Rehabilitation of Atrophic Maxilla using Pterygoid Implants: Case Reports
Journal Title: Modern Approaches in Dentistry and Oral Health Care - Year 2018, Vol 1, Issue 1
Abstract
Restoration of a severely atrophic jaw presents a challenge in dentistry. Bone augmentation is usually required in the posterior maxilla to enable placement of a sufficient number and length of implants to support implant prosthesis due to the poor bone quality of the posterior maxilla. The recent invention of new surgical techniques and implant systems help circumvent the current restorative problems and provide a solution to erstwhile un-rehabilitated cases. The use of pterygoid implants in the pterygo-maxillary region provides posterior bone support without sinus augmentation or supplemental grafts. This article describes a clinical procedure for the restoration of severely resorbed maxilla using a new pterygoid implant in combination with conventional or cortically fixed implant system. In the present study, the use of implants in the posterior maxilla to support a fixed prosthesis was demonstrated to be a reliable and a good alternative to distal cantilever prostheses or sinus-lifting procedures. Restoration of a severely atrophic jaw presents a challenge in dentistry. The poor bone quality of the posterior maxilla, coupled with limited vertical bone height due to sinus pneumatisation and chronic periodontitis often leaves insufficient bone for implant anchorage [1,2]. Bone augmentation is usually required to enable placement of a sufficient number and length of implants to support implant prosthesis [3,4]. Many procedures, such as onlay grafts, free or micro vascular bone grafts, transport distraction osteogenesis, and apposition grafts with or without a Le Fort I osteotomy are well documented and have success rates of between 60-90% [5-9]. These often involve invasive and lengthy surgeries, long treatment time, and some morbidity [6-8]. Furthermore, free bone grafts are commonly associated with resorption during healing [5,9]. Zygomatic Implants have been used to provide support for oral rehabilitation where there has been a substantial amount of bone loss from the upper jaw, and where ordinary dental implants are not sufficient for prosthetic support [2,10]. Still, some severe atrophic jaw cases defile these current treatment options. Continuous advances in dentistry have resulted in the invention of new surgical techniques and implant systems that circumvent the current restorative problems and provide a solution to erstwhile un-rehabilitated cases. One of such is the use of Pterygoid implants to rehabilitate posterior maxillal. Placement of implants in the pterygomaxillary region provides posterior bone support without sinus augmentation or supplemental grafts. This article describes a clinical procedure for the restoration of severely resorbed maxilla using a new terygoidimplant in combination with conventional or cortically fixed implant system.
Authors and Affiliations
Jimoh Olubanwo Agbaje, Jan Meeus, Luc Vrielinck, Henri Diederich
Keywords
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- EP ID EP594092
- DOI 10.32474/MADOHC.2018.01.000103
- Views 92
- Downloads 0
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