Tomographic evaluation of changes induced by herbst treatment - buccolingual inclination of mandibular canines and the intercanine distance

The aim of this study was to perform a three-dimensional evaluation Herbst appliance effects on the mandibular canines.The subjects consisted 23 Class II:1 patients (12 men, 11 women), mean age 15.76± 1.75 years, consecutively treated with Flip-Lock Herbst®appliance (TP Orthodontics, Inc., La Porte, IN, USA). lower anchorage unit for two anchor bands connected by lingual arch 3mm distance from incisor’s surface. Treatment changes in canine inclination and intercanine width at cusp apex levels were evaluated means cone-beam computed tomography images (i-CAT® Classic unit, Imaging Sciences International, Hatfield, PA, USA) obtained before after treatment appliance. There no statistical differences between genders. did not result any statistically significant width. associations (/r/ = 0.43 0.66) 0.34 0.60). three-dimensionalcone-beam analysis segment revealed that distant surface does change significantly during treatment. However, large interindividual may undesired amount loss individual patients.