Language：English   Publishing type：Research paper (scientific journal)   Publisher：Journal of Oral Rehabilitation  

Background: Masseter muscle activity during wakefulness may be associated with temporomandibular disorder (TMD)-related symptoms, psychosocial status and pain-related disability; however, this relationship is unclear. Objectives: This study aimed to determine the relationship between masseter muscle electromyography (EMG) burst/duration during wakefulness and TMD-related symptoms, psychosocial status and pain-related disability. Methods: Sixty participants were assessed masseter muscle activity during wakefulness using a data-logger-type ultraminiature EMG system and TMD-related symptoms, psychosocial status and pain-related disability through Axis I and II of the diagnostic criteria for TMD (DC/TMD). EMG bursts lasting longer than 0.25 s but less than 2.0 s and those lasting longer than 2.0 s were classified as phasic and tonic bursts, respectively. Results: Participants with palpation-related pain in the temporalis and masseter muscles, as assessed through the DC/TMD examination form in Axis I, had more bursts (number/h) (p =.035 and p =.009, respectively) and longer duration (time/h) (p =.013 and p =.004, respectively) of tonic bursts of the masseter muscle during wakefulness. Participants with palpation-related pain in the masseter muscles had higher oral behaviour scores during wakefulness using Axis II (p =.001), which affected the number and duration of tonic bursts of the masseter muscle activity during wakefulness (p =.011 and p =.007, respectively). Conclusion: As tonic bursts mainly reflect clenching, individuals with pain in the masseter muscles by palpation may have a high frequency and longer duration of clenching, as well as a high frequency of oral behaviours during wakefulness.

DOI： 10.1111/joor.13617

Scopus

PubMed

Language：Japanese   Publisher：九州矯正歯科学会  

近年,歯科矯正用アンカースクリューを用いた治療により,矯正歯科治療方法の選択肢が広がっている.我々は,上下顎前突症例のマルチブラケット装置による治療において,歯科矯正用アンカースクリューを用いて上下顎歯列の遠心移動を行い,非抜歯による治療で良好な結果が得られたため報告する.患者は初診時年齢が24歳3ヵ月の女性で,主訴は上顎前歯が出ていることと下顎前歯部の叢生であった.上下顎前突の改善のために,歯科矯正用アンカースクリューによる上下顎歯列の遠心移動を行った.動的治療期間は1年6ヵ月で上顎歯列は約3.5mm遠心移動,下顎歯列は約2.5mm遠心移動した.保定2年後も概ね良好な咬合を維持している.(著者抄録)

Language：Japanese   Publisher：(公社)日本矯正歯科学会  

上顎前歯の突出,口唇閉鎖不全および前歯部の咀嚼障害を主訴に来院した初診時年齢16歳5ヵ月の女性にマルチブラケット装置による矯正歯科治療を行い,良好な治療結果を得たので報告する.患者は過大なoverjetを伴う骨格性II級を呈していた.口蓋正中に歯科矯正用アンカースクリューを植立し,上顎両側第一小臼歯を抜去して,前歯の圧下を伴う後方移動を行った.上顎前歯の移動量は大きかったが,歯根吸収はわずかであった.保定開始から2年6ヵ月が経過し,機能的にも良好な咬合が獲得された.(著者抄録)

Language：Japanese   Publishing type：Research paper (scientific journal)  

Language：English   Publishing type：Research paper (scientific journal)  

Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

Event date： 2024.8

Language：Japanese  

Venue：鹿児島  

Event date： 2024.1

Language：Japanese   Presentation type：Poster presentation  

Venue：鹿児島   Country：Japan  

Event date： 2023.11

Language：Japanese   Presentation type：Poster presentation  

Event date： 2022.10

Presentation type：Oral presentation (general)  

Venue：大阪  

Event date： 2022.1

Language：Japanese   Presentation type：Oral presentation (general)