Ehnevid H, Jansson L E, Lindskog S F, Blomlöf L B
Department of Oral Histology and Cell Biology, School of Dentistry, Karolinska Institutet, Stockholm, Sweden.
J Periodontol. 1993 Dec;64(12):1199-204. doi: 10.1902/jop.1993.64.12.1199.
The aim of the present study was primarily to investigate if periodontal healing assessed by reduction in probing depth over time is significantly influenced by the initial degree of horizontal radiographic attachment loss and secondly to what degree any such relationship influenced the already established correlation between presence of a root canal infection and impaired marginal healing. The investigation was conducted as a retrospective study on 160 patients referred to a specialist periodontal clinic. The choice of variables was guided by an assumption that each variable either positively or negatively contributed to determine probing depth reduction. It was found that healing after scaling and root planing over time was significantly impaired with more advanced loss of radiographic attachment. Regardless of the extent of radiographic attachment loss, healing after scaling and root planing was also significantly impaired over time by the presence of a root canal infection.
本研究的主要目的是调查随着时间推移通过探诊深度减少来评估的牙周愈合是否受到水平放射学附着丧失初始程度的显著影响，其次是这种关系在多大程度上影响了根管感染的存在与边缘愈合受损之间已确立的相关性。该调查是对转诊至专科牙周诊所的160名患者进行的回顾性研究。变量的选择基于这样一种假设，即每个变量对确定探诊深度减少有正向或负向贡献。结果发现，随着放射学附着丧失程度的加重，刮治和根面平整术后随时间推移的愈合明显受损。无论放射学附着丧失的程度如何，根管感染的存在也会随着时间的推移显著损害刮治和根面平整术后的愈合。
