scholarly journals Masticatory muscle tendon-aponeurosis hyperplasia: A new clinical entity of limited mouth opening

2016 ◽  
Vol 52 (2) ◽  
pp. 41-48 ◽  
Author(s):  
Tsuyoshi Sato ◽  
Tetsuya Yoda
Keyword(s):  
Mouth Opening ◽  
Clinical Entity ◽  
Masticatory Muscle ◽  
Limited Mouth Opening

Limited mouth opening following induction of anesthesia in two patients with masticatory muscle tendon-aponeurosis hyperplasia

2011 ◽  
Vol 23 (7) ◽  
pp. 598-600 ◽  
Author(s):  
Yoshinari Morimoto ◽  
Mitsutaka Sugimura ◽  
Hiroshi Hanamoto ◽  
Hitoshi Niwa
Keyword(s):  
Mouth Opening ◽  
Masticatory Muscle ◽  
Limited Mouth Opening

scholarly journals Anesthetic Considerations for Masticatory Muscle Tendon-Aponeurosis Hyperplasia: A Report of 24 Cases

2012 ◽  
Vol 59 (2) ◽  
pp. 87-89 ◽  
Author(s):  
Ikumi Yamamoto ◽  
Satoki Inoue ◽  
Masahiko Kawaguchi ◽  
Tetsuji Kawakami ◽  
Tadaaki Kirita ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Mouth Opening ◽  
Case Series ◽  
Masticatory Muscles ◽  
Masticatory Muscle ◽  
Limited Mouth Opening ◽  
Rapid Induction ◽  
Airway Problem ◽  
Anesthetic Considerations ◽  
Macintosh Laryngoscopy

Masticatory muscle tendon-aponeurosis hyperplasia (MMTAH) is a new disease entity characterized by limited mouth opening due to contracture of the masticatory muscles, resulting from hyperplasia of tendons and aponeuroses. In this case series, we report what methods of airway establishment were conclusively chosen after rapid induction of anesthesia. We had 24 consecutive patients with MMTAH who underwent surgical release of its contracture under general anesthesia. Rapid induction of anesthesia with propofol and rocuronium was chosen for all the cases. In 7 cases, intubation using the Macintosh laryngoscopy was attempted; however, 2 of those cases failed to be intubated on the first attempt. Finally, intubation using the McCoy laryngoscopy or fiber-optic intubation was alternatively used in these 2 cases. In 7 cases, the Trachlight was used. In the remaining 10 cases, fiber-optic intubation was used. Limited mouth opening in patients with MMTAH did not improve with muscular relaxation. “Square mandible” has been reported to be one of the clinical features in this disease; however, half of these 24 patients lacked this characteristic, which might affect a definitive diagnosis of this disease for anesthesiologists. An airway problem in patients with MMTAH should not be underestimated, which means that other intubation methods rather than direct laryngoscopy had better be considered.

scholarly journals Limited mouth opening with a square mandible configuration: a case of masticatory muscle tendon-aponeurosis hyperplasia

2015 ◽  
Vol 2015 (3) ◽  
pp. rjv020-rjv020 ◽  
Author(s):  
T. Sato ◽  
N. Hayashi ◽  
Y. Enoki ◽  
M. Okubo ◽  
C. Nakaoka ◽  
...  
Keyword(s):  
Mouth Opening ◽  
Masticatory Muscle ◽  
Limited Mouth Opening

(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).

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