1988 Volume 28 Issue 4 Pages 437-442
The eighteen cases of dentigerous type of pathohistologically established 18 cases of ameloblastoma and the 55 cases of dentigerous cyst were used as materials in this study. The author analyzed the distance from the cement-enamel junction of embedded teeth to the cystic wall attachment, in comparison with the distance between the junction and the root apex, and the area of radiolucent (cyst-like radiolucency). From the result of the analysis, the cystic wall attachment of ameloblastoma tended to be closer to the root apex than that of dentigerous cyst. As for the area, the ameloblastoma group had large and small areas but the area of the dentigerous cyst group tended to be small.
The area and distance of ameloblastoma group did not show any characteristics but those of dentigerous cyst group were inclined to show low values.
