Hubungan Postur Kepala pada Maloklusi Kelas II Skeletal terhadap Lebar Saluran Nafas dan Posisi Tulang Hyoid

Abstract

Background: The human body is interconnected, if all body segments humans are balanced, then good posture. The head balance involves skulls, spine, mandible, hyoid bone, upper respiratory tract, muscles and tongue. Comorbid skeletal class II malocclusion with extension head posture. Hyoid bone functions to maintain the balance of the head posture. Objective: to see the relationship of comorbid skeletal class II malocclusion with head posture, relationship head posture of skeletal class II malocclusion with the width of the respiratory tract, and relationship head posture of skeletal class II malocclusion with hyoid bone position. Materials and methods: The research design was observational analytic using digital photographs of the six upper anterior teeth of 70 patients undergoing orthodontic treatment at USU General Hospital. The six anterior teeth were given plaque disclosing material 3 tone to check the level of plaque maturation. The staining of the plaque is cleaned to then examine the level of the white spot lesion. Examination was carried out from the intraoral photograph of the patient by dividing the four parts of the tooth surface. Results: The chi-square test showed that there was no significant relationship between the skeletal class II malocclusion and the head posture (P> 0.05). There is no significant relationship between the head posture in the skeletal class II malocclusion and the respiratory tract (P> 0.05). There is no significant relationship between the head posture in the skeletal class II malocclusion with vertical position and angular hyoid bone (P> 0.05). There is a significant relationship in the posture head of skeletal class II malocclusion sub -group prognati maxillary and retrognati mandible with the anteroposterior position of hyoid bone. Conclusions: Hyoid bone position is more posterior in skeletal class II malocclusion s sub -group prognati maxillary and retrognati mandible.