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Published on: July 1, 2013
Influence of different materials and techniques to transfer molding in multiple implants
Júlio C B Faria1, Fernando L G Cruz, Laís R Silva-Concílio
1Department of Restorative Dentistry, Prosthodontics Area, Dental School, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil. jbrigolini@yahoo.com.br
Acta Odontologica Latinoamericana : AOL
|August 30, 2012
Summary
Chemically activated acrylic resin (QA) showed superior transfer union in multiple implant transfer molding compared to polymerized acrylic resin (FT). Transfer techniques, united or not, yielded similar results in evaluating implant-superstructure fit.
Area of Science:
- Dental Materials Science
- Prosthodontics
- Implantology
Background:
- Accurate transfer molding is crucial for passive fit in implant-supported prostheses.
- Evaluating different materials and techniques can optimize the precision of multiple implant transfers.
Purpose of the Study:
- To compare the precision of transfer molding for multiple implants using different materials and techniques.
- To evaluate the space between implants and superstructure based on various transfer methods.
Main Methods:
- Four external hexagon implants were used in a master template and superstructure.
- Direct and indirect transfer techniques were employed, with transfers united or not.
- Chemically activated acrylic resin (QA) and polymerized acrylic resin (FT) were used for transfer union.
- Models were divided into 8 groups (n=5), and space was measured using microscopy.
Main Results:
- Chemically activated acrylic resin (QA) demonstrated superior performance in transfer union compared to polymerized acrylic resin (FT).
- No significant difference was found between techniques with united or non-united transfers.
- Specific comparisons revealed differences between certain QA and FT resin groups for transfer union.
Conclusions:
- Chemically activated acrylic resin (QA) is a more effective material for achieving precise transfer union in multiple implant cases.
- The method of uniting transfers (sectioned or not) did not significantly impact the final fit.
- Both direct and indirect transfer techniques, with or without uniting transfers, showed comparable outcomes regarding implant-superstructure space.
