Objective: To compare the clinical effects of a modified socket shield technique (SST) and the conventional immediate implant placement in the esthetic zone.
Methods: Twenty-four patients with one hopeless upper incisor were consecutively enrolled in this study. All patients were scheduled for immediate implant placement. Twelve patients underwent a modified SST (experimental group) whereas the others underwent conventional procedures (control group). Radiographic and clinical data were obtained preoperatively, immediately after surgery, and 12 months after surgery. The success rate of the implants, the pink esthetic score (PES) and patient satisfaction were analyzed. Statistical analysis was conducted using SPSS 21.0 software.
Results: One year after operation, the success rate of the implants was 100% in both groups. The PES and patient satisfaction of the experimental group were significantly higher than those of the control group (P<0.05). The buccal bone plate resorbed less in the experimental group than in the control group (P<0.05).
Conclusions: The modified SST is advantageous over the conventional immediate implant placement in terms of buccal bone and soft tissue maintenance.
目的 对比研究美学区改良盾构术与传统即刻种植术的临床效果。方法 选取24例行上颌前牙区单颗牙即刻种植的患者，12例行改良盾构术（试验组），12例行传统即刻种植术（对照组），随访1年，比较两组患者的种植成功率、红色美学指数（PES）、唇侧骨板吸收量以及患者满意度。采用SPSS 21.0软件进行统计学分析。结果 术后1年，两组患者的种植成功率均为100%；试验组PES评分以及患者满意度均高于对照组，唇侧骨板吸收量低于对照组，差异均有统计学意义（P<0.05）。结论 改良盾构术有利于维持唇侧骨量，从而获得更好的软组织美学效果。.
Keywords: buccal bone plate; esthetic outcomes; esthetic zone; immediate implant placement; socket shield technique.