Dental Anatomy: Intro Flashcards

1
Q

When do the primary teeth start erupting? Until when do they remain?

A

6 + or - 2 months Age 6

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2
Q

When is the mixed dentition period?

A

Age 6-12/13

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3
Q

Permanent teeth that replace deciduous teeth are called

A

Successional Teeth

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4
Q

Permanent teeth that don’t replace anything are called

A

Accessional Teeth

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5
Q

Which teeth are the accessional teeth?

A

Permanent molars

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6
Q

Most mammals – humans included – typically develop their jaws to two sets of teeth. This term literally means “two generations of teeth”

A

Diphyodont

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7
Q

Most mammals, humans included, develop distinctive classes of teeth that are regionally specialized. The term for this is…

A

Heterodont.

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8
Q

The is the term for the absence of teeth This is the term for one or a few missing teeth

A

Anodontia Partial anodontia

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9
Q

These teeth function in cutting food, articulating speech, appearance and support of the lips. Can’t say th, f, s without them. There are how many uppers and how many lowers?

A

Incisors 4 uppers and 4 lowers

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10
Q

These teeth function along with incisors for support of the lips, cutting or shearing of food, and guideposts in occlusion. Also known as the cornerstones of the dental arch. They help guide our bite (can’t move to far to the right or left) There are how many upper and lower?

A

Canines 2 upper 2 lower

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11
Q

These are also known as the bicuspids. They are designated as first or second bicuspid by their position in the dental arch.

A

Premolars

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12
Q

How many premolars/bicuspids are there in the upper/lower arch?

A

4 in upper 4 in lower (8 total)

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13
Q

What are the functions of the premolars?

A

Mastication of food and maintaining vertical dimension of the face.

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14
Q

How many molars are there in the upper and lower arch?

A

6 in upper, 6 in lower, classified as first, second, or third by position in dental arch

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15
Q

What are the functions of the molars?

A

Chewing and grinding of food and maintaining the vertical dimension in the face

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16
Q

Review mammalian dental formula sheet. Note that it’s a per side formula. multiply total by 2.

A

DON’T LET YOUR DREAMS BE DREAMS.

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17
Q

Are pre-molars accessional or successional? What do they replace?

A

Succesional, Primary Molars

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18
Q

Which is a larger arch form? Maxillary or mandible?

A

Maxillary (just think of your mouth)

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19
Q

What determines the size of the arch? When multiple teeth are misplaced, what happens to the arch?

A

Underlying basal bone Irregularities or asymmetries

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20
Q

This is the term for vertical overlap of the incisors

A

Overbite (corrected with braces)

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21
Q

This is the term of horizontal overlap of the incisors

A

Overjet (corrected with braces)

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22
Q

This is a curve of the arch that follows an upwards curve in lateral view

A

Curve of Spee

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23
Q

This is curvature of the mandibular teeth that is concave and that of maxillary teeth is convex in frontal (because mandibular teeth are tipped towards the tongue) Also associated with frontal view. Lingual cusp sits towards the tongue.

A

Cusp of Wilson

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24
Q

Review universal numbering system (primarily used by most general dentists in the United States)

A

DON’T LET YOUR DREAMS BE DREAMS.

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25
This numbering system is used widely by dentists internationally to associate information to a specific tooth
FDI (Federation Dentaire International) World Dental Federation Notation
26
This numbering system is used by some orthodontists, pedodontists, and oral surgeons
Zsigmondy/Palmer Notation
27
This is the part of the crown that is covered with enamel
Anatomical Crown
28
This is part of the crown that is the portion of the anatomical crown that is visible clinically. It is what you see when you look in the mouth.
Clinical Crown
29
This is the portion of the root that is covered with cementum
Anatomical Root
30
This is the portion of the root that is part of the anatomical root that is actually embedded in the jaw. In a patient with advanced bone loss, the clinical root may be reduced in size.
Clinical Root
31
This is the line that separates the anatomical crown from the anatomical root
Cervical line
32
The cervical line is the junction between which two tissues? Therefore, it is also called the... Also called the cervix (neck) of the tooth
Enamel and Cementum cemento-enamel junction (CEJ)
33
This is the space of the tooth which contains the pulp or 'nerve' of the tooth
Pulp cavity
34
The pulp cavity has two portions, one for the crown and one for the root. What are they?
Coronal and radicular (usually called root canal)
35
The pulp cavity enters the tooth from the bottom through the ____ of the root
Apex of the root
36
This dental tissue is the protective outer surface of the anatomic crown. It is 96% mineral and is the hardest tissue in the body
Enamel
37
This dental tissue is located in both the crown and root, makes of the bulk of the tooth beneath the enamel and cementum.
Dentin
38
Dentin lines what part of the tooth?
Pulp Cavity
39
This dental tissue is the central, innermost portion of the tooth. It has formative, sensory nutritive and reparative functions during the life of the tooth
Pulp
40
This dental tissue covers the surface of the anatomic root. It facilitates anchorage of the tooth in its bony socket (the alveolus) It is really similar to what other body tissue?
Cementum Bone
41
An imaginary line that bisects the dental arch at the center.
Midline
42
Toward the center midline of the dental arch Away from the center midline The surface of a tooth that is toward another tooth in the arch
Mesial Distal Proximal (interproximal)
43
Toward the cheeks or lips
Facial
44
Facial surface of anterior teeth (toward the lips)
Labial
45
Facial surface of posterior teeth (toward the cheeks)
buccal
46
Toward the tongue
Lingual
47
The biting surface; the surface that articulates with an antagonist tooth in an opposing arch
Occlusal
48
The cutting edge of anterior teeth (note: posterior teeth don't have incisal surfaces, they just grind. Use occlusal for the surface)
Incisal
49
Contact
A point or area where one tooth is in contact (touching) its neighbor
50
Review location on a tooth slide
JUST DO IT!
51
A point or peak on the occlusal surface of molar and premolar teeth - an elevation on the surface of the crown of a tooth making up a divisional part of the occlusal surface
Cusp
52
A bulge or elevation on the lingual surface of incisors or canines. It makes up the bulk of the cervical third of the lingual surface (booty of the tooth). Its convexity mesiodistally resembles a girdle encircling the lingual surface at the cervical
Cingulum (only on the anterior teeth)
53
One of the primary centers of formation on the development of the crown of the tooth. Cusps and mamelons are representative of them
Lobes
54
Lobes seen on anterior teeth, only the incisors. Any of three rounded protuberances.
Mamelons
55
Rounded borders of enamel that form the margins of the surfaces of premolars and molars, mesially and distally, and the mesial and distal margins of the incisors and canines lingually
Marginal Ridge
56
Ridges that descend from the tips of the cusps molars and premolars toward the central groove of the occlusal surface
Triangular Ridges
57
These ridges are created when a buccal and lingual triangular ridge join. It is the union of two triangular ridges crossing transversely across the surface of a posterior tooth.
Transverse ridges
58
These ridges are seen on maxillary molars and are a companion feature to the distal oblique groove Also known as the elevation in the enamel that runs obliquely across the occlusal surface of a maxillary molar
Oblique Ridges
59
This fossae is found on the occlusal surface of a molar. They are formed by the converging of ridges terminating at a central point in the bottom of a depression where there is a junction of developmental grooves.
Central Fossa
60
This fossa is the sulcus on the lingual surface of incisors
Lingual Fossa
61
This fossa is found on molars and premolars on the occlusal surfaces or distal to marginal ridges
Triangula fossae
62
This is a small pinpoint depression located at the junction of developmental grooves or at the terminals of these groups. A pit is often the site of the onset of dental decay.
Pit Note: there are buccal or central pits
63
This groove/fissues is a sharply definted, narrow or linear depression formed during tooth development and usually separating lobes or major portions of a tooth. Major grooves are named according to their location
Developmental groove
64
A groove/fissure that is a shallow linear depression but is usually less distinct and is more variable than a developmental groove and does not mark the junction of primary parts of a tooth.
Supplemental groove
65
When two teeth in the same arch are in contact, their curvatures adjacent to the contact areas form spillway spaces called....
Embrasures
66
Review the types of embrasures
Facial (buccal/labial)\* Occlusal or incisal Lingual\* Gingival (interproximal space