Quintessence Int. 2021;52(2):132-137. doi: 10.3290/j.qi.a45432.
The extraction of a tooth with root resorption can be a complicated procedure and can result in the removal of a significant amount of alveolar bone. In the anterior maxilla, esthetic rehabilitation of damaged sites with implant-supported crown could require multiple surgeries. Patients often ask for an alternative, and minimally invasive treatments are generally preferred. In this paper, a clinical case of implant-supported crown in a site affected by root resorption is described. Immediate implant was placed leaving some root fragments in the osteotomy site, thus avoiding invasive extractive surgeries. A minimally invasive flapless technique with a computer-guided implant placement procedure was used. After ?8 years, clinical and radiologic data were stable, gingival tissues around the implant appeared healthy, no dark translucency appeared through marginal gingiva around the implant, and there was no pathologic probing pocket depth ?or bleeding on probing. In the presence of root resorption and ankylosis, computer-guided surgery could be helpful to prepare a precise implant site through various tissues, such as partially resorbed root remnants. (Quintessence Int 2021;52:132-137; doi: 10.3290/j.qi.a45432).
牙齿伴有根吸收的拔除术是一个复杂的过程,可能会导致大量牙槽骨的丧失。在前上颌,用种植体支持的牙冠对受损部位进行美学修复可能需要多次手术。患者通常会寻求替代方案,且通常更倾向于微创治疗。本文描述了一例因根吸收而受损的部位采用种植体支持牙冠的临床病例。即刻植入,在骨切开部位留下一些根碎片,从而避免了侵入性的拔牙手术。采用微创无瓣技术和计算机引导的种植体植入程序。8 年后,临床和影像学数据稳定,种植体周围的牙龈组织健康,种植体边缘的牙龈没有出现暗半透明,探诊袋深度或探诊出血也无病理性改变。在存在根吸收和骨粘连的情况下,计算机引导手术有助于通过各种组织(如部分吸收的根残端)准备精确的种植体部位。(《国际口腔医学杂志》2021 年;52 期:132-137;doi:10.3290/j.qi.a45432)。