Average chewing pattern improvements following Disclusion Time reduction

• Published in: Cranio 2017-05, Vol.35 (3), p.135-151
• Main Authors: Kerstein, Robert B., Radke, John
• Format: Article
• Language: English
• Subjects: Average chewing pattern (ACP); Dental Occlusion, Balanced; Dental Stress Analysis - methods; Dentistry; Disclusion Time Reduction; Electrodiagnosis - methods; Electrognathography (EGN); Electromyography (EMG); Electromyography - methods; Humans; ICAGD coronoplasty; ICAGD enameloplasty; Malocclusion - physiopathology; Malocclusion - therapy; Mastication - physiology; Masticatory Muscles - physiopathology; Muscle Contraction; Occlusal Adjustment - methods; Signal Processing, Computer-Assisted; T-Scan
• ISSN: 0886-9634; 2151-0903
• DOI: 10.1080/08869634.2016.1190526

Objectives: Studies involving electrognathographic (EGN) recordings of chewing improvements obtained following occlusal adjustment therapy are rare, as most studies lack 'chewing' within the research. The objectives of this study were to determine if reducing long Disclusion Time to short Disclusion Time with the immediate complete anterior guidance development (ICAGD) coronoplasty in symptomatic subjects altered their average chewing pattern (ACP) and their muscle function. Methods: Twenty-nine muscularly symptomatic subjects underwent simultaneous EMG and EGN recordings of right and left gum chewing, before and after the ICAGD coronoplasty. Statistical differences in the mean Disclusion Time, the mean muscle contraction cycle, and the mean ACP resultant from ICAGD underwent the Student's paired t-test (α = 0.05). Results: Disclusion Time reductions from ICAGD were significant (2.11-0.45 s. p = 0.0000). Post-ICAGD muscle changes were significant in the mean area (p = 0.000001), the peak amplitude (p = 0.00005), the time to peak contraction (p