Anneroth G, Ericsson A R, Zetterqvist L
Department of Oral Pathology, Umeå University, Sweden.
Swed Dent J. 1990;14(2):63-70.
The tissue intraosseous integration of A12O3-ceramic dental implants (Frialit) is studied in a patient case, where an implant-fracture made it necessary to remove the implant from a patient's jaw. The surgical removing of the apical part of the implant with the use of a Trepan bur made it possible to examine and visualize histologically and microradiographically the tissue adjacent to the implant. The results of both the histological and microradiographical studies showed that a good healing and osseointegration of the ceramic dental implant (Frialit) was obtained. A direct contact was established between the implant and the surrounding alveolar bone and the induced bone tissue fitted exactly to the contour of the implant. No evidence was found of formation of a connective tissue capsule between the implant and the adjacent alveolar bone nor of any inflammatory reaction in the interface zone. In summary it was evident from the result of the present study that the biocompatibility properties of pure aluminoxide ceramics (A12O3) are excellent and can be recommended as an acceptable alternative among the many different implants, that now are available on the market.
在一个病例中对A12O3陶瓷牙科植入物（Frialit）的组织骨内整合情况进行了研究，该病例中因植入物骨折而有必要从患者颌骨中取出植入物。使用环钻去除植入物的根尖部分，使得能够对植入物周围组织进行组织学检查以及微观放射学观察。组织学和微观放射学研究结果均表明，陶瓷牙科植入物（Frialit）实现了良好的愈合和骨整合。植入物与周围牙槽骨之间建立了直接接触，诱导形成的骨组织与植入物轮廓完全贴合。未发现植入物与相邻牙槽骨之间形成结缔组织包膜，也未发现界面区域有任何炎症反应。总之，从本研究结果可以明显看出，纯氧化铝陶瓷（A12O3）的生物相容性极佳，在市场上现有的众多不同植入物中，可作为一种可接受的替代品推荐使用。
