The effect of treatment timing on clinical and psychological outcomes with Twin Block therapy: A multicentre two-arm parallel randomised controlled trial

Le résumé fourni par la source

OBJECTIVE: To evaluate whether delaying treatment with a twin block appliance affects treatment outcomes, in terms of skeletal and dental change and psychological disadvantage. DESIGN: Multicentre, two-arm parallel randomised controlled trial. SETTING: Three UK hospital orthodontic units. METHODS: A total of 75 participants were randomly allocated into an Immediate Treatment Group (ITG) (n= 41) and an 18-month delayed Later Treatment Group (LTG) (n=34). OUTCOMES: Dentofacial changes were recorded from lateral cephalograms and study models, psychological impact was measured using a child perception questionnaire (CPQ11-14) and an Oral Aesthetic Subjective Impact Score (OASIS) at registration (DC1), 18 months (DC2) and 3 years (DC3). RESULTS: >0.05). CONCLUSION: Participants achieved similar clinical and psychological outcomes irrespective of whether they started their twin block at the age of referral (ITG) or 18 months later (LTG). This suggests that boys aged 12 years 8 months and girls aged 11 years 8 months, on average, are not disadvantaged by waiting 18 months for active twin block treatment.

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