The Open Dentistry Journal

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Orofacial Functions and Chewing Effiency in Elderly Patients with Parkinson’s Disease Rehabilitated with Removable Prostheses

Corsalini Massimo1, *, Rapone Biagio2, Cagnetta Giovanni1, Carossa Massimo3, Sportelli Pasquale1, De Giacomo Andrea2, Laforgia Alessandra1, Di Venere Daniela1
1 Dental School, Interdisciplinary Department of Medicine, University of Bari, Bari, Italy
2 Basic Medical Sciences, Neurosciences and Sense Organs Department, University of Bari, Bari, Italy
3 Dental School, Turin University, Turin, Italy



Parkinson’s Disease (PD) is the second most common neurodegenerative disease after Alzheimer's disease. It is one of the movement disorders that can affect oro-facial conditions. It is more common in the elderly, having an average age of onset of around 60 years.


The aim was to study orofacial functions in patients suffering from PD with partial or total edentulism, wearing removable prostheses.


Forty-eight (48) elders, rehabilitated with removable dentures, were included: 24 patients suffering from Parkinson's disease constitute the Study Group (SG), and 24 subjects not suffering from Parkinson's disease or neurological degenerative diseases represent the Control Group (CG).

In SG, the severity of Parkinson's disease was assessed according to the Unified Parkinson's Disease Rating objective motor scale III, and oro-facial dysfunctions were evaluated using Nordic Orofacial Test-Screening (NOT-S). The duration of the use of dental prostheses expressed in years has been reported. In both the groups, the subjective chewing index for the analysis of masticatory ability and the two-color chewing gum test for the analysis of masticatory efficiency were conducted .


There was a statistically significant difference between the SG and CG compared to the NOT-S (P = 0.001).

Analyzing the study group, a statistically significant correlation was found between the masticatory efficiency and prosthetic years of use (rs = 0.436; P <0.05); instead, no statistically significant correlation was found between the masticatory efficiency and the severity of Parkinson's disease.


In our study, we did not find differences between SG and CG in terms of the degree of masticatory efficiency; therefore, only a correlation between the duration of use of dental prostheses and the degree of masticatory efficiency was found.

Keywords: Parkinson’s disease, Removable prostheses, Orofacial functions, Chewing efficiency, Degenerative disease, Geriatric patients.

Article Information

Identifiers and Pagination:

Year: 2020
Volume: 14
First Page: 13
Last Page: 18
Publisher Id: TODENTJ-14-13
DOI: 10.2174/1874210602014010013

Article History:

Received Date: 04/11/2019
Revision Received Date: 17/12/2019
Acceptance Date: 27/12/2019
Electronic publication date: 14/02/2020
Collection year: 2020

© 2020 Massimo et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: ( This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Dental School, Interdisciplinary Department of Medicine, University of Bari, Place Giulio Cesare, 11 Bari 70121, Italy; Tel: 00390805593325; Fax: 00390805478743; E-mail:

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