In-vitro evaluation of the effects of insertion and sterilization procedures on the mechanical and surface characteristics of mini screws

PurposeThe aim of the present study was to investigate the effects of insertion andsterilization on primary stability and to examine the mechanical and surfacecharacteristics of mini screws.Materials and methods140 miniscrews (70 Dual-Top; 70 Ortho-Easy) were divided into 3 groups. Group1: control g...

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Bibliographic Details
Published in:European oral research 2019-01, Vol.53 (1), p.25-31
Main Authors: Nazan Küçükkeleş, Mustafa Ateş, Yasemin Bahar Acar, Civan Aved Hergel
Format: Article
Language:English
Subjects:
canning electron microscope
miniscrew
orthodontic mini-implant
primary stability
sterilization
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Summary:PurposeThe aim of the present study was to investigate the effects of insertion andsterilization on primary stability and to examine the mechanical and surfacecharacteristics of mini screws.Materials and methods140 miniscrews (70 Dual-Top; 70 Ortho-Easy) were divided into 3 groups. Group1: control group, 10 miniscrews of each brand, evaluated without any primaryprocedure. Group 2: 30 miniscrews of each brand, each inserted into the sawboneonce, then sterilized and tested. Group 3: 30 miniscrews of each brand, eachinserted into the sawbone twice, sterilized after each insertion and then tested. Theminiscrews were evaluated for changes in primary stability, mechanical and surfacecharacteristics with scanning electron microscopy (SEM) analysis, torsion tests,maximum insertion-removal torques and vertical-horizontal pull out strength tests.ResultsThe maximum insertion torque values of the unused miniscrews (Group 1) werefound to be significantly higher than those of the reused (Groups 2, 3) mini screws(p
ISSN:2630-6158
2651-2823