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Licensed Unlicensed Requires Authentication Published by De Gruyter September 15, 2010

Development of a device to simulate tooth mobility

Kurt-Jürgen Erdelt and Timea Lamper
From the journal


Objectives: The testing of new materials under simulation of oral conditions is essential in medicine. For simulation of fracture strength different simulation devices are used for test set-up. The results of these in vitro tests differ because there is no standardization of tooth mobility in simulation devices. The aim of this study is to develop a simulation device that depicts the tooth mobility curve as accurately as possible and creates reproducible and scalable mobility curves.

Materials and methods: With the aid of published literature and with the help of dentists, average forms of tooth classes were generated. Based on these tooth data, different abutment tooth shapes and different simulation devices were designed with a CAD system and were generated with a Rapid Prototyping system. Then, for all simulation devices the displacement curves were created with a universal testing machine and compared with the tooth mobility curve. With this new information, an improved adapted simulation device was constructed.

Results: A simulations device that is able to simulate the mobility curve of natural teeth with high accuracy and where mobility is reproducible and scalable was developed.

Corresponding author: Kurt-Jürgen Erdelt, Department of Prosthodontics, Ludwig Maximilians University, Goethestr. 70, 80336 Munich, Germany Phone: +49-89-5160-9600 Fax: +49-89-5160-9502

Received: 2009-11-30
Accepted: 2010-8-3
Published Online: 2010-09-15
Published Online: 2010-09-15
Published in Print: 2010-10-01

©2010 by Walter de Gruyter Berlin New York