Mijiritsky Eitan, Barone Antonio, Cinar Ihsan Caglar, Nagy Katalin, Shacham Maayan
Tel-Aviv Sourasky Medical Center, Department of Otolaryngology, Head and Neck and Maxillofacial Surgery, Tel Aviv-Yafo 6139001, Israel.
The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv-Yafo 6139001, Israel.
J Clin Med. 2021 Sep 14;10(18):4138. doi: 10.3390/jcm10184138.
Long-term studies addressing the outcomes of single immediate implantation and provisionalization at the maxillary esthetic zone are needed. The current study aimed to assess such outcomes along a follow-up period of up to 18 years.
The current study is a continuation follow-up of our previously published up to 6-year follow-up study, dated between the years 2002-2008, performed in a private clinical practice in Tel-Aviv, Israel. A total of 15 patients (23 implants) who had been treated for single-tooth replacement at the maxillary esthetic zone since 2002, underwent clinical and radiographic follow-up evaluations. Primary outcomes included mean Marginal Bone Levels (MBL), with Bleeding on Probing (BOP), implant success rate, prosthetic and esthetic complications evaluated as secondary outcomes.
The implant success rate was at 100%. Bone remodeling processes were observed over the follow-up period, with 0.9 mm mean marginal bone loss observed during the first 6 years of observation, followed by -0.13 ± 0.06 mm mean loss after 6 to 18 years. The last finding suggests bone deposition, as reported by other studies (Donati et al., 2012). At the final radiographic evaluation, a mean MBL of 1.35 mm ± 0.16 was demonstrated. No differences with respect to implant type or site were found. A generalized absence of BOP and esthetic complications occurred in two cases as a result of continuous adjacent teeth eruption versus obvious implant ankylosis.
Adhering to careful clinical protocols and 3D bone to implant considerations while immediately placing an anterior implant, this treatment approach offers both stable and esthetically acceptable results for the replacement of missing teeth at the maxillary esthetic zone.
需要进行长期研究以探讨上颌美学区单颗即刻种植及临时修复的效果。本研究旨在评估长达18年随访期内的此类效果。
本研究是对我们之前发表的、于2002年至2008年在以色列特拉维夫一家私人诊所进行的长达6年随访研究的继续随访。共有15例患者（23颗种植体）自2002年起在上颌美学区接受单颗牙缺失修复治疗，接受了临床和影像学随访评估。主要结局包括平均边缘骨水平（MBL）、探诊出血（BOP）、种植体成功率，将修复和美学并发症评估为次要结局。
种植体成功率为100%。在随访期内观察到骨重塑过程，在观察的前6年平均边缘骨吸收0.9 mm，随后在6至18年平均吸收-0.13±0.06 mm。最后这一结果提示骨沉积，正如其他研究（多纳蒂等人，2012年）所报道的那样。在最终影像学评估中，显示平均MBL为1.35 mm±0.16。未发现种植体类型或部位存在差异。由于相邻牙齿持续萌出与明显的种植体骨结合，有两例出现了普遍不存在BOP和美学并发症的情况。
在即刻植入前牙种植体时，遵循仔细的临床方案以及骨与种植体的三维考量，这种治疗方法为上颌美学区缺失牙的替代提供了稳定且美学上可接受的效果。
