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1.
Stomatologiia (Mosk) ; 100(1): 30-33, 2021.
Artículo en Ruso | MEDLINE | ID: mdl-33528953

RESUMEN

THE AIM OF THE STUDY: Was to investigate the effectiveness of combined treatment with elastic bands and splints in patients with masticatory muscle hypertension. 103 patients (37 men and 66 women) aged from 21 to 65 years were examined. The diagnosis was made based on clinical and instrumental (electromyography) methods. Pain intensity was determined using a visual-analog scale (VAS). Elimination of masticatory muscle hypertension in patients of the first group (51 people) was carried out using only splints while patients of the second group (52 people) had a combined therapy with elastic bands and splints. In the second group of patients reliable reducing of pain intensity was observed by day 14 from the start of therapy (4.54±0.5 points), while in the first group of patients it was discovered only by day 21 (5.08±0.6 points). Reliable changing of the bioelectrical activity of masticatory muscles in the second group of patients was observed by the beginning of second week from the start of preliminary therapy, while in the first group of patients it was discovered only by the third week. Thus, the proposed method of masticatory muscles hypertension treatment using elastic bands and splints has features, favorably distinguish it from the other methods of the therapy, because it provides sparing functioning condition for masticatory muscles.


Asunto(s)
Hipertensión , Férulas (Fijadores) , Adulto , Anciano , Electromiografía , Femenino , Humanos , Hipertensión/terapia , Masculino , Músculo Masetero , Músculos Masticadores , Persona de Mediana Edad , Adulto Joven
2.
Artículo en Inglés | MEDLINE | ID: mdl-33371343

RESUMEN

The aim of the study was functional evaluation of soft tissue mobilization in patients with temporomandibular disorder-myofascial pain with referral. The study group consisted of 50 individuals-37 females and 13 males. The average age was 23.36 ± 2.14 years. All subjects were diagnosed with myofascial pain with referral (diagnostic criteria for temporomandibular disorders). Soft tissue mobilization was applied three times. Electromyography of selected masticatory muscles was performed six times-before and after the treatment. After each mobilization, a decreasing tendency of muscular activity was observed in the entire study group. The Friedman test indicated that mobilization altered the activity of the right temporal muscle (p = 0.00010), both masseters (p = 0.0000), right sternocleidomastoid (p = 0.00251), left sternocleidomastoid (p = 0.00033), and right and left digastric muscles (p = 0.00045 and p = 0.00000, respectively). With respect to symmetry a statistically significant difference was noted in the case of the sternocleidomastoid muscles (p = 0.00729). In conclusion, soft tissue mobilization seems to be effective in the relaxation of masticatory muscles in patients with temporomandibular disorders. Our findings proved that soft tissue mobilization does not improve the symmetry and synergy of the masticatory muscles limited by dental occlusion.


Asunto(s)
Síndromes del Dolor Miofascial , Trastornos de la Articulación Temporomandibular , Adulto , Electromiografía , Femenino , Humanos , Masculino , Músculos Masticadores , Síndromes del Dolor Miofascial/diagnóstico , Síndromes del Dolor Miofascial/terapia , Dolor , Derivación y Consulta , Adulto Joven
3.
Stomatologiia (Mosk) ; 99(5): 62-68, 2020.
Artículo en Ruso | MEDLINE | ID: mdl-33034179

RESUMEN

BACKGROUND: Myofunctional condition of the temporomandibular joint (TMJ) in everyday orthodontic practice is an important diagnostic criterion for evaluating the quality of orthodontic treatment. Pre-orthodontic preparation is often a necessary stage of orthodontic treatment. OBJECTIVE: To evaluate and compare the adaptation of the masticatory muscles of patients during pre-orthodontic preparation based on interference electromyography of the masticatory and temporal muscles with the data of patients after orthodontic treatment without preparation and with the indicators in the control group. MATERIALS AND METHODS: Electromyography indicators of the masticatory and temporal muscles of 82 patients aged 18 to 35 were obtained. Patients were divided into 3groups: 1st - with signs of TMJ dysfunction at the stage of pre-orthodontic preparation and orthodontic treatment; 2nd - patients after orthodontic treatment, having dissatisfaction with the state of the dentition; 3rd - a control group was compared composed of patients without signs of myofunctional dysfunction. RESULTS: Patients who have complaints after orthodontic treatment have different electromyography of the masticatory and temporal muscles in comparison with the control group. In patients with signs of TMJ dysfunction at the stage of preorthodontic preparation, after using a device of their own design, the structures of the temporomandibular joint were adapted to a new functional position. CONCLUSION: After using the device of its own design, myofunctional adaptation to a new functional position was obtained, which is confirmed by electromyographic studies.


Asunto(s)
Ortodoncia Correctiva , Síndrome de la Disfunción de Articulación Temporomandibular , Adolescente , Adulto , Humanos , Músculos Masticadores , Músculo Temporal , Articulación Temporomandibular , Adulto Joven
4.
J Oral Rehabil ; 47(12): 1521-1529, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32898936

RESUMEN

BACKGROUND: Clinical findings suggest that orthodontic treatment with clear aligners (clear aligner therapy/CAT) may cause masticatory muscle soreness in some patients. OBJECTIVE: This multi-site prospective study investigated tooth pain and masticatory muscle soreness and tenderness in patients undergoing CAT and explored whether psychological traits affected these outcomes. METHODS: Twenty-seven adults (22F, 5M; mean age ± SD=35.3 ± 17.6 years) about to start CAT were recruited at three clinics. During CAT, they reported on 100-mm visual analogue scales their tooth pain, masticatory muscle soreness and stress three times per day over 4 weeks (week 1 = baseline; week 2 = dummy aligner; week 3 = first active aligner; week 4 = second active aligner). Pressure pain thresholds (PPTs) were measured at the masseter and temporalis at baseline and after week 4. Mixed models were used to evaluate the outcome measures over time. RESULTS: Clear aligner therapy caused mild tooth pain, which was greater with the passive than the first and second active aligners (both P < .001). Mild and clinically not relevant masticatory muscle soreness was produced by all aligners (all P < .05), with the first active aligner producing less soreness than the dummy aligner (P < .001). PPTs did not change significantly after 4 weeks. Both tooth pain and masticatory muscle soreness were affected by stress and trait anxiety, whilst muscle soreness was affected also by oral behaviours. CONCLUSIONS: In the short term, CAT produces tooth pain and masticatory muscle soreness of limited significance. Frequent oral behaviours are related to increased masticatory muscle soreness during CAT. The medium- and long-term effects of CAT should be further explored.


Asunto(s)
Mialgia , Aparatos Ortodóncicos Removibles , Adulto , Humanos , Músculo Masetero , Músculos Masticadores , Mialgia/etiología , Umbral del Dolor , Estudios Prospectivos
5.
Clin Ter ; 171(5): e414-e420, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32901785

RESUMEN

OBJECTIVE: Surface Electromyography of masticatory muscles (sEMG) is used as a tool to support diagnosis and treatment of Temporomandibular disorders (TMDs). The study aimed at examining jaw muscles pattern in individuals with temporomandibular joint disc displacement with reduction (TMJ/DDR). This sort of subjects was supposed to have a different muscular pattern compared to the control group. MATERIALS AND METHODS: Sixty-four women with unilateral TMJ/DDR and forty TMD-free women underwent a sEMG assessment of masticatory muscles. Descriptive statistics were performed. Student T-Test assessed differences between the two groups. Statistical significance was set at ρ < 0.05. RESULT: The t-test showed statistically significant results only in BAR and SMI scores (ρ value < 0,0001). The other measurements did not differ between the two groups. BAR index values of all healthy subjects were within the reference range. Almost the entire TMJ/DDR group had BAR index out of reference range and anteriorly placed. CONCLUSION: Women with TMJ/DDR showed an altered recruitment of the jaw muscles, with significant difference between the activity of the couple of temporalis and the one of masseters, compared to the control group. A lower chewing efficiency was found in the DDR group compared to the control one.


Asunto(s)
Electromiografía , Disco de la Articulación Temporomandibular/fisiopatología , Trastornos de la Articulación Temporomandibular/fisiopatología , Adulto , Electromiografía/métodos , Femenino , Humanos , Músculo Masetero/fisiopatología , Masticación , Músculos Masticadores/fisiopatología , Persona de Mediana Edad , Músculo Temporal/fisiopatología , Trastornos de la Articulación Temporomandibular/diagnóstico
6.
Proc Biol Sci ; 287(1935): 20201578, 2020 09 30.
Artículo en Inglés | MEDLINE | ID: mdl-32962547

RESUMEN

The southern alligator lizard (Elgaria multicarinata) exhibits a courtship behaviour during which the male firmly grips the female's head in his jaws for many hours at a time. This extreme behaviour counters the conventional wisdom that reptilian muscle is incapable of powering high-endurance behaviours. We conducted in situ experiments in which the jaw-adductor muscles of lizards were stimulated directly while bite force was measured simultaneously. Fatigue tests were performed by stimulating the muscles with a series of tetanic trains. Our results show that a substantial sustained force gradually develops during the fatigue test. This sustained force persists after peak tetanic forces have declined to a fraction of their initial magnitude. The observed sustained force during in situ fatigue tests is consistent with the courtship behaviour of these lizards and probably reflects physiological specialization. The results of molecular analysis reveal that the jaw muscles contain masticatory and tonic myosin fibres. We propose that the presence of tonic fibres may explain the unusual sustained force properties during mate-holding behaviour. The characterization of muscle properties that facilitate extreme performance during specialized behaviours may reveal general mechanisms of muscle function, especially when done in light of convergently evolved systems exhibiting similar performance characteristics.


Asunto(s)
Maxilares/anatomía & histología , Lagartos/fisiología , Músculos Masticadores/anatomía & histología , Conducta Sexual Animal , Animales , Fuerza de la Mordida , Cortejo , Femenino , Masculino , Contracción Muscular , Músculo Esquelético
7.
Clin Nucl Med ; 45(11): 919-920, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-32969905

RESUMEN

F-FDG is the most widely used PET tracer worldwide. Before the examination, recommendations are given to patients to avoid muscular activities, with the goal to limit F-FDG uptake in muscles. Here, we report the case of a 36-year-old man with Hodgkin disease referred to our department to perform an F-FDG PET/CT for immunotherapy assessment. The PET images showed a homogeneous, symmetric, and very intense uptake of the masticatory muscles. The medical examination exhibited a trismus, and the patient revealed to have been using cocaine 15 minutes before injection of F-FDG.


Asunto(s)
Cocaína/farmacología , Fluorodesoxiglucosa F18/metabolismo , Músculos Masticadores/metabolismo , Adulto , Artefactos , Transporte Biológico/efectos de los fármacos , Enfermedad de Hodgkin/diagnóstico por imagen , Enfermedad de Hodgkin/metabolismo , Humanos , Masculino , Músculos Masticadores/diagnóstico por imagen , Tomografía Computarizada por Tomografía de Emisión de Positrones
8.
Georgian Med News ; (303): 55-58, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32841181

RESUMEN

Type of breathing (nasal, oral, oronasal) can turn out to be a causative factor for (or result of) orthodontic anomalies alongside the respiratory-metabolic disorders. Consequently, assessment of functional characteristics of the masticatory apparatus, which differ in oral and nasal breathing modes, could be of interest for the evaluation of the degree of orthodontic dysfunction and formation of an effective individualized treatment plan. Aim of the study was to assess electrophysiologic characteristics of the masticatory muscles bilaterally in nasal and oral breathing modes. The study was conducted on the group of 22 women-volunteers aged 18-30 years. All subjects enrolled in the study had permanent dentition with all second molars present; minimum 28 natural teeth in total. None of them had clinical manifestations of somatic, neurological or endocrine disorders or those of nasal cavity, paranasal sinus or tonsillar disorders.Written informed consent was obtained from all subjects. To narrow the selection of patients eligible for the study, we applied a protocol of normalized electromyographic recording during maximal voluntary contraction of clenching on a cotton roll. Indicators of the degree of mean muscle contractility recorded as a result of standardized maximal voluntary contraction show that in nasal breathing muscle activity is homogenous and symmetric in the right and left masseter and temporalis muscles. Conversely, the indicators are dissociated in oral breathing. Electrophysiological activity and, consequently, contractility of the muscles are reduced, which must be caused by recruitment of decreasing number of less excitable motor units. The results yielded by the study suggest that the data on the state of neuromuscular balance of the masticatory apparatus could be utilized for the assessment of the degree of orthodontic dysfunction and for development of individualized treatment plan.


Asunto(s)
Músculos Masticadores , Músculo Temporal , Adolescente , Adulto , Electromiografía , Femenino , Humanos , Músculo Masetero , Contracción Muscular , Adulto Joven
9.
Wiad Lek ; 73(7): 1345-1349, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32759417

RESUMEN

OBJECTIVE: The aim: To study possibilities of prognosis of pathological wear of tooth hard tissues development depending on the functional activity of masticatory muscles. PATIENTS AND METHODS: Materials and methods: In order to achieve the goal of the study, a survey of patients at the age of 19 to 69 years was conducted for precision of number of persons who have increased tooth wear. During the examination of all patients, three groups were selected: control and two researched ones. Patients in the control group (30 patients between the age of 18 and 60 years old) had an intact dentition without any visible sign of increased tooth wear. The researched groups included 25 patients aged from 18 to 60 years old. The secondresearch group included patients who had increased tooth wear of I-III level. The children of the patients of the II group with or without any sign of increased tooth wear were referred to the third research group. RESULTS: Results: The method of electromyography was performed for the study of peculiarities of the muscular activity of the maxillofacial area of the patients of the control and research groups. In our opinion, all manifestations of increased tooth wear are related to changes in the muscle system, the motor apparatus and the nervous activity of an organism. CONCLUSION: Conclusions: The study of direct muscular apparatus and related bone system may predict the possibility of developing of an increased tooth wear of young patients in the future and prevent its development, as well as to justify the application of a prevention and treatment plan of the studied pathology.


Asunto(s)
Desgaste de los Dientes , Adolescente , Adulto , Electromiografía , Humanos , Músculos Masticadores , Persona de Mediana Edad , Pronóstico , Adulto Joven
10.
Indian J Dent Res ; 31(3): 363-367, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32769268

RESUMEN

Aim: This study describes the relationship of the chronophysiological organization of the lateral teeth occlusion and the parameters of the chewing unit of the human dentofacial system (bioelectric potentials, the force of the masticatory muscles, masticatory efficiency) which should be considered in modeling of prosthesis occlusal surfaces. Materials and Methods: Examination of 200 respondents with a "day" chronotype, with Angle class I bilateral occlusion at the age of 18-35 years was conducted daily for 3 days. From 8.00 to 20.00, every 4 hours, the amplitude of the electromyography, the jaw muscles' force, the masticatory efficiency, the area of the occlusal contacts, and the near-contact zones were determined. Results: The activity of the masticatory muscles increased during the period from 12.00 to 16.00, which coincided with the escalation of the masticatory efficiency and of the occlusal contacts area. The relationship between the occlusal surfaces' relief and masticatory efficiency is described by two types of occlusal surfaces' topography - smoothed and pronounced, differing by the ratio of the areas of the occlusal contacts and the near-contact zones in 0.25- and 1-mm wide. Conclusion: The modeling of the occlusal surface of the permanent prosthetic restorations for patients with the "day" chronotype should be carried out with the area values of occlusal contacts and near-contact zones corresponding to the period of masticatory muscles activity from 12.00 to 16.00 and in accordance with the characteristic type of the occlusal surfaces' relief.


Asunto(s)
Oclusión Dental , Maloclusión de Angle Clase I , Electromiografía , Humanos , Masticación , Músculos Masticadores
11.
J Appl Oral Sci ; 28: e20200272, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32725048

RESUMEN

Treatment of temporomandibular disorders (TMD) is a challenge for health care professionals. Therefore, new approaches have been investigated, such as the use of natural products. Objective This systematic review aims to summarize the natural products used in treatment of experimental models of TMD. Methodology A systematic search was performed in the databases Medline, Web of Science, Scopus, Embase, SciELO, LILACS, and Scholar Google databases in January 2020, dating from their inception. Pre-clinical studies with natural products for intervention in experimental TMD were included. Two reviewers independently selected the studies, extracted the data, and evaluated the risk of bias. Results 17 records were selected, and 17 different natural products were found, including three lectins, three plants or algae extracts, three sulfated polysaccharides, three cocoa preparations, and five isolated compounds. Concerning the risk of bias, most studies lacked on randomization and blinding. Nociception induced by phlogistic agents was evaluated in most articles, and in five studies it was associated with analysis of inflammatory parameters. In order to investigate the mechanism of action of the natural products used, eight studies evaluated expression of neural or glial molecular markers. Conclusions 16 of 17 natural products found in this review presented positive results, showing their potential for treatment of TMD. However, the lack of methodological clarity can influence these results.


Asunto(s)
Productos Biológicos , Trastornos de la Articulación Temporomandibular , Animales , Músculos Masticadores , Modelos Animales , Articulación Temporomandibular
12.
Folia Med Cracov ; 60(1): 75-83, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32658214

RESUMEN

Temporomandibular disorders (TMD) is one of the most common problem in contemporary dentistry. It is a term covering dysfunction of the masticatory muscles and the temporomandibular joints. Patients are suffering from severe pain, followed by limited mandibular opening and sounds in the temporomandibular joints during jaw movement. TMD influences the quality of life because the symptoms can become chronic and difficult to manage. Radiofrequency waves (RF) are electromagnetic waves with low energy and high frequency. They provide pain relief without causing significant damage to the nervous tissue. The RF therapy is commonly used for physiotherapeutic treatment of skeletal muscle relaxation, as a supportive therapy. The rehabilitation effect of these waves is based on diathermy by means of high-voltage quick alternating current. RF has also found application in physical therapy, as a therapeutic tool for various types of chronic pain syndromes. The aim of this literature review is to show the beneficial effect of radiofrequency waves on the pain of the masticatory muscles in the course of TMD.


Asunto(s)
Músculos Masticadores/fisiopatología , Terapia por Radiofrecuencia/métodos , Trastornos de la Articulación Temporomandibular/radioterapia , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad
13.
Artículo en Inglés | MEDLINE | ID: mdl-32646041

RESUMEN

This study is aimed at investigating the effects of synchronized neuromuscular electrical stimulation (NMES) and chewing exercises on bite force and the masseter muscle thickness in community-dwelling older adults. Material and methods: Forty older adults were enrolled in South Korea and randomly assigned to either an experimental or control group. The experimental group performed chewing exercises using the No-Sick Exerciser equipment synchronized with NMES applied to the bilateral masseter muscles, while the control group performed only chewing exercises. Both groups received interventions for 20 min/day, 5 days/week, for 6 weeks. Bite force was measured using the OCCLUZER device, and masseter muscle thickness was measured using a portable ultrasound. Results: Both groups showed a significant increase in bite force and masseter muscle thickness compared to baseline measurements (p < 0.05). The experimental group showed a significantly higher increase in bite force and masseter muscle thickness than the control group after combined intervention (p < 0.05). Conclusion: This study demonstrates that NMES synchronized with chewing exercises is more efficient in increasing bite force and masseter muscle thickness than chewing exercises alone in community-dwelling older adults.


Asunto(s)
Fuerza de la Mordida , Estimulación Eléctrica , Músculo Masetero , Masticación/fisiología , Músculos Masticadores/fisiopatología , Anciano , Electromiografía , Femenino , Humanos , Vida Independiente , Masculino , Músculo Masetero/anatomía & histología , Músculo Masetero/diagnóstico por imagen , República de Corea , Ultrasonografía
14.
Swiss Dent J ; (7-8): 593-598, 2020 Jul 20.
Artículo en Alemán | MEDLINE | ID: mdl-32674531

RESUMEN

The interdisciplinary Orofacial Pain Unit at the Center of Dental Medicine of the University of Zurich celebrates its 15th anniversary. This article outlines the evidence-based integrative treatment concept with a focus on psychosocial aspects of pain. We exemplify how the evaluation and treatment by a pain psychologist complements the dental therapy. For example, self-management techniques can assist in reducing apprehension, worries and fears, which are often associated with an increased tone of the masticatory muscles. Manifestations include clenching and grinding of teeth, orofacial pain, and other less specific symptoms such as tinnitus. The clinical relevance is illustrated by selected case studies from routine clinical practice.


Asunto(s)
Dolor Facial , Trastornos de la Articulación Temporomandibular , Humanos , Músculos Masticadores
15.
J Oral Rehabil ; 47(8): 939-943, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32484972

RESUMEN

BACKGROUND: Patients with Down syndrome (DS) present functional and anatomical alterations that may negatively impact their health and quality of life. Down syndrome patients have been shown to have a high prevalence of temporomandibular disorder (TMD), but little is known about the diagnosis, treatment and prevention in these individuals. OBJECTIVE: To evaluate the impact of a home-based multidisciplinary programme on muscular TMD in DS adults. METHODS: After being diagnosed with TMD-related masticatory muscle disorder, 20 adult men and 20 adult women with DS received an educational material with instructions on how to perform daily home facial self-massage and exercises for orofacial and masticatory muscles. Participants were also provided with educational information on TMD. Those who failed to perform at least 50% of the programme (23 days) were considered non-adherent. Oral parafunctional behaviours, facial pressure-pain threshold and maximum mouth opening were assessed at baseline and after the intervention. RESULTS: Twenty-five patients adhered to the programme as opposed to 15 non-adherent patients. Statistically significant improvements in all parameters were observed among adherent patients, except for the number of parafunctions. CONCLUSION: The proposed home-based multidisciplinary programme seemed to be effective in improving some aspects related to muscular TMD in DS adults.


Asunto(s)
Síndrome de Down , Trastornos de la Articulación Temporomandibular , Adulto , Dolor Facial , Femenino , Humanos , Masculino , Músculos Masticadores , Calidad de Vida
16.
J Oral Rehabil ; 47(8): 944-950, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32474939

RESUMEN

BACKGROUND: Juvenile idiopathic arthritis (JIA) is an autoimmune, chronic, inflammatory joint disease, affecting children and adolescents. Patients with JIA may have pain and fatigue in muscles. There are not studies evaluating the pressure pain thresholds (PPTs) of both masticatory muscles and temporomandibular joint (TMJ) in patients with JIA. OBJECTIVE: This study aimed to investigate PPTs of masticatory muscles and TMJ in subjects with JIA. METHODS: Fifty-one JIA patients and fifty-two healthy subjects were recruited. JIA group was assessed for with a standardised clinical examination for temporomandibular disorders. In all subjects, the PPT was evaluated in the following sites: anterior temporalis (AT) and masseter (MM) muscles, TMJ and thenar (TH) eminence. Comparisons between groups were assessed with unpaired t test and ANOVA (P < .05). RESULTS: Pressure pain thresholds were significantly lower among JIA patients compared with controls (P < .001) for all analysed sites. The presence of TMJ pain at palpation was significantly associated with a lower PPT at TMJ (P = .031). CONCLUSIONS: Patients with JIA have generally lowered pain threshold to mechanical stimulus, which suggests an effect of JIA on nocicepton-modulating processes.


Asunto(s)
Artritis Juvenil , Trastornos de la Articulación Temporomandibular , Adolescente , Niño , Humanos , Músculos Masticadores , Umbral del Dolor , Articulación Temporomandibular
17.
Bull Tokyo Dent Coll ; 61(2): 121-126, 2020 Jul 04.
Artículo en Inglés | MEDLINE | ID: mdl-32507780

RESUMEN

Here, we report a case in which acupuncture combined with trigger point injection was effective in a patient with chronic myofascial pain with referred pain in the masticatory muscles. The patient was a 46-year-old woman with the chief complaint of chronic persistent pain in the region of the left mandibular first molar, which had been extracted 5 months earlier. Stellate ganglion block was performed and amitriptyline administered at another hospital, but were ineffective. At her initial visit to our hospital, her primary complaint was chronic persistent pain in the region of the bilateral mandibular first molars. Several tender points were found on the masseter, temporalis, and sternocleidomastoid muscles, with bilateral referred pain. The pain score according to the visual analogue scale was 85. No significant psychological factors were found, however. Based on these findings, the diagnosis was chronic myofascial pain with referred pain in the masticatory muscles. Therefore, stretching of masticatory muscle and trigger point injection were performed. Two months later, the patient requested trigger point injections to be performed at all tender points, as the previous injections had been effective. The total volume of local anesthetic that this would require was considered to be excessive as there was a large number of tender points, however, and it was feared that a toxic reaction might occur. Therefore, acupuncture in combination with trigger point injection was selected instead. The symptoms disappeared within 9 months after commencement of this therapy, and treatment was completed within 1 year. The present results suggest that acupuncture therapy is effective when used in combination with trigger point injection.


Asunto(s)
Terapia por Acupuntura , Síndromes del Dolor Miofascial , Femenino , Humanos , Músculos Masticadores , Persona de Mediana Edad , Dolor Referido , Puntos Disparadores
18.
Pain Res Manag ; 2020: 6195601, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32454921

RESUMEN

In recent years, the number of patients applying for prosthetic treatment due to temporomandibular joint disorders (TMD) has been increasing. The main methods for treating disorders are the use of occlusal splints and physiotherapeutic rehabilitation as supportive treatment. Radio waves are electromagnetic waves with radiation frequency between 3 Hz and 3 THz, used for physiotherapeutic treatment of skeletal muscle relaxation in the range of 3 to 6 MHz. The rehabilitation effect of these waves is based on diathermy by means of high-voltage quick alternating current. Aim. The aim of the study was to evaluate the influence of radiofrequency waves on the pain of the masticatory muscles in the course of TMD and the usefulness of these procedures in the supporting treatment of these disorders. Materials and Methods. Patients aged 19 to 45 years, of both sexes, reported to the Consulting Room of TMD at the Institute of Dentistry in Krakow to undertake prosthetic treatment of TMD (I a-according to RDC/TMD). Study group (SG) consists of 20 patients who had 10 supportive treatments with radiofrequency currents. In the case of application of radiation to the muscle area, the energy was 20 J to the area of the masticatory muscles, the frequency was 3 MHz, bipolar technique, the duration of the procedure was 10 minutes, and the coupling substance was a gel for ultrasound examinations. The control group (CG) consisted of 20 patients who had 10 supportive treatments with sonophoresis procedures. For the area of masticatory muscles, 0.9 W/cm2 treatments were applied, the duty factor was 80%, the treatment time was 10 minutes, and the medical substance was 25% Voltaren gel. Results. Analysis of the results of the first clinical examinations (axis I) conducted in both groups shows a homogeneous clinical material and similar results. The second clinical examination revealed improved clinical parameters, but it showed a greater improvement in the SG. In the SG, the mean level of VAS was 6.25, and the extreme values were 5.9-0.14, the median was 2.15, and the standard deviation was 1.54. In the CG, the average value of VAS was 6.20 (peak of 5.2-0.7), the median was 2.4, and the standard deviation was 1.87. Summary. The search for new methods of supportive treatment of TMD is an important research direction due to the complex etiology of this disease and the lack of an explicit treatment algorithm. Conclusion. The results of our own research clearly indicate that the use of the radiofrequency waves brings pain relief and improvement of clinical parameters to a greater extent than in sonophoresis. It can be a very important new method in supportive treatment of TMD. Research needs to be continued.


Asunto(s)
Terapia por Radiofrecuencia/métodos , Trastornos de la Articulación Temporomandibular/terapia , Adulto , Femenino , Humanos , Masculino , Músculos Masticadores/efectos de la radiación , Persona de Mediana Edad , Ferulas Oclusales , Adulto Joven
19.
Stomatologiia (Mosk) ; 99(2): 61-65, 2020.
Artículo en Ruso | MEDLINE | ID: mdl-32441078

RESUMEN

The aim of the study was to analyze the effectiveness of elastocorrective therapy in the complex treatment of patients with musculo-articular dysfunction of TMJ. Patients (n=237) underwent a comprehensive examination, including: 1) analysis of control and diagnostic plaster models of the jaws; 2) clinical examination; 3) X-ray examination: panoramic X-ray and TRG in lateral projection, computed tomography (CT) of the temporomandibular joint or X-ray zonography of the temporomandibular joint, and magnetic resonance tomography (MRI) of the temporomandibular joint, 4) electromyography of the chewing muscles, 5) T-Scan occlusion computer analysis; 6) stabilometry. After clinical, X-ray examination and data analysis of functional research methods, an algorithm for diagnostic and therapeutic measures was developed. All patients were prescribed the use of elastocorrector: at night during sleep and during the day for 1.5-2 hours. As a result of the use of elastocorrector in patients with muscle-articular dysfunction of the TMJ the position of the mandible was normalized and the spatial ratio of TMJ elements was optimized, the masticatory muscles function and bioelectric activity was normalized and the overload of muscles of mastication during functional movements is eliminated. «Elastocorrector¼ appliance can be used in patients with TMJ musculo-articular dysfunction both for orthodontic treatment (to eliminate chewing muscle hypertonus, compression of intra-articular structures, premature occlusive contacts) and to prepare for further treatment (orthopedic, therapeutic, etc.).


Asunto(s)
Trastornos de la Articulación Temporomandibular , Síndrome de la Disfunción de Articulación Temporomandibular , Humanos , Masticación , Músculos Masticadores , Articulación Temporomandibular
20.
J Oral Rehabil ; 47(7): 827-833, 2020 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-32329089

RESUMEN

BACKGROUND: Electromyography (EMG) biofeedback (BF) training is potentially an effective cognitive-behavioural approach to regulate bruxism. OBJECTIVE: This study examined sleep bruxism regulation by daytime clenching control using a single-channel auditory EMG BF device. METHODS: Seventeen male subjects (mean age, 24.4 ± 3.1 years; mean ± SD) with self-reported awake/sleep bruxism were recruited and divided into a BF (n = 10) and a control (CO) group (n = 7). All subjects underwent four EMG recording sessions during both daytime and sleep over 3 weeks. During the daytime, in week 2, the BF group received feedback alert signals when excessive EMG activity with certain burst duration was detected while the subjects performed regular daily activities. The CO group underwent EMG recording sessions without receiving any alerts of parafunctional activity. The number of phasic burst events during sleep was compared between the BF and CO groups. RESULTS: While the number of phasic EMG events was not significantly different between the BF and CO groups at baseline, significantly smaller phasic events were observed in the BF compared to the CO group at the follow-up session (week 3) (P = .006, Tukey's HSD). Since daytime BF training is aimed at raising awareness of awake bruxism, it does not interrupt the sleep sequence or involve associated side effects. CONCLUSION: The present results suggest that EMG BF targeting for tonic EMG events during the daytime can be an effective method to regulate phasic EMG events during sleep.


Asunto(s)
Bruxismo , Bruxismo del Sueño , Adulto , Biorretroalimentación Psicológica , Electromiografía , Humanos , Masculino , Músculos Masticadores , Sueño , Adulto Joven
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