Background Dental implants have been widely used in the last few decades.However,patients with insufficient bone height need reconstructive surgeries before implant insertion.Distraction implant(Dl)has been invented to simplify the treatment procedure,but the shortcomings of Dl have limited its clinical use.We introduced biodegradable polyester to a novel Dl,called biodegradable interference distraction implant(BIDI).The purpose of this study was to assess the radiological,histological,and biomechanical properties of BIDI in animal models.Methods BIDIs were manufactured and inserted into the atrophied mandibles of 6 dogs.
目的:探讨上颌前牙牙周病致牙槽骨吸收、患牙松动、功能丧失而不能保留时即刻种植的临床技巧和不同修复方法的应用时机,评价牙周病牙槽骨吸收情况下即刻种植治疗的效果。方法:2008年1月-2011年1月在我院实施上前牙牙周病即刻种植、固定修复病例30例,即刻种植辅以引导骨再生技术GBR(guided bone regeneration)、Onlay植骨、骨劈开技术及延深植入深度等,修复方式采用粘结固位、螺丝固位等:包括角度基台、个性化制作基台以及过渡义齿牙龈成形、牙冠颈部填加牙龈瓷等美学补偿方式达到修复效果。结果:30例患者种植体稳定、修复效果良好,患者的主观满意度好、X线检查种植体周围骨质稳定、牙龈形态保持良好。结论:牙槽骨吸收的牙周病患者即刻种植只要把握种植时机、种植术式,采取灵活的修复方案是可以达到较理想的治疗效果的。
