Relationship of Radiologic and Histologic Signs of Inflammation in Human Root-filled Teeth

The aim of this study was to determine the rela-tionship between histologic and radiologic signs of inflammation in human root-filled teeth. In addition, other factors with possible importance for apical inflammation were assessed. Fifty-three block sections of root-filled teeth were gathered from human cadavers. The blocks were radiographically exposed, sectioned, and stained with hematoxylin and eosin. Histologic sections were categorized as inflamed or uninflamed. Radiographically, the roots were assigned as apical lucency, widened periodontal ligament (PDL), or no lucency. Pres-ence and contents of accessory canals were re-corded (empty, tissue, or filling material). Statisti-cal analysis was performed with the Chi-squar