Epidemiology and Risk Factors of Tooth Loss among Iranian Adults: Findings from a Large Community-Based Study

Abstract

Objectives. To investigate the prevalence of tooth loss and different prosthetic rehabilitations among Iranian adults, as well as the potential determinants of tooth loss. Methods. In a cross-sectional community-based study conducted among 8094 Iranian adults living in Isfahan province, a self-administered questionnaire was used to assess epidemiologic features of tooth loss. Results. Thirty-two percent of subjects had all their teeth, 58.6% had lost less than 6, and 7.2% of participants had lost more than 6 teeth. One hundred and sixty-nine individuals (2.2%) were edentulous. Among participants, 2.3% had single jaw removable partial denture, 3.6% had complete removable denture in both jaws, and 4.6% had fixed prosthesis. Others reported no prosthetic rehabilitation (89.5%). In the age subgroup analysis (≤35 and >35 years old) tooth loss was more prevalent among men than women (OR = 2.8 and 1.9, resp., P < 0.01). Also, in both age groups, current and former smokers had higher levels of tooth loss than nonsmokers (P < 0.001 and P < 0.05, resp.). In addition, tooth loss was positively related to metabolic abnormality for age group >35 years (adjusted OR = 1.29, P < 0.01). Conclusions. Tooth loss is highly prevalent in Iranian adult population. Community programs promoting oral health for prevention of tooth loss should be considered taking into account its major determinants including lower educational level, male gender, smoking, and metabolic abnormality.

Tooth Loss and Risk Factors Among Elderly Vietnamese

“…Approximately 60% of the elderly Vietnamese still had 20 teeth or more. This prevalence was far lower compared with the findings in a neighbouring country 17 , but in line with a study conducted in Iran 18 , and higher than the ones reported in Turkey 14 . Table 1.…”

Condição de saúde bucal e motivos para extração dentária entre uma população de adultos (20-64 anos)

“…Data from SB Brazil 2010 showed that 69.8% of adults did not wear upper arch prosthesis and 90.9% did not wear lower arch prosthesis 4 , a piece of data compatible with the findings of this study. In a province of Iran 28 , with samples in an expansive age group of adults and older adults (19 to 75 years old), 89.5% did not use any prosthesis, 2.3% had a single removable partial lower denture, 3.6% had removable complete upper and lower dentures, and 4.6% had fixed dentures. In this study, complete dentures were the type of prosthesis most commonly used on the upper arch, followed by removable partial dentures.…”

Incidence of Tooth Loss in Adults: A 4-Year Population-Based Prospective Cohort Study

“…The clinical aspects of tooth loss, such as most affected teeth, their distribution [12, 13], and condition before tooth extraction, have been more exploited in clinical studies [4, 14, 15] and may not correspond to the reality of the population. Observational studies with adults are rarely found in the literature and may present more detailed data on clinical conditions of tooth loss [16].…”

“…Observational studies with adults are rarely found in the literature and may present more detailed data on clinical conditions of tooth loss [16]. Tooth loss studies are usually cross-sectional [9, 11, 12, 14, 17–20] and assess factors associated with this condition, mainly socioeconomic and oral health service utilization [8–12, 14, 15, 17–20]. …”