Comparison of Masticatory Muscle Effort when Chewing on an Anterior Bite Plane Fabricated from Hard and Soft Materials
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Abstract
Background: Different anterior bite plane materials may affect masticatory muscle effort (ME) differently. ME is defined in this study as the electrical activity used per unit of bite force. Objective: We aimed to compare the effects of a hard acrylic resin anterior bite plane (HARD) and a semi-soft thermoplastic anterior bite plane (SOFT) on ME over a 3-month period in children with deep bites. Materials and methods: Thirty-eight children with deep bites were randomly assigned to either the HARD or SOFT group (n = 19 each). Masseter and anterior temporalis activity along with maximum bite force (MBF) were measured during appliance placement. Anterior and posterior ME were calculated by dividing muscle activity by the anterior and posterior MBF, respectively. Data were collected at baseline (T0), at one month (T1), and at three months (T2). Within- and between-group comparisons were performed (α = 0.05). Results: Neither significant intra-group nor between-group of ME was found throughout the study period (P > 0.05). Conclusion: Neither a hard nor soft anterior bite plane had a disadvantageous effect on ME as none of the ME values exceeded the baseline values during treatment.
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References
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