Assessment of suprahyoid muscle myodynamic balance and oral humoral immunity in children with physiologic and distal occlusion
Relevance. The possibility to detect chewing muscle myodynamic imbalance based on the oral humoral immunity parameters is of theoretical and practical interest for planning the treatment duration and predicting the treatment results. Purpose. To evaluate the detection of suprahyoid muscle myodynamic imbalance based on the oral humoral immunity parameters in children with physiologic and distal occlusion.Materials and methods. The study involved 131 patients aged 6 to 12 years from the Children's Clinical Dental Clinic No. 2 in Voronezh: 94 children with distal occlusion and 37 children with physiologic occlusion. The study determined the average amplitude of suprahyoid muscle bioelectric activity. We quantified the total oral fluid IgG, IgA, IgM and sIgA to evaluate the oral humoral immunity.Results. In children with physiologic occlusion, it is possible to predict myodynamic imbalance of suprahyoid muscles at sIgA equal or higher than 34.060 pg/ml, at IgG value equal or more than 27.300 pg/ml. In the group of patients with distal occlusion, the assessment of sIgA, IgG, IgA and IgM did not detect statistically significant differences (p = 0.182; p = 0,921; p = 0,087; p = 0.226, respectively) between the patients with normal and impaired myodynamic balance of suprahyoid muscles.Conclusion. In the group of children with physiologic occlusion, sIgA and IgG have the prognostic potential for the early diagnosis of the suprahyoid muscle myodynamic imbalance development, which is prognostically significant for the detection and prevention of hyoid muscle dysfunction development. The study did not reveal significant predictors among sIgA, IgG, IgA, IgM for the hyoid muscle myodynamic imbalance detection in the group with distal occlusion.