Modified two by four appliance for single tooth anterior crossbite correction

Mixed dentition stage is a period of transition from primary teeth to permanent teeth. It is considered as one of the most crucial age for orthodontic treatment because of growth. Orthodontic treatment can be done as early as 7 years. Early correction of malocclusion can also ensure a proper growth and development. One of the appliances which can intercept the early malocclusion is the two by four appliance (2 × 4 appliance). This paper presents a case of anterior single tooth crossbite treated using a versatile modified 2 × 4 appliance.