Rabbit and rodent dentistry by copello Flashcards
Rat like rodents (mouse gerbil and hamster) due not have which group of teeth
Premolars their dental formula is 2(I1/1), (C0/0)(PM0/0), (M3/3)
Pikas are which species
Ochoton spp. order: lagomorphs
Describe the Rabbits dentition
Diphyodont Deciduous and permenanet teeth
Heterodont Diff shapes of I and CT
Elodont Aradicular continuously growing and erupting
Hypsodont long crowned
Duplicidentata Double row of MX I
Rabbits have a zygomatic process from the temporal bone T or F
True
What is the dental formula for rabbits?
28 teeth: ( I( 2/1), C (0/0), Pm (3/2), M (3/3) ) x2
Rodents have two different types of master muscles
Superficial and Deep master muscle they differ in closing actions and rostral caudal movements
Guinea pig is anisognathic with which jaw wider
Mandible
guinea pig dental formula:
2X (1/1 0/0 1/1 3/3)= 20
The guinea pig has elongation of the TMJ in what direction
Rostral caudal direction different than other species
Guinea pig has a tongue that is divided into how many parts
2 parts cranial and caudal and can move independently with a mucosal fold extending from the rostral portion to the mandible
Describe the guinea pigs teeth
Monophyodont
Heterodont
Elodont
Hypsodont
Simplicidentata
Describe the teeth of the chinchilla
Monophyodont
Heterodont
Elodont
Hypsodont
Simplicidentata
The chinchilla have what colored incisors
Orange from stained enamel
Chinchillas are anisognathic with which jaw wider
Mandible formula 2xI1/1,C0/0,P1/1,M3/3
Hampsters teeth are described as.
Monophyodont
Heterodont
Elodont
Anelodont bracydont (molars)
Simplicidentata
Formula 2xI1/1,C0/0,P0/0,M3/3=16
Hamsters are anisoganthic with which jaw wider
Mandible
Describe the rat dentition
Monophyodont
Heterodont
Elodont incisors
Anelodont bracydont molars
Simplicidentata
Formula 2xI1/1,C0/0,P0/0,M3/3=16
Describe the Praire dog dentition
Monophyodont
Heterodont
Elodont Incisors
Anelodont brachydont molars
Simplicidentata
Formula 2xI1/1,C0/0,P2/1,M3/3 =22
Lagomorphs have 4 jaw positions in chewing
Rest incisors in occlusions
Jaw Retraction
Jaw Protrusion
Lateral movements
Propalineal jaw movement
Rostral cuadal and diagonal jaw movements
What is a clinical signs seen often in rabbits with dental disease
Wet fur around the mouth without anorexia
Mandibular incisors in the hamsters are typically ____ than the maxillary incisors
Longer
Describe the position of the mandibular incisor apex in rabbits, guinea pigs chinchillas, prairie dogs and rats
- Rabbits at first cheek tooth
- G Pigs mid mandibular quadrant
- Chinchilla mid mandibular quad
- Prairie dog, rat, degu, hamster chipmunk all behind the mandibular Cheek teeth
When encountering an abscess the best thing for culture and cytology is?
The abscess lining as the purulent material is generally sterile
Acquired dental disease (ADD) results from malocclusion that can be congenital, traumatic Ie. primary dental disease or skeletal malocclusions
ADD forms due to what?
Increased occlusal pressure due to malocclusions of the incisors.
Metabolic bone disease in rabbits what are some of the features?
Outdoor rabbits have lower incidence of MBD
MBD rabbits demonstrate demineralized skull bones
Serum calcium levels are lower in rabbits with severe ADD
Rabbits with ADD and MBD have higher PTH levels than normal
Increasing levels of calcium, with early MBD can reverse changes such as horizontal ridges of the incisors
ADD in rabbits continue through stage explain
Increased presurre on the occlusal surface can lead to apical changes, loss of lamina dura, fracture particularly in the mandible and in end stages the teeth cease erupting and overgrowth of the opposing ensue
Captive prairie dogs often are seen to fracture what teeth?
Maxillary incisors
Pseudo-odontoma is seen most often in which teeth of which species?
Maxillary incisors of squirrel like rodents.
Which of the rodent species commonly get caries?
Prairie dogs
Why is obesity in rabbits noted with dental disease?
They can not eat forage so owners give them concentrates that they can consume and they become obese
It is important to ask the diet when see an obese animal and any history of poor mastication and change in diet.
Trichobezar
Hair ball in the stomach
Which rodents have a cheek pouch
Hamsters
Which is considered a common antibiotic combination for infection in rabbits and rodents
enrofloxacin and penicillin the penicillin must be given parentally
What is a good commercial hand feeding product in rabbits and rodents
Oxbow Critical Care
www.oxbowhay.com
Which periodontal probe is best in rabbits and rodents
Michigan-O probe with williams markings
What is this instrument used for in rabbits and rodents
Crossley incisor luxator
What is this?
Crossley molar luxator for rabbits and rodents bent hypodermic needles can also be used.
The use of calcium hydroxide in abscess packing is recommended by Capello yes or no
no tissue destruction may ensue from the caustic nature
A rabbit is presented with a large swelling on the side of the nose what is your differentials?
Nasolacrimal duct abscess
Tooth abscess
What is the steps in surgical draining of abscesses in Rabbits and rodents
- Tooth extraction if involved.
2 .Incision at the margin of the abscess. - Lavage
- Removal of the lining
