AIM: The aim is to evaluate the differences in canal volumes using MicroCT between five new Ni-Ti instruments—Perfect TG6 T1, TF4 gold, RC blue, Px one gold, MTF plus (Perfect Medical Instruments, Shenzhen, China)—and five gold standard instruments—Protaper Gold F1, Reciproc Blue, Proglider 16/02, Protaper Next. METHODS: The analysis was performed on eight extracted molars, with a canal modeled using reference instruments and two canals modeled with the new instruments. Each molar underwent two MicroCT scans—one before and one after canal preparation. Volumetric comparisons were made using 3D analysis software, 3dSlicer. RESULTS: The results showed that the canal anatomy was preserved in both groups, with an increase in canal volume after shaping compared to pre-operative measurements. CONCLUSIONS: The study concluded that there are no significant differences in shaping efficacy between the new instruments and the reference instruments, as both demonstrated comparable centering ability and residual dentin thickness. Additionally, the use of advanced MicroCT analysis provided a detailed assessment of canal anatomy preservation, something that standard radiographs could not achieve.
OBIETTIVO: L'obiettivo è valutare le differenze nei volumi dei canali utilizzando MicroCT tra cinque nuovi strumenti Ni-Ti, Perfect TG6 T1, TF4 gold, RC blue, Px one gold, MTF plus (Perfect Medical Instruments, Shenzen, China) e cinque strumenti gold standard, Protaper Gold F1, Reciproc Blue, Proglider 16/02, Protaper Next. METODI: Per l'analisi sono state utilizzate otto molari estratte, con un canale modellato utilizzando gli strumenti di riferimento e due canali modellati con i nuovi strumenti. Ogni molare è stato sottoposto a due scansioni MicroCT—una prima e una dopo la preparazione del canale. Le comparazioni volumetriche sono state effettuate utilizzando un software di analisi 3D, 3dSlicer. RISULTATI: I risultati hanno mostrato che l'anatomia del canale è stata preservata in entrambi i gruppi, con un aumento del volume del canale dopo la modellatura rispetto alle misurazioni pre-operatorie. CONCLUSIONI: Lo studio ha concluso che non ci sono differenze significative nell'efficacia di modellatura tra i nuovi strumenti e gli strumenti di riferimento, poiché entrambi hanno dimostrato una capacità di centratura e uno spessore dentinale residuo comparabili. Inoltre, l'uso dell'analisi avanzata MicroCT ha fornito una valutazione dettagliata della preservazione dell'anatomia del canale, cosa che le radiografie standard non potevano ottenere.
Analisi comparativa tramite Micro Tomografia Computerizzata della sagomatura canalare ottenuta da strumenti endodontici di nuova generazione e gold standard: uno studio ex vivo
SACCARDO, ALESSANDRO
2024/2025
Abstract
AIM: The aim is to evaluate the differences in canal volumes using MicroCT between five new Ni-Ti instruments—Perfect TG6 T1, TF4 gold, RC blue, Px one gold, MTF plus (Perfect Medical Instruments, Shenzhen, China)—and five gold standard instruments—Protaper Gold F1, Reciproc Blue, Proglider 16/02, Protaper Next. METHODS: The analysis was performed on eight extracted molars, with a canal modeled using reference instruments and two canals modeled with the new instruments. Each molar underwent two MicroCT scans—one before and one after canal preparation. Volumetric comparisons were made using 3D analysis software, 3dSlicer. RESULTS: The results showed that the canal anatomy was preserved in both groups, with an increase in canal volume after shaping compared to pre-operative measurements. CONCLUSIONS: The study concluded that there are no significant differences in shaping efficacy between the new instruments and the reference instruments, as both demonstrated comparable centering ability and residual dentin thickness. Additionally, the use of advanced MicroCT analysis provided a detailed assessment of canal anatomy preservation, something that standard radiographs could not achieve.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/93102