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This case report presented the orthodontic treatment for an 18-year-old female patient who has Class I malocclusion with bilateral missing maxillary lateral incisors, proclined lower incisors and slight convex profile.According to the profile of the patient, the space analysis of dentition and the color and shape of canine, these above factors favored canine substitution and lower first premolar extraction as our treatment plan.The anterior teeth esthetics was achieved by orthodontic space closure and rehabilitated by composite resin build-up.The patient was satisfied with the treatment outcome.
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Tzu Hsin Lee (2019) studied this question.
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