This research made use of personal experiences, dental behavior and you may dental solution application data. Brand new public backgrounds survey made up inquiries on the (1) living area (urban/rural), (2) sex (male/female), (3) many years (60–64, 65–69 and you can 70–74), (4) marital status (married/single, widow otherwise divorced), (5) societal interests (UCS, SSS or CSMBS), (6) month-to-month income (?15,000/>fifteen,000 Baht/USD500), (7) degree (first or reduced/center or even more) and you will (8) useful capabilities (stable/declining otherwise forgotten).