期刊
CLINICAL ORAL IMPLANTS RESEARCH
卷 24, 期 10, 页码 1144-1151出版社
WILEY
DOI: 10.1111/j.1600-0501.2012.02524.x
关键词
Astra Tech implant; Branemark system turned implants; comparative study; endosseous implants; marginal bone level; success rate; survival rate
Aim To study the long-term outcome of implant survival rate, soft and hard tissue conditions and prosthetic status in a group of individuals treated with either Astra Tech TiOblast or Branemark turned implants supporting a full-arch bridge. Material and methods Edentulous patients treated with either Astra Tech TiOblast surface or Branemark turned implants were recalled for examination after 12-15years. Out of initially 66 patients 46 were available for examination. Intra-oral radiographs were taken for bone level assessments. Clinical prosthetic conditions, number of surviving implants, implant stability, plaque scores, probing pocket depths, bleeding and pus after probing were recorded. Analyses of bone level changes during the total observation period were performed. Results Three patients in the Astra Tech group lost totally eight implants and five patients in the Branemark group lost 10 implants during the total observation period. No statistically significant difference in implant loss or bone level change was found. Sixteen per cent of Astra Tech and 29% of Branemark patients showed at least one implant with 2mm bone loss after the first year in function. The corresponding prevalence on implant level was 6% and 5% respectively. No significant differences were found between the other examined variables. Two patients showed prosthetic complications of the supra construction in need of repair. Seven bridges had minor ceramic chippings. Conclusion Treatment with Astra Tech TiOblast implants and Branemark turned implants supporting full-arch bridges showed generally good clinical results with low numbers of implants with marginal bone loss indicative of peri-implantitis. No significant differences were found between the implant systems after 12-15years in function.
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