关键词: autograft block graft dentin guided bone regeneration horizontal bone augmentation implantology

来  源:   DOI:10.1002/cap.10291

Abstract:
BACKGROUND: This article intends to showcase a case of guided bone regeneration (GBR) utilizing a partially demineralized dentin plate processed from an extracted second molar for horizontal augmentation of the posterior ridge for implant placement.
RESULTS: A 60-year-old patient presented with horizontal ridge deficiency at site #30 and an endodontically treated tooth #31 with recurrent decay. A treatment plan was proposed to extract tooth #31 and utilize a dentin graft from the tooth for ridge augmentation at site #30. Following the atraumatic extraction of tooth #31, it was sectioned into a 1 mm thick dentin plate, sterilized, and processed to obtain a demineralized dentin graft. Following a mid-crestal incision and full-thickness flap elevation, the dentin plate was adapted on the buccal defect of site #30 with 10 mm fixation screws, and the gap between the plate and the buccal bone was filled with 0.5 cc of 50/50 cortico-cancellous bone allograft hydrated with saline, covered with collagen membrane followed by primary closure. At 6 months, a postoperative cone-beam computed tomography (CBCT) was obtained to evaluate the ridge width revealing sufficient ridge width for optimal implant placement. The radio-opaque dentin plate was visible on the CBCT depicting integration with the alveolar ridge. Following surgical implant preparation protocol, a 4 mm diameter and 8.5 mm length implant was placed in a restoratively driven position.
CONCLUSIONS: This case reports favorable outcomes for GBR using a partially demineralized dentin plate as an alternative to an autogenous bone block graft for horizontal ridge augmentation for future implant placement.
CONCLUSIONS: This case introduces a novel method utilizing partially demineralized dentin plates derived from extracted teeth for guided bone regeneration, showcasing its potential efficacy in addressing ridge deficiencies. Success, in this case, relies on meticulous sectioning of the tooth and processing of the dentin graft, precise adaptation and fixation of the graft to the residual ridge, and achieving primary closure for undisturbed healing. Limitations to success include the availability of teeth for extraction coinciding with the need for ridge augmentation and unstable graft fixation.
摘要:
背景:本文旨在展示一种引导骨再生(GBR)的案例,该案例利用从拔除的第二磨牙加工的部分去矿质牙本质板,用于水平增加后脊以进行植入物放置。
结果:一名60岁的患者在30号部位出现水平脊缺陷,以及经过牙髓治疗的31号牙齿反复腐烂。提出了一种治疗计划,以拔出31号牙齿,并利用牙齿上的牙本质移植物在30号位置进行隆脊。在无创伤拔除31号牙齿后,将其切成1毫米厚的牙本质板,灭菌,并进行处理以获得脱矿质的牙本质移植物。在中体切口和全层皮瓣抬高后,用10mm固定螺钉将牙本质板适应于位置#30的颊部缺损,钢板和颊骨之间的间隙用0.5cc用盐水水合的50/50皮质松质骨同种异体移植物填充,覆盖有胶原膜,然后是初级闭合。6个月时,获得了术后锥形束计算机断层扫描(CBCT)来评估脊部宽度,揭示了足够的脊部宽度以实现最佳植入物放置.在CBCT上可见不透射线的牙本质板,描绘了与牙槽的整合。按照外科植入物准备方案,将4mm直径和8.5mm长度的植入物置于可恢复驱动的位置。
结论:该病例报告了GBR使用部分脱矿质的牙本质板作为自体骨块移植的替代方法,用于水平隆脊的未来植入物放置。
结论:本案例介绍了一种新颖的方法,该方法利用从拔牙中提取的部分去矿质牙本质板进行引导骨再生,展示其在解决山脊不足方面的潜在功效。成功,在这种情况下,依赖于细致的牙齿切片和牙本质移植物的处理,将移植物精确地适应和固定到残留的山脊上,并实现原封不动的愈合。成功的局限性包括拔牙的可用性与隆脊和不稳定的移植物固定的需要相吻合。
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