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Cecagno FL, De Martin AS, Fontana CE, Cavenago BC, Nascimento WM, Limoeiro AGDS, Bueno CEDS. Evaluation of the Ability of 3 Reciprocating Instruments to Remove Obturation Material: A Micro-Computed Tomography Study. J Endod 2024; 50:376-380. [PMID: 38147908 DOI: 10.1016/j.joen.2023.12.004] [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: 10/16/2023] [Revised: 12/11/2023] [Accepted: 12/18/2023] [Indexed: 12/28/2023]
Abstract
INTRODUCTION The purpose of this study was to evaluate the ability of the Reciproc, Reciproc Blue, and WaveOne Gold systems to remove filling material during endodontic retreatment of extracted human mandibular premolars. METHODS Thirty-nine teeth were instrumented with the Protaper Universal System to the F3 file and filled with the Tagger hybrid technique using an F3 gutta-percha cone and AH Plus cement. At the end of this period, the teeth were scanned with micro-computed tomography before and after removal of the filling material from the root canals. The teeth were divided into 3 groups (n = 13) based on the apical volume, depending on the systems used to remove the filling material. Group GR: Reciproc 40/.06; Group GRB: Reciproc Blue 40/.06; and Group GWG: WaveOne Gold 35/.06. The results were statistically analyzed using the tests of Kruskal-Wallis, Duncan, and analysis of variance at a significance level of 5%. RESULTS The results showed that there were no significant differences between the amounts of filling material removed, either for the apical and middle regions alone or in the overall evaluation for the 3 groups (P = .97). The time evaluation statistically showed that the GR and GWG groups required less time to clean the root canals than the GRB group. CONCLUSIONS Reciproc R40 files and WaveOne Gold Medium files required less time for endodontic treatment than Reciproc Blue R40 files. There was no difference in the ability to remove obturation material between the 3 instruments. No instrument was able to completely remove the filling material from the root canals.
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Affiliation(s)
- Fábio Luiz Cecagno
- Departament of Endodontics, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Alexandre Sigrist De Martin
- Departament of Endodontics, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Carlos Eduardo Fontana
- PUC Campinas, Center of Life Sciences, Programa de pós-graduação em Ciências da Saúde, Campinas, São Paulo, Brazil
| | | | - Wayne Martins Nascimento
- Departament of Endodontics, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Ana Grasiela da Silva Limoeiro
- Departament of Endodontics, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Carlos Eduardo da Silveira Bueno
- Departament of Endodontics, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil.
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Timponi Goes Cruz A, Antoniw Klemz A, Ribeiro Rosa EA, Soares Grecca F, Mattos B, Piasecki L, Machado R, Ignácio SA, da Silva Neto UX. Cleaning and disinfection of the root canal system provided by four active supplementary irrigation methods. Sci Rep 2024; 14:3795. [PMID: 38361036 PMCID: PMC10869831 DOI: 10.1038/s41598-024-53375-8] [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: 11/08/2023] [Accepted: 01/31/2024] [Indexed: 02/17/2024] Open
Abstract
This in vitro study evaluated the bacterial reduction provided by the EndoActivator (EA), Easy Clean (EC), passive ultrasonic irrigation (PUI), and XP-Endo Finisher. Eight-four mesial roots of mandibular first molars were instrumented, inoculated with Enterococcus faecalis, and divided into four groups (n. 20). Bacterial reduction in the main canals and dentinal tubules were respectively determined by MTT assays and Live/Dead BackLight technique through confocal laser scanning microscopy (CLSM) at 50, 100, and 150 µm in-depth (n. 10 per group). Statistical analyses were conducted following a significance level of 95% (P < 0.05). A significant statistical difference was just identified between XPF and EC in the main canals. In the dentinal tubules from the main root canals, at 100 and 150 µm in-depths, significant statistical differences were only observed between XPF and EC (P = 0.027) for the former and between XPF and EC (P = 0.011) and XPF and PUI (P = 0.021) for the latter. In the dentinal tubules from the isthmus, at 100 µm in-depth, statistically relevant differences did occur between XPF and EC (P = 0.038) and EC and EA (P = 0.029). At 150 µm in-depth, these differences were only significant by comparing XPF and PUI (P = 0.025) and XPF and EC (P = 0.036). Although no irrigation method could thoroughly disinfect the RCS, bacterial reduction indexes were generally better after using XPF.
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Affiliation(s)
- Alessandra Timponi Goes Cruz
- Department of Endodontics, College of Dentistry, Pontifical Catholic University of Paraná-PUC/PR, Curitiba, Paraná, Brazil
| | - Adriane Antoniw Klemz
- Department of Endodontics, College of Dentistry, Pontifical Catholic University of Paraná-PUC/PR, Curitiba, Paraná, Brazil
| | - Edvaldo Antônio Ribeiro Rosa
- Department of Biosciences, College of Dentistry, Pontifical Catholic University of Paraná-PUC/PR, Curitiba, Paraná, Brazil
| | - Fabiana Soares Grecca
- Department of Endodontics, College of Dentistry, Federal University of Rio Grande do Sul-UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Bianca Mattos
- Department of Endodontics, College of Dentistry, Pontifical Catholic University of Paraná-PUC/PR, Curitiba, Paraná, Brazil
| | - Lucila Piasecki
- Department of Periodontics & Endodontics, College of Dentistry, University at Buffalo, Buffalo, NY, USA
| | - Ricardo Machado
- Clinical practice limited to Endodontics, Navegantes, Santa Catarina, Brazil.
| | - Sérgio Aparecido Ignácio
- Department of Statistics, College of Dentistry, Pontifical Catholic University of Paraná-PUC/PR, Curitiba, Paraná, Brazil
| | - Ulisses Xavier da Silva Neto
- Department of Endodontics, College of Dentistry, Pontifical Catholic University of Paraná-PUC/PR, Curitiba, Paraná, Brazil
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Chhabra N, Parolia A. Effect of Various Acid Solutions as an Aid in Removing the OrthoMTA-Based Root Canal Filling. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4535. [PMID: 37444849 DOI: 10.3390/ma16134535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/05/2023] [Accepted: 06/05/2023] [Indexed: 07/15/2023]
Abstract
The objectives of this study were to compare the effects of various acid solutions combined with ultrasonics as an aid to remove mineral trioxide aggregate (MTA)-based root canal filling and to assess their effect on the surface topography and microhardness of root canal dentin. MATERIALS AND METHOD Fifty human permanent single rooted and single canaled freshly extracted teeth were decoronated and sectioned apically to prepare the middle third of root sections of 5 mm length. The canals were prepared in a step-back manner. OrthoMTA was packed throughout the prepared canals. These root sections were incubated for one week and subsequently randomly allocated to five groups (n = 10) according to the OrthoMTA removal method: No treatment (NT); 5% glycolic acid + ultrasonics (5% GA+U); 10% glycolic acid + ultrasonics (10% GA+U); 10% citric acid + ultrasonics (10% CA+U); Distilled water + ultrasonics (DW+U). A 1 mm deep well was created within the coronal end of the set OrthoMTA. Wells were filled with each respective test solution and left for 5 min. Thereafter, further removal of OrthoMTA used a specific ultrasonic tip. Finally, the canals were flushed using 1 mL of the respective test solutions and activated with a Controlled Memory ultrasonic tip for two cycles of 20 s each followed by flushing with 1 mL of distilled water and paper point drying of the canals. Then, specimens were longitudinally split into two halves and examined under a scanning electron microscope (1000×) to assess the residual OrthoMTA and surface topography of root canal dentin. The Vickers surface microhardness of treated radicular dentin was measured using the HMV-2 microhardness tester. RESULT Data were analysed using one-way ANOVA followed by Tukey's post hoc test. Significant differences for residual OrthoMTA were observed between (10% GA+U) with (5% GA+U), (10% CA+U), (DW+U) and (NT) (p value < 0.01). In the context of microhardness, (5% GA+U) and (10% GA+U) showed statistically significant difference compared to (NT), (10% CA+U) and (DW+U) (p value < 0.01). CONCLUSION 10% GA+U was superior to other tested groups in removing OrthoMTA, but it substantially reduced dentin microhardness.
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Affiliation(s)
- Naveen Chhabra
- Restorative Dentistry Division, School of Dentistry, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia
| | - Abhishek Parolia
- Restorative Dentistry Division, School of Dentistry, International Medical University, Bukit Jalil, Kuala Lumpur 57000, Malaysia
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Jamleh A, Nassar M, Alfadley A, Alanazi A, Alotiabi H, Alghilan M, Alfouzan K. Retreatment of oval-shaped root canals filled with TotalFill bioceramic or AH plus sealer. Sci Rep 2023; 13:9357. [PMID: 37291272 PMCID: PMC10250336 DOI: 10.1038/s41598-023-36608-0] [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: 02/16/2023] [Accepted: 06/07/2023] [Indexed: 06/10/2023] Open
Abstract
This study investigated retreatment of oval canals filled with gutta-percha and different sealers using WaveOne Gold (WOG). Single oval canals were prepared to size 30, 0.04 and obturated with gutta percha and AH Plus (AHP) or TotalFill bioceramic (TFBC) sealer. After 6-month incubation, the canals were retreated with WOG Primary (25, 0.07) under simulated body temperature, and the developed load and torque were simultaneously measured. The time and regaining the apical patency were checked. Micro-computed tomography scanning was performed to calculate the remaining obturating materials. An independent t-test and chi-square test were performed at a 95% confidence level. A shorter retreatment time was needed in TFBC than in AHP (P = 0.003). However, a higher maximum apical load was reported with AHP (P = 0.000). Meanwhile, comparable maximum coronal load and maximum torque values were observed. Apical patency was regained in all TFBC roots and only 75% of the AHP samples (P = 0.217). The remaining obturating materials were comparable in TFBC (13.02 ± 8.12%) and AHP (10.11 ± 8.46%) (P = 0.398). WOG was able to remove 89.89% and 86.98% of obturating materials in TFBC and AHP, respectively. The TFBC presented lower apical loads and faster retreatment compared to AHP.
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Affiliation(s)
- Ahmed Jamleh
- Restorative and Prosthetic Dental Sciences, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, National Guard Health Affairs, P.O. Box 22490, 11426, Riyadh, Kingdom of Saudi Arabia.
- King Abdullah International Medical Research Centre, National Guard Health Affairs, Riyadh, Kingdom of Saudi Arabia.
| | - Mohannad Nassar
- Department of Preventive and Restorative Dentistry, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Abdulmohsen Alfadley
- Restorative and Prosthetic Dental Sciences, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, National Guard Health Affairs, P.O. Box 22490, 11426, Riyadh, Kingdom of Saudi Arabia
- King Abdullah International Medical Research Centre, National Guard Health Affairs, Riyadh, Kingdom of Saudi Arabia
| | - Azhar Alanazi
- Restorative and Prosthetic Dental Sciences, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, National Guard Health Affairs, P.O. Box 22490, 11426, Riyadh, Kingdom of Saudi Arabia
- Endodontic Division, Dental Services, Central Region, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Hadeel Alotiabi
- Restorative and Prosthetic Dental Sciences, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, National Guard Health Affairs, P.O. Box 22490, 11426, Riyadh, Kingdom of Saudi Arabia
- King Abdullah International Medical Research Centre, National Guard Health Affairs, Riyadh, Kingdom of Saudi Arabia
| | - Maryam Alghilan
- Restorative and Prosthetic Dental Sciences, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, National Guard Health Affairs, P.O. Box 22490, 11426, Riyadh, Kingdom of Saudi Arabia
- King Abdullah International Medical Research Centre, National Guard Health Affairs, Riyadh, Kingdom of Saudi Arabia
| | - Khalid Alfouzan
- Restorative and Prosthetic Dental Sciences, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, National Guard Health Affairs, P.O. Box 22490, 11426, Riyadh, Kingdom of Saudi Arabia
- King Abdullah International Medical Research Centre, National Guard Health Affairs, Riyadh, Kingdom of Saudi Arabia
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