Evaluation of the cytotoxicity of polyurethane and non-latex orthodontic chain elastics
نویسندگان
چکیده
منابع مشابه
Evaluation of the cytotoxicity of latex and non-latex orthodontic separating elastics.
OBJECTIVE To test the hypothesis that a difference in cytotoxicity exists between latex and non-latex orthodontic separating elastics. MATERIAL AND METHODS Five intra-oral separating elastics from different manufactures (four latex and one non-latex) were divided into five groups of 15 elastics each: Group MA (non-latex elastics, Masel), Group MO (natural latex, Morelli), Group DE (natural la...
متن کاملIn vitro study of force decay of latex and non-latex orthodontic elastics.
The aim of this study was to evaluate the force decay of two brands of orthodontic elastics, both offering latex and non-latex products. Samples were subjected to continuous stretching, measuring force at 5 seconds, 8 hours, and 24 hours in both dry and wet conditions. Five hundred samples were used, GAC® and Lancer® 0.25 inch and 4 oz, divided into testing sample sizes of n = 25 per group. For...
متن کاملIn Vitro Cytotoxicity of Latex Orthodontic Elastics Citotoxicidad de los Elásticos Ortodónticos de Látex
Natural latex does not fall into the category of materials known to be entirely inoffensive. The objective of the present in vitro study is to test the hypothesis that there is no difference in the cytotoxicity between natural latex elastics of different colours. The present article compared different latex intra-oral elastics (5/16 = 7.9 mm). The sample was divided into four groups according t...
متن کاملthe evaluation of language related engagment and task related engagment with the purpose of investigating the effect of metatalk and task typology
abstract while task-based instruction is considered as the most effective way to learn a language in the related literature, it is oversimplified on various grounds. different variables may affect how students are engaged with not only the language but also with the task itself. the present study was conducted to investigate language and task related engagement on the basis of the task typolog...
15 صفحه اولAn In-vitro Comparison of Force Loss of Orthodontic Non-Latex Elastics
OBJECTIVE The amount and consistency of the applied forces to the tooth are important factors in tooth movements; therefore, the aim of this study was to compare the initial force and the force loss of three brands of elastics in 24 hours. MATERIALS AND METHODS In this in-vitro study sixty non-latex elastics (3/16 medium) from three companies (Forestadent, Dentaurum and Ortho Technology) were...
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ژورنال
عنوان ژورنال: Matéria (Rio de Janeiro)
سال: 2012
ISSN: 1517-7076
DOI: 10.1590/s1517-70762012000100007