A clinical statistical survey was carried out using results from interviews at a first examination and laboratory data to gain an understanding of trends among patients at Meikai University PDI Tokyo Clinic. The study participants were 254 and 472 new patients who visited the clinic in 2013 and 2018, respectively. The survey items were 1） average age and number of patients in all age groups, 2） age composition comparison, 3） gender, 4） place of residence, 5） frequency by chief complaint, 6） age-specific complaints, 7） systemic medical history, 8） handling at the first medical examination, and 9） occupation. The results based on a comparison of 2018 and 2013 were as follows. The mean age rose from 35.5 to 40.7 years, although by age group, the majority of patients were in their 20s for both years. No differences in gender or place of residence were found. The most common chief complaint was tooth pain, but the proportion of the total decreased, and the frequency of systemic disorders increased. The most common treatment at first visit was caries treatment in 2013, but it was scaling （cleaning） in 2018. The most common occupation of patients was company employee in both years. These results provide a clearer picture of trends among patients. We plan to keep carrying out surveys of patient trends in the future to provide more finely-tuned dental treatment.
