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Updated: May 13, 2026

An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
Published on: February 10, 2014
A method of impressing flabby ridge.
1Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine. National Research Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Oral Bioengineering Lab, Shanghai Research Institute of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai 200011, PR China.
This study presents a new dental impression technique for edentulous patients with flabby ridges. The modified tray and material application overcome challenges in capturing accurate details of displaceable tissues.
Area of Science:
- Dentistry
- Prosthodontics
- Dental Materials
Background:
- Flabby ridges in edentulous patients pose challenges for accurate dental impressions.
- Traditional methods often compress excessive, displaceable soft tissues, leading to inaccuracies.
Purpose of the Study:
- To present a modified impression method for achieving accurate impressions in edentulous patients with flabby ridges.
- To address the limitations of traditional impression techniques in managing displaceable tissues.
Main Methods:
- Modification of a stock tray with holes (5 mm diameter) over the flabby ridge area.
- Primary impression using softened impression compound on the modified tray, avoiding direct contact with the flabby ridge.
- Final accurate impression utilizing light-body polyvinyl siloxane material.
Main Results:
- The modified tray and technique effectively managed the displaceable flabby ridge tissue.
- Accurate impressions were obtained, overcoming the compression issues of traditional methods.
- The technique facilitated better prosthetic fit and patient outcomes.
Conclusions:
- The presented modified impression technique is effective for edentulous patients with flabby ridges.
- This method improves impression accuracy by preventing compression of displaceable tissues.
- It offers a viable solution for challenging prosthetic cases in clinical dental practice.
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