Apically extruded debris, canal transportation, and shaping ability of nickel-titanium instruments on contracted endodontic cavities in molar teeth

Zhang, Qinqin; Gu, Jingyi; Shen, Jiadi; Ma, Ming; Lv, Ying; Wei, Xin

doi:10.2334/josnusd.23-0050

Cited by 4 publications

(1 citation statement)

References 35 publications

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“…This concept has evolved toward the possibility of instruments that can clean and shape root canals, while limiting the removal of dentine as much as possible. Using off‐centred cross‐sections together with heat‐treated alloys and the specific feature of shape memory, new geometric designs of endodontic instruments have been introduced that are able to change their shape when inside the root canal at a specific temperature, so that they can clean the root canal walls without excessive removal of hard dental tissues for access (i.e., MaxWire, Martensite‐Austenite‐electropolish‐fileX); 79–81 these types of instruments generally show low torsional stress and good patterns of stress distribution during their use 82 . Such instruments can be used even after regular instrumentation as an adjunctive procedure for root canal disinfection and debridement 83 .…”

Section: Evolution Of Nickel‐titanium Instrumentsmentioning

confidence: 99%

A review of the latest developments in rotary NiTi technology and root canal preparation

Grande,

Castagnola,

Minciacchi

et al. 2023

Australian Dental Journal

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The introduction of nickel‐titanium (NiTi) mechanical instruments dramatically changed clinical endodontics over the last few decades. Before NiTi, it was necessary to use more instruments to create an ideal root canal shape, and many approaches, sequences and techniques were developed over the years. Recently, NiTi endodontic instruments have undergone a series of changes brought about by modifications in design, surface treatments, and thermal treatments to improve their root canal preparation outcomes and reduce associated canal preparation risks during root canal treatment. Heat treatment is one of the most fundamental approaches to improving the fatigue resistance and flexibility of NiTi endodontic instruments. In addition, new kinematics have been developed to offer greater safety and efficiency. This narrative review describes the general properties and manufacturing of NiTi instruments, and the mechanical system evolution of NiTi instruments.

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Section: Evolution Of Nickel‐titanium Instrumentsmentioning

confidence: 99%

A review of the latest developments in rotary NiTi technology and root canal preparation

Grande,

Castagnola,

Minciacchi

et al. 2023

Australian Dental Journal

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Characteristics and Effectiveness of XP‐Endo Files and Systems: A Narrative Review

Alkahtany,

Alfadhel,

AlOmair

et al. 2024

International Journal of Dentistry

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Background: XP‐endo files are composed of Max‐Wire alloy, which was developed by FKG Dentaire (La Chaux‐de‐Fonds, Switzerland). This alloy, known as Martensite‐Austenite Electropolish Flex, is the first NiTi alloy used in endodontics to combine the shape memory effect with superelasticity for use in clinical practice.Objective: This article aims to provide a comprehensive overview of the existing knowledge and evidence regarding different XP‐endo files and systems, XP‐endo Finisher (XPEF), XP‐endo Shaper (XPES), XP‐endo Retreatment (XPER), XP‐endo Rise (XPE‐Rise), and XPE‐Rise Retreatment (XPE‐Rise‐R), to help clinicians understand their different properties and recommended clinical uses. Moreover, this review aims to identify future research opportunities in this field.Materials and Methods: A search was performed in the PubMed database using the keywords “XP endo” or “XP‐endo”. A total of 309 studies were identified during the initial search, and then initial abstract screening was conducted. The inclusion criteria included any study that aimed to evaluate XP endo files and systems on permanent teeth, either in vivo or in vitro. We excluded studies that were unrelated to the subject, literature reviews, case studies, and studies that employed deciduous teeth. Finally, we performed an extensive review of the selected 130 studies, which we assessed, summarized, and classified based on the specific XP‐endo file used.Conclusion: Overall, XP‐endo files offer significant improvements in endodontic treatment. XPEF excels in irrigation activation and medicament removal, and XPES succeeds in canal cleaning, shaping, and retreatment. The XPER system, which incorporates the XPEF‐R file, shows promise in removing root‐filling materials, but its performance is inconsistent compared to other retreatment systems. We have found limited information regarding the latest XPE‐Rise and XPE‐Rise‐R systems, additional research is required to fully determine their comparative effectiveness and optimize their clinical application.

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Extrusion of debris during retreatment using various nickel-titanium files in teeth with simulated lateral root perforation

Harorlı,

Koç,

Kuştarcı

2024

J Oral Sci

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Purpose: To investigate the influence of various nickel-titanium (Ni-Ti) files on debris extrusion during the retreatment of teeth with simulated lateral root perforation, focusing on root resorption. Methods: Sixty human mandibular premolar teeth were divided into groups with and without perforation and further subdivided based on the retreatment technique. Lateral root perforations were created in one group (Group 1), while the other group had no perforations (Group 2). Two retreatment techniques were compared: Remover (RE)+One RECI (OR) and ProTaper Universal Retreatment (PTUR)+WaveOne Gold (WOG). The weight of the extruded debris was determined. The time of both retreatment procedures was measured. Statistical analyses were performed using a two-way analysis of variance (ANOVA) test (P < 0.05). Results: Teeth with simulated lateral root perforation exhibited higher extrusion of debris during retreatment. In both groups, RE+OR files led to more extruded debris than PTUR+WOG files. However, this difference was statistically significant in Group 2 (P < 0.001). Compared to PTUR+WOG files, RE+OR files showed a statistically significant longer time to remove obturation material (P < 0.001). Conclusion: Perforated teeth exhibited significantly higher debris extrusion. While both file systems demonstrated similar debris extrusion in perforated teeth, the RE+OR files significantly increased debris extrusion in non-perforated teeth compared to the PTUR+WOG files.

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Apically extruded debris, canal transportation, and shaping ability of nickel-titanium instruments on contracted endodontic cavities in molar teeth

Cited by 4 publications

References 35 publications

A review of the latest developments in rotary NiTi technology and root canal preparation

A review of the latest developments in rotary NiTi technology and root canal preparation

Characteristics and Effectiveness of XP‐Endo Files and Systems: A Narrative Review

Extrusion of debris during retreatment using various nickel-titanium files in teeth with simulated lateral root perforation

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