Strontium effects on root dentin tubule occlusion and nanomechanical properties

Dental Materials : Official Publication of the Academy of Dental Materials
K SaekiSally J Marshall

Abstract

Dentin hypersensitivity often is treated by promotion of dentin tubule occlusion. In this in vitro study we evaluated nanomechanical properties and degree of tubule occlusion conferred to sound and demineralized human root dentin following treatment with a 10% (w/w) strontium acetate solution and its relation to the treatment duration and delivery method. 24 human cervical root dentin disks (8 groups of 3) were polished through 0.25μm. 12 disks were subjected to an acid challenge (1% citric acid, pH3.8) for 2min. The specimens were incubated in artificial saliva, treated by soaking or brushing with deionized (DI) water or a solution of 10% strontium acetate for 2min twice a day for 28 days. The occlusion percent and nanomechanical properties were determined at the baseline, 5, 14 and 28 days. Cross-sectioned specimens were prepared to evaluate the depth affected by strontium acetate / dentin interaction by SEM. Statistical analysis was performed using linear mixed effects models. A 10% strontium acetate treatment over 5-28 days significantly increased tubule occlusion for normal root dentin and to a lesser extent for demineralized dentin and increased the AFM based nanomechanical properties of demineralized dentin. Brushing was...Continue Reading

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Citations

Mar 1, 2018·International Endodontic Journal·M ToledanoR Osorio
Feb 7, 2018·Clinical Oral Investigations·Raquel OsorioManuel Toledano
Jun 25, 2019·Journal of Applied Biomaterials & Functional Materials·Stanley Chibuzor OnwubuPhumlane Selby Mdluli
Jan 14, 2018·Clinical Oral Investigations·Vittorio MoraschiniGustavo Oliveira Dos Santos
Mar 21, 2019·Brazilian Oral Research·Stanley Chibuzor OnwubuTshepo Tlapana
Jul 5, 2018·Clinical Oral Investigations·Manuel ToledanoRaquel Osorio
Nov 7, 2019·International Journal of Dentistry·Stanley Chibuzor OnwubuObiora Cornelius Collins
Jan 15, 2021·International Journal of Nanomedicine·Bolin LiHaiyan Lu
Sep 10, 2021·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Luisa Alegria AcevedoFabio André Santos

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