Morphological study on the Danger Zone of the mesiobuccal canal prepared by three nickel-titanium rotary systems using three-dimensional printed mandibular first molars
Objective To compare the effects of three nickel-titanium file systems, ProTaper Next, TruNatomy, and VDW. ROTATE, on the morphology of the Danger Zone of the mesial buccal root of mandibular first molar after root canal preparation using Micro-CT and 3D printing technology. Methods 3D-printed mandi...
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Editorial Office of Stomatology
2025-06-01
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| Series: | Kouqiang yixue |
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| Online Access: | https://www.stomatology.cn/fileup/1003-9872/PDF/1751968136154-1328044078.pdf |
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| author | LIU Yuqing, DAI Jiayun, ZHOU Duo, WANG Xingyang, XU Fulu, WANG Juan |
| author_facet | LIU Yuqing, DAI Jiayun, ZHOU Duo, WANG Xingyang, XU Fulu, WANG Juan |
| author_sort | LIU Yuqing, DAI Jiayun, ZHOU Duo, WANG Xingyang, XU Fulu, WANG Juan |
| collection | DOAJ |
| description | Objective To compare the effects of three nickel-titanium file systems, ProTaper Next, TruNatomy, and VDW. ROTATE, on the morphology of the Danger Zone of the mesial buccal root of mandibular first molar after root canal preparation using Micro-CT and 3D printing technology. Methods 3D-printed mandibular first molars were selected and designed for purpose. They were randomly divided into three groups according to the used NiTi files(n=20). Micro-CT was used to scan the cross-sectional images of the Danger Zone 2 mm below the furcation of the mesial buccal root before and after root canal preparation. The changes in the root canal wall thickness, root canal volume, surface area, cross-sectional area, and root canal transportation in the Danger Zone were observed. Statistical analysis was performed using one-way ANOVA(P<0.05). Results Statistically significant differences were observed before and after root canal preparation in the Danger Zone among the three groups(P<0.05). Among the three groups, the PTN files caused the largest change before and after preparation, followed by VDW files, and the TRU files had the smallest change. Conclusion The study highlights TruNatomy’s conservative shaping capacity, advocating its use in minimally invasive endodontics, whereas ProTaper Next may be reserved for cases requiring aggressive canal preparation. |
| format | Article |
| id | doaj-art-72fba005f477499e946e22f40b8845d1 |
| institution | Kabale University |
| issn | 1003-9872 |
| language | zho |
| publishDate | 2025-06-01 |
| publisher | Editorial Office of Stomatology |
| record_format | Article |
| series | Kouqiang yixue |
| spelling | doaj-art-72fba005f477499e946e22f40b8845d12025-08-20T03:49:50ZzhoEditorial Office of StomatologyKouqiang yixue1003-98722025-06-0145643043510.13591/j.cnki.kqyx.2025.06.006Morphological study on the Danger Zone of the mesiobuccal canal prepared by three nickel-titanium rotary systems using three-dimensional printed mandibular first molarsLIU Yuqing, DAI Jiayun, ZHOU Duo, WANG Xingyang, XU Fulu, WANG Juan0Department of Endodontics Dentistry, the Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, ChinaObjective To compare the effects of three nickel-titanium file systems, ProTaper Next, TruNatomy, and VDW. ROTATE, on the morphology of the Danger Zone of the mesial buccal root of mandibular first molar after root canal preparation using Micro-CT and 3D printing technology. Methods 3D-printed mandibular first molars were selected and designed for purpose. They were randomly divided into three groups according to the used NiTi files(n=20). Micro-CT was used to scan the cross-sectional images of the Danger Zone 2 mm below the furcation of the mesial buccal root before and after root canal preparation. The changes in the root canal wall thickness, root canal volume, surface area, cross-sectional area, and root canal transportation in the Danger Zone were observed. Statistical analysis was performed using one-way ANOVA(P<0.05). Results Statistically significant differences were observed before and after root canal preparation in the Danger Zone among the three groups(P<0.05). Among the three groups, the PTN files caused the largest change before and after preparation, followed by VDW files, and the TRU files had the smallest change. Conclusion The study highlights TruNatomy’s conservative shaping capacity, advocating its use in minimally invasive endodontics, whereas ProTaper Next may be reserved for cases requiring aggressive canal preparation.https://www.stomatology.cn/fileup/1003-9872/PDF/1751968136154-1328044078.pdf|endodontic instrumentation|nickel-titanium instruments|three-dimensional printing|danger zone|micro-computed tomography |
| spellingShingle | LIU Yuqing, DAI Jiayun, ZHOU Duo, WANG Xingyang, XU Fulu, WANG Juan Morphological study on the Danger Zone of the mesiobuccal canal prepared by three nickel-titanium rotary systems using three-dimensional printed mandibular first molars Kouqiang yixue |endodontic instrumentation|nickel-titanium instruments|three-dimensional printing|danger zone|micro-computed tomography |
| title | Morphological study on the Danger Zone of the mesiobuccal canal prepared by three nickel-titanium rotary systems using three-dimensional printed mandibular first molars |
| title_full | Morphological study on the Danger Zone of the mesiobuccal canal prepared by three nickel-titanium rotary systems using three-dimensional printed mandibular first molars |
| title_fullStr | Morphological study on the Danger Zone of the mesiobuccal canal prepared by three nickel-titanium rotary systems using three-dimensional printed mandibular first molars |
| title_full_unstemmed | Morphological study on the Danger Zone of the mesiobuccal canal prepared by three nickel-titanium rotary systems using three-dimensional printed mandibular first molars |
| title_short | Morphological study on the Danger Zone of the mesiobuccal canal prepared by three nickel-titanium rotary systems using three-dimensional printed mandibular first molars |
| title_sort | morphological study on the danger zone of the mesiobuccal canal prepared by three nickel titanium rotary systems using three dimensional printed mandibular first molars |
| topic | |endodontic instrumentation|nickel-titanium instruments|three-dimensional printing|danger zone|micro-computed tomography |
| url | https://www.stomatology.cn/fileup/1003-9872/PDF/1751968136154-1328044078.pdf |
| work_keys_str_mv | AT liuyuqingdaijiayunzhouduowangxingyangxufuluwangjuan morphologicalstudyonthedangerzoneofthemesiobuccalcanalpreparedbythreenickeltitaniumrotarysystemsusingthreedimensionalprintedmandibularfirstmolars |