Overview: Selecting appropriate final wash impression materials is essential for accurate denture prosthetics and successful digital workflows.
Recommended Final Wash Impression Materials
For predictable and high-quality results, Dandy requires the use of stable, high-detail materials for final wash impressions. Approved materials include:
Polyvinyl siloxane (PVS)
Polyether
Polysulfide
These specific materials offer superior dimensional stability and fine detail reproduction. Using PVS, Polyether, or Polysulfide ensures the impression remains compatible with Dandy’s digital scanning workflows.
Prohibited Impression Materials
Alginate is strictly prohibited for final wash impressions. While alginate is suitable for preliminary impressions using stock trays, alginate lacks the dimensional stability required for a well-fitting prosthesis.
Dandy does not accept alginate mail-in submissions because alginate impressions are highly susceptible to distortion during shipping. Using alginate for final impressions compromises the accuracy of the final case.
Clinical Risks of Using Incorrect Materials
Using incorrect materials like alginate during the wash step leads to significant clinical errors. These errors include:
Border Issues: Overextended borders and poor vestibular capture.
Occlusal Errors: Increased vertical dimension.
Inaccuracies: Misplaced incisal edges and bite misalignments.
Patient Impact: Poor prosthesis fit, increased patient discomfort, and costly remake delays.