Oral and maxillofacial surgery · 2025
Influence of crown-implant ratio on photofuntcionalized short implants success rates: 5 year follow-up prospective study.
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СтатьяОтозванная публикацияНазвание и аннотация: Перевод пока не подготовлен
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Ghambaryan Naira, Bollen Curd, Hakobyan Gagik
Аннотация
OBJECTIVE: To evaluate the influence of crown-to-implant ratio(C/I) on marginal bone level changes and survival rate of implants during function.
METHODS: The study included 68 patients with completely or partial edentulous and severe vertical bone atrophy, which were restored with a single crown(46) or a partial fixed(48) denture supported by 152 short implants. Implants were divided into three groups according to the C/I ratio (1.5:1, 1,75:1, 2:1). The results were evaluated: failures of the implant, any complications, implants marginal bone loss (MBL), implants success rates the follow up for 5 years. MBL was assessed by taking x-rays after restoration fixation, after 1,3,5 years post operatively.
RESULTS: During implantation and in the post-implantation period, no serious biological or prosthetic complications were recorded. After 1 years in Group 1 mean MBL 0.86 ± 0.4 mm, after 3 years 0,98 ± 0.2 mm), after 5 years 1.05 ± 0.3 mm. After 1 years in Group 2 mean MBL 0.97 ± 0.3 mm, after 3 years 1,07 ± 0.4 mm), after 5 years MBL was 1.12 ± 0.6 mm.Аfter 1 years in Group 3 mean MBL 1,08 ± 0.6 mm, after 3 years 1,19 ± 0.2 mm, after 5 years MBL was 1.27 ± 0.3 mm. Short implants cumulative success of implantation after 5 years was 97.8% for group 1, 97.6% for group 2, and 97.3% for group 3. Patients were satisfied with the results of treatment.
CONCLUSIONS: The study showed that different C/I ratios of short implants did not affect the survival rate and their use can be considered favorable and completely justified.
CLINICAL TRIAL NUMBER: Not applicable.
METHODS: The study included 68 patients with completely or partial edentulous and severe vertical bone atrophy, which were restored with a single crown(46) or a partial fixed(48) denture supported by 152 short implants. Implants were divided into three groups according to the C/I ratio (1.5:1, 1,75:1, 2:1). The results were evaluated: failures of the implant, any complications, implants marginal bone loss (MBL), implants success rates the follow up for 5 years. MBL was assessed by taking x-rays after restoration fixation, after 1,3,5 years post operatively.
RESULTS: During implantation and in the post-implantation period, no serious biological or prosthetic complications were recorded. After 1 years in Group 1 mean MBL 0.86 ± 0.4 mm, after 3 years 0,98 ± 0.2 mm), after 5 years 1.05 ± 0.3 mm. After 1 years in Group 2 mean MBL 0.97 ± 0.3 mm, after 3 years 1,07 ± 0.4 mm), after 5 years MBL was 1.12 ± 0.6 mm.Аfter 1 years in Group 3 mean MBL 1,08 ± 0.6 mm, after 3 years 1,19 ± 0.2 mm, after 5 years MBL was 1.27 ± 0.3 mm. Short implants cumulative success of implantation after 5 years was 97.8% for group 1, 97.6% for group 2, and 97.3% for group 3. Patients were satisfied with the results of treatment.
CONCLUSIONS: The study showed that different C/I ratios of short implants did not affect the survival rate and their use can be considered favorable and completely justified.
CLINICAL TRIAL NUMBER: Not applicable.