Academic Journal
Comparison of Dentinal Defects Formation in Straight, Moderate and Severely Curved Canals by Three Distinctive Nickel Titanium Instruments: An in vitro Study
| العنوان: | Comparison of Dentinal Defects Formation in Straight, Moderate and Severely Curved Canals by Three Distinctive Nickel Titanium Instruments: An in vitro Study |
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| المؤلفون: | Azin Alasvand Javadi, Mansour Jafarzadeh, Mohammad Yazdizadeh, Neda Askari Hasanvand, Shadi Nikoonejad, Ali Amiri |
| المصدر: | Journal of Dentistry, Vol 24, Iss 3, Pp 312-319 (2023) |
| بيانات النشر: | Shiraz University of Medical Sciences, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Medicine LCC:Dentistry |
| مصطلحات موضوعية: | cracked tooth syndrome, dentin, nitinol, root canal preparation, root fracture, Medicine, Dentistry, RK1-715 |
| الوصف: | Statement of the Problem: It is stated that engine-driven instruments might cause dentinal defects during root canal preparation. These defects might spread and progress into greater fractures or vertical root fracture. Purpose: This study aimed to compare the incidence of dentinal defects that might arise all through preparation of root canals, using One Shape, RaCe, and WaveOne systems in canals with a curvature (0-20°) and (20-40°). Materials and Method: In this in vitro study, 150 mandibular first molars were enrolled. Based on the degree of curvature in the mesial roots, the samples were divided into two groups (n=75) of straight and moderately curved canals (0-20º), and severely curved canals (20-40°). Then each group was randomly divided into four sub-groups. In subgroups 1 to 3 from each group, canals were prepared using WaveOne, One Shape, and RaCe. Then all roots were sectioned at 3, 6 and 9-mm distances from the apex. The slices were evaluated using stereomicroscope at 12× magnification. The data were analyzed using the Chi-square and Fisher’s exact tests and the level of significance was set at 0.05. Results: Fracture and other defects were not found in the control groups. In canals with curvature (0-20°), WaveOne caused the maximum dentinal defects and RaCe produced the least. Moreover, in canals with curvature (20-40°), One Shape caused the maximum dentinal defects while WaveOne and RaCe caused equal dentinal defects approximately. Conclusion: There was a statistically significant relationship between the performance of RaCe and One Shape in canals with curvature (0-20º) and (20-40º), (p Value< 0.05) while no statistically significant difference was observed in connection to the performance of WaveOne (p> 0.05). |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2345-6485 2345-6418 |
| Relation: | https://dentjods.sums.ac.ir/article_48874_bf0edf7290da2b053c95c48460ed8fcf.pdf; https://doaj.org/toc/2345-6485; https://doaj.org/toc/2345-6418 |
| DOI: | 10.30476/dentjods.2022.94475.1787 |
| URL الوصول: | https://doaj.org/article/dde7e57348e94e6fbfac7e68460fccaf |
| رقم الانضمام: | edsdoj.7e57348e94e6fbfac7e68460fccaf |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 23456485 23456418 |
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| DOI: | 10.30476/dentjods.2022.94475.1787 |