A multilevel analysis of the importance of oral health instructions for preventing tooth loss: The 8020 Promotion Foundation Study of Japanese Dental Patients

Abstract Background Many studies have reported risk factors for tooth loss. Oral health instruction is considered effective at improving oral health behavior and oral health. However, few studies have examined the relationship of dental clinic factors, such as the number of dental hygienists and imp...

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Main Authors: Mizuki Saito, Yoshihiro Shimazaki, Kakuhiro Fukai, Michiko Furuta, Jun Aida, Yuichi Ando, Hideo Miyazaki, Masaki Kambara
Format: Article
Language:English
Published: BMC 2020-11-01
Series:BMC Oral Health
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12903-020-01319-9
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author Mizuki Saito
Yoshihiro Shimazaki
Kakuhiro Fukai
Michiko Furuta
Jun Aida
Yuichi Ando
Hideo Miyazaki
Masaki Kambara
author_facet Mizuki Saito
Yoshihiro Shimazaki
Kakuhiro Fukai
Michiko Furuta
Jun Aida
Yuichi Ando
Hideo Miyazaki
Masaki Kambara
author_sort Mizuki Saito
collection DOAJ
description Abstract Background Many studies have reported risk factors for tooth loss. Oral health instruction is considered effective at improving oral health behavior and oral health. However, few studies have examined the relationship of dental clinic factors, such as the number of dental hygienists and implementation of oral health instructions, with tooth loss. Here, we conducted a multilevel analysis to clarify the dental clinic risk factors associated with tooth loss. Methods Baseline surveys were conducted at 1216 dental clinics in 46 prefectures in Japan, and 12,399 dental patients aged 20 years and over underwent oral examinations and completed a questionnaire. The dental clinics also completed a questionnaire at baseline. A 3-year follow-up survey included 2488 patients in 585 dental clinics. Multilevel multivariate logistic regression analysis was used to examine the risk of tooth loss at the patient and clinic levels. Results Of the patient variables, older age, higher mean probing pocket depth, current or past smoking, and bleeding during tooth brushing were associated with higher risks of tooth loss. Individuals with many teeth who visited dental clinics for maintenance were at significantly lower risk of tooth loss. Of the clinic variables, patients attending dental clinics with four or more dental hygienists had a significantly lower risk of tooth loss (OR 0.68, 95% CI 0.50–0.99). Patients attending dental clinics that provide oral health instructions for 20 min or more had a significantly lower risk of tooth loss (OR 0.69, 95% CI 0.50–0.96). Conclusions In addition to individual risk factors for tooth loss, dental clinic factors such as length of oral health instruction and number of dental hygienists are associated with tooth loss. In dental clinics, ensuring sufficient time for dental hygienists to provide oral health instructions can help prevent tooth loss in dental patients.
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spelling doaj.art-307f0285a008406c97127eb9b6a79dc62022-12-22T00:27:28ZengBMCBMC Oral Health1472-68312020-11-012011910.1186/s12903-020-01319-9A multilevel analysis of the importance of oral health instructions for preventing tooth loss: The 8020 Promotion Foundation Study of Japanese Dental PatientsMizuki Saito0Yoshihiro Shimazaki1Kakuhiro Fukai2Michiko Furuta3Jun Aida4Yuichi Ando5Hideo Miyazaki6Masaki Kambara7Department of Preventive Dentistry and Dental Public Health, School of Dentistry, Aichi Gakuin UniversityDepartment of Preventive Dentistry and Dental Public Health, School of Dentistry, Aichi Gakuin University8020 Promotion Foundation8020 Promotion Foundation8020 Promotion Foundation8020 Promotion Foundation8020 Promotion Foundation8020 Promotion FoundationAbstract Background Many studies have reported risk factors for tooth loss. Oral health instruction is considered effective at improving oral health behavior and oral health. However, few studies have examined the relationship of dental clinic factors, such as the number of dental hygienists and implementation of oral health instructions, with tooth loss. Here, we conducted a multilevel analysis to clarify the dental clinic risk factors associated with tooth loss. Methods Baseline surveys were conducted at 1216 dental clinics in 46 prefectures in Japan, and 12,399 dental patients aged 20 years and over underwent oral examinations and completed a questionnaire. The dental clinics also completed a questionnaire at baseline. A 3-year follow-up survey included 2488 patients in 585 dental clinics. Multilevel multivariate logistic regression analysis was used to examine the risk of tooth loss at the patient and clinic levels. Results Of the patient variables, older age, higher mean probing pocket depth, current or past smoking, and bleeding during tooth brushing were associated with higher risks of tooth loss. Individuals with many teeth who visited dental clinics for maintenance were at significantly lower risk of tooth loss. Of the clinic variables, patients attending dental clinics with four or more dental hygienists had a significantly lower risk of tooth loss (OR 0.68, 95% CI 0.50–0.99). Patients attending dental clinics that provide oral health instructions for 20 min or more had a significantly lower risk of tooth loss (OR 0.69, 95% CI 0.50–0.96). Conclusions In addition to individual risk factors for tooth loss, dental clinic factors such as length of oral health instruction and number of dental hygienists are associated with tooth loss. In dental clinics, ensuring sufficient time for dental hygienists to provide oral health instructions can help prevent tooth loss in dental patients.http://link.springer.com/article/10.1186/s12903-020-01319-9Multilevel analysisTooth lossOral health instructionDental hygienistDental patients
spellingShingle Mizuki Saito
Yoshihiro Shimazaki
Kakuhiro Fukai
Michiko Furuta
Jun Aida
Yuichi Ando
Hideo Miyazaki
Masaki Kambara
A multilevel analysis of the importance of oral health instructions for preventing tooth loss: The 8020 Promotion Foundation Study of Japanese Dental Patients
BMC Oral Health
Multilevel analysis
Tooth loss
Oral health instruction
Dental hygienist
Dental patients
title A multilevel analysis of the importance of oral health instructions for preventing tooth loss: The 8020 Promotion Foundation Study of Japanese Dental Patients
title_full A multilevel analysis of the importance of oral health instructions for preventing tooth loss: The 8020 Promotion Foundation Study of Japanese Dental Patients
title_fullStr A multilevel analysis of the importance of oral health instructions for preventing tooth loss: The 8020 Promotion Foundation Study of Japanese Dental Patients
title_full_unstemmed A multilevel analysis of the importance of oral health instructions for preventing tooth loss: The 8020 Promotion Foundation Study of Japanese Dental Patients
title_short A multilevel analysis of the importance of oral health instructions for preventing tooth loss: The 8020 Promotion Foundation Study of Japanese Dental Patients
title_sort multilevel analysis of the importance of oral health instructions for preventing tooth loss the 8020 promotion foundation study of japanese dental patients
topic Multilevel analysis
Tooth loss
Oral health instruction
Dental hygienist
Dental patients
url http://link.springer.com/article/10.1186/s12903-020-01319-9
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