Estudio comparativo in vitro de la fricción en tubos y brackets de autoligado

Abstract

Resistant to sliding of molar buccal tubes have not been previously investigated.Although the enormous impact that self-ligating bracket have in modern orthodontics,information from the posterior segments of our systems need to be taken intoconsideration. Some studiestested brackets and tubes as an entire system but notindividual data had been provided from tubes through an in vitro study.The goal of this study was to compare not only the frictional resistance betweenbrackets and tubes but also, to realize that our systems and techniques which are formedof these two components (brackets and tubes) had similar characteristics and equalcompromising values between friction and control.OverviewIn order for orthodontic movement to occur, resistance due to the brackettubes/archwire friction as well as the biological interfaces must be overcome. Some ofthe biological variables are: structure of the alveolar bone, elasticity of the periodontalligament, muscle activity and remodeling of bone. These biological activities differfrom patient to patient and cannot be easily measured and compared.Three- dimensional control of the molars as angulation (tipping), inclination (torque)and rotation has been of great interest during the years for different techniques. Controlof the posterior segments (molars) in a vertical plane and anchorage preparation by adistal angulation of the posterior segments, have been and still are the keys for someorthodontic philosophies...