数字化快速成型牙种植导板辅助修复上前牙种植:12个月随访

Digital rapid prototyping implant template assists anterior tooth restoration in maxillary esthetic zone: a follow-up of 12 months

背景:前牙区种植的难度较大,以往常规种植无法获得理想的效果。目的:观察数字化快速成型种植导板修复上前牙种植的可行性。方法:纳入需接受上前牙种植修复的患者80例,按照患者意愿选择治疗方案,分为2组,每组40例,分别实施常规种植修复治疗和数字化快速成型种植导板辅助修复治疗。测量植入后两组X,Y,Z轴误差情况进行,随访12个月。结果与结论:(1)植入后两组X,Y,Z轴误差情况测量和比较:观察组在X,Y,Z轴的误差均显著小于对照组(P<0.05),植入后随访24个月,两组患者植入后前牙修复外观良好,未出现修复体松动等情况。(2)影像学复查:两组种植体周围均未观察到明显的骨吸收现象。(3)结果表明:上前牙区种植修复治疗过程中,应用数字化快速成型技术进行辅助治疗,可获得理想的治疗效果及更加精确的种植体植入位置。

BACKGROUND： Dental implantation in maxillary esthetic zone is difficult to achieve desired outcomes. OBJECTIVE： To observe the feasibility of digital rapid prototyping implant template for anterior implantation. METHODS： Eighty patients scheduled to receive anterior implant treatment were enrolled. According to the wishes of patients, they were divided into two groups, with 40 cases in each group, and were given routine implant treatment（control group） and digital rapid prototyping template-aided dental restoration（observation group）. After implantation, the X-axis, Y-axis and Z-axis errors of the two groups were measured, and the patients were followed up for 12 months. RESULTS AND CONCLUSION： After implantation, the errors of X, Y and Z axes in the observation group was significantly lower than those in the control group（P 0.05）; at 24 hours after implantation, patients in the two groups showed good appearance of the anterior tooth with no dental prosthesis loosing. Imaging examinations in the two groups showed no obvious bone resorption. These findings indicate that the aid therapy using digital rapid prototyping can obtain satisfactory therapeutic effect on anterior tooth restoration in the maxillary esthetic zone and precisely localize the dental implantation site.