Complete Dentures Evaluation Constructed by Two Impression Techniques for Diabetics

Objectives: There has been considerable debate over the desired amount of pressure and resultant tissue displacement that is required for complete denture impressions. Diabetes mellitus is one of the most important chronic diseases in complete denture wearers. Methods: This study had carried out in the outpatient clinic in faculty of dentistry, Tanta University on twenty completely edentulous diabetic patients, classified into two equal groups. Minimal impression technique had used for the first group while selective pressure impression technique was used for the second group. The patients evaluated at the time of insertion, after three months and after nine months as regards Constancy of occlusal vertical dimension, the biting forces, wear of occlusal surfaces of acrylic teeth and the alveolar bone resorption under the lower dentures. The results statistically analyzed using paired t test. Results: The study revealed non-significant difference in the occlusal vertical dimension between the dentures constructed by both techniques after three or nine months. There was a significant difference in the biting force between both techniques after three and nine months. The study showed significant difference between the two techniques as regards to the acrylic wear after three and nine months. There was a significant difference in the alveolar bone resorption between both techniques at thee and nine months. Conclusion: The minimal pressure impression technique is better than the selective pressure impression technique as regards to the alveolar bone resorption, the acrylic wear, and the biting force while there was a minimal difference between both techniques as regards to the constancy of the occlusal vertical dimension