Fugazzotto Paul A
J Periodontol. 2008 Apr;79(4):737-47. doi: 10.1902/jop.2008.070293.
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.
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.
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%.
Implants may be placed in ideal restorative positions at the time of mandibular molar extraction with or without concomitant regenerative therapy.
理论上，在下颌磨牙拔除时将种植体置于理想位置并同时进行再生治疗，将简化并缩短患者的治疗疗程。
在下颌磨牙半切术和拔牙时，共为320例患者植入了341枚种植体。在332枚已植入的种植体周围进行了同期再生治疗。其余9枚种植体周围未进行再生治疗。另外11个计划同期植入种植体的部位，仅使用移植材料和覆盖膜进行了再生治疗。在随后的手术访视中于这些部位植入种植体。
一枚种植体在植入后3周出现松动。第二枚种植体在功能行使30个月后丢失。所有其他种植体在植入后3至7个月暴露时均稳定。共有339枚种植体已行使功能长达6年，平均功能行使时间为30.8个月，累积生存率为99.1%。
在下颌磨牙拔除时，无论是否进行同期再生治疗，均可将种植体置于理想的修复位置。
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