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Journal articles on the topic 'Dentin layers'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Mai, S., Y. K. Kim, J. Kim, et al. "In vitro Remineralization of Severely Compromised Bonded Dentin." Journal of Dental Research 89, no. 4 (2010): 405–10. http://dx.doi.org/10.1177/0022034510363662.

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Biomimetic remineralization is potentially useful for the remineralization of incompletely resin-infiltrated collagen matrices created by etch-and-rinse adhesives. In this study, we tested the hypothesis that structurally altered dentin collagen cannot be remineralized to the same hierarchical order and dimension seen in structurally intact dentin collagen. The remineralization medium consisted of a set Portland cement/simulated body fluid system containing polycarboxylic acid and polyvinylphosphonic acid as biomimetic analogs. Remineralization of air-dried, collapsed hybrid layers was apparen

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2

Ahmedbeyli, R. M., A. M. Safarov, F. Y. Mamedov, C. R. Ahmedbeyli, and N. N. Kononkova. "Influence of fluorinated and iodized salt on mineral composition of deciduous teeth formed in biogeochemical deficiency of fluoride and iodide." Kazan medical journal 97, no. 4 (2016): 565–71. http://dx.doi.org/10.17750/kmj2015-565.

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Aim. To study the content of Ca, P, F and I in enamel and dentin composition of deciduous teeth, which are formed in fluoride and iodide deficiency, and its dynamics on the background of the 3-year consumption of fluorinated and iodized salt.Methods. The mineral composition of the deciduous teeth enamel and dentin of 6-12 years old children, born and living in conditions of biogeochemical deficiency of fluoride (0.02-0.08 ppm F in water) and iodide (0.033-0.005 ppm I in water) before and after consumption of fluorinated and iodized salt containing sodium fluoride 300±50 ppm F and potassium iod

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3

Chowdhury, Abu Faem Mohammad Almas, Rafiqul Islam, Arefin Alam, et al. "Variable Smear Layer and Adhesive Application: The Pursuit of Clinical Relevance in Bond Strength Testing." International Journal of Molecular Sciences 20, no. 21 (2019): 5381. http://dx.doi.org/10.3390/ijms20215381.

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The removal or modification of smear layers that cover the dentin is critical to allow the penetration of adhesive molecules and to ensure a strong bond between resin and dentin. Aiming to establish a model for clinically-relevant dentin-bond testing, we evaluated the effects of smear layers created by abrasives having similar coarseness (180-grit SiC paper; fine-grit diamond bur) and application modes (single application; double application) on the microtensile bond strengths (µTBS) of two currently available universal adhesives (G-Premio Bond; Scotchbond Universal Adhesive) and a two-step se

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Oliveira, Cerida Aurelia Rodrigues, Fabiana Mantovani Gomes França, Roberta Tarkany Basting, Cecília Pedroso Turssi, and Flavia Lucisano Botelho do Amaral. "Effect of Double Coating of One-step Self-etching Adhesive on Micromorphology and Microtensile Bond Strength to Sound vs Demineralized Dentin." Journal of Contemporary Dental Practice 15, no. 4 (2014): 385–91. http://dx.doi.org/10.5005/jp-journals-10024-1549.

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ABSTRACT Aim The purpose of the present study was to evaluate (1) the one-step adhesive system application method (doubling the adhesive coatings) in regard to microtensile bond strength (MTB) and (2) the interfacial morphology of one-step adhesives to sound vs demineralized dentin. Materials and methods Forty dentin fragments were randomly allocated to 2 groups: D. demineralized dentin and S. sound dentin. Specimens were also subdivided into 2 groups (n = 10), according to the one-step adhesive [AEO (Adper Easy One), 3M ESPE] application method: M, According to the manufacturer's instructions

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Fukushima, T., and T. Horibe. "A Scanning Electron Microscopic Investigation of Bonding of Methacryloyloxyalkyl Hydrogen Maleate to Etched Dentin." Journal of Dental Research 69, no. 1 (1990): 46–50. http://dx.doi.org/10.1177/00220345900690010701.

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Three types of methacryloyloxyalkyl hydrogen maleates-2-(methacryloyloxy)ethyl hydrogen maleate (2MEM), 1-(methacryloyloxymethyl)ethyl hydrogen maleate (MMEM), and 1-(methacryloyloxymethyl)propyl hydrogen maleate (MMPM)-were prepared for use as bonding agents. The relationships between the thickness of an acid-proof dentin layer and the bond strength and chemical structure of the synthesized monomers were investigated. The bond strengths of 2MEM/composite system to dentin treated with either 37% phosphoric acid solution or 10% citric acid-3% ferric chloride solution (10-3 solution) were superi

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6

Yuan, Y., Y. Shimada, S. Ichinose, A. Sadr, and J. Tagami. "Effects of Dentin Characteristics on Interfacial Nanoleakage." Journal of Dental Research 86, no. 10 (2007): 1001–6. http://dx.doi.org/10.1177/154405910708601016.

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Water emanating from dentinal tubules during air-drying and light-curing of adhesives leads to entrapment of droplets at the resin-dentin interface and contributes to nanoleakage. This study tested the null hypothesis that characteristics of substrate dentin and type of adhesive used for bonding would not affect the occurrence of nanoleakage. Three self-etch adhesives were used to bond to 4 types of dentin with different characteristics in 12 groups. After silver challenge, nanoleakage percentage was measured within the hybrid layer of each sample. The deep dentin cut perpendicular to tubules

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7

Tay, F. R., D. H. Pashley, N. Hiraishi, et al. "Tubular Occlusion Prevents Water-treeing and Through-and-Through Fluid Movement in a Single-bottle, One-step Self-etch Adhesive Model." Journal of Dental Research 84, no. 10 (2005): 891–96. http://dx.doi.org/10.1177/154405910508401004.

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Water entrapment occurs at resin-dentin interfaces of one-step self-etch adhesives. We hypothesized that by preventing water fluxes from dentin, any water entrapment would be attributed to incomplete removal of adhesive solvents. We tested this hypothesis by bonding to transparent carious dentin containing occluded dentinal tubules. An experimental single-bottle, one-step self-etch adhesive was applied to flat surfaces of caries-affected dentin surrounded by sound dentin, with or without pulpal pressure. Resin-dentin interfaces were examined with TEM after silver-impregnation. Although caries-

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8

Bakitian, Fahad. "Flexural Strength of Translucent Zirconia Materials Produced with Different Multilayer Technologies: An In Vitro Study." International Journal of Dentistry 2024 (March 27, 2024): 1–7. http://dx.doi.org/10.1155/2024/8410101.

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Objective. To evaluate the flexural strength of two translucent multilayered zirconia materials produced with different multilayer technologies. Methodology. Eighty bar-shaped zirconia specimens were prepared from two different multilayered zirconia materials (IPS e.max® ZirCAD Prime and KATANA™ Multilayered Zirconia HTML) and divided into eight groups (n = 10) based on the materials used and the individual layers of the disc for each material: Dentin Prime, Transition Prime, Translucent Prime, Multilayered Prime, Dentin HTML, Transition HTML, Translucent HTML, and Multilayered HTML. The bar-s

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9

Gu, L. S., X. Cai, J. M. Guo, et al. "Chitosan-Based Extrafibrillar Demineralization for Dentin Bonding." Journal of Dental Research 98, no. 2 (2018): 186–93. http://dx.doi.org/10.1177/0022034518805419.

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Instability of resin-dentin bonds is the Achilles’ heel of adhesive dentistry. To address this problem, a chelate-and-rinse extrafibrillar dentin demineralization strategy has been developed that keeps intrafibrillar minerals within collagen fibrils intact to prevent activation of endogenous proteases that are responsible for collagen degradation within hybrid layers. The objective of the present study was to evaluate the potential of using chitosan >40 kDa as an antimicrobial extrafibrillar dentin-chelating agent to enhance bond durability. Transmission electron microscopy provided evidenc

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Oancea, Luminita, Alexandru Petre, Mihai Burlibasa, Eugenia Eftimie Totu, and Corina Marilena Cristache. "Variability in Colour Reproduction of Metal-Ceramic Crowns." Revista de Chimie 69, no. 10 (2018): 2655–61. http://dx.doi.org/10.37358/rc.18.10.6600.

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The aim of the present study was to objectively assess the variability in color reproduction of metal-ceramic (MC) single crowns fabricated by blending different color of opaque and body ceramic in order to point out which shade of the ceramic layers influences mostly the final color of the restorations. Eight nickel-chromium ceramic metal alloy copings were fabricated, on the same cast, following by blending the ceramic for the specific A3 color as follows: one reference ceramic (R) was blended, according to the producer s recommendation, and seven tests crowns have been build-up by consideri

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Funk, Bernhard, Sharonit Sahar-Helft, David Kirmayer, Michael Friedman, and Doron Steinberg. "Sustained-Release Fillers for Dentin Disinfection: An Ex Vivo Study." International Journal of Dentistry 2019 (May 22, 2019): 1–9. http://dx.doi.org/10.1155/2019/2348146.

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Enterococcus faecalis is the most commonly recovered species from failed root canal treatments. In this study, we tested the capability of a novel intracanal sustained-release filler (SRF) containing cetylpyridinium chloride (CPC) to disinfect dentinal tubules of segmented human tooth specimens. Human dental root specimens were infected with E. faecalis V583 for 3 weeks in a static environment. The tested intracanal medicaments were SRF-CPC and calcium hydroxide (CH). Each medicament was introduced into the canal of the dental specimen and incubated for 7 days. The bacteriological samples were

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12

Magnus, Larissa, Marisa Maltz, Caren Bavaresco, Lucelen F. Bastos, and Lina N. Hashizume. "Biochemical composition of carious dentin and different layers of sound dentin." Journal of Oral Science 55, no. 2 (2013): 133–37. http://dx.doi.org/10.2334/josnusd.55.133.

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Tjäderhane, L. "Dentin Bonding: Can We Make it Last?" Operative Dentistry 40, no. 1 (2015): 4–18. http://dx.doi.org/10.2341/14-095-bl.

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SUMMARY In dentin bonding, contemporary dental adhesive systems rely on formation of the hybrid layer, a biocomposite containing dentin collagen and polymerized resin adhesive. They are usually able to create at least reasonable integrity of the hybrid layer with high immediate bond strength. However, loss of dentin-bonded interface integrity and bond strength is commonly seen after aging both in vitro and in vivo. This is due to endogenous collagenolytic enzymes, matrix metalloproteinases, and cysteine cathepsins, responsible for the time-dependent loss of hybrid layer collagen. In addition,

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14

Yamamoto, Ei, Nobuhiro Kato, and Shigeki Hontsu. "Adhesive Evaluation by Brushing Tests for Hydroxyapatite Films Fabricated on Dentins Using a Water Mist Assisted Er:YAG Laser Deposition Method." Key Engineering Materials 758 (November 2017): 97–104. http://dx.doi.org/10.4028/www.scientific.net/kem.758.97.

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Hydroxyapatite (HAp) is one of the main structural components in tooth. Therefore, the HAp is an ideal material to repair tooth substances. However, it has not yet been realized that tooth enamel and dentin are artificially repaired using the HAp in operative dentistry. We have proposed and developed a tooth restoration technique with intraoral laser ablation using an Er:YAG (Erbium: Yttrium-Aluminum-Garnet) laser in order to fabricate HAp films on tooth surfaces in the atmosphere at room temperature. Although HAp thin films were formed on dentin surfaces using the Er:YAG laser deposition meth

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15

Lenzi, Tathiane L., Camila de Almeida B. Guglielmi, Victor E. Arana-Chavez, and Daniela P. Raggio. "Tubule Density and Diameter in Coronal Dentin from Primary and Permanent Human Teeth." Microscopy and Microanalysis 19, no. 6 (2013): 1445–49. http://dx.doi.org/10.1017/s1431927613012725.

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AbstractThis study compared dentinal tubule density and diameter of human primary and permanent teeth at different depths of the coronal dentin. Crowns of eight primary second molars and eight permanent third molars were serially sectioned into three disks of ~0.5 mm thickness (superficial, middle, and deep layers), perpendicular to the long axis. Tubule density and diameter were evaluated in 2,000× and 3,000× magnifications by scanning electron microscopy. Data obtained were subjected to two-way repeated measures ANOVA and Tukey's post hoc test (α = 0.05). Tubule density was greater in primar

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16

Mahdi, Huda Raad, and Omed Ikram Shihab. "Teeth Structure Analysis of Primary Teeth in Children with Congenital Heart Disease (Ventricular Septal Defect) in Erbil City." Erbil Dental Journal 7, no. 2 (2024): 200–207. https://doi.org/10.15218/edj.2024.22.

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Objective: This study is performed to find out any differences in the chemical composition of primary teeth between children with ventricular septal defect (VSD), and those without (VSD) in Erbil city. Methods: Children enrolled in this study were divided into two groups—group I (no VSD) and Group II (VSD). The collected teeth were (n=22) in each group. The structural and chemical composition of enamel and dentin were examined by scanning electron microscope/energy-dispersive x-ray (SEM/EDEX). An unpaired t-test was used in statistical analysis. P<0.0001 was considered as significant. Resul

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17

Hebling, Josimeri, Débora LS Scheffel, Cláudia Huck, et al. "Uninfiltrated Collagen in Hybrid Layers produced after Reduced Acid-etching Time on Primary and Permanent Dentin." Journal of Contemporary Dental Practice 17, no. 10 (2016): 861–66. http://dx.doi.org/10.5005/jp-journals-10024-1945.

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ABSTRACT Aim This study evaluated the influence of acid-etching time on collagen exposure in adhesive interfaces established on primary and permanent dentin. Materials and methods Flat dentin surfaces were produced on sound primary molars and premolars (n = 8). The surfaces were divided into mesial and distal halves, and each half was etched with phosphoric acid for 5 or 15 seconds. The teeth were randomly allocated into two groups according to the adhesive system applied: Prime & Bond NT or Prime & Bond 2.1. After the adhesive application, the specimens were processed for Goldner's tr

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18

Boscato, Noéli, Fernando Gabriel Hauschild, Marina da Rosa Kaizer, and Rafael Ratto de Moraes. "Effectiveness of Combination of Dentin and Enamel Layers on the Masking Ability of Porcelain." Brazilian Dental Journal 26, no. 6 (2015): 654–59. http://dx.doi.org/10.1590/0103-6440201300463.

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This study evaluated the masking ability of different porcelain thicknesses and combination of enamel and/or dentin porcelain layers over simulated background dental substrates with higher (A2) and lower (C4) color values. Combination of the enamel (E) and dentin (D) monolayer porcelain disks with different thicknesses (0.5 mm, 0.8 mm, and 1 mm) resulted in the following bilayer groups (n=10): D1E1, D1E0.8; D1E0.5; D0.8E0.8; D0.8E0.5, and D0.5E0.5. CIELAB color coordinates were measured with a spectrophotometer. The translucency parameter of mono and bilayer specimens and the masking ability e

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19

Chiaraputt, S., S. Mai, B. P. Huffman, et al. "Changes in Resin-infiltrated Dentin Stiffness after Water Storage." Journal of Dental Research 87, no. 7 (2008): 655–60. http://dx.doi.org/10.1177/154405910808700704.

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Plasticization of polymers by water sorption lowers their mechanical properties in a manner that is predictable by the polarity of their component resins. This study tested the hypothesis that when adhesive resins were used to create resin-infiltrated dentin, the reductions in their flexural moduli after water storage would be lowered proportional to their hydrophilic characteristics. Three increasingly hydrophilic resin blends were used to fabricate polymer beams and macro-hybrid layer models of resin-infiltrated dentin for testing with a miniature three-point flexure device, before and after

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20

Brackett, M. G., F. R. Tay, W. W. Brackett, et al. "In Vivo Chlorhexidine Stabilization of Hybrid Layers of an Acetone-based Dentin Adhesive." Operative Dentistry 34, no. 4 (2009): 379–83. http://dx.doi.org/10.2341/08-103.

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Clinical Relevance Extensive degradation of dentin hybrid layers formed with an acetone-based dentin adhesive beneath Class I resin composite restorations was evident after one year unless the teeth received an application of 2% chlorhexidine digluconate after etching.

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21

Tay, F. R., D. H. Pashley, R. R. Kapur, et al. "Bonding BisGMA to Dentin—a Proof of Concept for Hydrophobic Dentin Bonding." Journal of Dental Research 86, no. 11 (2007): 1034–39. http://dx.doi.org/10.1177/154405910708601103.

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The use of TEGDMA as a diluent comonomer in the formulation of hydrophobic adhesives for ethanol wet-bonding is a concern, due to its leaching potential, higher water sorption, and bio-incompatibility. This study tested the hypothesis that hydrophobic bonding to acid-etched dentin may be accomplished with the use of ethanol-solvated BisGMA only. Phosphoric-acid-etched, oxalate-occluded, deep coronal dentin bonded under 20 cm water pressure with experimental BisGMA adhesives by ethanol wet-bonding exhibited tensile strengths that were not significantly different from that achieved with OptiBond

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Dačić, Stefan, Aleksandar Mitić, Jelena Popović, Dragica Simonović Dačić, and Marko Igić. "Ultrastructure of adhesive bond of composite to dentin." Acta Facultatis Medicae Naissensis 31, no. 1 (2014): 67–73. http://dx.doi.org/10.2478/afmnai-2014-0007.

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SUMMARY Ultrastructure of adhesive bond is a significant indicator of the efficiency of the bond between material and dental tissue. Bonding between composite and hard dental tissue is also most commonly assessed by measuring bonding strength or by absence of marginal gap along restoration interface. The aim of this investigation was to estimate ultrastructural features of the bond between composite materials and dentin after using two adhesive techniques. Twenty Class V cavities on extracted teeth were prepared and restored for scanning electron microscope (SEM) analysis of composite bonding

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Mlakar, Nina, Zlatko Pavlica, Milan Petelin, Janez Štrancar, Petra Zrimšek, and Alenka Pavlič. "Animal and human dentin microstructure and elemental composition." Open Medicine 9, no. 3 (2014): 468–76. http://dx.doi.org/10.2478/s11536-013-0295-x.

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AbstractAnimal teeth are a common model in studies on dentin adhesive materials. The aim of this study was to compare microstructural parameters (density and diameter of dentinal tubules (DT), peritubular dentin (PTD) thickness, PTD and intertubular dentin (ITD) surface area) and chemical characteristics of canine, porcine, equine, and human root dentin. The middle layers of dentin were harvested just below a cemento-enamel junction from incisors and investigated by means of scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDXS). SEM evaluation of the specimens reve

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Hebling, J., D. H. Pashley, L. Tjäderhane, and F. R. Tay. "Chlorhexidine Arrests Subclinical Degradation of Dentin Hybrid Layers in vivo." Journal of Dental Research 84, no. 8 (2005): 741–46. http://dx.doi.org/10.1177/154405910508400811.

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The recent paradigm that endogenous collagenolytic and gelatinolytic activities derived from acid-etched dentin result in degradation of hybrid layers requires in vivo validation. This study tested the null hypothesis that there is no difference between the degradation of dentin bonded with an etch-and-rinse adhesive and that in conjunction with chlorhexidine, an MMP inhibitor, applied after phosphoric-acid-etching. Contralateral pairs of bonded Class I restorations in primary molars of clinical subjects were retrieved after a six-month period of intra-oral functioning and processed for transm

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Leme-Kraus, A. A., R. S. Phansalkar, M. C. dos Reis, et al. "Dimeric Proanthocyanidins on the Stability of Dentin and Adhesive Biointerfaces." Journal of Dental Research 99, no. 2 (2019): 175–81. http://dx.doi.org/10.1177/0022034519892959.

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A dentin biomodification strategy with selective proanthocyanidin (PAC)–enriched extracts reinforces dentin and dentin-resin interfaces. Enrichment of the extracts according to the degree of polymerization allows exploration of bioactive principles of PACs and structure-activity relationships. This study investigated the sustained dentin matrix biomodification and dentin-resin bioadhesion of 2 fractions consisting exclusively of B-type PAC dimers with or without a single galloyl motif (specifically, DIMERG and DIMERNG) and their precursor material, enriched grape seed extract (e-GSE; Vitis vin

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26

Roßgardt, Jessica, Laura Beate Heilen, Kathrin Büttner, Jutta Dern-Wieloch, Jörg Vogelsberg, and Carsten Staszyk. "The Equine Dental Pulp: Histomorphometric Analysis of the Equine Dental Pulp in Incisors and Cheek Teeth." Veterinary Sciences 9, no. 6 (2022): 261. http://dx.doi.org/10.3390/vetsci9060261.

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To maintain a healthy and functional status, equine hypsodont teeth have to produce lifelong large amounts of subocclusal dentin to prevent occlusal pulp exposure, which is caused by occlusal wear. To examine the cyto- and histological components that guarantee the lifelong high productivity of equine pulp, a limited number of ten incisors and ten cheek teeth from seven adult horses (aged 5 to 24 years) and five foals were sampled for preliminary histomorphometric and histomorphological evaluations. Independently of age, the equine dental pulp featured constant layers of predentin and odontobl

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Eugénio, S., M. Sivakumar, and Rui Vilar. "Surface Treatment of Human Dentin by KrF Laser." Materials Science Forum 514-516 (May 2006): 1044–48. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.1044.

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In the present work, dentin samples extracted from human molar teeth were treated with 248 nm wavelength pulsed laser radiation at fluences between 0.5 and 20 J/cm2. The surfaces were characterised by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and x-photoelectron spectroscopy (XPS). Two distinct behaviours were observed in what concerns the evolution of surface morphology with fluence and number of pulses. In some samples the surface remained flat, independently of the fluence and covered by a layer of resolidified material and redeposited ablation parti

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Ferreira, Joao Cardoso, Patrícia T. Pires, Álvaro F. de Azevedo, Sofia Arantes-Oliveira, Mário J. Silva, and Paulo R. de Melo. "Morphology of the Dentin–resin Interface yielded by Two-step Etch-and-rinse Adhesives with Different Solvents." Journal of Contemporary Dental Practice 18, no. 10 (2017): 947–58. http://dx.doi.org/10.5005/jp-journals-10024-2155.

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ABSTRACT Aim The study aimed to analyze the morphology of the dentin–resin interface yielded by two-step etch-and-rinse adhesive systems with different solvents and compositions. Materials and methods A total of 32 dentine disks were prepared and randomly assigned to four groups of one-bottle etchand-rinse adhesive systems containing different solvents: group I, Adper Scotchbond-1XT™ (ethanol/water); group II, XP-Bond™ (tertiary butanol); group III, Prime and Bond NT® (acetone); and group IV, One Coat bond® (5% water). Adhesive systems were applied onto dentin disks, which were then thermal cy

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Shamseddine, Loubna, and Zeina Majzoub. "Relative Translucency of a Multilayered Ultratranslucent Zirconia Material." Journal of Contemporary Dental Practice 18, no. 12 (2017): 1099–106. http://dx.doi.org/10.5005/jp-journals-10024-2183.

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ABSTRACT Aim The aim of this study was to compare the translucency parameter (TP) of ultratranslucent multilayered (UTML) zirconia according to thickness and layer level. Materials and methods Rectangles of UTML zirconia with four layers [dentin layer (DEL), first transitional layer (FTL), second transitional layer (STL), and enamel layer (ENL)] and four different thicknesses (0.4, 0.6, 0.8, and 1 mm) were milled from blanks. Digital images were taken in a dark studio against white and black backgrounds under simulated daylight illumination and international commission on illumination (CIE) La

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Kalaiselvam, Rajeswari, Lokhasudhan Govindaraju, Jayasooryan Sp Thiyagarajan, Swetha Perumal, and Mathan Rajan Rajendran. "Influence of glycolic acid as a chelating agent for smear layer removal and its effect on the microhardness of root canal dentin – A systematic review." Journal of Conservative Dentistry and Endodontics 28, no. 2 (2025): 112–18. https://doi.org/10.4103/jcde.jcde_679_24.

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Abstract This study aimed to evaluate the effect of glycolic acid (GA) as a chelating agent on the removal of smear layers and the microhardness of root dentin. This review followed Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, and study quality was assessed using a modified Joanna Briggs Institute (JBI) tool. Two authors independently conducted an electronic search across four databases, supplemented by examining the reference lists of the included articles. A total of five in-vitro studies having variable concentrations (5%, 10%, and 17%) of GA were chosen fo

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Polyakova, Olga L., Natalya N. Chuchkova, Marina V. Smetanina, Viktor M. Chuchkov, and Natalia V. Kormilina. "Histomorphological State of the Pulpodentin Complex During Permanent Teeth Eruption under Conditions of Ecological and Technogenic Stress." Acta medica Eurasica, no. 4 (December 27, 2024): 56–63. https://doi.org/10.47026/2413-4864-2024-4-56-63.

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The timing, duration and quality of permanent teeth eruption are directly dependent on the morphological characteristics of dental tissues, whose formation is determined by the conditions of formation. The aim is a histomorphological study of the pulpodentin complex of a tooth during permanent teeth eruption in children and adolescents living under environmental and technogenic stress conditions. Materials and methods. The object of the study is the dental material of children and adolescents of Udmurtia at the age of 5 years (eruption beginning) and at the age of 14 years (eruption completed)

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Liu, G., C. Wu, W. R. Abrams, and Y. Li. "Structural and Functional Characteristics of the Microbiome in Deep-Dentin Caries." Journal of Dental Research 99, no. 6 (2020): 713–20. http://dx.doi.org/10.1177/0022034520913248.

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Dental caries is a cariogenic bacteria-mediated, fermentable carbohydrate-driven dynamic disease. The new ecological hypothesis for dentin caries suggests that an alteration in the microbial community and the presence of specific metabolic pathway genes contribute to the initiation and progression of caries. This study aimed to determine the structural and functional characteristics of a microbial community of human deep-dentin carious lesions. Sixteen deep-dentin carious lesions were obtained from the first permanent molars of 8 patients aged 9 to 18 y. Shotgun metagenomic sequencing was used

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Falahatkar, S., A. Nouri-Borujerdi, and M. Najafi. "Stress behaviour across human tooth by temperature gradient resulting of laser irradiation." Journal of Mechanical Engineering and Sciences 14, no. 1 (2020): 6218–28. http://dx.doi.org/10.15282/jmes.14.1.2020.01.0486.

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The authors report the simulation of temperature distribution and thermally induced stress in the premolar tooth under ND-YAG pulsed laser beam. The Three-Phase-Lag (TPL) non-Fourier model is proposed to describe the heat conduction in the human tooth with nonhomogeneous inner structures. A premolar tooth comprising enamel, dentin, and pulp with real shapes and thicknesses are considered and a numerical method of finite difference was adopted to solve the time-dependent TPL bio-heat transfer, strain and stress equations. The surface heating scheme is applied for simulation of laser therapy. Th

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Ferreira, Sandro, Tiago Rodrigues, Mariana Nunes, et al. "Improving Bonding Protocols: The Effect of Selective Dentin Etching with Two Different Universal Adhesives—An In Vitro Study." Polymers 17, no. 9 (2025): 1215. https://doi.org/10.3390/polym17091215.

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Universal adhesives can be applied in versatile bonding strategies, with selective dentin etching (SDE) emerging as a promising approach for enhancing dentin–adhesive interfaces. This study evaluated the immediate adhesive interface to dentin of two universal adhesives (OptibondTM Universal and Futurabond M+) with an SDE strategy. Sixty human molars were randomly assigned to six experimental groups (n = 10): control (self-etch strategy), SDE, and SDE3 (SDE with three adhesive layers). After dentin exposure and smear layer simulation, adhesives were applied, followed by composite resin restorat

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Untila, Eduard, Lilian Şaptefraţi, and Valeriu Burlacu. "Treatment of deep dental decay with Zn-BIOR. Histological study." Journal of Stomatological Medicine, no. 4(60) (March 2022): 59–64. http://dx.doi.org/10.53530/1857-1328.21.60.06.

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The deep dental decay represents the last stage of carious disease, characterized by extensive affectation of hard dental tissues, capturing the deep layers of the dentin (parapulpal dentin) and represents the most severe stage of demineralization and destruction of the hard tissues of the tooth. The higher rate of the complications of the deep dental decay treatment motivates the creation of new remedies and algorithms of work, which will ensure the formation of a tertiary dentin pontoon in order to isolate the pulpal body from decay cavity. Thus, the effect of reducing pulpal inflammation wo

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Brackett, W. W., F. R. Tay, M. G. Brackett, A. Dib, R. J. Sword, and D. H. Pashley. "The Effect of Chlorhexidine on Dentin Hybrid Layers In Vivo." Operative Dentistry 32, no. 2 (2007): 107–11. http://dx.doi.org/10.2341/06-55.

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Clinical Relevance Degradation of dentin hybrid layers in Class I resin composite restorations is minimal over six months but is lessened by the application of 2% chlorhexidine digluconate after etching.

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Nascimento, Tiago Elias, Luis Eduardo Souza-Flamini, Regina Guenka Palma-Dibb, et al. "Morphological Study and Analysis of Microhardness and Permeability of the Furcation of Maxillary Premolars." Brazilian Dental Journal 27, no. 5 (2016): 562–67. http://dx.doi.org/10.1590/0103-6440201600935.

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Abstract The morphology, microhardness and dentin permeability of the furcation region of maxillary premolars were evaluated. Ten premolars were cut lengthwise and the furcation region was delimited. In one group (n=10) microhardness was measured in the buccal, central and palatal regions, in the outer middle and inner layers of the furcation, and in the buccal and palatal regions adjacent to the furcation. Knoop hardness was tested with 10 g load for 15 s. Data were analyzed statistically by ANOVA and Tukey-Kramer test (a=0.05). In the other group (n=10) confocal microscopy was used to study

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Fylenko, B. M. "ETHIOPATHOGENETIC PARALLELS OF MORPHOLOGICAL CHANGES IN CHRONIC DENTAL CARIES AND ITS COMPLICATIONS." Ukrainian Dental Almanac, no. 2 (June 26, 2020): 40–46. http://dx.doi.org/10.31718/2409-0255.2.2020.06.

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Tooth decay is a global health problem and a major cause of tooth loss in the adult population. Currently, the most recognized theory of dental caries development is the chemical-parasitic theory of V.D. Miller that was suggested in 1884, and is relevant to date. According to this theory, oral microorganisms are capable of converting food carbohydrates to acids, which in turn dissolve the calcium phosphates present in the enamel, causing its demineralization. Dental plaque is considered the key element in the development of dental caries, subsequently leading to the gradual formation of

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Yoo, Yeon-Jee, Min-Ji Kang, Hiran Perinpanayagam, Joo-Cheol Park, Seung-Ho Baek, and Kee-Yeon Kum. "Non-Thermal Atmospheric Pressure Plasma-Conditioned Root Dentin Promotes Attraction and Attachment of Primary Human Dental Pulp Stem Cells in Real-Time Ex Vivo." Applied Sciences 11, no. 15 (2021): 6836. http://dx.doi.org/10.3390/app11156836.

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This study investigated if non-thermal atmospheric pressure plasma (NTAPP) treatment of root dentin surfaces promotes human dental pulp stem cell (hDPSCs) adhesion. Freshly extracted human single-rooted teeth (n = 36) were decoronated and cut (first vertically, then horizontally) into root dentin slices (3 mm thick). Primary hDPSCs cultures were seeded onto slices randomly assigned to pretreatment groups (n = 9/group): NaOCl (1.5%), EDTA (17%) then NTAPP (Group I); NaOCl then NTAPP (Group II); NaOCl then EDTA (Group III); and NaOCl alone (Group IV). Cell viability and proliferation were measur

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Arrais, César Augusto Galvão, and Marcelo Giannini. "Morphology and thickness of the diffusion of resin through demineralized or unconditioned dentinal matrix." Pesquisa Odontológica Brasileira 16, no. 2 (2002): 115–20. http://dx.doi.org/10.1590/s1517-74912002000200004.

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The formation of a hybrid layer is the main bonding mechanism of current dentin-bonding systems. This study evaluated the morphology and thickness of the resin-infiltrated dentinal layer after the application of adhesive systems. The dentin-bonding agents were evaluated on flat dentinal preparations confected on the occlusal surfaces of human teeth. The test specimens were prepared and inspected under scanning electron microscopy at a magnification of X 2,000. The adhesive systems were responsible for different hybrid layer thicknesses (p < 0.05), and the mean values were: for Scotchbond MP

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Bannister, RD, RV Roudsari, and JD Satterthwaite. "Film Thickness of Dentin Desensitizing Agents on Full Crown Preparations: Influence of Product and Gravity." Operative Dentistry 39, no. 6 (2014): E241—E249. http://dx.doi.org/10.2341/13-215-l.

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SUMMARY Objective To determine the thickness of resin layer formed when dentin desensitizing agents are applied to teeth prepared for full crown restorations. Design In vitro measurements of resin layer thickness. Methods and Materials Forty caries-free human premolar teeth were prepared as for a full metal-ceramic crown restoration with a retention groove placed mesiobuccally. Stratified allocation created five groups of eight teeth, which were treated with various desensitizing agents. Four teeth within each group were treated upright, and four were treated while inverted, resulting in a tot

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Tay, F. R., and D. H. Pashley. "Biomimetic Remineralization of Resin-bonded Acid-etched dentin." Journal of Dental Research 88, no. 8 (2009): 719–24. http://dx.doi.org/10.1177/0022034509341826.

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Degradation of denuded collagen within adhesive resin-infiltrated dentin is a pertinent problem in dentin bonding. A biomimetic remineralization scheme that incorporates non-classic crystallization pathways of fluidic amorphous nanoprecursors and mesoscopic transformation has been successful in remineralizing resin-free, acid-etched dentin, with evidence of intrafibrillar and interfibrillar remineralization. This study tested the hypothesis that biomimetic remineralization provides a means for remineralizing incompletely infiltrated resin-dentin interfaces created by etch-and-rinse adhesives.

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Gaboutchian, A. V., V. A. Knyaz, M. M. Novikov, et al. "COMPARATIVE MORPHOLOGICAL ANALYSIS OF ENAMEL AND DENTIN SURFACES’ RECONSTRUCTIONS BY MEANS OF AUTOMATED DIGITAL ODONTOMETRY." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIV-2/W1-2021 (April 15, 2021): 67–72. http://dx.doi.org/10.5194/isprs-archives-xliv-2-w1-2021-67-2021.

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Abstract. Studies of teeth represent a significant part of palaeoanthropological research. Over the past two decades these studies have significantly developed with implementation of high resolution imaging based on x-ray scanning techniques. Highly informative reconstructions based on image processing have provided an opportunity to study morphological layers and structures of teeth which are usually hidden under the outer layer of dental enamel. Thus micro-computed tomography of the studied teeth has been performed in order to obtain reconstructions of enamel and dentin surfaces. The materia

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Trippe, Leslie H., Apoena Aguiar Ribeiro, M. Andrea Azcarate-Peril, John S. Preisser, Rujin Wang, and Andrea Ferreira Zandona. "Is Fluorescence Technology a Promising Tool for Detecting Infected Dentin in Deep Carious Lesions?" Caries Research 54, no. 3 (2020): 205–17. http://dx.doi.org/10.1159/000505643.

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The purpose of this study was to determine if the degree of fluorescence detected by fluorescence-aided caries excavation (FACE) correlates with dentin bacterial microbiome diversity, as assessed by 16S rRNA gene amplicon sequencing, and with traditional tactile dentin caries assessment. Unidentified human teeth were obtained from a dental facility. The included teeth had a carious lesion two-thirds into the dentin, verified by radiography, and were red-fluorescing (RF) using FACE technology (SIROInspect; Sirona, Bensheim, Germany). Two independent examiners performed visual/tactile assessment

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Batista, Luiz Henrique Carvalho, José Ginaldo da Silva Júnior, Milton Fernando Andrade Silva, and Josealdo Tonholo. "Atomic Force Microscopy of Removal of Dentin Smear Layers." Microscopy and Microanalysis 13, no. 4 (2007): 245–50. http://dx.doi.org/10.1017/s1431927607070419.

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The regular periodontal practice of scaling and root planing produces a smear layer on the root surface that is detrimental to the readhesion of tissues during subsequent regeneration therapy. Although it has been demonstrated that gels containing the chelating agent ethylenediaminetetraacetic acid (EDTA) can assist in the removal of this contaminating layer, no quantitative method is yet available by which to evaluate the efficiency of the treatment. In this article, the power of atomic force microscopy (AFM) as a technique for monitoring and mapping the surfaces of dentinal roots is demonstr

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Norimasa Tsuji, Sadaomi Sugimoto, Hitomi Nakama, and Hiroshi Maeda. "Analysis of microflora in dentinal tubule by denaturing gradient gel electrophoresis." World Journal of Advanced Research and Reviews 11, no. 2 (2021): 085–92. http://dx.doi.org/10.30574/wjarr.2021.11.2.0362.

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This study was performed to apply denaturing gradient gel electrophoresis to microbiological examination of endodontic infections. The method was used to assess the bacterial communities in dentinal tubules. Samples were collected using #15, #35, and #60 K-type files from five infected root canals during treatment. Deoxyribonucleic acid(DNA) was extracted from the samples, and 16S ribosomal DNA was amplified by PCR using universal primers. The polymerase chain reaction(PCR) products were separated in the denaturing gel and band patterns were compared between the deep (#60 file) and superficial

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Tang, Mengzhen, Min Ge, Xu Zhang, et al. "Gelatin-Modified Bioactive Glass for Treatment of Dentin Hypersensitivity." International Journal of Molecular Sciences 25, no. 22 (2024): 11867. http://dx.doi.org/10.3390/ijms252211867.

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When dentin is directly exposed to the oral cavity for various reasons, such as a lack of enamel on the tooth surface, external stimuli to the dentin often cause transient discomfort known as dentin hypersensitivity. In order to block the incoming stimulus signal, an ideal treatment is to induce the production of minerals to block the dentinal tubules. In this work, a dentin-desensitizing plugging material was prepared by modifying mesoporous bioactive glass with gelatin, the mineralization and desensitization effects of which were compared with Gluma in in vitro experiments. These experiments

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Yoshiyama, Masahiro, Junichi Doi, Yoshihiro Nishitani, et al. "Bonding ability of adhesive resins to caries-affected and caries-infected dentin." Journal of Applied Oral Science 12, no. 3 (2004): 171–76. http://dx.doi.org/10.1590/s1678-77572004000300002.

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Hybridized dentin permits dental treatments that were previously impossible with conventional techniques, opening new frontiers in modern adhesive dentistry. We have investigated the adhesive property of current bonding systems to caries-infected dentin by a microtensile bond strength test (µTBS) and transmission electron microscopy (TEM), and suggested that bonding resin could infiltrate into caries-infected dentin partially to embed carious bacteria within hybrid layers. We have named this concept of caries control as modified sealed restoration (MSR). On the other hand, Kuraray Medical Inc.

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Zecin-Deren, Anna, Jerzy Sokolowski, Agata Szczesio-Wlodarczyk, Ireneusz Piwonski, Monika Lukomska-Szymanska, and Barbara Lapinska. "Multi-Layer Application of Self-Etch and Universal Adhesives and the Effect on Dentin Bond Strength." Molecules 24, no. 2 (2019): 345. http://dx.doi.org/10.3390/molecules24020345.

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Contemporary self-etch and multi-mode adhesives were introduced to ensure a fast and reliable bonding procedure. Yet, in terms of bond strength and stability they failed to perform as well as two-bottle, etch-and-rinse adhesives, which remain the gold standard in terms of durability. The purpose of this study was to assess the shear bond strength (SBS) of dental adhesives to dentin with different application protocols. Two self-etch (Adper Easy One and Xeno V) and two multi-mode adhesives (Single Bond Universal and Prime&Bond One Select) were used in the study. The highest SBS was obtained

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van den Breemer, CRG, M. Özcan, MS Cune, AP Almeida Ayres, B. Van Meerbeek, and MMM Gresnigt. "Effect of Immediate Dentin Sealing and Surface Conditioning on the Microtensile Bond Strength of Resin-based Composite to Dentin." Operative Dentistry 44, no. 6 (2019): E289—E298. http://dx.doi.org/10.2341/18-052-l.

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SUMMARY This study evaluated the microtensile bond strength (μTBS) of resin-based composite (RBC) to dentin after different immediate dentin sealing (IDS) strategies and surface-conditioning (SC) methods and on two water storage times. Human molars (n=48) were randomly divided into eight experimental groups involving four different IDS strategies—IDS-1L with one layer of adhesive, IDS-2L with two layers of adhesive, IDS-F with one layer of adhesive and one layer of flowable RBC, and DDS (delayed dentin sealing) with no layer of adhesive (control)—and two different SC methods—SC-P with pumice r

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