Quantifying Flabby Ridge Tissue Displacement During Impression-Making for Patients With Combination Syndrome

Area of Science:

• Dentistry
• Prosthodontics
• Biomaterials

Background:

• Combination syndrome is characterized by anterior maxillary bone loss and hyperplastic tissues.
• This condition results from functional forces of the mandible on maxillary complete dentures.
• Conventional impression techniques can distort flabby tissues, leading to ill-fitting dentures.

Purpose of the Study:

• To evaluate the displacement of flabby maxillary anterior ridge tissues using various impression materials.
• To assess the impact of impression material choice on denture stability in Combination syndrome patients.

Main Methods:

• Two patients diagnosed with Combination syndrome were included in the study.
• Computer-aided design/computer-aided manufacturing (CAD/CAM) technology was employed.
• Six different impression materials were tested for making final complete denture impressions.

Main Results:

• The study quantified the degree of tissue displacement associated with each of the six impression materials.
• CAD/CAM technology provided precise measurements of tissue distortion under simulated loading conditions.

Conclusions:

• The choice of impression material significantly influences the management of flabby tissues in Combination syndrome.
• CAD/CAM technology offers a precise method for evaluating impression material performance in complete denture fabrication.