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Jung MK, Jeon MJ, Kim JH, Son SA, Park JK, Seo DG. Comparison of the stress distribution in base materials and thicknesses in composite resin restorations. Heliyon 2024; 10:e25040. [PMID: 38333812 PMCID: PMC10850536 DOI: 10.1016/j.heliyon.2024.e25040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 02/10/2024] Open
Abstract
Resin-based composite materials are commonly used for restorations, but their dimensional changes during the polymerization could cause various clinical problems. This study evaluated the influence of a base of different materials and thicknesses on the stress magnitude and distribution in a second maxillary premolar with an MOD resin composite restoration using three-dimensional finite element analysis. A sound tooth without cavity was considered as the control group (ST), and another group was restored with composite resin without applying a base material in a MOD cavity (CR). The other three groups were restored with composite resin along with the following base materials: glass ionomer cement, low-viscosity resin, and tricalcium silicate, respectively (CR-GIC, CR-LR, and CR-TS). These three groups were further divided into two subgroups according to the thickness of the base layer: thin (0.5 mm) and thick (1.0 mm). The stress distribution was compared using the maximum principal stress after polymerization shrinkage and vertical loading with 600 N on the occlusal surface. Group ST showed the lowest stress value, and its stress propagation was confined to outer enamel surfaces only. Group CR demonstrated the highest stress distribution in the tooth-restoration interface with increased failure risk on marginal areas. The thin and thick subgroups of the three groups with a base layer had lower stress levels than Group CR. The base materials reduced the marginal stress caused by polymerization shrinkage of composite resin in MOD cavities. Different base materials and thicknesses did not affect the stress distribution.
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Affiliation(s)
- Min-Kwan Jung
- Department of Conservative Dentistry, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Mi-Jeong Jeon
- Department of Conservative Dentistry, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
- Department of Conservative Dentistry, College of Dentistry, Gangnam Severance Hospital, Yonsei University, Seoul, Republic of Korea
| | - Jae-Hoon Kim
- Department of Dental Education, Dental Research Institute, Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
| | - Sung-Ae Son
- Department of Conservative Dentistry, Dental Research Institute, Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
| | - Jeong-Kil Park
- Department of Conservative Dentistry, Dental Research Institute, Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
| | - Deog-Gyu Seo
- Department of Conservative Dentistry, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
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Agarwal NS, Singh S, Chandrasekhar P, Kulkarni G, Podar R. Conservative Nonsurgical Approach for Management of a Case of Type II Dens in Dente. Case Rep Dent 2024; 2024:8843758. [PMID: 38204753 PMCID: PMC10776186 DOI: 10.1155/2024/8843758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/07/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
Dens in dente is a developmental dental anomaly which poses a challenge for the endodontist due to its complex pulpal anatomy. In this case report, a class 2 dens in dente was managed nonsurgically. A 32-year-old female reported with a palatal swelling and pain in the upper front region of the jaw. On examination, #7 was observed to be malformed and showed a negative pulpal sensibility test. Radiographic and CBCT analysis revealed Ohler's type 2 dens in dente with a periapical radiolucency. In the first visit, invagination was removed using diamond-coated ultrasonic tips, the canal was minimally instrumented, and premixed calcium hydroxide was injected in the canal which accidentally extruded periapically. After two weeks, a draining sinus was observed on the palatal side which when traced, lead to #7. Intracanal dressing was replaced with a mix of powdered calcium hydroxide and saline. The dressing was replaced every two weeks, and radiographs were taken, which revealed the resorption of extruded calcium hydroxide and reduction in the osseous defect. Biodentine was used to obturate the entire canal space. Subsequent follow-up radiographs till 24 months showed significant periapical healing and resorption of extruded calcium hydroxide.
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Affiliation(s)
- Navin S. Agarwal
- Department of Conservative Dentistry and Endodontics, TPCT's Terna Dental College, Nerul, Navi Mumbai, India
| | - Shishir Singh
- Department of Conservative Dentistry and Endodontics, TPCT's Terna Dental College, Nerul, Navi Mumbai, India
| | - Padmini Chandrasekhar
- Department of Conservative Dentistry and Endodontics, TPCT's Terna Dental College, Nerul, Navi Mumbai, India
| | - Gaurav Kulkarni
- Department of Conservative Dentistry and Endodontics, TPCT's Terna Dental College, Nerul, Navi Mumbai, India
| | - Rajesh Podar
- Department of Conservative Dentistry and Endodontics, TPCT's Terna Dental College, Nerul, Navi Mumbai, India
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Çoban Öksüzer M, Şanal Çıkman A. Evaluation of Fracture Strength after Repair of Cervical External Resorption Cavities with Different Materials. J Endod 2024; 50:85-95. [PMID: 37879603 DOI: 10.1016/j.joen.2023.10.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/07/2023] [Accepted: 10/16/2023] [Indexed: 10/27/2023]
Abstract
INTRODUCTION The aim was to evaluate the stress distributions on dentin and repair materials caused by static force applied to teeth, with cervical external root resorption (CER) after repair with different materials using finite element analysis. METHODS This study was performed with the 3-dimensional finite element analysis method. Access cavity, root canal cavity dimensions, and supporting tissues other than cementum were modeled in the maxillary central tooth. The CER cavity was created on the labial side of the tooth model. The coronal side of the resorption cavity was restored with composite, and the radicular side with different materials (MTA, Biodentine, BioAggregate, calcium-enriched cement [CEM], glass ionomer cement [GIC], and resin-modified glass ionomer cement [RMGIC]). A static force of 300 N was applied to the palatal surface of the crown at an angle of 135° to the long axis of the tooth. The stress distributions in dentin and repair materials were analyzed. RESULTS The highest stress in dentin was seen in the fFigmodel with unrepaired CER. In the models repaired with MTA, GIC, and RMGIC, von Mises stress values in dentin were greater than for repairs with Biodentine, BioAggregate, and CEM materials. The von Mises stress on the repair materials applied to the root were highest for the BioAggregate material. This was followed by CEM, Biodentine, MTA, RMGIC, and GIC materials, respectively. CONCLUSION The repair of CER in the tooth significantly decreased the stress values in dentin. Biodentine, BioAggregate, and CEM absorbed more force and caused less stress to be transmitted to dentin compared to MTA, GIC, and RMGIC.
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Affiliation(s)
- Merve Çoban Öksüzer
- Department of Endodontics, Faculty of Dentistry, Recep Tayyip Erdoğan University, Rize, Türkiye.
| | - Ahter Şanal Çıkman
- Department of Endodontics, Faculty of Dentistry, Recep Tayyip Erdoğan University, Rize, Türkiye
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Wang X, Xiao Y, Song W, Ye L, Yang C, Xing Y, Yuan Z. Clinical application of calcium silicate-based bioceramics in endodontics. J Transl Med 2023; 21:853. [PMID: 38007432 PMCID: PMC10676601 DOI: 10.1186/s12967-023-04550-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 09/21/2023] [Indexed: 11/27/2023] Open
Abstract
Pulp treatment is extremely common in endodontics, with the main purpose of eliminating clinical symptoms and preserving tooth physiological function. However, the effect of dental pulp treatment is closely related to the methods and materials used in the process of treatment. Plenty of studies about calcium silicate-based bioceramics which are widely applied in various endodontic operations have been reported because of their significant biocompatibility and bioactivity. Although most of these materials have superior physical and chemical properties, the differences between them can also have an impact on the success rate of different clinical practices. Therefore, this review is focused on the applications of several common calcium silicate-based bioceramics, including Mineral trioxide aggregate (MTA), Biodentine, Bioaggregate, iRoot BP Plus in usual endodontic treatment, such as dental pulp capping, root perforation repair, regenerative endodontic procedures (REPs), apexification, root-end filling and root canal treatment (RCT). Besides, the efficacy of these bioceramics mentioned above in human trials is also compared, which aims to provide clinical guidance for their clinical application in endodontics.
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Affiliation(s)
- Xinyuan Wang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Yizhi Xiao
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Wencheng Song
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Lanxiang Ye
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Chen Yang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Yuzhen Xing
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China.
| | - Zhenglin Yuan
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China.
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Zanjad SR, Justin RM, Patil PN, Sarda AS, Srivastava HM, Darade LD. Comparison of fracture resistance of simulated immature teeth using four different commercially available apexification materials - An in vitro study. Indian J Dent Res 2023; 34:75-79. [PMID: 37417062 DOI: 10.4103/ijdr.ijdr_763_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023] Open
Abstract
Introduction The aim of this study was to compare the fracture resistance of simulated immature teeth using four different apical plug materials, i.e. Pro- Root MTA, Neo- MTA Plus, Biodentine, and Bioactive Glass. Materials and Methods 80 extracted human maxillary anterior teeth were divided into 4 groups for this study. They were prepared using Peeso reamers to simulate immature teeth and to mimic Cvek's stage 3 of root development. A 5 mm apical barrier was placed using different materials. The remaining canal was obturated using gutta-percha and AH plus sealer. The final samples were stored at 37°C and 100% humidity for 4 weeks. Fracture resistance of the teeth was measured in Newtons using a universal testing machine. The comparison of fracture resistance between the four groups was done using Kruskal Walis ANOVA followed by post hoc Mann Whitney U test for pairwise comparison. Results Biodentine group showed the highest fracture resistance as compared to the other three groups and the difference was highly significant (P < 0.001). Conclusions Biodentine can be advocated over MTA as an effective material for the management of teeth with wide open apex. Bioactive glass also has shown promising results in increasing the fracture resistance of simulated immature teeth.
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Affiliation(s)
- Supriya R Zanjad
- Department of Conservative Dentistry and Endodontics, Aditya Dental College, Beed, Maharashtra, India
| | - Robert M Justin
- Department of Conservative Dentistry and Endodontics, Aditya Dental College, Beed, Maharashtra, India
| | - Pranjali N Patil
- Department of Conservative Dentistry and Endodontics, Aditya Dental College, Beed, Maharashtra, India
| | - Aditi S Sarda
- Department of Conservative Dentistry and Endodontics, Aditya Dental College, Beed, Maharashtra, India
| | - Himanshu M Srivastava
- Department of Conservative Dentistry and Endodontics, Aditya Dental College, Beed, Maharashtra, India
| | - Lalit D Darade
- Department of Conservative Dentistry and Endodontics, D.Y. Patil Dental College, Navi Mumbai, Maharashtra, India
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Ardila CM, Vivares-Builes AM. Clinical Efficacy of Treatment of Endodontic-Periodontal Lesions: A Systematic Scoping Review of Experimental Studies. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192013649. [PMID: 36294232 PMCID: PMC9603271 DOI: 10.3390/ijerph192013649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 05/31/2023]
Abstract
BACKGROUND In this review, we evaluated the clinical efficacy of interventions used for the treatment of endo-perio lesions (EPL). METHODS A systematic scoping review of clinical trials was developed. RESULTS Seven clinical trials were studied. In at least one study group of six of the seven evaluated trials, endodontic and periodontal treatments were performed simultaneously. All trials showed improvement in probing depth in the studied groups; nevertheless, the experimental groups of five studies demonstrated a statistically significant reduction in this parameter. An increase in clinical attachment level was also reported (p < 0.05). Most trials reported an increase in the filling of the bone defect following therapy (p < 0.05). Mechanical periodontal therapy implemented simultaneously with endodontic therapy demonstrated efficacy in the treatment of concurrent EPL without communication. Endodontic treatment and immediate periodontal surgery did not affect the result of the management of combined EPL with apical communication. The use of diode laser, the management of platelet-rich fibrin (PRF) and titanium-prepared PRF, and the implementation of bone grafts plus endodontic treatment with mineral-trioxide or gutta-percha seems to be an adequate strategy in patients with EPL. CONCLUSIONS The treatment of EPL using simultaneous endodontic and periodontal therapies seems to be an acceptable treatment alternative.
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Affiliation(s)
- Carlos M. Ardila
- Basic Studies Department, School of Dentistry, Universidad de Antioquia UdeA, Medellín 050010, Colombia
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Multifactorial Analysis of Endodontic Microsurgery Using Finite Element Models. J Pers Med 2022; 12:jpm12061012. [PMID: 35743798 PMCID: PMC9224708 DOI: 10.3390/jpm12061012] [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: 05/14/2022] [Revised: 06/17/2022] [Accepted: 06/18/2022] [Indexed: 12/02/2022] Open
Abstract
Background: The present study aimed to classify the relative contributions of four biomechanical factors—the root-end filling material, the apical preparation, the root resection length, and the bone height—on the root stresses of the resected premolar. Methods: A design of experiments approach based on a defined subset of factor combinations was conducted to calculate the influence of each factor and their interactions. Sixteen finite element models were created and analyzed using the von Mises stress criterion. The robustness of the design of experiments was evaluated with nine supplementary models. Results: The current study showed that the factors preparation and bone height had a high influence on root stresses. However, it also revealed that nearly half of the biomechanical impact was missed without considering interactions between factors, particularly between resection and preparation. Conclusions: Design of experiments appears to be a valuable strategy to classify the contributions of biomechanical factors related to endodontics. Imagining all possible interactions and their clinical impact is difficult and can require relying on one’s own experience. This study proposed a statistical method to quantify the mechanical risk when planning apicoectomy. A perspective could be to integrate the equation defined herein in future software to support decision-making.
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Regenerative Therapy Modality for Treatment of True Combined Endodontic-Periodontal Lesions: A Randomized Controlled Clinical Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18126220. [PMID: 34201328 PMCID: PMC8227857 DOI: 10.3390/ijerph18126220] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 12/16/2022]
Abstract
The aim of this in-vivo study was to evaluate/compare the clinical periodontal parameters in patients with true combined endo-perio lesions (EPL), treated with gutta-percha (GP) and mineral trioxide (MTA) as an obturation material alone and with addition of bone grafting in such lesions. 120 Saudi patients (mean age = 41yrs) diagnosed with true combined EPL participated in this study. Group I (control group, n = 30) was treated with conventional endodontic treatment using GP for obturation. Group II (n = 30) was treated with conventional endodontic treatment using MTA for obturation. Group III (n = 30) was treated with conventional endodontic treatment using GP for obturation + grafting procedure to fill the bony defect. Group IV (n = 30) was treated with conventional endodontic treatment using MTA for obturation + grafting procedure to fill the bony defect. Clinical parameters (Pocket depth (PD); Clinical attachment loss (CAL); keratinized tissue width (KTW); gingival phenotype (G.Ph.) and Cone Beam Computed Tomography Periapical Index (CBCTPAI)) were recorded and compared at baseline, 3, 6, 12 months’ interval. For the groups III and IV, CBCTPAI showed significant difference (p < 0.0001) with the other groups at 6 months and 1-year interval. The group with MTA + bone graft showed 76% and 90% patients with 0 score at 6 months and 1-year follow-up, respectively. Comparison of mean values of PD among study groups at 3 months, 6 months and 1 year showed significant difference at 3 months, whereas the mean PD values of subjects in GP + bone graft showed significantly higher PD values than other 3 groups (p = 0.025). Use of GP and MTA for root canal obturation along with periodontal therapy and bone augmentation helps in resolving complex endo-perio lesions. Bone grafting in addition to obturation with MTA was found to be the best treatment strategy in management of EPL cases and is recommended for clinicians who are treating EPL patients.
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Effect of mineral trioxide aggregate and biodentine™ on fracture resistance of immature teeth dentine over time: in vitro study. Eur Arch Paediatr Dent 2021; 22:603-609. [PMID: 33387346 DOI: 10.1007/s40368-020-00597-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 12/02/2020] [Indexed: 10/22/2022]
Abstract
PURPOSE The aim of this in vitro study was to evaluate the effect of root filling with White Mineral Trioxide Aggregate (WMTA) and Biodentine™ (BD) on the fracture resistance of simulated immature teeth over different time periods. METHODS Sixty sound-extracted human single-rooted premolars were randomly allocated into 3 groups, 2 experimental and 1 control group, with 20 teeth each. Simulation of roots into immature apices were done using Peeso reamers. After preparation, the root canals of teeth in the experimental groups were completely filled with either WMTA or BD. The control group was subdivided into positive controls (n = 10) which received no treatment and negative controls (n = 10) which were prepared the same way and filled with normal saline. The specimens were subjected to fracture testing using a universal testing machine after 2 weeks and 3 months. The peak load to fracture and the fracture location were recorded. RESULTS Regarding fracture resistance, the MTA group had the highest fracture resistance at 2 weeks testing, while at 3 months there was no significant difference between the groups (P > 0.05). Regarding fracture location, at 2 weeks there was no significant difference in the fracture location between the groups, while at 3 months, the difference was significant (P < 0.05), the middle root fracture being the most frequent (63.3%). CONCLUSION No significant difference in fracture resistant of simulated immature teeth was observed after 3 months when they were filled with Biodentine or WMTA, indicating that Biodentine could be a suitable substitute for MTA. There was no difference in the possible fracture location at 2 weeks, while after 3 months middle root fractures were more frequent.
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Aktemur Türker S, Kaşıkçı S, Uzunoğlu Özyürek E, Olcay K, Elmas Ö. The effect of radiotherapy delivery time and obturation materials on the fracture resistance of mandibular premolars. Clin Oral Investig 2020; 25:901-905. [PMID: 32472255 DOI: 10.1007/s00784-020-03378-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 05/25/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVES This ex vivo study was performed to investigate the effect of radiotherapy (RT) delivery time on fracture resistance of mandibular premolars filled with Biodentine or gutta-percha/sealer (GPS). MATERIALS AND METHODS Seventy-two mandibular premolars were used in this study. Randomly selected 24 teeth were kept intact for the control groups (with and without irradiation). Then, the remaining 48 teeth were randomly assigned into 4 groups (n = 12) according to RT delivery time (irradiated before or after root canal treatment) and obturation materials as follows: Group RT + GPS, Group: GPS + RT, Group RT + Biodentine and Group Biodentine + RT. The samples were either initially endodontically treated and then irradiated or initially irradiated and then endodontically treated with one of the abovementioned materials. The samples were irradiated at 2 Gy per fraction, 5 times a week for a total dose of 60 Gy in 30 fractions over 6 weeks. The roots were embedded in self-polymerizing acrylic resin. The fracture resistance was evaluated in a universal testing machine. Data was analyzed by one-way ANOVA and Games-Howell post hoc test at p < 0.05. RESULTS Radiation therapy significantly reduced fracture resistance of intact teeth (p < 0.05). The highest fracture resistance was observed in intact/non-irradiated teeth and the lowest fracture resistance in Biodentine + RT group (p < 0.05). The effect of RT delivery time was insignificant when GPS was preferred as the root canal filling material (p > 0.05); it was significant when preferring Biodentine (p < 0.05). When RT was applied to the teeth after Biodentine obturation, the fracture resistance decreased significantly compared to the teeth that were obturated with GPS after or before RT application (p < 0.05). CONCLUSION Both RT time and obturation materials (Biodentine or gutta-percha/sealer) affect the fracture resistance of the endodontically treated teeth. CLINICAL RELEVANCE Endodontic treatment could be completed with both materials after RT; however, when the endodontic treatment was initially completed and the teeth were subsequently exposed to RT, it was shown that the reinforcement effect of Biodentine decreased.
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Affiliation(s)
- Sevinç Aktemur Türker
- Department of Endodontics, Faculty of Dentistry, Zonguldak Bülent Ecevit University, Zonguldak, Turkey.
| | - Sena Kaşıkçı
- Department of Endodontics, Faculty of Dentistry, Zonguldak Bülent Ecevit University, Zonguldak, Turkey
| | - Emel Uzunoğlu Özyürek
- Department of Endodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
| | - Keziban Olcay
- Department of Endodontics, Faculty of Dentistry, Istanbul Medipol University, Istanbul, Turkey
| | - Özlem Elmas
- Department of Radiation Oncology, Faculty of Medicine, Zonguldak Bülent Ecevit University , Zonguldak, Turkey
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Darak P, Likhitkar M, Goenka S, Kumar A, Madale P, Kelode A. Comparative evaluation of fracture resistance of simulated immature teeth and its effect on single visit apexification versus complete obturation using MTA and biodentine. J Family Med Prim Care 2020; 9:2011-2015. [PMID: 32670957 PMCID: PMC7346951 DOI: 10.4103/jfmpc.jfmpc_1145_19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 12/21/2019] [Accepted: 01/07/2020] [Indexed: 12/18/2022] Open
Abstract
AIM AND OBJECTIVES This study sought to evaluate and compare the fractured resistance of simulated immature teeth and the effect of single visit apexification versus complete obturation using MTA and biodentine. MATERIAL AND METHODOLOGY Forty-five freshly extracted sound maxillary central incisors with single canal were selected. The apical 5 mm of each sample was then sectioned to simulate Cvek's stage 3 root development access cavity preparation, followed by preparation using peeso reamers. Irrigation was carried out followed by randomization of samples. Obturation was performed using different materials. Fracture resistance was checked under universal testing machine, by recording the ultimate load to fracture in Newtons. STATISTICAL ANALYSIS Statistical analysis was performed using SPSS 20.0 Software. One-way analysis of variance followed by pair wise comparison of the groups was performed using Tukey's post-hoc test. The significance level was set at P < 0.05. RESULTS All the experimental groups showed statistically higher value of fracture resistance than the control groups. Group I (entire canal obturated with MTA) reported highest value of fracture resistance followed by group III (entire canal obturated with biodentine), group II, and group IV. CONCLUSION In apexification cases, reinforcing the immature teeth with bioceramic materials such as MTA and biodentine is advantageous. CLINICAL SIGNIFICANCE Clinically in patients, high success rate of apexification can be achieved with complete MTA obturation as compared to MTA and biodentine apical plug and gutta percha obturation.
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Affiliation(s)
- Pawan Darak
- Assistant Professor, Department of Conservative Dentistry and Endodontics, Dr. H.S.R.S.M Dental College and Hospital, Hingoli, Maharashtra, India
| | - Manoj Likhitkar
- Associate Professor, Conservative Dentistry and Endodontics, Dr. H.S.R.S.M Dental College and Hospital, Hingoli, Maharashtra, India
| | - Shachi Goenka
- Associate Professor, Conservative Dentistry and Endodontics, Dr. H.S.R.S.M Dental College and Hospital, Hingoli, Maharashtra, India
| | - Abhinav Kumar
- Assistant Professor, Departments of Oral and Maxillofacial Surgery, Dr. H.S.R.S.M Dental College and Hospital, Hingoli, Maharashtra, India
| | - Priyanka Madale
- Postgraduate, Department of Conservative Dentistry and Endodontics, Dr. H.S.R.S.M Dental College and Hospital, Hingoli, Maharashtra, India
| | - Ashwini Kelode
- Postgraduate, Department of Conservative Dentistry and Endodontics, Dr. H.S.R.S.M Dental College and Hospital, Hingoli, Maharashtra, India
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Aktemur Türker S, Uzunoğlu E, Deniz Sungur D, Tek V. Fracture Resistance of Teeth with Simulated Perforating Internal Resorption Cavities Repaired with Different Calcium Silicate-based Cements and Backfilling Materials. J Endod 2018; 44:860-863. [PMID: 29550008 DOI: 10.1016/j.joen.2018.01.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 01/11/2018] [Accepted: 01/31/2018] [Indexed: 11/25/2022]
Abstract
INTRODUCTION This study assessed the fracture resistance (FR) of teeth with simulated perforating internal resorption cavities repaired with different calcium silicate-based cements (CSCs) and backfilling materials. METHODS Ninety-six mandibular premolar teeth were used. Twelve of the teeth were assigned as negative control group. Remaining roots were instrumented with rotary files, and standardized internal resorption cavities were prepared on the middle half of roots with burs. Twelve of the samples were not further interfered and were assigned as a positive control group. The apical 4 mm of the remaining 72 root canals was obturated with single-cone technique and divided into 6 groups according to CSCs used for repairing of cavities and backfilling materials as follows: MTA + MTA, MTA + gutta-percha/sealer, Biodentine + Biodentine, Biodentine + gutta-percha/sealer, MTA Plus + MTA Plus, and MTA Plus + gutta-percha/sealer. Specimens were embedded in acrylic resin and then subjected to fracture testing. The forces when the fracture occurred were analyzed with analysis of variance and Bonferroni tests at P = .05. RESULTS No significant difference was found among CSCs irrespective of backfilling materials (P > .05). Groups MTA + gutta-percha/sealer, Biodentine + gutta-percha/sealer, and MTA Plus + gutta-percha/sealer showed significantly lower FR compared with groups MTA + MTA, Biodentine + Biodentine, and MTA Plus + MTA Plus, respectively (P < .05). The highest FR was observed in group Biodentine + Biodentine, and the lowest was in group MTA Plus + gutta-percha/sealer. FR of positive control group was statistically lower than groups completely filled with CSCs (P < .05), whereas FR of negative control group was statistically higher than the groups combined with gutta-percha and sealer (P < .05). CONCLUSIONS The backfilling with CSCs may be a preferable material rather than gutta-percha/sealer combination for the roots with perforated internal resorptions.
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Affiliation(s)
- Sevinç Aktemur Türker
- Bülent Ecevit University, Faculty of Dentistry, Department of Endodontics, Zonguldak, Turkey.
| | - Emel Uzunoğlu
- Hacettepe University, Faculty of Dentistry, Department of Endodontics, Ankara, Turkey
| | - Derya Deniz Sungur
- Hacettepe University, Faculty of Dentistry, Department of Endodontics, Ankara, Turkey
| | - Vildan Tek
- Bülent Ecevit University, Faculty of Dentistry, Department of Endodontics, Zonguldak, Turkey
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