Comparison of Obturation Removal Efficiency from Straight Root Canals with ProTaper Gold or Reciproc Blue: A Micro-Computed Tomography Study

Journal of Clinical Medicine

Federico Foschi¹  Vicente Faus-Matoses²  Ignacio Faus-Matoses²  VicenteJ. Faus-Llácer²  Cristina Pasarín-Linares²  Salvatore Sauro³ 

[1] Department of Endodontics, Faculty of Dentistry, Oral & Craniofacial Sciences, Floor 22 Tower Wing, Guy’s Dental Hospital, London SE1 9RT, UK;Department of Restorative Dentistry and Endodontics, Valencia University Medical and Dental School, 46010 Valencia, Spain;Institute of Dentistry, I. M. Sechenov First Moscow State Medical University, 119146 Moscow, Russia;

关键词: micro-computed tomography;    ProTaper Gold;    Reciproc Blue;    retreatment;    Re-RCT;    desobturation;   

DOI  :  10.3390/jcm9041164

来源: DOAJ

【 摘 要 】

Background: The objective was to evaluate the efficiency of ProTaper Gold (PTG) and Reciproc Blue (RB) NiTi files in obturation material removal from straight root canals assessed by micro-computed tomography. Methods: Fifty-two anterior human teeth were shaped with a PTG rotary system until F2 (25/.08). Specimens were obturated with a continuous wave of condensation technique. For retreatment, specimens were randomly distributed in two experimental groups: PTG group (F4 file) and RB (R40 file). Micro-CT scans were performed before and after retreatment procedures. The percentage of the remaining obturation material compared to the original volume was calculated, as well as the retreatment time. The presence of separated files was recorded. A descriptive analysis was carried out, and nonparametric tests were employed. Results: The mean percentages of remaining obturation material in the PTG group and the RB group were 4.14 ± 4.30% and 4.18 ± 4.29%, respectively. The mean retreatment times for the PTG and RB groups were 144 ± 51 and 163 ± 88 s, respectively. There were no statistically significant differences, neither in removal efficiency (p > 0.05) nor in retreatment time (p > 0.05), between the two groups. The coronal and middle thirds presented significantly more remaining obturation material than the apical third (p < 0.05). No file separation occurred. Conclusions: ProTaper Gold and Reciproc Blue present with comparable efficiency in removing the obturation material, with a similar mean retreatment time.

【 授权许可】

Unknown