Background: Smoking is presumed to cause a decline in masticatory performance by worsening the intraoral environment in various ways. However, no longitudinal study has examined the relationship between smoking and masticatory performance.
Objectives: To clarify how smoking affects future decline in masticatory performance through a 5-year follow-up study of a general urban population.
Methods: The study participants were 494 men (mean age at baseline: 65.8 years) who participated in baseline and follow-up dental examinations in the Suita Study. The masticatory performance of the participants was evaluated using a test gummy jelly. The rate of change in masticatory performance during the follow-up period was calculated by subtracting the masticatory performance at baseline from the masticatory performance at follow-up and dividing this by the masticatory performance at baseline. Logistic regression analysis was performed, with the presence or absence of a decline in masticatory performance as the objective variable and age at baseline, number of functional teeth, periodontal status, salivary flow rate, maximum bite force, smoking status, utilisation of dental services, and follow-up years as the explanatory variables.
Results: The rate of change in masticatory performance during the follow-up period was significantly higher in smokers than in non-smokers. Logistic regression analysis showed that age, maximum bite force, and smoking were significant explanatory variables for a decline in masticatory performance.
Conclusion: A 5-year follow-up study showed that smoking causes a decline in masticatory performance in men, even after adjusting for confounding factors.
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http://dx.doi.org/10.1111/joor.13940 | DOI Listing |
J Dent Sci
January 2025
Department of Oral Hygiene, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
Background/purpose: Dentists often focus on masticatory performance (MP) rather than masticatory ability (MA) and treatment expectations when evaluating older adults. This study aimed to determine if MA aligns with MP and to explore influencing factors.
Materials And Methods: This cross-sectional study utilized a multi-stage stratified cluster sampling, including one thousand community-dwelling adults aged 60 and older.
Front Neurosci
January 2025
Neurology Associate P.C., Lincoln, NE, United States.
Introduction: As a hallmark feature of amyotrophic lateral sclerosis (ALS), bulbar involvement significantly impacts psychosocial, emotional, and physical health. A validated objective marker is however lacking to characterize and phenotype bulbar involvement, positing a major barrier to early detection, progress monitoring, and tailored care. This study aimed to bridge this gap by constructing a multiplex functional mandibular muscle network to provide a novel objective measurement tool of bulbar involvement.
View Article and Find Full Text PDFEquine Vet J
January 2025
Department of Large Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences (WULS - SGGW), Warsaw, Poland.
Background: The temporomandibular joint (TMJ) is a unique joint that enables mandibular movement. Temporomandibular diseases (TMDs) impair joint function, leading to more or less specific clinical signs.
Objectives: To compile and disseminate clinical data and research findings from existing publications on equine TMD.
Diagnostics (Basel)
January 2025
Department of Dental Prosthetics, Faculty of Dentistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania.
The study aimed to validate the diagnostic system proposed by the Standardized Tool for the Assessment of Bruxism (STAB) by correlating the results obtained based on questionnaire and non-instrumental and instrumental tools. The study had three stages (questionnaire, clinical examination, and electromyographic study). The subjects completed a questionnaire and clinical exam.
View Article and Find Full Text PDFBMC Oral Health
January 2025
Clinic of Masticatory Disorders and Dental Biomaterials, Center for Dental Medicine, University of Zurich, Zurich, Switzerland.
Purpose: The aim of this study was to compare the wear and fracture resistance of single crowns produced from newly developed 3D printer resins used to produce permanent crowns and currently used composite CAD/CAM discs, after being thermomechanically aged in a chewing simulator.
Materials And Methods: A total of 112 stainless steel die models simulating mandibular left first molars were produced, 8 for each group. Single crowns were produced from 3 different discs (Grandio Voco [GR], breCAM HIPC [HC], and Shofu HC [SF]) by CAD/CAM milling method and manufactured from from 4 different permanent composite resins (Nexdent C&B MFH [ND], Permanent Bridge Saremco [PB], VarseoSmile Crownplus [VSC], and Şenertek P-Crown [PC]) using the 3D printing method.
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