- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00066014
Clinical Investigation of Mandibular Implant Overdenture
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
This project utilizes 30 subjects in a prospective, randomly assigned clinical study that uses a four-period, six sequence, three treatment crossover design to test the hypothesis that defined outcomes of variable implant overdenture treatments are equivalent. The project tests three overdenture treatment modalities, (1) four-implant, bar/clip-attached treatment, (2) two-implant, bar/clip-attached treatment, and (3) two-implant independently attached (O-ring) treatment. Each subject has four dental implants placed into the anterior mandible and new dentures are fabricated. After successful implant integration, subjects are randomly assigned to one of six sequences of treatment. Each treatment is followed for data collection for at least twelve months before the mandibular denture is modified to incorporate the next treatment in the sequence. Equivalence is measured in terms of prosthesis retention, stability, supporting and peri-implant tissue response, patient satisfaction/preference and treatment complications/failures.
Information from this study will assist dental practitioners during treatment planning in selecting appropriate and cost effective treatment choices. There is an inverse relationship between edentulism in the U.S. population and socioeconomic status. If less costly and simplified treatment methods are shown to provide an equivalent treatment outcome to more costly/complex methods, these simplified treatments can be used to treat a larger percentage of the edentulous population.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
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Virginia
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Richmond,, Virginia, United States, 23298
- Virginia Commonwealth University
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion:
- Adult patient;
- Male or female;
- At least one year of previous conventional complete denture treatment history;
- Willing to accept the conditions of the study and informed consent freely given;
- Ability to participate for 6 years;
- Able to understand and respond to self-reporting measurement scales used in the study;
- Minimum 20-mm interarch distance at the estimated vertical dimension of occlusion;
- Adequate bone quality;
- Adequate bone quantity to accommodate minimally four 3.75-mm diameter by 7-mm long Brånemark implants.
Exclusion:
- Administrative or physical considerations which would seriously affect the surgical procedure or construe a hindrance for a six-year involvement;
- History of drug or alcohol abuse;
- Excessive smoking (1+ pack/day);
- Uncontrolled systemic disease;
- Inability to undergo minor oral surgery because of health or personal reasons;
- Irradiated surgical site;
- Unrealistic expectations of the prosthodontic treatment outcome;
- Psychological or psychiatric conditions that could influence the subject's reaction to treatment;
- Acute or chronic TMD problems;
- pregnancy;
- Class II jaw relationship;
- Conventional dental treatment the treatment of choice.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: treatment modalities changed for comparison
All subjects experienced all treatment modalities being studied.
|
All overdenture treatment modalities were provided to each subject using a crossover design.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Comparison of implant overdenture clinical modalities using clinical measures to compare treatment outcomes
Time Frame: 6 month and 12 month
|
6 month and 12 month
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: David R Burns, Virginia Commonwealth University
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- NIDCR-12204
- R01DE012204 (U.S. NIH Grant/Contract)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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