Journal
AUSTRALIAN ENDODONTIC JOURNAL
Volume 49, Issue -, Pages 64-70Publisher
WILEY
DOI: 10.1111/aej.12684
Keywords
cone-beam computed tomography; dental pulp calcification; guided endodontics; root canal treatment
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This study evaluated the drilling path and dentin wear of two instruments used during guided endodontic access. The results showed that the Munce bur had higher dentin wear compared to the DSP bur, while there was no significant difference in the drilling path.
This study evaluated the drilling path (mm) and the dentin wear (mm(3)) of two instruments used during guided endodontic access. Twenty mandibular incisors with calcified canals were selected using cone-beam computed tomography (CBCT) and fixed in articulated models. Preoperative CBCT scans were performed in combination with intraoral scanning, and the images were reconstructed in the Blue Sky Bio software for access planning and printing the guides. The access cavity was drilled with 1.0-mm-diameter bur (DSP) and 0.8-mm-diameter bur (Munce). Postoperative CBCT was performed, and the images obtained preoperative and postoperative were superimposed for the analyses. Data were analysed by a t-test and linear regression (alpha = 0.05). No difference was found in the drilling path (p = 0.422). However, the Munce bur had higher dentin wear than the DSP bur (p = 0.011). A positive linear correlation (R-2 = 0.859) was found between the factors.
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