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CSP3 YR5- Restorative > Intro to tooth morphology > Flashcards

Intro to tooth morphology Flashcards

1
Q

Name the arches of the head?

A 
Maxillary arch (top)
Mandibular arch (bottom)
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2
Q

Name each quadrant of the head?

A

Right and left maxillary quadrant

Right and left mandibular quadrant

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3
Q

Give the specific name to each tooth

A

Central and lateral incisors
Canine
1st and 2nd premolar
1st, 2nd and 3rd molar

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4
Q

Describe the shape of the incisors?

A

Like a thin blade

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5
Q

Describe the shape of the canines?

A

Cone-shaped crown

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6
Q

Describe the shape of the premolars and molars?

A

A mountain range with a low valley at the centre

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7
Q

FDI (nomenclature example)

A 
Two-digit system
Split into quadrants
1  | 2
3 | 4
e.g. central incisors will be 11/12
21/22
31/32
41/42
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8
Q

Palmer notation (nomenclature example)

A

Split into quadrants
Each tooth numbered (1-8)
e.g. | (1) number in box
| (1)

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9
Q

What is the basic tooth structure?

A 
Apex
Root
Cement Enamel Junction
Crown
Incisal edge
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10
Q

What is the surface for the anterior teeth?

A

Labial (but appropriate also named buccal)

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11
Q

What is the surface for the posterior teeth?

A

Buccal

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12
Q

What is the biting surface of the incisors and canines called?

A

Incisal

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13
Q

What is the biting surface of the premolars and molars?

A

Occlusal

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14
Q

Explain how a tooth can be divided into 3rds for surface descritpion?

A

For purposes of description, the crowns and roots of teeth have been divided into thirds, and junctions of the crown surfaces are described as line angles or point angels

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15
Q

What is the cusp? (tooth surfaces)

A

The elevation of the
crown portion of a tooth
making up a divisional part
of the occlusal surface

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16
Q

What is the ridge? (tooth surfaces)

A

The linear elevation on
the surface of a tooth and
is named according to its
location

17
Q

What is the Marginal Ridge? (tooth surfaces)

A

The rounded borders of the enamels that form the proximal margins of the occlusal surfaces of premolars and molars and the proximal margins of the lingual surfaces of the anterior teeth

18
Q

What is the Tubercle? (tooth surfaces)

A 
A smaller elevation
on some portion of the crown
produced by an extra
formation of enamel (deviations
form the typical form)
19
Q

What is the Cingulum? (tooth surfaces)

A

Lingual lobe of an anterior tooth. It makes up the bulk of the cervical third of the lingual/palatal surfaces

20
Q

What is the Lobe? (tooth surfaces)

A

One of the primary
sections of formation in the
development of the crown

21
Q

What is the Mamelon? (tooth surfaces)

A

Any one of the three
rounded protuberances found
on the incisal ridges of newly
erupted incisor teeth

22
Q

What are the triangular ridges? (tooth surfaces)

A

Descend from the tips of the cusp of posterior teeth
towards the central part of the occlusal surfaces. They are named after the
cusps to which they belong
(behind the front teeth)

23
Q

What is the transverse ridge? (tooth surfaces)

A

The union of two triangular ridges crossing

transversely the surface of a posterior tooth

24
Q

What is the oblique ridge? (tooth surfaces)

A

a ridge crossing obliquely the occlusal surfaces of maxillary
molars and formed by the union of the triangular ridge of the distobuccal (DB) cusp and the distal cusp ridge of the mesiopalatal (MP) cusp

25
Q

What is the Fossa? (tooth surfaces)

A

Irregular depression or concavity

26
Q

What is the lingual fossa? (tooth surfaces)

A

Lingual surfaces of

incisors

27
Q

What is the central fossae? (tooth surfaces)

A

Occlusal surface of
molars. Formed by the convergence of ridges termination at a central point in the bottom of the depression where there is a
junction of grooves

28
Q

What is the triangular fossae? (tooth surfaces)

A

Found on occlusal
surfaces of posterior teeth mesial or distal to marginal ridges. Sometimes on palatal
surfaces of maxillary incisors at the edge of the lingual fossae where the marginal ridge (MR) and the cingulum (CI) meet

29
Q

What is the sulcus? (tooth surfaces)

A

The long depression or valley in the surface of a tooth between ridges and
cusps, the inclines of which meet at an angle. A sulcus has a developmental groove at the junction of its inclines

30
Q

What is the developmental groove? (tooth surfaces)

A

Shallow groove or line between the primary parts of the crown or root

31
Q

What is the supplemental groove? (tooth surfaces)

A

Shallow linear
depression on the surface of a tooth (Supplemental to a developmental groove
and does not mark the junction of primary
parts)

32
Q

What is a pit? (tooth surfaces)

A

Small pinpoint depression located at the junction of developmental grooves or
at terminals of those grooves.

CSP3 YR5- Restorative (44 decks)

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