Detection of Pressure Areas for Two Elastomeric Impressions

Study Overview
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Brief Summary
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Forty completely edentulous patients were selected and randomly distributed into two groups 20 patients each.Group I received complete dentures constructed from elastomeric impression with wax spacer,group II received complete dentures constructed from elastomeric impression with no wax spacer.then on time of denture insertion pressure areas were detected using pressure indicating paste and the denture retention was detected.The results showed less pressure areas in group I and more denture retention values than group II.

Detailed Description
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This study was conducted to evaluate the significance of using wax spacer in the impression technique regarding the pressure areas and retention of the complete dentures constructed. Forty patients with edentulous maxillary arches were selected from the outpatient clinic of removable prosthodontics department, faculty of oral and dental medicine, Cairo university .The patients were randomly divided into two groups. Group I received dentures constructed from impression technique with wax spacer while group II received dentures constructed from impression technique with no spacer. On the day of denture insertion pressure areas were detected using pressure indicating paste and denture retention was measured using force gauge. The data was collected and analyzed using student's t-test.

Official Title
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Detection of Pressure Areas for Elastomeric Impressions With and Without Spacer Using Novel Digital Analyzing Software and Its Correlation With Retention.A Randomized Clinical Trial.

Conditions
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Diabetes Free Completely Edentulous Patients

Intervention / Treatment
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* Other: impression technique


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: - completely edentulous upper and lower arches. well to moderately developed ridges saliva of average viscosity and amount with normal temporomandibular joint Exclusion Criteria: diabetic patients radiation therapy signs of inflammation, ulceration or hyperplasia neurological disorders clicking or mandibular deviation.

Ages Eligible for Study
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Minimum Age: 50 Years
Maximum Age: 60 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: The measurements are done on the day of denture insertion with no follow up timing intervals
Masking: Double


Arms and Interventions

| Intervention/Treatment |
| --- |
|Other: impression technique|impression technique with and without wax spacer|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| pressure areas | pressure indicating paste on the fitting surface ,then the surface was captured then saved as JPEG format then Analysis was done using Image J software | 1month | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| denture retention | using force gauge to give retentive values in Newtons | 1 month | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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pressure area, polyether elastomeric impression, wax spacer