Abstract
The purpose of this study was to investigate what effects occured on the preservation of teeth when a tooth was replanted.
A total of 30 clinically healthy human teeth were employed in this study. The teeth experimented upon were divided into two groups, one in which the teeth were immediately fixed after extraction (the control group), and the second in which the teeth were kept at room temperature for a 30 minute period (the dry group). The periodontal ligaments of these teeth were observed under a light microscope and a transmission electron microscope.
The recorded result showed that numerous fibroblasts and cementoblasts were observed in the control group. However, in the dry group, cells which appeared in the periodontal ligaments exhibited disrupted membranes, swollen mitochondria, and distended and fragmented endoplasmic reticula.
