Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Er,Cr:YSGG laser associated with acidulated phosphate fluoride gel (1.23% F) for prevention and control of dentin erosion progression

Full text
Author(s):
Bezerra, S. J. C. [1] ; Trevisan, L. R. [1] ; Viana, I. E. L. [1] ; Lopes, R. M. [1] ; Pereira, D. L. [2] ; Aranha, A. C. C. [1, 3] ; Scaramucci, Tais [1]
Total Authors: 7
Affiliation:
[1] Univ Sao Paulo, Sch Dent, Dept Restorat Dent, Ave Prof Lineu Prestes 2227, BR-05508000 Sao Paulo, SP - Brazil
[2] IPEN CNEN SP, Inst Energet & Nucl Res, Ave Prof Lineu Prestes 2242, BR-05508000 Sao Paulo, SP - Brazil
[3] Univ Sao Paulo, Sch Dent, Dept Restorat Dent, Special Lab Lasers Dent LELO, Ave Prof Lineu Prestes 2227, BR-05508000 Sao Paulo, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Lasers in Medical Science; v. 34, n. 3, p. 449-455, APR 2019.
Web of Science Citations: 1
Abstract

To evaluate the effect of Er,Cr:YSGG laser, associated with fluoride application, on the prevention/control of dentin erosion. Dentin slabs were embedded in acrylic resin, flattened, and polished. Half of the specimens were previously eroded (10min immersion in 1% citric acid solution) and half were kept sound. The specimens (n=10 each substrate) were randomly allocated into the experimental groups, according to the following treatments: control (no treatment); APF gel (1.23% F, 1min); Er,Cr:YSGG laser irradiation (P1: 0.25W, 20Hz, 2.8J/cm(2), tip S75, beam diameter of 750m, 1mm away from the surface); Er,Cr:YSGG laser irradiation (P2: 0.50W, 20Hz, 5.7J/cm(2), tip S75, beam diameter of 750m, 1mm away from the surface); APF gel+Er,Cr:YSGG laser P1 and; APF gel+Er,Cr:YSGG laser P2. Afterwards, the specimens underwent an erosion-remineralization cycling, consisting of a 5-min immersion into 0.3% citric acid, followed by 60-min exposure to artificial saliva. This procedure was repeated 4x/day, for 5days. Surface loss (SL, in m) was determined by optical profilometry. Specimens from each group were analyzed by environmental scanning electron microscopy (n=3). Data were statistically analyzed (=0.05). For the eroded specimens, APF gel presented the lowest SL, being different from the control. For the sound specimens, none of the groups differed from the control, except for Er,Cr:YSGGlaser P2, which presented the highest SL. When substrates were compared, only the eroded specimens of the control and APF + Er,Cr:YSGGlaser P1 Groups showed higher SL. Selective structure removal was observed for the laser-treated groups. None of the Er,Cr:YSGG laser parameters were effective in the prevention/control dentin erosion. Thelaser was also unable to enhance the protection of fluoride against dentin erosion. (AU)

FAPESP's process: 16/25883-0 - Effect of Er,Cr:YSGG laser associated to fluoride application in the control of dentin erosion
Grantee:Letícia Rigacci Trevisan
Support type: Scholarships in Brazil - Scientific Initiation