期刊
JOURNAL OF PERIODONTOLOGY
卷 79, 期 4, 页码 737-747出版社
WILEY
DOI: 10.1902/jop.2008.070293
关键词
bone regeneration; case series; dental implants; molar
Background: Theoretically, the ability to place implants in ideal positions at the time of mandibular molar extraction with concomitant regenerative therapy would simplify and shorten the course of therapy for patients. Methods: A total of 341 implants were placed in 320 individuals at the time of mandibular molar hemisection and extraction. Concomitant regenerative therapy was performed around 332 of the placed implants. No regenerative therapy was performed around the remaining nine implants. Eleven additional sites, in which simultaneous implant placement was planned, were treated instead with regenerative therapy alone using graft material and a covering membrane. Implants were placed in these sites in subsequent surgical visits.. Results: One implant was mobile 3 weeks postinsertion. A second implant was lost after 30 months in function. All other implants were stable at the time of uncovery 3 to 7 months postinsertion. A total of 339 implants have been in function for up to 6 years, with a mean time in function of 30.8 months, yielding a cumulative survival rate of 99.1%. Conclusion: Implants may be placed in ideal restorative positions at the time of mandibular molar extraction with or without concomitant regenerative therapy.
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