The Re-Establishment of a Synchronized Canine Guided Occlusion in a Case with an Early Extracted Lower Canine Using Orthodontic Mini-Implants

One of the salient aims of orthodontic treatment is to acquire a well-established functional bite. This could be reached through having what is called a “canine guided occlusion”. In this type of occlusion the upper and lower canines guide the bite of the rest of the teeth especially during lateral movements. This aids to attain robust masticatory functions and to secure a convenient environment for the health of the Temporo-mandibular joint. In this study a case with early extraction of a permanent lower canine is presented. The recreation of a “canine guided occlusion” was done by orthodontic treatment. Orthodontic mini-screws were placed in the upper arch and some frictionless mechanics in the lower arch. The canine guided occlusion was finally re-established by moving the lower 1st premolar in place of the lower canine with some modifications in its angulation and vertical position. The creation of a harmonious canine guided occlusion was checked and confirmed before the removal of the orthodontic appliance. The orthodontic treatment of the current case not only aided in establishing “canine guided occlusion” but also helped to enhance the facial appearance of the patient in terms of reducing facial convexity, aligning the teeth and reducing the incisal show at rest.