208 476

Cited 8 times in

Modification of surface pretreatment of white spot lesions to improve the safety and efficacy of resin infiltration

Authors
 Hyun-Kyung Yim  ;  Ji-Hyun Min  ;  Ho-Keun Kwon  ;  Baek-Il Kim 
Citation
 KOREAN JOURNAL OF ORTHODONTICS, Vol.44(4) : 195-202, 2014 
Journal Title
KOREAN JOURNAL OF ORTHODONTICS(대한치과교정학회지)
ISSN
 2234-7518 
Issue Date
2014
Keywords
15% Hydrochloric acid ; 37% Phosphoric acid ; Resin infiltration ; Surface layer ; White spot lesions (WSLs)
Abstract
OBJECTIVE: A low-viscosity resin (infiltrant) was used to inhibit the progression of white spot lesions (WSLs) and resolve associated esthetic issues. An alternative pretreatment was explored to increase the pore volume of the surface layer of the WSLs. Also, the penetration effects of the infiltrant were evaluated for various pretreatments.
METHODS: Sixty two artificial lesions were fabricated on bovine teeth. As a positive control, 15% HCl gel was applied for 120 seconds. Further, 37% H3PO4 gel was applied for 30 seconds using three methods. The samples were divided as follows: H3PO4 only group, H3PO4 sponge group, and H3PO4 brush group. The acid was gently rubbed with the applicators (i.e., a sponge or brush) throughout the application time. To compare the effects of resin infiltration, twenty paired halves of specimens were treated with an infiltrant (ICON®).
RESULTS: Thicknesses of the removed surface layers and infiltrated areas were evaluated by confocal laser scanning microscope. The positive control and the 37% H3PO4 brush group failed to show significant differences in the removed thickness (p > 0.05); however, the mean percentage of the infiltrated area was higher in the 37% H3PO4 brush group (84.13 ± 7.58%) than the positive control (63.51 ± 7.62%, p < 0.001). Scanning electron microscope observations indicate higher pore volumes for the 37% H3PO4 brush group than for the positive control.
CONCLUSIONS: Application of 37% H3PO4 with a brush for 30 seconds increased the pore volume of WSL surface layers and the percentage of infiltrated areas in comparison to the use of 15% HCl for 120 seconds.
Files in This Item:
T201402509.pdf Download
DOI
10.4041/kjod.2014.44.4.195
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Preventive Dentistry and Public Oral Health (예방치과학교실) > 1. Journal Papers
Yonsei Authors
Kwon, Ho Keun(권호근)
Kim, Baek Il(김백일) ORCID logo https://orcid.org/0000-0001-8234-2327
Min, Ji Hyun(민지현)
Yim, Hyun Kyung(임현경)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/99378
사서에게 알리기
  feedback

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse

Links