Study on dental diagnosis and treatment using millimeter waves

Author

Nikawa, Yoshio ; Hoshi, Naoya ; Kawai, Keiji ; Ebisu, Shigeyuki

Author_Institution

Dept. of Electr. Eng, Kokushikan Univ., Tokyo, Japan

Volume

48

Issue

11

fYear

2000

fDate

11/1/2000 12:00:00 AM

Firstpage

1783

Lastpage

1788

Abstract

In order to diagnose dental caries noninvasively, the transmission coefficient of the dental caries is measured and compared to that of a sound tooth. It has been revealed that dental caries are significantly more lossy than a sound tooth in millimeter waves. This characteristic can be utilized as a new caries diagnosis method. This paper also presents microwave and millimeter-wave heating results for the lossy dental caries that can be used as a sterilization treatment. Temperature-distribution results from microwave power heating have revealed that dental caries are easily heated. Furthermore, the results of the calculated specific absorption rate distribution using the finite-difference time-domain method indicate the possibility of caries treatment by millimeter-wave heating. It is concluded that millimeter waves can be used for dental medical diagnosis and treatment.

Keywords

dentistry; finite difference time-domain analysis; hyperthermia; microwave heating; millimetre waves; patient diagnosis; temperature distribution; calculated specific absorption rate distribution; dental diagnosis; dental treatment; lossy dental caries; millimeter-wave heating; noninvasive diagnosis; sound tooth; Dentistry; Electromagnetic heating; Finite difference methods; Heat treatment; Medical diagnosis; Medical treatment; Millimeter wave measurements; Millimeter wave technology; Teeth; Time domain analysis;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.883854

Filename

883854