Effect of T-scan Occlusal Analysis and Adjustment vs Articulating

Study Overview
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Brief Summary
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The aim of this study is to compare two different methods for occlusal analysis of implant - supported prosthesis (T-scan and conventional method with articulating papers) regarding the stresses transmitted to the implants.

Detailed Description
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Four implants will be inserted, two implants in canine regions and two implants in lower second premolar regions. After 3 months, two identical overdentures will be constructed for the patient on implants. The occlusion of each one of the two identical prostheses will be adjusted intraorally but according to different occlusal analysis: Group (A) : occlusal adjustments for the overdenture will be done according to articulating paper analysis. Group (B) :- occlusal adjustments for the overdenture will be done according to T-scan analysis. The two prostheses will be retained on dummy implants on acrylic cast and will be loaded under chewing simulator. The strain developed around the dummy implants will be measured. The data will be recorded manually then will be transferred into digital form. The obtained data will be recorded, tabulated and statistically analyzed using the appropriate tests for comparison within each group.

Official Title
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Effect of T-scan Occlusal Analysis and Adjustment vs Articulating Paper on Stresses Transmitted to Single Mandibular Implant Supported Prosthesis

Conditions
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Occlusion

Intervention / Treatment
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* Device: T-scan
* Other: articulating paper


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age range from 55-65. Radiographic examination should reveal bone height more than 10 mm and crestal bone width not less than 5 mm of the inter-foraminal region. Residual bone and mucosa should be free from any pathological signs, bony undercuts, or neoplasia. Adequate salivary flow. Adequate mouth opening. Adequate inter-arch space. Exclusion Criteria: Systemic diseases affecting metabolism of bone e.g uncontrolled diabetes, bone diseases, hyperparathyroidism and renal disease. Severe blood diseases (hemophilia etc.). Severe vascular heart disease. Liver Problems. Cerebral infarction . Severe immunodeficiency. Patients who are undergoing strong chemotherapy. Excessive alcohol consumption. Severe neuropsychiatric disease, mental disability, and narcotic drug addict Uncooperative patients

Ages Eligible for Study
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Minimum Age: 55 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Device Feasibility
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: articulating paper occlusal adjustment<br>occlusal adjustments of implant supported prosthesis according to articulating paper occlusal analysis | Other: articulating paper<br>* articulating paper occlusal analysis<br>|
| Experimental: T-scan occlusal analysis<br>occlusal adjustments of implant supported prosthesis according to T-scan occlusal analysis | Device: T-scan<br>* occlusal analysis T-scan<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| stresses around implants | stresses transmitted around implants supporting the prosthesis by stain gauge | baseline | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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t-scan, occlusal analysis, implant supported prosthesis