Is core stability training effective in temporomandibular disorder? A randomized controlled trial.

OBJECTIVES: This study investigated the effect of core stability training on pain, function, quality of life, and posture in individuals with temporomandibular disorder. MATERIALS AND METHODS: Participants were divided into the following: the core stability group and the control group. For pain assessment, the Graded Chronic Pain Scale 2.0; for function, the 20-item Jaw Functional Limitation Scale (JFLS-20); for oral health-related quality of life, Oral Health Impact Profile-14 (OHIP-14); and for posture assessment, the New York Scale were used. Rocabado exercises were applied to the control group. Additionally, spinal stabilization exercises were applied for the core stability group for 6 weeks. RESULTS: Both types of exercise contribute positively to the quality of life associated with oral health. Rocabado exercise provided a significant change in Chronic Pain Intensity and Disability Score. CONCLUSION: Rocabado exercise and core stability training, implemented with Rocabado, provide significant changes in pain values. When evaluated in terms of function, no significant difference was found in both exercise programs. CLINICAL RELEVANCE: Core stability training with Rocabado provides significant changes. CLINICAL TRIAL REGISTRATION NUMBER: NCT04755621.

Interfacial surfactant competition and its impact on poly(ethylene oxide)/Au and poly(ethylene oxide)/Ag nanocomposite properties.

The structure and properties of nanocomposites of poly(ethylene oxide), with Ag and Au nanoparticles, surface modified with a 1:1 (by volume) oleylamine/oleic acid mixture, were investigated via transmission electron microscopy, scanning electron microscopy, thermogravimetric analysis, differential scanning calorimetry (DSC), infrared spectroscopy, dynamic mechanical analysis, and static mechanical testing. Results indicated that there was more oleylamine on Ag nanoparticles but more oleic acid on Au nanoparticles. This difference in surfactant populations on each nanoparticle led to different interfacial interactions with poly(ethylene oxide) and drastically influenced the glass transition temperature of these two nanocomposite systems. Almost all other properties were found to correlate strongly with dispersion and distribution state of Au and Ag nanoparticles, such that the property in question changed direction at the onset of agglomeration.