Carine Matthys1, Stijn Vervaeke2, Jos Besseler3, Ron Doornewaard2, Melissa Dierens4, Hugo De Bruyn2,5. 1. Clinic for Removable Prosthodontics, Faculty of Medicine and Health Sciences, Dental School, Ghent University, Ghent, Belgium. 2. Periodontics and Implantology, Department of Periodontology and Oral Implantology, Faculty of Medicine and Health Sciences, Dental School, Ghent University, Ghent, Belgium. 3. Private practitioner, Besseler Dental Clinic, Enschede, The Netherlands. 4. Periodontics and Implantology, Private practice, Ghent, Belgium. 5. Department of Dentistry- Implantology & Periodontology, Research Institute Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.
Abstract
BACKGROUND: It is uncertain, which is the optimal attachment for a mandibular 2-implant overdenture (2IOD). PURPOSE: To assess 5 years clinical implant outcome, prosthetic maintenance, cost, and PROMs of two cohorts receiving 2IOD on ball or stud abutments in a comparative study. MATERIALS AND METHODS: Ninety edentulous individuals were treated with balls (n = 34) or locator (n = 56). Implant survival, bone-to-implant level, prosthetic outcome, technical maintenance, and OHIP-14 were assessed. Statistics to compare between baseline and 1/5 years and between groups were t-test or Mann-Whitney (P < .05); chi-square was adopted to analyze plaque and technical maintenance or interventions between groups. RESULTS: Five years implant survival was 98.7%, irrespective of attachment. Overall mean bone loss was 1.1 mm, probing pocket depth 1.92 mm, bleeding score 0.60, plaque score 1. Plaque accumulated more on locators (P = .023). OHIP-14 declined from 18.1 to 2.7 irrespective of attachment. Retention for balls was better (P < .005), locators required more maintenance (P < .001), caused by retention-adjustment (P < .001) or ulcers/pain (P = .014). Five years maintenance-cost was 11% of initial cost, irrespective of attachment. CONCLUSIONS: Balls and locators yield stable 5-years implant outcome and improved Oral Health Related Quality of Life (OHRQoL). Locators required more maintenance and resulted in a lower retention. Maintenance costs are minimal but may affect OHRQoL at least for stud abutments.
BACKGROUND: It is uncertain, which is the optimal attachment for a mandibular 2-implant overdenture (2IOD). PURPOSE: To assess 5 years clinical implant outcome, prosthetic maintenance, cost, and PROMs of two cohorts receiving 2IOD on ball or stud abutments in a comparative study. MATERIALS AND METHODS: Ninety edentulous individuals were treated with balls (n = 34) or locator (n = 56). Implant survival, bone-to-implant level, prosthetic outcome, technical maintenance, and OHIP-14 were assessed. Statistics to compare between baseline and 1/5 years and between groups were t-test or Mann-Whitney (P < .05); chi-square was adopted to analyze plaque and technical maintenance or interventions between groups. RESULTS: Five years implant survival was 98.7%, irrespective of attachment. Overall mean bone loss was 1.1 mm, probing pocket depth 1.92 mm, bleeding score 0.60, plaque score 1. Plaque accumulated more on locators (P = .023). OHIP-14 declined from 18.1 to 2.7 irrespective of attachment. Retention for balls was better (P < .005), locators required more maintenance (P < .001), caused by retention-adjustment (P < .001) or ulcers/pain (P = .014). Five years maintenance-cost was 11% of initial cost, irrespective of attachment. CONCLUSIONS: Balls and locators yield stable 5-years implant outcome and improved Oral Health Related Quality of Life (OHRQoL). Locators required more maintenance and resulted in a lower retention. Maintenance costs are minimal but may affect OHRQoL at least for stud abutments.
Authors: Salwa Omar Bajunaid; Abdullah S Alshahrani; Ahad A Aldosari; Atheer N Almojel; Rehab S Alanazi; Tala M Alsulaim; Syed Rashid Habib Journal: Int J Environ Res Public Health Date: 2022-01-04 Impact factor: 3.390
Authors: Ho-Yan Duong; Andrea Roccuzzo; Alexandra Stähli; Giovanni E Salvi; Niklaus P Lang; Anton Sculean Journal: Periodontol 2000 Date: 2022-02 Impact factor: 12.239