Purpose: Surgical templates produced by digital simulation and CAD/CAM allow for three-dimensional control of implant placement. However, due to clinical limitations, there are complications during the use of the temp...Purpose: Surgical templates produced by digital simulation and CAD/CAM allow for three-dimensional control of implant placement. However, due to clinical limitations, there are complications during the use of the template. The purpose of this study was to summarize the complications associated with the use of surgical templates for static computer-aided implant surgery. Methods: Complications were collected during the observation period, and then their implant sites were reanalyzed with simulation software. Results: There were 104 cases during the observation period, 5 cases had complications. Mechanical complications were observed in four cases, including three cases in which the frame of the template fractured during implant placement surgery and one case in which the sleeve fell off the surgical template. In one case, there was an error in the planned position. All cases were mandibular molar cases, and all cases of frame fracture were at the free end defect site. All cases had a Hounsfield unit of more than 700 at the implant site, and some of them had a significantly small jaw opening. Conclusion: Although the spread of CAD/CAM surgical templates has made it possible to avoid problems caused by the position of the implant, it has been difficult to avoid fractures in cases of mandibular free end defects with high Hounsfield unit.展开更多
目的:探讨以临床数据为基础的计算机辅助设计/计算机辅助制造(C A D/C A M)导板用于上颌牙列缺失患者种植术中的可行性。方法:上颌牙列缺失的患者共13例,对患者进行C B C T检查,采集数据,设计并制作C A D/C A M导板,导板辅助下不翻瓣植...目的:探讨以临床数据为基础的计算机辅助设计/计算机辅助制造(C A D/C A M)导板用于上颌牙列缺失患者种植术中的可行性。方法:上颌牙列缺失的患者共13例,对患者进行C B C T检查,采集数据,设计并制作C A D/C A M导板,导板辅助下不翻瓣植入92颗种植体,种植后C B C T再次检查,对比种植后种植实际位置和术前设计种植体位置偏倚。结果:C A D/C A M辅助下头部偏差(0.83±0.05)m m,根部平均偏差(0.88±0.13)m m,深度平均偏差(0.75±0.19)m m,角度平均偏差(1.13±0.03)°。结论:C A D/C A M种植导板辅助下上颌牙列缺失患者种植有一定位置偏倚,但尚在可接受程度内,在上颌牙列缺失需要种植修复的患者中具有临床应用价值。展开更多
文摘Purpose: Surgical templates produced by digital simulation and CAD/CAM allow for three-dimensional control of implant placement. However, due to clinical limitations, there are complications during the use of the template. The purpose of this study was to summarize the complications associated with the use of surgical templates for static computer-aided implant surgery. Methods: Complications were collected during the observation period, and then their implant sites were reanalyzed with simulation software. Results: There were 104 cases during the observation period, 5 cases had complications. Mechanical complications were observed in four cases, including three cases in which the frame of the template fractured during implant placement surgery and one case in which the sleeve fell off the surgical template. In one case, there was an error in the planned position. All cases were mandibular molar cases, and all cases of frame fracture were at the free end defect site. All cases had a Hounsfield unit of more than 700 at the implant site, and some of them had a significantly small jaw opening. Conclusion: Although the spread of CAD/CAM surgical templates has made it possible to avoid problems caused by the position of the implant, it has been difficult to avoid fractures in cases of mandibular free end defects with high Hounsfield unit.
文摘目的:探讨以临床数据为基础的计算机辅助设计/计算机辅助制造(C A D/C A M)导板用于上颌牙列缺失患者种植术中的可行性。方法:上颌牙列缺失的患者共13例,对患者进行C B C T检查,采集数据,设计并制作C A D/C A M导板,导板辅助下不翻瓣植入92颗种植体,种植后C B C T再次检查,对比种植后种植实际位置和术前设计种植体位置偏倚。结果:C A D/C A M辅助下头部偏差(0.83±0.05)m m,根部平均偏差(0.88±0.13)m m,深度平均偏差(0.75±0.19)m m,角度平均偏差(1.13±0.03)°。结论:C A D/C A M种植导板辅助下上颌牙列缺失患者种植有一定位置偏倚,但尚在可接受程度内,在上颌牙列缺失需要种植修复的患者中具有临床应用价值。
