Int J Esthet Dent. 2023 Jul 18;18(3):278-291.
The present case report with medium-term follow-up aims to report on the successful outcomes of ridge preservation using anorganic bovine bone mineral (ABBM) combined with the socket-shield technique (SST) in conjunction with immediate ovate pontic provisionalization of the extraction site, followed by delayed flapless implant placement and immediate implant provisionalization in the rehabilitation of the maxillary anterior esthetic region. Clinical protocol: Three consecutive patients with failing maxillary anterior teeth were treated with this protocol. The alveolar ridge dimension was preserved utilizing ABBM, combined with the retention of a partial tooth root segment in the buccal portion of the extraction socket, to minimize ridge resorption following tooth extraction. An immediate fixed provisional restoration with an ovate base in direct contact with the extraction site was fabricated and delivered immediately to maintain the soft tissue contour. At 4 months postextraction, flapless implant placement was performed via a computer-generated surgical guide, along with immediate implant provisionalization. Definitive restorations were delivered 4 months following implant placement.
At the 2-year follow-up after loading, prosthetic and implant success was demonstrated, with a favorable esthetic outcome and a high level of patient satisfaction.
The immediate ovate pontic provisionalization in conjunction with ridge preservation combining ABBM and the SST, followed by flapless computer-guided implant placement with an immediate implant provisionalization protocol, as proposed in this article, offers a viable method to minimize alveolar ridge resorption as well as optimize esthetic outcomes.
本病例报告的中期随访旨在报告使用无机牛骨矿物质(ABBM)结合 socket-shield 技术(SST)联合即刻椭圆形 pontic 临时修复拔牙部位、随后延迟无瓣种植体植入和即刻种植体临时修复在前美学区上颌骨的成功结果。临床方案:该方案治疗了三例上颌前牙失败的连续患者。通过 ABBM 保留牙槽嵴尺寸,并在拔牙窝的颊侧部分保留部分牙根段,以最大限度地减少拔牙后牙槽嵴吸收。制作了具有椭圆形基底的即刻固定临时修复体,并直接与拔牙部位接触,以保持软组织轮廓。拔牙后 4 个月,通过计算机生成的手术导板进行无瓣种植体植入,并立即进行种植体临时修复。在植入物放置后 4 个月交付最终修复体。
在负载后 2 年的随访中,显示出修复体和植入物的成功,具有良好的美学效果和高水平的患者满意度。
本文提出的即刻椭圆形 pontic 临时修复联合 ABBM 和 SST 联合即刻椭圆形 pontic 临时修复,随后采用无瓣计算机引导种植体植入和即刻种植体临时修复方案,是一种可行的方法,可以最大限度地减少牙槽嵴吸收并优化美学效果。