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Effect of polymerization techniques on vertical dimension and tooth position in complete dentures
Thiago V S Slaviero1, Gabriel H P Simon, Ivânio Tagliari
1Dental School, Western Paraná University, Cascavel, PR, Brazil.
Acta Odontologica Latinoamericana : AOL
|December 15, 2011
Summary
Comparing conventional and microwave polymerization for dentures, this study found no significant difference in maintaining the vertical dimension or tooth positioning. Both methods ensure similar stability for artificial teeth in total dentures.
Area of Science:
- Dental Materials Science
- Prosthodontics
Background:
- Acrylic resins are widely used in fabricating complete dentures.
- Changes in resin composition and processing can affect denture stability.
- Evaluating polymerization methods is crucial for predictable outcomes in complete dentures.
Purpose of the Study:
- To assess the impact of different polymerization techniques on the dimensional stability of complete dentures.
- To compare the effects of conventional hot water bath polymerization versus microwave polymerization on occlusal vertical dimension and artificial tooth positioning.
Main Methods:
- Sixty-four specimens simulating maxillary complete dentures were fabricated.
- Specimens were divided into two groups: hot water bath polymerization and microwave polymerization.
- Horizontal and vertical measurements were taken before and after polymerization.
Main Results:
- No statistically significant differences were observed between the two polymerization methods.
- Both conventional and microwave polymerization maintained the occlusal vertical dimension effectively.
- The horizontal positioning of artificial teeth remained stable regardless of the polymerization method used.
Conclusions:
- Microwave polymerization is a viable alternative to conventional hot water bath polymerization for complete dentures.
- Both methods provide comparable dimensional stability, ensuring reliable occlusal vertical dimension and artificial tooth positioning.
- Clinicians can consider microwave polymerization as an efficient method without compromising denture stability.
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