Affiliation:
1. Periodontology Unit, School of Medicine and Dentistry University of Santiago de Compostela Santiago de Compostela Spain
2. Medical‐Surgical Odontology (OMEQUI) Research Group Health Research Institute of Santiago de Compostela (IDIS) Santiago de Compostela Spain
3. Lab Technician Oral Design Lugo Spain
Abstract
AbstractObjectiveTo compare marginal changes at bone‐level implants restored with screw‐retained implant prosthesis with or without intermediate standardised abutments, after 1 year of follow‐up.Materials and MethodsThirty‐six partially edentulous patients received 72 implants. Each patient received 2 implants and a 2‐ to 4‐unit screw‐retained implant‐prosthesis. The test group received implants consisting of a screw‐retained prosthesis connected directly to the implant shoulder, while the prostheses in the control group were connected through a 3‐mm standardised intermediate abutment. Clinical and radiological data were recorded at baseline and at 3, 6 and 12 months in follow‐up visits.ResultsAt 12 months, the marginal bone loss was 0.17 ± 0.24 mm for the test group (19 patients) and 0.09 ± 0.15 mm for the control group (17 patients), with no statistically significant differences (p > .05). The mean probing pocket depth was 2.96 mm ± 0.46 for the test group and 2.86 ± 0.62 mm for the control group. The test and control groups showed bleeding on probing levels of 18.86 ± 14.12% and 13.73 ± 17.66%, respectively. All patients scored below 25% on the plaque index levels.ConclusionsRestoration of bone‐level implants with fixed screw‐retained partial prostheses with or without intermediate abutments presented similar radiographic and clinical outcomes after 1 year.