• List the dental formulas of the hamster, rat, gerbil, guinea pig, ferret, and adult rabbit. Pull the front legs caudally. The dental formula of the rabbit is: 2 x ( I 2 / 1 C 0 / 0 P 3 / 2 M 3 / 3). We have included the below rabbit teeth diagram (images and pictures) to help you see how the incisors, premolars, and molars are placed on these animals’ upper and lower jaws. The dental formula of rabbits and hares is: I2/1; C0/0; P3/2; M3/3. Their irregular occlusal surface gives them a rough surface over which fibrous and course food is ground using side-to-side chewing movement (to crush and shear food). However, during chewing (side to side movement), they do come in contact to help grind food by “the movement of the mandible caudally and shifting of the condyloid process into a step of the temporal joint surface.” . The I stands for incisor teeth. As prey species, small mammals mask signs of illness and injury, especially when in an unfamiliar environment. The dental formula of the rabbit is 2 (I 2/1, C 0/0, PM 3/2, M 3/3) =28. The occlusal surface (surface for chewing) of the mandibular teeth curves towards the cheeks (curve buccally) while the one for maxillary teeth curves towards the tongue (curve lingually). Rotate the patient’s head 40˚ away from the table. If you did not know or you assumed that they have 32 teeth like human beings, the truth is that an adult rabbit has 28 teeth forming a natural curve. Before we state their dental formula, we need to elaborate. okvta.org/veterinary-technicians-oath.html. Assessing pain in small mammals can be a difficult task, but it is not impossible. Since the patient will most likely be masking any signs of illness or discomfort, information obtained from the owner about how the animal has been acting in its normal environment will be helpful. In a normal, healthy rabbit, the teeth wear down _____ mm per week. On the other hand, domestic ones which to do not graze have grassy hays forming the bulk of their diet with some amounts of alfalfa-based hays, a few treats of non-leafy vegetables and fruits given to them. The 2 in the front of the formula indicates the left and right side of the mouth. Their deciduous teeth are smaller in size and they erupt while the kit is still in the mother’s womb and they are replaced by permanent adult teeth. The most widely accepted dental formula for rabbits is 2× (I 2/1; C 0/0; P 3/2; M 3/3) = 28 [5 21–23]. okvta.org/veterinary-technicians-oath.html. Pull the front legs caudally. VeterinaryPartner.com/Content.plx?P=A&A=472. Teeth are quite important as it helps us to consume a wider palate of food and also plays a major role in digestion. As with an otoscope cone or bivalve nasal speculum, the endoscope does not allow a thorough evaluation of the cheek teeth in an awake patient. Congenital causes are conditions present at birth. They are anatomically similar, and it is not easy to differentiate them. The occlusal surface of the cheek teeth will appear to match this line in healthy rabbits. (B) Diastema. BOX 1 Positioning Guidelines for Dental Radiography in Rabbits7,8 The ventral lower jaw should be horizontal to the table top. If positioned correctly, both of the patient’s eyes will be horizontal to the table. They also segregate themselves from their cage mates, positioning themselves on opposite ends of their enclosure. It has no canines in jaw. Since the patient will most likely be masking any signs of illness or discomfort, information obtained from the owner about how the animal has been acting in its normal environment will be helpful. The front limbs can remain in natural position; ensure they are out of the x-ray beam. Vertically position ventral margins of the mandible and both eyes. To compensate for this, these species have permanent teeth that grow and erupt continuously, never producing anatomical roots. Rabbits do have a deciduous dentition, but this is of no clinical signiﬁ cance as it is shed within the ﬁ rst few days after birth. Use foam or rolled hand towels to support the neck of the patient and tilt the patient’s nose toward the table top, achieving a ventrodorsal position. References Brown S. Rabbit dental disease. While the jaw is in resting position, upper and lower premolars and molars do not touch since the lower jaw is narrower than the upper one (anisognathism). The roots of anatomically normal mandibular cheek teeth will not extend past this line. 1–4 Instead, there is a space between the incisors and premolars called the diastema (FIGURE 1). Four on their top jaw (maxilla ) and two on their mandible (lower jaw). Powered by WordPress. Masses or swellings palpated along the ventral mandible could be an indication of. The white line extends the height of the tympanic bulla. Dentition pertains to the development of teeth and their arrangement in the mouth.In particular, it is the characteristic arrangement, kind, and number of teeth in a given species at a given age. They also segregate themselves from their cage mates, positioning themselves on opposite ends of their enclosure. www.vivo.colostate.edu/hbooks/pathphys/digestion/pregastric/rabbitpage.html Check Ans A black line (A) extends from the lateral margin of the mandibular incisors to the medial margin of the mandibular ramus on the same side. We will answer that shortly. Dental disease is diagnosed by obtaining a thorough patient history and by performing a physical examination and endoscopic oral examination with the patient under sedation, blood analysis, and radiography.1, A thorough history should be obtained for every patient. Mammalian heterodont dentition is expressed by a ‘dental formula’. Repeat with the patient in lateral position on the opposite side. Demonstration of the use of a bivalve nasal speculum during an oral examination on a rabbit. Place the patient in dorsal recumbency. In these animals, the incisors and molars have different functions, i.e., there is the “cheeks fold in behind the incisors separating the front of the oral cavity from the more caudal section, thereby permitting separate function of the incisors and back teeth.”. Cheek teeth should not extend outside of these reference lines. E. Dental handpiece and cheek guard. Appropriate multimodal analgesia techniques can and should be used in small mammals. All humans have four types of teeth: incisors, canines, premolars, and molars. Incisors called `` peg teeth '' that some rabbit herds may be less active or even completely.! When in an unfamiliar environment the space between the incisors and premolars is called the/a damaged if the rabbit s... 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