Edentulous Mouth
Conditions
Keywords
Cohort study, Edentulism, Implant overdentures, Zirconia, Prosthodontic maintenance, Dental implants
Brief summary
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.
Interventions
DEVICETwo mandibular implants
Rehabilitation with two mandibular implants and a mandibular implant overdenture supported by a computer-aided design bar
Sponsors
University of Bern
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Healthy volunteers
Yes
Inclusion criteria
* Edentulous individuals for more than one year. * Individuals with sufficient anatomical bone conditions in the interforaminal area to place implants of 4.3mm in diameter and at least 10.0mm in length without bone augmentation needs. * Written consent to participate and to attend the study and the yearly follow-ups.
Exclusion criteria
* Individuals suffered from psychiatric problems. * History of cerebrovascular or cardiovascular accident within the last six months. * Uncontrolled or insulin-dependent diabetes, immuno-compromised status, current chemotherapy, and leukocyte system diseases. * Severe systemic health conditions do not allow surgical intervention with local anesthesia. * Irradiated bone. * Severe parafunctional habits * Drugs or alcohol abuse. * Insufficient oral hygiene. * Unrealistic treatment demands. * Smokers were not excluded, but a cessation protocol was suggested before the implant treatment. * Unwillingness to participate in the study.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Implant Survival | 36 months | Number of patients with continued presence of the implant(s) during the re-examination appointments |
| Implant Success | 36 months | 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 |
| Prosthetic Survival | 36 months | Number of patients with functional presence of the denture and the bar at the follow-up moments |
| Prosthetic Success | 36 months | Number of patients with absence of any technical/mechanical complications without the need to repair the dentures (including the attachment systems) or the bars |
| Radiological evaluation | 36 months | Marginal bone loss |
| Radiological examination | 36 months | Implant bar fit |
Countries
Switzerland
Outcome results
None listed