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23 spring: med surg > Test 4: 64 equine mouth > Flashcards

Test 4: 64 equine mouth Flashcards

1
Q

what are some diff for horse with unilateral nasal discharge

A
  • dental disease with 2nd sinusitis
  • paranasal sinus cyst
  • cancer
  • 1° bacterial sinusistis
  • guttural pouch empyema
  • strangles- retropharyngeal LN abcess (step equi equi)
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2
Q

trephination of a tooth

A

make hole in jaw and push tooth out, needs to be filled after with plaster-of-paris

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3
Q
A
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4
Q

different teeth for different tasks- incisor, canine, premolar, molar

A

heterodonty

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5
Q

baby teeth replaced by 2nd set of teeth

A

diphyodonty

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6
Q

multiple succession of teeth

A

polyphyodonty

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7
Q

teeth implanted in sockets arranged along the margin of the jaw

A

thecodont

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8
Q

the space between teeth

A

diastema

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9
Q

reserve crown for gradual extrusion in herbivores

A

hypsodont

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10
Q

low crowned teeth for soft diets (primate, dog, cat)

A

brachydont

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11
Q

crowns with blunt cusps for crushing- pigs

A

bunodont

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12
Q

deciduous dental formal for horses

A

[I 3/3; C 0/0; PM 3/3; M 0/0] x 2 = 24 teeth
* No deciduous canines, first premolars or molars

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13
Q

permanent dentition formula for horses

A

[I 3/3; C (1)/(1); PM 3(4)/3(4); M 3/3] x 2 = 36 –44 teeth.

  • Up to 11 teeth in each dental arcade
  • Supernumerary teeth may also be present - uncommon
  • Canines are typically absent in mares
  • First premolar teeth - wolf teeth - commonly absent.
  • When present – 1st premolar teeth usually found in maxilla and rarely the mandible.
  • Cheek teeth - collective term for the 6 teeth - premolars 2-4 & molars 1-3 in each arcade
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14
Q

when do all horse teeth come in

A

5 years old

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15
Q

numbering system for upper right

A

100 quadrant

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16
Q

numbering for upper left

A

200

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17
Q

numbering for lower left teeth

A

300 quadrant

18
Q

numbering for teeth in lower right

A

400 quadrant

19
Q

numbering system for deciduous horse teeth

A

500, 600, 700, 800

clockwise looking at horse starting with upper right

20
Q

when should specific teeth for horses come in

A
21
Q

dentin is what

A

pale yellow, calcified tissue

found inside tooth

secondary dentin: laid down over dental (pulp) cavity subocclusally and protects pulp horns and tissue being exposed from tooth wear

22
Q

— is the most dense and brittle substance in the body

A

enamel

23
Q

enamel is made of

A

cyrstalline mineral matrix

24
Q

infundibula

A

during development, enamel invaginates occlusal surface- incisors and 2 invaginations maxillary cheek

25
Q

cement of teeth

A

matrix like bone

covers toot and body of teeth : peripheral cement

partially fills infundibula: incisor teeth and maxillary cheek teeth- infundibular cement

26
Q

— supplies connective tissue, vessels, nerves and lymphatics to teeth

A

pulp

27
Q

how many pulp horns in horses

A

Equine incisors =1 or 2 pulp horns - 2 is more common)
cheek teeth = 5–8, depending on tooth

canine and wolf teeth = single pulp horn

28
Q

what horse teeth have single root

A

incisors
canines
wolf teeth

29
Q

which horse teeth have 2 roots

A

mandibular cheek teeth

30
Q

which horse teeth have 3 roots

A

maxillary cheek teeth

31
Q

eruption cyst occur when

A

tooth is developing and erupting

will resolve when growing stops?

Eruption bumps- both manibles as permanent premolars replace temp (2-5 years old) - regress in 1-2 years

32
Q

maxillary molars and premolar 4 are related to which sinus

A

maxillary

33
Q

Triadan 111/211 teeth project into —- sinus

A

caudal maxillary

34
Q

110/210 teeth are associated with — sunus

A

caudal and rostal maxillary sinus and maxillary sinus septum

35
Q

108/109 teeth associated with — sinus

A

rostral maxillary

36
Q

dental arcade move — in relation to sinuses during life of horse teeth

A

rostally

37
Q
A
38
Q

why use trephination

A

remove tooth from maxillary or conchofrontal sinus

can culture and lavage

39
Q

what are some common complications of horse tooth extractions

A

soft tissue damage (infaorbital, facial nerve)
delayed healing- portion of tooth remains
orosinus or oronasal fistula

40
Q

equine odotoclstic tooth resorption can lead to

A

hypercementosis

treatment: remove all the teeth

23 spring: med surg (60 decks)

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