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Dental Anatomy > The Basics (Lecture #1) > Flashcards

The Basics (Lecture #1) Flashcards

1
Q

Primary Dentition

A 
Baby Teeth!
Form 16 Weeks in Utero
Usually complete at 3
A一>J Maxillary
K一>T Mandibular
*no premolars (but first and second molar are succeeded by permanent premolars)
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2
Q

Mixed Dentition

A

Both primary and permanent teeth are in the mouth

Lasts 6 years (6-12)

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3
Q

Succedaneous Teeth

A

AKA permanent teeth!

Not all permanent teeth are succedaneous (replace exfoliated primary teeth) NO MOLARS are Succedaneous

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4
Q

Dental Formula for Permanent Dentition

A

I2/2 C 1/1 P 2/2 M 3/3= 16 multiply by 2 = 32

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5
Q

Palmer Numbering System

A

Quadrants: Midline and Maxillary from Mandibular
Starting at Midline #1一>8
Draw the half box __l and the #

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6
Q

FDI Numbering System

A

Quadrants at midline and maxillary fro mandibular
Upper Right: All start with 1 then number 1一>8 central incisor to molar (#3 = #16)
Upper Left: All start with 2 then number 1一>8
Lower Left: All start with 3 then number 1一>8
Lower Right: All start with 4 then number 1一>8

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7
Q

Tissues of the Tooth

A
  1. Enamel - hard tissue
  2. Dentin - hard tissue
  3. Cementum - hard tissue
  4. Pulp - soft tissue
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8
Q

Cingulum

A

A Lingual lobe of an anterior tooth

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9
Q

Triangular Cusps

A

Ridge of tips to the central part of occlusal surfaces

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10
Q

Transverse Ridge

A

When a B and L triangular ridge join

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11
Q

Tubercle

A

Small elevation on some portion of the crown (deviation from the typical form)

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12
Q

Triangular Fossa

A

found on premolars and molars surfaces medial and distal

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13
Q

Developmental Groove

A

shallow groove/line between the primary parts of the crown OR root

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14
Q

Supplemental Groove

A

less distinct than developmental.

Shallow linear depression on the surface of a tooth DOES NOT mark junction of primary parts.

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15
Q

Pits

A

small pinpoint depressions located at the junction of developmental grooves or at the terminals of grooves

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16
Q

Lobes

A

one of the primary sections of function in the development of the crown. Cusps and mamelons are representative of lobes

17
Q

Alveolar Process

A

roots are held in the jaw in this hole

18
Q

Alveolus

A

is the bone of the socket where teeth are held

19
Q

Line angles

A

Junction of 2 surfaces
ANTERIOR TEETH: 6 line angles
POSTERIOR TEETH: 8 line angles

20
Q

Point Angles

A

formed but he junction of 3 surfaces

Anterior AND Posterior have 4

21
Q

Maxillary Central Incisor

A
  1. Widest of ANTERIOR teeth
  2. Facial surface is less sticky outty than the maxillary lateral or canine
  3. Rectangular/Squared appearance
  4. MesioIncisal angle is sharp, distal edge is round
  5. Only anterior tooth that is wider mesiodistally than faciolingually
  6. Contact: Mesial is the incisal 1/3
    Distal junction of incisal 1/3 and middle 1/3
  7. Bisecting line will go through the apex and incisor ridge
  8. curvature of the cervical line is greater on M than D
    9.
22
Q

Mesial View - Shapes

A

Anterior: Triangular
Maxillary: Trapezoidal
Mandibular: Rhomboidal

23
Q

Maxillary Central Incisor Root

A

Apex is blunt

Usually 2-3 mm longer than crown

24
Q

Maxillary Lateral Incisor

A
  • May vary more than any other*
    1. May be missing
    2. May have distolingual (palato-radicular) groove
    3. Distal curve at apex distally
    4. Little rounder on D than central incisor
    5. Larger root length than crown (1.5x length of crown)
    6. Lingual fossa more concave than central incisor
25
Q

Biological Width

A

the area (2.04mm) between the base of the gingival sulcus and the alveolar crest

26
Q

Crown

A

ANATOMICAL crown is the entire area from the CEJ to the incisal/occlusal surface may not be fully visible.
CERVICAL crown: visible portion of the crown

27
Q

Perikymata

A

parallel ridges formed by the cyclic deposition of enamel

28
Q

Periodontal Ligament

A

Collagenous fiber bundles that surround the root of a tooth and connects cementum with alveolar bone

29
Q

Periodontium

A

Inclusive term for supporting and investing structures of a tooth. Mainly gingiva, alveolar bone, cementum, perio ligament. HOLDS TOOTH IN HEAD

Dental Anatomy (2 decks)

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