is curved to

the extreme. $lso note thef lat or concave buccalsurface above this bulgeas it approaches theocclusal surface.3. Lingual aspect.%. &cclusal aspect. Thisaspect emphasi'es theextensive width of the

mesial portion of primary

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Maxillary 2ndmolar

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(It loo)s li)e a first permanent molar(There are three roots.

(*sually it has four well developedcusps.(It is somewhat rhomboidal in outline.

(They often have the +arabelli trait.

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the lingual root is large and thic) incomparison with the other two

roots. It is approximately the samelength as the mesiobuccal root. If itshould differ, it will be on the shortside.

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Primary maxillarysecond molars.1. uccal aspect.". #esial aspect.3. &cclusal aspect.

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The upper row- maxillary first molar

The lower row- maxillary secondmolar

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Mandibular st molar

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tooth. It is uni/ue unto itself.(There are two roots.(There is a strong bulbous enamel bulgebuccally at the mesial.(The outline of the mesial root from themesial aspect does not resemble the outline

of any other primary tooth root. The buccaland lingual outlines of the root dropstraight down from the crown and are

approximately parallel for more than halftheir length, tapering only slightly at theapical third. The root end is flat and almost

s/uare. $ developmental depressionusuall extends almost the full len th of

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Primary mandibular

first molars. Thistooth hascharacteristics unli)e

those of any othertooth in the mouth,primary orpermanent.1. uccal aspect.". Lingual aspect.

3. &cclusal aspect.

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Mandibular 2nd molar

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(This tooth resembles the lower firstpermanent molar that is distal to it in

the dental arch.(There are two roots and five cusps. The

three buccal cusps are all about the samesi'e. This is in contrast to the lower firstmolar where the distal cusp is smallerthat the mesiobuccal and distobuccal

cusps.

(The distal of the three buccal cusps may

be shifted of onto the distal marginal

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Primarymandibular

second molars.1. uccal aspect.". Lingual aspect.

3. #esial aspect.%. &cclusal aspect.

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The upper row- mandibularfirst molar

The lower row- mandibular

second molar

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SUMMARY

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(*pper molars have three roots, lowers have two roots.

(*pper and lower second deciduous molars resemblefirst permanent molars in the same /uadrant.(*pper first deciduous molars vaguely resemble upperpremolars. (Lower first deciduous molars are odd anduni/ue unto

themselves.

(0irst deciduous molars upper and lower2 have aprominent bulge of enamel on the buccal at the mesial.These help in determining right and left. Incidentally,

there is a somewhat similar bulge of enamel seen on

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lingual aspect.

$. #axillary firstmolar.

. #axillarysecond molar.

+. #andibular

first molar.

. #andibularsecond molar.

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istal aspect.$. #axillary firstmolar. .#axillary secondmolar.+. #andibular

first molar.. #andibularsecond molar.