Details

Autor(en) / Beteiligte

• Matthys, Carine
• Vervaeke, Stijn
• Besseler, Jos
• Doornewaard, Ron
• Dierens, Melissa
• De Bruyn, Hugo

Titel

Fiveyears follow‐up of mandibular 2‐implant overdentures on locator or ball abutments: Implant results, patient‐related outcome, and prosthetic aftercare

Ist Teil von

• Clinical implant dentistry and related research, 2019-10, Vol.21 (5), p.835-844

Ort / Verlag

Chichester: Wiley Subscription Services, Inc

Erscheinungsjahr

2019

Quelle

Wiley-Blackwell Journals

Beschreibungen/Notizen

• BackgroundIt is uncertain, which is the optimal attachment for a mandibular 2‐implant overdenture (2IOD).PurposeTo 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 MethodsNinety 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.ResultsFive 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.ConclusionsBalls 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.