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NAVEDTRA 14295B: HM Manual > Chapter 7 - Oral Anatomy > Flashcards

Chapter 7 - Oral Anatomy Flashcards

1
Q

When teeth are in what phase (tooth formation) they go through three developmental periods called categories: growth, calcification, and eruption? (Pages7-1)

A

Odontogenesis

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2
Q

What describes the tooth as it breaks through the gingival tissue? (Pages 7-1)

A

Emergence

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3
Q

Tooth buds for the permanent teeth form between the 17th- week of fetal life through the age of how many years? (Pages7-1)

A

5

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4
Q

What refers to depositing of the matrix for the hard dental structures? (Page 7-2)

A

Apposition

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5
Q

What is the process by which organic tissue (the matrix formed during apposition) becomes hardened by a deposit of calcium or any mineral salts? (Pages 7-2)

A

Calcification

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6
Q

For permanent teeth, it takes about how many years from crown completion to the time the tooth emerges into the mouth? (Pages 7-2)

A

3

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7
Q

When primary teeth prepare to fall out and make way for the eruption of permanent teeth, they go through a process called what? (Pages 7-4)

A

Exfoliation

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8
Q

What is the study of anatomy including the minute structure, composition, and functions of tissues? (Pages 7-4)

A

Histology

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9
Q

The root of a tooth is covered by cementum and embedded in a thin layer of compact bone that forms the tooth socket; this is called what? (Pages 7-4)

A

Alveolar bone

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10
Q

When teeth have more than one root, the region where the roots separate is called what? (Pages 7-4)

A

Furcation

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11
Q

If a tooth has how many or more roots, it is said to be multirooted? (Pages 7-4)

A

Four

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12
Q

What is a slight indentation that encircles the tooth and marks the junction of the anatomical crown with the root? (Pages 7-5)

A

Cervix

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13
Q

What is the calcified substance that covers the entire anatomic crown of the tooth and protects the dentin? (Pages 7-5)

A

Enamel

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14
Q

What is the hardest tissue in the human body? (Page 7-5)

A

Enamel

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15
Q

Enamel can endure crushing pressure of approximately how many pounds per square inch? (page 7-6)

A

100,000

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16
Q

What constitutes the largest portion of the tooth? (Page 7-6)

A

Dentin

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17
Q

What is the bonelike tissue that covers the roots of the teeth in a thin layer? (Page 7-6)

A

Cementum

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18
Q

What is the soft tissue inside the tooth developed from the connective tissue of the dental papilla? (Page 7-6)

A

Dental pulp

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19
Q

The tissues that surround and support the teeth are collectively called what? (Pages7-7)

A

Periodontium

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20
Q

What is that bony portion of the maxilla and mandible where the teeth are embedded and tooth roots are supported? (Pages 7-7)

A

Alveolar process

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21
Q

What is dense in nature, provides strength and protection, and act as the attachment for a skeletal muscles? (Pages 7-7)

A

Cortical plate

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22
Q

What is a thin layer of compact bone; a specialized continuation of the cortical plate that forms the tooth socket? (Pages7-8)

A

Alveolar bone proper

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23
Q

What is a thin layer, fibrous ligament that connects the tooth to the bony socket? (pages7-8)

A

Periodontal ligament

24
Q

What is comprised of the tissue that covers the hard palate and the gingival? (Page 7-8)

A

Masticatory mucosa

25
Q

What aids in the support of the teeth, and protects the alveolar process and periodontal ligament from the bacterial invasion? (page 7-9)

A

Gingiva

26
Q

What is the mucous membrane on the tongue in the form of lingual papillae, which are structures associated with sensations of taste? (Pages 7-10)

A

Specialized mucosa

27
Q

The teeth of the upper arch are called what teeth ?( Pages7-10)

A

Maxillary

28
Q

The teeth in an arch are composed of 6 anteriors (cuspid to cuspid) and how many posterior> (Page 7-10)

A

10

29
Q

A human receives two sets of teeth during a lifetime. The first set consists of 20 teeth referred to as deciduous or primary (baby teeth). The second (permanent) set usually consists of how many teeth? (Page 7-11)

A

32

30
Q

What teeth are those located in the front of the mouth, the incisors, and the cuspids? (page 7-11)

A

Anterior

31
Q

What teeth are those located in the back of the mouth- the bicuspids and molars? (page 7-11)

A

Posterior

32
Q

The human permanent dentition is divided into how many classes of teeth based on appearance and function or position? (page 7-12)

A

Four

33
Q

What has a single cusp instead edge and is designed for cutting and tearing? (page 7-13)

A

Cuspid

34
Q

What have two cusps used for cutting and tearing, and an occlusal surface that is wider to crush food? (page 7-13)

A

Bicuspids

35
Q

What has four or five cusps, is shorter and more blunt in shape than the teeth, and provides a broad surface for grinding and chewing solid masses of food? (Page 7-13)

A

Molar

36
Q

What method employs numbers with each tooth designated by a separate number from 1 to 32? (page 7-13)

A

Universal Numbering System

37
Q

What is the surface of a tooth that “faces” toward the lips or cheeks? (page 7-14)

A

Facial

38
Q

What is the proximal surface closest to the midline or middle of the arch? (page 7-14)

A

Mesial

39
Q

What is the proximal surface oriented away from the midline of the arch? (page 7-14)

A

Distal

40
Q

What is the surface of an anterior or posterior tooth that faces toward the tongue? (page 7-14)

A

Lingual

41
Q

What surface is the broad chewing surface found on posterior teeth (bicuspids and molars)? (page 7-15)

A

Occlusal

42
Q

Who was a dentist who developed a classification of normal and abnormal ways teeth meet into centric occlusion? (page 7-18)

A

Edward Angle

43
Q

What is the study of the form and shape of teeth? (page 7-18)

A

Tooth morphology

44
Q

In about what percent of maxillary first bicuspids, the root is divided in the apical third? (Page 7-24)

A

50

45
Q

The first molars are also known as what molars? (page 7-26)

A

6-year

46
Q

The second molars are often called what molars?(page 7-27)

A

12-year

47
Q

What molars are called “wisdom teeth” because they erupt when the young adult is passing into adulthood? (page 7-27)

A

Third

48
Q

What is the first permanent tooth to erupt? (page 7-28)

A

Mandibular first molar

49
Q

What is a pointed or rounded elevation of enamel found on cuspids and on the chewing surfaces of bicuspids and molars? (Page 7-30)

A

Cusp

50
Q

What is a convex mount of enamel localized to the cervical one-third of the crown? (page 7-30)

A

Cingulum

51
Q

What is a linear fault that sometimes occurs in a developmental groove by incomplete or imperfect joining of the lobes? (page 7-30)

A

Fissure

52
Q

What is a centrally located depression found on the occlusal surface of molars and mandibular second bicuspids? (page 7-32)

A

Central fossa

53
Q

What is a fissure betwwen the cusps on the crown of the tooth? (page 7-31)

A

Developmental Groove

54
Q

What are small, rounded projections of enamel from the incisal edges of newly erupted anterior teeth? (page 7-32)

A

Mamelons

55
Q

What is an elongated valley or depression in the surface of a tooth formed by the inclines of adjacent cusps or ridges? (page 7-34)

A

Sulcus

NAVEDTRA 14295B: HM Manual (25 decks)

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