Tooth Morphology – Flashcards

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question
study of form and structure of the teeth?
answer
Tooth Morphology
question
How many quadrants in the oral cavity?
answer
Four
question
How many teeth are found in each deciduous arch?
answer
10
question
Place the teeth in the correct order from the mid-line back
answer
Central incisor, lateral incisor, canine, 1st premolar, second premolar, 1st molar, 2nd molar, 3rd molar
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The adult dentition has how many teeth?
answer
32
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The anterior teeth are from?
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Canine to canine
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A person's first tooth erupts at about what age?
answer
6-10 months
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All deciduous teeth are fully erupted around what age?
answer
3
question
The period of mixed dentition is?
answer
6yrs-12yrs
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By what age have all deciduous teeth exfoliated?
answer
12
question
The first permanent tooth erupts usually at what age?
answer
6yrs
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The first molars erupt before the cuspids?
answer
True
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Which permanent teeth are not succedaneous?
answer
Molars
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What is the first permanent tooth to erupt ?
answer
1st molar
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Are the root and the crown are divided by the cervical line?
answer
True
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The clinical crown is defined as?
answer
Portion of the crown that is visible
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How many surfaces do all teeth have?
answer
5
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What is the tooth surface which is located on the tongue side of the mouth
answer
Lingual
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Which tooth surface is located on the cheek side of the posterior teeth?
answer
Buccal
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The opening in the apical portion of each root is?
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Apical forem
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What is a tooth with 2 roots
answer
Bifurcated
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The convex area found on the lingual surfaces of anterior teeth is called?
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cingulum
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What is the shallow rounded or angular depression found on tooth surfaces?
answer
Fossa
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What is the dividing point of a multi-rooted tooth called?
answer
Furcation
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What are 3 bulges on the incisal edges of newly erupted central incisors?
answer
Mamelons
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What is the elevated area of enamel that forms the mesial, and distal borders of each tooth?
answer
Marginal Ridge
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What is the elevated area of enamel which extends obliquely across the tooth?
answer
Oblique ridge
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What is the union of 2 triangular ridges that produce a single ridge across the occlusal surface?
answer
Transverse ridge
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What is an elevation of enamel that descends from the cusp into the middle area of the occlusal surface?
answer
Triangular ridge
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Which teeth play an important role in speech?
answer
Incisors
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Which teeth are sometimes congenitally missing?
answer
Maxillary lateral incisor
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Which teeth are often called the cornerstone of the mouth?
answer
Canine
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Which tooth has the longest root in the maxillary arch?
answer
Canine
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Which premolar has two roots?
answer
Maxillary 1st premolar
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Which tooth is often considered for removal for orthodontic treatment?
answer
Maxillary 1st premolar
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Which tooth contains the cusp of Carrabelli?
answer
Maxillary 1st molar
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The smallest permanent tooth in the dentition is?
answer
Mandibular central incisor
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The mandibular cuspid the mesial slope is longer than the distal slope?
answer
False
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Which tooth has a non-functioning lingual cusp?
answer
Maxillary 1st molar and 1st mandibular premolar
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Which tooth has 2 pulp canals in one of its roots?
answer
Mandibular 1st molar
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The tooth that appears to have 4 equal size cusps
answer
Mandibular 2nd molar
question
Deciduous teeth have large pulp chambers; greater care should be given during a coronal polish so as to not overheat the tooth
answer
True
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