Claffey N, Egelberg J
Dental School, Trinity College, Dublin, Ireland.
J Clin Periodontol. 1995 Sep;22(9):690-6. doi: 10.1111/j.1600-051x.1995.tb00828.x.
16 advanced periodontitis patients were subjected to initial periodontal treatment and monitored every 3rd month during 42 months. Clinical characteristics at baseline and during the 42-month maintenance period were investigated for their association with probing attachment loss over the 42-month period, both on a patient level and on a site level. On a patient level, averaged full-mouth plaque and bleeding on probing scores over the maintenance interval showed little association with probing attachment loss. Little association was also observed for % sites with depth > or = 6 mm at baseline. However, a notable relationship was seen for % sites > or = 6 mm at 3 months. This finding initiated a separation of the 16 subjects into 2 groups based upon % sites > or = 6 mm at 3 months (groups 'high' and 'low'). Site level analyses for these groups showed little association between frequent presence of plaque at the sites over the maintenance interval and probing attachment loss. Frequent bleeding on probing showed limited relationship with attachment loss for group 'low', but an appreciable association for group 'high'. The findings suggest that advanced periodontitis patients with multiple residual probing depths > or = 6 mm at re-evaluation run a greater risk of developing sites with additional attachment loss than patients with few such residual depths. For such higher risk patients, bleeding on probing at maintenance examinations may be a useful indicator of subsequent deterioration at a site level.
16名晚期牙周炎患者接受了初始牙周治疗，并在42个月内每3个月进行一次监测。研究了基线和42个月维持期的临床特征与42个月期间探诊附着丧失的相关性，包括患者层面和位点层面。在患者层面，维持期内平均全口菌斑和探诊出血评分与探诊附着丧失的相关性较小。基线时深度≥6mm的位点百分比也显示出较小的相关性。然而，在3个月时深度≥6mm的位点百分比存在显著关系。这一发现促使根据3个月时深度≥6mm的位点百分比（“高”组和“低”组）将16名受试者分为两组。对这些组的位点层面分析显示，维持期内位点频繁出现菌斑与探诊附着丧失之间的相关性较小。探诊频繁出血与“低”组的附着丧失关系有限，但与“高”组有明显关联。研究结果表明，在重新评估时多个残留探诊深度≥6mm的晚期牙周炎患者比残留深度较少的患者发生位点额外附着丧失的风险更高。对于此类高风险患者，维持检查时的探诊出血可能是位点层面后续恶化的有用指标。
