Objective: This study aimed to evaluate the clinical effect of the socket-shield technique in the maxillary anterior region at one year after implant placement.
Methods: Ten patients with maxillary anterior teeth that cannot be reserved were enrolled. Implants were installed following the socket-shield technique and restored six months after the surgery. The thickness of the labial maxillary bone of the implant was compared before and one year after the surgery. At one year follow-up, the reten-tion rate of the implants, Jemt classification, and pink and white aesthetic scores were evaluated. Postoperative complications and patient satisfaction were also analyzed.
Results: One year after installation, the retention rate of the implant was 100%. The thickness of the maxillary bone at the neck, central, and root section of the implant reduced to (0.27±0.21), (0.19±0.20), and (0.28±0.29) mm, respectively, compared with the values immediately after the operation. The thickness of the labial maxillary bone at the three measurement points immediately after and one year after the operation was statistically significant (P<0.05). No significant difference (P>0.05) of the difference thickness between immediate and one year after operation at the three measurement points. The pink esthetic scores of the implant prosthesis was 9.10±0.54, and the white esthetic scores was 9.00±0.63. No complications were observed, and the patients had a high degree of satisfaction.
Conclusions: The socket-shield technique could provide acceptable treatment results but cannot completely avoid the reconstruction of the labial maxillary bone of the implants. The technique exhibits favo-rable short-term aesthetic result, but its long-term clinical effect and aesthetic problems need to be further studied.
目的 观察上颌前牙区应用根膜技术即刻种植1年后的临床效果。方法 选取10例上颌前牙区牙齿不能保留的患者，应用根膜技术保留唇侧根片并同期植入种植体，术后6个月行永久冠修复，术后1年复查。术后1年统计种植体存留率；测量术后即刻和术后1年种植体唇侧硬组织厚度；统计术后1年种植修复体牙间乳头外形，并对修复体的红白美学进行评分；统计并发症发生情况及患者对治疗过程的满意度。结果 术后1年复查，种植体存留率为100%；种植体唇侧颈、中、根部硬组织厚度相较于术后即刻分别减少（0.27±0.21）、（0.19±0.20）、（0.28±0.29） mm；术后1年3个测量位点唇侧硬组织的厚度与术后即刻相比，差异均有统计学意义（P<0.05），但3个位点硬组织厚度的变化量无明显差异（P>0.05）；修复体牙间乳头大多充满邻间隙，粉红色美学指数为9.10±0.54，白色美学指数为9.00±0.63；术后无明显并发症，患者满意度高。结论 根膜技术应用于上颌前牙区无法完全避免种植体唇侧硬组织的吸收，但短期修复美学效果良好，长期的临床效果仍需进一步随访观察。.
Keywords: aesthetic area implant; immediate implant; socket-shield technqiue.