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Remineralization of Natural Human Carious Dentin Lesions with an Experimental Whisker‐Reinforced Atraumatic Restorative Treatment Composite
Author(s) -
Zhang Chao,
Campbell Stephen D.,
Dickens Sabine H.,
Yang Bin
Publication year - 2019
Publication title -
journal of prosthodontics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.902
H-Index - 60
eISSN - 1532-849X
pISSN - 1059-941X
DOI - 10.1111/jopr.12754
Subject(s) - remineralisation , demineralization , dentin , dentistry , tooth remineralization , glass ionomer cement , materials science , chemistry , orthodontics , enamel paint , medicine
Purpose To evaluate the remineralization of natural human dentin caries with an experimental whisker‐reinforced Atraumatic Restorative Treatment (ART) composite. Materials and Methods Teeth with moderate active dentin caries were prepared with caries‐disclosing dye and hand instruments, restored with ART or resin‐modified glass ionomer cement (RM‐GIC), and then wet sliced into 120‐µm sections with 15 sections in each group. After taking transverse microradiographs and implementing digital image analysis to determine the “mineral‐loss‐before,” each section was incubated in artificial saliva solution (pH = 7.0) for 4 weeks and 8 weeks with 1 hour each workday in demineralization solution (pH = 4.3). Transverse microradiographs of each section were retaken, and the “mineral‐loss‐after” was determined. The remineralization was calculated from [1‐(“mineral‐loss‐after”/“mineral‐loss‐before”)] × 100%. Results were statistically analyzed with a repeated‐measures ANOVA with one within‐subject factor (time: 4 and 8 weeks) and one between‐subject factor (material: ART and RM‐GIC) (α = 0.05). Results The statistical analysis indicated that ART composite resulted in significantly higher remineralization than the RM‐GIC ( p ≤ 0.05). For the remineralization of each material, there was a statistical difference between 4 weeks and 8 weeks ( p ≤ 0.05). Conclusions This experimental ART composite remineralized natural human dentin caries better than the RM‐GIC.