Jane's Wiggs Chapter 21 - Small Mammals Flashcards
According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,
What is the primary difference in lagomorph dentition versus rodents?
presence of a total of four maxillary incisors as compared to two in rodents, as well as additional premolars
According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,
What is the term for the phenomenon seen here?
Duplicidentata (2 rows of teeth, with peg teeth behind incisors)
According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,
Which teeth in lagomorphs are aradicular hypsodont?
Which teeth in rodents?
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
According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,
What is the rabbit dental formula?
Rabbits
Permanent teeth
2× (I 2/1, C 0/0, P 3/2, M 2–3/3) = 26–28
According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,
What is the guinea pig and chinchilla dental formula?
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
According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,
What is being shown in this image?
Rabbit occlusion.
6 maxillary teeth and 5 mandibular. arrangement means that every tooth occludes on 2 others.
According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,
What is the most common dental anomaly ini rodents and rabbits?
Malocclusion
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?
rabbit and chinchilla are horizontal, guinea pig is 30-40 deg in a V shape (dorsobuccal to ventrolingual) - the opposite of a horse
According to Wiggs Chapter 21, Small Mammal Oral and Dental diseases,
when reducing rabbit cheek teeth, to what level should they be reduced?
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
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?
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
