Development and Reliability of Intraoral Appliance for Diagnosis and Control of Bruxism

이갈이 진단 및 조절용 구내장치의 개발과 신뢰도 조사

  • Kim, Seung-Won (Department of Oral Medicine College of Dentistry and Medical Laser Research Center Dankook University) ;
  • Kim, Mee-Eun (Department of Oral Medicine College of Dentistry and Medical Laser Research Center Dankook University) ;
  • Kim, Ki-Suk (Department of Oral Medicine College of Dentistry and Medical Laser Research Center Dankook University)
  • 김성원 (단국대학교 치과대학 구강내과학교실.의학레이저연구소) ;
  • 김미은 (단국대학교 치과대학 구강내과학교실.의학레이저연구소) ;
  • 김기석 (단국대학교 치과대학 구강내과학교실.의학레이저연구소)
  • Published : 2005.03.30


The purposes of this study were to develop and introduce a novel intraoral appliance for bruxism composed of power switch and biofeedback device and further to examine inter- and intra-reliability of the appliance prior to clinical tests. The newly-developed appliance consisted of detection sensors, a central processing unit (CPU), a reactor and a storage unit and a displayer. Compact-sized, waterproof switches were selected as bruxism detection sensor and any sensor activation by clenching or grinding event was processed at the CPU and transmitted, by radio wave, to the reactor and storage unit and triggered auditory or vibratory signal, subsequently producing biofeedback to the patient with bruxism. The data on bruxing event in the storage unit can be displayed on the computer, making it possible analyzing frequency, duration and nature of bruxism. Cast models were obtained from ten volunteers with normal occlusion to evaluate reliability of the appliances. For inter-operator reliability on the intraoral appliances, each operator of the two fabricated the appliance for the same subject and compared the minimal contact forces provoking auditory biofeedback reaction in vertical, lateral and central directions. Intra-operator reliability was also investigated on the appliances made by a single operator at two separate times with an interval of two days. Conclusively, the newly-developed appliance is compact and safe to use in oral circumstance and easy to make. Furthermore, it had to be proven reliability excellent enough to apply in clinical settings. Thus, it is assumed that this appliance with the processor and the storage of data and auditory or vibratory biofeedback function is available and useful to analyze and control bruxism.


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