Evaluation of the effect of three innovative recyling methods on the shear bond strength of stainless steel brackets-an in vitro study
NAGIOS: RODERIC FUNCIONANDO

Evaluation of the effect of three innovative recyling methods on the shear bond strength of stainless steel brackets-an in vitro study

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Evaluation of the effect of three innovative recyling methods on the shear bond strength of stainless steel brackets-an in vitro study

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dc.contributor.author Gupta, Neeraj es
dc.contributor.author Kumar, Dilip es
dc.contributor.author Palla, Aparna es
dc.date.accessioned 2017-07-19T06:49:19Z
dc.date.available 2017-07-19T06:49:19Z
dc.date.issued 2017 es
dc.identifier.uri http://hdl.handle.net/10550/59651
dc.description.abstract Orthodontists are commonly faced with the decision of what to do with debonded or inaccurately positioned brackets. An economical option to this dilemma is to recycle the brackets. Many recycling methods have been proposed, but the optimal bond strength of these recycled brackets needs further evaluation. Objectives: To evaluate and compare the effect of three recycling methods: (i) Sandblasting (ii) Sandblasting / direct flaming (iii) Sandblasting /direct flaming /acid bath solution on shear bond strength (SBS) of stainless steel brackets. Eighty human premolars were bonded with premolar stainless steel brackets as per manufacturer?s instructions. The teeth were divided into 4 groups (n=20): Recycling and initial debonding was not done in Control group (Group I). After initial bonding, the brackets in the rest of the three experimental groups were debonded and recycled by following methods: (i) Sandblasting (Group II) (ii) Sandblasting /direct flaming (Group III) (iii) Sandblasting /direct flaming /acid bath solution (Group IV). Further the recycled brackets were bonded. The specimens were then subjected to testing in a Universal machine. The evaluation of the variation of the shear bond strength (SBS) among test groups was done using one-way ANOVA test and inter-experimental group comparison was done by Newman-Keuls multiple post hoc procedure. Group I (8.6510±1.3943MPa) showed the highest bond strength followed by Group II (5.0185±0.9758MPa), Group IV (2.30±0.65MPa) and Group III (2.0455± 0.6196MPa). Statistically significant variations existed in the shear bond strength (SBS) in all groups analyzed except between Group III and Group IV. The following conclusions were drawn from the study: 1. Shear bond strength of new brackets is significantly higher than the recycled brackets. 2. Brackets sandblasted with 90µm aluminium oxide particle air-abrasion showed significantly higher shear bond strength compared to direct flaming/sandblasting and direct flaming/sandblasting/acid bath solution. 3. Sandblasting with 90µm aluminium oxide particle air-abrasion is the simplest, most efficient and hence, the preferred method of recycling debonded brackets. es
dc.source Gupta, Neeraj ; Kumar, Dilip ; Palla, Aparna. Evaluation of the effect of three innovative recyling methods on the shear bond strength of stainless steel brackets-an in vitro study. En: Journal of Clinical and Experimental Dentistry, 9 4 2017: 550-555 es
dc.title Evaluation of the effect of three innovative recyling methods on the shear bond strength of stainless steel brackets-an in vitro study es
dc.type info:eu-repo/semantics/article en
dc.type info:eu-repo/semantics/publishedVersion en
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/jced.53586 es

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