Extrait

Background and study aims Overdentures, also known as dental implants, are metal posts which are screwed directly into the jaw bone in order to support replacement teeth. Abutments are connectors that are placed on the top of a dental implant to connect the implant to the replacement tooth. Mini-implants have been successfully used to support complete dentures in edentulous patients (patients with no natural teeth) that have wasting (or resorption) of the bone holding the teeth (alveolar bone). The aim of this study is to see whether mini-implants with an angulated abutment (that is, an abutment placed at a different angle to the denture) is better than a non-angulated abutment (that is, an abutment placed at the same angle than the denture). Who can participate? Patients who, having responded to an advertising campaign, have no natural teeth and have ill-fitting dentures due to resorption of the alveolar bone. What does the study involve? Participants are randomly allocated to one of two groups. Those in group 1 receive a non-angulated abutment. Those in group 2 receive angulated abutment. Alveloar bone height is measured 6 mnoths after treatment and again at 12, 18 and 24 months. What are the possible benefits and risks of participating? The use of mini-implants with non-angulated abutment may provide benefits for patients such as a stable, immediately functional aesthetic for overdentures for patients with wasting of the alveolar bone. There are no reported risks to taking part. Where is the study run from? Al-Azhar University, Faculty of Dentistry (Egypt) When is the study starting and how long is it expected to run for? October 2012 to December 2014 Who is funding the study? Albaha University (Saudi Arabia) Who is the main contact? 1. Professor Khalid Arafa (scientific) 2. Dr Hashim Ahmed (public)

Critère d'inclusion

• Mini-implants used to support complete dentures in edentulous patients with little bone width or length

Liens

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• isrctn