First, the normal number of teeth.
Number of teeth in normal adult dogs, maxilla (3 incisors per volume, 1 canine teeth, 4 premolars and 2 posterior molars)
Normal adult dogs have teeth and jaws (3 incisors, 1 canine teeth, 4 premolars and 3 molars), so adult dogs should have 20 teeth in the upper jaw, 22 teeth in the lower jaw and 42 teeth in one * * *.
Adult cats have normal maxilla (3 lateral teeth, 1 canine teeth, 3 premolars, 1 posterior molars).
Adult cats have normal mandibles (3 incisors, canine teeth 1 tooth, 2 premolars, and posterior molars 1 tooth).
So cats have 16 teeth in the upper jaw, 14 teeth in the lower jaw, and * * * has 30 teeth. The kitten's teeth are 3 maxillary incisors, 3 premolars, 0 posterior molars, 3 mandibular incisors, 2 canine teeth, and 26 premolars. The puppy's teeth are 3 maxillary incisors, 65,438+0 canine teeth, 3 premolars, 0 posterior molars, 3 mandibular incisors, 65,438+0 canine teeth, 3 premolars and 0 posterior molars. ***28) The number of teeth of young animals is different from that of adult animals.
Second, the growth time of each tooth.
The growth time of dog teeth begins to change from three months. The growth time of cat teeth began to change from 3 months. The approximate age of animals can be determined according to the time of tooth replacement.
Third, the tooth anatomy
(alveolar bone alveolar bone mucogingival margin pulp cavity tooth dentin gingival sulcus gingival sulcus cementum cementum cementum cementum periodontal ligament nasal cavity)
Fourth, the correct way to finish.
Dog, basic occlusion mode, dog. Canine teeth in the lower jaw are behind canine teeth in the upper palate.
The basic occlusal pattern of cats: the anterior side (modified Triadan system, the oral cavity is divided into 1-4 quadrants, starting from the upper right clavicle and ending at the lower right clavicle when viewed clockwise. Using this system, the front teeth of the upper right clavicle are numbered 10 1, 102 and 103. The tail number of canine teeth is 4 (1 04,204,304,404), and the tail number of1molar tooth is 9 (109,209,309,409). The number of deciduous teeth is the same, and each quadrant is headed by 5, 6, 7 and 8. )
Verb (abbreviation for verb) dental record form
Dog tooth records, for example, have different forms. Fill in the dental record form during dental examination and record the health status of each tooth in detail.
Six, dental examination
Periodontal probe is used to explore periodontal pocket. The tip of the probe enters the calcaneal sulcus and slowly surrounds the teeth to measure the depth of the calcaneal sulcus. Most oral examination records can record the periodontal depth measurement results of 4-6 parts of each tooth. Record the vertical direction, lip/cheek middle and tongue/vine middle. When measuring the depth of heel groove, it is normal for dogs to be less than 3mm and cats to be less than1mm. Once the depth exceeds the normal value, it is periodontal disease. The false heel pocket is formed by heel hyperplasia (usually seen in boxer dogs). Heel atrophy can also be measured by periodontal probe. The handle of the probe can be used to check the looseness of teeth, and the looseness of teeth can be determined by gently applying pressure.
Tooth heel inflammation index is scored from 0 to 3, with 0 being a healthy heel; 1 is mild inflammation, characterized by swelling of the root and redness of the edge; 2. Moderate inflammation, manifested as bleeding when probing the heel with a probe; 3 is severe gingivitis, which will spontaneously bleed with a little touch.
According to the stone index score, mild calcaneal inflammation refers to a small amount of stones at the heel edge, moderate calcaneal inflammation refers to stones below and behind Yoshiko Yura, and severe odontopathy refers to that most of the teeth are covered with stones. Although calculus itself does not necessarily lead to periodontitis, its rough surface will aggravate periodontal disease.
If the animal suffers from severe periodontal disease and the doctor suspects extensive bone resorption after periodontal visit, X-rays should be taken of the severely infected area to determine whether the mandible is complete and whether pathological fracture has occurred. In addition, before scraping and polishing periodontal tissue, X-rays should be taken.