Hi! Welcome to Healthcare magic. I read your query. For braces at the age of 37, you first need to consult an orthodontist. Braces give best results betwedn ages of 14 and 28. However, adult and old aged orthodontics is practiced as well. Otlrthodontist will study your dental casts as well as your OPG and lateral cephalogram. Treatment may take little longer time than usual. Diabetes or high blood sugar dont effect this treatment except at times high sugar may lead to gum bleeding and bad breath. After starting the treatment, maintain your sugar level, maintain good oral hygiene. Get regular oral prophylaxis done. Use special orthodontics brush, mouthwash and sugarless gums. Your orthodontist will guids you accordingly. Hope the answer helps you. Thank you!