Association between missing tooth count and mortality: A systematic review

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  • Koka Sreenivas
    Clinical Professor, Advanced Prosthodontics, Loma Linda University Interim Chair, Restorative Dentistry, UCLA Private Practice Limited to Removable and Implant Prosthodontics, Koka Dental Clinic
  • Gupta Avni
    Center for Surgery and Public Health, Brigham and Women's Hospital, Harvard Medical School, Harvard T.N. Chan School of Public Health

書誌事項

公開日
2018
DOI
  • 10.1016/j.jpor.2017.08.003
公開者
公益社団法人 日本補綴歯科学会

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説明

<p>Purpose: The purpose of this review was to analyze existing literature on the relationship between tooth count and mortality by evaluating the findings in the context of methodological variations. We aimed at addressing the question of whether preserving natural teeth can impact mortality.</p><p>Study selection: PubMed, Web of Science and CINAHL databases were systematically searched using various combinations of related and synonymous keywords for "tooth count" and "mortality". The references of included articles were also evaluated for inclusion. Overall 49 studies found to be eligible were critically evaluated and their key findings were summarized.</p><p>Results: Studies were conducted in various continents and differed substantially in regards to their sample size, population, methodology, the definition of the tooth count variable, the confounders as well as the mediators accounted for in the analysis. Follow-up period ranged from 1 to 56 years.</p><p>Conclusions: Although high variability in the studies precludes a definite conclusion about the relationship between number of teeth and mortality, the overall finding from this review is that reduced tooth count is associated with higher mortality. However the impact of factors such as smoking, healthcare access, baseline co-morbidity and risk profile, dental and periodontal health, the presence of dental prosthesis as well as socio-economic status, in mediating whole or part of the association cannot be overlooked and needs further investigation using more standard methodologies. Any differences in males vs. females, as well as among different age groups, will also need further consideration in the future studies.</p>

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