View clinical trials related to Edentulous Maxilla.
Filter by:The principal aim of the study is to evaluate the prosthetic complications with CAD-CAM fabricated provisional prostheses and denture conversion prostheses after 3 months of function. Supported restorations are now a predictable treatment modality for the rehabilitation of complete and partially edentulous jaws.Immediate loading of the placed implants is performed for the rehabilitation of the edentulous arch to improve patients' function. This can be usually done by converting the existing denture base of the patient or by making a CAD- CAM milled provisional prosthesis integrating digital workflow. A laboratory fabricated denture base can be converted into a screw-retained provisional prosthesis post implant placement. This is known as conversion prosthesis. However, drawbacks of these prostheses include increased chairside time for the clinician leading to inconvenience for the patient and a potential for an error in prosthesis fabrication. With the introduction of CAD-CAM technology, it is now possible to fabricate a provisional restoration using digital workflows. This workflow would help the clinicians save a considerable amount of chairside time and obtain potentially stronger restorations better polished and without contamination of surgical field. Studies assessing the soft tissue response and patient-reported outcome measures between denture conversion and CAD- CAM fabricated provisionals are currently lacking in the literature.
The aim of this pilot study was to assess survival rates and peri-implant bone loss of two narrow-diameter titanium-zirconium implants supporting maxillary and mandibular overdentures during an observation time of 3 years. The masticatory performance, self-reported chewing ability and change of oral health impact profile (OHIP) after rehabilitation were also investigated.
The aims of this clinical study conducted at a dental specialty clinic in Drammen, Norway are to assess the clinical outcomes of patients with an edentate upper jaw having been treated with a removable full prosthesis supported by 3 implants to restore function and aesthetics. Clinical variables beyond implant dimensions and intraoral location, such as recall routines, maintenance needs, patient satisfaction and quality of life, will also be appraised and contrasted with an aim to elucidate their association with clinical outcomes. Specific evaluation will be done with regard to the following outcome criteria: - crestal bone levels and periodontal conditions around implants - incidence rates of biological, technical, traumatic failures / complications related to implants - incidence rates of biological, technical, mechanical, esthetic failures/complications with prosthesis and prosthetic components A secondary objective is to identify the different risk factors for biological failures / complications, including the influence of medical conditions and tobacco use.
Study to assess the performance of six short implants (ANKYLOS C/X 6.6 mm) in the edentulous maxilla supporting fixed full-arch bridges after 5 years in function.
The primary objective of the present study is to evaluate the marginal bone level changes occurring in total edentulous patients treated with six or four implants. Secondary objective - overall survival rate - soft tissue status by assessment of bleeding on probing (BoP) and probing pocket depth (PPD) at baseline and after 1,3,5 years - prosthetic survival rates including screw or abutment loosening, framework or veneer fractures
Dental implants are used for replacing missing teeth. Placing dental implants is limited by the presence of adequate bone volume permitting their anchorage. In order to solve this problem several bone augmentation procedures have been developed. In principle the missing bone is taken from a donor site (for example the hip), transplanted where needed and then implants are placed. Sometimes, major bone grafting operations have to be undertaken under general anaesthesia requiring patients to be hospitalised for a few days. Some degree of morbidity related to the donor site must be expected, though more recently bone substitutes are used to minimize morbidity, and 2 to 3 surgical interventions may be needed before the implants can be functionally used. Sometimes patients have to wait more than 1 year before a prosthesis can be fixed to the implants and the total cost of the treatment is high. At the beginning of the 1990s a long screwshaped implant was developed by Professor PI Brånemark as an alternative to bone augmentation procedures: the zygomatic implant. Zygomatic implants are generally inserted through the palate to engage the body of the cheek bone. One to three zygomatic implants can be inserted through the posterior palate to engage the body of each cheek bone. The potential main advantages of zygomatic implants could be that bone grafting may not be needed and a fixed prosthesis could be fitted the same day of their placement. Despite that zygomatic implants have been used for more than 20 years, their effectiveness has never been compared with conventional dental implants in augmented maxillae. The aim of the project is to compare the longtermclinical outcome of fullarch upper jaw bridges supported by zygomatic implants versus conventional implants placed in augmented bone in the palate.