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Monteiro LPB, Guerreiro MYR, Belladonna FG, de Lima CO, da Silva EJNL, da Silva Brandão JM. Can the addition of surfactants to NaOCl irrigation impact on the percentage of voids of root canal filling? AUST ENDOD J 2024; 50:260-266. [PMID: 38243635 DOI: 10.1111/aej.12829] [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: 09/28/2023] [Revised: 12/19/2023] [Accepted: 01/04/2024] [Indexed: 01/21/2024]
Abstract
This study evaluated the impact of canal irrigation using surfactants associated to NaOCl on the percentage of voids of root canal filling through micro-computed tomographic (micro-CT) analysis. 27 mandibular mesial roots with Vertucci type II canal configuration with isthmus were selected and scanned in a micro-CT device. The specimens were assigned to three groups (n = 9), according to the irrigation solution during instrumentation: 2.5% NaOCl without additives (control), 2.5% NaOCl with 0.1% Benzalkonium Chloride and 2.5% NaOCl with 0.1% Tween 80. After obturation, the specimens were rescanned, and the percentage of voids were calculated. Data were analysed using one-way ANOVA with a significance level of 5%. The percentage of voids were similar among the groups (p > 0.05). None of the specimens showed completely voids-free areas. The addition of surfactants to NaOCl irrigation did not improve the quality of root canal filling of mandibular mesial root canals.
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Affiliation(s)
| | | | | | - Carolina Oliveira de Lima
- Department of Endodontics, Rio de Janeiro State University, Rio de Janeiro, Brazil
- Department of Endodontics, Juiz de Fora Federal University, Governador Valadares, Brazil
| | - Emmanuel João Nogueira Leal da Silva
- Department of Endodontics, Fluminense Federal University, Niterói, Brazil
- Department of Endodontics, Rio de Janeiro State University, Rio de Janeiro, Brazil
- Department of Endodontics, Grande Rio University, Duque de Caxias, Brazil
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2
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Juha W, Sarkis E, Alsayed Tolibah Y. Three-dimensional assessment of obturation volume in lateral canals after three obturation techniques with bioceramic sealer: an in vitro comparative study. BDJ Open 2024; 10:50. [PMID: 38886384 PMCID: PMC11183128 DOI: 10.1038/s41405-024-00240-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/21/2024] [Accepted: 05/31/2024] [Indexed: 06/20/2024] Open
Abstract
OBJECTIVE This study aimed to evaluate the obturation ability of simulated lateral canal in mandibular premolars at three levels (3, 5, and 7 mm) from the apex using gutta-percha and BC Sealer HiFlow (BCHiF) with different obturation techniques, including continuous wave compaction (CWC), cold lateral condensation (CLC), and single cone (SC) techniques, by a 3D assessment method of the obturation volume with cone beam computed tomography (CBCT) and MIMICS software analysis. METHODS Thirty intact human mandibular premolars were decoronated, instrumented up to #30 taper 4%, and uniformly irrigated with 5.25% NaOCl and 17% EDTA. Six simulated lateral canals (3 pairs) were prepared at 3, 5, and 7 mm from the apex in each root, using #10 modified C-file. CBCT images were obtained, and lateral canal volumes were calculated using MIMICS software. The samples were divided into three groups: CWC (n = 10), CLC (n = 10), and SC (n = 10). All groups were obturated with BCHiF and gutta-percha. Another CBCT image was taken post-obturation, and 3D lateral canal obturation volume percentages were calculated using MIMICS software. Data were analyzed using SPSS software with One-way ANOVA and Sidak tests (α = 0.05). RESULTS Significant differences were observed in the 3D lateral canal obturation volume percentage at all three levels (P < 0.05). Both CWC and CLC techniques demonstrated higher 3D lateral canal obturation volume percentages (x ¯ = 89.64% andx ¯ = 73.28%; respectively) compared to the SC group)x ¯ = 43.10%). CONCLUSION BCHiF combined with the CWC technique has a higher ability to achieve preferable 3D obturation volume in the simulated lateral canal at 3, 5, and 7 mm. CLINICAL RELEVANCE In cases requiring endodontic treatment with lateral canals, the CWC obturation technique using BCHiF with gutta-percha may offer better outcomes compared to other obturation techniques.
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Affiliation(s)
- Wahid Juha
- Department of Endodontics, Aleppo University, Aleppo, Syria
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3
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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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4
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Hu J, Zhu Y, Deng S, Wang Z, He F. Outcome of root canal treatment using warm vertical compaction with bioceramic and resin-based sealers: A randomised clinical trial. AUST ENDOD J 2023; 49 Suppl 1:170-178. [PMID: 36378149 DOI: 10.1111/aej.12713] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 10/24/2022] [Accepted: 10/29/2022] [Indexed: 11/16/2022]
Abstract
This study aimed to compare the effect of a bioceramic sealer (iRoot SP) and a resin-based sealer (AH Plus) on the outcome of root canal treatment in a 2-year follow-up. Seventy-six teeth with irreversibly or necrotic pulp were recruited. After instrumentation and disinfection, the root canals were obturated using warm vertical compaction with iRoot SP (n = 43) or AH Plus (n = 33). Patients were followed up by clinical and radiographic examination at 6 12 and 24 months with recall rates of 84.2%, 65.8% and 48.7%, respectively. During each recall session, the success rates were 80%, 85.2% and 85% in the iRoot SP group and 82.8%, 91.3% and 88.2% in the AH Plus group. The success rates of the two groups did not differ significantly (p > 0.05). The bioceramic sealer resulted in a similar clinical performance and success rate to the resin-based sealer in endodontic treatment during a 2-year follow-up.
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Affiliation(s)
- Jinghao Hu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Yunjie Zhu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Shuli Deng
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Zeji Wang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Fuming He
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
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5
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Pilot Evaluation of Sealer-Based Root Canal Obturation Using Epoxy-Resin-Based and Calcium-Silicate-Based Sealers: A Randomized Clinical Trial. MATERIALS 2022; 15:ma15155146. [PMID: 35897577 PMCID: PMC9332451 DOI: 10.3390/ma15155146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/22/2022] [Accepted: 07/22/2022] [Indexed: 02/04/2023]
Abstract
The purpose of this randomized controlled clinical trial was to assess the short-term clinical effectiveness of sealer-based root canal obturation using calcium-silicate-based sealer (CSBS) and epoxy-resin-based sealer (ERBS). A total of eighty patients (eighty teeth) were enrolled and seventy-two patients (seventy-two teeth) were randomly assigned into four different sealer groups: AH Plus (AH, Dentsply Sirona), ADseal (AD, Meta Biomed), CeraSeal (CS, Meta Biomed), or EndoSeal TCS (ES, Maruchi). At the first visit, root canal treatment was performed using ProTaper. Next, the NiTi file system and passive ultrasonic irritation was applied with 2.5% NaOCl. At the second visit, the teeth were obturated with a sealer-based obturation technique using the assigned sealer. The quality of filling obturation was evaluated with postoperative radiographs in terms of the presence of voids and sealer extrusion. The patients were recalled at 1-week, 1-month, and 3-month intervals, and pain levels were measured using visual analog scales (VAS), and clinical examination performed with percussion and palpation. Radiographs were also taken. The results were statistically compared by using the χ2 test or Fisher exact test. Among the 80 teeth included, 72 teeth received allocated intervention and 71 teeth were included in the analysis (98.6% recall). There was no significant difference among the sealers in void and sealer extrusion (p > 0.05). Postoperative pain was not indicated prominently regardless of the type of sealer. For a 3-month follow-up period, all cases were maintained successfully except for one case from AD. According to the findings, there was no significant difference between CSBS and ERBS in terms of postoperative pain or the healing process, and the variation in filling quality appears to be linked to the properties of each product.
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Lobo NS, Jacobs R, Vasconcelos KDF, Wanderley VA, Santos BCD, Marciano MA, Zaia AA. Influence of working length and anatomical complexities on the apical root canal filling: a nano-CT study. Braz Dent J 2022; 33:1-7. [PMID: 35766712 PMCID: PMC9645203 DOI: 10.1590/0103-6440202204576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 12/08/2021] [Indexed: 12/02/2022] Open
Abstract
The present study aimed to compare the filled volume by gutta-percha and sealer
in the apical region of the main canal and ramifications, after instrumentation
at two different working lengths using nano-computed tomography (nano-CT).
Twenty-two premolars with apical ramifications were selected after
micro-computed tomography evaluation and were randomly divided into groups for
further endodontic instrumentation at two different working lengths: G1 - Root
canals shaped 1 mm short of the apical foramen (n=11), and G2 - Root canals
shaped at the apical foramen (n=11). After completing root treatment, nano-CT
images were acquired, and the filled volume by gutta-percha and sealer in the
main canal apical 0-4 mm and 0-1 mm ranges, and apical ramifications were
objectively measured by an operator specialized in both radiology and
endodontics, blinded for both groups. The Mann-Whitney test was applied to
compare both groups regarding the filling of the main canal apical ranges and
apical ramifications with a significance level of 5% (α ≤ 0.05). It was observed
that root canals shaped at the apical foramen had a larger volume of the main
canal filled than root canals shaped 1 mm short of the apical foramen, at both
apical ranges (0-4 and 0-1 mm) (p<0.05). Regarding the filling of the apical
ramifications, there was no significant difference between groups (p>0.05).
In conclusion, the root canals shaped at apical foramen exhibited increased
filling volume of the main canal in the apical region. However, neither of both
working lengths influenced filling of the apical ramifications.
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Affiliation(s)
- Natalia Siqueira Lobo
- Department of Restorative Dentistry, Endodontic Division, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil
| | - Reinhilde Jacobs
- OMFS IMPATH research group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven and Oral & Maxillofacial Surgery, Leuven, Belgium.,Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Karla de Faria Vasconcelos
- OMFS IMPATH research group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven and Oral & Maxillofacial Surgery, Leuven, Belgium
| | - Victor Aquino Wanderley
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil
| | | | - Marina Angélica Marciano
- Department of Restorative Dentistry, Endodontic Division, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil
| | - Alexandre Augusto Zaia
- Department of Restorative Dentistry, Endodontic Division, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil
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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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8
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Özyürek T, Keskin N, Aydın Z. A micro-computed tomographic assessment of oval-shaped root canals obturated with bioceramic sealer using different obturation techniques. BALKAN JOURNAL OF DENTAL MEDICINE 2022. [DOI: 10.5937/bjdm2202100q] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Background/Aim: To evaluate void volumes in oval-shaped root canals obturated with three different obturation systems using microcomputed tomography (micro-CT). Material and Methods: Twenty-four distal roots of mandibular molar teeth canals were prepared and randomly divided into three groups (n = 8 in each group). The canals were obturated using single cone (SC), GuttaCore (GC), and warm vertical compaction (WVC) techniques. Each specimen was scanned using a micro-CT device. The volumes of the voids were calculated, and the data were statistically analyzed using a one-way analysis of variance and post hoc Tukey's (P < .05). Results: The void volumes in the WVC group were significantly lower than those in the other groups (P < .05). When different root canal parts were examined, the void volumes increased significantly from the apical to the coronal level in the GC and SC groups (P < .05). In the WVC group, most voids were observed in the middle part (P < .05), whereas there was no significant difference in void volumes in the coronal and apical parts (P > .05). Conclusions: None of the systems provided void-free root filling. However, the void volume using the WVC system was significantly lower than that observed using the other systems.
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9
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Wilkoński W, Jamróz-Wilkońska L, Kępczyński M, Zapotoczny S, Maziarz U, Opiła J, Giardino L. The impact of irrigation protocols on epoxy sealer penetration depth in dentinal tubules. Study involving laser confocal microscopy. AUST ENDOD J 2021; 48:266-273. [PMID: 34390525 DOI: 10.1111/aej.12556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 07/01/2021] [Accepted: 08/02/2021] [Indexed: 11/29/2022]
Abstract
The aim was to assess the impact of irrigation protocols ended with ethanol or chlorhexidine on AH Plus penetration into dentinal tubules. 45 root canals were prepared to ISO 40/04, divided into three groups and irrigated with three protocols: Group 1 (control): 5.25% NaOCl; Group 2: 40% CA (citric acid), 5.25% NaOCl, 40% CA, water, ethanol; Group 3: 40% CA, 5.25% NaOCl, 40% CA, water, 2% chlorhexidine. Canals were filled using vertical condensation technique with gutta-percha and fluorescein-stained AH Plus sealer. After 72 h, 1 mm thick cross-sections were cut at 2, 5, 8 mm from the apex. Confocal laser microscope was used to measure the sealer penetration into dentinal tubules. Mean depth of sealer penetration (in micrometres) was 107, 131, 170 (Group 1); 146, 233, 317 (Group 2); 185, 301, 542 (Group 3); in apical, middle and coronal parts, respectively. Irrigation protocol ended with chlorhexidine resulted in the deeper sealer penetration compared with alcohol.
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Affiliation(s)
| | | | | | | | - Urszula Maziarz
- Faculty of Chemistry, Jagiellonian University, Kraków, Poland
| | - Janusz Opiła
- Faculty of Management of AGH University of Science and Technology, Kraków, Poland
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10
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Suciu I, Dimitriu B, Ciocardel M, Chirila M, Amza O, Scarlatescu S, Preoteasa C, Grigorie M, Voiculeanu M. Evaluation of the sealer/gutta-percha ratio on sets of root section surfaces of some extracted teeth sealed using the cold lateral condensation technique. J Med Life 2021; 14:337-346. [PMID: 34377199 PMCID: PMC8321605 DOI: 10.25122/jml-2021-0102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 05/27/2021] [Indexed: 11/23/2022] Open
Abstract
Canal filling must be well adapted to the walls of the root canal to prevent bacterial infiltration. Endodontic seals play an essential role in ensuring tightness, without which the canal filling would suffer infiltrations. This study aimed to evaluate the areas occupied by the two components of the canal filling, as well as the sealer/gutta-percha ratio in the root canals of the maxillary central incisors after their filling using the cold lateral condensation technique with gutta-percha. Thirty extracted upper central incisors were rotatably prepared with ProTaper Universal up to F3 and sealed using the cold lateral condensation technique with gutta-percha. After setting the sealer, the roots of the teeth were sectioned perpendicularly to 1 (L1), 3 (L3), 6 (L6), and 8 (L8) mm from the apex. The surface of the sections was analyzed with a Leica EZ4D stereomicroscope and photographed at two magnification orders: 10x and 25x. The areas corresponding to the gutta-percha, sealer, gaps, and root canal were expressed in pixels using the ImageJ software, version 1.50i. The difference in the representation of sealer areas, gutta-percha and voids was statistically significantly different for all four sections analyzed. The best adaptation of the canal obturation was observed in L1 and L3. The gutta-percha area was statistically significantly higher than that of the sealer for the L1, L3, and L6 levels, while the sealer/gutta-percha ratio recorded the lowest value at the L3 level (0, 30) and the highest at its L8 (0.70) level, without registering statistically significant differences regarding the area at the four analyzed levels. The voids were mostly absent or recorded a minimal percentage area (<1%). Cold lateral condensation of gutta-percha has led to a good adaptation of gutta-percha to the root canal wall, with a small amount of sealer, especially to the sections made at 3 mm from the apex. Given the limitations of this study, we noted that the voids were few – observed in the 6 and 8 mm sections – and were negligible in many cases.
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Affiliation(s)
- Ioana Suciu
- Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Bogdan Dimitriu
- Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Mihai Ciocardel
- Department of Geology, Petroleum-Gas University of Ploiesti, Ploiesti, Romania
| | - Mihaela Chirila
- Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Oana Amza
- Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Sinziana Scarlatescu
- Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Cristina Preoteasa
- Department of Geology, Petroleum-Gas University of Ploiesti, Ploiesti, Romania
| | - Mihaela Grigorie
- Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Monica Voiculeanu
- Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
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11
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Pérez-Alfayate R, Mercade M, Algar-Pinilla J, Cisneros-Cabello R, Foschi F, Cohen S. Root Canal Filling Quality Comparison of a Premixed Calcium Silicate Endodontic Sealer and Different Carrier-Based Obturation Systems. J Clin Med 2021; 10:jcm10061271. [PMID: 33803893 PMCID: PMC8003317 DOI: 10.3390/jcm10061271] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/13/2021] [Accepted: 03/16/2021] [Indexed: 02/03/2023] Open
Abstract
Background: The number of voids within the root canal obturation is a relevant parameter to describe the quality of the technique, as well as to predict long-term prognosis. The aim of this study was to evaluate the quality of root canal obturation in curved root canals filled with Thermafil, GuttaCore, GuttaFusion and lateral compaction with AH Plus and EndoSequence BC sealer, by means of percentage of gutta-percha and sealer filled area. Methods: 200 curved canals of mandibular molars were divided in five groups (n = 40). Each specimen was evaluated at 3, 6 and 9 mm from the apex. A total of 600 samples were analyzed. Obturation was performed with either Thermafil (TH), GuttaCore (GC), GuttaFusion (GF) or lateral compaction (LC), using AH Plus as sealer. In another group EndoSequence BC sealer (BC) was used. Subgroups (n = 20) were made depending on the use of sonic activation during the placement of the sealer. The percentage of total obturation material was analyzed as an indirect measurement of percentage of voids. Results: GF showed a better performance at the apical level, while GC showed the higher percentage of total obturation at the coronal area. No differences were observed for the activation of sealers in any of the groups. Statistical analysis was performed by using two-way ANOVA. Statistical significance was set at CI: 95% (p < 0.05). Conclusions: Sonic activation of sealers did not show any benefit to avoid the presence of voids within obturation of curved canals. Following the manufacturer recommendations, we found that TH did not show benefits when applied to curved canals.
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Affiliation(s)
- Ruth Pérez-Alfayate
- Department of Endodontics, Universidad Europea de Madrid, 28045 Madrid, Spain; (R.P.-A.); (J.A.-P.); (R.C.-C.)
| | - Montse Mercade
- Department of Dentistry, Universitat de Barcelona, 08907 Barcelona, Spain;
- Biomedical Research Institute (IDIBELL), 08907 Barcelona, Spain
| | - Juan Algar-Pinilla
- Department of Endodontics, Universidad Europea de Madrid, 28045 Madrid, Spain; (R.P.-A.); (J.A.-P.); (R.C.-C.)
| | - Rafael Cisneros-Cabello
- Department of Endodontics, Universidad Europea de Madrid, 28045 Madrid, Spain; (R.P.-A.); (J.A.-P.); (R.C.-C.)
| | - Federico Foschi
- Department of Endodontics, Faculty of Dentistry, Oral & Craniofacial Sciences, Guy’s Dental Hospital, London SE1 9RT, UK
- Department of Therapeutic Dentistry, I. M. Sechenov First Moscow State Medical University, 119146 Moscow, Russia
- Peninsula School of Medicine and Dentistry, Plymouth University, Plymouth PL4 8AA, UK
- Correspondence:
| | - Stephen Cohen
- Stephen Cohen Endodontics Clinic, San Francisco, CA 94108, USA;
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12
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Rodrigues CT, Jacobs R, Vasconcelos KF, Lambrechts P, Rubira-Bullen IRF, Gaêta-Araujo H, Oliveira-Santos C, Duarte MAH. Influence of CBCT-based volumetric distortion and beam hardening artefacts on the assessment of root canal filling quality in isthmus-containing molars. Dentomaxillofac Radiol 2021; 50:20200503. [PMID: 33400563 DOI: 10.1259/dmfr.20200503] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVES To evaluate the influence of artefacts in cone beam CT (CBCT) images of filled root canals in isthmus-containing molars. METHODS 10 teeth presenting canals with an isthmus were instrumented and filled with a thermoplasticised obturation technique. The teeth were scanned using a micro-CT device and two CBCT devices: 3D Accuitomo 170 (ACC) and NewTom VGi evo (NT), with different acquisition protocols: larger and smaller voxel size. Three examiners assessed the CBCT images for: (1) detection of filling voids; (2) assessment of under- or overestimation of the filling material and (3) resemblance of CBCT images to the reference standard. Analyses of Task 1 yielded accuracy, sensitivity and specificity for detection of filling voids. For tasks 2 and 3, statistical analysis was performed using Wilcoxon test. The level of significance was set at p < .05. RESULTS For Task 1, ACC showed higher sensitivity, whereas NT presented higher specificity. No significant difference was found between the protocols in ACC, however, for NT, differences between protocols were significant for all diagnostic values. In Task 2, visualisation of the filling was overestimated for NT, while for ACC, underestimation was observed. For Task 3, images with smaller voxel size were more similar to the reference image, for both CBCT devices. CONCLUSIONS Different artefacts compromise the detection of filling voids on CBCT images of canals in mandibular molars with isthmus. ACC and NT present rather similar diagnostic accuracy, even though artefact expression remains device-specific.
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Affiliation(s)
- Clarissa Teles Rodrigues
- Department of Restorative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Reinhilde Jacobs
- Department of Imaging and Pathology, Faculty of Medicine, OMFS IMPATH Research Group, KU Leuven, Leuven, Belgium.,Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium.,Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Karla Faria Vasconcelos
- Department of Imaging and Pathology, Faculty of Medicine, OMFS IMPATH Research Group, KU Leuven, Leuven, Belgium.,Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Paul Lambrechts
- Department of Oral Health Sciences, Endodontology, KU Leuven and Dentistry, University Hospitals Leuven, Leuven, Belgium.,Biomaterials-BIOMAT, Leuven, Belgium
| | | | - Hugo Gaêta-Araujo
- Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, São Paulo, Brazil
| | - Christiano Oliveira-Santos
- Department of Stomatology, Public Oral Health, and Forensic Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Marco Antonio Hungaro Duarte
- Department of Restorative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, São Paulo, Brazil
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13
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Hirai VHG, Machado R, Budziak MCL, Piasecki L, Kowalczuck A, Neto UXDS. Percentage of Gutta-Percha-, Sealer-, and Void-Filled Areas in Oval-Shaped Root Canals Obturated with Different Filling Techniques: A Confocal Laser Scanning Microscopy Study. Eur J Dent 2020; 14:8-12. [PMID: 32062854 PMCID: PMC7069748 DOI: 10.1055/s-0040-1701543] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Objective
This study compared different obturation techniques, analyzing percentage of areas filled with gutta-percha, sealer, and voids (PGFA, PSFA, and PVFA, respectively) in oval-shaped root canals.
Materials and Methods
A total of 60 extracted human mandibular central incisors were decoronated, instrumented, and irrigated using the same protocol. After drying, the root canal was filled with AH Plus labeled with 0.1% rhodamine B dye using a Lentulo spiral. The filling procedure was performed by dividing the teeth into four groups according to the respective technique: G1, cold lateral condensation; G2, continuous wave of condensation; G3, modified cold lateral condensation using an F3 master cone; and G4, modified continuous wave of condensation using an ISO (International Organization for Standardization) sized 30 gutta-percha cone. Then, slices measuring 1.5 mm in thickness were obtained 3 and 6 mm from the apex and evaluated by confocal laser scanning microscopy to determine PGFA, PSFA, and PVFA.
Statistical Analysis
The data were analyzed statistically with analysis of variance and Games-Howell’s tests (
p
= 0.05).
Results
The groups showed no significant differences in the apical third (3 mm from the apex). In the middle third (6 mm from the apex), G3 and G1 showed higher PGFA and PVFA, respectively. G3 showed lower PSFA than G2 and G4. Both cold techniques (G1 and G3) promoted lower PSFA than both warm techniques (G2 and G4).
Conclusions
Notwithstanding the limitations of this
in vitro
study, PGFA, PSFA, and PVFA ranged significantly only in the middle third, as observed by the different filling techniques. Higher PGFA and PVFA values were obtained for G3 and G1, respectively. Both cold techniques promoted lower PSFA than both warm techniques.
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Affiliation(s)
- Vinicio Hidemitsu Goto Hirai
- Department of Endodontics, School of Health and Bioscience, Pontifical Catholic University of Paraná, Curitiba, Paraná, Brazil
| | - Ricardo Machado
- Clinical Practice Limited to Endodontics, Navegantes, Santa Catarina, Brazil
| | - Maria Carolina Lucato Budziak
- Department of Endodontics, School of Health and Bioscience, Pontifical Catholic University of Paraná, Curitiba, Paraná, Brazil
| | - Lucila Piasecki
- Department of Periodontics and Endodontics, University at Buffalo, Buffalo, New York, United States
| | - Alexandre Kowalczuck
- Department of Endodontics, School of Health and Bioscience, Pontifical Catholic University of Paraná, Curitiba, Paraná, Brazil
| | - Ulisses Xavier da Silva Neto
- Department of Endodontics, School of Health and Bioscience, Pontifical Catholic University of Paraná, Curitiba, Paraná, Brazil
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14
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Ahluwalia Y, Sharma U, Kumar N, Malik A, Singh A, Narayan A. Adaptation of Single-Cone Gutta-Percha in Curved Canals Prepared and Obturated with Protaper and Heroshaper Systems by Using Cone Beam Computed Tomography. J Int Soc Prev Community Dent 2019; 9:185-193. [PMID: 31058070 PMCID: PMC6489517 DOI: 10.4103/jispcd.jispcd_398_18] [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] [Received: 11/11/2018] [Accepted: 12/21/2018] [Indexed: 11/04/2022] Open
Abstract
Objective The aim of this study is to prepare and obturate the curved canals of the mesiobuccal root of maxillary first molar with four different file systems that is protaper hand files, rotary pro taper (RP) files, heroshaper hand files, and rotary hero shapers files and to evaluate the adaptation of their single-cone Gutta-percha by cone beam computed tomography (CBCT). Materials and Methods Eighty teeth were selected and were divided into two groups (G1A1, G1A2 and G2A1, G2A2 as hand and RP file system, G1A3, G1A4 and G2A3, G2A4 as hand and rotary hero shaper files system) of fourth teeth each. After access opening working length of the mesiobuccal canal was established. The distobuccal and palatal roots of the samples were removed using the diamond disc at the furcation level. "Endoanalyser" software was used to measure Schneider's angle on the preoperative radiograph. This angle was measured by drawing two lines-one parallel to the long axis of the canal, in the coronal third, and the second line from the apical foramen to intersect the point where the first line left the long axis of the canal. The canals of each group were then prepared according to the manufacturer's instructions for protaper hand files, RP files, heroshaper hand files, and rotary hero shapers files systems. Direct digital radiography image of all the samples was obtained. And then, the samples were exposed to CBCT to evaluate their single-cone adaptations. The data were analyzed using SPSS 20, IBM, Armonk, NY, United States of America. Results The null hypothesis that there will not be any gap area in the adaptation of their single-cone of different file system was rejected. Minimal gap area was seen in rotary hero shapers file system (0.001 mm2) and was maximum in hand protaper (HP) file system (0.015 mm2). Conclusion CBCT is a useful tool in detecting the gap area after obturation in curved canals. The HP single-cone adaptation showed the maximum gap area and rotary heroshaper single-cone adaptation showed the minimum gap area.
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Affiliation(s)
- Yuvika Ahluwalia
- Reader, Institute of Dental Sciences and Technologies, Kadrabad, Modinagar Uttar Pardesh, Ghaziabad, India
| | - Utsav Sharma
- Senior Lecturer, Department of Conservative Dentistry and Endodontics, Seema Dental College and Hospital, Rishikesh, Uttarakhand, India
| | - Neeraj Kumar
- Professor and Head, Department of Conservative Dentistry and Endodontics, CDCRI, Chhattisgarh, India
| | - Azhar Malik
- Professor and Head, Department of Conservative Dentistry and Endodontics, Indira Gandhi Government Dental College, Jammu, Jammu and Kashmir, India
| | - Anshdeep Singh
- Reader, Department of Conservative Dentistry and Endodontics, Seema Dental College and Hospital, Rishikesh, Uttarakhand, India
| | - Amit Narayan
- Reader, Department of Conservative Dentistry and Endodontics, Azamgarh Dental College, Azamgarh, Uttar Pradesh, India
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15
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Zhang L, Li QL, Cao Y, Wang Y. Regenerating a monoblock to obturate root canalsvia a mineralising strategy. Sci Rep 2018; 8:13356. [PMID: 30190589 PMCID: PMC6127146 DOI: 10.1038/s41598-018-31643-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/22/2018] [Indexed: 11/17/2022] Open
Abstract
To develop a novel strategy for sealing and obturating dental root canals by tooth-like tissue regeneration, premolars with mature root apices were freshly collected, and root canals were prepared by following the clinical protocols in vitro. The teeth were immersed in supersaturated calcium and phosphate solution containing gallic acid and fluoride. At certain intervals, the dental roots were taken out, and their mineral precipitates were characterised by scanning electron microscopy, energy-dispersive spectroscopy mapping, X-ray diffraction and transmission electron microscopy. The cytocompatibility of the mineralizing products were evaluated with rabbit bone-marrow-derived mesenchymal stem cells in vitro. Results showed that the precipitates were mainly composed of fluoridated hydroxyapatite with ahexagonal prism morphology. Fluoridated hydroxyapatite initially nucleated and grew from the root canal dentine surface to the root canal centre. The fluoridated hydroxyapatite precipitate and root canal dentine intergraded together such that the interface became hardly distinguishable. The fluoridated hydroxyapatite precipitate grew into and obturated the dentinal tubules. In the root canal, the regenerated fluoridated hydroxyapatite densely packed and bundled together with a c-axis extension. After 7 days of mineralisation, the root canal was completely obturated, and the apical foramen was sealed. The mineralizing products had good biocompatibility with the cells, and the cells grew well on the mineralized surface. Biomimetic mineralisation strategy provides a novel means to regenerate tooth-like tissue to seal the root canal system permanently other than by passive synthetic material filling.
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Affiliation(s)
- Le Zhang
- College & Hospital of Stomatology, Key Lab. of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, 230032, China
| | - Quan-Li Li
- College & Hospital of Stomatology, Key Lab. of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, 230032, China.
| | - Ying Cao
- College & Hospital of Stomatology, Key Lab. of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, 230032, China
| | - Yun Wang
- College of Stomatology, Wannan Medical College, Wuhu, 241002, China.
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16
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Alcalde MP, Bramante CM, Vivan RR, Amorso-Silva PA, Andrade FBD, Duarte MAH. Intradentinal antimicrobial action and filling quality promoted by ultrasonic agitation of epoxy resin-based sealer in endodontic obturation. J Appl Oral Sci 2018; 25:641-649. [PMID: 29211285 PMCID: PMC5701534 DOI: 10.1590/1678-7757-2017-0090] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 06/02/2017] [Indexed: 12/19/2022] Open
Abstract
The aim of this study was evaluate the influence of ultrasonic activation (UA) of AH Plus to improve canal and isthmus filing, and analyse the antimicrobial effect against Enterococcus faecalis within dentinal tubules.
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Affiliation(s)
- Murilo Priori Alcalde
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos, Bauru, SP, Brasil
| | - Clóvis Monteiro Bramante
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos, Bauru, SP, Brasil
| | - Rodrigo Ricci Vivan
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos, Bauru, SP, Brasil
| | - Pablo Andrés Amorso-Silva
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos, Bauru, SP, Brasil
| | - Flaviana Bombarda de Andrade
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos, Bauru, SP, Brasil
| | - Marco Antonio Hungaro Duarte
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos, Bauru, SP, Brasil
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17
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3D Micro-CT Analysis of Void and Gap Formation in Curved Root Canals. Eur Endod J 2017; 2:1-5. [PMID: 33403353 PMCID: PMC7757970 DOI: 10.14744/eej.2017.17004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 03/04/2017] [Accepted: 05/05/2017] [Indexed: 11/20/2022] Open
Abstract
Objective: This study used microcomputed tomography (micro-CT) to compare the volumes of voids and gaps in curved root canals instrumented and filled using various techniques. Methods: Twenty extracted mandibular first molars with two curved mesial root canals were used. Root canals were instrumented using a self-adjusting file (SAF) or Revo-S file system. For standardization, mesiobuccal canals were instrumented with SAF and mesiolingual canals were instrumented with Revo-S in each root. The canals were divided into four experimental groups (n=10 in each). The canals were then filled via cold lateral compaction (CLC) or a thermoplasticized injectable technique (TT) using gutta-percha and AH Plus root canal sealer. The roots were scanned with a micro-CT, and the volumes of the voids and gaps were calculated using three-dimensional (3D) micro-CT images. Data were analyzed using unpaired t- and Kruskal-Wallis tests. A value of P<0.05 was considered significant. Results: None of the tested techniques provided void- or gap-free fillings. Nevertheless, the SAF showed more gap formation than the Revo-S, and TT showed higher gap formation in all experimental groups. These differences, however, were not statistically significant (P>0.05). Conclusion: The SAF and Revo-S rotary file systems yielded comparable results. No statistically significant difference was found between the results of the various instrumentation and filling techniques.
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18
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Küçükkaya Eren S, Askerbeyli Örs S, Yılmaz Z. Effect of Post Space Preparation on Apical Obturation Quality of Teeth Obturated with Different Techniques: A Micro–computed Tomographic Study. J Endod 2017; 43:1152-1156. [DOI: 10.1016/j.joen.2017.01.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 01/23/2017] [Accepted: 01/30/2017] [Indexed: 12/01/2022]
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19
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Cruz ATG, Grecca FS, Piasecki L, Wichnieski C, Westphalen VPD, Carneiro E, Fariniuk LF, Neto UXDS. Influence of the Calcium Hydroxide Intracanal Dressing on Dentinal Tubule Penetration of Two Root Canal Sealers. Eur Endod J 2017; 2:1-6. [PMID: 33403323 PMCID: PMC7757940 DOI: 10.5152/eej.2017.16032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 10/16/2016] [Accepted: 03/23/2017] [Indexed: 11/22/2022] Open
Abstract
Objective The aim of this study was to evaluate the effect of a calcium hydroxide (CH) dressing on the tubular penetration of two endodontic sealers, AH Plus (Dentsply Maillefer, Ballaigues, Switzerland) and MTA Fillapex (Angelus, Londrina, Brazil). Methods Seventy-two mandibular premolars with a single root canal were prepared with ProFile.04 rotary instruments (Dentsply Maillefer) and divided into four groups. In two groups, an intracanal CH dressing was placed for 15 days. The obturations were performed with lateral condensation of gutta-percha in combination with one of the tested sealers. The roots were transversely sectioned at the apical and middle levels. The percentage of sealer penetration in the root canal walls and the percentage of impregnated dentin area in the transverse sections were obtained using confocal laser scanning microscopy. Statistical analysis was performed using one-way analysis of variance (ANOVA) and Games-Howell test. Results The CH dressing reduced the mean value of tubular penetration in the middle third of teeth obturated with AH Plus (P<0.01), whereas no difference was observed at the apical sections for both sealers. Conclusion The CH dressing did not interfere with the apical penetration of both tested sealers, however, decreased the tubular penetration in the middle third of the AH Plus root canal fillings. Overall, MTA Fillapex presented higher tubular penetration than AH Plus obturations.
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Affiliation(s)
| | - Fabiana Soares Grecca
- Department of Endodontics, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Lucila Piasecki
- Department of Periodontics and Endodontics, University of Buffalo, New York, USA
| | - Caroline Wichnieski
- Department of Endodontics, Pontifical Catholic University of Paraná, Curitiba, Brazil
| | | | - Everdan Carneiro
- Department of Endodontics, Pontifical Catholic University of Paraná, Curitiba, Brazil
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20
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Presence of Voids after Continuous Wave of Condensation and Single-cone Obturation in Mandibular Molars: A Micro-computed Tomography Analysis. J Endod 2017; 43:638-642. [DOI: 10.1016/j.joen.2016.11.027] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 11/30/2016] [Accepted: 11/30/2016] [Indexed: 11/18/2022]
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21
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Celikten B, F Uzuntas C, I Orhan A, Tufenkci P, Misirli M, O Demiralp K, Orhan K. Micro-CT assessment of the sealing ability of three root canal filling techniques. J Oral Sci 2017; 57:361-6. [PMID: 26666860 DOI: 10.2334/josnusd.57.361] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
This study used micro-CT to compare three obturation techniques with respect to void occurrence in canals filled with bioceramic sealer. Thirty extracted first mandibular premolars were prepared with a ProTaper Universal system and randomly allocated to three groups. Canals were obturated with gutta-percha and bioceramic root canal sealer, using either single-cone, lateral compaction, or Thermafil filling technique. Each tooth was then scanned with micro-CT. Voids in 2D cross-sectional images and void volumes in 3D images of all root thirds were assessed in relation to obturation technique. There was no significant difference between obturation techniques in the proportion of sections with voids (P > 0.05). However, the results of the obturation techniques significantly differed in relation to root region (P < 0.05). In conclusion, no root filling technique resulted in void-free specimens. Void volumes were highest for the single-cone technique and lowest for Thermafil, in all regions (P < 0.05).
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Affiliation(s)
- Berkan Celikten
- Department of Endodontics, Faculty of Dentistry, Ankara University
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22
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Zogheib C, Hanna M, Pasqualini D, Naaman A. Quantitative volumetric analysis of cross-linked gutta-percha obturators. ANNALI DI STOMATOLOGIA 2017; 7:46-51. [PMID: 28149450 DOI: 10.11138/ads/2016.7.3.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
AIM The purpose of this study was to evaluate the effects of technique on the filling quality of 2 recently introduced obturation systems comparatively with warm vertical compaction using micro-computed tomography. METHODS 36 single-rooted teeth were selected, root canals prepared, and assigned to 3 groups (n=12), according to the filling technique: warm vertical compaction technique WVC, GuttaCore (Dentsply Tulsa Dental Specialties, Tulsa, OK) and Gutta Fusion (VDW, Germany). Each specimen was scanned using a micro-CT. Percentage of voids was calculated and data statistically analyzed using Kruskal Wallis test with a significance level of 5%. RESULTS All obturations showed satisfactory similar results at the apical level. Differences between the three obturation methods were not significant at 1 mm (-p-value >0.05), 3 mm (-p-value >0.05) and 5 mm (-p-value >0.05). No root fillings were void-free. No significant difference was found between the WVC technique, the GuttaCore technique and the Gutta Fusion technique concerning percentage of apical voids regardless of canal level. CONCLUSION This study shows the efficiency of cross-linked obturators in filling root canals hermetically by comparing them to the warm vertical compaction technique. Results show that these obturation techniques were equally sufficient concerning apical adaptation making them appropriate to use in endodontic obturations.
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Affiliation(s)
- Carla Zogheib
- Ass Pr, Department of Endodontics, St Joseph University, Beirut, Lebanon
| | - Monique Hanna
- Department of Endodontics, St Joseph University, Beirut, Lebanon
| | | | - Alfred Naaman
- Pr, Department of Endodontics, St Joseph University, Beirut, Lebanon
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23
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Medeiros PL, Bernardineli N, Cavenago BC, Torres SA, Duarte MAH, Bramante CM, Marciano MA. Sealing ability of MTA, CPM, and MBPc as root-end filling materials: a bacterial leakage study. J Appl Oral Sci 2016; 24:148-52. [PMID: 27119763 PMCID: PMC4836922 DOI: 10.1590/1678-775720130103] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 06/12/2014] [Indexed: 01/28/2023] Open
Abstract
Objectives To evaluate the sealing ability of three root-end filling materials (white MTA, CPM, and MBPc) using an Enterococcus faecalis leakage model. Material and Methods Seventy single-root extracted human teeth were instrumented and root-ends were resected to prepare 3 mm depth cavities. Root-end preparations were filled with white MTA, CPM, and MBPc cements. Enterococcus faecalis was coronally introduced and the apical portion was immersed in BHI culture medium with phenol red indicator. The bacterial leakage was monitored every 24 h for 4 weeks. The statistical analysis was performed using the Wilcoxon-Gehan test (p<0.05). Results All cements showed bacterial leakage after 24 hours, except for the negative control group. The MBPc showed significantly less bacterial leakage compared with the MTA group (p<0.05). No significant differences were found between the CPM and the other groups. Conclusions The epoxy resin-based cement MBPc had lower bacterial leakage compared with the calcium silicate-based cements MTA and CPM.
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Affiliation(s)
- Paulo Leal Medeiros
- Departamento de Dentística, Materiais Odontológicos e Endodontia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Norberti Bernardineli
- Departamento de Dentística, Materiais Odontológicos e Endodontia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Bruno Cavalini Cavenago
- Departamento de Dentística, Materiais Odontológicos e Endodontia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Sérgio Aparecido Torres
- Departamento de Microbiologia e Imunologia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Marco Antonio Hungaro Duarte
- Departamento de Dentística, Materiais Odontológicos e Endodontia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Clovis Monteiro Bramante
- Departamento de Dentística, Materiais Odontológicos e Endodontia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Marina Angélica Marciano
- Departamento de Dentística, Materiais Odontológicos e Endodontia, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
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24
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Min Y, Song Y, Gao Y, Dummer PMH. Theoretical distribution of gutta-percha within root canals filled using cold lateral compaction based on numeric calculus. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY. MEDICAL SCIENCES = HUA ZHONG KE JI DA XUE XUE BAO. YI XUE YING DE WEN BAN = HUAZHONG KEJI DAXUE XUEBAO. YIXUE YINGDEWEN BAN 2016; 36:588-593. [PMID: 27465338 DOI: 10.1007/s11596-016-1630-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 06/22/2016] [Indexed: 06/06/2023]
Abstract
This study aimed to present a new method based on numeric calculus to provide data on the theoretical volume ratio of voids when using the cold lateral compaction technique in canals with various diameters and tapers. Twenty-one simulated mathematical root canal models were created with different tapers and sizes of apical diameter, and were filled with defined sizes of standardized accessory gutta-percha cones. The areas of each master and accessory gutta-percha cone as well as the depth of their insertion into the canals were determined mathematically in Microsoft Excel. When the first accessory gutta-percha cone had been positioned, the residual area of void was measured. The areas of the residual voids were then measured repeatedly upon insertion of additional accessary cones until no more could be inserted in the canal. The volume ratio of voids was calculated through measurement of the volume of the root canal and mass of gutta-percha cones. The theoretical volume ratio of voids was influenced by the taper of canal, the size of apical preparation and the size of accessory gutta-percha cones. Greater apical preparation size and larger taper together with the use of smaller accessory cones reduced the volume ratio of voids in the apical third. The mathematical model provided a precise method to determine the theoretical volume ratio of voids in root-filled canals when using cold lateral compaction.
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Affiliation(s)
- Yi Min
- State Key Laboratory of Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Ying Song
- State Key Laboratory of Oral Diseases, West China College & Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yuan Gao
- State Key Laboratory of Oral Diseases, West China College & Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Paul M H Dummer
- School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK
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Schäfer E, Schrenker C, Zupanc J, Bürklein S. Percentage of Gutta-percha Filled Areas in Canals Obturated with Cross-linked Gutta-percha Core-carrier Systems, Single-Cone and Lateral Compaction Technique. J Endod 2016; 42:294-8. [DOI: 10.1016/j.joen.2015.10.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 10/26/2015] [Accepted: 10/28/2015] [Indexed: 11/30/2022]
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Pereira RD, Brito-Júnior M, Leoni GB, Estrela C, de Sousa-Neto MD. Evaluation of bond strength in single-cone fillings of canals with different cross-sections. Int Endod J 2016; 50:177-183. [DOI: 10.1111/iej.12607] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 12/27/2015] [Indexed: 11/27/2022]
Affiliation(s)
- R. D. Pereira
- Department of Restorative Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto Brazil
| | - M. Brito-Júnior
- Department of Dentistry; State University of Montes Claros; Montes Claros Brazil
| | - G. B. Leoni
- Department of Restorative Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto Brazil
| | - C. Estrela
- Department of Endodontics; Federal University of Goiás; Goiânia GO Brazil
| | - M. D. de Sousa-Neto
- Department of Restorative Dentistry; School of Dentistry of Ribeirão Preto; University of São Paulo; Ribeirão Preto Brazil
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Oh S, Perinpanayagam H, Kum DJW, Lim SM, Yoo YJ, Chang SW, Lee W, Baek SH, Zhu Q, Kum KY. Evaluation of three obturation techniques in the apical third of mandibular first molar mesial root canals using micro-computed tomography. J Dent Sci 2016; 11:95-102. [PMID: 30894953 PMCID: PMC6395149 DOI: 10.1016/j.jds.2015.11.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 11/06/2015] [Indexed: 12/02/2022] Open
Abstract
Background/purpose Recent studies have demonstrated a high incidence of isthmuses in mandibular first molar mesial roots, and intratubular mineralization following mineral trioxide aggregate obturation. This study assessed the filling quality of three obturation techniques in the apical 5 mm of mandibular first molar mesial root canals. Materials and methods Sixty extracted human mandibular first molar mesial roots with two separate canals that had interconnecting isthmuses, were prepared to an apical size of 40/0.06. They were allocated to three groups of 20 roots for obturation by either cold lateral compaction (CLC) or the continuous wave of condensation (CW) that used gutta-percha and AH Plus sealer, or by an orthograde canal obturation using OrthoMTA. The obturated roots were scanned by micro-computed tomography and assessed for the volumetric ratio (%) of gutta-percha, sealer, and OrthoMTA within the main canals or isthmuses in the apical 5 mm area. Measurements were analyzed statistically for differences among three obturation techniques. Results In the main canals, filled volume ratios were not significantly different among groups. Within isthmuses, the filled volume ratio for CLC was lower than in CW (P = 0.025) or OrthoMTA (P = 0.002). In isthmuses, the gutta-percha volume ratio in CLC was lower than in CW (P = 0.005), although the sealer volume ratio was higher than in CW (P = 0.049). Conclusion CLC demonstrated lower filling densities in isthmuses in the apical region than either CW or OrthoMTA. Orthograde MTA obturation showed comparable filling quality to gutta-percha with sealer.
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Affiliation(s)
- Soram Oh
- Department of Conservative Dentistry, Dental Research Institute, Seoul National University Dental Hospital, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Hiran Perinpanayagam
- Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, Canada
| | | | - Sang-Min Lim
- Department of Conservative Dentistry, Dental Research Institute, Seoul National University Dental Hospital, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Yeon-Jee Yoo
- Department of Conservative Dentistry, Dental Research Institute, Seoul National University Dental Hospital, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Seok Woo Chang
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Woocheol Lee
- Department of Conservative Dentistry, Dental Research Institute, Seoul National University Dental Hospital, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Seung-Ho Baek
- Department of Conservative Dentistry, Dental Research Institute, Seoul National University Dental Hospital, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Qiang Zhu
- Division of Endodontology, Department of Oral Health and Diagnostic Sciences, University of Connecticut Health Center, School of Dental Medicine, Farmington, CT, USA
| | - Kee Yeon Kum
- Department of Conservative Dentistry, Dental Research Institute, Seoul National University Dental Hospital, Seoul National University School of Dentistry, Seoul, Republic of Korea
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Gambarini G, Piasecki L, Schianchi G, Di Nardo D, Miccoli G, Al Sudani D, Di Giorgio R, Testarelli L. In vitro evaluation of carrier based obturation technique: a CBCT study. ANNALI DI STOMATOLOGIA 2016; 7:11-5. [PMID: 27486506 PMCID: PMC4955918 DOI: 10.11138/ads/2016.7.1.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
AIM The goal of the study was to compare the ability of two different carrier based obturation (CBO) techniques to reach working length and fill in three-dimensions root canal systems, by using CBCT. MATERIALS AND METHODS Twenty-six extracted molars were scanned with CBCT and 40 curved canals were selected (between 30° and 90°) and divided in two similar groups (n=20). All canals were prepared up to size 25 taper .06 using nickel-titanium instrumentation. The canals in the Group SC were obturated using Soft-Core obturators (Kerr, Romulus, Mi, USA), while Group TH canals (n= 20) were obturated using Thermafil Endodontic Obturators (Tulsa Dental Products, Tulsa, OK, USA), strictly following manufacturers' instructions for use. The obturations were analyzed by means of CBCT to measure the distance from the apical limit of obturation to the apical foramen and the presence of voids inside root canals. RESULTS There was no significant difference between the two groups in the mean distance of the apical extent of the obturation (t test, p>0.05). Overfilling occurred in only 3 cases (2 in Group TH and 1 in Group SC). The percentages of voids in both groups were very low with no significant difference (Z test, p>0.05). CONCLUSIONS The two tested CBO techniques showed similar positive results in terms of performance, even if, after checking with verifiers, in most cases the size of the selected Soft-Core obturator was one size smaller than Thermafil.
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Affiliation(s)
- Gianluca Gambarini
- Department of Oral and Maxillo-Facial Sciences, “Sapienza” University of Rome, Italy
| | - Lucila Piasecki
- Department of Periodontics and Endodontics, University at Buffalo (NY), USA
| | - Giovanni Schianchi
- Department of Oral and Maxillo-Facial Sciences, “Sapienza” University of Rome, Italy
| | - Dario Di Nardo
- Department of Oral and Maxillo-Facial Sciences, “Sapienza” University of Rome, Italy
| | - Gabriele Miccoli
- Department of Oral and Maxillo-Facial Sciences, “Sapienza” University of Rome, Italy
| | - Dina Al Sudani
- Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Roberto Di Giorgio
- Department of Oral and Maxillo-Facial Sciences, “Sapienza” University of Rome, Italy
| | - Luca Testarelli
- Department of Oral and Maxillo-Facial Sciences, “Sapienza” University of Rome, Italy
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Mokhtari H, Rahimi S, Forough Reyhani M, Galledar S, Mokhtari Zonouzi HR. Comparison of Push-out Bond Strength of Gutta-percha to Root Canal Dentin in Single-cone and Cold Lateral Compaction Techniques with AH Plus Sealer in Mandibular Premolars. J Dent Res Dent Clin Dent Prospects 2015; 9:221-5. [PMID: 26889358 PMCID: PMC4753030 DOI: 10.15171/joddd.2015.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 07/26/2015] [Indexed: 12/05/2022] Open
Abstract
Background and aims. The single-cone technique has gained some popularity in some European countries. The aim of the present study was to compare the push-out bond strength of gutta-percha to root canal dentin with the single-cone and cold lateral compaction canal obturation techniques. Materials and methods. The root canals of 58 human mandibular premolars were prepared using modified crown-down technique with ProTaper rotary files up to #F3as a master apical file (MAF) and divided randomly into groups A and B based on canal obturation technique. In group A (n = 29) the root canals were obturated with single-cone technique with #F3(30/.09) ProTaper gutta-percha, which was matched with MAF in relation to diameter, taper and manufacturer; in group B (n = 29) the canals were obturated with gutta-percha using cold lateral compaction technique. In both groups AH plus sealer were used. After two weeks of incubation, three 2-mm slices were prepared at a distance of 2 mm from the coronal surface and push-out test was carried out. Data were analyzed with descriptive statistics using independent samples t-test. Results. There were statistically significant differences between two groups. The mean push-out bond strength was higher in group B (lateral compaction technique) compared to group A (single-cone technique; P < 0.05). Conclusion. Use of single-cone technique for obturation of root canals resulted in a lower bond strength compared to cold lateral compaction technique.
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Affiliation(s)
- Hadi Mokhtari
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Assistant Professor, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Rahimi
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Professor, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Forough Reyhani
- Assosiate Professor, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeedeh Galledar
- Post-graduate Student, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamid Reza Mokhtari Zonouzi
- Assistant Professor, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
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30
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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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31
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Freire LG, Iglecias EF, Cunha RS, dos Santos M, Gavini G. Micro–Computed Tomographic Evaluation of Hard Tissue Debris Removal after Different Irrigation Methods and Its Influence on the Filling of Curved Canals. J Endod 2015; 41:1660-6. [DOI: 10.1016/j.joen.2015.05.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 04/30/2015] [Accepted: 05/03/2015] [Indexed: 11/28/2022]
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32
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Fernández R, Restrepo JS, Aristizábal DC, Álvarez LG. Evaluation of the filling ability of artificial lateral canals using calcium silicate-based and epoxy resin-based endodontic sealers and two gutta-percha filling techniques. Int Endod J 2015; 49:365-73. [DOI: 10.1111/iej.12454] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 03/26/2015] [Indexed: 11/30/2022]
Affiliation(s)
- R. Fernández
- Department of Endodontics and Research Group in Basic and Clinical Sciences in Dentistry (CBO); School of Dentistry; CES University; Medellín Colombia
| | - J. S. Restrepo
- Department of Endodontics and Research Group in Basic and Clinical Sciences in Dentistry (CBO); School of Dentistry; CES University; Medellín Colombia
| | - D. C. Aristizábal
- Department of Endodontics and Research Group in Basic and Clinical Sciences in Dentistry (CBO); School of Dentistry; CES University; Medellín Colombia
| | - L. G. Álvarez
- Department of Operative Dentistry and Research Committee; School of Dentistry; CES University and University of Antioquia; Medellín Colombia
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Kierklo A, Tabor Z, Pawińska M, Jaworska M. A microcomputed tomography-based comparison of root canal filling quality following different instrumentation and obturation techniques. Med Princ Pract 2015; 24:84-91. [PMID: 25359228 PMCID: PMC5588182 DOI: 10.1159/000368307] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 09/11/2014] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE With a microcomputed tomography (microCT) imaging device, we aimed to quantitatively evaluate root canal fillings after commonly used endodontic procedures and also tested the suitability of microCT for this purpose. MATERIALS AND METHODS Eighty single roots were instrumented and obturated with gutta-percha and Tubli-Seal. They were divided into 4 groups of 20. The Hand groups were instrumented with hand files and filled with thermoplastic (Th) compaction and cold lateral (CL) condensation, i.e. Hand-Th and Hand-CL, respectively. The Rot groups, i.e. Rot-Th and Rot-CL, were instrumented with a rotary ProFile system and filled as above. The roots were scanned and 3-dimensional (3D) visualization was obtained. The number, size, percentage of volume and distribution of voids at the filling/dentine interface (i-voids) and voids surrounded by filling material (s-voids) were measured. RESULTS Canal fillings differed significantly with regard to the size of both types of voids and the average number of i-voids. All canals presented a low volume of voids. The highest percentage (0.69%) was found for i-voids in the Hand-CL group, while the lowest volume (0.11% for s-voids and 0.14% for i-voids) was in the Hand-Th canals. Apically, in the last 3 mm, i-voids were observed mainly in the Th groups, and s-voids occurred mostly in the coronal part of the canal filling in all cases. CONCLUSION MicroCT was a useful tool for 3D quantitative evaluations of these root canal fillings. None of the root canal instrumentation and filling methods ensured void-free obturation. CL condensation produced mainly i-voids. With Th compaction, internal s-voids were particularly common, but there were mainly i-voids in the apical part.
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Affiliation(s)
- Anna Kierklo
- Department of Dentistry Propaedeutics, Medical University of Bialystok, Bialystok, Poland
- *Assoc. Prof. Dr. Anna Kierklo, Department of Dentistry Propaedeutics, Medical University of Bialystok, ul. J. Waszyngtona 15A, PL–15-274 Bialystok (Poland), E-Mail
| | - Zbisław Tabor
- Department of Institute of Teleinformatics, Cracow University of Technology, Cracow, Poland
| | - Małgorzata Pawińska
- Department of Restorative Dentistry and Endodontics, Medical University of Bialystok, Bialystok, Poland
| | - Małgorzata Jaworska
- Department of Dentistry Propaedeutics, Medical University of Bialystok, Bialystok, Poland
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Li GH, Niu LN, Selem LC, Eid AA, Bergeron BE, Chen JH, Pashley DH, Tay FR. Quality of obturation achieved by an endodontic core-carrier system with crosslinked gutta-percha carrier in single-rooted canals. J Dent 2014; 42:1124-34. [PMID: 24769108 DOI: 10.1016/j.jdent.2014.04.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 04/12/2014] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES The present study examined the quality of obturation in root canals obturated by GuttaCore, a gutta-percha-based core-carrier system with a cross-linked thermoset gutta-percha carrier, by comparing the incidence of gaps and voids identified from similar canals obturated by cold lateral compaction or warm vertical compaction. METHODS Thirty single-rooted premolars with oval-shaped canals were shaped and cleaned, and obturated with one of the three obturation techniques (N=10): GuttaCore, warm vertical compaction or cold lateral compaction. Filled canals were scanned with micro-computed tomography (micro-CT); reconstructed images were analysed for the volumetric percentage of gaps and voids at three canal levels (0-4mm, 4-8mm and 8-12mm from working length). The roots were subsequently sectioned at the 4-mm, 8-mm and 12-mm levels for analyses of the percentage of interfacial gaps, and area percentage of interfacial and intracanal voids, using scanning electron microscopy (SEM) to examine negative replicas of root sections. Data were analysed with parametric or non-parametric statistical methods at α=0.05. RESULTS Both micro-CT and SEM data indicated that canals obturated with GuttaCore core-carriers had the lowest incidence of interfacial gaps and voids, although the results were not significantly different from canals obturated by warm vertical compaction. Both the GuttaCore and the warm vertical compaction groups, in turn, had significantly lower incidences of gaps and voids than the cold lateral compaction group. CONCLUSIONS Because of the similarity in obturation quality between GuttaCore and warm vertical compaction, practitioners may find the GuttaCore core-carrier technique a valuable alternative for obturation of oval-shaped canals. CLINICAL SIGNIFICANCE The quality of obturation achieved by GuttaCore in single-rooted canals is not significantly different from that achieved by warm vertical compaction.
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Affiliation(s)
- Guo-Hua Li
- Department of Stomatology, Fuzhou Dongfang Hospital, Fuzhou, China
| | - Li-Na Niu
- State Key Laboratory of Military Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Lisa C Selem
- Department of Endodontics, Georgia Regents University, Augusta, GA, USA
| | - Ashraf A Eid
- Department of Dental and Biomedical Material Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Brian E Bergeron
- Department of Endodontics, Georgia Regents University, Augusta, GA, USA
| | - Ji-Hua Chen
- State Key Laboratory of Military Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, China.
| | - David H Pashley
- Department of Oral Biology, Georgia Regents University, Augusta, GA, USA
| | - Franklin R Tay
- Department of Endodontics, Georgia Regents University, Augusta, GA, USA.
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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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36
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Fruchi LDC, Ordinola-Zapata R, Cavenago BC, Hungaro Duarte MA, Bueno CEDS, De Martin AS. Efficacy of reciprocating instruments for removing filling material in curved canals obturated with a single-cone technique: a micro-computed tomographic analysis. J Endod 2014; 40:1000-4. [PMID: 24935552 DOI: 10.1016/j.joen.2013.12.011] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 12/10/2013] [Accepted: 12/13/2013] [Indexed: 10/25/2022]
Abstract
INTRODUCTION The aim of this study was to evaluate the efficacy of nickel-titanium reciprocating instrument techniques and passive ultrasonic irrigation (PUI) for retreatment in curved canals and obturated with correspondent single cones. METHODS Twenty molars were selected with mesial-buccal canals with curvatures between 20° and 40°, and they were instrumented with a Reciproc R25 instrument (VDW, Munich, Germany) in a reciprocating motion and obturated with single cones and AH Plus sealer (Dentsply Maillefer, Ballaigues, Switzerland). The teeth were divided into 2 groups (n = 10) according to the instrument used for the removal of filling material: group 1: Reciproc R25 instrument and group 2: WaveOne Primary instrument (Dentsply Maillefer). The analysis of the remnant filling material was made through micro-computed tomographic imaging after the use of reciprocating instruments and again after the use of PUI with xylene. The effective time of retreatment was registered. RESULTS The filling material of the root canal was efficiently removed (P < .05) for both groups. The percentage of removal of filling materials was 93% for the Reciproc group and 92% for the WaveOne group. There were no statistical significant differences (P > .05) between the groups in relation to the removal of filling material ability and the time needed for the procedure. The effective time for the removal of filling material was 78.7 seconds and 89.5 seconds for the Reciproc and WaveOne groups, respectively. CONCLUSIONS It was concluded that both instruments efficiently but not completely removed the filling material from inside the root canals. The use of xylene with PUI increased the removal of filling material a little, but it was not statically significant.
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Affiliation(s)
- Lincoln de Campos Fruchi
- Postgraduate Program in Endodontics, São Leopoldo Mandic Dental Research Center, Campinas, São Paulo, Brazil.
| | - Ronald Ordinola-Zapata
- Department of Endodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | - Bruno Cavalini Cavenago
- Department of Endodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | | | | | - Alexandre Sigrist De Martin
- Postgraduate Program in Endodontics, São Leopoldo Mandic Dental Research Center, Campinas, São Paulo, Brazil
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37
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Rossetto DB, Fernandes SL, Cavenago BC, Duarte MAH, Ordinola-Zapata R, Andrade FBD. Influence of the Method in Root Canal Filling Using Active Lateral Compaction Techniques. Braz Dent J 2014; 25:295-301. [DOI: 10.1590/0103-6440201302224] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Accepted: 08/19/2014] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to evaluate, by stereomicroscopy and confocal laser microscopy, the influence of different lateral compaction methods for the obturation quality, as well as the time spent for the procedure. Thirty root canals of freshly extracted single-rooted human teeth were prepared with the ProTaper system up to F5 instrument and filled with gutta-percha and AH Plus sealer by the lateral compaction technique. The teeth were divided into 3 groups (n=10) in accordance with the method used for the lateral compaction, as follows: Manual, Mechanical and Ultrasonic. The sealers were stained with rhodamine B dye in a proportion of 0.1% per gram in weight to allow for the analysis under a confocal microscope. During the root filling procedure, the time spent was recorded with a stopwatch. The specimens were stored at 37 °C for 48 h, and then sectioned at 2, 4 and 6 mm from the apex. The percentage of gutta-percha, sealer and void areas were evaluated using a stereomicroscope and sealer penetration perimeter by confocal laser microscope. Statistical analyses were performed using the Kruskall-Wallis and Dunn tests (p<0.05). The mechanical method required a shorter time for the lateral compaction than the manual method (p<0.05). There were no significant differences (p>0.05) for the perimeter of the dentin with sealer penetration among all groups. The mechanical method showed a higher (p<0.05) percentage of gutta-percha and less sealer at the 4 mm section in comparison with the manual method. The ultrasonic group showed intermediate values. The void areas found in the root filling were similar (p>0.05) between the three methods. In conclusion, the fastest lateral compaction was achieved with the mechanical method, and all the methods showed void areas in the root filling.
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Schäfer E, Köster M, Bürklein S. Percentage of gutta-percha-filled areas in canals instrumented with nickel-titanium systems and obturated with matching single cones. J Endod 2013; 39:924-8. [PMID: 23791265 DOI: 10.1016/j.joen.2013.04.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 03/05/2013] [Accepted: 04/03/2013] [Indexed: 10/26/2022]
Abstract
INTRODUCTION The purpose of this study was to compare different single-cone obturation techniques in terms of the percentage of gutta-percha-filled areas (PGFA), sealer-filled areas (PSFA), and voids. METHODS Sixty extracted mandibular incisors with straight canals were allocated into 6 groups: (A) FlexMaster, (B) Mtwo, (C) ProTaper, (D) Reciproc, (E) WaveOne, and (F) control. In groups A-E, obturation was performed by using matching single-cone gutta-percha. In group F (control), manual instrumentation and obturation were performed by using cold lateral compaction with standardized gutta-percha cones. The teeth were sectioned at 2, 4, 6, and 8 mm from the apex. The total area of each canal segment was measured, and the areas were converted to PGFA, PSFA, and percentage of voids. Data were subjected to the Kruskal-Wallis and post hoc Dunn test. RESULTS At the 2-mm level, group B produced significantly higher PGFA than all other groups, whereas group B produced significantly higher PGFA than groups C, D, and E (P < .05). At the 4-mm level, groups A and B produced significantly higher PGFA than all other groups, whereas group F produced significantly higher PGFA and lower PSFA than groups C, D, and E (P < .05). At the 6-mm level, group F produced significantly higher PGFA and lower PSFA (P < .05) than all other groups, whereas groups A and B produced significantly higher PGFA and lower PSFA than groups C, D, and E (P < .05). At the 8-mm level, group F produced significantly higher PGFA and lower PSFA (P < .05) than all other groups. CONCLUSIONS Under the conditions of this study, lateral compaction and single-cone techniques that used constant tapered gutta-percha (FlexMaster, Mtwo) produced higher PGFA at the apical levels than variable tapered single-cone gutta-percha (ProTaper, Reciproc, WaveOne).
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Affiliation(s)
- Edgar Schäfer
- Central Interdisciplinary Ambulance in the School of Dentistry, University of Münster, Münster, Germany.
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Rodrigues A, Bonetti-Filho I, Faria G, Andolfatto C, Camargo Vilella Berbert FL, Kuga MC. Percentage of gutta-percha in mesial canals of mandibular molars obturated by lateral compaction or single cone techniques. Microsc Res Tech 2012; 75:1229-32. [PMID: 22495975 DOI: 10.1002/jemt.22053] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 03/15/2012] [Indexed: 11/11/2022]
Abstract
The aim of this study was to compare the percentage of gutta-percha (PGP) in mesial root canals of mandibular molars obturated with LC (Lateral Compaction) or SC (Single Cone) ProTaper Universal System techniques at different levels of the root. Mesial root canals of 20 human permanent molars with similar anatomical characteristics were instrumented using the ProTaper Universal rotary system technique until the F2 instrument, with 20 canals filled by SC ProTaper Universal technique and 20 canals by the LC technique. The mesial roots were sectioned transversely to 3, 5, and 7 mm from the root apex. Digital images of specimens were obtained at MIC-D digital microscope in increases of 30 to 35X. The gutta-percha area was measured using ImageTool software. Data were analyzed using two-way ANOVA and Bonferroni test (α = 0.05). The SC technique provided greater PGP than the LC technique in the apical third (3 mm) (P < 0.001). In the other thirds (5 and 7 mm) there was no statistical difference between the two techniques regarding the PGP (P > 0.05). There was no statistically significant difference between thirds of the root canal for both techniques (P > 0.05). It was concluded that SC technique provided greater PGP than the LC technique in the apical third of mesial root canals of mandibular molars. There was no difference between the two techniques regarding the PGP in the cervical and middle thirds.
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Affiliation(s)
- Amanda Rodrigues
- Department of Restorative Dentistry, Araraquara Dental School, UNESP-Univ Estadual Paulista, Araraquara, SP, Brazil
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Robberecht L, Colard T, Claisse-Crinquette A. Qualitative evaluation of two endodontic obturation techniques: tapered single-cone method versus warm vertical condensation and injection system An in vitro study. J Oral Sci 2012; 54:99-104. [DOI: 10.2334/josnusd.54.99] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Marciano MA, Guimarães BM, Ordinola-Zapata R, Bramante CM, Cavenago BC, Garcia RB, Bernardineli N, Andrade FB, Moraes IG, Duarte MA. Physical Properties and Interfacial Adaptation of Three Epoxy Resin–based Sealers. J Endod 2011; 37:1417-21. [DOI: 10.1016/j.joen.2011.06.023] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Revised: 06/22/2011] [Accepted: 06/23/2011] [Indexed: 11/15/2022]
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