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von Arx T, Gemmet Steiner R, Tay FR. Apical surgery: endoscopic findings at the resection level of 168 consecutively treated roots. International Endodontic Journal. Abstract Aim Endoscopic evaluation of the cut root face after root-end resection during apical surgery. Methodology Consecutive cases undergoing apical surgery from June 2006 to May 2008 were enrolled. After root-end resection, the cut root face was inspected with a rigid endoscope and the following findings were assessed: number of canals, presence of isthmus, presence and location of craze lines/cracks, frosted dentine, and gaps between root filling material and dentine. Craze lines/cracks, frosted dentine and gaps were further correlated with the age group of the patient ( 0.0001). Premolars had significantly more craze lines/cracks than anterior teeth (P = 0.006) and molars (P = 0.000). Frosted dentine was significantly more frequently seen in premolars (P = 0.027) and molars (P = 0.001) compared to anterior teeth. The age groups and the presence or absence of a post/screw did not significantly influence the findings. Conclusions Frosted dentine and gaps were frequently observed with endoscopy at the resected root surfaces. The type of tooth appeared to affect the occurrence of a craze line/crack and of frosted dentine. |
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