Types and incidence of human periapical lesions obtained with extracted teeth
Types and incidence of human periapical lesions obtained with extracted teeth
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DOI：
10.1016/s1079-2104(96)80156-9
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发表时间：
1996-01-01
影响因子：
--
通讯作者：
Schroeder, HE
中科院分区：
文献类型：
--
作者：
Ramachandran, PN;Pajorola, G;Schroeder, HE
目标。确定(1)拔牙获得的人类根尖周围病变中脓肿、肉芽肿和根状囊肿的发生率；(2)在与根管相关的组织学分析中，根尖周囊肿是否分为两类。研究设计。共分析病灶256个。这些标本被脱钙并嵌入塑料中。制作连续切片或阶梯连续切片，并根据预先设定的组织病理学标准对切片进行评价。256例标本中35%为根尖周脓肿，50%为肉芽肿，15%为囊肿。后者可分为根尖真囊性囊肿和根尖袋性囊肿两大类。这些结果表明(1)根尖周围病变中根状囊肿的发生率较低，而不是普遍认为的几乎一半的根尖周围病变是囊肿；(2)两类根性囊肿的发生。我们认为袋囊肿可以在根管治疗后愈合，但真正的囊肿不太可能通过传统的根管治疗来解决。
Objectives. To determine (1) the frequency of the incidence of abscess, granuloma, and radicular cyst among human periapical lesions obtained with extracted teeth; and (2) whether periapical cysts occur in two categories when histologically analyzed in relation to the root canals.Study design. A total of 256 lesions were analyzed. The specimens were decalcified and embedded in plastic. Serial sections or step-serial sections were prepared, and the sections were evaluated on the basis of predefined histopathologic criteria.Results. The 256 specimens consisted of 35% periapical abscess, 50% granuloma, and 15% cysts. The latter occurred in two categories, the apical true cysts and the apical pocket cysts.Conclusions. These results show (1) the low incidence of radicular cysts among periapical lesions as against the widely held view that almost half of all periapical lesions are cysts; and (2) the occurrence of two classes of radicular cysts. We are of opinion that the pocket cysts may heal after root canal therapy but the true cysts are less likely to be resolved by conventional root canal treatment.