Alencar EQDSE, Nobrega MDLM, Dametto FR, Santos PBDD, Pinheiro FHDSL. Comparison of two methods of visual magnification for removal of adhesive flash during bracket placement using two types of orthodontic bonding agents.
Dental Press J Orthod 2018;
21:43-50. [PMID:
28125139 PMCID:
PMC5278932 DOI:
10.1590/2177-6709.21.6.043-050.oar]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Accepted: 07/05/2016] [Indexed: 11/21/2022] Open
Abstract
Objective:
This study aimed to evaluate the effectiveness of two methods of visual
magnification (operating microscope and light head magnifying glass) for removal
of composite flash around orthodontic metal brackets.
Material and Methods:
Brackets were bonded in the center of the clinical crown of sixty well-preserved
human premolars. Half of the sample was bonded with conventional Transbond XT (3M
Unitek TM, USA), whereas the other half was bonded with Transbond TM Plus Color
Change (3M Unitek TM, USA). For each type of composite, the choice of method to
remove the flash was determined by randomly distributing the teeth into the
following subgroups: A (removal by naked eye, n = 10), B (removal with the aid of
light head magnifying glass, under 4x magnification, n = 10), and C (removal with
the aid of an operating microscope, under 40x magnification, n = 10). Brackets
were debonded and teeth taken to a scanning electron microscope (SS-x-550,
Shimadzu, Japan) for visualization of their buccal surface. Quantification of
composite flash was performed with Image Pro Plus software, and values were
compared by Kruskal-Wallis test and Dunn’s post-hoc test at 5% significance level.
Results:
Removal of pigmented orthodontic adhesive with the aid of light head magnifying
glass proved, in general, to be advantageous in comparison to all other methods.
Conclusion:
There was no advantage in using Transbond TM Plus Color Change alone. Further
studies are necessary to draw a more definitive conclusion in regards to the
benefits of using an operating microscope.
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