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| Main Authors: | , , , , , , |
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| Format: | Artículo Open Access |
| Published: |
Wiley
2025
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| Online Access: | https://onlinelibrary.wiley.com/doi/10.1111/jerd.13439 |
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Table of Contents:
- Role of Amine and/or Tin‐Containing Dentifrices on Tooth Discoloration and Surface Properties Mariana Beraldo Maia Tammy Tawil Isabela Souza Vardasca Leonardo Custódio de Lima Savio José Cardoso Bezerra Ana Cecília Correa Aranha Taís Scaramucci Journal of Esthetic and Restorative Dentistry ABSTRACT Objective This study evaluated the impact of dentifrices containing amine fluoride (AmF) and/or tin on tooth discoloration and surface roughness under cycles of staining and abrasion. Materials and Methods Specimens of enamel ( n = 10) and dentin ( n = 19) were allocated into six groups: (1) Negative control (Distilled water), (2) NaF (regular fluoridated dentifrice without amine and tin), (3) AmF, (4) AmF/NaF/SnCl 2 , (5) SnF 2 /SnCl 2 , and (6) SnF 2 . Daily staining‐toothbrushing cycling was performed: staining solution (30 min), toothbrushing (45 strokes), and human saliva (1 h), 2×/day, for 21 days. Tooth color change (Δ E , Δ L , Δ a , and Δ b ) was determined using a spectrophotometer (CIEDE2000), while surface roughness (ΔRa) was measured with an optical profilometer, and the data were statistically analyzed ( α = 0.05). Results For enamel, no significant differences in Δ E were observed among groups; however, for dentin, AmF exhibited the highest Δ E value, differing from all groups except Negative control ( p > 0.05). Both substrates showed a decrease in luminosity (−Δ L ), with significant differences in dentin for the AmF group ( p < 0.05). For dentin, all groups showed an increase in tooth yellowness (+Δ b ); while for enamel, only the tin‐containing groups showed this effect. All groups showed an increase in surface roughness after cycling. Enamel Ra showed significant differences post‐treatment, with AmF differing from NaF/AmF/SnCl 2 ( p = 0.012) and control ( p = 0.042). Correlations between ΔRa and Δ E were weak in both substrates ( ρ = 0.12 for enamel; ρ = 0.22 for dentin). Conclusions Brushing with AmF/NaF/SnCl 2 , SnF 2 /SnCl 2 , and SnF 2 ‐containing toothpastes promoted a yellowing of enamel. Brushing with AmF resulted in the greatest darkening of dentin compared with other fluoride salts. Clinical Significance Some components in dentifrices can induce tooth discoloration, which seems to impact dental aesthetics; therefore, clinicians should advise patients on potential color alterations when choosing specific dentifrice products. 10.1111/jerd.13439 http://onlinelibrary.wiley.com/termsAndConditions#vor