Modified Impression Technique to Overcome Flabby Anterior Maxillary Ridge and Severe Residual Mandibular Ridge Resorption - A Case Report

Aim : This case report was aimed to report a succeed prosthodontic treatment for flabby anterior maxillary ridge occluded with severe residual mandibular ridge resorption by using a modification of open mouth and closed mouth impression technique. Background: Full denture must remain retentive and stable in the oral cavity. A non-retentive and unstable dentures will cause the formation of excessive soft tissue (flabby ridge) on maxilla and severe ridge resoption on mandible, thus conventional impression techniques will not produce retentive and stable denture. Modification of open mouth and closed mouth impression technique will minimize the distortion of maxillary flabby ridge and prevent excessive pressure on the mandibular ridge. Case Description: This report presents the modification of open mouth impression with the dual tray technique using EVA (ethyl vinyl acetate) with stump guides on maxilla and closed mouth functional impression with rotational handle on the mandible. Conclusion: Combination of open mouth dual tray impression technique on maxilla and closed mouth functional impression technique on mandible will produce denture with maximum retention and stabilization. Clinical Significance: A combination of two different modified impression technique for flabby ridge and severe resorbed ridge was a suitable option for achieving a retentive and stable denture.