J Adv Prosthodont.  2016 Jun;8(3):187-193. 10.4047/jap.2016.8.3.187.

Power spectrum density analysis for the influence of complete denture on the brain function of edentulous patients - pilot study

• Perumal P
• Chander GN
• Anitha KV
• Reddy JR
• Muthukumar B

• KMID: 2376842
• DOI: http://doi.org/10.4047/jap.2016.8.3.187

Abstract

PURPOSE
This pilot study was to find the influence of complete denture on the brain activity and cognitive function of edentulous patients measured through Electroencephalogram (EEG) signals.
MATERIALS AND METHODS
The study recruited 20 patients aged from 50 to 60 years requiring complete dentures with inclusion and exclusion criteria. The brain function and cognitive function were analyzed with a mental state questionnaire and a 15-minute analysis of power spectral density of EEG alpha waves. The analysis included edentulous phase and post denture insertion adaptive phase, each done before and after chewing. The results obtained were statistically evaluated.
RESULTS
Power Spectral Density (PSD) values increased from edentulous phase to post denture insertion adaption phase. The data were grouped as edentulous phase before chewing (EEG p1-0.0064), edentulous phase after chewing (EEG p2-0.0073), post denture insertion adaptive phase before chewing (EEG p3-0.0077), and post denture insertion adaptive phase after chewing (EEG p4-0.0096). The acquired values were statistically analyzed using paired t-test, which showed statistically significant results (P<.05).
CONCLUSION
This pilot study showed functional improvement in brain function of edentulous patients with complete dentures rehabilitation.

Keyword

Power Spectral Density; Fast Fourier Transform; Brain activity; Geriatric; Electroencephalography; Complete denture

MeSH Terms

Brain*
Denture, Complete*
Dentures
Electroencephalography
Humans
Mastication
Pilot Projects*
Rehabilitation

Figure

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  Fig. 1 Study procedure flow chart.

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  Fig. 2 Flow chart for EEG measurement.

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  Fig. 3 Data acquisition of EEG.

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  Fig. 4 Flow Chart for EEG Analysis.

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  Fig. 5 Power spectral density value.

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  Fig. 6 Mean values of edentulous phase and post denture insertion adaptive phase before and after chewing.

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