Alveolar Bone Loss in Patients with Long‐Term Supportive Care

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Abstract
Radiographic record audits were coinducted on 63 patients diagnosed as having periodontitis who had been treated and maintained for 10 years or longer in dental school clinics. Acceptable bite-wing radiographs were available for 50 of these patients. Bite-wing radiographs taken 8 to 34 years apart (mean 14.9 years) were assessed for bone loss. Recall maintenance had been accomplished for 60% of these patients at 6 to 9 month intervals, while 24% had been seen more frerquently. The mean annual rate of bone loss was 0.037 mm (range of -0.19 to 0.20). There were no significant differences in bone loss between maxillary/mandibular, molar/premolar, or mesial/distal sites respectively. Progression of disease as assessed by radiographic bone loss in treated and maintained periodontitis patients is minimal.