AIM: To evaluate the effect of a myofunctional appliance--the preorthodontic trainer (POT)--on the perioral and masticatory muscles by electromyography (EMG) in individuals with an Angle Class II, Division 1 malocclusion. METHODS: Twenty children were treated with a POT appliance, which had to be worn every day for 1 hour and overnight. The EMG recordings were made at the beginning and end of POT therapy during maximal clenching, swallowing, and sucking. For statistical evaluation, the Wilcoxon nonparametric test was used at the P<.05 level. RESULTS: During POT treatment, the EMG value for clenching of the anterior temporal muscle decreased significantly (P<.001). Also, for the mentalis muscle, the EMG value during clenching decreased significantly; for the orbicularis oris muscle, this was true for sucking (P<.05) and clenching (P<.01). For the masseter muscle, all EMG values were decreased during treatment but significantly only for clenching. CONCLUSION: During the 6 months of POT treatment, the perioral and masticatory muscles of Class II, Division 1 patients improved significantly.
AIM: To evaluate the effect of a myofunctional appliance--the preorthodontic trainer (POT)--on the perioral and masticatory muscles by electromyography (EMG) in individuals with an Angle Class II, Division 1 malocclusion. METHODS: Twenty children were treated with a POT appliance, which had to be worn every day for 1 hour and overnight. The EMG recordings were made at the beginning and end of POT therapy during maximal clenching, swallowing, and sucking. For statistical evaluation, the Wilcoxon nonparametric test was used at the P<.05 level. RESULTS: During POT treatment, the EMG value for clenching of the anterior temporal muscle decreased significantly (P<.001). Also, for the mentalis muscle, the EMG value during clenching decreased significantly; for the orbicularis oris muscle, this was true for sucking (P<.05) and clenching (P<.01). For the masseter muscle, all EMG values were decreased during treatment but significantly only for clenching. CONCLUSION: During the 6 months of POT treatment, the perioral and masticatory muscles of Class II, Division 1 patients improved significantly.
Authors: Alessio Danilo Inchingolo; Assunta Patano; Giovanni Coloccia; Sabino Ceci; Angelo Michele Inchingolo; Grazia Marinelli; Giuseppina Malcangi; Valentina Montenegro; Claudia Laudadio; Chiara Di Pede; Mariagrazia Garibaldi; Zamira Kruti; Maria Elena Maggiore; Antonio Mancini; Ludovica Nucci; Ioana Roxana Bordea; Antonio Scarano; Felice Lorusso; Gianna Dipalma; Daniela Di Venere; Filippo Cardarelli; Francesco Inchingolo Journal: Int J Environ Res Public Health Date: 2022-01-16 Impact factor: 3.390