Abstract
The purpose of the study was to evaluate the longitudinal changes in electromyographic
(EMG) activity of the masseter and temporalis muscles before and after temporomandibular
joint (TMJ) total joint replacement (TJR) in ankylosis patients. A prospective longitudinal
study was designed on patients undergoing unilateral or bilateral TMJ-TJR. EMG activity
at rest and maximal voluntary contraction (MVC) was recorded for the muscles preoperatively
(T0), and at one-week (T1) and six-month (T2) follow up. The study sample was composed
of 10 (male: female 2.3:1) patients undergoing TMJ-TJR. The number of unilateral and
bilateral cases was three and seven, respectively. In both unilateral and bilateral
cases a statistically significant reduction in EMG activity of the masseter and anterior
temporalis muscles was observed at T1. At T2, EMG activity of the muscles was found
to be approaching the preoperative value. In unilateral cases, when the affected side
at T0, T1, and T2 was compared with T0 for the unaffected side, statistically significant
differences were seen for the masseter. In the case of the temporalis, similar results
were seen except at T2 for the postural rest position. The results indicate that re-attachment
of the masseter and temporalis muscles occurs progressively post TMJ-TJR.
Keywords
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References
- Outcome of stock total joint replacement with fat grafting in adult temporomandibular joint ankylosis patients.J Oral Maxillofac Surg. 2021; 79: 75-87
- Alloplastic total joint replacement in management of temporomandibular joint ankylosis.J Oral Biol Craniofac Res. 2021; 11: 457-465
- Coronoid process hyperplasia: a systematic review of the literature from 1995.Int J Oral Maxillofac Surg. 2012; 41: 1483-1489
- Oral submucous fibrosis: its pathogenesis and management.Br Dent J. 1986; 160: 429-434
- Degenerative changes in masseter and temporalis muscles in limited mouth opening and TMJ ankylosis.J Oral Pathol Med. 1990; 19: 423-425
- Longitudinal electromyographic changes in masseter and anterior temporalis muscle before and after temporomandibular joint arthroplasty in ankylosis patients.J Stomatol Oral Maxillofac Surg. 2021; 122: 573-577
- The reattachment of the masseter muscle to the mandible.Oral Surg Oral Med Oral Pathol. 1968; 25: 889-895
- Improvements in balance after total hip replacement.J Bone Joint Surg Br. 2005; 87: 1337-1343
- Proposal of surface electromyography signal acquisition protocols for masseter and temporalis muscles.Res Biomed Eng. 2017; 33 (last accessed 18 March 2022)https://doi.org/10.1590/2446-4740.03617
- Mechanical verification of soft-tissue attachment on bioactive glasses and titanium implants.Acta Biomater. 2008; 4: 1118-1122
- Firing rates of motor units during strong dynamic contractions.Muscle Nerve. 2005; 32: 316-325
- Motor unit activity in the voluntary contraction of human muscle.J Physiol. 1954; 125: 322-335
- Coronoid hyperplasia in chronic progressive trismus.Med Hypotheses. 2011; 77: 863-868
- Masticatory muscle transposition in primates: effects on craniofacial growth.J Maxillofac Surg. 1983; 11: 149-156
- Muscular and mandibular adaptation after lengthening, detachment, and reattachment of the masseter muscle.J Oral Surg. 1981; 39: 656-665
- Masticatory muscle activity in children with a skeletal or dentoalveolar open bite.Eur J Orthod. 2010; 32: 453-458
- Attachment and proliferation of osteoblasts and fibroblasts on biomaterials for orthopaedic use.Biomaterials. 1995; 16: 287-295
- Clinical importance of morphology and nomenclature of distal attachment of temporalis tendon.J Oral Maxillofac Surg. 2012; 70: 557-561
- Electromyographic activity of masticatory muscles and mandibular movement during function in marginal mandibulectomy patients.J Med Dent Sci. 2003; 50: 257-264
- Electromyographic activity of human masticatory muscles in normal young people. Statistical evaluation of reference values for clinical applications.J Oral Rehabil. 1993; 20: 271-280
- The size and distribution of fiber types in jaw muscles: a review.J Craniomandib Disord. 1992; 6: 192-201
- Specialized cranial muscles: how different are they from limb and abdominal muscles?.Cells Tissues Organs. 2003; 174: 73-86
- Fiber-type differences in masseter muscle associated with different facial morphologies.Am J Orthod Dentofacial Orthop. 2005; 127: 37-46
- An electromyographic study of mandibular position in response to changes in body position.J Prosthet Dent. 1983; 49: 271-275
- Postural activity in the muscles of mastication with the subject upright, inclined, and supine.Scand J Dent Res. 1970; 78: 417-424
- The influence of occlusion on jaw and neck muscle activity: a surface EMG study in healthy young adults.J Oral Rehabil. 2006; 33: 341-348
- Masticatory muscle fatigue: endurance times and spectral changes in the electromyogram during the production of sustained bite forces.Arch Oral Biol. 1992; 37: 521-529
- Comparative evaluation of thickness of jaw-closing muscles in patients with long-standing bilateral temporomandibular joint ankylosis: a retrospective case-controlled study.Clin Oral Investig. 2015; 19: 421-427
- A comparison of clinical follow-up of different total temporomandibular joint replacement prostheses: a systematic review and meta-analysis.J Oral Maxillofac Surg. 2018; 76: 294-303
- How does a unilateral temporomandibular joint replacement affect bilateral masseter and temporalis muscle activity? A prospective study.J Oral Maxillofac Surg. 2021; 79: 314-323
Article Info
Publication History
Published online: February 01, 2022
Accepted:
January 12,
2022
Received in revised form:
January 3,
2022
Received:
November 28,
2021
Identification
Copyright
© 2022 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
