Abstract
The cemental tear makes easy bacterial invasion to apical site of the root, and causes collapse of the local and rapid periodontal tissue. This study considered 10 cases of cemental tears detected by our study group.
(1) In all cases, the ages of the patients when the cemental tears were detected were relatively high, with the average of 66.4 years old.
(2) All cases were single root teeth.
(3) Subjects were 8 male and 2 female.
(4) Among the 10 cases, 2 were vital and 8 were nonvital.
(5) Apical cemental tear caused greater loss of periodontal tissue, and cervical cemental tear caused smaller loss of periodontal tissue.
These observations suggest that the causes of cemental tear are associated with traumatic external forces working on teeth and a variety of changes caused by aging of a human being.
