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8/12 Dental Morphology Flashcards
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8/12 Dental Morphology Flashcards
8_12.pdf Flashcards
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1
Question
What does the maxillary arch refer to?
Answer
The maxillary arch refers to the upper jaw (maxilla).
2
Question
What does the mandibular arch refer to?
Answer
The mandibular arch refers to the lower jaw (mandible).
3
Question
What is the alveolar process?
Answer
The alveolar process is the portion of the jaw that serves to support the teeth.
4
Question
What are alveoli?
Answer
Alveoli (plural of alveolus) is the bone of the tooth socket.
5
Question
How many quadrants are human dentitions divided into?
Answer
Each dentition is divided into 4 quadrants.
6
Question
What separates the right and left quadrants of the dentition?
Answer
The median sagittal plane (MSP) separates the right and left quadrants.
7
Question
How does the upper right quadrant relate to the upper left quadrant?
Answer
The upper right (UR) quadrant mirrors the upper left (UL) quadrant.
8
Question
What does the term 'heterodont' mean?
Answer
Heterodont refers to a dentition comprised of different classes of teeth which perform different functions in the mastication (chewing) process.
9
Question
What is a homodont dentition?
Answer
A homodont dentition is one where all the teeth are the same in form and type, as seen in reptiles and fish.
10
Question
What does diphyodont mean?
Answer
Diphyodont means having 2 sets of teeth.
11
Question
What are deciduous teeth also known as?
Answer
Deciduous teeth are also known as primary or baby teeth.
12
Question
What is the significance of permanent dentition?
Answer
Permanent dentition, also known as secondary dentition, consists of teeth that replace the 20 deciduous teeth, totaling 32 teeth.
13
Question
What are incisors?
Answer
Incisors are the two teeth closest to the midline, including central and lateral incisors, involved in cutting and incising food.
14
Question
What are canines also known as?
Answer
Canines are also known as cuspids or 'fangs', and are involved in cutting, piercing, and tearing food.
15
Question
What function do premolars serve?
Answer
Premolars (4th and 5th teeth from the midline) are involved in tearing, holding, and grinding food.
16
Question
What is the role of molars?
Answer
Molars (6th, 7th, and 8th teeth from the midline) are involved in grinding and crushing food.
17
Question
How is the Universal Numbering System organized for permanent teeth?
Answer
In the Universal Numbering System, the maxillary arch is numbered from right to left (1-16) and the mandibular arch from left to right (17-32).
18
Question
How are deciduous teeth labeled in the Universal Numbering System?
Answer
In the Universal Numbering System, the maxillary arch is lettered from A to J and the mandibular arch from K to T.
19
Question
What is the Federation Dentaire Internationale (FDI) numbering system?
Answer
The FDI is a two-digit system where the first digit indicates the quadrant and the second digit indicates the tooth within the quadrant.
20
Question
What is the Palmer Notation System?
Answer
The Palmer Notation System utilizes four brackets to denote each of the four quadrants, with permanent teeth numbered 1-8 and deciduous teeth lettered A-E.
21
Question
What are dental surfaces?
Answer
Facial surfaces are those that face the cheeks or lips, labial surfaces are of anterior teeth that touch the lips, and buccal surfaces are of posterior teeth that contact the cheeks.
22
Question
What are the surfaces facing the tongue called?
Answer
The surfaces facing the tongue are called lingual surfaces.
23
Question
What does the occlusal surface refer to?
Answer
The occlusal surfaces of the premolars and molars come in contact with those of the opposing jaw and are involved in the chewing/grinding of food.
24
Question
What are the mesial and distal surfaces?
Answer
Mesial surfaces are toward the median sagittal plane, and distal surfaces are away from the median sagittal plane.
25
Question
What are the proximal or interproximal surfaces?
Answer
Proximal (or interproximal) surfaces face the adjoining teeth and can be called either mesial or distal.
26
Question
What is enamel?
Answer
Enamel is the outer surface of the anatomical crown, composed mostly of hydroxyapatite and organized in the form of enamel rods.
27
Question
What covers the outer surface of the anatomical root?
Answer
Cementum is the thin layer that covers the outer surface of the anatomical root.
28
Question
What constitutes the largest portion of the tooth?
Answer
Dentin forms the largest portion of the tooth, covered by enamel on the anatomical crown and cementum on the root.
29
Question
What does the pulp contain?
Answer
The pulp contains nerves, arterioles, venules, capillaries, lymph channels, connective tissue cells, odontoblasts, fibroblasts, macrophages, collagen, and fine fibers.
30
Question
Where do the crown and root of the tooth join?
Answer
The crown and root join at the cementoenamel junction (CEJ) or cervical line (CL).