The Open Dentistry Journal




ISSN: 1874-2106 ― Volume 13, 2019

Low Bone Mass Is a Risk Factor in Periodontal Disease-Related Tooth Loss in Patients with Intellectual Disability



Yoko Numoto1, Takayuki Mori2, Shigeru Maeda3, Yumiko Tomoyasu1, Hitoshi Higuchi3, Masahiko Egusa2, Takuya Miyawaki1, *
1 Department of Dental Anesthesiology and Special Care Dentistry, Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
2 Center of the Special Needs Dentistry Okayama University Hospital, Okayama, Japan
3 Department of Dental Anesthesiology, Okayama University Hospital, Okayama, Japan

Abstract

Teeth are fundamental to maintaining good quality of life, but are often lost prematurely in individuals with intellectual disability. Furthermore, since bone mass decreases in menopausal women, women with intellectual disability have an augmented risk of losing their teeth. However, the relationship between periodontal disease-related tooth loss and bone mass has never been studied specifically in patients with intellectual disability. This study evaluated this relationship in a retrospective cohort study.

Participants were female dental patients aged between 20 and 50 years and with an intellectual disability, who were treated in the Special Needs Dentistry unit of the Okayama University Hospital from January 2009 to March 2010. Logistic regression analysis was used to analyze which factors affect periodontal disease-related tooth loss. Information relating to 12 predictor variables, including age and bone mass level, was derived from medical records.

The 27 subjects had a total of 704 teeth at the time of initial examination, but 20 teeth (2.8%) had been lost owing to periodontal disease by the time bone mass measurements were recorded. Results of the multinomial logistic regression analysis indicated a significant odds ratio for three items: number of missing teeth at the time of initial examination, bone mass, and living environment.

This result suggests that low bone mass is an independent risk factor in tooth loss secondary to periodontal disease in patients with intellectual disability. Dentists should thus take account of this heightened risk of tooth loss when caring for post-menopausal women with intellectual disability.

Keywords: : Bone mass, cohort study, intellectual disability, menopause, osteoporosis, periodontal disease.


Article Information


Identifiers and Pagination:

Year: 2013
Volume: 7
First Page: 157
Last Page: 161
Publisher Id: TODENTJ-7-157
DOI: 10.2174/1874210601307010157

Article History:

Received Date: 16/9/2013
Revision Received Date: 26/10/2013
Acceptance Date: 31/10/2013
Electronic publication date: 29 /11/2013
Collection year: 2013

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© Numoto et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.


* Address correspondence to this author at the Department of Dental Anaesthesiology and Special Care Dentistry, Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8525, Japan; Tel/fax: +81-86-235-6721; E-mail: miyawaki@md.okayama-u.ac.jp


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