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Vazquez-Alcaraz S, Gancedo-Caravia L, Arias A, Bascones J. Performance of obturation techniques in anatomical irregularities located at different thirds of the root canal system. J Appl Oral Sci 2024; 32:e20230440. [PMID: 38775557 PMCID: PMC11178349 DOI: 10.1590/1678-7757-2023-0440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 03/13/2024] [Accepted: 04/05/2024] [Indexed: 06/16/2024] Open
Abstract
This study aimed to compare the quality of root canal obturation (ratio of area occupied by gutta-percha (G), sealer (S), and presence of voids (V)) in different anatomical irregularities (intercanal communications, lateral irregularities, and accessory canals) located at different thirds of the root canal system of mandibular molar replicas. Sixty-seven 3D printed replicas of an accessed mandibular molar were prepared using ProGlider and ProTaper Gold rotatory systems. Three specimens were randomly selected to be used as controls and did not receive further treatment. The rest were randomly distributed in 4 experimental groups to be obturated using either cold lateral compaction (LC), continuous wave of condensation (CW), and core-carrier obturation (ThermafilPlus (TH) or GuttaCore (GC)) (n=16 per group). AHPlus® sealer was used in all groups. The three controls and a specimen from each experimental group were scanned using micro-computed tomography. The rest of the replicas were sectioned at the sites of anatomical irregularities and examined at 30× magnification. The G, S, and V ratios were calculated dividing the area occupied with each element by the total root canal area and then compared among groups using the Kruskal-Wallis test. Voids were present in all obturation techniques with ratios from 0.01 to 0.15. CW obtained a significantly higher G ratio in the irregularity located in the coronal third (0.882) than LC (0.681), TH (0.773), and GC (0.801) (p<0.05). TH and GC achieved significantly higher G ratios in those located in the apical third (p<0.05). The worst quality of obturation was observed in the loop accessory canal with all obturation techniques. Whitin the limitations of this study, it can be concluded that CW and core-carrier obturation are respectively the most effective techniques for obturating anatomical irregularities located in the coronal and the apical third.
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Affiliation(s)
- Silverio Vazquez-Alcaraz
- Universidad Complutense de MadridFacultad de OdontologíaDepartamento de Odontología Conservadora y PrótesisEspañaUniversidad Complutense de Madrid, Facultad de Odontología, Departamento de Odontología Conservadora y Prótesis, España
| | - Lucia Gancedo-Caravia
- Universidad Complutense de MadridFacultad de OdontologíaDepartamento de Odontología Conservadora y PrótesisEspañaUniversidad Complutense de Madrid, Facultad de Odontología, Departamento de Odontología Conservadora y Prótesis, España
| | - Ana Arias
- Universidad Complutense de MadridFacultad de OdontologíaDepartamento de Odontología Conservadora y PrótesisEspañaUniversidad Complutense de Madrid, Facultad de Odontología, Departamento de Odontología Conservadora y Prótesis, España
| | - Jaime Bascones
- Universidad Complutense de MadridFacultad de OdontologíaDepartamento de Odontología Conservadora y PrótesisEspañaUniversidad Complutense de Madrid, Facultad de Odontología, Departamento de Odontología Conservadora y Prótesis, España
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De-Deus G, Souza EM, Silva EJNL, Belladonna FG, Simões-Carvalho M, Moreira Cavalcante D, Versiani MA. A critical analysis of research methods and experimental models to study root canal fillings. Int Endod J 2022; 55 Suppl 2:384-445. [PMID: 35226760 DOI: 10.1111/iej.13713] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/21/2022] [Accepted: 02/21/2022] [Indexed: 11/28/2022]
Abstract
Canal filling materials and techniques have been one of the most studied topics in Endodontics. A simple search using the mesh term "root canal filling" in PubMed revealed more than 11,000 articles, an impressive number that is much higher than "root canal disinfection" (5,544 articles) or even the popular "root canal preparation" (8,527 articles). The overriding importance attributed to root filling procedures is not merely intuitive. It derived from the appealing relevance given by the appearance of the white lines in common radiographs grounded on retrospective clinical data that had identified the quality of a root filling as one of the major causes of treatment failure (lack of healing). Since the publication of the Washington study, impressive efforts have been made for the release of new materials and techniques, as well as, for the development of a plethora of laboratory methods to assess the quality of root filling procedures. This narrative review aims to address and discuss the most relevant laboratory methods to assess the root canal filling. Since filling quality improvements have not translated into higher success rates, as reported in longitudinal clinical studies, more than to deliver a simple methodology-based review, this paper aims to present an in-depth critical view on the assessment of laboratory methods used to study the filling materials and techniques. Recent data indicate that the long-term dimensional stability/degradation over time of endodontic sealers plays a central role in the treatment outcome. In this context, laboratory methods should be developed focusing on predicting, at least to some degree, the long-term clinical behaviour of root canal fillings, rather than simply ranking different materials or techniques.
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Affiliation(s)
- Gustavo De-Deus
- Department of Endodontics, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil
| | - Erick Miranda Souza
- Department of Dentistry II, Federal University of Maranhão, São Luís, Maranhão
| | - Emmanuel João Nogueira Leal Silva
- Department of Endodontics, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil.,Department of Endodontics, Grande Rio University (UNIGRANRIO), Rio de Janeiro, Brazil
| | | | - Marco Simões-Carvalho
- Department of Endodontics, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil
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Mancino D, Kharouf N, Cabiddu M, Bukiet F, Haïkel Y. Microscopic and chemical evaluation of the filling quality of five obturation techniques in oval-shaped root canals. Clin Oral Investig 2020; 25:3757-3765. [PMID: 33244706 DOI: 10.1007/s00784-020-03703-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/23/2020] [Indexed: 12/01/2022]
Abstract
OBJECTIVES The aim of this study was to assess the filling quality of five obturation techniques in oval-shaped root canals. MATERIALS AND METHODS A total of 212 mandibular first molars with one distal oval canal were selected. Distal canals, shaped with WaveOne Gold Primary, were randomly divided in five groups (n = 40) for obturation: continuous wave condensation, GuttaCore, Thermafil, single cone with AH plus, and single cone with BioRoot RCS. The proportions of gutta-percha-filled areas (GPFA), sealer-filled areas (SFA), void areas (VA), and the sealer/gutta tags into dentinal tubules at 4 mm and 2 mm from the apex were analyzed by an optical numeric microscope, SEM, and energy-dispersive X-ray (EDX). Data were then compared by Kruskal-Wallis one-way ANOVA on ranks (α = 0.05). RESULTS At 4 mm, a statistically significant higher GPFA and lower SFA were observed in the GuttaCore and Thermafil groups compared with the 3 other groups. A statistically significant lower VA was observed in the continuous wave condensation, GuttaCore, and Thermafil groups than in the two single-cone groups. At 2 mm, there were a statistically significant higher GPFA and lower SFA and VA in GuttaCore and Thermafil groups than in the 3 other groups. At the two levels investigated, the presence of gutta-percha tags was clearly demonstrated for GuttaCore and Thermafil groups; no tags were observed in the 3 other groups. CONCLUSIONS Obturation quality was overall improved in GuttaCore and Thermafil groups. CLINICAL RELEVANCE Carrier-based techniques may significantly improve the filling quality compared to continuous wave condensation and single-cone technique. The single-cone technique might have inherent limitations especially in oval root canals regardless of the sealer used.
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Affiliation(s)
- Davide Mancino
- Department of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000, Strasbourg, France
- Biomaterials and Bioengineering, INSERM UMR_S 1121, Strasbourg University, 67000, Strasbourg, France
| | - Naji Kharouf
- Department of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000, Strasbourg, France
- Biomaterials and Bioengineering, INSERM UMR_S 1121, Strasbourg University, 67000, Strasbourg, France
| | - Mauro Cabiddu
- Department of Endodontics and Restorative Dentistry, Faculty of Dental Medicine, University of Turin, Turin, Italy
| | - Frédéric Bukiet
- CNRS, ISM, Inst Movement Sci, Aix Marseille Université, Marseille, France.
- Service d'Odontologie, APHM, Hôpital Timone, Marseille, France.
| | - Youssef Haïkel
- Department of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, 67000, Strasbourg, France
- Biomaterials and Bioengineering, INSERM UMR_S 1121, Strasbourg University, 67000, Strasbourg, France
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Mancino D, Kharouf N, Hemmerlé J, Haïkel Y. Microscopic and Chemical Assessments of the Filling Ability in Oval-Shaped Root Canals Using Two Different Carrier-Based Filling Techniques. Eur J Dent 2019; 13:166-171. [PMID: 31574539 PMCID: PMC6777156 DOI: 10.1055/s-0039-1695661] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Objectives
The aim of this study was to assess the filling ability in oval-shaped canals using two different carrier-based filling techniques.
Materials and Methods
Twenty-four human mandibular premolars with one oval canal were selected. Canals were shaped using WaveOne Gold Primary and ProGlider. Samples were divided into two groups and filled as follows: Thermafil and GuttaCore. The proportions of gutta-percha-filled areas (GPFAs), sealer-filled areas (SFAs), and void areas (VA), at 2 and 5 mm, were analyzed using optical numeric microscope, scanning electron microscope, and energy-dispersive X-ray.
Statistical Analysis
Data were compared by Kruskal–Wallis one-way analysis of variance on ranks, with statistical significance set at α = 0.05.
Results
At 2 and 5 mm distances from the apex, this study discloses no statistically different filling ability for the two techniques. Concerning each sample treated using both filling systems, the presence of tags was visualized. At working length (WL)-5, and WL-2, the maximum tag penetration depth for the GuttaCore group into the dentinal tubules was, respectively, 96 μm and 48 μm, whereas the values in the thermafil group were 109 μm, and 55 μm, respectively.
Conclusions
Our results clearly show that Thermafil and GuttaCore can fill oval-shaped canals in appropriate way. Furthermore, we can state that the GuttaCore obturator allows to preserve the same filling ability than Thermafil obturator, in view of the fact that there was no difference, in terms of GPFA, SFA, and VA between the two different carrier-based obturation techniques.
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Affiliation(s)
- Davide Mancino
- Department of Endodontics, Faculty of Dental Medicine, Strasbourg University, Strasbourg, France.,UMR-S 1121 Inserm, Biomaterials and Bioengineering, Strasbourg, France
| | - Naji Kharouf
- Department of Endodontics, Faculty of Dental Medicine, Strasbourg University, Strasbourg, France.,UMR-S 1121 Inserm, Biomaterials and Bioengineering, Strasbourg, France
| | - Joseph Hemmerlé
- Department of Endodontics, Faculty of Dental Medicine, Strasbourg University, Strasbourg, France.,UMR-S 1121 Inserm, Biomaterials and Bioengineering, Strasbourg, France
| | - Youssef Haïkel
- Department of Endodontics, Faculty of Dental Medicine, Strasbourg University, Strasbourg, France.,UMR-S 1121 Inserm, Biomaterials and Bioengineering, Strasbourg, France
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Vittoria G, Pantaleo G, Blasi A, Spagnuolo G, Iandolo A, Amato M. Thermafil: A New Clinical Approach Due to New Dimensional Evaluations. Open Dent J 2018. [PMID: 29541263 PMCID: PMC5838644 DOI: 10.2174/1874210601812010173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background There are a lot of techniques to obturate the root canals, but lateral condensation of gutta-percha is the most used one. An important aspect of thermafil is the error margin tolerated by the manufacturer in the production of plastic carriers. In literature, there is no evidence about discrepancy percentage between different carriers. It is demonstrated that the error margin of gutta-percha is 0.5% and is 0.2% for metal files (ISO standards). Objective The aim of this study was to evaluate the real dimensions of thermafil plastic carriers observed by the stereo microscope measuring the dimensional discrepancy between them. Methods For this study, 80 new thermafil (Dentsply Maillefer) have been selected. 40 thermafil 0.25 and 40 thermafil 0.30. Through 60X stereo microscope, the dimensions of the plastic carrier tips have been measured. The dimensions of the plastic carrier were also measured after a heating cycle. ZL GAL 11TUSM (Zetaline stereo evolution) microscope was used to observe the samples. Measurements were made through a dedicated software (Image Focus). All samples were analysed at 60X. Results A non-parametric paired test (Wilcoxon test) was used to compare baseline and after heating values; p-values ≤ 0.05 were assumed to be statistically significant. Conclusion The samples we measured showed a mean value of the diameters in Thermafil 25 that was 0.27 mm, for Thermafil 30 the mean value was 0.33 mm.We have measured a dimensional variable of 8% in the 25 group while in group 30 the maximum possible variation found was 4%, that's why we propose a new protocol of obturation with thermafil. We can also conclude that a single heating process does not affect clinically the plastic carrier dimensions.
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Affiliation(s)
- G Vittoria
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy
| | - G Pantaleo
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy
| | - A Blasi
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy
| | - G Spagnuolo
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy
| | - A Iandolo
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy
| | - M Amato
- Department of Medicine and Surgery, University of Salerno, Salerno, Italy
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Yilmaz A, Karagoz-Kucukay I. In vitro comparison of gutta-percha-filled area percentages in root canals instrumented and obturated with different techniques. J Istanb Univ Fac Dent 2017; 51:37-42. [PMID: 28955594 PMCID: PMC5573472 DOI: 10.17096/jiufd.95769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 09/28/2016] [Indexed: 11/30/2022] Open
Abstract
Purpose: To evaluate the efficacy of different obturation techniques in root canals instrumented either by hand or rotary instruments with regard to
the percentage of gutta- percha-filled area (PGFA). Materials and Methods: One hundred and sixty extracted mandibular premolars with single, straight root canals were studied. Root canals were
prepared to an apical size of 30 by hand with a modified crown-down technique or the ProTaper and HEROShaper systems. Teeth were divided into eight groups (n=20)
according to the following instrumentation and obturation techniques: G1: Hand files+lateral condensation (LC), G2: Hand files+Thermafil, G3: ProTaper+LC,
G4: ProTaper+single-cone, G5: ProTaper+ProTaper-Obturator, G6: HEROShaper+LC, G7: HEROShaper+single-cone, G8: HEROShaper+HEROfill. Horizontal sections were cut at
1, 3, 5, 7, 9, 11 and 13 mm from the apical foramen. A total of 1120 sections obtained were digitally photographed under a stereomicroscope set at 48X magnification.
The cross-sectional area of the canal and the gutta-percha was measured by digital image analysis and the PGFA was calculated for each section. Results: The mean of the PGFA in Thermafil (G2), ProTaper-Obturator (G5) and HEROfill (G8) groups was significantly higher than the other groups.
In G3 and G4, PGFA showed no significant difference in the apical segments whereas PGFA was significantly higher at the middle and coronal segments in G3. In G6 and
G7, PGFA showed no significant difference in the apical and middle segments whereas PGFA was significantly higher at the coronal segments in G6. Conclusion: The carrier-based gutta-percha obturation systems revealed significantly higher PGFA in comparison to single-cone and lateral
condensation techniques.
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Affiliation(s)
- Ayca Yilmaz
- Department of Endodontics Faculty of Dentistry Istanbul University Turkey
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Godiny M, Hatam R, Khavid A, Khanlari S. Apical Microleakage in Root Canals Containing Broken Rotary Instruments. IRANIAN ENDODONTIC JOURNAL 2017; 12:360-365. [PMID: 28808466 PMCID: PMC5527215 DOI: 10.22037/iej.v12i3.16656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Broken instruments in root canals complicate routine endodontic treatment. This study aimed to compare apical microleakage in root canals containing broken rotary instruments filled with mineral trioxide aggregate (MTA), calcium-enriched mixture (CEM) cement, laterally compacted gutta-percha and injected gutta-percha. METHODS AND MATERIALS In this in vitro, experimental study, 80 extracted human premolars were decoronated and then the roots were randomly divided into four groups (n=20). Root canals were instrumented with Mtwo rotary files. The files were scratched 3 mm from the tip by a high speed handpiece and they were intentionally broken in the apical third of the canals. The middle and coronal thirds of the canals were then filled with MTA, CEM cement, gutta-percha with lateral compaction technique and injected gutta-percha. Apical microleakage was measured using dye penetration method. Data were analyzed using ANOVA and Tukey's test. RESULTS Root canals filled with CEM cement showed the lowest and those filled with injected gutta-percha showed the highest microleakage according to dye penetration depth. No significant difference was noted between the microleakage of CEM cement and MTA or between lateral compaction of gutta-percha and injected gutta-percha (P>0.05). However, CEM cement and MTA groups had significantly lower microleakage than laterally compacted and injected gutta-percha groups (P<0.05). CONCLUSION Due to their superior sealing ability, MTA and CEM cement are suitable for filling of root canals containing a broken instrument compared to laterally compacted and injected gutta-percha.
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Affiliation(s)
- Mostafa Godiny
- Endodontics Department, Dental School, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Reza Hatam
- Endodontics Department, Dental School, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Atefeh Khavid
- Oral and Maxillofacial Radiology Department, Dental School, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shahryar Khanlari
- Student Research Committee, Dental School, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Neuhaus KW, Schick A, Lussi A. Apical filling characteristics of carrier-based techniques vs. single cone technique in curved root canals. Clin Oral Investig 2015; 20:1631-7. [PMID: 26612400 DOI: 10.1007/s00784-015-1674-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 11/18/2015] [Indexed: 11/24/2022]
Abstract
OBJECTIVES In this in vitro study, we assessed filling characteristics (adaptation, homogeneity, sealer percentage, position of the carrier) of warm and cold obturation methods in curved root canals. MATERIALS AND METHODS A reciprocating method was used to prepare 90 curved roots (25 ° average curvature) to an apical size of 25.08. They were then obturated with either (A) Guttafusion (VDW, Munich, Germany), (B) Thermafil (Maillefer, Ballaigues, Switzerland) or (C) single cone technique using 25.08 gutta-percha (VDW) and sealer (2Seal easymix) (n = 30 each group). Five sections in 1-mm steps were obtained from each root, beginning 1 mm short of the apex. The percentage of voids in contact with root canal walls (PVO), the proportion of voids per area (PVA) and the percentage of sealer per area (PSA) were measured. RESULTS Little to no differences between Guttafusion and Thermafil were seen in curved root canals with respect to adaptation and homogeneity in the apical region. Both methods showed significantly better adaptation and homogeneity than the single cone technique. The proportion of sealer was significantly greater when roots were obturated with Guttafusion than with Thermafil, but both warm obturation techniques had significantly smaller sealer areas than the single cone technique. CONCLUSIONS Compared to the single cone technique, a more favourable root canal filling with less sealer could be expected from both warm obturation techniques in curved root canals. CLINICAL RELEVANCE The easier-to-handle Guttafusion leads to comparable results as Thermafil in curved root canals.
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Affiliation(s)
- K W Neuhaus
- Department of Preventive, Restorative and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland.
| | - A Schick
- Department of Preventive, Restorative and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland
| | - A Lussi
- Department of Preventive, Restorative and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland
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Faus-Llácer V, Collado-Castellanos N, Alegre-Domingo T, Dolz-Solsona M, Faus-Matoses V. Measurement of the percentage of root filling in oval-shaped canals obturated with Thermafil Obturators and Beefill 2in1: In vitro study. J Clin Exp Dent 2015; 7:e299-303. [PMID: 26155350 PMCID: PMC4483341 DOI: 10.4317/jced.52177] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2014] [Accepted: 12/15/2014] [Indexed: 11/23/2022] Open
Abstract
Background The aim of the study was to measure the percentage of root canal fillings in long oval canals obturated with thermoplasticized gutta-percha techniques, Beefill 2in1® and Thermafil Obturators®. Material and Methods Fifty four mandibular incisors were selected after bucco-lingual and mesio-distal radiographs showed at 5 mm from apex an internal long:short diameter ≥2. Teeth were instrumented with Protaper Universal and divided in two groups of 27. Group 1 was obturated with Thermafil Obturators® and group 2 with Beefill 2in1®. Two horizontal sections were cut at 5 and 7 mm from the apex and photographed in a stereo-microscope. The total area of the canal and filled canal in cross-sections were measured with AutoCad and the percentages of gutta-percha-sealer and voids in the canal were obtained. Results Both systems achieved high percentage of filled canal, Thermafil 96.8% and Beefill 2in1 98.9%. The percentages of voids in both groups were very low. No significant differences were found between the two groups . The percentage obtained at 5 and 7 mm from the apex in both groups showed no significant difference. Conclusions The percentages of filled canal (gutta-percha-sealer) were high and these two thermoplasticized techniques are suitable for long oval canals obturation. Key words:Long oval canal, oval canal, thermoplasticized obturation.
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Affiliation(s)
- Vicente Faus-Llácer
- DDS, Professor. Department of Dental Pathology, Conservative Dentistry and Endodontic, Department of Stomatology, Faculty of Medicine and Odontology, University of Valencia
| | - Nicolás Collado-Castellanos
- Postgraduate Degree. Department of Dental Pathology, Conservative Dentistry and Endodontic, Department of Stomatology, Faculty of Medicine and Odontology, University of Valencia
| | - Teresa Alegre-Domingo
- Associate Professor. Department of Dental Pathology, Conservative Dentistry and Endodontic, Department of Stomatology, Valencia University Medical and Dental School
| | - María Dolz-Solsona
- Postgraduate Degree. Department of Dental Pathology, Conservative Dentistry and Endodontic, Department of Stomatology, Faculty of Medicine and Odontology, University of Valencia
| | - Vicente Faus-Matoses
- Associate Professor. Department of Dental Pathology, Conservative Dentistry and Endodontic, Department of Stomatology, Valencia University Medical and Dental School
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Greco K, Cantatore G. Un approccio critico alle tecniche di otturazione canalare. GIORNALE ITALIANO DI ENDODONZIA 2014. [DOI: 10.1016/j.gien.2014.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Guinesi AS, Faria G, Tanomaru-Filho M, Bonetti-Filho I. Influence of Sealer Placement Technique on the Quality of Root Canal Filling by Lateral Compaction or Single Cone. Braz Dent J 2014; 25:117-22. [DOI: 10.1590/0103-6440201302370] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 04/17/2014] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to evaluate the influence of the sealer placement technique on the quality of root canal filling using Lateral Compaction (LC) or Single Cone (SC). In order to do that, 60 mesial roots of mandibular first molars were prepared and divided into 2 groups (n=30), according to the filling technique: LC and SC. Each group was subdivided into 3 subgroups (n=10), according to the different sealer placement methods: A: Master gutta-percha (GP) cone; B: Lentulo spiral; C: File. The roots were sectioned at 2, 4 and 6 mm from the apex and photographed with the aid of a digital microscope. Then, areas of GP, endodontic sealer and voids were measured, and these data were subjected to statistical analysis. LC technique showed no statistically difference (p>0.05) in the percentage of GP area, sealer and voids between the subgroups at any of the three levels. After use of SC, higher percentages of sealer area were found at all levels (p<0.01) when the sealer was placed with a file. At 2 mm, higher percentage of void areas (p<0.05) was observed when the cone was used, lower percentage with K-file and the lowest percentage with Lentulo. At 4 mm, cone showed higher percentage of void areas (p<0.05). At 6 mm, there were no significant differences (p>0.05) between the three methods. Considering these results, using an instrument for sealer placement was important in the SC technique to reduce voids. Regarding LC, the sealer placement techniques provided similar results.
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Scotti N, Coero Borga FA, Alovisi M, Bergantin E, Marchionni S, Pasqualini D, Berutti E. Fiber-post bond strength in canals obturated with a cross-linked gutta-percha core obturator. Eur J Oral Sci 2014; 122:168-73. [PMID: 24495099 DOI: 10.1111/eos.12112] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2013] [Indexed: 11/29/2022]
Abstract
The aim of this in-vitro study was to evaluate the bond strength of fiber posts cemented in a root canal filled using various root-canal obturation techniques. A total of 33 monoradicular samples, treated endodontically, were randomly assigned to three groups according to the root-canal obturation technique: group 1, continuous-wave technique; group 2, plastic-obturator-core technique; and group 3, cross-linked gutta-percha obturator-core technique. Fiber posts were luted in each sample and each was sectioned perpendicular to the post axis. The push-out test was performed using a universal machine and the maximum failure load was recorded in MPa mm(-2) . Several samples were randomly chosen for scanning electron microscopy evaluation. The mean debris and dentinal tubule-opening scores were calculated separately in the coronal and apical portions. Bond strength was significantly higher in group 1 than in groups 2 and 3. Debris scores were significantly higher in the apical portion of groups 2 and 3 than in group 1. Within the limitations of this study it can be affirmed that thermoplasticized alpha gutta-percha seemed to worsen the cleaning of post-space walls and hence reduced fiber-post bond strength.
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Affiliation(s)
- Nicola Scotti
- Department of Surgical Sciences, Dental School Lingotto, University of Turin, Turin, Italy
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Somma F, Cretella G, Carotenuto M, Pecci R, Bedini R, De Biasi M, Angerame D. Quality of thermoplasticized and single point root fillings assessed by micro-computed tomography. Int Endod J 2011; 44:362-9. [DOI: 10.1111/j.1365-2591.2010.01840.x] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Marciano MA, Ordinola-Zapata R, Cunha TVRN, Duarte MAH, Cavenago BC, Garcia RB, Bramante CM, Bernardineli N, Moraes IG. Analysis of four gutta-percha techniques used to fill mesial root canals of mandibular molars. Int Endod J 2011; 44:321-9. [DOI: 10.1111/j.1365-2591.2010.01832.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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WU D, TANG Z, ZHANG G, LIU W. The sealing ability of a new silicone-based root canal filling material (GuttaFlow): an in vitro study using the percentage of gutta-percha-filled area. Dent Mater J 2011; 30:569-75. [DOI: 10.4012/dmj.2010-194] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Marciano MA, Bramante CM, Duarte MAH, Delgado RJR, Ordinola-Zapata R, Garcia RB. Evaluation of single root canals filled using the lateral compaction, tagger's hybrid, microseal and guttaflow techniques. Braz Dent J 2010; 21:411-5. [DOI: 10.1590/s0103-64402010000500006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to determine the percentage of voids, gutta-percha and root canal sealer using 4 different filling techniques. Fifty-two extracted maxillary lateral incisors were prepared using the crown-down pressureless technique. The teeth were randomly divided in 4 groups (n=13): Lateral compaction (LC), Tagger's hybrid (TH), MicroSeal (MS) and GuttaFlow (GF) techniques. Horizontal cross-sections were made at the 2, 10 and 15 mm levels from the apex. Digital images of the root canal areas were acquired using a stereomicroscope and examined using the Image Tool 3.0 software. Statistical analysis was performed using the Kruskal-Wallis test (α=0.05). In general, a significant decrease in the gutta-percha filled area and increase of sealer area were observed at the apical level for all the evaluated techniques (p<0.05). With regard to the presence of voids, no significant difference was found. MS and TH techniques showed a larger gutta-percha filled area than LC and GF techniques at the coronal and middle third level (p<0.05). From the results of the present study, it may be concluded that the gutta-percha filled area of fillings decrease at the apical level, regardless of the filling technique used.
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ElAyouti A, Kiefner P, Hecker H, Chu A, Löst C, Weiger R. Homogeneity and adaptation of endodontic fillings in root canals with enlarged apical preparation. ACTA ACUST UNITED AC 2009; 108:e141-6. [PMID: 19576806 DOI: 10.1016/j.tripleo.2009.04.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2008] [Revised: 04/08/2009] [Accepted: 04/17/2009] [Indexed: 10/20/2022]
Abstract
OBJECTIVE The aim was to compare the homogeneity and adaptation of endodontic fillings placed in root canals with wide apical preparation. STUDY DESIGN One hundred twenty root canals were prepared under simulated clinical conditions. The range of apical preparation size was 45 (narrow canals) to 60 (wide canals). The canals were filled using 4 techniques: Thermafil, GuttaFlow, apical cone, and vertical compaction. The root canals were sectioned at 5 levels. The adaptation and homogeneity of the filling were evaluated and statistically analyzed. RESULTS The percentage of canal outline in contact with the filling in the Thermafil group (91.3% [95% confidence interval (CI) 88.8%-93.6%]) was statistically significantly lower than in the other groups. No statistically significant differences were found between GuttaFlow (96.6% [95% CI 95.7%-97.5%]), apical cone (98.6% [95% CI 98.0%-99.3%]), and vertical compaction (98.1% [95% CI 96.5%-99.7%]). Similarly, the percentage of void area in Thermafil group (4.0% [95% CI 2.6%-5.3%]) was statistically significantly higher than in the other groups (GuttaFlow 1.4% [95% CI 0.1%-1.8%], apical cone 1.6% [95% CI 0.7%-2.4%], and vertical compaction 0.1% [95% CI 0.1%-1.8%]). CONCLUSIONS The tested filling techniques/materials provided similar high values for the homogeneity and adaptation to root canal walls after enlarged apical preparation, except for Thermafil at the most apical level.
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Affiliation(s)
- Ashraf ElAyouti
- Department of Conservative Dentistry and Endodontology, University of Tübingen, Tübingen, Germany.
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Ordinola-Zapata R, Bramante CM, de Moraes IG, Bernardineli N, Garcia RB, Gutmann JL. Analysis of the gutta-percha filled area in C-shaped mandibular molars obturated with a modified MicroSeal technique. Int Endod J 2009; 42:186-97. [DOI: 10.1111/j.1365-2591.2008.01495.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Evaluation of Smear Layer: A Comparison of Automated Image Analysis versus Expert Observers. J Endod 2008; 34:999-1002. [DOI: 10.1016/j.joen.2008.05.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2008] [Revised: 04/24/2008] [Accepted: 05/05/2008] [Indexed: 11/20/2022]
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