Abnormality of Incisor Teeth in Rabbits
Incisor Malocclusion and Overgrowth in Rabbits
A rabbit's teeth usually grow throughout its life, and a high fiber diet, with foods that warrant heavy chewing, are required for proper alignment and functioning, as the coarse foods help to keep the teeth at a manageable length. Occlusion, the fitting together of the teeth of the upper and lower jaws when the mouth is closed, can be hampered by overgrowth of one or more of the teeth, a condition referred to as malocclusion (where the prefix mal- joined with -occlusion refers to the ill-fitting shape of the teeth).
If elongation of the cheek teeth occurs, complete closure of the mouth cannot be achieved, and the upper incisor teeth are prevented from coming into contact with the lower incisors, leading to excessive growth of the incisors. The incisor teeth can grow as much as one mm a day if left unopposed by the opposite jaw – the meeting/occlusion of the teeth, along with a diet high in roughage, acts as a natural inhibitor of the tooth's growth.
Symptoms and Types
There are many factors that can lead to cheek teeth overgrowth. The most significant contributing or exacerbating factor is a diet that contains inadequate amounts of the coarse roughage material that is required for properly grinding the tooth's surface, allowing the incisors to grow into the surrounding soft tissues, damaging the tissue and even leading to secondary bacterial infections in the mouth. Dwarf and lop breeds have been found to be at an increased risk for congenital malocclusion, as they are more prone to skeletal abnormalities.
Your veterinarian will perform a thorough physical exam on your rabbit, differentiating between overgrown incisors and other tumors of the mouth of skull. Visual diagnostics will include skull and face X-rays, and computed tomography (CT) for better viewing of abnormalities. A fine needle aspiration (drawing and analyzing the fluid from swelling) will be taken for laboratory testing. A complete blood profile will be conducted, including a chemical blood profile, complete blood count, urinalysis, and a bacterial culture to determine the exact strain of bacteria so that the appropriate antibiotics can be prescribed.
The type of contact that occurs between the teeth where chewing is concerned
A type of animal feed that is high in fiber; may include hay or pasture crops
An in-depth examination of the properties of urine; used to determine the presence or absence of illness
A condition in which the teeth do not connect properly
The condition of being drowsy, listless, or weak
A crop; often eaten by horses as a vital source of fiber and protein. Alfalfa has compound leaves made up of three small leaves.
The term for the front teeth that are used for cutting
A localized infection, usually a lesion filled with pus. Can be large or small in size.
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