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Alovisi M, Baldi A, Comba A, Gamerro R, Paolone G, Mandurino M, Dioguardi M, Roggia A, Scotti N. Long-Term Evaluation of Pulp Vitality Preservation in Direct and Indirect Pulp Capping: A Retrospective Clinical Study. J Clin Med 2024; 13:3962. [PMID: 38999526 PMCID: PMC11242907 DOI: 10.3390/jcm13133962] [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: 06/03/2024] [Revised: 06/30/2024] [Accepted: 07/02/2024] [Indexed: 07/14/2024] Open
Abstract
Background: This retrospective clinical study aimed to assess dental pulp tissue reactions to direct and indirect pulp capping after 10 years of follow-up. Methods: A total of 276 permanent teeth with deep carious lesions were evaluated and divided into five groups: Group (1), direct pulp capping with Mineral Trioxide Aggregate cement; Group (2), direct pulp capping with a resin-based glass ionomer; Group (3), direct pulp capping with TheraCal; Group (4), indirect pulp capping with a three-step total-etch adhesive system; and Group (5), indirect pulp capping with a two-step self-etch adhesive system. Results: A 72.5% success rate was achieved overall. A statistically significant difference was found when comparing direct and indirect pulp capping with a success rate of 23.8% and 93.8%, respectively. For direct pulp-capping procedures, the area of pulp exposure was correlated with pulp necrosis (p = 0.035), while bleeding after exposure appeared independent (p = 0.053). Patient age was significantly related to the maintenance of pulp vitality (p = 0.013). A statistically significant correlation between the pulp-capping material and the occurrence of pulp necrosis was discovered (p = 0.017). For the indirect pulp-capping treatments, a significant correlation between patient age (p = 0.021) and the adhesive system (p = 0.019) with pulp necrosis was described. Conclusions: The pulp-capping material, patient age, and the width of the pulp exposure before the procedure should be carefully considered when performing direct pulp-capping treatments. The performance of the etch-and-rinse adhesive systems was superior to the self-etch system during the indirect pulp-capping procedures.
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Affiliation(s)
- Mario Alovisi
- Department of Surgical Sciences, Dental School, University of Turin, 10124 Turin, Italy
| | - Andrea Baldi
- Department of Surgical Sciences, Dental School, University of Turin, 10124 Turin, Italy
| | - Allegra Comba
- Department of Surgical Sciences, Dental School, University of Turin, 10124 Turin, Italy
| | - Roberta Gamerro
- Department of Surgical Sciences, Dental School, University of Turin, 10124 Turin, Italy
| | - Gaetano Paolone
- Department of Dentistry, Dental School, IRCCS San Raffaele Hospital, Vita-Salute University, 20123 Milan, Italy
| | - Mauro Mandurino
- Department of Dentistry, Dental School, IRCCS San Raffaele Hospital, Vita-Salute University, 20123 Milan, Italy
| | - Mario Dioguardi
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
| | - Andrea Roggia
- Department of Surgical Sciences, Dental School, University of Turin, 10124 Turin, Italy
| | - Nicola Scotti
- Department of Surgical Sciences, Dental School, University of Turin, 10124 Turin, Italy
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Mansour MM, Moussa SM, Meheissen MA, Aboelseoud MR. Bacterial sealing ability of calcium silicate-based sealer for endodontic surgery: an in-vitro study. BMC Oral Health 2024; 24:584. [PMID: 38773504 PMCID: PMC11107006 DOI: 10.1186/s12903-024-04309-3] [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: 01/13/2024] [Accepted: 04/29/2024] [Indexed: 05/23/2024] Open
Abstract
BACKGROUND Apical surgery with standard retrograde maneuvers may be challenging in certain cases. Simplifying apical surgery to reduce operating time and streamline retrograde manipulation is an emerging need in clinical endodontics. AIM OF THE STUDY The aim of the study was to compare the bacterial sealing ability of a calcium silicate-based sealer with the single cone technique combined with root end resection only, and calcium silicate-based sealer as a retrograde filling versus MTA retrofilling, and to analyze bacterial viability using confocal laser scanning microscope (CLSM). MATERIALS AND METHODS In this in vitro experimental study, 50 extracted human maxillary incisor teeth were instrumented and randomly divided into five groups: three experimental groups, a positive control group, and a negative control group (n = 10/group). In the experimental groups, the roots were obturated using the single cone technique (SCT) and a calcium silicate-based sealer. In group 1, the roots were resected 3 mm from the apex with no further retrograde preparation or filling. In groups 2 and 3, the roots were resected, retroprepared, and retrofilled with either a calcium silicate-based sealer or MTA, respectively. Group 4 (positive control) was filled with a single gutta-percha cone without any sealer. In group 5 (negative control), the canals were left empty, and the roots were sealed with wax and nail varnish. A bacterial leakage model using Enterococcus faecalis was employed to assess the sealing ability over a 30-day period, checking for turbidity and analyzing colony forming units (CFUs) per milliliter. Five specimens from each group were examined using CLSM for bacterial viability. Data for the bacterial sealing ability were statistically analyzed using chi-squared and Kruskal-Wallis tests. RESULTS The three experimental groups did not show significant differences in terms of bacterial leakage, or bacterial counts (CFUs) (P > 0.05). However, significant differences were observed when comparing the experimental groups to the positive control group. Notably, the calcium silicate-based sealer, when used as a retrofilling, yielded the best sealing ability. CLSM imaging revealed viable bacterial penetration in all the positive control group specimens while for the experimental groups, dead bacteria was the prominent feature seen. CONCLUSION Within the limitations of this study, it could be concluded that the bacterial sealing ability of calcium silicate-based sealer with the single cone technique combined with root end resection only and calcium silicate-based sealer as a retrograde filling were comparable with MTA retrofilling during endodontic surgical procedures.
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Affiliation(s)
- Mai M Mansour
- Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Alexandria, 21527, Egypt.
| | - Sybel M Moussa
- Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Alexandria, 21527, Egypt
| | - Marwa A Meheissen
- DMedical Microbiology & Immunology, Faculty of Medicine, Alexandria University, Alexandria, 21527, Egypt
| | - Mahmoud R Aboelseoud
- Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Alexandria, 21527, Egypt
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Enkhbileg N, Kim JW, Chang SW, Park SH, Cho KM, Lee Y. A Study on Nanoleakage of Apical Retrograde Filling of Premixed Calcium Silicate-Based Cement Using a Lid Technique. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2366. [PMID: 38793436 PMCID: PMC11123415 DOI: 10.3390/ma17102366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/02/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024]
Abstract
This study aimed to compare the nanoleakage of retrograde fillings with premixed calcium silicate-based putty and mineral trioxide aggregate (MTA), using two different techniques (traditional and Lid). Sixty-four extracted human teeth were decoronated, then root canals and ends were instrumented for retrograde filling and divided into four groups according to the retrograde filling technique: the traditional and the Lid technique. Each group (n = 15) was filled with Ceraseal + Well-Root putty, Well-Root putty, Ceraseal + ProRoot MTA, and ProRoot MTA. The nanoleakage was evaluated using the Nanoflow device (IB Systems) on days 1, 3, 7, 15 and 30. Data were collected twice per second at the nanoscale (nL/s) and calculated after archiving the stabilization of fluid flow. The Kruskal-Wallis and Mann-Whitney U-tests were used for statistical analysis. All groups showed enhanced sealing ability over time. Regardless of filling materials, the Well-Root putty, Ceraseal+Well-Root putty, and Ceraseal+ProRoot MTA groups indicated less nanoleakage than the ProRoot MTA group in the first week of evaluation (p < 0.05). Although all groups did not show significant differences after 2 weeks, the Ceraseal+ProRoot MTA group leaked less than ProRoot MTA on Days 3 and 7 (p < 0.05). The scanning electron microscopic examined good adaptation to the cavity wall, which was similar to nanoleakage results. Premixed calcium silicate-based putty retrograde filling material alone and using the "lid technique" were shown to be faster and less prone to nanoleakage when compared to MTA.
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Affiliation(s)
- Nyamsuren Enkhbileg
- Department of Periodontics and Endodontics, School of Dentistry, Mongolian National University of Medical Sciences, Ulaanbaatar 14210, Mongolia;
| | - Jin Woo Kim
- Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University, 7 Jukheon-gil, Gangneung 25457, Republic of Korea; (J.W.K.); (S.-H.P.); (K.M.C.)
| | - Seok Woo Chang
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Republic of Korea;
| | - Se-Hee Park
- Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University, 7 Jukheon-gil, Gangneung 25457, Republic of Korea; (J.W.K.); (S.-H.P.); (K.M.C.)
| | - Kyung Mo Cho
- Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University, 7 Jukheon-gil, Gangneung 25457, Republic of Korea; (J.W.K.); (S.-H.P.); (K.M.C.)
| | - Yoon Lee
- Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University, 7 Jukheon-gil, Gangneung 25457, Republic of Korea; (J.W.K.); (S.-H.P.); (K.M.C.)
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Wu M, Xu L, Xing F, Xiao R, Wu W. Novel self-setting cements based on tricalcium silicate/(β-tricalcium phosphate/monocalcium phosphate anhydrous)/hydroxypropyl methylcellulose: From hydration mechanism to biological evaluations. Int J Biol Macromol 2024; 267:131580. [PMID: 38688788 DOI: 10.1016/j.ijbiomac.2024.131580] [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: 01/10/2024] [Revised: 02/29/2024] [Accepted: 04/11/2024] [Indexed: 05/02/2024]
Abstract
Despite the clinical success of tricalcium silicate (TCS)-based materials in endodontics, the inferior handling characteristic, poor anti-washout property and slow setting kinetics hindered their wider applications. To solve these problems, an injectable fast-setting TCS/β-tricalcium phosphate/monocalcium phosphate anhydrous (β-TCP/MCPA) cement was developed for the first time by incorporation of hydroxypropyl methylcellulose (HPMC) and β-TCP/MCPA. The physical-chemical characterization (setting time, anti-washout property, injectability, compressive strength, apatite mineralization and sealing property) of TCS/(β-TCP/MCPA) were conducted. Its hydration mechanism was also investigated. Furthermore, the cytocompatibility and osteogenic/odontogenic differentiation of stem cells isolated from human exfoliated deciduous teeth (SHED) treated with TCS/β-TCP/MCPA were studied. The results showed that HPMC could provide TCS with good anti-washout ability and injectability but slow hydration process. However, β-TCP/MCPA effectively enhanced anti-washout characteristics and reduced setting time due to faster hydration kinetics. TCS/(β-TCP/MCPA) obtained around 90 % of injection rate and high compressive strength whereas excessive additions of β-TCP/MCPA compromised its injectability and compressive strength. TCS/(β-TCP/MCPA) can induce apatite deposition and form a tight marginal sealing at the dentin-cement interface. Additionally, TCS/(β-TCP/MCPA) showed good biocompatibility and promoted osteo/odontogenic differentiation of SHED. In general, our results indicated that TCS/(β-TCP/MCPA) may be particularly promising as an injectable bioactive cements for endodontic treatment.
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Affiliation(s)
- Meng Wu
- School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, PR China.
| | - Laijun Xu
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, PR China; School of Stomatology, Changsha Medical University, Changsha, Hunan 410219, PR China
| | - Fei Xing
- Department of Orthopedic Surgery, Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, PR China
| | - Rongjun Xiao
- School of Stomatology, Changsha Medical University, Changsha, Hunan 410219, PR China
| | - Wangping Wu
- School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, PR China
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Rao LN, Shetty A, Dsouza N, Shetty H. Assessment of sealing efficacy, radiopacity, and surface topography of a bioinspired polymer for perforation repair. PeerJ 2024; 12:e17237. [PMID: 38699192 PMCID: PMC11064857 DOI: 10.7717/peerj.17237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/22/2024] [Indexed: 05/05/2024] Open
Abstract
Background Root perforation repair presents a significant challenge in dentistry due to inherent limitations of existing materials. This study explored the potential of a novel polydopamine-based composite as a root repair material by evaluating its sealing efficacy, radiopacity, and surface topography. Methods Confocal microscopy assessed sealing ability, comparing the polydopamine-based composite to the gold standard, mineral trioxide aggregate (MTA). Radiopacity was evaluated using the aluminium step wedge technique conforming to ISO standards. Surface roughness analysis utilized atomic force microscopy (AFM), while field emission scanning electron microscopy (FESEM) visualized morphology. Results The polydopamine-based composite exhibited significantly superior sealing efficacy compared to MTA (P < 0.001). Radiopacity reached 3 mm aluminium equivalent, exceeding minimum clinical requirements. AFM analysis revealed a smooth surface topography, and FESEM confirmed successful composite synthesis. Conclusion This study demonstrates promising properties of the polydopamine-based composite for root perforation repair, including superior sealing efficacy, clinically relevant radiopacity, and smooth surface topography. Further investigation is warranted to assess its clinical viability and potential translation to endodontic practice.
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Affiliation(s)
- Lakshmi Nidhi Rao
- Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Aditya Shetty
- Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Neevan Dsouza
- Department of Biostatistics, K S Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Heeresh Shetty
- Department of Conservative Dentistry and Endodontics, Nair Dental College, Mumbai, Maharashtra, India
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Patri G, Bansal S, Lath H, Chatterjee I, Majee N, Sinha Y. Comparative evaluation of the antibacterial efficacy of two experimental calcium silicate-based intracanal medicaments: An in-vitro study. JOURNAL OF CONSERVATIVE DENTISTRY AND ENDODONTICS 2024; 27:419-423. [PMID: 38779216 PMCID: PMC11108418 DOI: 10.4103/jcde.jcde_74_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: 02/10/2024] [Revised: 03/01/2024] [Accepted: 03/06/2024] [Indexed: 05/25/2024]
Abstract
Introduction Success of endodontic treatment relies on minimizing microbial load by chemo-mechanical preparation and intra-canal medication(ICM). Calcium hydroxide based ICMs have known disadvantages. Calcium silicate-based cements(CSC) exhibit antibacterial activity, thus promoting researchers to experiment with their formulations to use them as ICMs. Aim Evaluation and comparison of the antimicrobial efficacy of two experimental CSC (MTA & Biodentine + 2%chlorhexidine) and Bio-C Temp against E.faecalis. Methods and Material Test materials were divided into four groups namely Group1-Bio-C Temp, Group2-UltraCAL XS, Group3-Biodentine+2%CHX and Group4-MTA+2%CHX. Direct contact test was done by placing a standardized suspension of E.faecalis on test materials and bacterial growth was assessed spectrophotometrically using ELISA at one, three and seven days. Statistical Analysis Data was analysed using one-way ANOVA, Tukey's multiple post hoc test and paired-t test. Results: Intragroup comparison revealed decreased mean optical density(OD) in groups 1, 2, and 4; no significant difference in group 3. Intergroup comparison showed statistical differences in mean OD values between groups (3 and 4); groups (1 and 2) at days one(p-0.018) and three(p-0.035), but no difference individually. Group 4 showed the highest antimicrobial efficacy on day seven. Conclusion MTA+2%CHX & Biodentine+2%CHX showed better antimicrobial efficacy and hence could be used as potential ICMs.
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Affiliation(s)
- Gaurav Patri
- Department of Conservative Dentistry and Endodontics, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India
| | - Sonali Bansal
- Department of Conservative Dentistry and Endodontics, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India
| | - Harshita Lath
- Department of Conservative Dentistry and Endodontics, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India
| | - Ishika Chatterjee
- Department of Conservative Dentistry and Endodontics, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India
| | - Neelanjana Majee
- Department of Conservative Dentistry and Endodontics, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India
| | - Yash Sinha
- Department of Conservative Dentistry and Endodontics, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India
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Prado MC, Campos P, Pasetto S, Marciano MA, Sinhoreti MAC, Geraldeli S, de-Jesus-Soares A, Abuna G. Development of nanobiosilicate, tricalcium phosphate and chlorhexidine materials for biomineralization with crystallographic similarity to hydroxyapatite and biomodified collagen. Dent Mater 2024; 40:267-275. [PMID: 37989699 DOI: 10.1016/j.dental.2023.11.015] [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: 04/28/2023] [Revised: 09/24/2023] [Accepted: 11/14/2023] [Indexed: 11/23/2023]
Abstract
OBJECTIVES The aim of this work is to test experimental cements, doped with a silicate based bioactive nanoparticle (NanoBiosilicate). Methods, we synthesized a glass nanoparticle by Sol-Gel Stöber method, used to be incorporated in a dental material for endodontic uses. MATERIALS AND METHODS We assess the mineralizing properties and biocompatibility. Besides the crystallography characterization of the resultant new crystals. Results, After analysis, and comparison with commercial materials, the material tested was similar in mechanical properties required by ISO, The ion release was effective after 2 hr. of setting and the novel material was cell compatible accepted by ISO. RESULTS We found new formed Calcium Phosphate peaks in the spectroscopic analysis (FTIR), remarkably the crystals formed were comparable to hydroxyapatite when analyzed with a Selected Area Electron Diffractometer, with rings of 2.84 Å for 002, and the 2.77 Å is also visible for 210. The 6.83 Å and 6.88 Å, for respective 222 and 004. The incorporation of Chlorhexidine was not detrimental for this property, Significance, the features mentioned represented a progress in biomineralization field that was associated to an improved mineral structure formation with increased crystallographic similarity to natural hydroxyapatite. When chlorhexidine was added a favorable biomodification of the remaining collagen in dentinal walls and antimicrobial activity potential were also observed.
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Affiliation(s)
- Marina C Prado
- Department of Restorative Dentistry - Endodontics Division, Piracicaba Dental School - State University of Campinas (FOP-UNICAMP), Piracicaba, SP, Brazil; Department of General Dentistry, School of Dental Medicine - East Carolina University (ECU-SoDM), Greenville, NC, USA.
| | - Paulo Campos
- Department of Restorative Dentistry - Dental Materials Division, Piracicaba Dental School - State University of Campinas (FOP-UNICAMP), Piracicaba, SP, Brazil
| | - Silvana Pasetto
- Department of Biology, East Carolina University (ECU-SoDM), Greenville, NC, USA
| | - Marina A Marciano
- Department of Restorative Dentistry - Endodontics Division, Piracicaba Dental School - State University of Campinas (FOP-UNICAMP), Piracicaba, SP, Brazil
| | - Mário A C Sinhoreti
- Department of Restorative Dentistry - Dental Materials Division, Piracicaba Dental School - State University of Campinas (FOP-UNICAMP), Piracicaba, SP, Brazil
| | - Saulo Geraldeli
- Department of General Dentistry, School of Dental Medicine - East Carolina University (ECU-SoDM), Greenville, NC, USA
| | - Adriana de-Jesus-Soares
- Department of Restorative Dentistry - Endodontics Division, Piracicaba Dental School - State University of Campinas (FOP-UNICAMP), Piracicaba, SP, Brazil
| | - Gabriel Abuna
- Department of General Dentistry, School of Dental Medicine - East Carolina University (ECU-SoDM), Greenville, NC, USA.
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Yang N, Yang W, Shen R, Zhang S, Ma T, Liu Y. In vitro and in vivo evaluation of iRoot BP Plus as a coronal sealing material for regenerative endodontic procedures. Clin Oral Investig 2024; 28:70. [PMID: 38170260 PMCID: PMC10764398 DOI: 10.1007/s00784-023-05468-3] [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: 10/11/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024]
Abstract
OBJECTIVES To investigate in vitro effects of a nanoparticle bioceramic material, iRoot BP Plus, on stem cells from apical papilla (SCAP) and in vivo capacity to induce pulp-dentin complex formation. MATERIALS AND METHODS The sealing ability of iRoot BP Plus was measured via scanning electron microscopy (SEM). SCAP were isolated and treated in vitro by iRoot BP Plus conditioned medium, with mineral trioxide aggregate (MTA) conditioned medium and regular medium used as controls, respectively. Cell proliferation was assessed by BrdU labeling and MTT assay and cell migration was evaluated with wound healing and transwell assays. Osteo/odontogenic potential was evaluated by Alizarin red S staining and qPCR. Pulp-dentin complex formation in vivo was assessed by a tooth slice subcutaneous implantation model. RESULTS iRoot BP Plus was more tightly bonded with the dentin. There was no difference in SCAP proliferation between iRoot BP Plus and control groups (P > 0.05). iRoot BP Plus had a greater capacity to elevated cell migration (P < 0.05) and osteo/odontogenic marker expression and mineralization nodule formation of SCAP compared with MTA groups (P < 0.05). Furthermore, the new continuous dentine layer and pulp-like tissue was observed in the iRoot BP Plus group in vivo. CONCLUSIONS iRoot BP Plus showed excellent sealing ability, promoted the migration and osteo/odontogenesis of SCAP and induced pulp-dentin complex formation without affecting the cell proliferation, which indicated iRoot BP Plus was a promising coronal sealing material in REPs. CLINICAL RELEVANCE The coronal sealing materials play crucial roles for the outcomes of REPs. This study showed that iRoot BP Plus has good coronal sealing and promote pulp-dentin complex formation compared with MTA, providing experimental evidences for the clinical application of iRoot BP Plus as a promising coronal seal material in REPs.
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Affiliation(s)
- Ning Yang
- Department of Pediatric Dentistry, School and Hospital of Stomatology, China Medical University, 117 Nanjing North Street, Shenyang, 110002, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Wenxiao Yang
- Department of Pediatric Dentistry, School and Hospital of Stomatology, China Medical University, 117 Nanjing North Street, Shenyang, 110002, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Rou Shen
- Department of Pediatric Dentistry, School and Hospital of Stomatology, China Medical University, 117 Nanjing North Street, Shenyang, 110002, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Shengcai Zhang
- Department of Pediatric Dentistry, School and Hospital of Stomatology, China Medical University, 117 Nanjing North Street, Shenyang, 110002, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Tianchi Ma
- Department of Orthodontics, Shenyang Stomatology Hospital, 138 Zhongshan Road, Shenyang, 110004, China.
| | - Yao Liu
- Department of Pediatric Dentistry, School and Hospital of Stomatology, China Medical University, 117 Nanjing North Street, Shenyang, 110002, China.
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China.
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Bolhari B, Chitsaz N, Nazari S, Behroozibakhsh M, Sooratgar A, Hashemian A. Effect of Fluorohydroxyapatite on Biological and Physical Properties of MTA Angelus. ScientificWorldJournal 2023; 2023:7532898. [PMID: 37964892 PMCID: PMC10643032 DOI: 10.1155/2023/7532898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/03/2023] [Accepted: 10/18/2023] [Indexed: 11/16/2023] Open
Abstract
Objectives This study aimed to assess the effect of addition of fluorohydroxyapatite (FHI) on biological and physical properties of mineral trioxide aggregate (MTA) Angelus. Materials and Methods In this in vitro, experimental study, nano-FHI powder was first synthesized, and the morphology and chemical structure of particles were evaluated by scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD). Three groups were evaluated in this study: MTA Angelus, MTA modified with 10% FHA, and MTA modified with 15% FHA. After mixing, the materials were applied to ring molds (10 mm diameter, 1 mm height), and the setting time of the three groups was evaluated according to ISO6876 and ASTMC266-03 with a Gillmore needle. The pH was measured using a pH meter at 24 and 48 hours and 7 days after mixing. The cytotoxicity of the materials was assessed in freshly mixed form and after 1 and 7 days using the methyl thiazolyl tetrazolium (MTT) assay according to ISO10993-5. Data were analyzed by one-way and repeated measures ANOVA and Tukey's test (alpha = 0.05). Results The addition of FHA to MTA significantly decreased the initial setting time (P < 0.05) and had no significant effect on cell viability (compared with pure MTA Angelus) at 1 and 7 days. However, modified MTA groups in freshly mixed form showed significantly lower cell viability (P < 0.05). The pH remained alkaline at all time points. Conclusion Addition of 15% FHA to MTA Angelus decreased its setting time with no adverse effect on cell viability (except for fresh form) or pH.
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Affiliation(s)
- Behnam Bolhari
- Department of Endodontics, School of Dentistry, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Nazanin Chitsaz
- Department of Endodontics, School of Dentistry, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Sara Nazari
- Department of Dental Biomaterials, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marjan Behroozibakhsh
- Department of Dental Biomaterials, School of Dentistry, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Aidin Sooratgar
- Department of Endodontics, Tehran University of Medical Sciences (TUMS), International Campus, Tehran, Iran
| | - Atieh Hashemian
- Department of Dental Biomaterials, School of Dentistry, Tehran University of Medical Sciences (TUMS), Tehran, Iran
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10
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Ahmed MS, Hasan NH, Saeed MG. Chemical analysis of mineral trioxide agregate mixed with hyaluronic acids as an accelerant. Braz Dent J 2023; 34:50-66. [PMID: 38133092 PMCID: PMC10742354 DOI: 10.1590/0103-6440202305549] [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: 05/09/2023] [Accepted: 08/21/2023] [Indexed: 12/23/2023] Open
Abstract
MATERIALS AND METHOD Mineral trioxide aggregate (MTA) has many clinical applications in dentistry; the main drawback is the long setting. The main objective is to investigate and compare the chemical effect of using two commercially available hyaluronic acid hydrogels (HA) instead of distilled water for mixing MTA as an accelerant of setting time. Test materials were divided into three groups; Group 1: (control) mixing MTA with distilled water supplied by the manufacturer; Group 2: mixing MTA with a hybrid cooperative complex of high and low molecular weight HA (Profhilo®); Group 3: mixing MTA with High molecular weight / non-cross-linked HA (Jalupro®). Mixing time, and setting time (initial and final) were determined, Fourier-transform infrared spectroscopy, Energy-dispersive X-ray spectroscopy, Field emission Scanning Electron Microscopy, and X-ray diffraction were performed. RESULTS mixing time, initial, and final setting time for (MTA + HA) groups were significantly different and lower in comparison to the control group (p < 0.05). This study revealed higher expression of calcium silicate hydrate and calcium hydroxide expression with higher Ca release in the MTA + HA group than the control group. CONCLUSION commercially available HA demonstrated better chemical properties when used as a mixing medium for MTA. The Mixing and setting time for MTA + HA group were significantly shorter than those of the control group were. Thus, commercially available HA can be used as a mixing medium for MTA.
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Affiliation(s)
| | - Nadia H. Hasan
- Department of Conservative Dentistry, College of Dentistry,
University of Mosul, Mosul, Iraq
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11
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Papic M, Zivanovic S, Vucicevic T, Vuletic M, Papic MV, Milivojević N, Mirić A, Miletic Kovacevic M, Zivanovic M, Stamenkovic M, Zivkovic V, Mitrovic S, Jakovljevic V, Ljujic B, Popovic M. Effects of direct pulp capping with recombinant human erythropoietin and/or mineral trioxide aggregate on inflamed rat dental pulp. Mol Cell Biochem 2023:10.1007/s11010-023-04868-z. [PMID: 37880442 DOI: 10.1007/s11010-023-04868-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 10/01/2023] [Indexed: 10/27/2023]
Abstract
OBJECTIVE This study aimed to evaluate the dental pulp responses to recombinant human erythropoietin (rhEPO) and/or mineral trioxide aggregate (MTA) in pulp capping of inflamed dental pulp in vivo. MATERIALS AND METHODS In accordance with ARRIVE guidelines, pulp inflammation was induced by exposing the maxillary first molars (n = 64) of Wistar rats (n = 32) to the oral environment for two days. The exposed pulps were randomly assigned four groups based on the pulp capping material: rhEPO, MTA, MTA + rhEPO, or an inert membrane. An additional eight rats formed the healthy control group. After four weeks, the animals were euthanized, and histological, qRT-PCR, and spectrophotometric techniques were employed to analyze the left maxillary segments, right first maxillary molars, and blood samples, respectively. Statistical significance was set at p < 0.05 and < 0.001. RESULTS Pulp capping with rhEPO, MTA, or MTA + rhEPO resulted in lower inflammation and higher mineralization scores compared to untreated control. MTA + rhEPO group exhibited significantly decreased expression of tumor necrosis factor-alpha, and interleukin 1-beta, while MTA group showed substantially reduced expression of interferon-gamma. Both rhEPO and MTA + rhEPO groups presented elevated dentin matrix protein 1 levels compared to untreated control. Furthermore, pulp capping with rhEPO and/or MTA led to increased transforming growth factor-beta 1 expression and reductions of pro-inflammatory/immunoregulatory cytokine ratios and prooxidative markers. Pulp capping with rhEPO also resulted in increase of systemic antioxidative stress markers. CONCLUSION Capping with rhEPO or MTA + rhEPO resulted in a favorable effect that was similar or even superior to that of MTA.
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Affiliation(s)
- Milos Papic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica Str. 69, Kragujevac, Republic of Serbia.
| | - Suzana Zivanovic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica Str. 69, Kragujevac, Republic of Serbia
| | - Tamara Vucicevic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica Str. 69, Kragujevac, Republic of Serbia
| | - Miona Vuletic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica Str. 69, Kragujevac, Republic of Serbia
| | - Mirjana V Papic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica Str. 69, Kragujevac, Republic of Serbia
| | - Nevena Milivojević
- Department of Science, Institute for Information Technologies, University of Kragujevac, Kragujevac, Serbia
| | - Ana Mirić
- Department of Science, Institute for Information Technologies, University of Kragujevac, Kragujevac, Serbia
| | - Marina Miletic Kovacevic
- Department of Histology and Embryology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Marko Zivanovic
- Department of Science, Institute for Information Technologies, University of Kragujevac, Kragujevac, Serbia
| | | | - Vladimir Zivkovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Slobodanka Mitrovic
- Department of Pathology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Vladimir Jakovljevic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Biljana Ljujic
- Department of Genetics, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Milica Popovic
- Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica Str. 69, Kragujevac, Republic of Serbia
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12
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Majeed R, Elnawawy HM, Kutty MG, Yahya NA, Azami NH, Abu Kasim NH, Nabhan MS, Cooper PR, Camilleri J, Ahmed HMA. Physicochemical, mechanical and biological properties of nano-calcium silicate-based cements: a systematic review. Odontology 2023; 111:759-776. [PMID: 36864211 DOI: 10.1007/s10266-023-00786-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 01/17/2023] [Indexed: 03/04/2023]
Abstract
This systematic review evaluated the effects of nano-sized cement particles on the properties of calcium silicate-based cements (CSCs). Using defined keywords, a literature search was conducted to identify studies that investigated properties of nano-calcium silicate-based cements (NCSCs). A total of 17 studies fulfilled the inclusion criteria. Results indicated that NCSC formulations have favourable physical (setting time, pH and solubility), mechanical (push out bond strength, compressive strength and indentation hardness) and biological (bone regeneration and foreign body reaction) properties compared with commonly used CSCs. However, the characterization and verification for the nano-particle size of NCSCs were deficient in some studies. Furthermore, the nanosizing was not limited to the cement particles and a number of additives were present. In conclusion, the evidence available for the properties of CSC particles in the nano-range is deficient-such properties could be a result of additives which may have enhanced the properties of the material.
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Affiliation(s)
- Rabia Majeed
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Hoda Mohamed Elnawawy
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Muralithran Govindan Kutty
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Noor Azlin Yahya
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Noor Hayati Azami
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Noor Hayaty Abu Kasim
- Faculty of Dentistry, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia
| | - Mohamed Shady Nabhan
- Department of Removable Prosthodontics, Faculty of Dentistry, Ain Shams University, Cairo, Egypt
| | - Paul Roy Cooper
- Department of Oral Sciences, University of Otago, Otago, New Zealand
| | - Josette Camilleri
- School of Dentistry, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Hany Mohamed Aly Ahmed
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, 50603, Kuala Lumpur, Malaysia.
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Walsh RM, Attar S, Turner CL, Pistocchi R, Allen L, Woodmansey KF. Clinical outcomes of non-surgical root canal obturations using NeoMTA: A retrospective series of case reports. AUST ENDOD J 2023; 49 Suppl 1:455-461. [PMID: 36370128 DOI: 10.1111/aej.12712] [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: 03/29/2022] [Revised: 09/13/2022] [Accepted: 10/17/2022] [Indexed: 11/13/2022]
Abstract
NeoMTA is a commercially available tricalcium silicate-based cement intended for contact with pulp and periradicular tissues. The purpose of this study was to retrospectively evaluate the outcomes of non-surgical root canal treatments with NeoMTA obturations. Patients were treated in a private endodontic practice between 2015 and 2018. All cases, including initial treatments and retreatments, were either fully obturated with NeoMTA, or using gutta-percha with NeoMTA as an endodontic sealer. Outcomes were assessed using follow-up examination data with digital periapical radiographs with a minimum of a 1-year recall. Teeth were classified based on the clinical examination as: healed/healing (success), or non-healed (failure). 265 teeth were included with an average follow-up time of 1.3 years. The overall success rate was 91.7%. Only the presence of a pre-operative periapical radiolucency was found to significantly affect success. Comparison of obturation techniques demonstrated no effect on outcomes. NeoMTA is suitable for endodontic obturation.
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Affiliation(s)
- Ryan M Walsh
- Department of Endodontics, Texas A&M University College of Dentistry, Dallas, Texas, USA
- Advanced Endodontics of Texas, Keller, Texas, USA
| | - Sayeed Attar
- Advanced Endodontics of Texas, Keller, Texas, USA
| | | | | | - Lauren Allen
- Fort Worth Independent School District, Fort Worth, Texas, USA
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14
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Bhopatkar J, Ikhar A, Nikhade P, Chandak M, Agrawal P. Emerging Paradigms in Internal Root Resorption Management: Harnessing the Power of Bioceramics. Cureus 2023; 15:e45149. [PMID: 37842389 PMCID: PMC10571069 DOI: 10.7759/cureus.45149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 09/13/2023] [Indexed: 10/17/2023] Open
Abstract
Internal root resorption is a pathological activity involving dentin deterioration within the root canal walls. Numerous variables, including traumatic injury, infection, and orthodontic therapy, can trigger this process. Traditional materials such as mineral trioxide aggregate (MTA) have been utilized to treat internal root resorption but have limitations such as tooth discoloration and handling challenges. Bioceramic materials, such as Bio-C Repair, have emerged as possible MTA substitutes. This case study outlines the effective management of idiopathic extensive perforating internal root resorption using a non-surgical laser-assisted approach and the application of Bio-C Repair as an obturation material. The treatment resulted in the resolution of symptoms and the restoration of periapical tissues. Bioceramics, with their unique composition and favorable biological properties, offer the potential for effective tissue repair and provide alternatives to traditional materials in the treatment of internal resorption. The utilization of bioceramics, including Bio-C Repair, holds promise for achieving successful outcomes and preserving natural dentition.
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Affiliation(s)
- Jay Bhopatkar
- Department of Conservative Dentistry and Endodontics, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Anuja Ikhar
- Department of Conservative Dentistry and Endodontics, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Pradnya Nikhade
- Department of Conservative Dentistry and Endodontics, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Manoj Chandak
- Department of Conservative Dentistry and Endodontics, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Paridhi Agrawal
- Department of Conservative Dentistry and Endodontics, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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15
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Bai Y, Niu Y, Qin S, Ma G. A New Biomaterial Derived from Aloe vera-Acemannan from Basic Studies to Clinical Application. Pharmaceutics 2023; 15:1913. [PMID: 37514099 PMCID: PMC10385217 DOI: 10.3390/pharmaceutics15071913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/26/2023] [Accepted: 07/04/2023] [Indexed: 07/30/2023] Open
Abstract
Aloe vera is a kind of herb rich in polysaccharides. Acemannan (AC) is considered to be a natural polysaccharide with good biodegradability and biocompatibility extracted from Aloe vera and has a wide range of applications in the biomedical field due to excellent immunomodulatory, antiviral, antitumor, and tissue regeneration effects. In recent years, clinical case reports on the application of AC as a novel biomedical material in tissue regenerative medicine have emerged; it is mainly used in bone tissue engineering, pulp-dentin complex regeneration engineering, and soft tissue repair, among other operations. In addition, multiple studies have proved that the new composite products formed by the combination of AC and other compounds have excellent biological and physical properties and have broader research prospects. This paper introduces the preparation process, surface structure, and application forms of AC; summarizes the influence of acetyl functional group content in AC on its functions; and provides a detailed review of the functional properties, laboratory studies, clinical cutting-edge applications, and combined applications of AC. Finally, the current application status of AC from basic research to clinical treatment is analyzed and its prospects are discussed.
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Affiliation(s)
- Yingjie Bai
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshunnan Road, Dalian 116044, China
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian 116044, China
| | - Yimeng Niu
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshunnan Road, Dalian 116044, China
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian 116044, China
| | - Shengao Qin
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshunnan Road, Dalian 116044, China
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian 116044, China
| | - Guowu Ma
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshunnan Road, Dalian 116044, China
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian 116044, China
- Department of Stomatology, Stomatological Hospital Affiliated School, Stomatology of Dalian Medical University, NO. 397 Huangpu Road, Shahekou District, Dalian 116086, China
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16
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Küçükkaya Eren S. Clinical applications of calcium silicate-based materials: a narrative review. Aust Dent J 2023; 68 Suppl 1:S96-S109. [PMID: 37885314 DOI: 10.1111/adj.12986] [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] [Accepted: 10/04/2023] [Indexed: 10/28/2023]
Abstract
Calcium silicate-based materials are hydrophilic materials with biocompatibility and bioactivity properties. Despite many advantages, they might present some problems related to discolouration, setting time, manipulation and solubility depending on the composition of the product and the type of clinical application. Calcium silicate-based materials can be evaluated under two types according to their intended use: calcium silicate-based cements (CSCs) and calcium silicate-based sealers (CSSs). CSCs can be used in many endodontic procedures including perforation repair, resorption repair, apical barriers, guided endodontic repair, vital pulp treatment, endodontic surgery, root fractures and root canal filling as a core obturation material. CSSs are available for use with gutta-percha to obturate root canals using cold and warm techniques, including the sealer-based obturation technique. The purpose of this review is to evaluate the available literature on CSCs and CSSs and to provide up-to-date information and recommendations for their clinical applications.
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Affiliation(s)
- S Küçükkaya Eren
- Faculty of Dentistry, Department of Endodontics, Hacettepe University, Ankara, Turkey
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17
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Chun M, Silvestrin T, Savignano R, Roque-Torres GD. Effects of Apical Barriers and Root Filling Materials on Stress Distribution in Immature Teeth: Finite Element Analysis Study. J Endod 2023; 49:575-582. [PMID: 36965767 DOI: 10.1016/j.joen.2023.03.009] [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: 10/31/2022] [Revised: 01/30/2023] [Accepted: 03/17/2023] [Indexed: 03/27/2023]
Abstract
PURPOSE A finite element analysis (FEA) study was performed to determine whether the material of apical barrier used for root apexification and/or the use of canal reinforcement affect the stress distribution in an endodontically treated immature permanent tooth in order to infer in which clinical scenarios a fracture is more likely to occur based on the ultimate tensile strength threshold of dentin. METHODS AND MATERIALS An extracted human immature mandibular premolar was selected as the reference model and scanned by micro-computed tomography (micro-CT). The digital model was segmented and converted to STL (Standard Tessellation Language) using Simpleware Scan-IP and exported in IGES (Initial Graphics Exchange Specification) to Ansys 19. Six experimental models were designed with different combinations of composite, mineral trioxide aggregate (MTA), and Biodentine (BIO). Using FEA, a static 300N load at a 135 angle with respect to the axis of the tooth was applied to each model and Von-Mises stress values (MPa) were measured at the sagittal, apical 8mm, 5mm, 2mm, and 1mm levels. RESULTS In all regions examined, the control (NT model) had lower stress in the root compared to experimental models. At the mid-root level, models with composite, MTA, and BIO reinforcement exhibited lower stresses in the root dentin than those with pulp or gutta-percha. BIO models had equal or greater average Von-Mises stress values than those of MTA models in all regions. Both, MTA and BIO, caused increases in stress of surrounding root dentin, with BIO causing a greater increase than MTA. CONCLUSIONS Stress distribution in immature permanent teeth treated by apexification is affected by the types of materials used. Root dentin's stress was lower when the mid-root canal was reinforced by composite, MTA, or BIO, which provided similar stress reduction to the root dentin. MTA is a more favorable apical barrier material from a mechanical standpoint because it induces less stress on apical root dentin than BIO.
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Affiliation(s)
- Minna Chun
- School of Dentistry, Loma Linda University, Loma Linda, California, United States of America
| | - Tory Silvestrin
- Chair, and Program Director of the Endodontics Department, School of Dentistry, Loma Linda University, Loma Linda, California, United States of America
| | - Roberto Savignano
- Center for Dental Research, School of Dentistry, Loma Linda University, Loma Linda, California, United States of America
| | - Gina Delia Roque-Torres
- Center for Dental Research, School of Dentistry, Loma Linda University, Loma Linda, California, United States of America.
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18
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Öztürk Z, Bal C, Güngörmüş M, Aksoy M. Effects of a mineralization-promoting peptide on the physical and chemical properties of mineral trioxide aggregate. J Mech Behav Biomed Mater 2023; 138:105570. [PMID: 36493613 DOI: 10.1016/j.jmbbm.2022.105570] [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: 09/15/2022] [Revised: 11/10/2022] [Accepted: 11/13/2022] [Indexed: 11/27/2022]
Abstract
Mineral trioxide aggregate (MTA) has been used widely in dentistry due to its sealing ability and biocompatibility. Delayed setting time is one of the major limitations of MTA. Various additives have been studied to further improve the properties of MTA with varied degrees of success. In this study, we have investigated the effect of a calcium phosphate mineralization promoting-peptide (MPP3) on the physical and chemical properties of MTA in comparison with Na2HPO4. Based on the reported effects of MPP3 on calcium-phosphate mineralization reaction, our hypothesis was that MPP3 may also show beneficial effects on the calcium-silicate mineralization system of MTA. Na2HPO4 was used for comparison since its setting accelerant effect on MTA has been well documented. The cements were prepared by mixing with distilled water, 0.40 mM MPP3 solution, 15% Na2HPO4 solution, and a combination of MPP3 and Na2HPO4 solution. Initial and final setting times were measured via Vicat needle. Microhardness values were measured via Vickers indenter at 1,3,7, and 28 days after hydration. Compressive strength after setting was measured via universal testing machine. Morphological and compositional analyses were performed via FESEM imaging, XRD and Raman spectroscopy. The microhardness data was evaluated via repeated-measures ANOVA. Setting time and compressive strength data were evasluated via one-way ANOVA. Initial setting time was reduced to ∼3 min in the Na2HPO4 containing groups but remained at ∼5 min in the control and MPP3 groups. Final setting times were significantly reduced in all groups compared to the control group. The reduction in the final setting times in the Na2HPO4 containing groups were significantly higher compared to the MPP3 group. Microhardness was significantly higher in the MPP3 group at all time points. No statistically significant difference in compressive strength was observed among the groups. FESEM analysis showed presence of ettringite crystals in the MPP3 group, and NaBiO3 crystals in the Na2HPO4 containing groups. XRD analysis showed a broadening of peaks at 2θ = 32° in the Na2HPO4 containing groups, possibly due to presence of NaBiO3. Raman spectroscopy showed statistically higher ettringite content in the MPP3 containing groups. Our findings indicate that MPP3 is a beneficial additive to eliminate some of the drawbacks associated with MTA with no detrimental effects on mechanical properties and without resulting in phases that potentially cause discoloration, such as NaBiO3. We propose that the reduced final setting time and increased microhardness by MPP3 may be associated with the increased ettringite content. Future studies, where wider range of MPP3 concentrations are studied may help elucidate and optimize the beneficial effects of MPP3 observed in this study.
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Affiliation(s)
- Zeynep Öztürk
- Bolu Abant İzzet Baysal University, Dentistry Faculty, Department of Pediatric Dentistry, Bolu, Turkey.
| | - Cenkhan Bal
- Health Sciences University, Gülhane Dentistry Faculty, Department of Pediatric Dentistry, Ankara, Turkey.
| | - Mustafa Güngörmüş
- Ankara Yıldırım Beyazıt University, School of Engineering and Natural Sciences, Department of Biomedical Engineering, Ankara, Turkey; Ankara Yıldırım Beyazıt University, MERLAB Application and Research Center, Ankara, Turkey.
| | - Merve Aksoy
- Health Sciences University, Gülhane Dentistry Faculty, Department of Pediatric Dentistry, Ankara, Turkey.
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In Vitro Comparison of the Push-Out Bond Strength of RetroMTA, OrthoMTA, and ProRoot MTA. JOURNAL OF RESEARCH IN DENTAL AND MAXILLOFACIAL SCIENCES 2023. [DOI: 10.52547/jrdms.8.1.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
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20
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Angerame D, De Biasi M, Lenhardt M, Porrelli D, Bevilacqua L, Generali L, La Rosa GRM, Pedullà E. Root-end resection with or without retrograde obturation after orthograde filling with two techniques: A micro-CT study. AUST ENDOD J 2022; 48:423-430. [PMID: 35665570 DOI: 10.1111/aej.12634] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 12/27/2021] [Accepted: 05/15/2022] [Indexed: 12/14/2022]
Abstract
To evaluate the filling ability of two orthograde obturation techniques followed by the apical resection with or without retrograde obturation through micro-computed tomography (CT). Thirty-two single-rooted permanent teeth were prepared and randomised into four groups (n = 8) according to the orthograde obturation technique (single cone technique [SCT] and mineral trioxide aggregate placement) combined or not with retrograde obturation. The volume of voids (VoV) within the entire endodontic space, the apical 3 mm, and 1 mm after root resection was calculated by micro-CT. Statistical analysis showed no significant difference among the groups regarding the total VoV in all root canals, as well as within the apical 1 mm after root resection. The SCT and apical resection without retrograde filling showed significantly better results in terms of VoV at the apical 3 mm after root resection. Within the study limitations, SCT associated with apical resection without retrograde preparation exhibited a similar or less amount of voids than the other groups.
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Affiliation(s)
- Daniele Angerame
- Clinical Department of Medical Science, Surgery and Health, University of Trieste, Trieste, Italy
| | | | - Massimiliano Lenhardt
- Clinical Department of Medical Science, Surgery and Health, University of Trieste, Trieste, Italy
| | - Davide Porrelli
- Clinical Department of Medical Science, Surgery and Health, University of Trieste, Trieste, Italy
| | - Lorenzo Bevilacqua
- Clinical Department of Medical Science, Surgery and Health, University of Trieste, Trieste, Italy
| | - Luigi Generali
- Endodontic Section, Department of Surgery, Medicine, Dentistry and Morphological Sciences with Transplant Surgery, Oncology and Regenerative Medicine Relevance (CHIMOMO), School of Dentistry, University of Modena and Reggio Emilia, Modena, Italy
| | - Giusy Rita Maria La Rosa
- Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - Eugenio Pedullà
- Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
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21
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Evaluation of physico chemical properties, cell viability and mineralization potential of New Pozzolan (fly Ash)-Based Mineral Trioxide Aggregate cement. J Oral Biol Craniofac Res 2022; 12:847-852. [DOI: 10.1016/j.jobcr.2022.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/13/2022] [Accepted: 09/23/2022] [Indexed: 11/19/2022] Open
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22
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An Updated Review on Properties and Indications of Calcium Silicate-Based Cements in Endodontic Therapy. Int J Dent 2022; 2022:6858088. [PMID: 36349079 PMCID: PMC9637478 DOI: 10.1155/2022/6858088] [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: 08/24/2022] [Accepted: 10/18/2022] [Indexed: 11/29/2022] Open
Abstract
Regarding the common use of calcium silicate cements (CSCs) in root canal therapy, their position in the context of past and present dentistry agents can provide a better understanding of these materials for their further improvement. In this context, the present review article addresses a wide range of recent investigations in the field of CSC-based products and describes details of their composition, properties, and clinical applications. The need for maintaining or reconstructing tooth structure has increased in contemporary endodontic treatment approaches. This research thus discusses the attempts to create comprehensive data collection regarding calcium ion release, bond strength, alkalinizing activity and bioactivity, and the ability to stimulate the formation of hydroxyapatite as a bioactive feature of CSCs. Sealing ability is also highlighted as a predictor for apical and coronal microleakage which is crucial for the long-term prognosis of root canal treatment integrity. Other claimed properties such as radiopacity, porosity, and solubility are also investigated. Extended setting time is also mentioned as a well-known drawback of CSCs. Then, clinical applications of CSCs in vital pulp therapies such as pulpotomy, apexification, and direct pulp capping are reviewed. CSCs have shown their benefits in root perforation treatments and also as root canal sealers and end-filling materials. Nowadays, conventional endodontic treatments are replaced by regenerative therapies to save more dynamic and reliable hard and soft tissues. CSCs play a crucial role in this modern approach. This review article is an attempt to summarize the latest studies on the clinical properties of CSCs to shed light on the future generation of treatments.
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Park EH, Rhee SH, Choi HW, Shon WJ. Biocompatibility and osteogenic potential of mineral trioxide aggregate mixed with hydrophilic synthetic polymer: An in vitro and in vivo study. Dent Mater J 2022; 41:780-786. [PMID: 35768223 DOI: 10.4012/dmj.2022-036] [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: 12/31/2022]
Abstract
This study aimed to investigate in vitro biologic properties of mineral trioxide aggregate (MTA) mixed with 3% PVA (MTA-3% PVA) and in vivo dental pulp responses to direct capping in comparison with MTA mixed with distilled water (MTA-DW). Cell proliferation and osteogenic differentiation in culture of human dental pulp cells (hDPCs), and pH changes were evaluated. Pulps in 24 mandibular premolars of four 9-month-old beagle dogs were mechanically exposed and direct pulp capping was performed. Histological specimens were scored according to the degree of mineralization. MTA-3% PVA showed similar cell proliferation and similar or superior osteogenic differentiation of hDPCs compared with MTA-DW. All specimens were associated with calcified bridge formation and there were no significant differences in mineralization scores between the groups (p>0.05). The results suggested that MTA-3% PVA exhibited favorable biocompatibility and osteogenic differentiation in vitro compared with MTA-DW. Furthermore, both groups demonstrated similar results when used as pulp-capping agents in vivo.
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Affiliation(s)
- Eun Hyun Park
- Department of Conservative Dentistry, Dental Research Institute, School of Dentistry, Seoul National University
| | - Sang-Hoon Rhee
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University
| | - Hae Won Choi
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University.,Department of Orthodontics, The Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University, School of Medicine
| | - Won-Jun Shon
- Department of Conservative Dentistry, Dental Research Institute, School of Dentistry, Seoul National University
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MUTLUAY AT. Does adding accelerators to Mineral Trioxide Aggregate affect the shear bond strength? SELCUK DENTAL JOURNAL 2022; 9:501-508. [DOI: 10.15311/selcukdentj.973299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Amaç: Bu çalışmada, farklı hızlandırıcı ilave edilen Mineral Trioksit Agregat’ın (MTA) kompozite farklı sertleşme sürelerinde makaslama bağlanma dayanımının (MBD) değerlendirilmesi amaçlanmıştır.
Gereç ve Yöntemler: Merkezi boşluklara sahip 120 adet akrilik blok 4 ana gruba ayrıldı. 1. grup (kontrol); sadece MTA, 2, 3 ve 4. grup ise sırasıyla %10 kalsiyum klorür (CaCl2), %23,1 kalsiyum laktat glokonat (CLG) ve %15 disodyum hidrojen fosfat (Na2HPO4) ile karıştırılmış MTA içermektedir. Her grup 2 saat 45 dakika , 24 saat ve 96 saat sertleşme süresine göre 3 alt gruba ayrıldı. Bekleme süreleri tamamlandıktan sonra adeziv sistem (Clearfil SE Bond, Kuraray) ve kompozit rezin (Clearfil Majesty, Kuraray) işlemleri tamamlanan örneklere evrensel test cihazında MBD testi uygulandı. Elde edilen verilerinin karşılaştırmasında, tek yönlü varyans analizi (ANOVA) ve Tukey HSD testleri kullanıldı.
Bulgular: Hızlandırıcısız MTA en yüksek ortalama MBD değeri sergiledi. Hızlandırıcısız MTA, hızlandırıcı olarak CLG ve Na2HPO4 eklenen MTA ile kıyaslandığında aralarındaki fark anlamlı bulundu (p<0.0001). Başlangıç sertleşme süresinde alt gruplar arasında istatistiksel olarak anlamlı farklılık gözlenmedi (p>0,05), diğer sertleşme sürelerinde fark anlamlı bulundu (p<0,05). MTA’ya hızlandırıcı olarak CLG ve Na2HPO4 ilavesinin tüm sürelerde MBD değerlerini azalttığı, CaCl2 ilavesinin ise 96 saatin ardından MBD değerini anlamlı olarak yükselttiği gözlendi.
Sonuç: MTA içerisine hızlandırıcı eklemek MBD değerini düşürmektedir. Ancak MTA’ya hızlandırıcı olarak %10 CaCl2 eklemek 96 saatin ardından yapılacak restoratif işlemlerde pozitif bağlantı sonuçları ortaya çıkarabilir.
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Pushpalatha C, Dhareshwar V, Sowmya SV, Augustine D, Vinothkumar TS, Renugalakshmi A, Shaiban A, Kakti A, Bhandi SH, Dubey A, Rai AV, Patil S. Modified Mineral Trioxide Aggregate—A Versatile Dental Material: An Insight on Applications and Newer Advancements. Front Bioeng Biotechnol 2022; 10:941826. [PMID: 36017346 PMCID: PMC9395930 DOI: 10.3389/fbioe.2022.941826] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/24/2022] [Indexed: 11/13/2022] Open
Abstract
Mineral Trioxide Aggregate (MTA) has been a material of revolution in the field of dentistry since its introduction in the 1990s. It is being extensively used for perforation repairs, apexification, root-end filling, obturation, tooth fracture repair, regenerative procedures, apexogenesis, pulpotomies, and as a pulp-capping material because of its desired features such as biocompatibility, bioactivity, hydrophilicity, sealing ability, and low solubility. Even though its application is wide, it has its own drawbacks that prevent it from reaching its full potential as a comprehensive replacement material, including a long setting time, discoloration, mud-like consistency, and poor handling characteristics. MTA is a material of research interest currently, and many ongoing studies are still in process. In this review, the newer advancements of this versatile material by modification of its physical, chemical, and biological properties, such as change in its setting time, addressing the discoloration issue, inclusion of antimicrobial property, improved strength, regenerative ability, and biocompatibility will be discussed. Hence, it is important to have knowledge of the traditional and newer advancements of MTA to fulfill the shortcomings associated with the material.
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Affiliation(s)
- C. Pushpalatha
- Department of Pedodontics and Preventive Dentistry, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore, India
| | - Vismaya Dhareshwar
- Department of Pedodontics and Preventive Dentistry, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore, India
| | - S. V. Sowmya
- Department of Oral Pathology and Microbiology, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore, India
| | - Dominic Augustine
- Department of Oral Pathology and Microbiology, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore, India
| | - Thilla Sekar Vinothkumar
- Department of Restorative Dental Science, Division of Operative Dentistry, College of Dentistry, Jazan University, Jazan, Saudi Arabia
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - Apathsakayan Renugalakshmi
- Department of Preventive Dental Sciences, Division of Pedodontics, College of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Amal Shaiban
- Department of Endodontics, College of Dentistry, King Khalid University, Abha, Saudi Arabia
| | - Ateet Kakti
- Department of Pediatric Dentistry, Preventive Division, Riyadh Elm University, Riyadh, Saudi Arabia
| | - Shilpa H. Bhandi
- Department of Restorative Dental Science, Division of Operative Dentistry, College of Dentistry, Jazan University, Jazan, Saudi Arabia
- Department of Cariology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| | - Alok Dubey
- Department of Preventive Dental Sciences, Division of Pedodontics, College of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Amulya V. Rai
- Department of Pedodontics and Preventive Dentistry, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore, India
| | - Shankargouda Patil
- Department of Maxillofacial Surgery and Diagnostic Sciences, Division of Oral Pathology, College of Dentistry, Jazan University, Jazan, Saudi Arabia
- Centre of Molecular Medicine and Diagnostics (COMManD), Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
- *Correspondence: Shankargouda Patil, , orcid.org/0000-0001-7246-5497
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Yanık D, Er K, Kuştarci A. Shear bond strength of resin-modified glass ionomer cement bound to mineral trioxide aggregate after various disinfection protocols. AUST ENDOD J 2022; 49:159-164. [PMID: 35679483 DOI: 10.1111/aej.12641] [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: 12/05/2021] [Revised: 02/16/2022] [Accepted: 05/16/2022] [Indexed: 11/28/2022]
Abstract
This study compared the effects of 3 different cavity disinfection protocols (CDP) on the shear bond strength (SBS) of resin-modified glass ionomer cement (RM-GIC) to mineral trioxide aggregate (MTA). One hundred eighty standard holes were prepared and filled with MTA. They then divided into 3 main groups based on the chosen time intervals (15 min, 24 h, and 72 h). Main groups were divided into 3 subgroups based on the CDP [chlorhexidine gluconate (CHX), ozone, laser, and control]. RM-GIC was applied on MTA after CDP for all groups. A universal testing device was then used for test and the data was statistically analysed. CHX showed significantly lower SBS values except ozone and laser than the control (p < 0.05). There were no statistically significant differences among the time intervals. As a result, CHX decreased the bond strength between the MTA and RM-GIC while ozone and laser had no negative effect.
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Affiliation(s)
- Deniz Yanık
- Department of Endodontics, Faculty of Dentistry, Antalya Bilim University, Antalya, Turkey
| | - Kürşat Er
- Department of Endodontics, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| | - Alper Kuştarci
- Department of Endodontics, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
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Morphological and Chemical Analysis of Different Types of Calcium Silicate-Based Cements. Int J Dent 2022; 2022:6480047. [PMID: 35633889 PMCID: PMC9135564 DOI: 10.1155/2022/6480047] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 03/16/2022] [Accepted: 04/23/2022] [Indexed: 11/18/2022] Open
Abstract
Objectives. Particle size and shape can influence the properties of materials. However, to improve the physicochemical and biological properties of mineral trioxide aggregate (MTA), silicate-based hydraulic cements were introduced. This study aimed to evaluate and compare the major constituents and crystalline structures along with the surface morphology of different types of calcium silicate-based cement (CSC). Materials and Methods. Six different types of CSC (white Portland cement, white ProRoot MTA, white MTA Angelus, Biodentine, and Endosequence, both putty and paste) were used in this study. Five samples of each material were analyzed in both uncured and cured cement using scanning electron microscopy/energy-dispersive X-ray (SEM/EDX), X-ray diffraction (XRD), and Fourier transform-infrared spectroscopy (FTIR). Results. SEM analysis showed that the surfaces of all materials consisted of particle sizes ranging from 0.194 μm to approximately 51.82 μm. The basic elements found in both uncured and cured cement of all tested materials using EDX were carbon, calcium, silicon, and oxygen. A difference was observed in the presence or absence of magnesium, aluminum, bismuth, zirconium, and tantalum. XRD showed that all tested materials were composed mainly of tricalcium silicate and dicalcium silicate, which are the main components of Portland cement. FTIR analysis showed aromatic rings, phosphine PH, alkyl halides, and alcohol O-H groups in all tested materials but at different wavenumbers. Conclusions. The different types of CSCs tested in this study were primarily modified types of Portland cement with the addition of radiopacifiers. ProRoot MTA and MTA Angelus contained bismuth oxide, Biodentine contains zirconium oxide, whereas Endosequence root repair materials (both putty and paste) contained zirconium oxide and tantalum oxide. Endosequence root repair materials showed smaller particle sizes than the other groups. White PC had the most irregular and large particle sizes. CSC had a smaller particle size, except for MTA Angelus. Clinical Relevance. The composition of CSC has a direct influence on the properties of these cements, which may affect the clinical outcome of the treatment.
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Development and Analysis of a Hydroxyapatite Supplemented Calcium Silicate Cement for Endodontic Treatment. MATERIALS 2022; 15:ma15031176. [PMID: 35161119 PMCID: PMC8839244 DOI: 10.3390/ma15031176] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/25/2022] [Accepted: 02/01/2022] [Indexed: 12/03/2022]
Abstract
Aim: To develop an endodontic cement using bovine bone-derived hydroxyapatite (BHA), Portland cement (PC), and a radiopacifier. Methods: BHA was manufactured from waste bovine bone and milled to form a powder. The cements were developed by the addition of BHA (10%/20%/30%/40% wt), 35% wt, zirconium oxide (radiopacifier) to Portland cement (PC). A 10% nanohydroxyapatite (NHA) cement containing PC and a radiopacifier, and a cement containing PC (PC65) and a radiopacifier were also manufactured as controls. The cements were characterised to evaluate their compressive strength, setting time, radiopacity, solubility, and pH. The biocompatibility was assessed using Saos-2 cells where ProRoot MTA acted as the control. Compressive strength, solubility and pH were evaluated over a 4-week curing period. Results: The compressive strength (CS) of all cements increased with the extended curing times, with a significant CS increase in all groups from day 1 to day 28. The BHA 10% exhibited significantly higher CS compared with the other cements at all time points investigated. The BHA 10% and 20% groups exhibited significantly longer setting times than BHA 30%, 40% and PC65. The addition of ZrO2 in concentrations above 20% wt and Ta2O5 at 30% wt resulted in a radiopacity equal to, or exceeding that of, ProRoot MTA. The experimental cements exhibited relatively low cytotoxicity, solubility and an alkaline pH. Conclusions: The addition of 10% and 20% BHA to an experimental PC-based cement containing 35% ZrO2 improved the material’s mechanical strength while enabling similar radiopacity and biocompatibility to ProRoot MTA. Although BHA is a cost-effective, biomimetic additive that can improve the properties of calcium silicate endodontic cements, further studies are now warranted to determine its clinical potential.
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Trivedi S, Hiremath H, Solanki A, Verma D. Evaluation of shear bond strength of e-mineral trioxide aggregate and biodentine with glass ionomer cement: An in vitro study. ENDODONTOLOGY 2022. [DOI: 10.4103/endo.endo_17_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Mody A, Arora R, Chauhan P, Gautam K, Taneja P, Marya CM. A Scanning Electron Microscopic Study on Effect of Blood and Artificial Salivary Contamination on Marginal Adaptation of Mineral Trioxide Aggregate, When Used as a Retrograde Filling Material: An In Vitro Study. Int J Clin Pediatr Dent 2021; 14:674-680. [PMID: 34934282 PMCID: PMC8645609 DOI: 10.5005/jp-journals-10005-2012] [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] [Indexed: 11/23/2022] Open
Abstract
Aim and objective The present study was conducted to evaluate the marginal adaptability of mineral trioxide aggregate (MTA) as a root-end filling material when manipulated using two different IV fluids intended for pediatric usage; in the presence of blood and salivary contamination. Materials and methods Sixty single-rooted teeth were selected. Conventional endodontic root canal preparation was performed on all specimens followed by root-end resection and retrograde cavity preparation. The roots were randomly divided into two groups (n = 30). In the specimens of group I, fresh blood was used as a contaminant and in group II artificial saliva was used as a contaminant. In both groups, MTA (e-MTA, Kids-e-Dental®) manipulated using either Ringer's lactate IV fluid (n = 15) or Tetraspan IV fluid (n = 15) was used for root-end filling in blood or artificial saliva-coated retrocavities. Furthermore, these roots were placed in beakers pooled with fresh phlebotomized blood or artificial saliva. After incubating for 48 hours, the roots were divided longitudinally to expose the retrofilled cavities and were then sputter-coated with gold-platinum dust. To assess the marginal adaptation of MTA to radicular dentin "maximum gap width" and "gap perimeter" were measured in images obtained from scanning electron microscopy of root specimens. SPSS 21 was employed for statistical analysis at (p < 0.05). Mann-Whitney U test and ANOVA were used for analyzing the data obtained. Results The gap width was more among samples exposed to blood (p < 0.05) than artificial saliva. No significant difference was reported in the gap perimeter when cavities were filled with MTA mixed with either IV fluids (p > 0.05). Conclusion Exposure to blood during setting had a negative effect on gap width when retrocavities were filled with MTA using Tetraspan. No effect was seen on the arch perimeter in retrocavities filled with MTA mixed with Ringer's lactate or Tetraspan. Clinical significance For avoiding failure, it is critical to select a biocompatible root-end filling material with high sealing ability. Hence, by doing the same, the clinical situation can be simulated. How to cite this article Mody A, Arora R, Chauhan P, et al. A Scanning Electron Microscopic Study on Effect of Blood and Artificial Salivary Contamination on Marginal Adaptation of Mineral Trioxide Aggregate, When Used as a Retrograde Filling Material: An In Vitro Study. Int J Clin Pediatr Dent 2021;14(5):674-680.
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Affiliation(s)
- Anuja Mody
- Department of Pediatric and Preventive Dentistry, Private Practice, Prabhadevi, Worli, Mumbai, Maharashtra, India
| | - Ruchi Arora
- Department of Pediatric and Preventive Dentistry, Darshan Dayal Dental College and Hospital, Loyara, Udaipur, Rajasthan, India
| | - Prabhav Chauhan
- Department of Pediatric and Preventive Dentistry, Private Practice, Greater Noida, Uttar Pradesh, India
| | - Kompal Gautam
- Department of Periodontology and Implantology, Siyaram Hospital, Jaipur, Rajasthan, India
| | - Pratibha Taneja
- Department of Public Health Dentistry, Private Practice, Gurugram, Haryana, India
| | - C M Marya
- Department of Public Health Dentistry, Sudha Rustagi College of Dental Science and Research, Faridabad, Haryana, India
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Lim M, Song M, Hong CU, Cho YB. The biocompatibility and mineralization potential of mineral trioxide aggregate containing calcium fluoride-An in vitro study. J Dent Sci 2021; 16:1080-1086. [PMID: 34484573 PMCID: PMC8403900 DOI: 10.1016/j.jds.2021.04.019] [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: 04/12/2021] [Revised: 04/29/2021] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND/PURPOSE MTA is used to induce hard tissue regeneration in various procedures. This study evaluated the biocompatibility and mineralization potential of mineral trioxide aggregate (MTA) containing calcium fluoride (CaF2). To verify if the change of components affected physical properties, the setting time, solubility, and surface roughness were measured. MATERIALS AND METHODS Human dental pulp cells (HDPCs) were treated with powder and set MTA containing CaF2 (0, 1, 5, and 10 wt %). The proliferation of HDPCs was investigated using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The mineralization potential of HDPCs was investigated with the relative gene expression of alkaline phosphatase (ALP), collagen type I (ColI), osteocalcin (OCN), and runt-related transcription factor 2 (Runx2) using real-time reverse transcription polymerase chain reaction (RT-PCR). For investigating the physical properties, setting time and solubility were tested. Surface profiles of material were analyzed by a non-contact surface profiler and a scanning electron microscope (SEM). RESULTS MTA-5% CaF2 mixtures increased the proliferation and the mineralization-related gene expression of HDPCs to a greater degree than pure MTA. The addition of CaF2 to MTA delayed the setting, but the difference was only significant in the MTA-10% CaF2. Solubility and surface roughness was not altered. CONCLUSION The addition of more than 5% CaF2 can be considered to increase the regeneration potential of pulp cells without adverse effects on physical property.
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Affiliation(s)
- Miyoung Lim
- Department of Conservative Dentistry, Dankook University College of Dentistry Jukjeon Hospital, Yongin, South Korea
| | - Minju Song
- Department of Conservative Dentistry, College of Dentistry, Dankook University, Cheonan, South Korea
| | - Chan-Ui Hong
- Department of Conservative Dentistry, College of Dentistry, Dankook University, Cheonan, South Korea
| | - Yong-bum Cho
- Department of Conservative Dentistry, College of Dentistry, Dankook University, Cheonan, South Korea
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Fabrication and Characterization of a Nanofast Cement for Dental Restorations. BIOMED RESEARCH INTERNATIONAL 2021; 2021:7343147. [PMID: 34540997 PMCID: PMC8448608 DOI: 10.1155/2021/7343147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/21/2021] [Indexed: 11/18/2022]
Abstract
This study was aimed at fabricating and evaluating the physical and bioproperties of nanofast cement (NFC) as a replacement of the MTA. The cement particles were decreased in nanoscale, and zirconium oxide was used as a radiopacifier. The setting time and radiopacity were investigated according to ISO recommendations. Analysis of color, bioactivity, and cytotoxicity was performed using spectroscopy, simulated body fluid (SBF), and MTT assay. The setting time of cement pastes significantly dropped from 65 to 15 min when the particle sizes decreased from 2723 nm to 322 nm. Nanoparticles provide large surface areas and nucleation sites and thereby a higher hydration rate, so they reduced the setting time. Based on the resulting spectroscopy, the specimens did not exhibit clinically noticeable discoloration. Resistance to discoloration may be due to the resistance of zirconium oxide to decomposition. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and infrared spectroscopy (FTIR) examinations of the immersed SBF samples showed apatite formation that was a reason for its suitable bioactivity. The results of cell culture revealed that NFC is nontoxic. This study showed that NFC was more beneficial than MTA in dental restorations.
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Investigation of characteristics as endodontic sealer of novel experimental elastin-like polypeptide-based mineral trioxide aggregate. Sci Rep 2021; 11:10537. [PMID: 34006881 PMCID: PMC8131355 DOI: 10.1038/s41598-021-90033-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 04/29/2021] [Indexed: 01/11/2023] Open
Abstract
Although mineral trioxide aggregates (MTA) have been adopted as an endodontic sealer because of excellent sealing effect and bioactive property and been modified with improvement of its characteristics, the developed MTA sealers have not yet satisfied all the ideal requirements of endodontic sealers. The aim of this study was to assess the characteristics of elastin-like polypeptide (ELP)-incorporated MTA for use as an endodontic sealer and compare them with those of commercial MTA sealers. Two commercial MTA sealers and three experimental ELP-incorporated MTA sealers with 0.3, 0.4, and 0.5 liquid/powder (L/P) ratio for 10 wt% ELP liquid were evaluated. The push-out bond strength, flow rate, sealer penetrability and wash-out resistance were tested and the sealer-dentin interface was observed using a scanning electron microscope (SEM). Our study revealed the ELP-incorporated MTA sealer, especially in 0.4 L/P ratio, exhibited the higher push-out bond strength and flow rate (P < 0.05), and equal or superior sealer penetration and remarkable wash-out resistance compared to commercial MTA sealers. The groups of ELP-based experimental sealers also exhibited more intimate contact with dentin compared to the commercial MTA sealers. Our research will suggest the possible adoption of the ELP-incorporated MTA as endodontic sealer for clinical use.
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Toubes KSD, Tonelli SQ, Girelli CFM, Azevedo CGDS, Thompson ACT, Nunes E, Silveira FF. Bio-C Repair - A New Bioceramic Material for Root Perforation Management: Two Case Reports. Braz Dent J 2021; 32:104-110. [PMID: 33913996 DOI: 10.1590/0103-6440202103568] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 11/30/2020] [Indexed: 11/22/2022] Open
Abstract
These case reports aimed to describe the management of lateral perforation in the middle cervical third of the root in two maxillary incisors with pulp canal calcification using Bio-C Repair, with safe and viable clinical treatment strategies. Digital radiographic exams were obtained with different angles and analyzed using different filters. Cone-beam computed tomography (CBCT) images were requested to show the actual position of the canal, location of the perforation, and guide the strategic planning of the case. Subsequently, cavity access was prepared with the aid of dental operating microscopy. After perforation was identified, granulation tissue was removed and the original canal was identified and then dressed with calcium hydroxide. In the second visit, the perforation was filled with Bio-C Repair and the canal system filled with gutta-percha points and a root canal sealer (Bio-C Sealer). The teeth were restored with glass fiber post, 4 mm beyond the perforation level, and provisory crowns. Both teeth treated as described above were functional and asymptomatic with a 1-year clinical and radiographic assessment. The Bio-C Repair is suggested as a new cement option for the management of lateral canal perforations, with effective results as observed after a one-year follow-up.
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Affiliation(s)
- Kênia Soares de Toubes
- Department of Dentistry, PUC Minas - Pontifícia Universidade Católica de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Stephanie Quadros Tonelli
- Department of Dentistry, PUC Minas - Pontifícia Universidade Católica de Minas Gerais, Belo Horizonte, MG, Brazil
| | | | | | | | - Eduardo Nunes
- Department of Dentistry, PUC Minas - Pontifícia Universidade Católica de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Frank Ferreira Silveira
- Department of Dentistry, PUC Minas - Pontifícia Universidade Católica de Minas Gerais, Belo Horizonte, MG, Brazil
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Kang TY, Choi JW, Seo KJ, Kim KM, Kwon JS. Physical, Chemical, Mechanical, and Biological Properties of Four Different Commercial Root-End Filling Materials: A Comparative Study. MATERIALS 2021; 14:ma14071693. [PMID: 33808262 PMCID: PMC8036496 DOI: 10.3390/ma14071693] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 11/16/2022]
Abstract
Commercial mineral trioxide aggregate (MTA) materials such as Endocem MTA (EC), Dia-Root Bio MTA (DR), RetroMTA (RM), and ProRoot MTA (PR) are increasingly used as root-end filling materials. The aim of this study was to assess and compare the physicochemical and mechanical properties and cytotoxicity of these MTAs. The film thicknesses of EC and DR were considerably less than that of PR; however, RM’s film thickness was greater than that of PR. In addition, the setting times of EC, DR, and RM were shorter than that of PR (p < 0.05). The solubility was not significantly different among all groups. The three relatively new MTA groups (EC, DR, and RM) exhibited a significant difference in pH variation and calcium ion release relative to the PR group (p < 0.05). The radiopacity of the three new MTAs was considerably less than that of PR. The mechanical strength of RM was not significantly different from that of PR (p > 0.05); however, the EC and DR groups were not as strong as PR (p < 0.05). All MTA groups revealed cytocompatibility. In conclusion, the results of this study confirmed that EC, RM, DR, and PR exhibit clinically acceptable physicochemical and mechanical properties and cell cytotoxicity.
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Affiliation(s)
- Tae-Yun Kang
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul 03722, Korea; (T.-Y.K.); (J.-W.C.); (K.-J.S.); (K.-M.K.)
| | - Ji-Won Choi
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul 03722, Korea; (T.-Y.K.); (J.-W.C.); (K.-J.S.); (K.-M.K.)
- BK21 FOUR Project, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Kyoung-Jin Seo
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul 03722, Korea; (T.-Y.K.); (J.-W.C.); (K.-J.S.); (K.-M.K.)
- BK21 FOUR Project, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Kwang-Mahn Kim
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul 03722, Korea; (T.-Y.K.); (J.-W.C.); (K.-J.S.); (K.-M.K.)
- BK21 FOUR Project, Yonsei University College of Dentistry, Seoul 03722, Korea
| | - Jae-Sung Kwon
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul 03722, Korea; (T.-Y.K.); (J.-W.C.); (K.-J.S.); (K.-M.K.)
- BK21 FOUR Project, Yonsei University College of Dentistry, Seoul 03722, Korea
- Correspondence: ; Tel.: +82-2-2228-3081
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Kang CM, Seong S, Song JS, Shin Y. The Role of Hydraulic Silicate Cements on Long-Term Properties and Biocompatibility of Partial Pulpotomy in Permanent Teeth. MATERIALS 2021; 14:ma14020305. [PMID: 33435588 PMCID: PMC7826652 DOI: 10.3390/ma14020305] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/06/2021] [Accepted: 01/06/2021] [Indexed: 11/16/2022]
Abstract
The use of hydraulic silicate cements (HSCs) for vital pulp therapy has been found to release calcium and hydroxyl ions promoting pulp tissue healing and mineralized tissue formation. The present study investigated whether HSCs such as mineral trioxide aggregate (MTA) affect their biological and antimicrobial properties when used as long-term pulp protection materials. The effect of variables on treatment outcomes of three HSCs (ProRoot MTA, OrthoMTA, and RetroMTA) was evaluated clinically and radiographically over a 48–78 month follow-up period. Survival analysis was performed using Kaplan–Meier survival curves. Fisher’s exact test and Cox regression analysis were used to determine hazard ratios of clinical variables. The overall success rate of MTA partial pulpotomy was 89.3%; Cumulative success rates of the three HSCs were not statistically different when analyzed by Cox proportional hazard regression analysis. None of the investigated clinical variables affected success rates significantly. These HSCs showed favorable biocompatibility and antimicrobial properties in partial pulpotomy of permanent teeth in long-term follow-up, with no statistical differences between clinical factors.
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Affiliation(s)
- Chung-Min Kang
- Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea; (C.-M.K.); (J.S.S.)
| | - Saemi Seong
- Department of Conservative Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea;
| | - Je Seon Song
- Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea; (C.-M.K.); (J.S.S.)
| | - Yooseok Shin
- Department of Conservative Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea;
- Correspondence: ; Tel.: +82-2-2228-3149; Fax: +82-2-313-7575
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Kapralos V, Rukke HV, Ørstavik D, Koutroulis A, Camilleri J, Sunde PT. Antimicrobial and physicochemical characterization of endodontic sealers after exposure to chlorhexidine digluconate. Dent Mater 2020; 37:249-263. [PMID: 33293036 DOI: 10.1016/j.dental.2020.11.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 10/20/2020] [Accepted: 11/18/2020] [Indexed: 01/12/2023]
Abstract
OBJECTIVES Assess the antibacterial, physical and chemical properties of AH Plus, BioRoot RCS and Pulp Canal Sealer (PCS) in contact with 2% chlorhexidine digluconate (CHX) used as final irrigant prior to root canal obturation. METHODS The antimicrobial properties were investigated by direct contact tests for planktonic and biofilm growth of E. faecalis, S. mutans, S.epidermidis and S.aureus in vitro. The setting time, wettability, microhardness and surface roughness were also assessed. The sealers were studied in no contact, 1-minute (short-term) and continuous contact (long-term) with CHX. Chemical characterization of sealers was performed by scanning electron microscopy, X-ray diffraction analysis and Fourier-transform infrared spectroscopy after CHX or saline used as the last irrigant in an ex vivo tooth model and in endo training blocks. RESULTS CHX increased the antibacterial activity of all the sealers investigated against planktonic bacteria and biofilms with PCS exerting the highest antimicrobial activity with and without the presence of CHX. The setting of AH Plus and BioRoot RCS was retarded, while for PCS accelerated in the presence of CHX. AH Plus and PCS were more hydrophilic after contact with CHX, whilst BioRoot RCS was hydrophobic in a time-dependent manner. The microhardness of sealers was compromised and the surface roughness increased after CHX exposure for AH Plus and BioRoot RCS, and decreased for PCS. CHX did not affect the sealers' chemistry, but PCS that exhibited two extra phases. SIGNIFICANCE CHX improved the antibacterial efficacy of endodontic sealers but further evidence is needed to confirm its suitability as a final irrigant prior to root canal obturation.
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Affiliation(s)
- Vasileios Kapralos
- Section of Endodontics, Institute of Clinical Dentistry, Faculty of Dentistry, University of Oslo, Geitmyrsveien 71, 0455, Oslo, Norway.
| | - Håkon Valen Rukke
- Nordic Institute of Dental Materials (NIOM), Sognsveien 70 A, 0855 Oslo, Norway.
| | - Dag Ørstavik
- Section of Endodontics, Institute of Clinical Dentistry, Faculty of Dentistry, University of Oslo, Geitmyrsveien 71, 0455, Oslo, Norway.
| | - Andreas Koutroulis
- Section of Endodontics, Institute of Clinical Dentistry, Faculty of Dentistry, University of Oslo, Geitmyrsveien 71, 0455, Oslo, Norway.
| | - Josette Camilleri
- School of Dentistry, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
| | - Pia Titterud Sunde
- Section of Endodontics, Institute of Clinical Dentistry, Faculty of Dentistry, University of Oslo, Geitmyrsveien 71, 0455, Oslo, Norway.
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Guo J, Wang L, Fan K, Yang B. An efficient model for predicting setting time of cement based on broad learning system. Appl Soft Comput 2020. [DOI: 10.1016/j.asoc.2020.106698] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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EDAX and FTIR Characterization and Setting Time of an Experimental Nanoparticle Incorporated Root-end Filling Material. E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY 2020. [DOI: 10.1380/ejssnt.2020.289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Teixeira CDS, Wasielewsky JC, Dos Santos GS, Bernardi A, Bortoluzzi EA, Garcia LDFR. Effect of the addition of nanoparticles of CaCO 3 and different water-to-powder ratios on the physicochemical properties of white Portland cement. Microsc Res Tech 2020; 84:592-601. [PMID: 33047854 DOI: 10.1002/jemt.23617] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/23/2020] [Accepted: 09/29/2020] [Indexed: 11/09/2022]
Abstract
The addition of calcium carbonate nanoparticles (nano-CaCO3 ) accelerates the hydration of Portland cement improving its mechanical properties. Conversely, nano-CaCO3 addition leads to reduction in the water required during initial PC hydration. Therefore, the use of a correct water-to-powder ratio is fundamental for manipulating this hydraulic cement. This study evaluated the effect of nano-CaCO3 addition and different water-to-powder ratios on the physicochemical properties of white Portland cement (WPC). WPC was associated to different concentrations of nano-CaCO3 , and the following experimental groups were created: G1a (no nano-CaCO3 ); G2a (0.5% nano-CaCO3 ), G3a (1% nano-CaCO3 ), G4a (2% nano-CaCO3 ), and G5a (5% nano-CaCO3 ). The setting-time (ST), compressive strength (CS), dimensional change (DC), solubility (S), and pH were assessed (24 hr and 30 days). Next, WPC + 5% nano-CaCO3 was manipulated varying the water-to-powder ratio: G1b (WPC/0.33 ml); G2b (WPC/nano-CaCO3 /0.33 ml); G3b (WPC/0.29 ml); G4b (WPC/nano-CaCO3 /0.29 ml); G5b (WPC/0.26 ml); and G6b (WPC/nano-CaCO3 /0.26 ml). The tests were repeated. The data analysis (2-way ANOVA and Tukey test, α = 5%) demonstrated that ST was shorter for samples containing nano-CaCO3 (p < .05). Reduction in CS was observed for all groups at 30 days, except G5a, G2b, and G6b (p < .05). DC and S had no statistical difference among groups (p > .05) independently of nano-CaCO3 water-to-powder ratio. After 30 days, there was significant reduction in pH for G3a and G6b (p < .05). The different concentrations of nano-CaCO3 and water-to-powder ratios affected the physicochemical properties of WPC, especially the setting-time and compressive strength.
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Affiliation(s)
- Cleonice da Silveira Teixeira
- Department of Dentistry, Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Jessica Coelho Wasielewsky
- Department of Dentistry, Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Giovanna Slongo Dos Santos
- Department of Dentistry, Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Anarela Bernardi
- Department of Dentistry, Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Eduardo Antunes Bortoluzzi
- Department of Dentistry, Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Lucas da Fonseca Roberti Garcia
- Department of Dentistry, Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
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Ozkurt-Kayahan Z, Turgut B, Akin H, Kayahan MB, Kazazoglu E. A 3D finite element analysis of stress distribution on different thicknesses of mineral trioxide aggregate applied on various sizes of pulp perforation. Clin Oral Investig 2020; 24:3477-3483. [PMID: 32333173 DOI: 10.1007/s00784-020-03218-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 01/20/2020] [Indexed: 12/17/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate the stress distribution on different thicknesses of mineral trioxide aggregate (MTA) placed on various widths of pulp perforations during the condensation of the composite resin material. MATERIALS AND METHODS The mandibular molar tooth was modeled by COSMOSWorks program (SolidWorks, Waltham, MA). Three finite elemental analysis models representing 3 different dimensions of pulp perforations, 1, 2, and 3 mm in diameter, were created. The perforation area was assumed as filled with MTA with different thicknesses, 1, 2, and 3 mm for each pulp perforation width, creating a total of 9 different models. Then, a composite resin material was layered on MTA for each model. A 66.7 N load was applied and an engineering simulation program (ANSYS, Canonsburg, US) was used for the analysis. Results were presented considering von Mises stress criteria. RESULTS As MTA thickness increased, the stress values recorded within the area between pulp and MTA decreased. Strain was decreased when the thickness of MTA increased. CONCLUSIONS Stresses at MTA-pulp interface and strain on MTA decreased with the increase in MTA thickness. CLINICAL RELEVANCE In clinical practice, when MTA is required for pulp capping, using a thick layer of the material seems to be a better option in order to reduce the stress under forces of hand condensation of overlying restorative materials.
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Affiliation(s)
- Zeynep Ozkurt-Kayahan
- Department of Prosthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey.
| | - B Turgut
- Department of Mechanical Engineering, Faculty of Natural Sciences and Engineering, Gaziosmanpasa University, Tokat, Turkey
| | - H Akin
- Department of Prosthodontics, Faculty of Dentistry, Sakarya University, Sakarya, Turkey
| | - M B Kayahan
- Department of Endodontics, Faculty of Dentistry, Okan University, Istanbul, Turkey
| | - E Kazazoglu
- Department of Prosthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey
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Evaluation of Mechanical Activation and Chemical Synthesis for Particle Size Modification of White Mineral Trioxide Aggregate. Eur Endod J 2020; 5:128-133. [PMID: 32766523 PMCID: PMC7398986 DOI: 10.14744/eej.2020.84803] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 04/06/2020] [Indexed: 11/20/2022] Open
Abstract
Objective Initial setting time is one of the most important properties of calcium silicate cements (CSCs) such as white mineral trioxide aggregate (WMTA). This study aimed to evaluate the effect of two methods used to reduce the particle size of WMTA, mechanical activation and chemical synthesis. Methods WMTA without bismuth oxide (WMTA-B) was provided and divided into four groups (n=5) including: WMTA-B, WMTA-B+10 min milling, WMTA-B+30 min milling, and sol-gel. In groups 2 and 3, the milling was performed by using tungsten carbide balls in a ratio 1:15 (w/w) and a vibration frequency of 30 Hz together with absolute ethanol. For the fourth group, polyethylene glycol (PEG), calcium acetate (Ca(C2H3O2)2), SiO2, and aluminum oxide (Al2O3) were used for the sol-gel process. After preparation, sample powders were mixed with distilled water and placed in cylindrical molds, covered with water-moistened gauze, and incubated at 37°C for 24 hours. The Vicat needle test analyzed the initial setting time. Data were analyzed by ANOVA and Tukey tests at a significance level of P<0.05. The correlation between particle size and setting time was determined. Results Initial setting time of the sol-gel and WMTA-B+30 min milling was significantly lower than in the other two groups (P<0.05). A significant correlation was noticed between particle size and initial setting time (P<0.05). Conclusion Sol-gel process introduces a promising alternative strategy for the reduction of initial setting time of CSC materials. While both methods increased surface area, mechanical activation was not as successful in reducing surface area and initial setting time as effectively as the sol-gel process.
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Zafar MS, Amin F, Fareed MA, Ghabbani H, Riaz S, Khurshid Z, Kumar N. Biomimetic Aspects of Restorative Dentistry Biomaterials. Biomimetics (Basel) 2020; 5:E34. [PMID: 32679703 PMCID: PMC7557867 DOI: 10.3390/biomimetics5030034] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 07/08/2020] [Accepted: 07/10/2020] [Indexed: 12/15/2022] Open
Abstract
Biomimetic has emerged as a multi-disciplinary science in several biomedical subjects in recent decades, including biomaterials and dentistry. In restorative dentistry, biomimetic approaches have been applied for a range of applications, such as restoring tooth defects using bioinspired peptides to achieve remineralization, bioactive and biomimetic biomaterials, and tissue engineering for regeneration. Advancements in the modern adhesive restorative materials, understanding of biomaterial-tissue interaction at the nano and microscale further enhanced the restorative materials' properties (such as color, morphology, and strength) to mimic natural teeth. In addition, the tissue-engineering approaches resulted in regeneration of lost or damaged dental tissues mimicking their natural counterpart. The aim of the present article is to review various biomimetic approaches used to replace lost or damaged dental tissues using restorative biomaterials and tissue-engineering techniques. In addition, tooth structure, and various biomimetic properties of dental restorative materials and tissue-engineering scaffold materials, are discussed.
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Affiliation(s)
- Muhammad Sohail Zafar
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah, Al Munawwarah 41311, Saudi Arabia;
- Department of Dental Materials, Islamic International Dental College, Riphah International University, Islamabad 44000, Pakistan
| | - Faiza Amin
- Science of Dental Materials Department, Dow Dental College, Dow University of Health Sciences, Karachi 74200, Pakistan;
| | - Muhmmad Amber Fareed
- Adult Restorative Dentistry, Dental Biomaterials and Prosthodontics Oman Dental College, Muscat 116, Sultanate of Oman;
| | - Hani Ghabbani
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah, Al Munawwarah 41311, Saudi Arabia;
| | - Samiya Riaz
- School of Dental Sciences, Universiti Sains Malaysia Health Campus, Kubang Kerian 16150, Kelantan, Malaysia;
| | - Zohaib Khurshid
- Department of Prosthodontics and Dental Implantology, College of Dentistry, King Faisal University, Al-Ahsa 31982, Saudia Arabia;
| | - Naresh Kumar
- Department of Science of Dental Materials, Dow University of Health Sciences, Karachi 74200, Pakistan;
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Acemannan Used as an Implantable Biomaterial for Vital Pulp Therapy of Immature Permanent Teeth Induced Continued Root Formation. Pharmaceutics 2020; 12:pharmaceutics12070644. [PMID: 32650533 PMCID: PMC7407100 DOI: 10.3390/pharmaceutics12070644] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/24/2020] [Accepted: 07/03/2020] [Indexed: 01/07/2023] Open
Abstract
Direct pulp-capping, a vital pulp therapy, is used to protect and preserve pulp vitality by applying a biomaterial on the pulp exposure site. Acemannan, a polysaccharide extracted from Aloe vera, induces osteodentin-bridge formation to cover the exposure site in vivo. We evaluated the effect of acemannan sponges on partial pulpotomized permanent teeth with caries or accident-induced pulp exposure (n = 50). After removing infected dentin and inflamed pulp tissue, the teeth were randomly divided into acemannan or control (mineral trioxide aggregate (MTA) groups (n = 25). The teeth were examined immediately after treatment (baseline) and at 6- and 12-month follow-ups for clinical and cone beam computed tomography (CBCT) examination. The three-dimensional tooth length and root apex area were simulated to determine treatment success. We found that the overall success rate in the acemannan and MTA groups from baseline to 12-month follow-up was 90.91% and 95.65%, respectively, with no significant difference between the two groups (p > 0.05). In the success teeth in both groups, the root length increased, and the apex area significantly decreased (p < 0.05), indicating continued root formation. Our results suggest that acemannan is a promising low-cost biomaterial for partial pulpotomy treatment for immature permanent teeth requiring vital pulp therapy.
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Huang CS, Hsieh SC, Teng NC, Lee WF, Negi P, Belem WF, Wu HC, Yang JC. A Silk Fibroin Based Hydration Accelerator for Root Canal Filling Materials. Polymers (Basel) 2020; 12:E994. [PMID: 32344691 PMCID: PMC7240371 DOI: 10.3390/polym12040994] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/17/2020] [Accepted: 04/22/2020] [Indexed: 12/14/2022] Open
Abstract
Mineral trioxide aggregate (MTA) is widely used in various dental endodontic applications such as root-end filling, furcal perforation repair, and vital pulp therapy. In spite of many attempts to improve handling properties and reduce the discoloration of MTA, the ideal root canal filling material has yet to be fully developed. The objective of this study was to investigate the setting time, mechanical properties, and biocompatibility of MTA set by a silk fibroin solution. A 5 wt% silk fibroin (SF) solution (a novel hydration accelerant) was used to set SavDen® MTA and ProRoot® white MTA (WMTA). Changes in setting time, diametral tensile strength (DTS), material crystallization, in vitro cell viability, and cell morphology were assessed by Vicat needle measurement, a universal testing machine, scanning electron microscopy (SEM), and WST-1 assay, respectively. The initial setting time of ProRoot® MTA and SavDen® MTA experienced a drastic decrease of 83.9% and 42.1% when deionized water was replaced by 5 wt% SF solution as the liquid phase. The DTS of SavDen® MTA showed a significant increase after set by the SF solution in 24 h. A human osteoblast-like cell (MG-63)-based WST-1 assay revealed that both ProRoot® MTA and SavDen® MTA hydrated using SF solution did not significantly differ (p > 0.05) in cell viability. MG-63 cells with pseudopodia attachments and nuclear protrusions represent a healthier and more adherent status on the surface of MTA when set with SF solution. The results suggest that the 5 wt% SF solution may be used as an alternative hydration accelerant for MTA in endodontic applications.
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Affiliation(s)
- Ching-Shuan Huang
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110-31, Taiwan; (C.-S.H.); (S.-C.H.); (N.-C.T.)
| | - Sung-Chih Hsieh
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110-31, Taiwan; (C.-S.H.); (S.-C.H.); (N.-C.T.)
- Department of Dentistry, Taipei Municipal Wan-Fang Hospital, Taipei 116-96, Taiwan
| | - Nai-Chia Teng
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110-31, Taiwan; (C.-S.H.); (S.-C.H.); (N.-C.T.)
- Department of Dentistry, Taipei Medical University Hospital, Taipei 110-31, Taiwan
| | - Wei-Fang Lee
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan;
| | - Poonam Negi
- School of Pharmaceutical Sciences, Shoolini University of Biotechnology and Management Sciences, Solan 173 212, India;
| | - Wendimi Fatimata Belem
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110-31, Taiwan;
| | - Hsuan-Chen Wu
- Department of Biochemical Science and Technology, National Taiwan University, Taipei 106, Taiwan;
| | - Jen-Chang Yang
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110-31, Taiwan;
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110-31, Taiwan
- Research Center of Biomedical Device, Taipei Medical University, Taipei 110-52, Taiwan
- Research Center of Digital Oral Science and Technology, Taipei Medical University, Taipei 110-52, Taiwan
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Chang HH, Chang YJ, Yeh CL, Lin TA, Lin CP. Development of calcium phosphate/calcium sulfate biphasic biomedical material with hyaluronic acid containing collagenase and simvastatin for vital pulp therapy. Dent Mater 2020; 36:755-764. [PMID: 32312480 DOI: 10.1016/j.dental.2020.03.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 03/13/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVE In vital pulp therapy (VPT), a barrier is created with appropriate capping to protect the remaining pulp and thus maintain pulp vitality. Here, we evaluated the feasibility of a biphasic calcium phosphate cement (CPC)-calcium sulfate hemihydrate (CSH) biomaterial containing simvastatin (Sim) and collagenase (Col) for VPT. METHODS Combinations of varying CPC and CSH concentrations were analyzed for their handling properties and setting times, with their structures observed through scanning electron microscopy-energy dispersive X-ray spectrometry (SEM-EDS). Drug release patterns of simvastatin and collagenase combined with CPC-CSH (CPC-CSH-Sim-Col) were also analyzed, followed by biocompatibility and bioactivity tests on human dental pulp stem cells (hDPSCs) and in vivo animal study in canine models; the in vivo results were obtained through microcomputed tomography and histological analysis. RESULTS The results revealed that 70 wt% CPC (CPC7) with 30 wt% CSH (CSH3) exhibited optimal setting time and porous structure for clinical use. The cell viability and cytotoxicity analysis demonstrated that CPC7-CSH3 with or without simvastatin or collagenase did not injure hDPSCs. In vivo, the CPC7-CSH3-Sim-Col induced dentin bridge formation. SIGNIFICANCE CPC7-CSH3-Sim-Col in this study has great potential as a VPT biomaterial to enhance the dentin bridge formation.
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Affiliation(s)
- Hao-Hueng Chang
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan; Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan; Department of Dentistry, Cardinal Tien Hospital Yonghe Branch, New Taipei, Taiwan
| | - Yao-Jen Chang
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan
| | - Chun-Liang Yeh
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan
| | - Ting-An Lin
- Graduate Institute of Oral Biology, School of Dentistry, National Taiwan University, Taipei, Taiwan
| | - Chun-Pin Lin
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan; Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan.
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Mahmoud O, Al-Meeri WA, Farook MS, Al-Afifi NA. Calcium Silicate-Based Cements as Root Canal Medicament. Clin Cosmet Investig Dent 2020; 12:49-60. [PMID: 32158275 PMCID: PMC7047992 DOI: 10.2147/ccide.s241015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 01/29/2020] [Indexed: 11/23/2022] Open
Abstract
Purpose This study aims to retard the setting reaction of CSC by mixing it with 2% chlorhexidine gel (CHX) which will be used as an intracanal medicament, and to evaluate the removal of the experimental medicaments from the root canal. Materials and Methods White Portland cement, white ProRoot MTA and Biodentine were mixed with 2% CHX. The setting time, flowability and film thickness of the CSC/CHX mixture (experimental medicaments) were assessed and measured following the standards of ISO specification. Calcium ion release was measured using ICP-OES, while pH was tested using a pH meter. Moreover, twenty single-rooted teeth were filled with the experimental medicaments for seven days, then the medicaments were removed and the samples analyzed using SEM. Calcium hydroxide paste was used as a control. Results The setting time of the experimental medicaments was inhibited until 84 days. The calcium ion release of the experimental medicaments was significantly higher compared to the control over the period of 14 days (P<0.001). The mean pH value was above 11.45 for all tested materials over a period of 14 days, with no significant difference between them (P<0.05). There was no significant difference in film thickness of the experimental medicaments compared to the control (P> 0.05). However, the flowability of the experimental medicaments was significantly higher than the control (P<0.05). SEM showed no significant differences in the removal of the intracanal medicaments between all the tested groups. Conclusion The addition of 2% CHX to CSCs retarded or inhibited its setting reaction over a period of 84 days. The calcium ion release and flowability of these experimental medicaments was found to be better than calcium hydroxide. Removal of the intracanal medicaments from the root canal was successfully achieved in all groups. Therefore, these experimental medicaments have the potential to be used as an enhanced root canal medicament.
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Affiliation(s)
- Okba Mahmoud
- Department of Restorative Dentistry, College of Dentistry, Ajman University, Ajman, United Arab Emirates.,Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Walid Ali Al-Meeri
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Mohideen Salihu Farook
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Nashwan Abdullah Al-Afifi
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia
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48
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Jiménez-Sánchez MDC, Segura-Egea JJ, Díaz-Cuenca A. Physicochemical parameters - hydration performance relationship of the new endodontic cement MTA Repair HP. J Clin Exp Dent 2019; 11:e739-e744. [PMID: 31598203 PMCID: PMC6776399 DOI: 10.4317/jced.56013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 07/04/2019] [Indexed: 12/18/2022] Open
Abstract
Background To characterize the chemical composition and textural parameters of the MTA Repair HP precursor powder and their influence to hydration performance. Material and Methods Un-hydrated precursor material was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), X-ray fluorescence (XRF), laser diffraction (LD), N2 physisorption and field emission gun scanning electron microscopy (FEG-SEM). Setting time was assessed according to ASTM specification C 266. Hydrated material was analysed by XRD, FT-IR, energy dispersive X-ray (EDX) analysis and FEG-SEM. Results Ca3SiO5 and Ca2SiO4, in addition to CaWO4 as radiopacifier are the main compositional phases. Other measured parameter indicates high specific surface area of 4.8 m2 g-1, high aluminium content of 1.7 wt.% and low initial and final setting times of 12 and 199 min, respectively. Singular microstructural features consisting of high aspect ratio nanoparticles are main constituents of un-hydrated precursor. Besides, FEM-SEM observation shows notably growth of hexagonal shaped plate-like morphologies homogeneously distributed along the sample during hydration process. Conclusions The short setting time measured for HP Repair, is correlated with high surface area of precursor powder, high Al content and the absence of compositional sulphate phases. Key words:Bioactive endodontic cements, hydration performance, MTA HP Repair, physicochemical parameters.
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Affiliation(s)
- María Del Carmen Jiménez-Sánchez
- Department of Stomatology, Faculty of Dentistry, University of Sevilla, Sevilla, Spain.,Materials Science Institute of Sevilla (ICMS), Joint CSIC-University of Sevilla Center, Sevilla, Spain
| | - Juan-José Segura-Egea
- Department of Stomatology, Faculty of Dentistry, University of Sevilla, Sevilla, Spain
| | - Aránzazu Díaz-Cuenca
- Materials Science Institute of Sevilla (ICMS), Joint CSIC-University of Sevilla Center, Sevilla, Spain.,Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
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49
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Primus CM, Tay FR, Niu LN. Bioactive tri/dicalcium silicate cements for treatment of pulpal and periapical tissues. Acta Biomater 2019; 96:35-54. [PMID: 31146033 PMCID: PMC6717675 DOI: 10.1016/j.actbio.2019.05.050] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 05/15/2019] [Accepted: 05/19/2019] [Indexed: 12/11/2022]
Abstract
Over 2500 articles and 200 reviews have been published on the bioactive tri/dicalcium silicate dental materials. The indications have expanded since their introduction in the 1990s from endodontic restorative and pulpal treatments to endodontic sealing and obturation. Bioactive ceramics, based on tri/dicalcium silicate cements, are now an indispensable part of the contemporary dental armamentarium for specialists including endodontists, pediatric dentists, oral surgeons andfor general dentists. This review emphasizes research on how these materials have conformed to international standards for dental materials ranging from biocompatibility (ISO 7405) to conformance as root canal sealers (ISO 6876). Potential future developments of alternative hydraulic materials were included. This review provides accurate materials science information on these important materials. STATEMENT OF SIGNIFICANCE: The broadening indications and the proliferation of tri/dicalcium silicate-based products make this relatively new dental material important for all dentists and biomaterials scientists. Presenting the variations in compositions, properties, indications and clinical performance enable clinicians to choose the material most suitable for their cases. Researchers may expand their bioactive investigations to further validate and improve materials and outcomes.
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Affiliation(s)
- Carolyn M Primus
- Department of Endodontics, The Dental College of Georgia, Augusta University, USA.
| | - Franklin R Tay
- Department of Endodontics, The Dental College of Georgia, Augusta University, USA
| | - Li-Na Niu
- Department of Endodontics, The Dental College of Georgia, Augusta University, USA; State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China; The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, Hena, China
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50
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Lopes CS, Junqueira MA, Cosme-Silva L, Pegoraro CDOR, Garbelini CCD, Oliveira TM, Martins NS, Neves JDS, Sakai VT. Initial inflammatory response after the pulpotomy of rat molars with MTA or ferric sulfate. J Appl Oral Sci 2019; 27:e20180550. [PMID: 31365709 PMCID: PMC6690728 DOI: 10.1590/1678-7757-2018-0550] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 01/30/2019] [Accepted: 02/07/2019] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To compare, both qualitatively and quantitatively, the inflammatory cells, vascular density and IL-6 immunolabeled cells present in the pulp after pulpotomy with white MTA versus 15.5% ferric sulfate (FS). METHODOLOGY Forty-eight mandibular first molars from 24 Wistar rats were divided into MTA or FS groups and subdivided according to the period after pulpotomy procedure (24, 48 and 72 hours). Four teeth (sound and untreated) were used as controls. Histological sections were obtained and assessed through the descriptive analysis of morphological aspects of pulp tissue and the quantification of inflammatory cells, vascular density and interleukin-6 (IL-6) expression. Data were statistically analyzed (p<0.05). RESULTS The number of inflammatory cells was similar in both groups, being predominantly localized at the cervical radicular third. In the MTA group, increased inflammation was observed at 48 hours. Vascular density was similar in both groups and over time, being predominant in the medium radicular third. No correlation was found between the number of inflammatory cells and the vascular density. Pulp tissue was more organized in MTA-treated teeth. In both groups, a weak to moderate IL-6 expression was detected in odontoblasts and inflammatory cells. Comparing both groups, there was a greater IL-6 expression in the cervical radicular third of teeth treated with MTA at 24 hours and in the medium and apical thirds at 72 hours, while in the FS group a greater IL-6 expression was found in the apical third at 24 hours. CONCLUSION The MTA group presented better histological features and greater IL-6 expression than the FS group. However, no difference was observed between the groups regarding the inflammatory status and vascularization, suggesting the usefulness of FS as a low-cost alternative to MTA.
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Affiliation(s)
- Camila Soares Lopes
- Universidade Federal de Alfenas (UNIFAL-MG), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - Marina Azevedo Junqueira
- Universidade Federal de Alfenas (UNIFAL-MG), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - Leopoldo Cosme-Silva
- Universidade do Estado de São Paulo (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Endodontia, Araçatuba, São Paulo, Brasil
| | | | | | - Thais Marchini Oliveira
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, São Paulo, Brasil
| | - Natália Silva Martins
- Universidade Federal de Alfenas (UNIFAL-MG), Instituto de Exatas, Departamento de Estatística, Alfenas, Minas Gerais, Brasil
| | - Juliana Dos Santos Neves
- Universidade Federal de Alfenas (UNIFAL-MG), Departamento de Biologia Estrutural, Alfenas, Minas Gerais, Brasil
| | - Vivien Thiemy Sakai
- Universidade Federal de Alfenas (UNIFAL-MG), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
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