Association of Occlusal Force Distribution and Bone Resorption in Implant Supported Overdentures
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- University of Malaya
- Enrollment
- 46
- Primary Endpoint
- Residual ridge resorption
Study Overview
Brief Summary
To investigate the residual ridge resorption at anterior and posterior maxillary and posterior mandibular ridges among conventional complete dentures and implant overdenture wearers, and determine its association with the relative occlusal forces distribution, treatment groups and other patient variables.
Detailed Description
A total of forty-six edentulous patients participated in this clinical study divided into two groups as following; complete denture group (CD) consists of 23 patients wearing conventional complete dentures and another Implant overdenture group (IOD) consists of 23 patients wearing mandibular complete overdenture with 2 implants. Two panoramic radiographs at baseline and in a follow-up to 7 years were used to measure the ratio of bone changes between the anatomical bone area and the reference area in the maxillary and the mandibular ridges. The occlusal contacts percentage of force in maximum intercuspation anteriorly and posteriorly were recorded for both groups by using T-Scan III system.
Oral and written information in English or Malay language, regarding the study, was provided and written consent obtained before enrolment.
Study Design
- Study Type
- Interventional
- Allocation
- Non Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Basic Science
- Masking
- None
Eligibility Criteria
- Ages
- 49 Years to 89 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Patients wearing mandibular IODs opposing conventional maxillary CDs.
- •Patients wearing conventional maxillary and mandibular CDs.
- •Clearly visible anatomic landmarks of the panoramic radiography image.
Exclusion Criteria
- •Patients with a history of temporomandibular joint dysfunction.
Outcomes
Primary Outcomes
Residual ridge resorption
Time Frame: 7 years
To estimate residual ridge resorption in patients wearing implant overdentures and complete dentures using area index radiography method.
Secondary Outcomes
- Occlusal force distribution(1 year)