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VOLUME 13 , ISSUE 5 ( September-October, 2022 ) > List of Articles


Impact of Mandibular Implant-supported Overdenture on Changes of Electromyographic Activity, Brain Activity, and Cognitive Function: A Crossover Study

Noha T Alloush, Nesrin A El-Mahrouky, Shereen M Kabeel, Ramez R Mostafa, Ahmed M Elwan, Adel T Alloush, Eman Hamid

Keywords : Conventional dentures, Edentulous patients, Electroencephalography, Electromyography, Implant-supported Overdentures, Mini-mental state examination

Citation Information : Alloush NT, El-Mahrouky NA, Kabeel SM, Mostafa RR, Elwan AM, Alloush AT, Hamid E. Impact of Mandibular Implant-supported Overdenture on Changes of Electromyographic Activity, Brain Activity, and Cognitive Function: A Crossover Study. World J Dent 2022; 13 (5):441-448.

DOI: 10.5005/jp-journals-10015-2111

License: CC BY-NC 4.0

Published Online: 22-07-2022

Copyright Statement:  Copyright © 2022; The Author(s).


Aim: The aim of this study was to assess and compare the impact of a complete mandibular denture and mandibular implant-supported overdenture on electromyographic activity, brain activity, and cognitive function among the same edentulous patients. Materials and methods: Ten completely edentulous nondenture wearers were selected. To assess the brain activity and cognitive function, electroencephalogram (EEG), mini-mental state examination (MMSE) questionnaire, and electromyographic examination of temporalis and masseter muscles were used. Data was collected before complete denture construction, 1 and 3 months after complete denture construction, and 1 and 3 months after implant-supported overdenture insertion. The results were statistically analyzed with the Statistical Package for the Social Sciences (SPSS) 17.0 version using the Wilcoxon signed-rank and Friedman test. Results: The results of this study revealed a statistically significant increase in the mean amplitude of the alpha wave, improvement in cognitive function (MMSE), and activity of the temporal and masseter muscles after implant insertion compared to complete denture insertion. Conclusion: Rehabilitation with implant-retained mandibular dentures may result in increased masticatory function with better chewing and increased brain activity after chewing, which may have a significant positive effect on cognitive functions and oral and general health in edentulous patients. Clinical significance: Implant-retained mandibular dentures are a beneficial treatment option for patients at risk of, or who wish to prevent, cognitive deterioration and impairment, and maintain their general health.

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