Invisalign Therapy in a Case of Mandibular Incisor Extraction

Clear aligners have been sought by patients as an aesthetic alternative to conventional orthodontic treatment. Despite the limitation that the aligner system offers, its use has improved over time. Hereby, authors discusses case of a 35-year-old female with Angle’s Class I malocclusion patient with severe mandibular crowding who was treated with mandibular incisor extraction using the Invisalign system. Clinical and radiographic examination revealed skeletal Class I malocclusion, severe crowding of the lower incisors, light crowding of the upper incisors, crossbite of the mandibular right canine, a convex profile, prominent lower lip, and a Bolton discrepancy in the lower anterior region. Fourteen trays were used in the maxillary arch and 28 in the mandibular arch. Two additional refinements, one with 13 and the other with 10 trays were delivered. After 2 years and 2 months of active treatment, good posterior occlusion and alignment of the teeth with adequate occlusion function and a balanced smile were achieved. The maxillary retainer was used continuously for 1 year, and at night until now. Successful tooth alignment and space closure were maintained, and the patient was satisfied with the results on the 2 year follow-up