Purpose: To assess the clinical and radiographic outcomes of computer-aided designed and manufactured (CAD-CAM) zirconia bars supporting mandibular implant-retained overdentures (IODs) after a 3-year follow-up. Methods: A prospective observational single-center study involving 30 edentulous patients rehabilitated with two mandibular implants and a mandibular implant overdenture supported by a computer-aided design - computer-assisted manufacturing zirconia bar with distal extensions was performed assessing clinical and radiographic parameters.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
30
Rehabilitation with two mandibular implants and a mandibular implant overdenture supported by a computer-aided design bar
University of Bern
Bern, Switzerland
Implant Survival
Number of patients with continued presence of the implant(s) during the re-examination appointments
Time frame: 36 months
Implant Success
Number of patients with absence of persisting subjective discomfort such as pain, foreign body perception and or dysesthesia (i.e., painful sensation), absence of a recurrent peri-implant infection with suppuration, absence of implant mobility on manual palpation, absence of any continuous peri-implant radiolucency
Time frame: 36 months
Prosthetic Survival
Number of patients with functional presence of the denture and the bar at the follow-up moments
Time frame: 36 months
Prosthetic Success
Number of patients with absence of any technical/mechanical complications without the need to repair the dentures (including the attachment systems) or the bars
Time frame: 36 months
Radiological evaluation
Marginal bone loss
Time frame: 36 months
Radiological examination
Implant bar fit
Time frame: 36 months
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