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Dental > Dental Anatomy and Terminology > Flashcards

Dental Anatomy and Terminology Flashcards

1
Q

Crown

A

Part of tooth visible above gumline

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2
Q

Root

A

The tooth structure below the gumline

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3
Q

Neck

of tooth

A

Cementoenamel Juntion
CEJ

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4
Q

Internal Tooth Structure

A
  1. Dentin
  2. Pulp Chamber
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5
Q

Pulp Cavity

A

Center of the tooth
* forms, feeds, and supplies nerves to dentin
* contains nerves and blood vessels
* root canal below gumline
* pulp chamber above gumline

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6
Q

Dentin

A

Layer under the enamel
* produced continuously by odontoblasts
* softer than enamel, harder than bone

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7
Q

Enamel

A
  • outermost layer of crown
  • no bloody supply
  • no repair possible
  • strongest material in body, made by ameloblasts
  • chips easily
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8
Q

Cementum

A

Collagenous layer covers the dentin of the root
* meets the enamel at CEJ
* made by cementoblasts
* can repair itself

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9
Q

Periodontal Ligament

A
  • Surrounds cementum below gumline
  • Acts as a shock absorber
  • Allows minor tooth movement
  • Attaches to alveolar bone below gum
  • Nerve and blood supply present
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10
Q

Marginal or Free Gingiva

A

Not directly attached

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11
Q

Gingival Sulcus

A

Between free gingiva and tooth
* Dogs: 1-3 mm
* Cats: <1 mm

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12
Q

Attached Gingiva

A

Tougher, Keratinized

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13
Q

Mucogingival Groove / Line

A

Between attached gingiva and alveolar mucosa

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14
Q

Alveolar Mucosa

A
  • Gingiva covering bone
  • Less keratin so more susceptible to damage
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15
Q

Dolichocephalic

Head Type

A

Long

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16
Q

Mesaticephalic

Head Type

17
Q

Brachycephalic

Head Types

18
Q

TMJ

Temporomandibular Joint

A

Hinge joint connecting mandible to maxilla

19
Q

Dental Morphology Types

A
  • Brachydont
  • Hypsodont
20
Q

Brachydont

A
  • Distinct crown and root
  • Small crown
  • Well developed roots
  • No continuous growth
21
Q

Hypsodont

A

High crowned teeth
* short root
* root structure allows for continuous growth

22
Q

Carnassials

Type of Teeth

A

Specially modified for shearing
* upper PM 4 and lower M1

23
Q

Mesial

A

Toward front of mouth (towards I1)

24
Q

Caudal

For Teeth

A

Towards the ear

25
Q

Surfaces of Tooth

A
  1. Labial / Buccal
  2. Lingual / Palatal
  3. Occlusal / Masticatory
  4. Mesial / Distal
26
Q

Labial / Buccal

Tooth Surface

A

Next to lip or cheek

27
Q

Lingual / Palatal

Tooth Surface

A

Next to tongue or palate

28
Q

Occlusal / Masticatory

Tooth Surface

A

Meets opposite tooth during mastication

29
Q

Occlusion

A

Spatial relationship of teeth in the mouth
* how they fit together
* humans = true occlucion (chew on flat surface)
* dogs and cats = sectoral occlusion (chew on side of teeth)

Dental (9 decks)

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