A Study of Osseotite Certain Prevail Implants Used to Support Short Fixed Bridges With Immediate Occlusal Loading.

Completed

Brief Summary: This prospective, multicenter study evaluates the performance of the Osseotite Prevail implant when to support a short fixed bridge with immediate occlusal loading, providing the patient with the use of a temporary prosthesis until the final prosthesis is made.

Study (null) hypothesis: This is an observational study in which no concurrent control group will be observed. Results of the study will be compared with the performance of other Osseotite implants from published Osseotite multicenter studies.

Detailed Description: This is a prospective, observational study in which all the patients will have implants placed and a provisional prosthesis attached within 24 hours of implant surgery. Each restorative case will consist of a posterior short span fixed bridge of four implants or less. The final prosthesis will be placed within five months or implant placement surgery. Overall success will be determined on the basis of procedural success, prosthesis success, and implant success.

Recruitment & Eligibility

Inclusion Criteria

patients of either sex and of any race, 18 years of age or older
patients for whom the decision has already been made to use dental implants for treating partial edentulism in the posterior mandible or maxilla using a short span fixed prosthesis of two to four units
patients must be physically able to tolerate conventional surgical and restorative procedures
requirements for implant placement include: at least 1mm bone will be available at the buccal and lingual aspect of the implant and at least 1mm of bone below the apex
patients must agree to return to the clinic for each study follow-up visit
requirements for prosthetic fabrication include: bone width at least 6mm and a bone height of at least 11mm

Exclusion Criteria

patients with active infection or severe inflammation in the areas intended for implant placement
patients with a >10 cigarettes / day smoking habit
patients with uncontrolled diabetes or metabolic bone disease
patients with a history of therapeutic radiation to the head
patients in need of bone grafting at the site of the intended study implant; if at the time of surgery some lateral voids need to be filled this is acceptable and does not exclude the patient from the analysis
patients who are known to be pregnant
patients with para-functional habits with evidence of severe bruxing or clenching
placement of implants into sites with less than sixteen weeks of post-extraction healing; for 3-4 unit cases one implant site may have less than sixteen weeks of healing prior to implant placement
type III or IV bone characteristics of the intended implant sites
inter-arch distance of less than 7mm (planned location of implant seating platform to the apposing occlusal landmark)

Primary Outcome Measures

Name	Time	Method
Patients With Implants Achieving Osseous Integration	1 year	Patients receiving test implant(s) will achieve integration success (implant show no signs of mobility) of the implant at the time of analysis.

Secondary Outcome Measures