ArticleJournal of dental sciences2020
Effects of functional training after orthognathic surgery on masticatory function in patients with mandibular prognathism.
Article in Journal of dental sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 26 citations in OpenAlex.
- Effect of Gum Chewing Training on Masseter Muscle Oxygen Dynamics.Advances in experimental medicine and biology · 2024Trial
- Individualized perioperative nutritional management in orthognathic surgery: an evidence-graded, integrated framework linking upper-airway change, feeding function, and psychological status.Frontiers in nutrition · 2026Review
- Analysis of Masseter Muscle Structure in Patients with Mandibular Asymmetry Using Ultrasonic Diagnostic Equipment.Bioengineering (Basel, Switzerland) · 2025Article
- Changes in the electromyographic activity of masticatory muscles in patients undergoing bimaxillary surgery.Acta odontologica Scandinavica · 2025Article
- Impact of myofunctional therapy on orthodontic management and orthognathic surgery outcomes: a scoping review.European journal of orthodontics · 2025Article
- Establishment of a new rehabilitation program using masticatory training food for jaw deformity patients.Journal of dental sciences · 2022Article
- Treatment decision of camouflage or surgical orthodontic treatment for skeletal Class III patients based on analysis of masticatory function.Journal of dental sciences · 2022Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background/purposeEven after surgical orthodontic treatment, the level of masticatory function in patients with jaw deformities is still lower than that of healthy subjects. The purpose of this study was to evaluate the effects of functional training program using gum chewing exercise after orthognathic surgery on masticatory function in patients with mandibular prognathism. MATERIALS AND
methodsThe study subjects were 16 patients with mandibular prognathism who underwent orthognathic surgery and 8 individuals with normal occlusion. Patients were divided into two groups (training group and non-training group; n = 8 per group). Functional training included gum chewing exercise and patient-education about masticatory function. The training; gum chewing exercise of 5 min twice a day for 90 days, started at 3 months after surgery. For each subject, electromyographic activities of masseter and temporalis muscles during maximum voluntary clenching (MVC) and jaw movement during gum chewing were recorded before and after surgical orthodontic treatment. Two parameters; activity index (AI: ratio of activity of masseter and temporalis muscles) and error index (EI: ratio of the number of abnormal chewing patterns), were used.
resultsIn the training group, the AI value during MVC increased significantly and the EI value during gam chewing decreased significantly after surgical orthodontic treatment (AI: p < 0.01; EI: p < 0.01), indicating the improvement of activity balance of masseter and temporalis muscles and conversion of the jaw movement from abnormal to normal pattern (p < 0.01).
conclusionOur findings suggested that functional training using the gum chewing and patient-education exercise improved masticatory function in patients with mandibular prognathism.
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