Jane's Wiggs Chapter 21 - Small Mammals Flashcards

1
Q

According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,

What is the primary difference in lagomorph dentition versus rodents?

A

presence of a total of four maxillary incisors as compared to two in rodents, as well as additional premolars

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2
Q

According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,

What is the term for the phenomenon seen here?

A

Duplicidentata (2 rows of teeth, with peg teeth behind incisors)

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3
Q

According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,

Which teeth in lagomorphs are aradicular hypsodont?

Which teeth in rodents?

A

All lagomorph teeth are aradicular hypsodont.

in cavimorph (GP’s and chinchilla) rodents, molars are also aradicular hypsodont.

in the rest of rodents, only incisors are aradicular hypsodont

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4
Q

According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,

What is the rabbit dental formula?

A

Rabbits
Permanent teeth
2× (I 2/1, C 0/0, P 3/2, M 2–3/3) = 26–28

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5
Q

According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,

What is the guinea pig and chinchilla dental formula?

A
Guinea pig (Cavidae) 2× (I 1/1, C 0/0, P 1/1, M 3/3) = 20
Chinchillas (Chinchillidae) 2× (I 1/1, C 0/0, P 1/1, M 3/3) = 20
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6
Q

According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,

What is being shown in this image?

A

Rabbit occlusion.

6 maxillary teeth and 5 mandibular. arrangement means that every tooth occludes on 2 others.

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7
Q

According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,

What is the most common dental anomaly ini rodents and rabbits?

A

Malocclusion

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8
Q

According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,

What is the natural angle of a rabbit, chinchilla and guinea pig occlusal table?

A

rabbit and chinchilla are horizontal, guinea pig is 30-40 deg in a V shape (dorsobuccal to ventrolingual) - the opposite of a horse

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9
Q

According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,

when reducing rabbit cheek teeth, to what level should they be reduced?

A

to the gingiva - if the gingiva has advanced with the crown, then another trimming will be necessary after 3 weeks, giving the gingiva time to recede

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10
Q

According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,

What extraction complication has been encountered in the left image but not the right image?

A

no germinal tissue has been extracted. this incisor is likely to grow back. Apical blob of slime in the right image indicates the germinal tissue has been removed

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