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Ashi T, Kharouf N, Etienne O, Cournault B, Klienkoff P, Gribova V, Haikel Y. Effectiveness of Sectioning Method and Filling Materials on Roughness and Cell Attachments in Root Resection Procedure. Eur J Dent 2024. [PMID: 39029907 DOI: 10.1055/s-0044-1788319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2024] Open
Abstract
OBJECTIVES The purpose of the present study was to investigate the created roughness and cell attachment of intact teeth (C), obturated teeth with bioceramic (BR), or epoxy resin (AH) after root resection using piezoelectric ultrasonic and carbide bur. MATERIALS AND METHODS Three groups of first mandibular premolars were used in the present study: control group (without any preparation or obturation) (C); second group was obturated with an epoxy resin sealer (AH, AH Plus Jet); and finally, the third one was obturated with a bioceramic sealer (BR, BioRoot RCS). All teeth were incubated for 4 months at 37°C. After that, the samples were sectioned using tungsten carbide bur or piezoelectric ultrasonic. Roughness and then cell attachment of periodontal ligament cells on the sectioned surfaces were investigated by profilometer and confocal microscope, respectively. STATISTICAL ANALYSIS Data were statistically analyzed using one-way analysis of variance. RESULTS After root resection, no significant difference was found between the roughness among the three groups sectioned using the piezoelectric technique (p > 0.05). In contrast, concerning the sectioned samples by burs, C demonstrated a rougher surface compared with BR (p < 0.05). There was a significant higher cell attachment in BR compared with AH in the piezoelectric groups (p = 0.047), while no statistically significant difference was found between the groups sectioned with bur (p > 0.05). CONCLUSION Dentists are now focused on the use of calcium silicate-based sealers due to their bioactivity. The present study advises dentists to use bioceramic sealer which could improve the dentin characteristics which ameliorate the cell attachment.
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Affiliation(s)
- Tarek Ashi
- Department of Biomaterials and Bioengineering, University of Strasbourg, INSERM UMR_S 1121, Strasbourg, France
| | - Naji Kharouf
- Department of Biomaterials and Bioengineering, University of Strasbourg, INSERM UMR_S 1121, Strasbourg, France
- Department of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, Strasbourg, France
| | - Olivier Etienne
- Department of Biomaterials and Bioengineering, University of Strasbourg, INSERM UMR_S 1121, Strasbourg, France
- Department of Prosthodontics, Faculty of Dental Medicine, University of Strasbourg, Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, Strasbourg, France
| | - Bérangère Cournault
- Department of Biomaterials and Bioengineering, University of Strasbourg, INSERM UMR_S 1121, Strasbourg, France
- Department of Prosthodontics, Faculty of Dental Medicine, University of Strasbourg, Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, Strasbourg, France
| | - Pierre Klienkoff
- Department of Biomaterials and Bioengineering, University of Strasbourg, INSERM UMR_S 1121, Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, Strasbourg, France
| | - Varvara Gribova
- Department of Biomaterials and Bioengineering, University of Strasbourg, INSERM UMR_S 1121, Strasbourg, France
| | - Youssef Haikel
- Department of Biomaterials and Bioengineering, University of Strasbourg, INSERM UMR_S 1121, Strasbourg, France
- Department of Endodontics and Conservative Dentistry, Faculty of Dental Medicine, University of Strasbourg, Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, Strasbourg, France
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Damor PR, Sharma S, Kumar V, Chawla A, Logani A. Topography of root-end surface after freehand and three-dimensional-guided apicoectomy procedure: A scanning electron microscope study. JOURNAL OF CONSERVATIVE DENTISTRY AND ENDODONTICS 2024; 27:424-428. [PMID: 38779202 PMCID: PMC11108421 DOI: 10.4103/jcde.jcde_77_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/03/2024] [Accepted: 03/06/2024] [Indexed: 05/25/2024]
Abstract
Background Dentinal microcracks formed during apical resection may lead to increased susceptibility to root fracture and improper sealing of apical preparation that may negatively influence the outcome of endodontic microsurgery. Aims This study was performed to analyze the root-end surface for dentinal microcracks using a scanning electron microscope (SEM) after resection with high-speed bur and trephine drill. Materials and Methods Thirty extracted single-rooted maxillary premolar teeth were selected and randomly distributed into two groups (n = 15). Working length was established using a #15 K-type file. Canals were prepared with a rotary Ni-Ti system to size 30/0.06 using endomotor, irrigated with 3% sodium hypochlorite, dried with paper points, and obturated with gutta-percha cones using a single-cone technique. All samples were mounted on preformed molds and poured using a mixture of sawdust and gypsum. In Group A; tungsten carbide bur was used to perform a freehand apicoectomy. In Group B; a trephine drill was used with a three-dimensional guide to perform 3 mm of root resection. Apicoectomy was performed in both groups under a dental operating microscope. Resected root ends were inspected for microcracks using SEM. The Shapiro-Wilk and Mann-Whitney U-test were used for statistical analysis. Results Microcracks were observed in all samples in both study groups. Trephine drill produced more microcracks on the resected root surface compared to the use of high-speed tungsten carbide bur with a statistically significant difference (P < 0.05). Conclusions The trephine drill used during targeted endodontic microsurgery produced more microcracks on the resected root dentine surface compared to the high-speed tungsten carbide bur used during freehand apicoectomy.
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Affiliation(s)
- Pradipkumar R. Damor
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Sidhartha Sharma
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Vijay Kumar
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Amrita Chawla
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Ajay Logani
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
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Ekici Ö, Aslantaş K, Kanık Ö, Keleş A. Evaluation of surface roughness after root resection: An optical profilometer study. Microsc Res Tech 2021; 84:828-836. [PMID: 33491839 DOI: 10.1002/jemt.23714] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/07/2021] [Accepted: 01/10/2021] [Indexed: 11/06/2022]
Abstract
The aim of this study was to evaluate the roughness of the apical surface after apical resection performed by six different methods with an optical profilometer. Sixty human single root premolar teeth were used in this in vitro study. After root canal preparation, root canals were filled with gutta-percha and AH Plus root canal sealers by lateral condensation technique. The teeth were randomly divided into six groups according to the apical resection method: steel fissure bur, tungsten carbide fissure bur, Lindeman bur, diamond fissure bur, laser, and ultrasonic surgical piezo with a diamond tip. The root ends were resected 3 mm away from the root apex and at a 90° angle. The time required for apicectomy was recorded for each group. After apical resection, the root surfaces were analyzed by an optical profilometer. The Kruskal-Wallis method was used to analyze the differences between groups. The significance level was set at 5%. The roughest surfaces were obtained by laser (25.54 ± 9.01 μm) and Lindeman bur (17.35 ± 6.03 μm), respectively. The longest mean resection times were recorded in piezosurgery and laser surgery (57 ± 14.39 s and 50.9 ± 16.86 s), respectively. Although the diamond-tipped piezo surgical cutting time is long, it has the best results in terms of surface roughness (5.50 ± 1.73 μm). The optical profilometer is a more convenient tool for evaluating the surface after apical surgery, as it provides an opportunity to evaluate objectively with both visual and numerical data.
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Affiliation(s)
- Ömer Ekici
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
| | - Kubilay Aslantaş
- Department of Mechanical Engineering, Faculty of Technology, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Özgür Kanık
- Department of Restorative Dentistry, Faculty of Dentistry, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
| | - Ali Keleş
- Department of Endodontics, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey
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Monteiro JB, Dal Piva AMDO, Tribst JPM, Borges ALS, Tango RN. The Effect of Resection Angle on Stress Distribution after Root-End Surgery. IRANIAN ENDODONTIC JOURNAL 2018; 13:188-194. [PMID: 29707013 PMCID: PMC5911292 DOI: 10.22037/iej.v13i2.19089] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Introduction: This study aimed to investigate the influence of the resection angle on the stress distribution of retrograde endodontic treated maxillary incisors under oblique-load application. Methods and Materials: A maxillary central incisor which was endodontically treated and restored with a fiber glass post was obtained in a 3-dimensional numerical model and distributed into three groups according to type of resection: control; restored with fiber post without retrograde obturation, R45 and R90 with 45º and 90º resection from tooth axial axis, respectively and restored with Fuji II LC (GC America). The numerical models received a 45º occlusal load of 200 N/cm2 on the middle of lingual surface. All materials and structures were considered linear elastic, homogeneous and isotropic. Numerical models were plotted and meshed with isoparametric elements, and the results were analyzed using maximum principal stress (MPS). Results: MPS showed greater stress values in the bone tissue for control group than the other groups. Groups with apicectomy showed acceptable stress distribution on the fiber post, cement layer and root dentin, presenting more improved values than control group. Conclusion: Apicectomy at 90º promotes more homogeneity on stress distribution on the fiber post, cement layer and root dentin, which suggests less probability of failure. However, due to its facility and stress distribution also being better than control group, apicectomy at 45° could be a good choice for clinicians.
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Affiliation(s)
- Jaiane Bandoli Monteiro
- Department of Dental Materials and Prosthodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos, SP, Brazil
| | - Amanda Maria de Oliveira Dal Piva
- Department of Dental Materials and Prosthodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos, SP, Brazil
| | - João Paulo Mendes Tribst
- Department of Dental Materials and Prosthodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos, SP, Brazil
| | - Alexandre Luiz Souto Borges
- Department of Dental Materials and Prosthodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos, SP, Brazil
| | - Rubens Nisie Tango
- Department of Dental Materials and Prosthodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos, SP, Brazil
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Canali LCF, Duque JA, Vivan RR, Bramante CM, Só MVR, Duarte MAH. Comparison of efficiency of the retreatment procedure between Wave One Gold and Wave One systems by Micro-CT and confocal microscopy: an in vitro study. Clin Oral Investig 2018; 23:337-343. [PMID: 29675760 DOI: 10.1007/s00784-018-2441-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/12/2018] [Indexed: 10/17/2022]
Abstract
INTRODUCTION To compare, by Micro-CT and confocal laser scanning microscopy (CLSM), the ability of the Wave One Gold and Wave One systems to remove filling material from mesial canals of mandibular molars, effective time spent; quantity of extruded material, and percentage of sealer in the dentinal tubules after retreatment and re-obturation procedures. MATERIALS AND METHODS Ten first mandibular molars (n = 20 mesial canals) were prepared and filled with gutta-percha and Endofill sealer mixed with Rhodamine B dye using the single cone technique. After 7 days, the canals were scanned using a high-definition micro-computer tomography with 19-mm voxel size and divided into two groups (n = 10) according to the system used in retreatment: group 1, Wave One (WO), and group 2, Wave One Gold (WG). After removing filling material with the primary file of each system, the WO 40/.08 and WG 35/.06 files were used. After using each file, a new scanning was performed and the residual filling material and extruded filling material were measured. The effective time spent to remove the canal filling was measured after each instrument. After retreatment, the teeth were re-obturated with gutta-percha and AH Plus sealer mixed with fluorescein dye using the single-cone technique. The roots were sectioned at 2, 4 and 6 mm and analysed by CLSM to measure the percentage of remaining sealer and the sealer of the new root canal filling. The data were statistically compared (P < 0.05). RESULTS Both systems presented a similar volume of filling material remaining in the canals after the use of the two instruments, similar residual and new material in the dentinal tubules, and similar extrusion of material (P > 0.05). When using WO 25, the operator spent significantly less effective time than when using WG 25 (P < 0.05); however, use of WG 35 and WO 40 required a similar time to remove filling material from the canals (P > 0.05). CONCLUSIONS Neither of the two systems removed all the filling material. The WG system presented similar ability in removing filling and extruded material in comparison with WO system. The effective time spent was shorter for WO 25 than for WG 25. CLINICAL RELEVANCE Wave One Gold can be an alternative to perform retreatment considering that in comparison with Wave One, there was no difference in filling material removal capacity and extruded materials. There was only difference in the effective time spent, in which the operator spent more time with WG 25 than with WO 25.
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Affiliation(s)
- Lyz Cristina Furquim Canali
- Department of Restorative Dentistry, Dental Materials and Endodontics, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisola no. 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Jussaro Alves Duque
- Department of Restorative Dentistry, Dental Materials and Endodontics, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisola no. 9-75, Bauru, São Paulo, 17012-901, Brazil.
| | - Rodrigo Ricci Vivan
- Department of Restorative Dentistry, Dental Materials and Endodontics, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisola no. 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Clovis Monteiro Bramante
- Department of Restorative Dentistry, Dental Materials and Endodontics, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisola no. 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Marcus Vinícius Reis Só
- Department of Endodontics, University Federal of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Marco Antonio Hungaro Duarte
- Department of Restorative Dentistry, Dental Materials and Endodontics, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisola no. 9-75, Bauru, São Paulo, 17012-901, Brazil
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