The proposition of a new treatment protocol to prevent an accidental symptom of prosthodontic treatment for sleep bruxism patients

• Project/Area Number: 24592922
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Prosthetic dentistry
• Research Institution: Kyushu University
• Principal Investigator: KUWATSURU Rika 九州大学, 歯学研究科(研究院), 助教 (20325567)
• Co-Investigator(Kenkyū-buntansha): KOYANO Kiyoshi 九州大学, 大学院歯学研究科, 教授 (50195872) ; TSUKIYAMA Yoshihiro 九州大学, 大学院歯学研究科, 准教授 (10236870) ; 郡 英寛 九州大学, 大学病院, その他 (70589621)
• Research Collaborator: KOORI Hidehiro
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 睡眠時ブラキシズム / 補綴装置 / スプリント / プロトコール / 筋電図

Outline of Final Research Achievements

Using the occlusal splint for the sleep bruxism monitoring device, it was possible to evaluate grinding area and grinding pattern, and make the proper treatment plan for each patient. But, there was no association between the electromyographic activities of the masseter muscle during sleep and the abraded areas of the occlusal splint. However it was not able to decide the thickness and wearing period of the occlusal splint device which was suitable for the evaluation of the abrasion area of the splint.
It was easy for a patient and a dental technician to understand an abrasion range of the sprint and a burden of the abutment teeth using the evaluation result on the abrasion range of the device when explaining the design of the prosthodontic treatment for a patient.

Research Products

• [Journal Article] The effect of intermittent use of occlusal splint devices on sleep bruxism: a 4-week observation with a portable electromyographic recording device. (2015)
  • Author(s): Matsumoto H, Tsukiyama Y, Kuwatsuru R. Koyano K.
  • Journal Title: J Oral Rehabil Volume: 42(4) Pages: 251-258
  • Peer Reviewed
• [Journal Article] Comparative cross-sectional study of masticatory performance and mastication predominance for patients with missing posterior teeth. (2014)
  • Author(s): Iwashita H, Tsukiyama Y, Kori H, Kuwatsuru R, Yamasaki Y, Koyano K.
  • Journal Title: J Prosthodont Res Volume: 58 Pages: 223-229
  • NAID: 130004714106
  • Peer Reviewed