Radiographic Evaluation of Alveolar Bone Level around “FanYim” Implant-Retained Mandibular Overdentures in the Royal Dental Implant Project
Objective: To evaluate alveolar bone level around “FanYim” implant - retained mandibular overdentures in the Royal dental implant project.
Materials and methods: Panoramic radiographs of the patients who participated the Royal dental implant project, from October 2008-2011, at the Faculty of Dentistry, Chiang Mai university were collected. The observers measured the level of the alveolar bone loss around the implant on the radiographs, taken at different times: 1 wk, 3 mos, 5-6 mos (1 wk after ball attachment placement), 12 mos and 18 mos, after implant placement. The averages of the alveolar bone loss measured at the different times erent times were compared. The average of the alveolar bone loss after 1 yr implant placement was evaluated.
Results: From fifty-one patients, only twenty-six (18 male, 8 female, average age = 67.27 yrs) had radiographic data that can be brought to analyze, and there was no data of the radiograph taken at 18 mos in the study period. It was found that the alveolar bone loss was increased over the one year period, and the bone loss occurred maximally during the 3 to 5-6 mos after implant placement. The average of the alveolar bone loss one year after implant placement was 1.50±0.61 mm and there were no cases with peri-implant radiolucency.
Conclusions: The average of the alveolar bone loss was 1.50 mm after 1 yr of delayed loading “FanYim” implant - retained mandibular overdentures with ball attachment system. This value of 1.50 mm was clinically acceptable. However, long term follow-up with other clinical indices evaluation should be performed to assess the success of this kind of dental implant.
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