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2A Oral Anatomy Midterms > UNIT III - Biology of Human Dentition > Flashcards

UNIT III - Biology of Human Dentition Flashcards

1
Q

______ - refers to two bony structures, that house the teeth and provide the foundation for the oral cavity.

A

Jaws

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2
Q

______
- paired
- stationary
- upper jaw

A

Maxilla

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3
Q

______
- single
- movable
- lower jaw

A

Mandible

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4
Q

What type of bone is Maxilla?

A

irregular bone

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5
Q

Number of Maxilla

A

2

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6
Q

What bones articulated with Maxilla?

A

frontal
ethmoid
sphenoid
nasal
zygomatic
lacrimal
inferior nasal concha
palatine
vomer

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7
Q

What type of bone is Mandible?

A

irregular bone

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8
Q

Number of Mandible

A

1

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9
Q

Mandible articulates with what bone?

A

temporal

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10
Q

______ - the natural arrangement of teeth in the mouth, including the type, number, and arrangement of teeth in both the upper and lower jaws.

A

DENTITION

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11
Q

CLASSES OF HUMAN TEETH

A

MOLAR
PREMOLAR
CANINE
INCISOR

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12
Q

______ - expresses the type and number of teeth per side

A

DENTAL FORMULA

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13
Q

Number of Teeth (Deciduous Dentition)

A

20

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14
Q

Number of Teeth (Permanent Dentition)

A

32

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15
Q

______ - systematic manner of designating numbers, letters to the type of tooth present whether they belong to the temporary or permanent set

A

DENTAL NOTATION

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16
Q

DENTAL NOTATIONS

A

Palmer Notation
Universal System
2-Digit System
Haderup System

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17
Q

IN WORDS

1.) ______: permanent or deciduous
2.) ______: maxillary or mandibular
3.) ______: right or left
4.) ______: incisor, canine, premolar
or molar

A

Dentition
Arch
Quadrant
Type of tooth

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18
Q

______
- also known as Zsigmondy Notation System
- introduced by ______ of Vienna in ______

A

PALMER NOTATION, Adolph Zsigmondy, 1861

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19
Q

______ - this method uses symbols to designate the quadrant of the tooth and a number/letter that indicates the position of the tooth from the midline

A

PALMER NOTATION

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20
Q

______
- recommended by the American Dental Association in ______.
- this numbering system starts from the rear right upper molar to the rear left upper molar precedes to the left lower molar up to the lower right molar

A

UNIVERSAL SYSTEM, 1968

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21
Q

______
- proposed by Fédération Dentaire Internationale (FDI), adopted by the World Health Organization
- the first digit represents the quadrant of the tooth and the second digit represents the number of the tooth from the midline of the face

A

TWO-DIGIT SYSTEM

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22
Q

______
- devised by ______ of Denmark in ______.
- a variant of the eight-tooth quadrant system in which plus (+) and minus (-) were used to differentiate between upper and lower quadrants and between right and left quadrants.

A

HADERUP SYSTEM, Viktor Haderup, 1891

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23
Q

PRIMARY DENTITION

  • ______ teeth
  • also called ______, ______, ______, or ______
  • ______ to ______
A

20, BABY, DECIDUOUS, MILK, LACTEAL, 6 months, 12 years old

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24
Q

PERMANENT DENTITION

  • ______ teeth
  • ______ to ______
  • consist of ______ and ______ teeth
A

32, 6 years old, 18 years old, succedaneous, accessional

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25
DEVELOPMENT OF TEETH - ______ week of embryonic life - begins with the development of ______ - narrow band of thickened ______
6th, dental lamina, oral epithelium
26
A tooth germ is made up of three parts:
ENAMEL ORGAN DENTAL PAPILLA DENTAL SAC
27
A tooth germ is made up of three parts: ______ - produces the enamel
Enamel organ
28
A tooth germ is made up of three parts: ______ - develops into dentin and pulp
Dental papilla
29
A tooth germ is made up of three parts: ______ - where cementum, periodontal ligament, and bone is derived
Dental sac
30
STAGES OF TOOTH DEVELOPMENT
Initiation (Bud Stage) Proliferation (Cap Stage) Histodifferentiation (Bell Stage) Apposition Intraosseous Into oral cavity
31
STAGES OF TOOTH DEVELOPMENT ______ - 20 tooth buds begin to form - correspond to the position of the future primary dentition
Bud Stage
32
STAGES OF TOOTH DEVELOPMENT ______ - shallow invagination on the deep surface of the bud - consists of 3 components: (1) ______, (2) ______, and (3) ______
Cap Stage, outer enamel epithelium, inner enamel epithelium, stellate reticulum
33
STAGES OF TOOTH DEVELOPMENT ______ - concavity continues to deepen, dentinoenamel junction is already identifiable
Bell Stage
34
STAGES OF TOOTH DEVELOPMENT ______ - begins when enamel and deposition have formed the area which will become the cementoenamel junction - enamel organ develops ______
Root development, Hertwig’s epithelial root sheath (HERS)
35
LIFE CYCLE OF THE TOOTH ______ (______) - affects the presence or absence of tooth buds
Initiation, Bud Stage
36
LIFE CYCLE OF THE TOOTH ______ (______) - influences the general size and proportions of the tooth
Proliferation, Cap Stage
37
LIFE CYCLE OF THE TOOTH ______ (______) - involves the formation of potential and dentin forming cells
Histodifferentiation, Bell Stage
38
LIFE CYCLE OF THE TOOTH ______ (______) - process that determines the shape and size of the tooth
Morphodifferentiation, Bell Stage
39
LIFE CYCLE OF THE TOOTH ______ (______) - completion of the root and regular laying down of enamel and dentin
Apposition, Bell Stage
40
LIFE CYCLE OF THE TOOTH ______ - hardening of tooth tissues by the deposition of inorganic calcium salts
Calcification
41
LIFE CYCLE OF THE TOOTH
Initiation - (Bud Stage) Proliferation - (Cap Stage) Histodifferentiation - (Bell Stage) Morphodifferentiation - (Bell Stage) Apposition - (Bell Stage) Calcification
42
NOLLA'S STAGES OF CALCIFICATION
Stage 0 - absence of crypt Stage 1 - presence of crypt Stage 2 - initial calcification Stage 3 - 1/3 of crown completed Stage 4 - 2/3 of crown completed Stage 5 - crown almost complete Stage 6 - eruptive tooth movement begins (crown formation complete) Stage 7 - 1/3 of root completed Stage 8 - alveolar crest pierced (2/3 root development) Stage 9 - gingival margin pierced (3/4 root development) Stage 10 - apical end of root completed
43
______ - physiologic movement of teeth within and through the jaw
Eruption
44
______ - shedding or loss of a tooth
Exfoliation
45
CHRONOLOGY OF DEVELOPMENT
Beginning of Calcification Crown completion Emergence Root completion
46
______ - first sign of appearance in the oral cavity - between 6th and 30th months of postnatal life
EMERGENCE
47
______ - movement of teeth within and through the bone until it contacts the opposing teeth - begins when the crown is complete and the root starts to form
ERUPTION
48
STAGES OF TOOTH ERUPTION
Pre-eruptive Stage Pre-functional Eruptive Stage Functional Eruptive Stage
49
STAGES OF TOOTH ERUPTION ______ - movement positioning the tooth & its crypt within the growing jaws preparatory to tooth eruption: a) body movement of tooth germ b) growth of the tooth germ c) relative change in the position of associated deciduous and permanent tooth germ
Pre-eruptive Stage
50
STAGES OF TOOTH ERUPTION ______ - begins at the initiation of root formation and ends when the teeth reach occlusal contact
Pre-functional Eruptive Stage
51
STAGES OF TOOTH ERUPTION ______ - begins when the teeth come into occlusion and continues until teeth are lost and characterized by occlusal wear and compensating eruption
Functional Eruptive Stage
52
TYPES OF ERUPTION
Active eruption Passive eruption
53
TYPES OF ERUPTION ______ - the actual movement of the teeth toward the occlusal plane
Active eruption
54
TYPES OF ERUPTION ______ - the separation of primary attachment epithelium from the enamel
Passive eruption
55
SEQUENCE OF ERUPTION PRIMARY DENTITION (IN MONTHS)
MAN A (6-8) MAX A (7-10) MAX B (8-11) MAN B (9-13) MAX D (12-15) MAN D (12-16) MAX C (16-19) MAN C (17-20) MAN E (20-26) MAX E (25-28)
56
SEQUENCE OF ERUPTION PERMANENT DENTITION (IN YEARS)
MAN 6 (6-7) MAX 6 (6-7) MAN 1 (6-7) MAX 1 (7-8) MAN 2 (7-8) MAX 2 (8-10) MAN 3 (8-10) MAX 4 (10-12) MAN 4 (10-12) MAX 5 (10-12) MAN 5 (11-13) MAX 3 (11-13) MAN 7 (11-13) MAX 7 (11-13) MAN 8 (17-20) MAX 8 (17-20)
57
RULES OF "SIX" IN TOOTH DEVELOPMENT ______: beginning of dental development
6 weeks old in utero
58
RULES OF "SIX" IN TOOTH DEVELOPMENT ______: emergence of the first primary tooth
6 months old
59
RULES OF "SIX" IN TOOTH DEVELOPMENT ______: emergence of the first permanent tooth
6 years old
60
RULES OF "SIX/FOUR" IN PRIMARY DENTITION ______: 4 teeth (______ + ______)
6 months, lower central, upper centrals
61
RULES OF "SIX/FOUR" IN PRIMARY DENTITION ______: 8 teeth (______ and ______)
12 months, upper laterals, lower laterals
62
RULES OF "SIX/FOUR" IN PRIMARY DENTITION ______: 12 teeth (______ and ______)
18 months, upper first molars, lower first molars
63
RULES OF "SIX/FOUR" IN PRIMARY DENTITION ______: 16 teeth (______ and ______)
24 months, upper canines, lower canines
64
RULES OF "SIX/FOUR" IN PRIMARY DENTITION ______: 20 teeth (______ and ______)
30 months, lower second molars, upper second molars
65
RULES OF "FOUR" IN PERMANENT DENTITION At ______, 4 first molars have initiated calcification
birth
66
RULES OF "FOUR" IN PERMANENT DENTITION At ______, all crowns have initiated calcification
4 years of age
67
RULES OF "FOUR" IN PERMANENT DENTITION At ______, all crowns are completed
8 years of age
68
RULES OF "FOUR" IN PERMANENT DENTITION At ______, all crowns emerge
12 years of age
69
RULES OF "FOUR" IN PERMANENT DENTITION At ______, roots are completed
16 years of age

2A Oral Anatomy Midterms (2 decks)

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