임플란트 보철물에서 임플란트와 지대주 사이에 공간이 생기게 되고 이러한 공간은 세균의 저장소로 작용하게 되어 임플란트 주위조직에 염증반응을 유발할 수 있다. 임상에서 임플란트 구성성분간의 이러한 공간은 피할 수 없는 문제임 에도 불구하고 이들 공간에 대한 임상적인 중요성이 임상가 와 제조자 모두에게 무시되어 왔다1).
Purpose: The purpose of this study was to investigate the detection rate of putative periodontopathogens, Porphyromonas. gingivalitis, Prevotella. intermedius, Tannerella. forsythensis, Treponema. denticola, Actinobacillus. actionmycetemcomitans, related to implant-abutment interface microleakage. Materials and Methods: Samples were taken from 27 subjects with sterilized paper points and were transported in 1*PBS. The detection of periodontopathogens were performed by polymerase chain reaction with species-specific primers based on 16S rDNA. The PCR products were cloned into pGEM-T easy vector and its nucleotides were sequenced in order to confirm the specificity. Results: Our data showed that the detection rate of Porphyromonas. gingivalitis and Prevotella. intermedius in implant fixture was 59% and 82% in patients respectively. Detection rate of Porphyromonas. gingivalitis and Prevotella. intermedius in implant crevice was 44% and 82% in patients. Detection rate of Porphyromonas. gingivalitis and Prevotella. intermedius in tongue was 82% and 82% in patients. Conclusion: Current implant systems cannot safely prevent microbial leakage and bacterial colonization of the inner part of the implant. (JOURNAL OF THE KOREAN ACADEMY OF IMPLANT DENTISTRY 2011;30(2):104-114)
서론 연구대상 및 방법 결과 결론 REFERENCES
