Twenty years later: Oral health-related quality of life and standard of treatment in patients with chronic periodontitis.

Background: To assess oral health-related quality of life (OHRQoL) after long-term (20 years) periodontal treatment in patients with chronic periodontitis (ChP) and to compare it with the current clinical outcome and oral health status.

Methods: Twenty years after therapy, 63 patients were reexamined. The dental and periodontal status and OHRQoL using the Oral Health Impact Profile-G49 (OHIP-G49) were assessed. Descriptive statistics, correlation analysis, and tests for differences were calculated.

Results: Up to 75% of patients showed no probing depths > 5mm, bleeding on probing (BOP) ≤25%, no pain and satisfactory function. A comparatively low perceived oral impact of ChP was represented by an OHIP-G49 overall score of 18.89 ± 21.66. The most common reported impairment was physical pain followed by "functional limitation." A correlation between oral quality standard and the OHIP-G49 was limited to the physical pain subdomain.

Conclusions: Satisfaction with oral status was perceived high by most patients treated for chronic periodontitis. A comparably high OHRQoL can be achieved and retained long-term after periodontal treatment. The objective and subjective evaluation of oral health only correlated in the subscale "physical pain."