Equine Dentistry Flashcards

1
Q

why do equines need routine dental care?

A

current management practices can contribute to decreased or uneven wear of teeth
jaw conformations can lead to uneven wear
untreated dental problems lead to soft tissue damage, trouble eating, infections

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2
Q

what are wolf teeth?

A

first premolar
small rudimentary

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3
Q

what are cheek teeth?

A

premolars 2-4 and molar 1-3

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4
Q

which teeth usually require the most dental attention?

A

cheek teeth

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5
Q

what are the ways to estimate age by teeth?

A

eruption schedule
angle of incidence
occlusal surface
shape of surface of incisors
galvayne’s groove

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6
Q

what teeth do horses get in their first week?

A

first incisor
three premolars

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7
Q

are there deciduous molars?

A

no

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8
Q

when do molars come in?

A

1st at one year
2nd at two years
3rd by four years

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9
Q

what happens to the occlusal surface as a result of wear?

A

cup/infundibulum gets smaller and then disappears
dental star/pulp cavity appears at 8, goes from line to circle

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10
Q

when does galvayne’s groove start?

A

10 years

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11
Q

at what rate do horse hypsodont teeth erupt?

A

3-4 mm per year

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12
Q

what does it mean that horses have an anisognathic jaw conformation?

A

maxilla is wider than mandible

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13
Q

where do sharp enamel points form?

A

buccal of upper teeth
lingual of lower teeth

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14
Q

where do rostral/caudal hooks form?

A

front of second premolar
back of the third molar

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15
Q

what does a step mouth usually result from?

A

a lost tooth

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16
Q

what is a diastema?

A

space between teeth

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17
Q

why are diastemas a problem?

A

food impacts between teeth
damage gingiva and promote bacterial growth
periodontal disease
can cause fistula and sinus infection

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18
Q

what is equine odontoclastic tooth resorption and hypercementosis?

A

resorption and hypercemantosis

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19
Q

what is unique about EOTRH?

A

hypercementosis

20
Q

which horses get EOTRH?

A

more than 15 years old

21
Q

what is seen on radiographs with EOTRH?

A

resorption of reserve crown and root
loss of periodontal ligament space
disruption of alveolar and regional cancellous bone
osteomyelitis
tooth fracture

22
Q

what are the major concerns of miniature horses?

A

overcrowded teeth
impactions
maleruptions
congenital defects

23
Q

what do you need to do a dental exam?

A

sedation
speculum
flush mouth
light source
documentation

24
Q

what is a routine float?

A

process of rasping or filing a horse’s teeth

25
should the occlusal surface be made smooth during a float?
no
26
what happens with root breaks due to wolf tooth extraction?
erupt on own or fuse to alveolus
27
what is excessive bleeding due to wolf tooth extraction complication due to?
punctured palatine artery
28
what imaging is available for dentistry?
radiographs oroscopy computed tomography magnetic resonance imaging nuclear scintigraphy
29
what are signs of dental disease on radiographs?
bone lysis bone production displacement of normal structures abnormal air pockets fluid lines in sinus
30
what is the wolf tooth?
remnant of first premolar
31
what are the cheek teeth used for?
grinding self sharpening
32
which teeth usually require the most dentistry attention?
cheek teeth
33
how many teeth do horses have?
minimum 36 (no canines or wolf teeth) maximum 44
34
what deciduous teeth erupt by 8 months of age?
first week: first incisor and three premolars two months: second incisor eight months: third incisor
35
when are all permanent teeth erupted?
5 years
36
when do horses begin to have permanent incisors?
2.5 years inside to outside
37
when do wolf teeth erupt?
6 months- 1 year
38
when do the permanent premolars erupt?
second: 2.5 years third: 3 years fourth: 4 years
39
what happens with the dental star with age?
pulp cavity appears at age 8 goes from line to circle with age
40
when does galvagne's groove start to disappear?
between 20 and 25 gone by 30
41
what is a wave mouth?
adjacent teeth with unequal heights results from incomplete occlusal contact when horse grinds its food
42
what can be done for mild cases of EOTRH?
biannual monitoring and radiographs staged extraction
43
why is aging miniature horses by their teeth unreliable?
maleruptions
44
what is a routine float?
process of rasping or filing a horse's teeth
45
why should you not use #6 as a fulcrum when elevating the mucosa of the wolf teeth in an extraction?
more likely to break off root if do
46
which horses should you refer to someone in the american veterinary dental college?
difficult extractions diastema widening tooth restoration
47
what should you do to a diastema?
widen it: improves periodontal disease