Apically Extruded Debris in Curved Root Canals Using a New Reciprocating Single-File Shaping System

Kharouf, Naji; Pedullà, Eugenio; Nehmé, Walid; Akarma, Kadour; Mercey, Adrien; Gros, C; Haïkel, Youssef; Mancino, Davide

doi:10.1016/j.joen.2021.10.002

Cited by 22 publications

(23 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The two systems share the same cross-sectional design characteristic with an off-centered axis of rotation, which explains the outcome of this study. A recent study by Kharouf et al [17] agreed with this result and compared PTN in full rotation and reciprocation with WOG, resulting in no significant difference between the tested files sharing a similar rectangular cross section. Another study by Eliasz et al [36] revealed that PTN and WOG produced the same amount of AED.…”

Section: Discussionsupporting

confidence: 66%

A Comparative Evaluation of the Apically Extruded Debris from Root Canals Prepared by R-Motion NiTi File System

Al-Saffar

Al-Gharrawi

2023

International Journal of Dentistry

View full text Add to dashboard Cite

Background. Apically extruded debris (AED) is an inherent concern during root canal treatment for both endodontists and general practitioners. The present study investigates the AED of the novel R-Motion single-file reciprocating system compared to standard single reciprocating and multifile rotary systems. Materials and Methods. Fifty-six moderately curved palatal roots of upper maxillary first molars were selected for the present study. The samples were then divided randomly into four groups (n = 14)— Group I: R-motion (RM), Group II: WaveOne Gold (WOG), Group III: ProTaper Next (PTN), and Group IV: HyFlex EDM (HFEDM). The researcher has modified Myers and Montgomery’s method to simulate human body temperature. Vials were used to collect debris and weighted using a 0.00001 sensitive balance before and after instrumentation. The instrumentation of all experimented groups was done at 37°C, terminated at master apical file #25. An auto syringe with a side vented needle was used to deliver 8 ml of deionized water for irrigation of each sample during preparation. Vials were stored in a dry sealed desiccator which contained CaSO4 crystals, for 24 hr before weighing. The weight of the collected debris was obtained by subtracting the preinstrumentation weight from the postinstrumentation weight for each vial. The Kruskal–Wallis and Mann–Whitney U tests were performed to analyse the statistical difference in the amount of debris between the tested groups at a 0.05 significance level. Results. The RM system produced less debris extrusion than all tested groups, with a significant difference between the former and the WOG and the PTN systems. However, WOG, PTN, and HFEDM showed no statistically significant difference in the amount of AED. Conclusion. All tested groups produced apical debris in different amounts. The RM produced substantially less AED than WOG and PTN. Meanwhile, WOG, PTN, and HFEDM caused a comparable amount of AED.

show abstract

Section: Discussionsupporting

confidence: 66%

A Comparative Evaluation of the Apically Extruded Debris from Root Canals Prepared by R-Motion NiTi File System

Al-Saffar

Al-Gharrawi

2023

International Journal of Dentistry

View full text Add to dashboard Cite

show abstract

“…This study has some limitations. Here, X-ray was used to detect the roots if they have single canals instead of cone-beam computed tomography (CBCT), as mentioned in a previous study [40]. The shear force applied did not simulate (compression, tensile, shear) forces and their directions inside the oral cavity.…”

Section: Resultsmentioning

confidence: 99%

Fracture resistance of custom-milled CAD/CAM post and core using two different materials: an in vitro study

Ghanem¹,

Baherly²,

Hassan³

2022

jos

View full text Add to dashboard Cite

Introduction: Restoration of endodontically treated teeth could be challenging for dentists, as these teeth would be biomechanically compromised at multiple levels, such as tissue components and tooth structures.Objectives: This study aimed to evaluate fracture resistance and failure modes of teeth restored with custommilled posts and cores fabricated from polyetherketoneketone, fiber-reinforced resin materials, and prefabricated fiber posts. Material and methods: Thirty mandibular premolars were used in the present study. After endodontic treatment, teeth were randomly assigned into three groups, i.e., MPP: restored with custom-milled posts and cores fabricated from polyetherketoneketone (PEKK); MFP: restored with custom-milled posts and cores fabricated from fiber-reinforced resin; and PFP: restored with prefabricated fiber-reinforced resin posts, then all samples were restored with metal crowns. Samples were subjected to a 45 o shear force at the inner slope of buccal cusp to failure. One-way ANOVA for independent groups and χ 2 test at 0.05 statistical significance were applied. Results: Differences between fracture resistance means of the three groups were not statistically significant (p = 0.279 > 0.05). The fracture resistance means for the MPP group was 423.2 ± 113.28 N; 356.90 ± 141.050 N for the MFP group; and 439.5 ± 100.616 N for the PFP group. As for failure types, no significant difference among the three groups was detected (p = 0.366 > 0.05). Regarding the failure modes, the reparable failure modes in each group, i.e., MPP, MFP, and PFP were 60%, 80%, and 50%, respectively. Conclusions: Teeth restored with custom-milled posts and cores fabricated from PEKK and fiber-reinforced composite displayed an acceptable performance. Consequently, within the limitations of this study, these posts may be considered a good alternative to prefabricated fiber-reinforced posts.

show abstract

“…Such debris, in addition to increasing postoperative pain, are capable of producing a detrimental effect on the stem cells of the apical area [ 30 ]. In the study of Alnassar I [ 31 ] in 2021, it was concluded that manual instruments produced more debris than rotary instruments such as Protaper Next Waveone, without finding significant differences between both; [ 32 ] In the recent study by Yeung W-Y [ 33 ] 2022, the cross-sectional area of the instrument used was analyzed as one of the main parameters in determining the amount of extruded debris. In addition, it was also concluded that the volume of irrigant could condition said extrusion since a greater volume of irrigation will notably reduce the extrusion of the material.…”

Section: Discussionmentioning

confidence: 99%

Update in the Diagnosis and Treatment of Root Canal Therapy in Temporary Dentition through Different Rotatory Systems: A Systematic Review

2022

View full text Add to dashboard Cite

The need to perform fast, effective and efficient pulpectomies has led to the development of numerous valid rotary systems. Its technical features allow the clinician to obtain good results in less working time. The objective of this study is to compare the characteristics of the different current rotary systems to favor a correct diagnosis and subsequent treatment. A systematic review of the literature has been carried out in accordance with the PRISMA recommendations. A search was carried out in PubMed, Embase Scopus, Cochrane and Web of Science databases, and was completed with a manual search. The following variables were extracted from the selected studies: author, year, sample, rotary systems used (length, diameter, taper, speed), obturation material and irrigant. From the initial electronic search of the five databases, 315 articles were identified. Once the duplicate articles were eliminated, a total of 233 remained. After reading both title and abstract, 200 articles were eliminated, leaving 33. On account of reading the full text, 22 were eliminated for not answering the research question or the inclusion criteria, leaving a total of 11 articles for the systematic review. Rotary systems which are able to adapt to the root anatomy of primary teeth and allow rapid and simple instrumentation, without producing excessive extrusion of debris at the root apex, will be the ones that provide the best results to the pediatric dentist during the performance of pulp treatment in primary teeth. Clinical success will only be achieved through proper prior diagnosis.

show abstract

Apically Extruded Debris in Curved Root Canals Using a New Reciprocating Single-File Shaping System

Cited by 22 publications

References 27 publications

A Comparative Evaluation of the Apically Extruded Debris from Root Canals Prepared by R-Motion NiTi File System

A Comparative Evaluation of the Apically Extruded Debris from Root Canals Prepared by R-Motion NiTi File System

Fracture resistance of custom-milled CAD/CAM post and core using two different materials: an in vitro study

Update in the Diagnosis and Treatment of Root Canal Therapy in Temporary Dentition through Different Rotatory Systems: A Systematic Review

Contact Info

Product

Resources

About