RESULTS:
All 72 invited participants joined this study. The majority (n = 133) had good OHRQoL. For those with a good OHRQoL, 74 had CPI = 0, 25 had CPI = 1, 20 had CPI = 2, and 14 had CPI ≥ 3. For those who had an average or poor OHRQoL (n = 37), 19 had CPI = 0, one had CPI = 1, eight had CPI = 2, and nine had CPI ≥ 3. There was a statistically-significant association between OHRQoL and CPI (P < 0.003). Most participants with good OHRQoL (127/133), but only less than half with an average or poor OHRQoL (22/37), had no loss of periodontal attachment (P < 0.0001).