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Primary Mand Molar

QuestionAnswer
List the general traits of all primary teeth (vs secondary teeth). (8) 1. whiter 2. smaller 3. Pronounced cervical ridges 4. Marked constriction at cervix 5. Narrower and longer roots 6. Thinner enamel and dentin 7. Higher pulp horns 8. Larger pulp chambers
The enamel cap of primary molars is ____ and has more _____ depth. The enamel cap of primary molars is thinner and has a more consistent depth.
A comparatively greater thickness of dentin over the ___ wall at____ fossa of primary molars. A comparatively greater thickness of dentin is over the pulpal wall at the occlusal fossa of primary molars.
The pulpal horns are ___ in primary molars, especially the mesial horns, and ____ _____ are proportionately _____. The pulpal horns are higher in primary molars, especially the mesial horns, and pulp chambers are proportionately larger.
The ____ ridges are more _____, esp on the buccal aspect of the first primary molars. The cervical ridges are more pronounced, esp on the buccal aspect of the first primary molars.
The enamel rods at the cervix slope ____ instead of _____ as in permanent teeth. The enamel rods at the cervix slow occlusally instead of gingivally as in the permanent teeth.
The primary molars have a markedly ____ neck compared with the permanent molars. The primary molars have a markedly constricted neck compared with the permanent molars.
The roots of primary teeth are _____ and more _____ in comparison with crown size that those of the permanent teeth. The roots of the primary teeth are longer and more slender in comparison with crown size than those of the permanent teeth.
The roots of the primary molars _____ outs nearer the cervix than do those of the permanent teeth. The roots of the primary molars flare out nearer the cervix than do those of the permanent teeth.
What permanent tooth does the primary mandibular 1st molar resemble? no one; has a crown form unlike that of any perm tooth
Size of primary 1st molar vs primary 2nd molar? Primary 1st molar < Primary 2nd molar
Describe the M-D and C-I distance of primary & secondary molar crowns. They are both WIDER Mesio-Distally and SHORTER Cervico-Occlusally
Describe the crown and roots of primary molars at their cervical portions. They are more slender mesiodistally @ cervical portions.
Describe the primary molar crowns occlusal table. Primary molar crowns have a narrow occlusal table Buccal-Lingually compared to the entire tooth width buccolingually.
Describe the buccal cusp and cusp ridges of primary molars. Buccal cusps are NOT sharp; cusp ridges meet at an obtuse (wide) angle
Describe the cervical ridges on the primary molars. The cervical ridges bucally on the primary molars are much more pronounced, esp on the max and mand 1st molars. Buccal cervical ridges: 1st molar > 2nd molar
Describe the cervical line angle of primary molars. The cervical line curves more apically on the mesial half of the buccal surface.
How do you distinguish between right and left primary molars? The prominent mesial cervDeical ridge on the buccal surface is exaggerated by the curve of the cervical line apically & by the constriction at the cervical line.
Describe the crown length on the mesial and distal views. Mesial crown (longer)> Distal crown
Describe the roots of primary molars. The roots of the primary molars are longer and more slender and flare more, extending out beyond projected outlines of the crowns. (Allows for more rom btw the roots for the devel of perm tooth crowns)
Where are root furcations? Root furcations are nearer to the crown with little or no root trunk compared to sencondary molars.
List how many cusps + their names of the Primary Mandibular 1st molar . 4 cusps: MBC, DBC, MLC, DLC
How many developmental grooves for Primary Mandibular 1st Molar and Name. 3 grooves: CDG, BDG, LDG
List the pits of the Primary Mandibular 1st Molar. MP & CP
Describe the Primary Mandib 1st Molar's Mesial marginal ridge. The Primary mandibular 1st molar resembles no other tooth. The mesial marginal ridge is "over developed".
How is the occlusal table ? The occlusal table is WIDER mesidistally than buccolingually like permanent mandibular molars.
Describe the Primary mandibular 1st molar. The mesial surface converges to the lingual with an acute and prominent mesiobuccal angle of the occlusal table.
Describe the mesiobuccal cusp of the Primary Mandibular 1st Molar! Mesiobuccal cusp is the largest and longest cusps, covering nearly 2/3r of buccal surface, but is not wide buccallingually.
Pronounced transvere ridge runs btw the Mesio-buccal and Mesio-Lingual cusp
Created by: eanguyen
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