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[Comparative testing of various resins for model dies]
Schweizerische Monatsschrift Fur Zahnheilkunde = Revue Mensuelle Suisse D'Odonto-Stomatologie
|May 1, 1977
Summary
Epoxy and epimine resins can be effective dental die materials with proper handling. Centrifugation, accounting for contraction, and avoiding hydrocolloid impressions are crucial for successful use.
Area of Science:
- Materials Science
- Dental Technology
Background:
- The suitability of resin-based materials for dental model dies remains a subject of debate.
- Traditional die materials have limitations that necessitate exploration of alternatives.
Purpose of the Study:
- To objectively evaluate the efficacy of epoxy and epimine resins as dental die materials.
- To identify critical procedural steps for successful resin die fabrication.
Main Methods:
- Investigated the use of epoxy and epimine resins for dental model dies.
- Assessed the impact of specific handling techniques, including centrifugation and accounting for material contraction.
- Examined the effect of impression material on resin polymerization.
Main Results:
- Epoxy and epimine resins can be successfully utilized as die materials.
- Precautionary measures such as centrifugation and calculating material contraction are essential.
- Pouring resin into hydrocolloid impressions hinders proper polymerization due to moisture interference.
- Air bubble formation on preparation angles is a common challenge, even with vibrator use.
Conclusions:
- Epoxy and epimine resins are viable dental die materials when specific protocols are followed.
- Careful material handling and impression selection are key to overcoming limitations.
- Further refinement in technique may be needed to mitigate air bubble formation.