Effect of crown-to-implant ratio on the marginal bone level changes and implant survival – A systematic review and meta-analysis
The purpose of the systematic review and meta-analysis was to analyze the existing evidence regarding the effect of crown-to-implant ratio (CIR) on the peri-implant crestal bone level change and implant survival. Randomized controlled clinical trials, prospective as well as retrospective studies wit...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-10-01
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| Series: | Journal of Oral Biology and Craniofacial Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212426820301469 |
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| author | Ninad Milind Padhye Tabrez Lakha Nadja Naenni Mohit Kheur |
| author_facet | Ninad Milind Padhye Tabrez Lakha Nadja Naenni Mohit Kheur |
| author_sort | Ninad Milind Padhye |
| collection | DOAJ |
| description | The purpose of the systematic review and meta-analysis was to analyze the existing evidence regarding the effect of crown-to-implant ratio (CIR) on the peri-implant crestal bone level change and implant survival. Randomized controlled clinical trials, prospective as well as retrospective studies with a minimum follow-up period of 12 months and 10 patients per group were included for this systematic review. Statistical analysis was performed to determine CIR effects on the peri-implant marginal bone level changes and implant survival. A total of 28 articles (14 prospective studies and 14 retrospective studies) from a database of 201 articles, with 2097 patients and 4350 implants, were included. A mean CIR ranging from 0.6 to 2.44 was presented by the study groups. A weighted mean implant loss of 0.19% per year and peri-implant marginal bone level change of 0.63 mm ± 0.55 over 46.8 ± 5.2 months was calculated from the included studies. The peri-implant marginal bone level change (p = 0.155) and the rate of implant loss (p = 0.245) showed a statistically insignificant difference between implant restorations of a high (>1.5:1) and low (<1.5:1) CIR. Within its limitations, this review concludes that a high (>1.5:1) or a low (<1.5:1) CIR does not significantly affect the peri-implant marginal bone level change and implant survival rate. However, until further evidence becomes available, extrapolation to long term clinical success cannot be ascertained. |
| format | Article |
| id | doaj-art-0c1a5b2e96fe41218dac3d02fe44432d |
| institution | DOAJ |
| issn | 2212-4268 |
| language | English |
| publishDate | 2020-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Oral Biology and Craniofacial Research |
| spelling | doaj-art-0c1a5b2e96fe41218dac3d02fe44432d2025-08-20T02:50:25ZengElsevierJournal of Oral Biology and Craniofacial Research2212-42682020-10-0110470571310.1016/j.jobcr.2020.10.002Effect of crown-to-implant ratio on the marginal bone level changes and implant survival – A systematic review and meta-analysisNinad Milind Padhye0Tabrez Lakha1Nadja Naenni2Mohit Kheur3Ceramco Dental Care, Lokhandwala Complex, Andheri, Mumbai, India; Corresponding author.Department of Fixed and Removable Prosthodontics, M.A. Rangoonwala Dental College and Research Center, Pune, IndiaSwiss Society of Reconstructive Dentistry, Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, SwitzerlandDepartment of Fixed and Removable Prosthodontics, M.A. Rangoonwala Dental College and Research Center, Pune, IndiaThe purpose of the systematic review and meta-analysis was to analyze the existing evidence regarding the effect of crown-to-implant ratio (CIR) on the peri-implant crestal bone level change and implant survival. Randomized controlled clinical trials, prospective as well as retrospective studies with a minimum follow-up period of 12 months and 10 patients per group were included for this systematic review. Statistical analysis was performed to determine CIR effects on the peri-implant marginal bone level changes and implant survival. A total of 28 articles (14 prospective studies and 14 retrospective studies) from a database of 201 articles, with 2097 patients and 4350 implants, were included. A mean CIR ranging from 0.6 to 2.44 was presented by the study groups. A weighted mean implant loss of 0.19% per year and peri-implant marginal bone level change of 0.63 mm ± 0.55 over 46.8 ± 5.2 months was calculated from the included studies. The peri-implant marginal bone level change (p = 0.155) and the rate of implant loss (p = 0.245) showed a statistically insignificant difference between implant restorations of a high (>1.5:1) and low (<1.5:1) CIR. Within its limitations, this review concludes that a high (>1.5:1) or a low (<1.5:1) CIR does not significantly affect the peri-implant marginal bone level change and implant survival rate. However, until further evidence becomes available, extrapolation to long term clinical success cannot be ascertained.http://www.sciencedirect.com/science/article/pii/S2212426820301469Bone resorptionImplant complicationsImplant failurePeri-implant crestal bone loss |
| spellingShingle | Ninad Milind Padhye Tabrez Lakha Nadja Naenni Mohit Kheur Effect of crown-to-implant ratio on the marginal bone level changes and implant survival – A systematic review and meta-analysis Journal of Oral Biology and Craniofacial Research Bone resorption Implant complications Implant failure Peri-implant crestal bone loss |
| title | Effect of crown-to-implant ratio on the marginal bone level changes and implant survival – A systematic review and meta-analysis |
| title_full | Effect of crown-to-implant ratio on the marginal bone level changes and implant survival – A systematic review and meta-analysis |
| title_fullStr | Effect of crown-to-implant ratio on the marginal bone level changes and implant survival – A systematic review and meta-analysis |
| title_full_unstemmed | Effect of crown-to-implant ratio on the marginal bone level changes and implant survival – A systematic review and meta-analysis |
| title_short | Effect of crown-to-implant ratio on the marginal bone level changes and implant survival – A systematic review and meta-analysis |
| title_sort | effect of crown to implant ratio on the marginal bone level changes and implant survival a systematic review and meta analysis |
| topic | Bone resorption Implant complications Implant failure Peri-implant crestal bone loss |
| url | http://www.sciencedirect.com/science/article/pii/S2212426820301469 |
| work_keys_str_mv | AT ninadmilindpadhye effectofcrowntoimplantratioonthemarginalbonelevelchangesandimplantsurvivalasystematicreviewandmetaanalysis AT tabrezlakha effectofcrowntoimplantratioonthemarginalbonelevelchangesandimplantsurvivalasystematicreviewandmetaanalysis AT nadjanaenni effectofcrowntoimplantratioonthemarginalbonelevelchangesandimplantsurvivalasystematicreviewandmetaanalysis AT mohitkheur effectofcrowntoimplantratioonthemarginalbonelevelchangesandimplantsurvivalasystematicreviewandmetaanalysis |