Transition in the Number of Wisdom Teeth of Matsumoto Dental College Undergraduate Clinic Students Part III

The transition of the 638 wisdom teeth of 227 undergraduate students (239 males and 38 females) during the year 1983-1984 was investigated and compared with the results obtained in the reports I and II. 1) About 90.6% of the students were 20 to 25 years old. 2) The members of eruption teeth with complete and incomplete root apices in the maxillo-mandible were 1550 and 79 respectively. In impact teeth, the number of the teeth with complete root apices was 593 and that of the teeth with incomplete root apices was 192. This indicates that complete root apices are more numerous in eruption teeth than in impact teeth. 3) The inclination of most of wisdom teeth in the maxilla are vertical. The mandible also tended to have more vertical wisdom teeth. 4) Wisdom teeth did not appear to be utilized as the teeth for restoration. 5) The number of wisdom teeth that had received surgical treatment was 646. Their classification is as follows; anti-inflammatory drugs (+) and extraction (-)……33 teeth anti-inflammatory drugs (+) and extraction (+)……47 teeth anti-inflammatory drugs (-) and extraction (+)……566 teet