scholarly journals Development of masticatory function evaluated through electromyographic studies for masticatory muscles in children

2006 ◽  
Vol 13 (1) ◽  
pp. 11-15 ◽  
Author(s):  
Yasuo Tamura
Keyword(s):  
Masticatory Muscles ◽  
Masticatory Function

scholarly journals Masticatory function in temporomandibular dysfunction patients: electromyographic evaluation

2005 ◽  
Vol 13 (4) ◽  
pp. 360-365 ◽  
Author(s):  
Giédre Berretin-Felix ◽  
Katia Flores Genaro ◽  
Inge Elly Kiemle Trindade ◽  
Alceu Sergio Trindade Júnior
Keyword(s):  
Masseter Muscle ◽  
Computer Software ◽  
Masticatory Muscles ◽  
Control Group ◽  
Electromyographic Activity ◽  
Temporomandibular Dysfunction ◽  
Masticatory Function ◽  
Cashew Nut ◽  
Materials Used ◽  
Number Of Cycles

Temporomandibular dysfunction (TMD) is a complex disturbance that involves the masticatory muscles and/or temporomandibular joint, causing damage to the masticatory function. This study evaluated the electromyographic activity of the masseter muscle during habitual mastication of bread, apple, banana, cashew nut and paraffin film (Parafilm M) in 25 adult subjects, of both gender, with TMD. The results were compared to those of a control group, composed of 15 adult subjects, of both sexes, free of signs and/or symptoms of TMD. The MYO-TRONICS Inc., K6-I computer software was used for electromyographic processing and analyzed the following parameters: duration of the act, duration of the masticatory cycle and number of cycles. No significant differences were found between subjects in the control group and individuals with TMD as to duration of the masticatory act and of the masticatory cycle, considering all materials used for mastication. The duration of the masticatory act and cycle was longer during mastication of paraffin film in both groups. The number of masticatory cycles was higher for mastication of apple in comparison to mastication of banana, in both groups. It can be concluded that the consistency of foods influences the duration parameters of the act, duration of the cycle and the number of masticatory cycles, and the behavior of the masticatory muscles in individuals with TMD during habitual mastication is similar to that verified in individuals without TMD.

scholarly journals Mandibular single-implant overdenture as an alternative for full arch rehabilitations

2019 ◽  
Vol 18 ◽  
pp. e191469
Author(s):  
Mariana Barbosa Câmara-Souza ◽  
Olívia Maria Costa de Figueredo ◽  
Camilla Fraga do Amaral ◽  
Talita Malini Carletti ◽  
Renata Cunha Matheus Rodrigues Garcia
Keyword(s):  
Quality Of Life ◽  
Low Income ◽  
Masticatory Muscles ◽  
Oral Rehabilitation ◽  
Patient’S Satisfaction ◽  
Masticatory Function ◽  
Pubmed Database ◽  
Implant Overdenture ◽  
Single Implant

Oral rehabilitation with mandibular single-implant overdentures (SIO) has been characterized as a solution to improve retention and stability of conventional complete dentures (CD). Among the benefits of this therapy, it can be mentioned minimally invasive surgery, simple prosthetic technique, better retention, and significantly reduced costs. However, the application of this protocol in daily clinic is still not widespread. Aim: Thus, this study aimed to perform a literature review to address the clinical characteristics of this rehabilitation, when compared to two-implant mandibular overdentures and CD. Methods: For this, a search was conducted in the PubMed database, considering articles published in English language, without date limitation. Results: It was found 243 manuscripts, of which 20 were compatible with the aim of this study after title/abstract reading. The selected papers focused on masticatory muscles function, satisfaction levels and self-reported quality of life, as well as surgical and prosthetic outcomes, such as maintenance, repair and implant failure rates. All evaluated manuscripts showed similar masticatory function and patient's satisfaction with SIO and two-implant overdenture, while results for a SIO were greater when compared to rehabilitations with CD. In addition, SIO have proven to do not damage the implant, being implant loss close to zero. However, the prosthesis fracture adjacent to the implant was a recurrent clinical outcome, which requires further studies to solve this impairment. Conclusion: Thus, it can be concluded that SIO represents an alternative treatment for frail elders or low-income patients, leading to higher masticatory function, as well as improved quality of life.

scholarly journals Effects of Chewing Exerciser on the Recovery of Masticatory Function Recovery after Orthognathic Surgery: A Single-Center Randomized Clinical Trial, a Preliminary Study

Medicina ◽  
2020 ◽  
Vol 56 (9) ◽  
pp. 483
Author(s):  
Hoon Joo Yang ◽  
Ik Jae Kwon ◽  
Akram Abdo Almansoori ◽  
Yoojung Son ◽  
Bongju Kim ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Orthognathic Surgery ◽  
Mouth Opening ◽  
Recovery Process ◽  
Masticatory Muscles ◽  
Digastric Muscle ◽  
Sagittal Split Ramus Osteotomy ◽  
Temporal Muscle ◽  
Masticatory Function

Background and Objectives: The aim of this study was to evaluate the effects of the chewing exerciser (CE) on the functional recovery of the masticatory muscles after orthognathic surgery. Material and Methods: This randomized clinical trial was conducted in patients undergoing bimaxillary orthognathic surgery including bilateral sagittal split ramus osteotomy. Postoperative physiotherapy (PT) was performed for 3 weeks starting 3 weeks after the surgery. The patients were randomly divided into two groups: control (Con) (conventional PT) group and CE group (use of CE in addition to conventional PT). The masticatory function was evaluated based on three standards: bite force (BF), amount of mouth opening (MO), and surface electromyography (sEMG) of the anterior temporal muscle (TA), masseter muscle (MM), sternocleidomastoid muscle, and anterior belly of digastric muscle before, 3 weeks (before PT) and 6 weeks after the surgery (after PT). Results: Finally, 22 subjects participated in this study: 10 patients for Con group and 12 patients for CE group. In both groups, the BF, which was reduced significantly after the surgery, recovered after the PT similar to that before the surgery. In both groups, the MO was also significantly reduced by the surgery. However, it did not recover as much, as it was before the surgery after applying the PT. There was no difference in BF and MO between the two groups. All muscles did not show significant changes in sEMG by surgery and PT at both resting and clenching states. Conclusion: Applying CE as a PT after orthognathic surgery did not cause any harmful side effects. In both groups, the weakened muscle activity after orthognathic surgery (OGS) was adequately restored 6 weeks after the surgery. However, CE did not offer a statistically significant benefit to the masticatory function in the recovery process after OGS.

Changes in masticatory function after injection of botulinum toxin type A to masticatory muscles

2013 ◽  
Vol 40 (12) ◽  
pp. 916-922 ◽  
Author(s):  
H. U. Park ◽  
B. I. Kim ◽  
S. M. Kang ◽  
S. T. Kim ◽  
J. H. Choi ◽  
...  
Keyword(s):  
Botulinum Toxin ◽  
Botulinum Toxin Type A ◽  
Type A ◽  
Botulinum Toxin Type ◽  
Masticatory Muscles ◽  
Masticatory Function

Masticatory function improvement with the use of mandibular single-implant overdentures in edentulous subjects: a systematic literature review

2020 ◽  
Vol 69 (4) ◽  
Author(s):  
Mayara A. Pinheiro ◽  
Ingrid A. Meira ◽  
Marcela B. Magno ◽  
Lucianne C. Maia ◽  
Renata C. Rodrigues Garcia
Keyword(s):  
Literature Review ◽  
Systematic Literature Review ◽  
Masticatory Function ◽  
Single Implant

Electromyographical Observations on the Behavior of Masticatory Muscles during Chewing Various Foods

1966 ◽  
Vol 10 (2) ◽  
pp. 163-172 ◽  
Author(s):  
Hiromichi Tsuru ◽  
Yoshinori Hirota ◽  
Takao Maruyama ◽  
Takao Akashi
Keyword(s):  
Masticatory Muscles

(Preprint)

2018 ◽  
Author(s):  
Dr Malathi Dayalan ◽  
Dr Sudeshna Sharma ◽  
Dr Shweta Poovani ◽  
Dr Saher Altaf
Keyword(s):  
Myofascial Pain ◽  
Mouth Opening ◽  
Masticatory Muscles ◽  
Matched Pair ◽  
Masticatory Muscle ◽  
Muscle Disorders ◽  
Occlusal Contact ◽  
Group I ◽  
Group Ii

BACKGROUND Masticatory system is a complex functional unit, primarily engaged in chewing, swallowing and breathing functions, and some parts are involved in taste recognition and determination of food consistency. Sophisticated functional performances of speech and emotional expressions are specifically human qualities. Irregularities in occlusion appears to be the precipitating factor in the pathogenesis of myofascial pain dysfunction syndrome. Tek- Scan III records the bite length, number, distribution, timing, duration and the relative force of each tooth contact. It also records the sequence of occlusal contacts in terms of time and the associated force with each occlusal contact. The aim of this study was to treat masticatory muscle disorders with occlusal equilibration, and compare the efficacy of treatment outcomes between selective grinding and stabilization splints using Tek-Scan III. OBJECTIVE Objective of this study was to compare the efficacy of occlusal equilibration achieved through selective griding and stabilization splints using Tek-Scan III. METHODS In this in vivo study, 40 patients with masticatory muscle disorders were selected based on the inclusion and exclusion criteria. The occlusal discrepancies were analyzed using Tek-Scan III. The selected 40 subjects were then randomly divided into 2 groups based on the treatment they recieved; Group I – Selective grinding group (20) and Group II – Stabilization splint group (20). Comparison of pre-treatment and post treatment results were evaluated in terms of pain, mouth opening, left and right side force percentage as recorded through Tek-Scan III and reduction of disclusion time. Statistical analysis was carried out with Kolmogorov Smirnov test, Wilcoxon matched pair test and Mann-Whitney U test. RESULTS Wilcoxon matched pairs test demonstrated that there was statistically significant results ( p = 0.0007) in both the groups for reduction of disclusion time, elimination of pain and improved mouth opening. Patients in Group I showed better results as compared to Group II in terms of disclusion time, pain and mouth opening. CONCLUSIONS Occlusal equilibration brought about by reducing the disclusion time using the Tek- Scan III reduced the symptoms of pain in masticatory muscles. Patients in group I (Selective grinding) however showed better results when compared to patients in group II (Stabilization splints).

scholarly journals Temporomandibular Disorders and Bruxism Prevalence in a Portuguese Sample

2021 ◽  
Vol 5 (1) ◽  
pp. 37
Author(s):  
João Belo ◽  
André Almeida ◽  
Paula Moleirinho-Alves ◽  
Catarina Godinho
Keyword(s):  
Temporomandibular Joint ◽  
Temporomandibular Disorders ◽  
Temporomandibular Disorder ◽  
Masticatory Muscles ◽  
Diagnostic Aspects ◽  
Relevant Role

Temporomandibular disorder (TMD) encompasses a set of disorders involving the masticatory muscles, the temporomandibular joint and associated structures. It is a complex biopsychosocial disorder with several triggering, predisposing and perpetuating factors. In the etiology of TMD, oral parafunctions, namely bruxism, play a relevant role. The study of bruxism is complicated by some taxonomic and diagnostic aspects that have prevented achieving an acceptable standardization of diagnosis. The aim of this study was to analyze the prevalence of temporomandibular disorders and bruxism in a Portuguese sample.

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