Responses of MC3T3-E1 cells to three dental resin-based restorative materials

2006 ◽  
Vol 76A (4) ◽  
pp. 765-772 ◽  
Author(s):  
Satoshi Imazato ◽  
Daisuke Horikawa ◽  
Korenori Ogata ◽  
Yoshifumi Kinomoto ◽  
Shigeyuki Ebisu
Keyword(s):  
Dental Resin ◽  
Restorative Materials

Inhibitive Effect of a New Dental Resin Composite on Enamel Artificial Caries

2014 ◽  
Vol 1058 ◽  
pp. 323-328
Author(s):  
Xin Yi Zhao ◽  
Shao Jie Hou ◽  
Shi Bao Li
Keyword(s):  
Resin Composite ◽  
Surface Hardness ◽  
Filling Material ◽  
Dental Resin ◽  
Buffer Solution ◽  
Partially Saturated ◽  
Enamel Demineralization ◽  
Restorative Materials ◽  
Before And After

Purpose To investigate the cariostatic effect of six restorative materials in vitro. Method Enamel blocks of bovine incisors were restored with six restorative materials (a conventional GIC, FujiIILC, Compoglass F, BeautifilII,Charisma and an experimental fluoride releasing resin composite) respectively with a gap of 270μm in width between each filling material and enamel. Then all restorations were immersed in a partially saturated acidic buffer solution at 37C for 3days. The surface enamel microhardness of the enamel blocks were measured before and after demineralization and the depth of enamel demineralization was measured using polarization microscope for each restoration.Results Enamel surface hardness of all restorations demonstrated significant reduced after demineralization ( p<0.05), and the order of hardness reduction is as follows: Charisma >BeautifilII≈Compoglass F≈Experimental Resin>FujiIILC>GIC ( p> 0.05). The order of the depth of enamel demineralization along the surface and the interface near the gap for the 5 materials is as follows: Charisma >BeautifilII≈Compoglass F ≈Experimental Resin>FujiIILC>GIC (P > 0.05). Conclusion The new fluoride releasing and recharging composite resin has the ability to prevent recurrent caries around the restoration and its ability is comparable to compomer materials.

scholarly journals Gambaran Penggunaan Resin Komposit dan Semen Ionomer Kaca Sebagai Bahan Restorasi di Poli Gigi Rumah Sakit Gunung Maria Tomohon Tahun 2012

e-GIGI ◽  
2013 ◽  
Vol 1 (2) ◽  
Author(s):  
Michael Sumolang
Keyword(s):  
Composite Resin ◽  
Resin Composite ◽  
Glass Ionomer Cement ◽  
Glass Ionomer ◽  
Dental Resin ◽  
Anterior Teeth ◽  
Restorative Materials ◽  
Composite Resin Restorations ◽  
Ionomer Cement ◽  
Resin Restorations

Gigi yang terserang kariesdapatdirawatdenganmenggunakanbahanrestorasi. Resin komposit dan semen ionomer kacamerupakanbahanyangdigunakanuntukperawatanrestorasi di poli gigi RS Gunung Maria Tomohon.Tujuanpenelitianiniuntukmengetahuigambaranpenggunaanbahanrestorasi resin kompositdan semen ionomerkaca di poligigi RSGunung Maria Tomohontahun 2012. Penelitianinimerupakanpenelitiandeskrpitif, data diambildarirekammedispasienrestorasidenganmetodetotal sampling.Data yang didapatyaitujumlah rekammedis pasien restorasi pada tahun 2012 sebanyak 268 danjumlahgigi yang direstorasisebanyak 387.Gigi yang direstorasimenggunakanbahan resin kompositsebanyak 207 gigi, sedangkangigi yang direstorasimenggunakan semen ionomerkacasebanyak 180 gigi.Hasilpenelitianinidibagiberdasarkanusia, jeniskelamin, elemengigidandiagnosa. Hasilpenelitianmenunjukankategoriusiadewasalebihseringmelakukanperawatanretorasi resin komposit dengan 145 gigi (70%) dan semen ionomerkaca dengan 106 gigi (58,8%) yang direstorasi, pasienperempuanlebihseringmelakukanperawatanrestorasiresin komposit dengan 117 (59,4%) dan semen ionomerkaca dengan 101 (56%) gigi yang direstorasi. Gigi bagian anterior seringdirestorasidengan menggunakan resin komposit dan gigibagian posterior seringdirestorasimenggunakan semen ionomerkaca.Hiperemiapulpamerupakanpenyakit yang paling didiagnosadan paling seringmendapatkanperawatanrestorasi resin komposit dengan 179 kasus (86%)dan semen ionomerkaca 157 kasus (87,3%).Kata Kunci:bahan restorasi, resin komposit, semen ionomerkacaABSTRACT Dental caries infected can be treated with restorative materials. Resin composites and glass ionomer cement is a material used for dental restorative treatment on poly Hospital Gunung Maria Tomohon. The purpose of this study to describe the use of composite resin restorations and glass ionomer cement in the teeth poly Hospital Gunung Maria Tomohon in 2012. This research is deskrpitif , data extracted from medical records of patients with restoration of total sampling.Data method obtained the restoration of the patient's medical record number in 2012 as many as 268 and the number of restored teeth as much as 387. Restored teeth using composite resin materials as much as 207 teeth, whereas the teeth restored with glass ionomer cement as many as 180 teeth. The results are divided based on age, sex, dental and diagnostic elements. The results showed the adult age category more often retorasi care dental resin composite with 145 (70 %) and glass ionomer cement with 106 teeth (58,8 %) were restored, female patients were more frequent maintenance of composite resin restorations with 117 (59,4 %) and glass ionomer cement with 101(56 %) restored teeth. Anterior teeth are restored using gigibagian posterior composite resin and glass ionomer cement seringdirestorasimenggunakan. Pulp hyperemia is the most diagnosed diseases and most often get care composite resin restorations with 179 cases (86 %) and glass ionomer cement 157 cases (87,3%). Keywords : restorative materials, composite resin, glass ionomer cement

A Study on Mechanical Behavior of Dental Hard Tissues and Dental Restorative Materials by Three-Point Bending Test

2014 ◽  
Author(s):  
K. J. Chun ◽  
C. Y. Kim ◽  
J. Y. Lee
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Gold Alloy ◽  
Bending Test ◽  
Dental Resin ◽  
Three Point Bending ◽  
Bending Force ◽  
Dental Restorative Materials ◽  
Restorative Materials ◽  
Dental Restorative

Dental restorative materials including amalgam, dental ceramic, gold alloy, dental resin, zirconia, and titanium alloy are used to reconstruct damaged teeth, as well as to recover their function. In this study, the mechanical properties of various dental restorative materials were determined using test specimens of identical shape and dimension under the same three-point bending test condition, and the test results were compared to enamel and dentin. The maximum bending force of enamel and dentin was 6.9 ± 2.1 N and 39.7 ± 8.3 N, and the maximum bending deflection was 0.12 ± 0.02 mm and 0.25 ± 0.03 mm, respectively. The maximum bending force of amalgam, dental ceramic, gold alloy, dental resin, zirconia, and titanium alloy were 1.9 ± 0.4 N, 2.7 ± 0.6 N, 66.9 ± 4.1 N, 2.7 ± 0.3 N, 19.0 ± 2.0 N, and 121.3 ± 6.8 N, respectively, and the maximum bending deflection was 0.20 ± 0.08 mm, 0.28 ± 0.07 mm, 2.53 ± 0.12 mm, 0.37 ± 0.05 mm, 0.39 ± 0.05 m, and 2.80 ± 0.08 mm, respectively. The dental restorative materials that possessed greater maximum bending force than that of enamel were gold alloy, zirconia, and titanium alloy. Gold alloy and titanium alloy had greater maximum bending force than dentin. The dental restorative materials that possessed greater maximum bending deflection than that of enamel were all of the dental restorative materials, and the dental restorative materials that possessed greater maximum bending deflection than that of dentin were all of the dental restorative materials except amalgam. The appropriate dental restorative materials for enamel are gold alloy and zirconia and for dentin is gold alloy concerning the maximum bending force and the maximum bending deflection. These results are expected to aid dentists in their choice of better clinical treatment and to contribute to the development of dental restorative materials that possess properties that are most similar to the mechanical properties of dental hard tissue.

Elastic Properties of Dental Resin Restorative Materials

1974 ◽  
Vol 53 (5) ◽  
pp. 1121-1126 ◽  
Author(s):  
Wayne T. Nakayama ◽  
David R. Hall ◽  
Dale E. Grenoble ◽  
J. Lawrence Katz
Keyword(s):  
Elastic Properties ◽  
Dental Resin ◽  
Restorative Materials

Determination of Endocrine Disruptor Bisphenol-A leakage from Different Matrices of Dental Resin-Based Composite Materials

2021 ◽  
Vol 17 ◽  
Author(s):  
Naser F. Al-Tannak ◽  
Fawaz Alzoubi ◽  
Fatma M. Kareem ◽  
Ladislav Novotny
Keyword(s):  
Bisphenol A ◽  
Endocrine Disruptor ◽  
Binary Solvent ◽  
Small Contribution ◽  
Dental Resin ◽  
Dental Restorative Materials ◽  
Restorative Materials ◽  
Acquity Uplc ◽  
Dental Restorative ◽  
The U.S

Background: Bisphenol A (BPA) derivatives monomers as resins are common components in dental restorative materials and materials used for orthodontic treatment. However, they are a source for BP-A leakage, which can affect adult and child health as an endocrine disruptor. Objective: This study aimed to investigate the level of BPA leakage from four selected weights (0.1, 0.2, 0.3, 0.4 mg) of five different resin combinations used in dental restorative materials. Method: The resin combinations were cured with light for 20 seconds, kept in 1 mL of acetonitrile, and sonicated for 30 minutes. Separation was achieved by using BEH C18 (1.7 μm, 2.1 x 100 mm) analytical column (Waters® Acquity UPLC) and a mobile phase composed of water and acetonitrile (68:32 v/v). Moreover, Waters® Xevo G2-SQToF coupled with Waters® Acquity UPLC system with binary Solvent Manager (I-Class) via electrospray ionization (ESI) interface was used to confirm peaks identities. Results: BPA was detected in all resin combinations and in all selected sample weights. However, BP-A was below the limit of quantification (LOQ) in all selected weights of the Filtek Z350 XT Universal Restorative System. The results show that BPA is still released from selected dental resin combinations available in the market despite the general concern about its potential adverse effects. Conclusion: Nevertheless, the amounts of BPA were within the acceptable levels indicated by the U.S. Environmental Protection Agency and the U.S. Department of Health and Human Services National Toxicology Program and represent a very small contribution to the total BPA exposure. The use of alternative materials such as high-viscosity glass ionomers, inorganic biomaterials, and ceramic would be ideal and healthier for adults and children.

scholarly journals Multifunctional Bioactive Resin for Dental Restorative Materials

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 332 ◽  
Author(s):  
Loredana Tammaro ◽  
Anna Di Salle ◽  
Anna Calarco ◽  
Ilenia De Luca ◽  
Francesco Riccitiello ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stem Cells ◽  
Dental Pulp ◽  
Hybrid Composites ◽  
Dental Pulp Stem Cells ◽  
Antibiofilm Activity ◽  
Dental Resin ◽  
Dental Restorative Materials ◽  
Restorative Materials ◽  
Dental Restorative

Resin-based composites are widely used as dental restorative materials due to their excellent properties. They must have high modulus, high hardness, and be chemically inert while minimizing moisture uptake. To fulfill these higher standard prerequisites and properties, continuous improvements in each of their components are required. This study develops novel composites with multiple biofunctions. Light-cured Bis-GMA/TEGDMA dental resin (RK)/layered double hydroxide intercalated with fluoride ions (LDH-F)/calcium bentonite (Bt) hybrid composites were prepared. The loading ratio of LDH-F to Bt was varied, ranging from 2.5/2.5 to 10/10 parts per hundred RK and structural, mechanical, and biological properties were studied. The incorporation of even small mass fractions (e.g., 2.5 wt% of LDH-F and 2.5 wt% of Bt) in RK dental resin significantly improved the mechanical properties of the pristine resin. The synthetized materials showed antibacterial and antibiofilm effects against three bacterial strains isolated from healthy volunteers’ saliva (Streptococcus spp., Bacteroides fragilis, and Staphylococcus epidermidis) without affecting its ability to induce dental pulp stem cells differentiation into odontoblast-like cells. The capability to balance between the antibiofilm activity and dental pulp stem cells differentiation in addition with improved mechanical properties make these materials a promising strategy in preventive and restorative dentistry.

scholarly journals Influence of Different Drinks on the Colour Stability of Dental Resin Composites

2009 ◽  
Vol 03 (01) ◽  
pp. 50-56 ◽  
Author(s):  
Fulya Toksoy Topcu ◽  
Gunes Sahinkesen ◽  
Kivanc Yamanel ◽  
Ugur Erdemir ◽  
Elif Aybala Oktay ◽  
...  
Keyword(s):  
Red Wine ◽  
Artificial Saliva ◽  
Colour Change ◽  
Resin Composites ◽  
Colour Stability ◽  
Dental Resin ◽  
Dental Resin Composites ◽  
Colour Measurements ◽  
Restorative Materials ◽  
Colour Changes

ABSTRACTObjectives: The objective of this study was to evaluate the discolouration effects of artificial saliva, granule lemon juice, coffee (without sugar), coca cola, sour cherry juice, fresh carrot juice and red wine on resin-based composite materials that are commonly used in restorative dentistry.Methods: Colour of four brands of resin composites (Filtek Z 250 (3M Espe), Filtek Supreme (3M Espe), Quadrant (Cavex), Charisma (Heraeus-Kulzer)) of A2 shade was measured after one day of immersion in eight different solutions. Colour measurements were obtained by using a XL-20 Trismus Colourimeter and colour differences (�E) were estimated. For statistical evaluation, analysis of variance (ANOVA), Dunnett and Tukey tests were used at a significance level of 0.05.Results: For the four restorative materials tested, the lowest ΔE values were observed in the artificial saliva, while ΔE values were the highest in red wine group. When comparing the four different restorative materials, Filtek Supreme exhibited the least colour changes whereas Filtek Z250 was the least colour-stable.Conclusions: Dental resin composites and drinking solutions were significant factors that may affect the colour stability. After immersion for one day, all materials showed visible colour changes. The red wine solution exhibited more staining than others in three groups. Filtek Supreme showed significantly the least colour change due to its nano particle sizes. (Eur J Dent 2009;3:50-56)

Restorative materials and their relationship to tooth structure

2015 ◽  
Author(s):  
Avijit Banerjee ◽  
Timothy F. Watson
Keyword(s):  
Molecular Weight ◽  
Adhesive Bonding ◽  
Materials Science ◽  
Resin Composites ◽  
Dental Resin ◽  
Tooth Structure ◽  
Restorative Materials ◽  
Acid Etch ◽  
Methacrylate Monomers ◽  
Filler Particles

Modern restorative materials can be classified in several ways, in terms of their retention (chemically adhesive, macro-, micro- or even nanomechanical), their chemistry (e.g. resin-based vs. acid–base reaction, filler particles), or their clinical properties (e.g. aesthetics, strength, handling). It is essential that these materials are considered closely with the histological substrate to which they will adhere or with which they will interact, in order to understand the complexities of each system and their potential clinical uses. This chapter will outline and discuss aspects of dental materials science to enable the reader to understand and appreciate the links with relevant histology and relate this to the clinical aspects of minimally invasive operative dentistry. Also discussed is dental amalgam, still a popular restorative material among many dentists worldwide, although clinical indications for its use are becoming more limited as treatment rationales change and adhesive materials improve. This text will require supplementation from suitable dental histology and detailed dental material science texts. Dental resin composites are aesthetic, plastic adhesive restorative materials that consist of co-polymerized methacrylate-based resin chains embedding inert filler particles (conferring strength and wear resistance) and requiring a separate adhesive (bonding agent) to micro-/ nano-mechanically bond them to either enamel or dentine, respectively. However, not all modern dental composites are based purely on this methacrylate resin chemistry (see Section 7.2.6). Therefore the term ‘composite resin’ is inappropriate and should not be used. Resin composites have developed over the past 50 years, after the introduction of the acid-etch technique (Buonocore, 1955) and methacrylate monomers (Bowen’s resin—Bis-GMA (1971); see Section 7.2.2). The unset (or uncured) material consists of a mixture of several different types of resin methacrylate monomers, most of which are hydrophobic (water-hating) in nature (see Figure 7.1). The monomer chain length affects certain properties of the resin composite:… • Viscosity (or flowability) of the material. This is important in order to minimize voids trapped within the uncured composite during placement and packing within the depths of a cavity (the stiffer the consistency, the greater the risk of trapping air voids). The shorter the uncured monomer length (and therefore the lower the molecular weight), the lower is its viscosity. Often shorter-length, lower-molecular- weight methacrylate monomers form the basis of the resin chemistry of flowable resin composites, and other diluent molecules may be added.

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