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Surgery > E2- Dental Dz 1 > Flashcards

E2- Dental Dz 1 Flashcards

1
Q

___% of dogs and cats over 3 years of age will have some oral pathology that should be addressed

A

80-85%

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2
Q

Retained deciduous teeth caused by a failure of

A

the primary tooth’s root to undergo resoption

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3
Q

Retained deciduous teeth most frequently seen in?

A

toy breeds, many breeds, cats

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4
Q

What teeth are most commonly retained?

A

canine and incisiors

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5
Q

On the maxilla, adult canine come in ____ to deciduous canines. While mandibular adult canines come in ____ to deciduous canines.

A

rostral

lingual

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6
Q

What is recommened tx for retained teeth?

A

careful extractoin to avoid damage to adult teeth

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7
Q

Permanent teeth erupt ____ to the deciduous teeth- except the maxillary canines

A

lingual/palatal

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8
Q

Decreased free space may predispose to ____

A

periodontal dz

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9
Q

Supernumerary teeth

commonly seen where?

A

seen occasionally

more common in maxilla

most often premolars and/or incisors

may cause no problem, may interfere with occlusion, overcrowding

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10
Q

what is shown in this image?

A

supernumerary tooth 107

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11
Q

Supernumerary roots

common where?

A

PM3- esp maxila most common

tooth has extra cusp

extra root of normal size

primary differential

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12
Q

____ = the joining of 2 teeth

A

fusion

one crown, 2 roots

will have less than normal number of teeth in arch

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13
Q

_____= incomplete splitting into 2 teeth

A

gemination

2 crowns, one root

sometimes called twinning

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14
Q

Anodontia/Oligodontia/Hypodontia

A

missing teeth

genetic defect- never developed

impaction, slow eruption, fell out, trauma, extracted

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15
Q

If the deciduous tooth is congenitally missing, the adult tooth will ____

A

be missing as well

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16
Q

Anodontia/Oligodontia breeds

A

brachycephalics, mexican hairless, chinese crested

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17
Q

Truly missing teeth are usually what 2 teeth?

A

premolars, incisors

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18
Q

What type of luxation is this?

A

intrusive luxation

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19
Q

A normal occlusion is also called a ____ bite

A

scissor bite

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20
Q
A

extra premolar

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21
Q

what abnormality?

A

periodontal dz- bone loss

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22
Q

Decribe the scissor bite:

maxillary incisors ____ to mandibular

mandibular incisors contact what part of maxillary incisors?

mandubular canine is b/t?

A

rostral

cingulum

mandibular canine b/t lateral incisor and maxillary canine

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23
Q

what is this? describe it

A

cingulum

the shelf on the palatal surface of the maxillary incisors where the mandibular incisors rest

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24
Q

Malocclusion class 1

A

neutroclusion

jaw length normal

malpositioned teeth

base narrow canines

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25
Q

Malocclusion class 2

A

mandibular distocclusion

mandible short

parrot mouth, overshot

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26
Q

Malocclusion class 3

A

mandiular mesiocclusion

mandible too long

undershot

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27
Q

Malocclusion class 4

A

asymmetrical skeletal malocclusion

“wry” bite

maxilla fissures close on one side and restrict growth on one side

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28
Q

Most common Class 1 malocclusion in dogs?

A
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29
Q

Lance tooth

describe it

breeds?

cause?

A

rostrally displaced adult canine

most common in sheltie- genetic also schnauzer, greyhound, fox terrier

may be caused by retained deciduous teeth

30
Q

Rostral (anterior) cross bite

A

one or more of the maxillary incisors are displaced toward palate

class 1 malocclusion

trauma or inherited

31
Q

Caudal (Posterior) cross bite

A

maxillary premolars are lingual to mandubular premolars or molars

class 1 malocclusion

probably inheritied

32
Q
A

4th premolar is missing

manduble is a little longer- class 3

33
Q

what class?

A

class 2 malocclusion

mandibular distocclusion

34
Q

what class?

A

class 3 malocclusion

mandibular mesiocclusion

35
Q

What type of bite?

A

level bite

incisor crowns meet

type of prognathism

class 3 malocclusion

leads to abnormal wear on incisors- attrition

36
Q

What class is this?

A

class 4 malocclusion

asymmetrical skeletal malocclusion

“wry” mouth

37
Q

Interceptive orthodontics

A

removal of deciduous teeth (primary) to avoid or correct problem

38
Q

what abnormalitiy?

A

base narrow canines

39
Q

How to fix base narrow canines?

A

bonded acrylic material

build it up to make incline plane with maxi temp- non-exothermic

40
Q

Why is an alternate technique commonly used from incline plane with maxi temp for base narrow canines?

A
41
Q

T/F: impacted teeth are common in the dog and cat

A

false- uncommon

42
Q

Suggested causes of impacted teeth?

A

lack of space in the dental arch or mal-alignment of the tooth bud

43
Q

how to dx impacted teeth?

A

dental rads

44
Q

Impacted teeth can result in ____ or ____ formation and should be extracted in most cases

A

abscess or cyst

45
Q

A vital impacted tooth may potentially erupt into its normal position if the overlying ___ and ____ are removed

A

gingiva and alveolar bone

46
Q

Swelling with blue hue

A

dentigerous cyst

47
Q

Name and describe the lesion

A

Dentigerous cyst

fluid filled cyst surrounding the crown of an unerupted tooth resulting from persistence of portions the enamel forming epithelium

CS: missing teeth, swelling (blue hue), displacement of teeth, pain

48
Q

Dentigerou cyst formation due to an un-erupted canine. Tx

A

extract impacted tooth

remove lining of cyst

extract compromised adjacent teeth

bone graft

49
Q

Name the lesion

A

enamel hypoplasia/hypocalcification

50
Q

enamel hypoplasia/hypocalcification due to?

A

damage to ameloblasts during enamel development or exposure of enamel to corrosive material

due to high fevers, distemper, periapical inflammation or trauma of the permanent tooth bud or endocrine dysfunction

51
Q

Exposed dentin is prone to?

A

staining and premature wearing

52
Q

name abnormality

A

enamel hypoplasia

53
Q

Treatment options for enamel hypoplasia

A

conservative management

extraction

composite restoration

crown

frequent brushing, dentals, extractions as needed

54
Q

Attrition

A

pathologic wearing due to contact with opposing tooth

malocclusion

tx: orthodontic correction, crown reduction, extraction

55
Q

Abrasion

A

caused by abnormal contact with crown surface by foreign object- tenis ball, cages, rocks (frequent chewing)

tx: remove offending objects, monitor for pulp exposure and crown fractures

56
Q

this dog chews on rocks and stick. name the abnormality

A

abrasion

57
Q

Must establish if there is ____ exposure. Assess with ____

A

endodontic exposure

dental explorer- if it enters pulp chamber, extract or do root canal

58
Q

Periapical granuloma/abscess

CS

A

can result from endodontic, periodontal lesions or both

CS: nasal dz, maxillary/mandibular abscesses, intraoral fistula, retrobulbar dz, pathologic fracture

59
Q

abnormality?

A

abscess of maxillary carnassial tooth

60
Q

Palpate the ____ when extracting, tells us how far we will have to go

A

juga

61
Q

The first arrow is pointing at?

A

draining tract associated with the teeth is called a Parulis

62
Q

what lesion?

A

apical abscess

63
Q
A

Parulis

64
Q

What is going on at the green lines?

A

weakening to the bone, can cause a fracture when extracting the tooth

65
Q

Retrobulbar dz- the roots of what teeth are of concern?

A

maxillary molars 1 and 2 in the zygomatic arch

apical dz can cause retrobulbar signs

66
Q

name the abnormality

A

gingival hyperplasia

67
Q

Etiology of gingival hyperplasia

breeds?

A

focal- due to periodontal disease

generalized- often seen in boxers and great danes

drugs: cyclosporine, Ca channel blockers, anticonvulsants

68
Q

Treatment of gingival hyperplasia

A

remove excessive tissue to return sulcus depth to normal

may recur

69
Q

After surgical correction of gingival hyperplasia

A

chlorhexidine rinses BID for 2 weeks

recheck in 2 weeks

home care

70
Q

How much tissue do we want to remove for gingival hyperplasia?

A

remove enough tissue so you leave about 1-3mm

71
Q

What tool is preferred by most for gingiva removal?

A

radiosurgery

common problem is heat too high, move too slow

Surgery (15 decks)

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