{"title":"Influence of crown-implant ratio on photofuntcionalized short implants success rates: 5 year follow-up prospective study.","authors":"Naira Ghambaryan, Curd Bollen, Gagik Hakobyan","doi":"10.1007/s10006-025-01395-7","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the influence of crown-to-implant ratio(C/I) on marginal bone level changes and survival rate of implants during function.</p><p><strong>Methods: </strong>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.</p><p><strong>Results: </strong>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.</p><p><strong>Conclusions: </strong>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.</p><p><strong>Clinical trial number: </strong>Not applicable.</p>","PeriodicalId":47251,"journal":{"name":"Oral and Maxillofacial Surgery-Heidelberg","volume":"29 1","pages":"100"},"PeriodicalIF":1.7000,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Oral and Maxillofacial Surgery-Heidelberg","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s10006-025-01395-7","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
引用次数: 0
Abstract
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.
期刊介绍：
Oral & Maxillofacial Surgery founded as Mund-, Kiefer- und Gesichtschirurgie is a peer-reviewed online journal. It is designed for clinicians as well as researchers.The quarterly journal offers comprehensive coverage of new techniques, important developments and innovative ideas in oral and maxillofacial surgery and interdisciplinary aspects of cranial, facial and oral diseases and their management. The journal publishes papers of the highest scientific merit and widest possible scope on work in oral and maxillofacial surgery as well as supporting specialties. Practice-oriented articles help improve the methods used in oral and maxillofacial surgery.Every aspect of oral and maxillofacial surgery is fully covered through a range of invited review articles, clinical and research articles, technical notes, abstracts, and case reports. Specific topics are: aesthetic facial surgery, clinical pathology, computer-assisted surgery, congenital and craniofacial deformities, dentoalveolar surgery, head and neck oncology, implant dentistry, oral medicine, orthognathic surgery, reconstructive surgery, skull base surgery, TMJ and trauma.Time-limited reviewing and electronic processing allow to publish articles as fast as possible. Accepted articles are rapidly accessible online.Clinical studies submitted for publication have to include a declaration that they have been approved by an ethical committee according to the World Medical Association Declaration of Helsinki 1964 (last amendment during the 52nd World Medical Association General Assembly, Edinburgh, Scotland, October 2000). Experimental animal studies have to be carried out according to the principles of laboratory animal care (NIH publication No 86-23, revised 1985).
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