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Jamal H, Yaghmoor R, Abed H, Young A, Ashley P. Impact of Dentine Pretreatment with Matrix Metalloproteinase Inhibitors on Bond Strength of Coronal Composite Restorations: A Systematic Review and Meta-analysis of In Vitro Studies. Eur J Dent 2023; 17:974-999. [PMID: 36400108 PMCID: PMC10756735 DOI: 10.1055/s-0042-1757582] [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] [Indexed: 11/21/2022] Open
Abstract
Matrix metalloproteinase (MMP) enzymes participate in collagen matrix degradation, including in dentine, potentially compromising bond strength. Therefore, MMP inhibitors have been hypothesized to improve restoration bond strength and stability. This systematic review aimed to evaluate the influence of different MMP inhibitors applied as dentine surface pretreatments on the immediate (24 hours) and longer term (months) bond strength of direct coronal composite restorations. This systematic literature review followed the Preferred Reporting Items for Systematic Review and Meta-analyses (PRISMA) statement. A systematic literature search of three databases (Ovid MEDLINE, Ovid Embase, and Google Scholar) was conducted independently by two reviewers from inception to April 2022. An adapted quality assessment tool was independently applied by two reviewers for risk of bias assessment. RevMan v5.4 software was used for meta-analyses. A randomeffectsmodel was used to generatemean differences with 95% confidence intervals for treatment and control comparisons. The Q-test and I2-test were used to test for heterogeneity. The proportion of total variance across studies attributable to heterogeneity rather than chance was calculated. Overall effects were tested using the Z-test, while subgroup differences were tested using Chi-squared tests. Of 934 studies, 64 studies were included in the systematic review and 42 in the meta-analysis. Thirty-one MMP inhibitors were reported, three of which were included in the meta-analysis: 2% chlorhexidine (CHX), 0.3M carbodiimide (EDC), and 0.1% riboflavin (RIBO). Pretreatment with 2% CHX for 30 and 60 seconds did not significantly improve bond strength compared with controls either immediately or after long-termageing. However, pretreatment with 0.3MEDC and 0.1% RIBO (but not CHX) significantly improved bond strength compared with control groups both immediately and over time. Most studies showed a medium risk of bias. These in vitro findings pave the way for rationale clinical trialing of dentine surface pretreatment with MMP inhibitors to improve clinical outcomes.
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Affiliation(s)
- Hasan Jamal
- Paediatric Dentistry Department, Eastman Dental Institute, University College London, London, United Kingdom
- Department of Biomaterials and Tissue Engineering, Royal Free Hospital, UCL Eastman Dental Institute, London, United Kingdom
| | - Rayan Yaghmoor
- Department of Biomaterials and Tissue Engineering, Royal Free Hospital, UCL Eastman Dental Institute, London, United Kingdom
- Department of Microbial Diseases, UCL Eastman Dental Institute, Royal Free Hospital, London, United Kingdom
- Department of Restorative Dentistry, Faculty of Dentistry, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Hassan Abed
- Department of Basic and Clinical Oral Sciences, Faculty of Dentistry, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Anne Young
- Department of Biomaterials and Tissue Engineering, Royal Free Hospital, UCL Eastman Dental Institute, London, United Kingdom
| | - Paul Ashley
- Paediatric Dentistry Department, Eastman Dental Institute, University College London, London, United Kingdom
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2
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Gradinaru I, Vasiliu AL, Bargan A, Checherita LE, Ciubotaru BI, Armencia AO, Istrate B, Dascalu CG, Antohe ME. The Influence of Beverages on Resin Composites: An In Vitro Study. Biomedicines 2023; 11:2571. [PMID: 37761013 PMCID: PMC10526112 DOI: 10.3390/biomedicines11092571] [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: 07/29/2023] [Revised: 09/11/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Dental composites, through their structural diversity, represent the biomaterials frequently used in dental reconstructive therapy. The aim of our study was to observe the influence of different beverage environment conditions on seven types of obturation dental materials with different compositions. Our research focused on the surface modification analysis of the materials after the immersion in the different beverages; in this regard, we used the EDAX technique correlated with the energy-dispersive X-ray fluorescence (XRF). The pH of the drinks and that of the simulated saliva solution were determined by the titrimetric method, a sodium hydroxide solution 0.1 mol/dm3 was prepared and used for the titration. An amount of 5 mL of each analyzed solution was added to 15 mL of distilled water to obtain a dilution, to which 3 drops of phenolphthalein (as a color indicator-Phenolphthalein, 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone, C20H14O4 Mw: 318.32, purchased from Merck) were added for each analysis. For each solution, the experiment was repeated three times in order to obtain accurate results. The results of our study materialized into a real plea for modifying the patients' behavior in terms of diet and preferences for acidic drinks, so that their quality-of-life valence can be improved by keeping the composite materials in a long-term unalterable state on the one hand; on the other hand, systemic damage can be prevented as well.
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Affiliation(s)
- Irina Gradinaru
- 3rd Dental Medicine Department, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (I.G.); (M.E.A.)
| | - Ana Lavinia Vasiliu
- Department of Functional Polymers, “Petru Poni” Institute of Macromolecular Chemistry, Aleea Grigore Ghica-Vodă, 41A, 700487 Iasi, Romania; (A.L.V.); (A.B.)
| | - Alexandra Bargan
- Department of Functional Polymers, “Petru Poni” Institute of Macromolecular Chemistry, Aleea Grigore Ghica-Vodă, 41A, 700487 Iasi, Romania; (A.L.V.); (A.B.)
| | - Laura Elisabeta Checherita
- 2nd Dental Medicine Department, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
| | - Bianca-Iulia Ciubotaru
- Department of Inorganic Polymers, “Petru Poni” Institute of Macromolecular Chemistry, Aleea Grigore Ghica-Vodă, 41A, 700487 Iasi, Romania;
| | - Adina Oana Armencia
- 1st Dental Medicine Department, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania
| | - Bogdan Istrate
- Department of Mechanical, Mechatronic and Robotic Engineering, The Faculty of Mechanics, “Gheorghe Asachi” Technical University, Bulevardul Profesor Dimitrie Mangeron 67, 700050 Iasi, Romania;
| | - Cristina Gena Dascalu
- Department of Medical Informatics, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania
| | - Magda Ecaterina Antohe
- 3rd Dental Medicine Department, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (I.G.); (M.E.A.)
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Lind E, Mähönen H, Latonen RM, Lassila L, Pöllänen M, Loimaranta V, Laine M. Erosive potential of ice tea beverages and kombuchas. Acta Odontol Scand 2023:1-8. [PMID: 37192014 DOI: 10.1080/00016357.2023.2199848] [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: 03/26/2022] [Revised: 02/15/2023] [Accepted: 04/03/2023] [Indexed: 05/18/2023]
Abstract
OBJECTIVES Kombuchas and other tea-based beverages are often perceived as healthy products despite the lack of knowledge on their effects on oral health. This in vitro study determined the erosive potential of commercial kombuchas, and ice teas compared to cola drinks. MATERIALS AND METHODS The pH and fluoride content of 7 kombuchas and 18 tea drinks were measured with ion-selective electrodes. Calcium dissolution from hydroxyapatite grains was quantified by atomic absorption spectroscopy after beverage exposure. The effect of beverages on the enamel surface was visualized by scanning electron microscopy (SEM). Distilled water, and cola drinks were used as negative and positive controls. RESULTS The kombuchas exhibited lower pH values (2.82-3.66) than the ice teas (2.94-4.86), but still higher than the cola drinks (2.48-2.54). The fluoride concentration varied between 0.05 and 0.46 ppm and for 7 beverages the concentration was below the detection limit. The calcium release for kombuchas was 198-746 mg/l, for ice teas 16.1-507 mg/l, and for cola drinks 57.7-71.9 mg/l. Twenty-two beverages had a significantly greater calcium release than the cola drinks (p = .009-.014). The surface etching of the enamel was seen in the SEM analysis after beverage exposure. CONCLUSIONS Tea-based beverages have even higher erosive potential than cola drinks. Kombuchas especially, displayed a considerable erosive potential.
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Affiliation(s)
- Elisa Lind
- Institute of Dentistry, University of Turku, Turku, Finland
| | - Hilma Mähönen
- Institute of Dentistry, University of Turku, Turku, Finland
| | - Rose-Marie Latonen
- Laboratory of Molecular Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Lippo Lassila
- Turku Clinical Biomaterials Centre-TCBC, Institute of Dentistry, University of Turku, Turku, Finland
- Department of Biomaterials Science, Institute of Dentistry, University of Turku, Turku, Finland
| | - Marja Pöllänen
- Institute of Dentistry, University of Turku, Turku, Finland
- The Finnish Medical Society Duodecim, Current Care, Helsinki, Finland
| | | | - Merja Laine
- Institute of Dentistry, University of Turku, Turku, Finland
- Department of Cariology and Restorative Dentistry, University of Turku, Turku, Finland
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4
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Yang H, Lin XJ, Liu Q, Yu H. Effects of protease inhibitors on dentin erosion: an in situ study. Clin Oral Investig 2023; 27:1005-1012. [PMID: 35925407 DOI: 10.1007/s00784-022-04657-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 07/30/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVE This in situ study aimed to evaluate the effects of the inhibitors of matrix metalloproteinases (MMPs) and cysteine cathepsins on dentin erosion. MATERIALS AND METHODS Ten volunteers participated in this study. Each volunteer wore an intraoral appliance containing 4 dentin specimens subjected to different treatments: deionized water as a control, 1 mM 1,10-phenanthroline (an MMP inhibitor), 50 µM E-64 (a cysteine cathepsin inhibitor), and 1 mM 1,10-phenanthroline + 50 µM E-64. The specimens were dipped in 5 ml of the respective solutions for 30 min at room temperature and then exposed to in vivo erosive challenges by rinsing with 150 ml of a cola drink (4 × 5 min/day) for 7 days. The substance loss of the specimens was measured by profilometry. The transverse sections of the specimens were examined using scanning electron microscopy. Thereafter, the demineralized organic matrix (DOM) of the specimens was removed using type I collagen enzyme and assessed by performing profilometry. The differences in substance loss and DOM thickness among the groups were analyzed by one-way repeated-measures analysis of variance (ANOVA) and Bonferroni's test at a level of P < 0.05. RESULTS Protease inhibitors significantly reduced substance loss in comparison to that of the control group (all P < 0.05). A significantly thicker DOM was observed for the specimens treated with protease inhibitors than for the control specimens (all P < 0.05). No significant differences in substance loss or DOM thickness were found among the MMP inhibitor, cysteine cathepsin inhibitor, and MMP + cysteine cathepsin inhibitor groups. CONCLUSIONS The use of MMP and cysteine cathepsin inhibitors was shown to increase the acid resistance of human dentin, which may be due to the preservation of the DOM. CLINICAL RELEVANCE The application of protease inhibitors could be considered an appropriate preventive strategy for dentin erosion.
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Affiliation(s)
- Hui Yang
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China.,Research Center of Dental Esthetics and Biomechanics, Fujian Medical University, Fuzhou, China
| | - Xiu-Jiao Lin
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China.,Research Center of Dental Esthetics and Biomechanics, Fujian Medical University, Fuzhou, China
| | - Qiong Liu
- Department of Pediatric Dentistry, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Hao Yu
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China. .,Research Center of Dental Esthetics and Biomechanics, Fujian Medical University, Fuzhou, China. .,Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan. .,Department of Prosthodontics, School and Hospital of Stomatology, Fujian Medical University, Yangqiao Zhong Road 246, Fuzhou, 350002, China.
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5
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Augusto MG, Scaramucci T, Campos TMB, Aoki IV, Schlueter N, Borges AB. Film-Forming Polymers for Tooth Erosion Prevention. Polymers (Basel) 2022; 14:polym14194225. [PMID: 36236172 PMCID: PMC9573524 DOI: 10.3390/polym14194225] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 11/16/2022] Open
Abstract
Different agents have been proposed to prevent the progression of acid induced dental substance losses, which are called erosive tooth wear (ETW), such as fluorides, calcium, and phosphate-based products; however, there is a need for a further increase in efficacy. Recently, the ability of polymers to interact with the tooth surface, forming acid resistant films, has come into the focus of research; nevertheless, there is still the need for a better understanding of their mode of action. Thus, this article provides an overview of the chemical structure of polymers, their mode of action, as well as the effect of their incorporation into oral care products, acid beverages, and antacid formulations, targeting the prevention of ETW. Recent evidence indicates that this may be a promising approach, however, additional studies are needed to confirm their efficacy under more relevant clinical conditions that consider salivary parameters such as flow rate, composition, and clearance. The standardization of methodological procedures such as acid challenge, treatment duration, and combination with fluorides is necessary to allow further comparisons between studies. In conclusion, film-forming polymers may be a promising cost-effective approach to prevent and control erosive demineralization of the dental hard tissue.
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Affiliation(s)
- Marina Gullo Augusto
- Institute of Science and Technology, Department of Restorative Dentistry, São Paulo State University-UNESP, São José dos Campos 12245-000, Brazil
- School of Dentistry, Centro Universitário de Cascavel–UNIVEL, Av. Tito Muffato, 317-Santa Cruz, Cascavel 85806-080, Brazil
| | - Tais Scaramucci
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo-USP, São Paulo 12245-000, Brazil
| | | | - Idalina Vieira Aoki
- Department of Chemical Engineering, Polytechnic School, University of São Paulo-USP, São Paulo 12245-000, Brazil
| | - Nadine Schlueter
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, 30625 Hannover, Germany
| | - Alessandra Bühler Borges
- Institute of Science and Technology, Department of Restorative Dentistry, São Paulo State University-UNESP, São José dos Campos 12245-000, Brazil
- Correspondence: ; Tel.: +55-12-3947-9374
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6
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Anumula L, Ramesh S, Kolaparthi VSK, Kirubakaran R, Karobari MI, Arora S, Saleh AA, Aldowah O, Messina P, Scardina GA. Role of Natural Cross Linkers in Resin-Dentin Bond Durability: A Systematic Review and Meta-Analysis. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5650. [PMID: 36013786 PMCID: PMC9413318 DOI: 10.3390/ma15165650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 08/02/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND The role of endogenous Matrix Metallo Proteinases in resin dentin bond deterioration over time has been well documented. The present study aimed to systematically review the literature; in vitro and ex vivo studies that assessed the outcomes of natural cross-linkers for immediate and long-term tensile bond strength were included. METHODS The manuscript search was carried out in six electronic databases-PubMed/MEDLINE, LILACS, SciELO, Cochrane, Web of Science and DOAJ, without publication year limits. Only manuscripts in English (including the translated articles) were selected, and the last search was performed in December 2020. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement was followed. RESULTS From the 128 potentially eligible studies, 48 full-text articles were assessed for eligibility. After eligibility assessment and exclusions, 14 studies were considered for systematic review and seven studies for meta-analysis. Amongst the selected studies for meta-analysis, three had a medium and four had a low risk of bias. CONCLUSIONS It was evidenced by the available data that Proanthocyanidin is the most efficient natural cross-linker to date, in preserving the bond strength even after ageing.
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Affiliation(s)
- Lavanya Anumula
- Department of Conservative Dentistry and Endodontics, Narayana Dental College and Hospital, Nellore 524003, Andra Pradesh, India
| | - Sindhu Ramesh
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospital, Chennai 600077, Tamil Nadu, India
| | | | - Richard Kirubakaran
- Cochrane South Asia, BV Moses Centre for Evidence Informed Health Care and Health Policy, Christian Medical College, Vellore 632004, Tamil Nadu, India
| | - Mohmed Isaqali Karobari
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospital, Chennai 600077, Tamil Nadu, India
- Conservative Dentistry Unit, School of Dental Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian, Kota Bharu 16150, Malaysia
- Department of Restorative Dentistry & Endodontics, Faculty of Dentistry, University of Puthisastra, Phnom Penh 12211, Cambodia
| | - Suraj Arora
- Department of Restorative Dental Sciences, King Khalid University, P.O. Box 960, Abha 61421, Saudi Arabia
| | - Ahmed A. Saleh
- Department of Restorative Dental Sciences, King Khalid University, P.O. Box 960, Abha 61421, Saudi Arabia
| | - Omir Aldowah
- Prosthetic Dental Science Department, Faculty of Dentistry, Najran University, Najran 11001, Saudi Arabia
| | - Pietro Messina
- Department of Surgical, Oncological and Stomatological Disciplines, University of Palermo, 90133 Palermo, Italy
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7
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Szalewski L, Wójcik D, Bogucki M, Szkutnik J, Różyło-Kalinowska I. The Influence of Popular Beverages on Mechanical Properties of Composite Resins. MATERIALS 2021; 14:ma14113097. [PMID: 34198751 PMCID: PMC8201062 DOI: 10.3390/ma14113097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/10/2021] [Accepted: 05/31/2021] [Indexed: 12/01/2022]
Abstract
Currently, composite resins are used in many restorative procedures. Previous studies showed that drinking beverages may affect the mechanical properties such as microhardness or flexural strength of dental composite resins. The aim of the present study was to investigate the influence of common beverages on the mechanical properties of composite resins. Samples of the materials were prepared according to the ISO 4049:2010 standard and producer’s recommendations. The samples were next conditioned in tested fluids: distilled water, sparkling water, Coca-Cola, Red Bull and orange juice for 7 days. Vickers microhardness and flexural strength testing was performed after 7 days. Performed statistic tests confirmed the significance of microhardness changes of the tested materials in terms of both different conditioning of the samples and different composite materials. The mean flexural strength of composites was highest in distilled water and it was reduced after one week in different beverages. We conclude that all tested beverages influenced on Vickers microhardness of tested composite resins. Flexural strength only in one material was statistically significantly influenced by tested beverages. The results of this study should be taken into consideration by a dentist preparing recommendations for the patients after dental treatment with usage of composite material or after cementing composite based fixed dentures.
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Affiliation(s)
- Leszek Szalewski
- Department of Integrated Paediatric Dentistry, Medical University of Lublin, 20-093 Lublin, Poland
- Correspondence:
| | - Dorota Wójcik
- Department of Dental Prosthetics, Medical University of Lublin, 20-093 Lublin, Poland;
| | - Marcin Bogucki
- Department of Automation, Faculty of Mechanical Engineering, Technical University of Lublin, 20-618 Lublin, Poland;
| | - Jacek Szkutnik
- Department of Functional Masticatory Disorders, Medical University of Lublin, 20-093 Lublin, Poland;
| | - Ingrid Różyło-Kalinowska
- Department of Dental and Maxillofacial Radiodiagnostics, Medical University of Lublin, 20-093 Lublin, Poland;
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8
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Tseng CC, Lin PY, Kirankumar R, Chuang ZW, Wu IH, Hsieh S. Surface degradation effects of carbonated soft drink on a resin based dental compound. Heliyon 2021; 7:e06400. [PMID: 33869827 PMCID: PMC8035514 DOI: 10.1016/j.heliyon.2021.e06400] [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: 11/12/2020] [Revised: 01/18/2021] [Accepted: 02/25/2021] [Indexed: 11/28/2022] Open
Abstract
Dental compounds and restorative materials undergo surface degradation and erosion from exposure to a variety of dietary substances. In this study we investigated changes in the surface properties of Rebaron, a hard denture reline material (HDRM), following timed immersion in carbonated soft drinks to determine its durability in a common acidic environment. Samples were prepared and immersed in a carbonated soft drink (or its components) for 6, 12, or 24 h. Surface structure and mechanical properties were characterized using Atomic Force Microscopy (AFM). Raman spectroscopy was used to identify changes in the HDRM surface chemistry following exposure to the test solutions. AFM revealed that prolonged exposure led to pit formation and a subsequent increase in surface roughness, from 302.02 ± 30.20 to 430.59 ± 15.07 nm Ra, following a 24 h exposure. Young's modulus values decreased from 9.3 ± 7.0 to 0.53 ± 0.26 GPa under the same conditions, demonstrating a softening and embrittlement of the HDRM sample. Raman results revealed that immersion in the carbonated soft drink or acidic solution changed the nature of the HDRM structure, converting the HDRM surface chemistry from primarily hydrophobic to hydrophilic. Our study indicates that sustainability and durability of Rebaron HDRM are significantly reduced by prolonged exposure to carbonated (acidic) soft drink, resulting in deformation and degradation of the material surface.
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Affiliation(s)
- Chung-Chih Tseng
- Department of Dentistry, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung, 81357, Taiwan.,Institute of Medical Science and Technology, National Sun Yat-sen University, 70 Lien-Hai Rd., Kaohsiung, 80424, Taiwan
| | - Pei-Ying Lin
- Department of Chemistry, National Sun Yat-sen University, 70 Lien-Hai Rd., Kaohsiung, 80424, Taiwan
| | - Rajendranath Kirankumar
- Department of Chemistry, National Sun Yat-sen University, 70 Lien-Hai Rd., Kaohsiung, 80424, Taiwan
| | - Zi-Wei Chuang
- Department of Chemistry, National Sun Yat-sen University, 70 Lien-Hai Rd., Kaohsiung, 80424, Taiwan
| | - I-Hsuan Wu
- Department of Chemistry, National Sun Yat-sen University, 70 Lien-Hai Rd., Kaohsiung, 80424, Taiwan
| | - Shuchen Hsieh
- Department of Chemistry, National Sun Yat-sen University, 70 Lien-Hai Rd., Kaohsiung, 80424, Taiwan.,School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, 100 Shih-Chuan 1st Rd., Kaohsiung, 80708, Taiwan.,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 100 Shih-Chuan 1st Rd., Kaohsiung, 80708, Taiwan
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9
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Sarialioglu Gungor A, Donmez N. Dentin erosion preventive effects of various plant extracts: An in vitro atomic force microscopy, scanning electron microscopy, and nanoindentation study. Microsc Res Tech 2020; 84:1042-1052. [PMID: 33264465 DOI: 10.1002/jemt.23665] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 09/11/2020] [Accepted: 11/18/2020] [Indexed: 01/06/2023]
Abstract
The overall consumption of acidic beverages has become more common, making the prevention and treatment of dental erosion an important consideration. The aim of this in vitro study was to evaluate the effect of various plant extracts in preventing dentin erosion. Seven experimental groups (fluoride-free water, fluoride-containing mouthwash [Colgate Plax], green tea, rosehip, clove, pomegranate, and grape seed) were formed, each consisting of 20 bovine dentin samples. The specimens were exposed daily to demineralization and remineralization cycles three times per day over 5 days through a 5-min plant extract application before each erosive episode. Surface roughness, nanohardness values, and morphological changes on dentin surfaces were examined using atomic force microscopy (AFM), nanoindentation, and scanning electron microscopy (SEM). The data were subjected to Kruskal-Wallis and Friedman tests (p < .05). There were statistically significant differences between the groups in terms of nanohardness values (p < .05), except for the pomegranate and grape seed groups. The highest nanohardness value was observed in the clove group (1.24 ± 0.34 GPa), whereas the lowest nanohardness value was noted in the grape seed group (0.20 ± 0.04 GPa). The nanohardness values of positive and negative control groups after erosion cycles were statistically higher than the initial nanohardness values (p < .05).There was no statistically significant difference between the groups in surface roughness values (p > .05). Macromolecular deposits were observed both in the SEM and AFM images of the pomegranate, Colgate, and rosehip groups. It can be concluded that the clove extract group is more successful in preventing dentin erosion than the other groups. Green tea is also effective in preventing dentin erosion, similar to clove extract. The application of plant extracts may be a new treatment strategy in preventing dentin erosion. Plant extracts may also reduce the severity of existing dentin erosion. Clove and green tea extracts may present novel natural therapy potential by inhibiting dentin erosion.
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Affiliation(s)
- Ayca Sarialioglu Gungor
- Department of Restorative Dentistry, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Nazmiye Donmez
- Department of Restorative Dentistry, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey
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10
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Ozan G, Sar Sancakli H, Yucel T. Effect of black tea and matrix metalloproteinase inhibitors on eroded dentin in situ. Microsc Res Tech 2020; 83:834-842. [PMID: 32196821 DOI: 10.1002/jemt.23475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/03/2020] [Accepted: 03/08/2020] [Indexed: 01/08/2023]
Abstract
Purpose of this in situ study was to evaluate the surface properties of eroded dentin specimens activated with three different matrix metalloproteinase (MMP) inhibitors (chlorhexidine [CHX], fluoride, green tea), black tea, and water. One hundred eighty dentin samples were prepared from extracted third molars and then samples divided into six groups. Ten volunteers were carried three specimens of each group, on acrylic palatal appliances, which were fabricated exactly for them (n = 3). Erosive cycles were done by immersing appliances in cup containing Cola and was followed by rinsing with test solutions. Microhardness values were measured. Surface properties were investigated by atomic force microscopy (AFM). Lowest change in microhardness was shown in fluoride group whereas negative control group (water) had the highest change. There were no statistically significant differences among surface roughness changes (p > .05). The least change in microhardness was seen in the fluoride group (13.05 ± 8.07), while the control group showed the highest change (33.80 ± 12.42) and was statistically significant when compared to other groups (p < .05). Besides lowest depth, values were shown in fluoride group as well. AFM evaluations showed macromolecular deposits on surfaces of fluoride, CHX, and black tea groups. No superior results were detected in CHX + fluoride group and black tea showed similar surface characteristics as green tea. Mouthrinses containing not only green tea but also black tea could be beneficial for patients with exposed dentin surfaces. Catechines and theaflavins in teas could be useful for improving surface quality.
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Affiliation(s)
- Gunce Ozan
- Department of Restorative Dentistry, Istanbul University, Istanbul, Turkey
| | - Hande Sar Sancakli
- Department of Restorative Dentistry, Istanbul University, Istanbul, Turkey
| | - Taner Yucel
- Department of Restorative Dentistry, Istanbul University, Istanbul, Turkey
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11
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Hagiu A, Attin T, Schmidlin PR, Ramenzoni LL. Dose-dependent green tea effect on decrease of inflammation in human oral gingival epithelial keratinocytes: in vitro study. Clin Oral Investig 2019; 24:2375-2383. [DOI: 10.1007/s00784-019-03096-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 09/22/2019] [Indexed: 12/22/2022]
Abstract
Abstract
Objectives
This in vitro study aimed to analyze the anti-inflammatory and wound healing potential of green tea extract (GTE) in human gingival epithelial keratinocytes (HGEK) treated with lipopolysaccharides (LPS).
Materials and methods
A cell viability assay was conducted using MTT to determine nontoxic levels of GTE on immortalized HGEK. Cells were concomitantly treated with LPS (1 μg/ml) and GTE (1 mg/ml, 2.5 mg/ml, 5 mg/ml, and 10 mg/ml) to assess inflammation. Gene expression levels of inflammatory markers IL-β1, IL-6, and TNFα were measured by RT-PCR and their protein production was assessed by ELISA. The scratch wound healing assay was used to investigate the effects of different concentrations of GTE on cell migration. We also explored the effect of GTE on the induction of the Nrf2/HO-1 pathway in the cells with or without LPS.
Results
GTE at concentrations of 2.5 mg/ml, 5 mg/ml, and 10 mg/ml significantly enhanced cell viability (p < 0.05). And IL-β1, IL-6, and TNFα gene expression presented up to 10-fold decrease compared with LPS-treated cells, which was also similarly found on the protein levels. At the same concentrations, cell migration increased.
Conclusions
The mechanism results showed that GTE produced the anti-inflammatory response by activating the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway and increasing the level of anti-oxidant protein heme oxygenase-1 (HO-1).
Clinical relevance
GTE may be potentially used as oral rinse anti-inflammatory drug for treatment and prevention of oral inflammatory diseases, which is shown here by the ability to reduce the inflammation and increase in cell migration in a dose-dependent manner.
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Moda MD, Fagundes TC, Briso ALF, dos Santos PH. Analysis of the bond interface between self-adhesive resin cement to eroded dentin in vitro. PLoS One 2018; 13:e0208024. [PMID: 30475892 PMCID: PMC6258132 DOI: 10.1371/journal.pone.0208024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 11/11/2018] [Indexed: 12/03/2022] Open
Abstract
The purpose of this study was to evaluate the bonding interface between a self-adhesive resin cement to in vitro eroded dentin. Seventy-two third molars were used and divided into two groups: sound dentin and in vitro eroded dentin. The in vitro erosion was performed following a demineralization protocol, in which the specimens were immersed in a demineralizing solution for 2 minutes per cycle and remineralizing solution for 10 minutes per cycle for 9 days. Both groups were submitted to four dentin surface treatments: control group (without any treatment), 2% chlorhexidine, 20% polyacrylic acid, and 0.1 M EDTA (n = 9). Blocks of resin-based composite were bonded with RelyX U200 self-adhesive resin cement applied on the pretreated dentin surfaces. The teeth were sectioned into beams (1mm2) and submitted to microtensile bond strength testing to evaluate the bond strength of self-adhesive resin cement to dentin after 24 hours and 8 months of immersion in artificial saliva. Three specimens of each group were longitudinally cut and evaluated using confocal laser scanning microscopy to analyze the dentin/cement interface. Eroded dentin showed higher bond strength values when compared to sound dentin for the 2% chlorhexidine group (p = 0.03), 24 hours after adhesion. When considering eroded dentin, the 0.1M EDTA group showed higher bond strength values with a statistically significant difference only for the control group (p = 0.002). After 8 months of storage, the present results showed that there was no statistically significant difference between the two substrates for all experimental groups (p>0.05). Analysis of the microscopy confocal showed different types of treatments performed on dentin generally increased tags formation when compared to the control group. The eroded dentin showed a significant increase in density and depth of resinous tags when compared to sound dentin. The storage of samples for 8 months seems to have not caused significant degradation of the adhesive interface.
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Affiliation(s)
- Mariana Dias Moda
- Department of Restorative Dentistry, Araçatuba Dental School, UNESP—São Paulo State University, Araçatuba, SP, Brazil
| | - Ticiane Cestari Fagundes
- Department of Restorative Dentistry, Araçatuba Dental School, UNESP—São Paulo State University, Araçatuba, SP, Brazil
| | - André Luiz Fraga Briso
- Department of Restorative Dentistry, Araçatuba Dental School, UNESP—São Paulo State University, Araçatuba, SP, Brazil
| | - Paulo Henrique dos Santos
- Department of Dental Materials and Prosthodontics, Araçatuba Dental School, UNESP–São Paulo State University, Araçatuba, SP, Brazil
- * E-mail:
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Passos VF, Melo MASD, Lima JPM, Marçal FF, Costa CAGDA, Rodrigues LKA, Santiago SL. Active compounds and derivatives of camellia sinensis responding to erosive attacks on dentin. Braz Oral Res 2018; 32:e40. [DOI: 10.1590/1807-3107bor-2018.vol32.0040] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 04/05/2018] [Indexed: 01/09/2023] Open
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Wang YL, Chang HH, Chiang YC, Lu YC, Lin CP. Effects of fluoride and epigallocatechin gallate on soft-drink-induced dental erosion of enamel and root dentin. J Formos Med Assoc 2018; 117:276-282. [PMID: 29449065 DOI: 10.1016/j.jfma.2018.01.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/14/2018] [Accepted: 01/30/2018] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND/PURPOSE Fluoride and epigallocatechin gallate (EGCG) have been proven to prevent dental caries. The purpose of this study was to evaluate the effects of fluoride and EGCG on soft-drink-induced dental erosion in vitro. METHODS Forty enamel and dentin specimens were prepared from extracted human teeth. The specimens were divided into 4 groups and treated separately with distilled water (as control), 0.5 M sodium fluoride (NF), 400 μM EGCG (EG), and a solution containing 0.5 M NaF and 400 μM EGCG (FG). Cyclic erosive treatment was performed according to the experimental procedures. The specimens were analyzed using laser scanning confocal microscopy, scanning electron microscopy, and a microhardness tester. The data were analyzed using ANOVA and Bonferroni's post hoc test. The significance level was set at 5%. RESULTS The amount of substance loss was lower in the NF and EG groups than in the control group (p < 0.05). The erosion-caused substance loss was more pronounced in the dentin than in the enamel specimens. Surface microhardness loss was lower in the NF and EG groups than in the control group (p < 0.05). The diameter of the dentinal tubule was wider in the control group than in the NF and EG groups (p < 0.05). No combined effects were observed in the FG group. CONCLUSION Both fluoride and EGCG are effective in preventing soft-drink-induced erosion compared with the control group. Fluoride and EGCG may interfere with each other. The mechanisms of the anti-erosive effect need to be explored in the future.
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Affiliation(s)
- Yin-Lin Wang
- School of Dentistry, National Taiwan University, Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan
| | - Hao-Hueng Chang
- School of Dentistry, National Taiwan University, Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan
| | - Yu-Chih Chiang
- School of Dentistry, National Taiwan University, Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan
| | - Yu-Chen Lu
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan
| | - Chun-Pin Lin
- School of Dentistry, National Taiwan University, Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan.
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Hannas AR, Kato MT, Cardoso CDAB, Magalhães AC, Pereira JC, Tjäderhane L, Buzalaf MAR. Preventive effect of toothpastes with MMP inhibitors on human dentine erosion and abrasion in vitro. J Appl Oral Sci 2016; 24:61-6. [PMID: 27008258 PMCID: PMC4775011 DOI: 10.1590/1678-775720150289] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 12/11/2015] [Indexed: 11/22/2022] Open
Abstract
The use of gels and mouthrinses with MMP inhibitors (chlorhexidine, and green tea extract) was shown to prevent erosive wear. The aim of this study was to analyze the protective effect of toothpastes containing MMP inhibitors on dentine loss induced by erosion in vitro.
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Affiliation(s)
- Angelica Reis Hannas
- Departamento de Ciências Biológicas, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Melissa Thiemi Kato
- Departamento de Odontologia, Universidade do Sagrado Coração, Bauru, SP, Brasil
| | | | - Ana Carolina Magalhães
- Departamento de Ciências Biológicas, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - José Carlos Pereira
- Departamento de Dentística, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
| | - Leo Tjäderhane
- Medical Research Center, Oulu University Hospital, University of Oulu, Oulu, Finland
| | - Marília Afonso Rabelo Buzalaf
- Departamento de Ciências Biológicas, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, SP, Brasil
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16
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Batista GR, Rocha Gomes Torres C, Sener B, Attin T, Wiegand A. Artificial Saliva Formulations versus Human Saliva Pretreatment in Dental Erosion Experiments. Caries Res 2016; 50:78-86. [PMID: 26870948 DOI: 10.1159/000443188] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 12/04/2015] [Indexed: 11/19/2022] Open
Abstract
The aim of this study was to evaluate the erosion-preventive effect of different artificial saliva formulations and human saliva in vitro compared to human saliva in situ. In the in vitro experiment, bovine enamel and dentin specimens were stored in artificial saliva (4 different formulations, each n = 20), deionized water (n = 20) or human saliva (n = 6 enamel and dentin specimens/volunteer) for 120 min. In the in situ experiment, each of the 6 enamel and dentin specimens was worn intraorally by 10 volunteers for 120 min. The specimens were then eroded (HCl, pH 2.6, 60 s). Half of the specimens were subjected to microhardness analysis (enamel) and the determination of calcium release into the acid (enamel and dentin), while the other half were again placed in the respective medium or worn intraorally, respectively, for 120 min before a second erosion was performed. Knoop microhardness of enamel and the calcium release of enamel and dentin into the acid were again determined. Statistical analysis was conducted by two-way repeated-measures ANOVA or two-way ANOVA (α = 0.05). Enamel microhardness was not significantly different between all test groups after the first and the second erosive challenge, respectively. Enamel calcium loss was significantly lower in situ compared to the in vitro experiment, where there was no significant difference between all test groups. Dentin calcium loss was significantly lower than deionized water only after the first and than all except one artificial saliva after the second erosion. Under the conditions of this experiment, the use of artificial saliva formulations and human saliva in vitro does not reflect the intraoral situation in dental erosion experiments adequately.
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Affiliation(s)
- Graziela Ribeiro Batista
- Department of Preventive Dentistry, Periodontology and Cariology, University of Zurich, Zurich, Switzerland
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17
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Buzalaf MAR. From the bench to the market: the long, sinuous and rocky road. J Appl Oral Sci 2016; 24:1-2. [PMID: 27008251 PMCID: PMC4775003 DOI: 10.1590/1678-77572016ed001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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18
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DE MORAES MDR, CARNEIRO JRM, PASSOS VF, SANTIAGO SL. Effect of green tea as a protective measure against dental erosion in coronary dentine. Braz Oral Res 2016; 30:S1806-83242016000100213. [DOI: 10.1590/1807-3107bor-2016.vol30.0013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 06/30/2015] [Indexed: 11/22/2022] Open
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19
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Zarella B, Cardoso C, Pelá V, Kato M, Tjäderhane L, Buzalaf M. The role of matrix metalloproteinases and cysteine-cathepsins on the progression of dentine erosion. Arch Oral Biol 2015; 60:1340-5. [DOI: 10.1016/j.archoralbio.2015.06.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 05/04/2015] [Accepted: 06/14/2015] [Indexed: 10/23/2022]
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20
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KAMOZAKI MBB, PRAKKI A, PEROTE LCCC, GUTIERREZ NC, PAGANI C. The effect of CPP-ACP and Nd:YAG laser on the bond strength of softened dentin. Braz Oral Res 2015; 29:S1806-83242015000100268. [DOI: 10.1590/1807-3107bor-2015.vol29.0068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 02/06/2015] [Indexed: 11/21/2022] Open
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21
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Tjäderhane L, Buzalaf MA, Salo T. The origin of matrix metalloproteinases in attrited dentine. Arch Oral Biol 2013; 59:233-5. [PMID: 24370196 DOI: 10.1016/j.archoralbio.2013.11.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 11/21/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Leo Tjäderhane
- Institute of Dentistry, University of Oulu, Oulu University Hospital, Oulu, Finland; Institute of Dentistry, University of Turku, Turku, Finland; Nordic Institute of Dental Materials (NIOM), Oslo, Norway.
| | - Marília A Buzalaf
- Discipline of Biochemistry, Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Tuula Salo
- Institute of Dentistry, University of Oulu, Oulu University Hospital, Oulu, Finland; Institute of Dentistry, University of Helsinki, Helsinki, Finland
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Caneppele TMF, Jeronymo RDI, Di Nicoló R, de Araújo MAM, Soares LES. In Vitro assessment of dentin erosion after immersion in acidic beverages: surface profile analysis and energy-dispersive X-ray fluorescence spectrometry study. Braz Dent J 2013. [PMID: 23207852 DOI: 10.1590/s0103-64402012000400011] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to investigate the effects of some acidic drinks on dentin erosion, using methods of surface profile (SP) analysis and energy-dispersive X-ray fluorescence spectrometry (EDXRF). One hundred standardized dentin slabs obtained from bovine incisor roots were used. Dentin slabs measuring 5x5 mm were ground flat, polished and half of each specimen surface was protected with nail polish. For 60 min, the dentin surfaces were immersed in 50 mL of 5 different drinks (Gatorade®, Del Valle Mais orange juice®, Coca-Cola®, Red Bull® and white wine), 20 blocks in each drink. The pH of each beverage was measured. After the erosive challenge, the nail polish was removed and SP was analyzed. The mineral concentration of dentin surfaces was determined by means of EDXRF. Data were analyzed statistically by ANOVA and Tukey's test (α=0.05). SP analysis showed that Red-Bull had the highest erosive potential (p<0.05). EDXRF results exhibited a decrease in phosphate in the groups immersed in Red-Bull, orange juice and white wine (p<0.05), and no significant difference in calcium content between the reference surface and eroded surface. In conclusion, this study demonstrated that all studied beverages promoted erosion on root dentin and Red Bull had the highest erosive potential. There was no correlation between pH of beverages and their erosive potential and only the P content changed after erosive challenge.
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Affiliation(s)
- Taciana Marco Ferraz Caneppele
- Department of Restorative Dentistry, São José dos Campos Dental School, Univ Estadual Paulista, São José dos Campos, SP, Brazil
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Bedran-Russo AK, Pauli GF, Chen SN, McAlpine J, Castellan CS, Phansalkar RS, Aguiar TR, Vidal CMP, Napotilano JG, Nam JW, Leme AA. Dentin biomodification: strategies, renewable resources and clinical applications. Dent Mater 2013; 30:62-76. [PMID: 24309436 DOI: 10.1016/j.dental.2013.10.012] [Citation(s) in RCA: 163] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 09/20/2013] [Accepted: 10/30/2013] [Indexed: 12/11/2022]
Abstract
OBJECTIVES The biomodification of dentin is a biomimetic approach, mediated by bioactive agents, to enhance and reinforce the dentin by locally altering the biochemistry and biomechanical properties. This review provides an overview of key dentin matrix components, targeting effects of biomodification strategies, the chemistry of renewable natural sources, and current research on their potential clinical applications. METHODS The PubMed database and collected literature were used as a resource for peer-reviewed articles to highlight the topics of dentin hierarchical structure, biomodification agents, and laboratorial investigations of their clinical applications. In addition, new data is presented on laboratorial methods for the standardization of proanthocyanidin-rich preparations as a renewable source of plant-derived biomodification agents. RESULTS Biomodification agents can be categorized as physical methods and chemical agents. Synthetic and naturally occurring chemical strategies present distinctive mechanism of interaction with the tissue. Initially thought to be driven only by inter- or intra-molecular collagen induced non-enzymatic cross-linking, multiple interactions with other dentin components are fundamental for the long-term biomechanics and biostability of the tissue. Oligomeric proanthocyanidins show promising bioactivity, and their chemical complexity requires systematic evaluation of the active compounds to produce a fully standardized intervention material from renewable resource, prior to their detailed clinical evaluation. SIGNIFICANCE Understanding the hierarchical structure of dentin and the targeting effect of the bioactive compounds will establish their use in both dentin-biomaterials interface and caries management.
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Affiliation(s)
- Ana K Bedran-Russo
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA.
| | - Guido F Pauli
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Shao-Nong Chen
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - James McAlpine
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Carina S Castellan
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA; Department of Biochemistry and Dental Biomaterials, School of Dentistry, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Rasika S Phansalkar
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Thaiane R Aguiar
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
| | - Cristina M P Vidal
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
| | - José G Napotilano
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Joo-Won Nam
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Ariene A Leme
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
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In vitro evaluation of the erosive potential of viscosity-modified soft acidic drinks on enamel. Clin Oral Investig 2013; 18:769-73. [DOI: 10.1007/s00784-013-1037-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 07/02/2013] [Indexed: 11/26/2022]
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26
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Buzalaf MAR, Kato MT, Hannas AR. The role of matrix metalloproteinases in dental erosion. Adv Dent Res 2013; 24:72-6. [PMID: 22899684 DOI: 10.1177/0022034512455029] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review discusses the role of matrix metalloproteinases (MMPs) in the development of dentin erosion and the protective effects of MMP inhibitors, based on recent evidence from in vitro and in situ studies. MMPs are present in both dentin and saliva and play an important role in dentin erosion progression. Enzymatic removal of the organic matrix by MMPs increases the demineralization process, since the demineralized organic matrix has been shown to hamper ionic diffusion after an acidic challenge. Recent evidence from in vitro and in situ studies has shown a protective role of MMP inhibitors against dentin erosion and erosion plus abrasion. The inhibitors tested were green tea and its active epigallocatechin-gallate (EGCG), ferrous sulfate, and chlorhexidine. They have been tested in dentifrices, solutions, and gels. The latter led to a more pronounced protective effect against dentin erosion and erosion plus abrasion. The protection was long-lasting and could be observed after up to 10 days of severe erosive and erosive-plus-abrasive challenges in situ. Thus, the use of MMP inhibitors has emerged as an important preventive tool against dentin erosion. Clinical studies should be conducted to confirm the results obtained and to give support to the establishment of clinical protocols of use.
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Affiliation(s)
- M A R Buzalaf
- Bauru Dental School, University of São Paulo, Brazil.
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27
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Pinto SCS, Bandeca MC, Silva CN, Cavassim R, Borges AH, Sampaio JEC. Erosive potential of energy drinks on the dentine surface. BMC Res Notes 2013; 6:67. [PMID: 23422044 PMCID: PMC3599422 DOI: 10.1186/1756-0500-6-67] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 02/17/2013] [Indexed: 12/17/2022] Open
Abstract
Background Considering the current high consumption of energy drinks, the aim of the present study is to evaluate the influence of energy drinks in removing the smear layer and exposing dentinal tubules on root surface. Methods Dentine root surfaces were exposed using a diamond bur. Forty movements of scaling were performed in the area prepared in order to create a smear layer. One hundred and thirty specimens were obtained from 35 teeth. Specimens were randomly distributed into 12 groups (n = 10) and divided into subgroups according to the application: topical (n = 5) and friction (n = 5). Twelve energy drinks were evaluated: RedBull™, Burn™, TNT™, Flash Power™, Flying Horse™, Sports Drink™, Ionic™, Hot Power™, Army Power™, Gladiator™ and Bug™. Distilled water was used as a control group. The specimens were analysed by scanning electron microscopy. Results Topical application: a significant influence of energy drinks on smear layer removal was found for FlyingHorse™ and Bug™ when compared with the control group. Friction application: significant smear layer removal was found for Burn™, FlyingHorse™, Gladiator™, SportsDrinks™, when compared with the control group. Comparing the different application forms, a statistically significant difference was found for Army Power™. Conclusion Considering the significant smear layer removal, energy drinks can be an important etiological factor for cervical dentine hypersensitivity.
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Affiliation(s)
- Shelon C S Pinto
- Department of Dentistry, Araraquara Dental School, University of Sao Paulo State, Araraquara, Brazil
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MITA H, KITASAKO Y, TAKAGAKI T, SADR A, TAGAMI J. Development and evaluation of a low-erosive apple juice drink with Phosphoryl-Oligosaccharides of Calcium. Dent Mater J 2013; 32:212-8. [DOI: 10.4012/dmj.2012-256] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Evaluation of an Experimental Gel Containing Euclea natalensis: An In Vitro Study. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:184346. [PMID: 23243432 PMCID: PMC3517253 DOI: 10.1155/2012/184346] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Accepted: 09/27/2012] [Indexed: 11/30/2022]
Abstract
Objective. To evaluate the effect of an experimental gel containing Euclea natalensis extract on dentin permeability. Methods. Thirty-six dentin discs, 1-mm-thick. The discs were prepared from the coronal dentin of extracted human third molars that were divided into 3 groups (n = 10). The dentin discs in each group were treated with the groups following experimental materials: (FG): 1.23% fluoride gel, pH 4.1; (EG): Euclea natalensis extract gel, pH 4.1; (CG): control gel, pH 4.1. The gels were applied to the occlusal slide of the dentin under the following conditions: after 37% phosphoric acid and before 6% citric acid. The hydraulic conductance (HC) of each condition was determined four times using a fluid flow apparatus (Flodec). The data were analyzed using Two-way ANOVA and Tukey's test (P < 0.05). Results. The greatest mean reduction in HC was produced in group EG dentin discs (61.2%; P < 0.05). Even after acid challenge with 6% citric acid the great reduction occurred in group EG (66.0%; P < 0.05) than other groups (CG-77.1%, FG-90.8%). Conclusion. E. natalensis gel not only reduced dentin permeability, but also resisted posttreatment citric acid challenge without changing its permeability. Further research has to confirm this promising result in the clinical situation.
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