抄録
Subperiosteal implants are indicated for patients for whom endosteal implants cannot be used in the maxillary molar region. This paper describes the clinical evaluation of subperiosteal implants in that region.
Subjects and methods
At our clinic, 25 patients underwent subperiosteal implant operation in the maxillary molar region. Eighteen who responded to regular recalls were enrolled in this study. Subperiosteal implants were evaluated basically by the method of Abe et al.(1990). Evaluation was based on pocket formation around the head, inflammation of surrounding tissue at subperiosteal implants, implant mobility, resorption of alveolar bone around subperiosteal implants and frame exposure. These were comprehensively assessed, and the results were categorized into four grades(Grade 1-4). The feeling of satisfaction with the treatment was also evaluated.
Results
In comprehensive assessment,12 cases were categorized as Grade 1, three as Grade 2, two as Grade 3 and one as Grade 4. On examining the feeling of satisfaction, one patient expressed dissatisfaction but did not desire to have the implants removed.
Conclusion
The total ratio of Grades 1 and 2, clinically judged as “excellent” and “good” respectively, amounted to 83.3%. Of the 18 patients including the case of implant-removal,16(88.9%) were found generally satisfied with the treatment. This result almost agreed with the result of comprehensive assessment.
