Assessment of different techniques in the removal of a bioceramic based filling material in long oval canals: A micro-CT Study / Wael Ali Alawneh
Why this work is in the frame
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Bibliographic record
Abstract
Introduction: iRoot SP (Innovative Bioceramix, Vancouver, Canada) was introduced as a calcium silicate-based sealer used for filling of the root canal system. However, there are concerns regarding the removal of this sealer. Aim: To evaluate the efficiency of different techniques in removing gutta-percha (GP) and iRoot SP® (Innovative Bioceramix, Vancouver, Canada) in long-oval shaped canal using micro-computed tomography (micro-CT). Materials and methods: Forty-eight single-rooted mandibular premolars with single straight canals were prepared using ProTaper Next® system (Dentsply Maillefer, Switzerland) to size X3 (30/.06) and filled with gutta-percha and iRoot SP® (Innovative Bioceramix, Vancouver, Canada) using the hydraulic technique 2 mm short of the working length. The samples were randomly divided into four groups (n=12) in each group according to the root filling removal technique: Group 1 Protaper® Universal Retreatment system (Dentsply Maillefer, Switzerland), Group 2 Protaper Universal Retreatment system combined with Xylol, Group 3 Protaper Universal Retreatment system combined with Endo Success™ Retreatment Kit, ET25 tip (Acteon, England), Group 4 Protaper Universal Retreatment combined with Xylol and Endo Success™ Retreatment Kit, ET25 tip (Acteon, England). All samples were scanned before and after the removal of the root canal filling material using micro-computed tomography imaging to assess the amount of root filling materials left. Results: Results showed no statistically significant difference in the remaining root filling material between the groups (P>0.05). The apical thirds showed the highest percentage of the remaining root canal filling material compared to the middle and coronal thirds (P<0.05). There was no significant difference between the groups in all thirds of the root (P>0.05). Results showed no statistically significant difference in the ability to achieve patency between groups (P>0.05). Conclusion: No technique proved to be superior to the others in removing bio-ceramic root filling-based material. The apical third retained a significantly iv higher percentage of its filling material compared to the middle and coronal third. Bioceramic sealers are negotiable in single, straight root canal anatomy.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it