【摘 要】
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Objectives: Recently,transparent thermoplastic removable appliances have gained tremendous attention in orthodontic treatment.It is suggested that patients should wear each set of appliance for 2 week
【机 构】
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State Key Laboratory of Oral Diseases;Department of Orthodontics,West China Hospital of Stomatology,
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Objectives: Recently,transparent thermoplastic removable appliances have gained tremendous attention in orthodontic treatment.It is suggested that patients should wear each set of appliance for 2 weeks,considering the designed movement.But weather there is a change in the mechanical properties of the material is not sure.So,in this study,we evaluated the elastic modulus(reflecting the mechanical properties)of the thermoplastic material during 3 weeks(days 1,4,7,10,14,21),in the conditions of different initial activation,to present the mechanical properties change.
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