[Original technique for secondary impressions in complete removable dentures (CRD)]

Area of Science:

• Dentistry
• Prosthodontics
• Biomaterials

Context:

• Edentulous arches present unique challenges for dental impression taking due to varying mucosal characteristics.
• Traditional impression methods may not adequately capture the complex anatomy of the edentulous ridge.
• Understanding mucosal behavior is crucial for successful denture fabrication.

Purpose:

• To describe a two-step impression technique for edentulous arches.
• To differentiate the impression requirements for the mucosal reflexion zone and the denture base area.
• To optimize the accuracy of impressions for complete denture construction.

Summary:

• The technique involves two distinct stages using materials of differing viscosities.
• The first stage captures the border molding of the mucosal reflexions using medium-viscosity silicone on a custom tray.
• The second stage captures the static impression of the internal denture area with fluid or very fluid silicone.

Impact:

• This approach enhances the precision of dental impressions for edentulous patients.
• Improved impression accuracy leads to better-fitting and more stable complete dentures.
• The described method offers a practical solution for a common challenge in prosthodontic practice.