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[An in vitro test procedure for evaluating dental restoration systems. 1. A computer-controlled mastication
1Abteilung für Präventivzahnmedizin, Parodontologie und Kariologie, Zahnärztliches Institut, Universität, Zürich.
Schweizer Monatsschrift Fur Zahnmedizin = Revue Mensuelle Suisse D'Odonto-Stomatologie = Rivista Mensile Svizzera Di Odontologia E Stomatologia
|January 1, 1990
Summary
A new computer-controlled chewing simulator accurately mimics oral conditions. Natural enamel cusps are essential for testing dental restorations in clinically relevant, in-vitro evaluations.
Area of Science:
- Biomaterials Science
- Dental Materials
- Mechanical Engineering
Background:
- Simulating intraoral conditions is crucial for evaluating dental restorative systems.
- Previous simulators lacked accurate replication of chewing motion and thermal changes.
- The material of opposing cusps in simulators is a critical factor for realistic wear simulation.
Purpose of the Study:
- To develop and test a computer-controlled chewing simulator capable of replicating oral wear mechanisms and temperature fluctuations.
- To determine the optimal material for opposing cusps in the simulator: metallic or natural enamel.
- To validate the simulator's performance against established literature parameters.
Main Methods:
- Development of a computer-controlled device to simulate chewing motion and thermal cycles.
- Comparative testing using metallic versus natural enamel opposing cusps.
- Evaluation of the simulator's ability to replicate chewing parameters and thermal changes.
Main Results:
- The developed chewing simulator successfully met the specified parameters for chewing motion and thermal changes.
- Testing demonstrated that natural enamel cusps are preferential for simulating realistic occlusal wear.
- The simulator's performance aligns with reported literature values for intraoral conditions.
Conclusions:
- The computer-controlled chewing simulator is a validated tool for in-vitro dental research.
- The use of natural enamel opposing cusps is critical for accurate simulation of wear.
- This simulator will enhance the evaluation of dental restorative systems under clinically relevant conditions.