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Linear Dimensional Changes of Five Interocclusal Recording Materials When Immersed in Two Disinfectants for Different
Rajanna Kv Patel1, Sushant A Pai1, Tejavathi Nagaraj2
1Department of Prosthodontics, Sri Rajiv Gandhi College of Dental Sciences and Hospital, Bengaluru, Karnataka, India.
The Journal of Contemporary Dental Practice
|July 31, 2019
Summary
Bisacryl bite registration material showed no dimensional changes after immersion in disinfectant solutions, making it the most accurate option compared to wax, zinc oxide eugenol, polyether, and polyvinyl siloxane.
Area of Science:
- Dental materials science
- Disinfection protocols
Background:
- Accurate interocclusal records are crucial for dental prosthetics.
- Disinfectant solutions are used to prevent cross-contamination.
- Dimensional stability of recording media after disinfection is a concern.
Purpose of the Study:
- To compare the linear dimensional changes of five interocclusal recording media.
- To evaluate the effect of disinfectant immersion time on dimensional stability.
Main Methods:
- Five material types were tested: wax, zinc oxide eugenol, polyether, polyvinyl siloxane, and bisacryl.
- Samples were immersed in 2% glutaraldehyde and 0.5% sodium hypochlorite for 30 and 60 minutes.
- Linear dimensional changes were measured using a stereomicroscope and compared to a control group.
Main Results:
- Bisacryl exhibited the least linear dimensional change among all tested materials.
- Other materials showed varying degrees of dimensional alteration after disinfectant immersion.
Conclusions:
- Bisacryl (Luxabite) demonstrated superior dimensional stability, with no measurable changes.
- Bisacryl is recommended as the most accurate interocclusal recording material following disinfection procedures.
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