Zain R B, Roswati N, Ismail K
Ann Dent. 1989 Winter;48(2):3-5, 46.
A total of 149 periapical lesions were classified histologically into cysts, granulomas and other lesions. It was found that 53% were cysts, 39% were granulomas and 8% were other lesions. Of the 149 periapical lesions classified, 69 selected cases of cysts and granulomas were obtained and radiographic measurements of area (mm2), largest diameter (mm) and largest root-to-border distance (mm) were recorded. It was found that there is an apparent increase in cystic prevalence with an increase in the area, largest diameter or largest length of the periapical lesions radiographically. A cystic prevalence of 92-100% is observed with a radiographic area of greater than 200 mm2, a radiographic distance and diameter of greater than 20 mm.
总共149个根尖周病变在组织学上被分为囊肿、肉芽肿和其他病变。结果发现，53%为囊肿，39%为肉芽肿，8%为其他病变。在149个已分类的根尖周病变中，选取了69例囊肿和肉芽肿病例，并记录了面积（平方毫米）、最大直径（毫米）和最大根尖至边界距离（毫米）的影像学测量值。结果发现，随着根尖周病变影像学上面积、最大直径或最大长度的增加，囊肿的患病率明显增加。当影像学面积大于200平方毫米、影像学距离和直径大于20毫米时，囊肿患病率为92%-100%。
