Thayla Hellen Nunes Gouveia1, Danielle Ferreira Sobral de Souza1, Flávio Henrique Baggio Aguiar1, Gláucia Maria Bovi Ambrosano2, Débora Alves Nunes Leite Lima3. 1. Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas - FOP/UNICAMP, Av. Limeira, 901 P.O. Box 52, Piracicaba, SP, 13414-903, Brazil. 2. Department of Social Dentistry/Statistics, Piracicaba Dental School, State University of Campinas - FOP/UNICAMP, Piracicaba, SP, Brazil. 3. Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas - FOP/UNICAMP, Av. Limeira, 901 P.O. Box 52, Piracicaba, SP, 13414-903, Brazil. dalima@unicamp.br.
Abstract
OBJECTIVE: To analyze the effect of bioadhesive polymer, Aristoflex® AVC, on enamel physical and chemical properties. MATERIALS AND METHODS: Bovine enamel blocks were divided into CP 10% with carbopol-Whiteness Perfect® (WP-FGM), CP 10% with Aristoflex (A + CP 10%), CP 10% with carbopol (C + CP 10%), Aristoflex (A), carbopol (C), carbamide peroxide 10% (CP 10%) and control (no treatment). The treatment was performed for 4 h during 14 days. The colour (ΔE, ΔL*, Δa* and Δb*), profilometry (Ra) and surface microhardness (KHN) were performed before and after the bleaching treatment. The concentrations of Ca and P were performed on the 1st, 3rd, 7th and 14th days by inductively coupled plasma optical emission spectrometry for the groups WP, A + CP 10%, C + CP 10%, A, C and CP 10% (control without thickener) and the morphology by scanning electron microscopy. RESULTS: All groups with CP 10%, regardless of polymer, differing statistically to ΔE, ΔL*, Δa* and Δb* compared to control group. The group A + CP 10% maintained low values of roughness and microhardness after bleaching. Higher concentration of Ca and P was found in the 1st day of treatment for the WP group compared to the groups A + CP 10% and C + CP 10%. CONCLUSION: The 10% CP associated with the bioadhesive polymer Aristoflex® AVC was effective on the bleaching treatment without changing the physical properties of the dental enamel. Also, this experimental gel caused less mineral loss than the group CP 10% with carbopol (WP-FGM). CLINICAL RELEVANCE: Because the change of Carbopol by Aristoflex, a bioadhesive polymer, does not interfere with the effectiveness of bleaching treatment, it is a promising agent associated to carbamide to maintain the physical properties of enamel after bleaching.
OBJECTIVE: To analyze the effect of bioadhesive polymer, Aristoflex® AVC, on enamel physical and chemical properties. MATERIALS AND METHODS:Bovine enamel blocks were divided into CP 10% with carbopol-Whiteness Perfect® (WP-FGM), CP 10% with Aristoflex (A + CP 10%), CP 10% with carbopol (C + CP 10%), Aristoflex (A), carbopol (C), carbamide peroxide 10% (CP 10%) and control (no treatment). The treatment was performed for 4 h during 14 days. The colour (ΔE, ΔL*, Δa* and Δb*), profilometry (Ra) and surface microhardness (KHN) were performed before and after the bleaching treatment. The concentrations of Ca and P were performed on the 1st, 3rd, 7th and 14th days by inductively coupled plasma optical emission spectrometry for the groups WP, A + CP 10%, C + CP 10%, A, C and CP 10% (control without thickener) and the morphology by scanning electron microscopy. RESULTS: All groups with CP 10%, regardless of polymer, differing statistically to ΔE, ΔL*, Δa* and Δb* compared to control group. The group A + CP 10% maintained low values of roughness and microhardness after bleaching. Higher concentration of Ca and P was found in the 1st day of treatment for the WP group compared to the groups A + CP 10% and C + CP 10%. CONCLUSION: The 10% CP associated with the bioadhesive polymer Aristoflex® AVC was effective on the bleaching treatment without changing the physical properties of the dental enamel. Also, this experimental gel caused less mineral loss than the group CP 10% with carbopol (WP-FGM). CLINICAL RELEVANCE: Because the change of Carbopol by Aristoflex, a bioadhesive polymer, does not interfere with the effectiveness of bleaching treatment, it is a promising agent associated to carbamide to maintain the physical properties of enamel after bleaching.
Entities:
Keywords:
Chemical analysis; Dental bleaching; Profilometry; Spectroscopy
Authors: Igor Buzalewicz; Agnieszka Ulatowska-Jarża; Aleksandra Kaczorowska; Marlena Gąsior-Głogowska; Halina Podbielska; Magdalena Karwańska; Alina Wieliczko; Anna K Matczuk; Katarzyna Kowal; Marta Kopaczyńska Journal: Int J Mol Sci Date: 2021-05-11 Impact factor: 5.923