Reconditioning of ceramic orthodontic brackets with an Er,Cr:YSGG laser.
It is now known that erbium lasers are effective in composite removal, but there is minimal information about their efficacy on recycling of ceramic brackets. This study, therefore, aimed to determine the percentage of remaining adhesive on the base and the shear bond strength of debonded ceramic br...
| Publicado en: | Lasers in Medical Science Vol. 28; no. 1; pp. 223 - 229 |
|---|---|
| Autores principales: | , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Jan2013
|
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104414641&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104414641 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 02688921 O4P jtl: Lasers in Medical Science issn: 02688921 maglogo: N pubinfo: dt: Jan2013 vid: 28 iid: 1 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 104414641 NLM22585379 2011895562 10.1007/s10103-012-1093-4 NLM22585379 104414641 ppf: 223 ppct: 6 formats: tig: atl: Reconditioning of ceramic orthodontic brackets with an Er,Cr:YSGG laser. aug: au: Ahrari F Fekrazad R Kalhori KA Ramtin M Ahrari, Farzaneh Fekrazad, Reza Kalhori, Katayoun A M Ramtin, Mahshid affil: Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Vakilabal Blvd., Mashhad, Iran sug: subj: Dental Debonding Methods Lasers Orthodontic Brackets Analysis of Variance Biomedical and Dental Materials Dental Bonding Human Materials Testing Nonparametric Statistics Surface Properties ab: It is now known that erbium lasers are effective in composite removal, but there is minimal information about their efficacy on recycling of ceramic brackets. This study, therefore, aimed to determine the percentage of remaining adhesive on the base and the shear bond strength of debonded ceramic brackets after being reconditioned by an Er,Cr:YSGG (erbium, chromium: yttrium-scandium-gallium-garnet) laser. Thirty premolars were divided into three groups, then bonded with mechanical retention ceramic brackets according to the bracket base conditions: (1) new brackets; (2) debonded brackets cleaned of adhesive with the Er,Cr:YSGG laser at 3.5 W; and (3) debonded brackets cleaned of adhesive with the Er,Cr:YSGG laser at 4 W. Before bonding, the percentage of remaining adhesive on the bases of reconditioned brackets was calculated by using stereomicroscopic images through an image processing software. The brackets were then tested in shear mode in a universal testing machine and the adhesive remnant index scores were determined. The percentage of remaining adhesive on the bases of brackets that were cleaned by the Er,Cr:YSGG laser at 4 W (3.1 %) was significantly lower than that of the 3.5-W laser group (5.9 %) (p = 0.03). No significant difference was found in bond strengths between the new and the reconditioned brackets (p = 0.19). The frequency of bond failure at the enamel-adhesive interface was lower in the laser-reconditioned brackets when compared to the new brackets. The application of Er,Cr:YSGG laser was efficient in removing adhesive from bases of debonded ceramic brackets because it produced comparable bond strengths to new brackets while reducing the risk of enamel damage during debonding. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|