View clinical trials related to Jaw, Edentulous.
Filter by:The purpose of the study is to evaluate ASTRA TECH Implant System, OsseoSpeed™ implants, in patients with totally edentulous upper jaws and poor bone quality and quantity, when provisional artificial teeth are attached within 24 hours. The primary objective is to investigate implant survival rate.
The purpose of this study is to evaluate survival for ASTRA TECH Implant System, OsseoSpeed™ implants following immediate loading in extraction sockets versus immediate loading in healed ridges. Patients in need of single standing implants replacing teeth in the maxilla within zone 15-25 will be included and followed for 5 years. Primary objective is implant survival rate at 12 months.
To evaluate 5-year survival, functionality and safety for OsseoSpeed™ 3.0 mm diameter implant when used for single tooth crown in positions 12, 22, 31, 32, 41 and 42. The primary hypothesis is that implant survival after 5 years is equal to what has been observed with comparable implants in current literature.
The purpose of this study is to see if OsseoSpeed™ implant 6 mm long is effective for rehabilitation of edentulism and if so, how it compares with OsseoSpeed™ implant 11 mm long. The primary hypothesis is that the alteration in bone level is equal in patients randomized to 6 mm as to patients randomized to 11 mm implants.
This is a randomized open label trial that evaluates the efficacy of an autologous platelet concentrate (APC) in pre-implantation reconstruction of maxilla. The sinus occlusion will be performed under general anaesthetic. On one side by the usual technique with hipbone transplant, the other side will be restored with APC mixed with autologous bone tissue removed from the surgery site. The side selection will be determined by the randomization.
Osseointegrated root form implants have been applied successfully in treating fully and partially edentulous patients and patients with single tooth missing. However, the success rate of osseointegrated dental implants was not as good in patients with poor bone quality. The reasons are believed that poor bone quality reduces the initial stability of dental implants and then reduces the success rate. For increasing initial stability of dental implants, some technical modifications are suggested in literature. However, due to lack of an objective method to evaluate bone quality, they are controversial. The purposes of this clinical study are to develop a standard procedure which using cutting resistance measured by Osseocare in surgery to evaluate the bone quality and to compare with the clinical experiences of oral surgeons. The objective outcome, initial stability of dental implant, is measured with Osstell. The analyzed results are also helpful for less experienced surgeons.
The amendment to Clinical Protocol 86-D-0015, clinical study of Oral Endosseous Titanium Implants in Edentulous subjects, and patients with Ectodermal Dysplasia is to allow the Investigators to determine: (1) If placement of Endosseous Titanium Implants in pre-adolescent patients (age 7 to 10) will influence the growth and development of the craniomandibular complex. (2) The final position of the implant, the ability to fabricate prosthesis. (3) Body image, diet and perceived ease of chewing selected foods. Selection of patients for participation in the study will be based on the number of congenitally missing teeth associated with Ectodermal Dysplasia. At least 16 permanent teeth must be congenitally missing. A total of 30 patients will be included. A consent to participate in this study will be obtained from each patient: 18 & older - consent signed by patient 13-17 years - consent signed by parent, assent signed by patient 7-10 years - consent by parent, assent signed by child if capable of understanding or note on chart describing procedure used to obtain the child's assent to the study