Men with higher alcohol intake were more likely to have a higher prevalence of treatment needs regardless of their age, socioeconomic factors, systemic conditions (including diabetes, hypertension, and metabolic syndrome), and number of times of toothbrushing per day in multivariable adjusted models. By contrast, in women, alcohol intake was not independently associated with periodontal treatment needs. Alcohol consumption was discovered to be a potential risk indicator for periodontal treatment needs in men in this study.