Chewing simulator, which can partly mimic the motion of chewing motion of human, has been successfully developed. The purpose of its development was to make a new machine which can anticipate the clinical results of restoration in the human teeth more accurately in vitro condition It is composed of 4 major parts; chewing part, motor part, water bath, controlling part. The controlling part control the chewing force, frequency, the temperature and running time of water. Additionally, the actual chewing force and remaining time is shown in the monitor of controlling part. At present, the chewing cycle is composed depending on the pre-published data of foreign people. Long term clinical data should be additionally collected for the simulator to mimic the clinical results more accurately.
4. Delong R, Peterson R, Douglas WH. A laser profiling system for measuring wear of dental materials. J Dent Res. 1989;68: 907. Abstr 328.
5. Krejci I, Reich T, Lutz F, Albertoni M. In vitro-Testverfahren zur Evaluation dentaler Restorationssysteme. Schweiz Monatsschr Zahnmed. 1990;100: 953-960.PubMed
7. Atmaram GH, Mohammed H. Estimation of physiologic stressed with a natural tooth considering fibrous PDL structure. J Dent Res. 1981;60: 873-877.ArticlePubMedPDF
8. Graber G. Gnathologie. Zahntechnik (Zur). 1981;39: 427-446.PubMed
9. DeLong R, Douglas WH. Development of an artificial oral environment for testing of dental restoratives: Biaxial force and movement control. J Dent Res. 1983;62: 32-36.ArticlePubMedPDF
10. Anderson PJ. Measurement of stress in mastication I. J Dent Res. 1956;35: 664-670.ArticlePubMedPDF
11. Bates JF, Stafford GD, Harrison A. Masticatory function--A review of the literature II. Speed of movement of the mandibule, rate of chewing and forces developed in chewing. J Oral Rehabil. 1975;2: 349-361.PubMed
12. Jemt T, Karlsson S, Hedegard B. Mandibular movement of young adults recorded by intraorally placed light emitting diodes. J Prosthet Dent. 1979;42: 669-673.PubMed
13. Uhlig H. Uber die Kaukraft. Dtsch Zahnarztl Z. 1953;8: 30-45.PubMed
14. Schreiber S. Ein neues Gerät zur Messung und Registrierung von Kaukräfteen. Zahnarztl Rundsch. 1957;66: 127-131.
15. Kraft E. Uber die Bedeuting der Kaukraft für das Kaugeschehen. Zahnarztl Prax. 1962;13: 129-130.
16. Eichner K. Messung der Krafte bei Kauvorgängen. Dtsch Zahnarztl Z. 1963;18: 915-924.
17. Graf H, Grassl H, Aeberhard H-J. A method for measurement of occlusal forces in three directions. Helv Odontol Acta. 1974;35: 7-11.
18. De Boever JA, McCall WD Jr, Holden S, Ash MM. Functional Occlusal force: An investigation by telemetry. J Prosthet Dent. 1978;40: 326-333.PubMed
19. Helkimo E, Ingervall B. Bite force and functional state of the masticatory system in young men. Swed Dent J. 1978;2: 167-175.PubMed
20. Graber , Pfondler . Die Quintessenz einer praxisbezogenen Kronen-und Brückenprothetik. 1980;Berlin: Quintessenz; 25-27.
21. Gibbs CH, Mahan PE, Lundeen HC, Brehnen K, Walsh EK, Holbrook WB. Occlusal force during chewing and swallowing as measured by sound transmission. J Prosthet Dent. 1981;46: 443-449.PubMed
22. Schwickerath H, Coca I. Einzelkronen aus Glaskeramic. Phillip J. 1987;4: 336-338.
23. Krejci I, Lutz F. In vitro Testverfahren zur Evaluation Dentalaler Restaurationssysteme. Korrelation mit In Vivo Resultaten. Schweiz Monatsschr Zahnmed. 1990;100: 1445-1449.PubMed
Fig. 1
Chewing simulator, front view
Fig. 2
Chewing simulator, front view of chamber part and position control table