Kinetic and Thermodynamic Aspects of Enamel Demineralization

1985 ◽  
Vol 19 (1) ◽  
pp. 22-35 ◽  
Author(s):  
H.C. Margolis ◽  
E.C. Moreno
Keyword(s):  
Enamel Demineralization

Enamel demineralization model in primary teeth: Micro‐CT and SEM assessments of artificial incipient lesion

2021 ◽  
Author(s):  
Arlete González‐Sotelo ◽  
Rosalía Contreras‐Bulnes ◽  
Laura E. Rodríguez‐Vilchis ◽  
Maria de los Angeles Moyaho‐Bernal ◽  
Efraín Rubio‐Rosas ◽  
...  
Keyword(s):  
Primary Teeth ◽  
Micro Ct ◽  
Enamel Demineralization

scholarly journals Nanomaterials Application in Orthodontics

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 337
Author(s):  
Wojciech Zakrzewski ◽  
Maciej Dobrzynski ◽  
Wojciech Dobrzynski ◽  
Anna Zawadzka-Knefel ◽  
Mateusz Janecki ◽  
...  
Keyword(s):  
Friction Force ◽  
Material Properties ◽  
Orthodontic Treatment ◽  
Mechanical Characteristics ◽  
Current Knowledge ◽  
Scientific Work ◽  
Orthodontic Appliances ◽  
Orthodontic Movement ◽  
Enamel Demineralization

Nanotechnology has gained importance in recent years due to its ability to enhance material properties, including antimicrobial characteristics. Nanotechnology is applicable in various aspects of orthodontics. This scientific work focuses on the concept of nanotechnology and its applications in the field of orthodontics, including, among others, enhancement of antimicrobial characteristics of orthodontic resins, leading to reduction of enamel demineralization or control of friction force during orthodontic movement. The latter one enables effective orthodontic treatment while using less force. Emphasis is put on antimicrobial and mechanical characteristics of nanomaterials during orthodontic treatment. The manuscript sums up the current knowledge about nanomaterials’ influence on orthodontic appliances.

Effect of fluoridated milk on enamel demineralization adjacent to fixed orthodontic appliances

2012 ◽  
Vol 71 (3-4) ◽  
pp. 464-468 ◽  
Author(s):  
Kerstin Sköld-Larsson ◽  
Ola Sollenius ◽  
Lena Karlsson ◽  
Lars G. Petersson ◽  
Svante Twetman
Keyword(s):  
Orthodontic Appliances ◽  
Enamel Demineralization ◽  
Fixed Orthodontic Appliances

scholarly journals Ph-activated nano-amorphous calcium phosphate-based cement to reduce dental enamel demineralization

2017 ◽  
Vol 45 (8) ◽  
pp. 1778-1785 ◽  
Author(s):  
Mary A. S. Melo ◽  
Michael D. Weir ◽  
Vanara F. Passos ◽  
Michael Powers ◽  
Hockin H. K. Xu
Keyword(s):  
Calcium Phosphate ◽  
Amorphous Calcium Phosphate ◽  
Dental Enamel ◽  
Enamel Demineralization

The Potential of a Bioactive, Pre-reacted, Glass-Ionomer Filler Resin Composite to Inhibit the Demineralization of Enamel in Vitro

2021 ◽  
Vol 46 (1) ◽  
pp. E11-E20
Author(s):  
IF Leão ◽  
N Araújo ◽  
CK Scotti ◽  
RFL Mondelli ◽  
MM de Amoêdo Campos Velo ◽  
...  
Keyword(s):  
Resin Composite ◽  
Surface Hardness ◽  
Composition Analysis ◽  
Glass Ionomer ◽  
Material Interface ◽  
Enamel Demineralization ◽  
Restorative Materials ◽  
Ph Cycling ◽  
Group B

Clinical Relevance A prereacted, glass-ionomer filler fluoride-containing resin composite had lower remineralization potential than glass-ionomer cements but was able to inhibit enamel demineralization; thus, it may be an option for restoring dental surfaces for patients at high risk of caries. SUMMARY Evidence is lacking on the use of surface prereacted glass-ionomer filler resin composites to inhibit demineralization and that simulate real clinical conditions. The present laboratory study evaluated the potential of such composites to prevent demineralization and quantified fluoride (F) and other ions released from restorative materials after a dynamic pH-cycling regimen applied to the tooth material interface in vitro. The pH-cycling regimen was assessed by measuring surface hardness (SH) along with energy dispersive X-ray spectroscopy (EDX). Methods and Materials: Ninety blocks of bovine enamel were subjected to composition analysis with EDX, and were further categorized based on SH. The blocks were randomly divided into 6 treatment groups (n=15 each): F IX (Fuji IX Extra; GC Corporation); IZ (Ion Z, FGM); F II (Fuji II LC, GC Corporation); B II (Beautifil II, Shofu); F250 (Filtek Z250 XT, 3M ESPE); and NT (control, no treatment). The blocks were subjected to a dynamic pH-cycling regimen at 37°C for 7 days concurrently with daily alternations of immersion in demineralizing/remineralizing solutions. EDX was conducted and a final SH was determined at standard distances from the restorative materials (150, 300, and 400 μm). Results: The EDX findings revealed a significant increase in F concentration and a decrease in Ca2+ in the enamel blocks of group B II after the pH-cycling regimen (p<0.05). SH values for groups F IX, IZ, and F II were greater than those for groups B II, F250, and NT at all distances from the materials. Conclusions: The results suggest that each of 3 restorative materials, F IX, IZ, and F II, partially inhibited enamel demineralization under a dynamic pH-cycling regimen.

scholarly journals Antimicrobial and Anti-Caries Effect of New Glass Ionomer Cement on Enamel Under Microcosm Biofilm Model

2018 ◽  
Vol 29 (6) ◽  
pp. 599-605
Author(s):  
Beatriz Martines de Souza ◽  
Daiana Moreli Soares dos Santos ◽  
Ana Carolina Magalhães
Keyword(s):  
Laser Scanning ◽  
Glass Ionomer Cement ◽  
Human Saliva ◽  
Confocal Laser Scanning Microscope ◽  
The Other ◽  
Confocal Laser ◽  
Glass Ionomer ◽  
Enamel Demineralization ◽  
And Control ◽  
Ionomer Cement

Abstract The occurrence of caries lesions adjacent to restorations is a serious problem in Dentistry. Therefore, new antimicrobial restorative materials could help to prevent recurrent carious lesions. This study evaluated the effect of a new glass ionomer cement (Ion Z) on the viability of a microcosm biofilm and on the development of enamel demineralization. Enamel samples were filled with the following materials (n=9): A) Ion-Z (FGM Ltda); B) Maxxion R (FGM Ltda); C) Ketac Fil Plus (3M ESPE) and D) no restoration (control). The samples were then exposed to human saliva mixed with McBain saliva (1:50) containing 0.2% sucrose for 14 days. The live and dead bacteria were quantified by fluorescence using a confocal laser-scanning microscope. The enamel demineralization was analyzed using transverse microradiography (TMR). The data were submitted to ANOVA/Tukey or Kruskal-Wallis/Dunn test (p<0.05). Ion Z induced a higher percentage of dead bacteria (60.96±12.0%) compared to the other groups (Maxxion R: 39.8±6.7%, Ketac Fil Plus: 43.7±9.71% and control 46.3±9.5%). All materials significantly reduced the average mineral loss compared to control (Ion-Z 25.0±4.2%vol, Maxxion R 23.4±8.0%vol, Ketac Fil Plus 30.7±7.7 and control 41.2±6.6%vol). Ion-Z was the only material able to significantly improve the mineral content at the surface layer (Zmax: 63.5±18.2%vol) compared to control (38.9±11.3%vol). Ion-Z shows antimicrobial potential, but its anti-caries effect was similar to the other materials, under this model.

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