1
|
Reis Souza ID, Leite ML, de Oliveira Ribeiro RA, Hebling J, de Souza Costa CA. Transdentinal cytotoxicity of resin luting cements using the bovine and human dentin barrier. J Prosthet Dent 2023; 130:939.e1-939.e8. [PMID: 37867015 DOI: 10.1016/j.prosdent.2023.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 10/24/2023]
Abstract
STATEMENT OF PROBLEM Based upon ethical questions and because of the difficulty of obtaining intact human teeth, researchers have used bovine teeth to assess the physical and mechanical properties of different dental materials. However, data from transdentinal cytotoxicity tests showing that the bovine dentin barrier is similar to the human dentin barrier is lacking. PURPOSE The purpose of this in vitro study was to evaluate whether the bovine dentin barrier produces similar results to those obtained when the human dentin barrier is used to assess the transdentinal cytotoxicity of resin luting cements. MATERIAL AND METHODS The number and diameter of dentinal tubules present in the human dentin barrier and bovine dentin barrier were evaluated and assessed with a t test (α=.05). After inserting the standardized dentin barriers into artificial pulp chambers, murine dental papilla-derived cells (MDPC-23) were seeded on the pulpal surface of the specimens, and the luting cements were applied to their occlusal surfaces. Then, the following groups were established for both human and bovine dentin barriers: no treatment (negative control); Single Bond Universal; RelyX Luting 2; RelyX U200; and RelyX Ultimate. After 24 hours, the viability (alamarBlue) and morphology (scanning electron microscopy) of the cells were evaluated with a 2-way analysis of variance and the Tukey honest significance test (α=.05). RESULTS Dentinal tubules with larger diameters were observed in bovine dentin (P<.05), but the number of tubules was similar (P>.05). A reduction in viability and notable changes in the morphology of MDPC-23 cells occurred in the Single Bond Universal and RelyX Luting 2 groups in comparison with the negative control (P<.05). The RelyX U200 and RelyX Ultimate groups were statistically similar to the negative control (P>.05). No difference was found in cytotoxicity when the same luting cement was applied on human or bovine dentin barriers (P>.05). CONCLUSIONS For transdentinal cytotoxicity tests of resin luting cements, the bovine dentin barrier proved similar results to the human dentin barrier.
Collapse
Affiliation(s)
- Isabela Dos Reis Souza
- Former Postgraduate student, Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Maria Luísa Leite
- Postdoctoral Researcher, Department of Oral Health Sciences, Faculty of Dentistry, The University of British Columbia, Vancouver, Canada
| | - Rafael Antonio de Oliveira Ribeiro
- PhD student, Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Josimeri Hebling
- Professor, Department of Morphology and Pediatric Dentistry, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Carlos Alberto de Souza Costa
- Professor, Department of Physiology and Pathology, Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil.
| |
Collapse
|
2
|
da Silva DC, Vaz LG, Tavares WLF, Vieira LQ, de Oliveira RR, Sobrinho APR. Cytotoxicity of two self-adhesive resin cements and their interference in the phagocytic activity of murine macrophages. Restor Dent Endod 2022; 47:e31. [PMID: 36090510 PMCID: PMC9436648 DOI: 10.5395/rde.2022.47.e31] [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: 01/04/2022] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 12/04/2022] Open
Abstract
Objectives This study aimed to evaluate in vitro the effects of the self-adhesive resin cements RelyX U200 (3M ESPE) and seT PP (SDI Limited) on murine macrophages and the interference of the photoactivation. Materials and Methods Cell viability assays, cell adherence, yeast phagocytosis of Saccharomyces boulardii and production of reactive oxygen species (ROS) were performed in the presence of capillaries containing the respective self-adhesive cement when photoactivated or not. Results After long periods of contact, both types of cements, when not photoactivated, are more cytotoxic for macrophages. The seT PP cement when only chemically activated seems to interfere more negatively in the process of phagocytosis of yeasts S. boulardii. Both types of cements interfere in the cell adhesion process, independent of photoactivation. None of the types of cements tested was able to induce the production of ROS. Conclusions Our results highlight the great importance of the photoactivation of self-adhesive resin cements in the dental clinic, since RelyX U200, when photoactivated, presented the best results within the evaluated parameters.
Collapse
Affiliation(s)
- Danilo Couto da Silva
- Department of Restorative Dentistry, Faculty of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Leonardo Gomes Vaz
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Warley Luciano Fonseca Tavares
- Department of Restorative Dentistry, Faculty of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Leda Quercia Vieira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Ricardo Reis de Oliveira
- Department of Restorative Dentistry, Faculty of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Antônio Paulino Ribeiro Sobrinho
- Department of Restorative Dentistry, Faculty of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| |
Collapse
|
3
|
Guerrero-Gironés J, López-García S, Pecci-Lloret MR, Pecci-Lloret MP, García-Bernal D. Influence of dual-cure and self-cure abutment cements for crown implants on human gingival fibroblasts biological properties. Ann Anat 2021; 239:151829. [PMID: 34500053 DOI: 10.1016/j.aanat.2021.151829] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 08/19/2021] [Accepted: 08/20/2021] [Indexed: 02/07/2023]
Abstract
AIMS To analyze the biological effects of the cements Relyx Unicem 2, Panavia V5, Multilink Hybrid Abutment and SoloCem on human gingival fibroblast cells (HGFs). MATERIALS AND METHODS HGFs were exposed to different eluates (n = 40) of the studied resin-based cements. Their cytotoxic effects and influence on cell migration were assessed using MTT and wound-healing assays, respectively. Level of HGF attachment, cell morphology and F-actin cytoskeleton content after exposition to the different eluates were analyzed by scanning electron microscopy (SEM) and confocal microscopy analysis, respectively. The levels of intracellular reactive oxygen species (ROS) produced by the eluates of the different cements were also determined by flow cytometry. Data were analyzed by one-way analysis of variance (ANOVA) followed by Tukey´s test. RESULTS Eluates of SoloCem significantly reduces the viability of HGFs (69% reduction compared to control at 48 h). Cell migration of HGFs in presence of undiluted SoloCem eluates was significantly lower than in the control (88% open wound area at 24 h). Contrarily, migration speed with Multilynk eluates was similar to that of the control group at all periods of time and all dilutions studied. SEM analysis showed very few cells in SoloCem group, and a moderate cell growth in Multilink, Panavia and Relyx groups were detected. Finally, ROS levels detected in HGFs treated with the more concentrated SoloCem and Relyx dilutions were significantly enhanced compared with that in the control cells or the other groups (44% and 11% ROS positive cells, respectively). CONCLUSIONS The results obtained in the present work suggest that Multilink hybrid abutment has better biological properties and lower cytotoxicity for cementing implant crowns on abutments.
Collapse
Affiliation(s)
- Julia Guerrero-Gironés
- Department of Stomatology, Faculty of Medicine, University of Murcia, 30008 Murcia, Spain
| | - Sergio López-García
- Hematopoietic Transplant and Cellular Therapy Unit, Instituto Murciano de Investigación Biosanitaria Virgen de la Arrixaca, 30120 Murcia, Spain
| | - Miguel R Pecci-Lloret
- Department of Stomatology, Faculty of Medicine, University of Murcia, 30008 Murcia, Spain
| | - María P Pecci-Lloret
- Department of Stomatology, Faculty of Medicine, University of Murcia, 30008 Murcia, Spain.
| | - David García-Bernal
- Hematopoietic Transplant and Cellular Therapy Unit, Instituto Murciano de Investigación Biosanitaria Virgen de la Arrixaca, 30120 Murcia, Spain
| |
Collapse
|
4
|
KAHVECİOĞLU F, KÖLÜŞ T, SAĞ GÜNGÖR F, ÜLKER HE. Cytotoxicity of two self-adhesive flowable composites on bovine dental pulp-derived cells. JOURNAL OF HEALTH SCIENCES AND MEDICINE 2021. [DOI: 10.32322/jhsm.842367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
|
5
|
Demirel G, Demirsoy FFK, Irmak Ö. Cytotoxicity evaluation of eluates from universal adhesives by real-time cell analysis. Dent Mater J 2020; 39:815-824. [PMID: 32507798 DOI: 10.4012/dmj.2019-221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this study was to evaluate the cytotoxicity of universal adhesives on L929 mouse fibroblast cell line by using a real-time cell analysis. In order to obtain extract, six different cured dental adhesives were immersed in Dulbecco's Modified Eagle's Medium (DMEM) at 37°C for 24 h. A real-time cell analysis system was used to assess cytotoxicity of the dental adhesives. After seeding 25,000 cells/300 μL/well cell suspensions into the wells of an e-plate, fibroblasts were exposed to extracts of tested adhesives at varying dilutions (1:1, 1:2, and 1:10) and observed at every 30 min intervals for 72 h. Three-way ANOVA one factor repeated measures were used to analyze the results (α=0.05). All tested adhesives induced cell viability loss, cell morphology alteration, and cell death depending on extract concentration and time. Cell viability of L929 cells to between 44 and 10% for 1:1 diluted extracts, at 72 h, when compared to the negative control.
Collapse
Affiliation(s)
- Gülbike Demirel
- Faculty of Dentistry, Department of Restorative Dentistry, Ankara University
| | | | - Özgür Irmak
- Faculty of Dentistry, Department of Restorative Dentistry, Near East University
| |
Collapse
|
6
|
Şişmanoğlu S, Demirci M, Schweikl H, Ozen-Eroglu G, Cetin-Aktas E, Kuruca S, Tuncer S, Tekce N. Cytotoxic effects of different self-adhesive resin cements: Cell viability and induction of apoptosis. J Adv Prosthodont 2020; 12:89-99. [PMID: 32377322 PMCID: PMC7183849 DOI: 10.4047/jap.2020.12.2.89] [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: 11/25/2019] [Revised: 03/05/2020] [Accepted: 03/12/2020] [Indexed: 02/01/2023] Open
Abstract
PURPOSE The effects of four different self-adhesive resin cement materials on cell viability and apoptosis after direct and indirect exposure were evaluated using different cell culture techniques. MATERIALS AND METHODS Self-adhesive cements were applied to NIH/3T3 mouse fibroblasts by the extract test method, cell culture inserts, and dentin barrier test method. After exposure periods of 24 h and 72 h, the cytotoxicity of these self-adhesive materials was evaluated using the MTT assay (viability) and the Annexin-V-FITC/PI staining (apoptosis). RESULTS The lowest cell viability was found in cells exposed to BeautiCem SA for 24 h in the extract test method. Cell viability was reduced to 70.6% compared to negative controls. After the 72 h exposure period, viability rate of cell cultures exposed to BeautiCem SA decreased more than 2- fold (29.5%) while cells exposed to RelyX U200 showed the highest viability rate of 71.4%. In the dentin barrier test method, BeautiCem SA induced the highest number of cells in apoptosis after a 24 h exposure (4.1%). Panavia SA Cement Plus was the material that caused the lowest number of cells in apoptosis (1.5%). CONCLUSION The used self-adhesive cements have showed different cytotoxic effects based on the evaluation method. As exposure time increased, the materials showed more cytotoxic and apoptotic effects. BeautiCem SA caused significantly more severe cytotoxic and apoptotic effects than other cements tested. Moreover, cements other than BeautiCem SA have caused necrotic cell death rather than apoptotic cell death.
Collapse
Affiliation(s)
- Soner Şişmanoğlu
- Department of Restorative Dentistry, Faculty of Dentistry, Altınbaş University, Istanbul, Turkey
| | - Mustafa Demirci
- Department of Restorative Dentistry, Faculty of Dentistry, Istanbul University, Istanbul, Turkey
| | - Helmut Schweikl
- Department of Operative Dentistry and Periodontology, University of Regensburg Medical Centre, Regensburg, Germany
| | - Gunes Ozen-Eroglu
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Esin Cetin-Aktas
- Department of Immunology, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Serap Kuruca
- Department of Physiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Safa Tuncer
- Department of Restorative Dentistry, Faculty of Dentistry, Istanbul University, Istanbul, Turkey
| | - Neslihan Tekce
- Department of Restorative Dentistry, Faculty of Dentistry, Kocaeli University, Kocaeli, Turkey
| |
Collapse
|
7
|
Demirel G, Gür G, Demirsoy FF, Altuntaş EG, Yener-Ilce B, Kiliçarslan MA. Cytotoxic effects of contemporary bulk-fill dental composites: A real-time cell analysis. Dent Mater J 2020; 39:101-110. [PMID: 31564690 DOI: 10.4012/dmj.2018-336] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this study was to evaluate the cytotoxicity of contemporary flowable and paste-like bulk-fill dental composites by using a real-time cell analysis. In the present paper, cytotoxicity levels of five flowable, five paste-like bulk-fill composite materials and one conventional flowable, one conventional paste-like resin composite were examined on L929 mouse fibroblast cell line. After seeding 25,000 cells/300 μL/well cell suspensions into the wells of an E-plate, test materials were added and observed at every 30 min intervals for 72 h. Kruskal Wallis H and Mann Whitney U multiple comparison tests were used to analyze the results. Pre-reacted glass-ionomer (PRG) containing bulk-fill composites were severely toxic at all time points (24, 48 and 72 h, p<0.05). None of the tested composites demonstrated high cell viability (>70%) at 48 and 72 h. Flowable and paste-like composites of the same brand exhibited similar cytotoxic properties (p>0.05).
Collapse
Affiliation(s)
- Gülbike Demirel
- Department of Restorative Dentistry, Faculty of Dentistry, Ankara University
| | - Gürkan Gür
- Department of Restorative Dentistry, Faculty of Dentistry, Ankara University
| | - Fatma Funda Demirsoy
- Systems Biotechnology Advanced Reseach Unit, Biotechnology Institute, Ankara University
| | - Evrim Güneş Altuntaş
- Systems Biotechnology Advanced Reseach Unit, Biotechnology Institute, Ankara University
| | - Burcu Yener-Ilce
- Systems Biotechnology Advanced Reseach Unit, Biotechnology Institute, Ankara University
| | | |
Collapse
|
8
|
Live cell imaging reveals different modes of cytotoxic action of extracts derived from commonly used luting cements. Arch Oral Biol 2017; 86:108-115. [PMID: 29223023 DOI: 10.1016/j.archoralbio.2017.11.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Revised: 11/19/2017] [Accepted: 11/26/2017] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To compare cytotoxicity of extracts derived from commonly used luting cements: Hoffmann's Zinc Phosphate (ZPC), GC Fuji Plus Resin Modified Glass Ionomer (RMGIC) and 3M ESPE RelyX Unicem Resin Cement (RC) on primary human gingival fibroblasts (HGFs). DESIGN HGFs were exposed to different concentrations of the ZPC, RMGIC and RC extracts. The cytotoxicity was assessed with the PrestoBlue Cell Viability Reagent and viable cells were counted by a haemocytometer using the trypan blue exclusion test. In order to determine the primary mechanism of the cell death induced by extracts from different luting cements, the real-time monitoring of caspase-3/-7 activity and membrane integrity of cells was employed. RESULTS The extracts from the RMGIC and ZPC decreased the metabolic activity and numbers of viable cells. Unexpectedly, the extracts from the RC evoked only small effects on the metabolic activity of HGFs with a decreasing number of viable cells in a dose-and time-dependent manner. The live cell imaging revealed that the apoptosis was the primary mechanism of a cell death induced by the extracts derived from the RMGIC, whereas the extracts from the RC and ZPC induced a cell death through a necrotic and caspase-independent pathway. CONCLUSIONS The apoptosis was the primary mechanism of the cell death induced by the extracts derived from the RMGIC, whereas the extracts from the RC and ZPC induced a cell death via a necrotic pathway. We suggest that metabolic assays commonly used to assess the cytotoxicity of luting cements should be validated by alternative methods.
Collapse
|
9
|
D'Alpino PHP, Moura GEDDD, Barbosa SCDA, Marques LDA, Eberlin MN, Nascimento FD, Tersariol ILDS. Differential cytotoxic effects on odontoblastic cells induced by self-adhesive resin cements as a function of the activation protocol. Dent Mater 2017; 33:1402-1415. [DOI: 10.1016/j.dental.2017.09.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 07/19/2017] [Accepted: 09/20/2017] [Indexed: 11/15/2022]
|
10
|
TUMSCITZ DB, LAXE LAC, PASCOAL ACRF, HIRATA JUNIOR R, LINS RX. Cytotoxicity of three light-cured resin cements on 3T3 fibroblasts. REVISTA DE ODONTOLOGIA DA UNESP 2017. [DOI: 10.1590/1807-2577.16316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract Introduction Light-cured resin cements are the first choice for the cementation of laminate veneers. Ideally, they should be biocompatible and offer minimum risks to patients. Objective The aim of this study was to evaluate, in vitro, the cytotoxicity of three resin cements: Variolink II, Ivoclar Vivadent (C1), Allcem Veneer, FGM (C2), and Rely X Veneer, 3M ESPE (C3). Material and method Twenty four samples of each of the cements were fabricated in a standardized metal mold, light activated, and transferred to a 96-well cell plate with culture of fibroblasts. After 24, 48, and 72h of incubation, cytotoxicity was assessed and cell viability was calculated by the methyl-thiazol-tetrazolium (MTT) colorimetric assay. Absorbance was measured at 570 nm using a microplate spectrophotometer. Result The following results were found: Variolink II presented viability of 72.24% (SD 6.80) after 24h, 83.92% (SD 5.26) after 48h, and 92.77% (SD 5.59) after 72h; Allcem Veneer exhibited viability of 70.46% (SD 12.91) after 24h, 85.03% (SD 21.4) after 48h, and 70.46% (SD 12.91) after 72h; Rely X Veneer showed viability of 5.06% (SD 0.88) after 24h, 5.84% (SD 1.18) after 48h, and 6.99% (SD 1.34) after 72h. Conclusion Under these testing conditions, Rely X Veneer presented significantly higher cytotoxicity compared with those of the other light-cured resin cements assessed.
Collapse
|
11
|
Kerezoudi C, Gogos C, Samanidou V, Tziafas D, Palaghias G. Evaluation of monomer leaching from a resin cement through dentin by a novel model. Dent Mater 2016; 32:e297-e305. [PMID: 27671464 DOI: 10.1016/j.dental.2016.09.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 03/22/2016] [Accepted: 09/03/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To evaluate the elution of HEMA, BPA, UDMA and BisGMA from a conventional resin cement (Multilink Automix®, Ivoclar Vivadent) through human dentin, under constant positive pulpal pressure. METHODS Ten human dentin disks (n=10) were adjusted in a new testing device and transparent glass slabs were luted with Multilink Automix® resin cement, following manufacturer's instructions, under a steady pressure of 25N. The device was filled with Ringer's solution. At 5min, 20min, 1h, 2h, 21h, 3 days, 7 days, 10days and 21days time intervals, the whole eluate was retrieved from each one of the ten specimens and then, the specimens were refilled with fresh Ringer's solution. The eluates were analyzed by High Performance Liquid Chromatography (HPLC). RESULTS HEMA was detected in the eluate of all of the specimens, from 5min until 10 days. At four of the specimens, HEMA was also detected in the 21days eluate at very low concentrations. BPA, UDMA and BisGMA were not detected at any eluate. An unknown compound was also detected at 4.4min. SIGNIFICANCE The concentrations of HEMA that enabled to diffuse from Multilink Automix® cement in an aqueous solution, through a dentin barrier, did not reach toxic levels and BPA, UDMA and BisGMA were not detected at all.
Collapse
Affiliation(s)
- C Kerezoudi
- Department of Basic Dental Sciences, School of Dentistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece.
| | - C Gogos
- Department of Endodontics, School of Dentistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece.
| | - V Samanidou
- Laboratory of Analytical Chemistry, Department of Chemistry, School of Sciences, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece.
| | - D Tziafas
- Department of Endodontics, School of Dentistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece.
| | - G Palaghias
- Department of Basic Dental Sciences, School of Dentistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece.
| |
Collapse
|
12
|
Bezzon OL, Rivera DSH, Silva RAB, Oliveira DSB, Silva-Herzog D, Nelson-Filho P, Lucisano MP, Silva LAB. Resin luting materials: Tissue response in dog's teeth. Microsc Res Tech 2015; 78:1098-103. [PMID: 26497153 DOI: 10.1002/jemt.22590] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/16/2015] [Accepted: 09/29/2015] [Indexed: 11/11/2022]
Abstract
The aim of this study was to evaluate radiographically and histologically the pulpal and periapical response to self-adhesive (Rely X™ Unicem) and self-etching and self-curing (Multilink(®)) resin-based luting materials in deep cavities in dogs' teeth. Deep class V cavities (0.5-mm-thick dentin) were prepared in 60 canine premolars and the following materials were applied on cavity floor: Groups I/V-RelyX™ Unicem; Groups II/VI-Multilink(®); Groups III/VII-zinc phosphate cement (control) and; Groups IV/VIII-gutta-percha (control). Cavities were restored with silver amalgam. Animals were euthanized after 10 days (groups I-IV) and 90 days (groups V-VIII). Tooth/bone blocks were radiographed and processed for histopathological evaluation of pulp and periapical tissue response to the materials. All materials presented similar histopathological features and radiographic findings at both periods. The pulp tissue was intact. The apical and periapical regions and periodontal ligament thickness were normal. No inflammatory cells, resorption of mineralized tissue (dentin, cementum, and alveolar bone) or bacteria were observed. The lamina dura was intact and no areas of periapical bone rarefaction or internal/external root resorption were observed radiographically. It can be concluded that Rely X™ Unicem and Multilink(®) caused no adverse tissue reactions and may be indicated for cementation of indirect restorations in deep dentin cavities without pulp exposure.
Collapse
Affiliation(s)
- Osvaldo L Bezzon
- Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Daniella S H Rivera
- Department of Prosthodontics, Dental School, San Luis Potosi University, San Luis Potosi, Mexico
| | - Raquel A B Silva
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Daniela S B Oliveira
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Daniel Silva-Herzog
- Department of Endodontics, Dental School, San Luis Potosi University, San Luis Potosi, Mexico
| | - Paulo Nelson-Filho
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Marília P Lucisano
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Léa A B Silva
- Department of Pediatric Dentistry School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| |
Collapse
|