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The Relationship between Digital Model Accuracy and Time-Dependent Deformation of Alginate Impressions
Digital model Alginate impression 3Shape
2010/3/5
Objectives: To investigate the effects of different storage periods of alginate impressions on digital model accuracy.
Materials and Methods: A total of 105 impressions were taken from a master mod...
The effect of long-term deflection on permanent deformation of Nickel-Titanium archwires
Orthodontic wires Nitinol Spring back Permanent deformation Stress-relaxation
2009/1/23
The clinician must now consider the alloy along with cross-sectional shape and size when selecting archwires. The purpose of this study is to quantify permanent deformation after long-term deflect...
Deformation of metal brackets：a comparative study
Bonding Bracket Deformation Stainless steel Tensile strength
2009/1/12
The purpose of this study was to determine the effect of material and design on the force and stress required to permanently deform metal brackets.Fourteen types of metal brackets were categorized acc...