To test the hypothesis that jaw muscles and specific neck muscles, ie, levator scapulae, trapezius, sternocleidomastoideus, splenius capitis, co-contract at different submaximum bite forces usually generated during clenching tooth grinding, for force directions.Bite-force transducers measured all three spatial components were incorporated in 11 healthy subjects. The persons developed feedback-controlled a variety of bite-force directions. electromyographic (EMG) activity trapezius was...

ABSTRACT Over the past few years, innovations in CAD/CAM processes allowed for manufacturing bar-retained constructions made of titanium or a Cobalt-chrome (CoCr) alloy to secure position overdentures. Here, authors demonstrate challenges implant-prosthetic mandibular rehabilitation male 71-year-old patient with reconstructed left-sided clefting congenital deformity and class III malocclusion anterior crossbite retrognathic maxilla. This case illustrates that an edentulous mandible four...

Summary Aim of this study was to introduce a feasible and valid technique for the assessment masticatory performance that is comparable standard sieving method. Twenty‐one chewing samples (Optosil) comminuted by healthy dentate adults were analysed with scanning Scanning performed using conventional flatbed scanner (1200 dpi). All scanned images underwent image analysis (ImageJ), which yielded descriptive parameters such as area, best‐fitting ellipse each particle. Of 2D‐image, volume...

Neuromuscular adaptations during skill acquisition have been extensively investigated for skeletal muscles. Motor rehabilitation is the main target application of motor training. Such measures are also relevant musculature jaw, but few data available adaptation masticatory system. The objective this study was to evaluate and compare long-term training effects different tasks on masseter temporal In 20 healthy subjects, electromyographic response unilateral bilateral maximum voluntary tooth...

Alterations of body sway caused by isometric contractions the jaw muscles have been reported previously. The objective this study was to test if motor tasks masticatory system with different control demands affect posture differently during quiet stance. Position and displacements center foot pressure (COP) were measured for 20 healthy subjects who either kept mandible at rest or performed unilateral bilateral maximum voluntary teeth clenching, feedback-controlled biting submaximum bite...

Bruxism may be involved in the aetiology of myofascial neck pain. The objective this study was to test hypothesis that anterior and posterior muscles co-contract during jaw clenching. Ten subjects developed different feedback-controlled submaximum bite forces a variety bite-force directions by means transducers. electromyographic activity sternocleidomastoid supra/infrahyoidal muscles, semispinalis capitis, cervicis, multifidi recorded use surface electrodes intramuscular wire electrodes,...

Summary This study was to compare the short‐term therapeutic efficacy of device‐supported sensorimotor training with that standard splint therapy for patients myofascial temporomandibular disorder (TMD) pain over a treatment period 3 months. We tested hypothesis both types intervention are equally effective reduction. In addition, electromyographic (EMG) activity temporal and masseter muscles recorded under conditions force‐controlled submaximum maximum biting in intercuspation. Of...

Summary Human posture is characterised by inherent body sway which forces the sensory and motor systems to counter destabilising oscillations. Although potential of biting increase postural stability has recently been reported, mechanisms craniomandibular system ( CMS ) for human control are functionally coupled not yet fully understood. The purpose our study was, therefore, investigate effect submaximum on kinematics trunk head. Twelve healthy young adults performed force‐controlled FB...

Summary Strategies for recruitment of masseter muscle motor units ( MU s), provoked by constant bite force, different vertical jaw relations have not previously been investigated. The objective this study was to analyse the effect small changes in relation on behaviour regions during feedback‐controlled submaximum biting tasks. Twenty healthy subjects (mean age: 24·6 ± 2·4 years) were involved investigation. Intra‐muscular electromyographic EMG ) activity right recorded muscle. s identified...

Objective: The purpose of this study was to compare the short-term effectiveness three different types immediate, non-pharmacological intervention for alleviation painful symptoms temporomandibular disorders (TMD).Material and methods: Thirty-six patients (mean age 41.6 ± 16.7 years, 25 females) diagnosed with non-dysfunctional TMD received counselling subsequently were randomly allocated treatment groups: in Group A prefabricated oral splints water-filled elastic pads (Aqualizer®), those B...

The objective of this study was to analyse the co-contraction behaviour jaw and neck muscles during force-controlled experimental grinding in supine position. Twelve symptom-free subjects were enrolled study. Electromyographic (EMG) activity semispinalis capitis, splenius capitis levator scapulae recorded bilaterally with intramuscular fine-wire electrodes, whereas that sternocleidomastoideus, infrahyoidal, suprahyoidal, masseter anterior temporalis registered surface electrodes. EMG force...

Summary Immediate adaptation to experimental‐balancing interferences is known affect jaw kinematics and electromyographic activity ( EMG ). However, little about the influence on masticatory performance parameters. This study hypothesises that balancing‐side significantly reduce of system. Twenty‐one healthy subjects (eleven female, mean age: 24·1 ± 1·2 years) chewed standardised silicone cubes performing 15 cycles right side under three experimental conditions: (i) natural dentition ND ),...

Human motor control is based on complex sensorimotor processes. Recent research has shown that neuromuscular activity of the craniomandibular system (CMS) might affect human control. In particular, improvements in postural stability and muscle strength have been observed as a result voluntary jaw clenching. Potential benefits aligning appliances golf performance also described. These reports are highly contradictory, however, oral task performed often unclear. The purpose our study was,...

The purpose of this study was to examine, on the basis masticatory performance (MP), total muscle work (TMW), and range movement (RoM), whether reduction profile cusps results in loss biomechanical effectiveness chewing by healthy dentate patients.Twenty patients (10 female, mean age: 24.1 ± 1.2 years) chewed standardized silicone particles, performing 15 cycles. Three experimental conditions were investigated: (1) natural dentition (ND), (2) splints with structured occlusal profiles...

Localised motor-unit (MU) recruitment in the masseter was analysed this study. We investigated whether differential activation behaviour, which has already been reported for distant regions, can also be detected small muscle subvolumes at level of single MUs. Two bipolar fine-wire electrodes and an intra-oral 3D bite-force transmitter were used to record intra-muscular electromyograms (EMG) resulting from controlled bite-forces 10 healthy human subjects (mean age 24.1 ± 1.2 years)....

The effects of jaw clenching on balance has been shown under static steady-state conditions but the dynamic have not yet investigated. On this basis, research questions were: 1) if improves balance; 2) persist when task loses its novelty and increased attention associated with it; 3) improved performance is decreased muscle activity. A total 48 physically active healthy adults were assigned to three groups differing in intervention (Jaw training (JBT), only (OBT) or no-training control group...

Postural control is crucial for most tasks of daily living, delineating postural orientation and balance, with its main goal fall prevention. Nevertheless, falls are common events have been associated deficits in muscle strength dynamic stability. Recent studies reported on improvements rate force development static evoked by jaw clenching activities, potentially induced facilitation human motor system excitability. However, there no describing the effects The present study, therefore, aimed...

Jaw‐closing movements are basic components of physiological motor actions precisely achieving intercuspation without significant interference. The main purpose this study was to test the hypothesis that, despite an imperfect intercuspal position, precision jaw‐closing fluctuates within range closing indispensable for meeting For 35 healthy subjects, condylar and incisal point positions fast slow jaw‐closing, interrupted at different jaw gaps by use frontal occlusal plateaus, were compared...