Minimization of tooth substance removal in normally calcified teeth using guided endodontics: an in vitro pilot study
Introduction - This study evaluated the success rate of and tooth substance removal required for computer-guided preparation of endodontic access cavities. - Methods - Thirty acrylic typodont teeth with root canals (10 each of tooth numbers 11, 14, and 17) were randomly allocated to a study or contr...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2021
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| In: |
Journal of endodontics
Year: 2020, Volume: 47, Issue: 2, Pages: 286-290 |
| ISSN: | 1878-3554 |
| DOI: | 10.1016/j.joen.2020.10.025 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.joen.2020.10.025 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0099239920308542 
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| Author Notes: | Jana Kostunov, DMD, Peter Rammelsberg, DMD, Anna-Luisa Klotz, DMD, Andreas Zenthöfer, DMD, and Franz Sebastian Schwindling, DMD |
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| 245 | 1 | 0 | |a Minimization of tooth substance removal in normally calcified teeth using guided endodontics |b an in vitro pilot study |c Jana Kostunov, DMD, Peter Rammelsberg, DMD, Anna-Luisa Klotz, DMD, Andreas Zenthöfer, DMD, and Franz Sebastian Schwindling, DMD |
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| 520 | |a Introduction - This study evaluated the success rate of and tooth substance removal required for computer-guided preparation of endodontic access cavities. - Methods - Thirty acrylic typodont teeth with root canals (10 each of tooth numbers 11, 14, and 17) were randomly allocated to a study or control group (15 teeth per group). In the study group, teeth were fixed in acrylic resin and subsequently digitized using a laboratory scanner. A cone-beam computed tomographic scan was then taken. Access cavity preparations were planned virtually, and a template was 3-dimensionally printed. In the control group, access cavities were prepared using the conventional access technique. Tooth substance removal was assessed by weighing teeth before and after preparation. Volume loss was analyzed statistically by use of the Wilcoxon-Mann-Whitney test at a significance level of P < .05. - Results - Using guided endodontics, 93.3% of root canals were located successfully compared with 100% of root canals using the conventional technique. In the control group, the mean tooth substance removal was 16.1 ± 3.7 mm³ for incisors, 44.2 ± 8.9 mm³ for premolars, and 99.3 ± 3.1 mm³ for molars. In the study group, significantly less tooth substance was removed; substance loss was 10.3 ± 1.1 mm³ for incisors, 29.3 ± 4.2 mm³ for premolars, and 51.8 ± 5.3 mm³ for molars. - Conclusions - The use of guided endodontics in normally calcified teeth enables the preservation of a significant amount of tooth substance. However, this advantage must be carefully balanced against a greater radiation burden and risk of perforation, higher costs, and more difficult debridement and visualization of the pulp chamber and root canals. | ||
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| 650 | 4 | |a cone-beam computed tomography | |
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| 650 | 4 | |a root canal treatment | |
| 650 | 4 | |a substance loss | |
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