作者: Jasim M. Albandar , Dhia K. Abbas
DOI: 10.1111/J.1600-051X.1986.TB02235.X
关键词:
摘要: Radiographic bone level changes over 2 years were assessed by 1 absolute and relative techniques in a group of 180 subjects (age 18-68 years, mean 46.7). The technique measured the CEJ-AC distance (mm). Schei Bjorn employed rulers which expressed alveolar as % root tooth length, respectively. applicability readability 3 compared their interrelationship evaluated. showed significantly better than did both methods (p less 0.0005), while exhibited highest ability detecting radiographic change level. correlation between measurements made (r = 0.87) was far that other 0.56, 0.59).