A case–control study on the effect of rhythmic masticatory muscle activity (<scp>RMMA</scp>) clusters on sleep fragmentation and severity of orofacial muscle pain in sleep bruxism

Martynowicz, Helena; Lavigne, Gilles; Kato, Takafumi; Poreba, Rafal; Michalek‐Zrabkowska, Monika; Macek, Piotr; Gac, Pawel; Wojakowska, Anna; Surowiak, Pawel; Mazur, Grzegorz; Wieckiewicz, Mieszko

doi:10.1111/jsr.14072

Cited by 4 publications

(1 citation statement)

References 61 publications

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“…It can occur as a single event, in pairs or in clusters, and is connected with the severity of orofacial pain. 33 During the implementation of the present project, the research results facilitated the decision on the indicated psychological or psychiatric consultation for patients treated for TMD. Moreover, the patients expressed their satisfaction with the recommendation of a necessary consultation regarding their psycho-emotional state.…”

Section: Discussionmentioning

confidence: 98%

Initial assessment of the psycho-emotional state of patients with temporomandibular disorders: A pilot study

Pihut,

Kostrzewa-Janicka,

Orczykowska

et al. 2024

Dent. Med. Probl.

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Background. Temporomandibular disorders (TMD) are a group of conditions that affect the function of the masticatory muscles, temporomandibular joints and surrounding structures.Objectives. The objective of the preliminary investigation was to develop an initial questionnaire for emotional assessment, pre-designed for TMD patients, and provide guidance for further management through referral to psychological and/or psychiatric counseling. Additionally, we aimed to compare the results of tests carried out in TMD patients with those of healthy subjects. Material and methods.The study involved 260 patients who reported for dental treatment. The TMD study group (Group 1, n = 130) consisted of patients diagnosed with TMD, and the control group (Group 2, n = 130) had TMD diagnostically excluded. The questionnaire included 30 questions about the emotional state of the patients in the past 4 weeks.Results. The mean scores were 37.715 points for Group 1 (median (Me) = 35.5, standard deviation (SD) = 12.58 and 24.938 points for Group 2 (Me = 24, SD = 7.95) (p < 0.001).Conclusions. The research suggests that the developed questionnaire is useful for an initial assessment of the psycho-emotional state of TMD patients. Furthermore, the results emphasize a greater need for psychological counseling in TMD patients compared to their healthy counterparts.

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Section: Discussionmentioning

confidence: 98%

Initial assessment of the psycho-emotional state of patients with temporomandibular disorders: A pilot study

Pihut,

Kostrzewa-Janicka,

Orczykowska

et al. 2024

Dent. Med. Probl.

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Association of night‐time sleep and daytime napping with painful temporomandibular disorder

Jiang,

Yu,

Gong

et al. 2024

J of Oral Rehabilitation

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BackgroundPainful temporomandibular disorder (TMD) is the common cause of chronic oro‐facial pain, which may interfere with sleep. Previous studies have documented an association between sleep and TMD.ObjectivesThis study aimed to further explore the association of night‐time sleep and daytime napping with painful TMD.MethodsA total of 419 patients (aged 31.88 ± 11.54 years with women forming 85.4%) from a TMD/Orofacial Pain center were enrolled. Patients' sleep conditions were evaluated with the Pittsburgh Sleep Quality Index (PSQI) questionnaire, and information on night‐time sleep duration, napping duration and napping frequency was interviewed. TMD was diagnosed according to the Diagnostic Criteria for TMD protocol and stratified into myalgia (muscle pain), arthralgia (joint pain) and combined (muscle and joint pain) subgroups. The severity of TMD was measured with the Fonseca Anamnestic Index (FAI) questionnaire. Restricted cubic spline (RCS) regression models were established to explore relationships between sleep and painful TMD subgroups.ResultsPatients with poor sleep quality (PSQI≥6) had higher FAI scores (median 60, p < .001) and higher proportions of painful TMDs. The myalgia subgroup had higher PSQI scores (median 8, p < .001) than the arthralgia subgroup. The RCS models indicated a non‐linear relationship between night‐time sleep duration and myalgia (p < .001), which was not observed in arthralgia. However, there were no significant findings concerning napping and painful TMD subgroups.ConclusionThis study found that the association between sleep and TMD is mainly related to painful TMD conditions, which are associated with night‐time sleep duration.

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Effects of the low Fowler's sleep position and methazolamide treatment on sleep bruxism: A randomized controlled trial

Zhong,

Li,

Zou

et al. 2024

Journal of Sleep Research

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SummaryIntracranial pressure is one of the determinants of sympathetic activities, and sleep bruxism is associated with increased sympathetic activities. This study aimed to investigate effects of the low Fowler's sleep position and methazolamide treatment on the occurrence of rhythmic masticatory muscle activities/sleep bruxism episodes in patients with sleep bruxism in a randomized controlled trial. Polysomnographic recordings were performed on the patients with sleep bruxism sleeping in the low Fowler's (15°–30°) or supine position (n = 11), and with methazolamide or placebo treatment (100 mg, 3–4 hr before bedtime, P.O., n = 9), and changes in sleep variables and heart rate variance during sleep in the low Fowler's position or with methazolamide treatment were determined. Sleep bruxism index, number of masseter muscle electromyographic bursts per hour of sleep, ratio of rhythmic masticatory muscle activities/sleep bruxism duration to the total sleep duration, index of total limb movements, index of limb movements with rhythmic masticatory muscle activities, and number of sleep bruxism clusters per hour of sleep in the low Fowler's position and after methazolamide intake were significantly smaller (p < 0.05–0.001) than those in the supine position and after placebo intake, respectively. The low‐frequency heart rate variance powers during non‐rapid eye movement sleep stage 2 (N2) in the low Fowler's position and with methazolamide treatment were significantly lower (p < 0.05) than those during sleep in the supine position and with placebo treatment, respectively. In conclusion, sleep in the low Fowler's position and methazolamide treatment were associated with significant decreases in the occurrence of rhythmic masticatory muscle activities/sleep bruxism episodes, which might be due to a reduction in intracranial pressure and sympathetic activities mainly during non‐rapid eye movement sleep stage 2.

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A case–control study on the effect of rhythmic masticatory muscle activity (RMMA) clusters on sleep fragmentation and severity of orofacial muscle pain in sleep bruxism

Cited by 4 publications

References 61 publications

Initial assessment of the psycho-emotional state of patients with temporomandibular disorders: A pilot study

Initial assessment of the psycho-emotional state of patients with temporomandibular disorders: A pilot study

Association of night‐time sleep and daytime napping with painful temporomandibular disorder

Effects of the low Fowler's sleep position and methazolamide treatment on sleep bruxism: A randomized controlled trial

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