Tooth wear and socioeconomic status in childhood and adulthood: Findings from a systematic review and meta-analysis of observational studies

• Published in: Journal of dentistry 2021-12, Vol.115, p.103827-103827, Article 103827
• Main Authors: Entezami, Sheema, Peres, Karen Glazer, Li, Huihua, Albarki, Zahra'a, Hijazi, Mariam, Ahmed, Khaled E.
• Format: Article
• Language: English
• Subjects: Adolescent; Adolescents; Adult; Adults; Age; Bias; Child; Childhood; Children; Dental care; Dental erosion; Dentistry; Dentition; Dentition, Permanent; Education; Family income; Heterogeneity; Humans; Literature reviews; Meta-analysis; Nutrition research; Observational studies; Oral hygiene; Permanent dentition; Population; Population studies; Quality of life; Reviews; Risk assessment; Search engines; Sensitivity analysis; Social Class; Socioeconomic factors; Socioeconomic status; Subgroups; Systematic review; Teeth; Tooth Attrition; Tooth surface loss; Tooth wear; Tooth Wear - epidemiology; Wear
• ISSN: 0300-5712; 1879-176X
• DOI: 10.1016/j.jdent.2021.103827

To evaluate the association and level of evidence between socioeconomic status (SES) and tooth wear (TW) in children, adolescents, and adults. Eligibility criteria comprised population-based observational studies assessing the association between SES and TW in permanent dentition of adolescents and adults. Interventional and descriptive studies or those without an internal comparison between exposed and nonexposed groups were excluded. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were applied where applicable. Risk of bias (RoB) was assessed using the Newcastle–Ottawa scale. Meta-analyses were conducted to estimate the pooled effect measures. Q-statistic, I2statistic, subgroup and sensitivity analyses assessed study heterogeneity. PubMed/Medline, Embase, Scopus, Web of Science, LILACS, SciELO, Cochrane Library, and Google Scholar databases were searched for articles published in English between 1st January 1980 and 31st March 2021. Sixty-five studies were included, involving 63,893 participants in over 30 countries. A positive association was found between TW and education (OR=1.25 [0.96; 1.62]), family income (OR=1.18 [0.91; 1.53]), and private school (OR= 1.24 [0.90; 1.72]) among adolescents. Higher educated adults had a lower risk for TW (OR=0.70 [0.52; 0.93]). Most included studies had a moderate RoB. Limitations relating to population representation and assessment methodologies were identified in the included studies. SES was associated with TW with its direction depending on the individuals’ age. The overall quality of evidence was moderate. SES should be included as part of the routine screening and risk assessment for tooth wear.