TheScientificWorldJournal · 2026
Micro-CT Evaluation of Dentin Preservation by ProTaper Gold and VDW.Rotate in Oval Mandibular Incisors.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
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de Sousa Wesley Viana, da Cunha Isaltino Marina, Velozo Christianne, de Andrade Silva Silmara, de Almeida Souto Montenegro Luiza, Dantas Hugo Victor, de Sousa Frederico Barbosa, Albuquerque Diana
Аннотация
INTRODUCTION: The success of endodontic treatment depends on the effective chemomechanical preparation of the root canal system, ensuring proper shaping, cleaning, and disinfection. Additionally, preserving pericervical dentin may improve the long-term prognosis of the tooth. The aim of this study was to compare the performance of two nickel-titanium rotary systems, ProTaper Gold (PTG) (Dentsply Sirona, Ballaigues, Switzerland) and VDW.Rotate (VDWR) (VDW GmbH, Munich, Germany), in preparing mandibular incisors, focusing on pericervical dentin preservation.
METHODS AND MATERIALS: A total of 20 mandibular incisors with oval-shaped root canals (Vertucci Type I) were selected, disinfected, and scanned by micro-CT. After randomization, the PTG and VDWR systems were used for canal preparation (n = 10). Preoperative and postoperative images were processed to measure volume, surface area, structure model index, and untouched walls. Irrigation with 2.5% NaOCl and 17% EDTA was standardized. Data were analyzed using the Student t-test, Welch t-test, or Mann-Whitney U test, with α = 5%.
RESULTS: Both systems exerted similar effects on proximal wall diameter reduction. The PTG system promoted significantly greater increases in volume (PTG: 5.50%; VDWR: 3.57%) and surface area (PTG: 34.79%; VDWR: 26.93%) compared with that of VDWR (p < 0.05). The percentage of unprepared areas was (PTG: 1.57%; VDWR: 2.33%).
CONCLUSION: VDWR was associated with reduced dentin removal versus PTG in vitro, but clinical superiority still needs to be proven.
METHODS AND MATERIALS: A total of 20 mandibular incisors with oval-shaped root canals (Vertucci Type I) were selected, disinfected, and scanned by micro-CT. After randomization, the PTG and VDWR systems were used for canal preparation (n = 10). Preoperative and postoperative images were processed to measure volume, surface area, structure model index, and untouched walls. Irrigation with 2.5% NaOCl and 17% EDTA was standardized. Data were analyzed using the Student t-test, Welch t-test, or Mann-Whitney U test, with α = 5%.
RESULTS: Both systems exerted similar effects on proximal wall diameter reduction. The PTG system promoted significantly greater increases in volume (PTG: 5.50%; VDWR: 3.57%) and surface area (PTG: 34.79%; VDWR: 26.93%) compared with that of VDWR (p < 0.05). The percentage of unprepared areas was (PTG: 1.57%; VDWR: 2.33%).
CONCLUSION: VDWR was associated with reduced dentin removal versus PTG in vitro, but clinical superiority still needs to be proven.