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Dental Morphology > Test 1 > Flashcards

Test 1 Flashcards

1
Q

Formed in response to irritation

A

Reparative Dentin

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2
Q

Uniform layer of dentin around pulp

A

Physiological Secondary Dentin

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3
Q

Cementum that covers cervical portion of root

A

Cellular Cementum

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4
Q

Cementum that covers the apical portion of root

A

Acellular Cementum

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5
Q

different types and classes of teeth preform different functions

A

Herterodont

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6
Q

A heterodontic dentition that has only one set of teeth

A

monophyodont

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7
Q

A heterodontic dentition that has two sets of teeth

A

diphyodont

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8
Q

A hertodontic dentition that has many sets of teeth-continually replacing

A

polyphyodont

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9
Q

First stage of dentition, deciduous

A

Primary Set

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10
Q

Second stage of dentition, secondary

A

Permanent Set

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11
Q

What makes up primary dentition according to the teeth

A

20 teeth, 2 arches-10 on each. 4 quadrents- 5 in each-molars, canines and incisors

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12
Q

What makes up permanent dentition according to the teeth

A

32 teeth, 2 arches-16 on each 4 quadrants 8 in each-molars, premolars, canines and incisors

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13
Q

Primary dental formula

A

2-1-2

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14
Q

Permanent dental formula

A

2-1-2-3

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15
Q

Permanent teeth that are succedaneous

A

canines, premolars and incisors

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16
Q

which teeth are permanent but not succedaneous

A

molars

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17
Q

Characteristics that distinguish teeth in the primary dentition from those in the permanent dentition.

A

Set traits

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18
Q

Characteristics that distinguish maxillary from mandibular teeth.

A

Arch traits

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19
Q

Characteristics that differentiate the four categories or classes of teeth (incisors, canines, premolars, molars).

A

Class Traits

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20
Q

Characteristics that differentiate teeth within a particular class (central & lateral incisor or 1st & 2nd premolar or 1st, 2nd, & 3rd molar).

A

Type Traits

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21
Q

Characteristics that distinguish the teeth of the left quadrant from their counterparts in the right quadrant within an arch.

A

Side traits

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22
Q

What is the Standard order for naming

A

Set, Arch, Quadrant, Type and Class

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23
Q

The inner surface of the cementum lining the root

A

Cemenodentineal junction

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24
Q

Separates anatomical crown from anatomical root

A

Cementoenamel junction

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25
Q

96% hydroxyapatite, hardest substance in body

A

Enamel

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26
Q

70% hydroxyapatite, underlies enamel

A

Dentin

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27
Q

65% hydroxyapatite, very thin layer of tissue surrounding tooth

A

Cementum

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28
Q

Soft non calcified tissue in tooth cavity

A

Pulp

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29
Q

Pertaining to the crown

A

Coronal

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30
Q

Pertaining to the root

A

Apical

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31
Q

How many line angles are there

A

8

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32
Q

How many point angles are there

A

4

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33
Q

Small bumps on anterior teeth

A

mammelons

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34
Q

located on the mesial and distal border of the

occlusal surfaces

A

Marginal Ridge

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35
Q

located on each major cusp of posterior teeth and extends downward from the cusp tip toward the middle of the occlusal surface faciolingually.

A

Triangular ridge

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36
Q

crosses the occlusal surface in a buccolingual direction

A

Transverse ridge

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37
Q

crosses the occlusal surface diagonally

A

oblique ride

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38
Q

an irregular, usually rounded depression or concavity.

A

fossa

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39
Q

small, depressed area where developmental grooves join or terminate. Is usually found in the deepest portion of a fossa.

A

Pits

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40
Q

two bones, right & left, that unite to form the upper jaw and support the maxillary teeth.

A

Maxilla

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41
Q

What are the bones of the Maxilla

A

Palatine process, Zygomatic, Alveolar and Frontal

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42
Q

the strong, horse-shaped bone that forms the lower jaw.

A

Mandible

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43
Q

What are the bones of the Mandible

A

Body of Mandible, Mandibular Ramus and Angle of the Mandible

44
Q

that part of the periodontium that consists of mucous tissue which surrounds a tooth at the cervix, and which extends to cover the maxillary and mandibular processes.

45
Q

the bony lining of the socket (alveolus) that holds the root(s) of the tooth and is a portion of the maxillary and mandibular processes.

A

Alveolar bone

46
Q

collagenous fiber bundles that surround the root(s) of a tooth and connect the cementum with the alveolar bone and a portion of the gingiva.

A

Periodontal ligament

47
Q

proliferation of cells called the dental papilla in the appearance of a hollowed cap and becomes the enamel organ.

A

Cap Stage of tooth development

48
Q

known for histodifferentiation & histomorphodifferentiation. The enamel organ is bell-shaped and the majority of cells are called stellate reticulum. Cervical loop forms.

A

Bell Stage of tooth development

49
Q

Derived from ectoderm

A

Enamel organ, enamel

50
Q

Enamel is derived from what cell

A

ameloblasts

51
Q

Dentin is derived from what cell

A

odontoblasts

52
Q

Pulp and Dentin derived from over all region

A

Dental Papilla

53
Q

Cementum is derived from what cell

A

Cementoblasts

54
Q

Peridontal ligament is derived from what cell

A

Fibroblasts

55
Q

Alveolar bone is derived from what cell

A

Osteoblasts

56
Q

Cementoblasts, Fibroblasts, and Osteoblasts come from what larger region of cells

A

Dental Follicle-Ectomesenchyme

57
Q

Which Cells are derived from ectomesenchyme

A

Cementoblasts, Osteoblasts and Fibroblasts aka Cementum, Alveolar bone and peridontal ligament

58
Q

What cells are derived from mesenchyme

A

Odontoblasts and Pulp (dentin)

59
Q

represent that part of the oral epithelium that has potencies for tooth formation. In 5th to 6th week in utero.

A

Initiation

60
Q

causes regular changes in the size and proportions of the growing tooth germ. Tooth germ has the potential to progress to more advanced development. In 4th or 5th month of development.

A

Proliferation (bud-early cap stage)

61
Q

undergo definite morphologic and functional changes & acquire their functional assignments

A

Histodifferentiation

62
Q

the morphologic pattern or basic form and relative size of the tooth is established by differential growth.

A

Morphodifferentiation

63
Q

occurs where teeth interact through mastication and speech. Surfaces wear away.

64
Q

single layer of columnar cells which become ameloblasts

A

Inner enamel Epithelium

65
Q

single layer of cuboidal cells near the rich vascular plexus.

A

Outer enamel Epithelium

66
Q

Where is enamel the thickest?

A

thickest on incisal & occlusal surfaces and tapers toward the cervical line.

67
Q

Uniform layer of dentin around pulp

A

Physiological Secondary dentin

68
Q

Dentin formed in response to irratation

A

reparative dentin

69
Q

What are four major functions of human teeth

A

Mastication, Esethetics, Phonics and Sustenance

70
Q

How many lobes do canines incisors and premolars have

A

4 lobes, 3 facial, 1 lingual

71
Q

How many lobes do molars have?

72
Q

Which teeth have 5 lobes?

A

Mandibular 1st molar and Mandibular 2d pre molar

73
Q

Reptilian Stage of tooth development

74
Q

Early mammalian stage of tooth development

A

Tricolodont

75
Q

Triangular stage of tooth development

A

Triturbercular

76
Q

Human stage of tooth development

A

Quadritubercular

77
Q

anterioposterior curvature of mouth

A

Curve of Spee

78
Q

Lateral curvature of mouth

A

Curve of Wilson

79
Q

Three dimentional combination plane of oral cavity

A

Sphere of Monson

80
Q

Triangular shaped areas between the teeth formed by the bone on one side and the proximal surfaces and their contact area on the other side

A

Interproximal space

81
Q

are the spaces between the teeth that are occulsal (incisal) to the contact areas.

A

Embrasure space

82
Q

Interproximal form includes

A

Gingiva and cervical areas

83
Q

What are the two main physiological functions of Embrasure space

A

Protection and Stimulation

84
Q

(spillways and self cleaning of teeth) Refers to what

A

Embrasure space, protection and stimulation

85
Q

isthe highest point of a curve or greatest convexity or bulge on the facial and lingual surface,

A

Height of contour

86
Q

What four thing make up protection and stimulation in the oral cavity?

A

Embrasure space, height of contour, marginal ridge height, central groove continuity

87
Q

Longest root of a tooth is which tooth

88
Q

Facial and lingual aspects of all teeth are what shape

A

trapezoidal

89
Q

Mesial distal aspects of anterior teeth form what shape

A

Triangular

90
Q

Mesial distal aspects of Maxillary posterior teeth form what shape

A

Trapezoidal

91
Q

Mesial distal aspects of Mandibular posterior teeth form what shape

A

Rhomboidal

92
Q

Circular muscle in the lips, helps with protrusion

A

Orbicularis Oris muscle

93
Q

Principal cheek muscle, compresses cheeks

A

Buccinator muscle

94
Q

Muscle of the chin

95
Q

muscle running from mandible to hyoid bone -speaking and swallowing

A

Mylohoid muscle

96
Q

extends form superior portion of hyoid to mandible

A

Suprahyoid muscle

97
Q

extends form inferior portion of hyoid and extends to sternum and clavical

A

Infrahyoid muscle

98
Q

Three muscles that open the mouth

A

Lateral pterygoid muscle, Suprahyoid muscle, Infrahyoid muscle

99
Q

Three muscles that close the jaw

A

Medial pterygoid muscle, Masseter muscle, Temporalis muscle

100
Q

What two muscles retract the jaw

A

Suprahyoid muscle and Termporalis

101
Q

Muscle to protrude jaw

A

Lateral pterygoid muscle

102
Q

What are the parts to the TMJ ( 4)

A

Articular fossa, Articular eminence, Articular disk and Mandibular Condyle

103
Q

Using the universal notation system, a primary mandibular right central incisor would be identified as

104
Q

Similarities and differences distinguishing tooth #7 from #8 would be included specifically in which trait category

105
Q

Which of the following choices is true regarding proximal tooth contact areas

A

Become more cervical anterior to posterior

106
Q

In tooth #19 has a MDOFL carries, which of the following choices would be most appropriate in naming the 5 restorations

107
Q

when does a cervical embrasure space appear

A

only when the interproximal space is not occupied by the gingiva

Dental Morphology (5 decks)

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