<![CDATA[Dental caries remains one of the most common oral health problems among adults and can adversely affect quality of life. Untreated dental caries may cause pain, impaired chewing function, difficulty speaking, and reduced self-confidence. In Indonesia, the prevalence of dental caries remains high. A similar condition is observed among adults aged 35–44 years in Padang Tangah Payobadar Village, Payakumbuh Timur District, West Sumatra, as indicated by the high prevalence of active dental caries and tooth loss due to untreated caries. This study aimed to determine the relationship between dental caries and quality of life among adults aged 35–44 years in Padang Tangah Payobadar Village. This study employed an analytical observational design with a cross-sectional approach. A total of 54 respondents were selected using a purposive sampling technique. Data were collected through clinical examination using the Decayed, Missing, and Filled Teeth (DMF-T) index and the Oral Health Impact Profile-14 (OHIP-14) questionnaire. Data were analyzed using univariate and bivariate analyses with the Chi-Square test. The results showed that 26 respondents (48.1%) had a very high DMF-T category, while 27 respondents (50.0%) had poor quality of life. The Chi-Square test yielded a Pearson Chi-Square value of 69.363 with a p-value <0.001 (p<0.05), indicating a statistically significant relationship between dental caries and quality of life. It can be concluded that the higher the severity of dental caries, the poorer the oral health-related quality of life. Therefore, promotive and preventive efforts through oral health education, regular dental check-ups, and early management of dental caries are recommended.]]>
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