Effect of supportive periodontal therapy on the prevention of tooth loss in Korean adults
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Purpose: The purpose of this retrospective study was to evaluate the effect of patientcompliance with supportive periodontal therapy (SPT) on tooth loss in Korean adults. Methods: The periodontal records of 134 patients were reviewed for this study. They completedactive periodontal treatment from 1999 to 2001 and were placed on a schedule ofperiodic follow-up visits for SPT. Patient compliance was classified into complete compliance(CC), erratic compliance (EC), and noncompliance (NC) groups. Re-examinations werecarried out 11.0±0.8 years after the active periodontal treatment. The prognosis for eachtooth was determined as good, questionable, or hopeless according to the bone loss observedin pretreatment radiographs. Results: The rate of tooth loss of the CC group was significantly lower than that of the NCgroup. The tooth loss/patient and the tooth loss/patient/year were not significantly differentbetween the three groups. The rates of tooth loss in the good, questionable, and hopelessprognosis groups were 6.7%, 9.5%, and 13.2%, respectively. For the teeth with a goodprognosis, the rate of tooth loss of the CC group was significantly lower than that of theNC group (0.4% vs. 5.1%). For the teeth with a questionable prognosis, the CC groupshowed a significantly lower rate of tooth loss than did the EC group (4.1% vs. 30.7%) orthe NC group (4.1% vs. 25.6%). For the teeth with a hopeless prognosis, the rates of toothloss were not significantly different among the three groups. Conclusions: Within the limits of this study, the patients who showed a poor compliancewith SPT were more likely to lose teeth than were the regularly compliant patients. However,the risk of tooth loss with a hopeless prognosis was high irrespective of the compliance.
Abstract
Purpose: The purpose of this retrospective study was to evaluate the effect of patientcompliance with supportive periodontal therapy (SPT) on tooth loss in Korean adults. Methods: The periodontal records of 134 patients were reviewed for this study. They completedactive periodontal treatment from 1999 to 2001 and were placed on a schedule ofperiodic follow-up visits for SPT. Patient compliance was classified into complete compliance(CC), erratic compliance (EC), and noncompliance (NC) groups. Re-examinations werecarried out 11.0±0.8 years after the active periodontal treatment. The prognosis for eachtooth was determined as good, questionable, or hopeless according to the bone loss observedin pretreatment radiographs. Results: The rate of tooth loss of the CC group was significantly lower than that of the NCgroup. The tooth loss/patient and the tooth loss/patient/year were not significantly differentbetween the three groups. The rates of tooth loss in the good, questionable, and hopelessprognosis groups were 6.7%, 9.5%, and 13.2%, respectively. For the teeth with a goodprognosis, the rate of tooth loss of the CC group was significantly lower than that of theNC group (0.4% vs. 5.1%). For the teeth with a questionable prognosis, the CC groupshowed a significantly lower rate of tooth loss than did the EC group (4.1% vs. 30.7%) orthe NC group (4.1% vs. 25.6%). For the teeth with a hopeless prognosis, the rates of toothloss were not significantly different among the three groups. Conclusions: Within the limits of this study, the patients who showed a poor compliancewith SPT were more likely to lose teeth than were the regularly compliant patients. However,the risk of tooth loss with a hopeless prognosis was high irrespective of the compliance.
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