Development of a New Diagnostic System of Bone Quality for Endosseous Implant

为了开发一种新的骨内种植体骨诊断系统，对全景X线片和计算机断层扫描进行了可重复配准的评估。在专用夹具的帮助下，全景X线片和计算机体层摄影具有很高的重复性。这一结果增加了通过CT图像和全景X线片来阐明骨质量之间的相关性的可能性。在种植体插座的骨准备过程中，对种植体患者进行骨活检。取骨标本进行组织学和组织计量学评价。这些表现与术中骨质量的临床表现和CT检查的价值密切相关。通过咀嚼过程中下颌运动和肌肉活动的变化来评价种植体患者的口腔功能。上层建筑设置后，功能明显改善。这些结果表明，可重复的全景X线片与计算机断层图像的信息相关联，可以明显地有助于开发一种新的诊断系统，该系统能够很好地解释骨质量。

To develope a new diagnostic system of the bone for the endosseous dental implant, panoramic radiograghy and computed tomography were evaluated at repeatable registrations. With the aid of the special jigs, panoramic radiogram and computed tomogram were shown to be highly repeatable. This result enhances a possibility to clarify the correlation between bone quality by CT-image and panoramic radiogram. Bone biopsy was performed in the implant patients during the bone preparation for the implant socket. Histological and histometrical evaluations were done from the specimen of the bone. These findings well related to the clinical impression of the bone quality during operation and the value of CT. Stomatognathic function of the implant patients was also evaluated by the change of the mandibular movement and muscle activity during chewing. After superstructure setting, The function was obviously improved. These results suggest that repeatable panoramic radiogram correlated with the informations of computed tomogram could obviously contribute the development of a new diagnostic system which explains the bone quality well.