نتایج جستجو برای: elastics medium

تعداد نتایج: 237103  

Journal: :Texas dental journal 2011
Sebastian Z Paige Jeryl D English Gary N Frey Harry I Bussa Kathleen R McGrory Randy K Ellis Joe C Ontiveros

UNLABELLED The purpose of this study was to compare the force loss of 1/4 inch (6.35mm) 3.5oz (99g) medium latex elastics from Ormco Corp. to non-latex elastics from ClassOne Orthodontics and Phoenix after being cycled between different temperatures. Elastics were stretched to 1.57 inches (40mm) on jigs and cycled in water baths for 4 minutes at 5 degrees C and 37 degrees C, 21 degrees C and 37...

Journal: :Journal of international oral health : JIOH 2014
Supradeep Kumar Kamisetty Chakrapani Nimagadda Madhoom Ponnachi Begam Raghuveer Nalamotu Trilok Srivastav Shwetha Gs

BACKGROUND Orthodontic tooth movement results from application of forces to teeth. Elastics in orthodontics have been used both intra-orally and extra- orally to a great effect. Their use, combined with good patient co-operation provides the clinician with the ability to correct both anteroposterior and vertical discrepancies. Force decay over a period of time is a major problem in the clinical...

2009
Rogério Lacerda dos Santos Matheus Melo Pithon Gabriella da Silva Mendes Maria Teresa Villela Romanos Antônio Carlos de Oliveira Ruellas

OBJECTIVES Natural latex does not fall into the category of materials known to be entirely inoffensive. The purpose of this in vitro study was to test the hypothesis that there is no difference in the cytotoxicity between elastics of different colors and those from different manufacturers. MATERIAL AND METHODS Different latex intraoral elastics of different colors (5/16 = 7.9 mm, mean load) w...

Journal: :European journal of orthodontics 2012
Noelia López Ascensión Vicente Luis A Bravo José L Calvo Manuel Canteras

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...

Journal: :journal of dentistry, tehran university of medical sciences 0
shiva alavi associate professor, torabinejad dental research center, department of orthodontics, school of dentistry, isfahan university of medical sciences, isfahan, iran. atusa rahnama tabatabaie private practice of orthodontics, tehran, iran. fatemeh hajizadeh assistant professor, department of orthodontics, school of dentistry, ahvaz jundishapur university of medical sciences, ahvaz, iran. alireza haerian ardekani postgraduate student of orthodontics, department of orthodontics, school of dentistry, isfahan university of medical sciences, isfahan, iran.

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.in this in-vitro study sixty non-latex elastics (3/16 medium) from three companies (forestadent, dentaurum and ortho technology) were randomly selected. two static test...

2014
Shiva Alavi Atusa Rahnama Tabatabaie Fatemeh Hajizadeh Alireza Haerian Ardekani

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...

Journal: :Applied sciences 2023

The main characteristic of orthodontic intermaxillary elastics is the generated force. Therefore, it necessary to know exact properties for clinical use and their force degradation over time. Methods: A total 500 latex type 3/16” Medium from manufacturers Dentaurum, American Orthodontics, 3M, Ortho Organizers, G&H Orthodontics were tested; 100 each. was measured with a meter at time 0 2, 8,...

Journal: :Orthodontics & craniofacial research 2010
R L dos Santos M M Pithon F O Martins M T V Romanos A C de Oliveira Ruellas

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...

2011
Daniel J. Fernandes Gisele M. Abrahão Carlos N. Elias Alvaro M. Mendes

To evaluate force extension relaxation of different brands and diameters of latex elastics subjected to static tensile testing under an apparatus designed to simulate oral environments, sample sizes of 5 elastics from American Orthodontics (AO), Tp, and Morelli Orthodontics (Mo) of equivalent medium force, (3/16, 1/4, and 5/16 inch size) were tested. The forces were read after 1-, 3-, 6-, 12- a...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید