Questionnaire investigation after orthodontic treatment in patients with unilateral cleft lip and palate: An inter-clinic collaborative study

This study clarified the subjective effects and problems with orthodontic treatment in patients with UCLP in Japan. Satisfaction after treatment was high. Anticipated esthetic improvement was accomplished and masticatory problems improved. Orthodontic treatment also positively affected speech. Efficient orthodontic treatment to minimize treatment duration and improved treatment systems for easier access are needed to reduce patient burdens in Japan.