Related Experiment Video
Updated: Jun 19, 2026
Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials
Published on: January 10, 2025
Managing dentine erosion with silver diamine fluoride: An in situ study
Dhananthat Chawhuaveang1, Walter Yu Hang Lam2, Alice Kit Ying Chan2
1Department of Pediatric Dentistry, Faculty of Dentistry, Thammasat University, Pathum Thani, Thailand; Department of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, 3B12, Prince Philip Dental Hospital, 34 Hospital Road, Hong Kong SAR, 999077, China.
Objectives:
To evaluate anti-erosive effect and associated color change (ΔE00) of 38% silver diamine fluoride (SDF) on human dentine.
Methods:
A crossover in situ study involving 15 volunteers was conducted. Participants wore an intra-oral appliance carrying four dentine blocks for three 14-day treatment phases, separated by a 7-day washout period. Three treatments included weekly application of 38% SDF (255,000 ppmAg and 44,800 ppmF, Group SDF), daily application of stannous chloride/amine fluoride/sodium fluoride (800 ppmSn and 500 ppmF, Group SNF), and daily application of deionized water (Group DW). Appliances with dentine blocks were exposed to citric acid (pH 3.2), five daily extraoral erosive challenges. Dentine blocks were assessed for percentage surface microhardness loss (%SMHL), dentine loss, salivary pellicle morphology, crystal characteristics, dentine surface morphology, elemental composition, and ΔE00 by a microhardness tester, optical profilometry, atomic force microscopy (AFM), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and spectrophotometry, respectively.
Results:
%SMHL of the experimental groups were SDF:23.3 ± 2.4, SNF:30.2 ± 2.0 and DW:42.4 ± 2.2 (SDF
Conclusion:
Weekly application of 38% SDF demonstrated significantly better anti-erosive protection but caused black staining on dentine surfaces.
Clinical Significance:
SDF with weekly application has been demonstrated to be effective in preventing dentine erosion, although dentine staining remains a clinical consideration.
