インプラントの画像診断ガイドラインの開業医における周知状況

抄録

Background: The Clinical Practice Guideline for Image Diagnosis in Implant Dentistry (GIDID) was drawn up by the Japanese Society for Oral and Maxillofacial Radiology (JSOMR) as a criterion for justification and optimization of image examination with radiation exposure in implant treatment. It was listed in the Medical Information Network Distribution Service (Minds) in 2008. The GIDID is intended for all dentists engaged in dental implant treatment. Objectives: The aim of this study was to find out the degree of recognition of the GIDID and the state of implementation of CT examination for implant treatment among general dental practitioners (GPs) . Methods: For 83 GPs engaged in implant therapy, we conducted a questionnaire survey on possession of dental cone-beam CT (CBCT) , number of dental implants placed in the most recent one year, membership of academic societies related to image diagnosis in implant dentistry, recognition of the GIDID and Minds, and the state of implementation of CT examination for preoperative diagnosis in implant treatment. Results: Among the 50 GPs who replied to the questionnaire (60.2%) , 7 GPs had CBCT (14%) , and 43 GPs did not (86%) . The owners group had placed more implants than the non-owners group over one year (median, 70 vs. 10; p=0.001) . In both groups, most GPs belonged to the Japanese Society of Oral Implantology (JSOI) (owners group: 71.4%; non-owners group: 27.9%) . There were no members of JSOMR. Regardless of possession of CBCT, most GPs were not aware of the GIDID (owners group: 42.9%; non-owners group: 52.3%) . Of the 50 GPs, 46 did not know about Minds (92%) , and 25 including all owners of CBCT performed CT examinations for all implant cases (50%) . Among the owners group, their rates of performing CT inspection before installing CBCTs in their clinics had ranged from 5 to 80% (median 50%) . Conclusion: The results suggest that the introduction of CBCT into clinics increases the indication of CT examination for dental implant treatment. The JSOI therefore has an important role to play in increasing awareness of the Guideline established using an evidence-based medicine approach to implant dentistry and listed in the Minds, even though it was drawn up by another society.