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Maxillary ectopic canines can result in the resorption of central incisors in 15% of cases, and lateral incisors in 34% of cases. [11] Resorption is common, especially amongst females with enlarged dental follicles. [12] Although thought to be rare, there could also be cystic changes occurring in the crown of the ectopic canine. Hence if not ...
Resorption of the root of the tooth, or root resorption, is the progressive loss of dentin and cementum by the action of odontoclasts. [4] Root resorption is a normal physiological process that occurs in the exfoliation of the primary dentition .
Ankylosis of deciduous teeth may rarely occur. The most commonly affected tooth is the mandibular (lower) second deciduous molar. Partial root resorption first occurs and then the tooth fuses to the bone. This prevents normal exfoliation of the deciduous tooth and typically causes impaction of the permanent successor tooth.
A thicker layer of cementum can give the tooth an enlarged appearance, mainly occurring at the apex or apices of the tooth. The cellular cementum functions at the bottom half of the tooth roots which contain cementocytes that anchor the tooth into the jaw socket, protect the tooth's pulp, and repair external root resorption. [2]
Periodontal disease is the most common disease found in dogs and affects more than 80% of dogs aged three years or older. Its prevalence in dogs increases with age, but decreases with increasing body weight; i.e., toy and miniature breeds are more severely affected.
It is the longest tooth in total length (from the root to the incisal edge) in the mouth. Canines are also the only anterior teeth with a cusp. Maxillary canines begin to calcify by 4 months of age. The enamel of the tooth is completely formed by around 6 to 7 years of age and the permanent maxillary canines erupt at around 11 to 12 years of age.
The sabre-tooth water deer of China is often called the vampire deer due to the exceptionally long canine teeth in the males. In many species the canine teeth in the upper or lower jaw, or in both jaws, are much larger in males than in females, where they are sometimes hidden or completely absent.
In 1981, Andreasen [24] [25] [26] showed that crushing of cells on the tooth root could cause death of the cells and lead to resorption and reduction in prognosis. In 1983, Matsson et al. [44] showed that soaking in Hank's Balanced Solution for thirty minutes prior to reimplantation could revitalize extracted dog's teeth that were dry for 60 ...