The Author has studied pathologically on the 22 cases of the Benign Tumor of Osteogenic Origin in the Jaws which were obtained from Dec, 1959 to Sep, 1970 at Dept. of Oral Pathology, College of Dentistry, S. N. U. and conclusion were made.
The results are as follows;
1. 22 cases of tumor were devided into 10 cases (45.45%) of Ossifying fibroma, 6 cases(27.27%) of Osteoma, 3 cases (13.63%) of Myxoma, 2 cases (9.09%) of Chondroma, 1 case (4.54%) of Central fibroma.
2. In age groups, 22 cases of tumor were distributed.
9 cases (40. 91%) in the 2nd decade.
7 cases (31.82%) of fourth decade.
3 cases (13.62 %) of 1st, decade.
2 cases (9. 09 00) of 3rd decade.
1 case (4.56%) of fifth decade.
The average age was 32.27 years.
3. 10 cases (45.5%) of 22 cases of tumor were occured in male and 12 cases (54.5% ) in female.
4. In site of Occurance, 7 cases (31.82%) of 22 cases of tumor were occured in upper Jaw, 15 cases (68.180) in lower Jaw.
5. In the individual tooth, 6 cases (27.93%) of 22 cases of tumor were occured in anterior, portion, 16 cases (78.07%) in posterior portion.
6. The average duratiop was 2.2 years.
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