Hemangioma is a benign vascular tumor that affects 3%-10% of the population and usually does not require specific treatment due to spontaneous regression. The purpose of this paper is to present a case report of a child having been born prematurely and diagnosed with hemangioma in the head and neck, emphasizing the dentofacial changes and treatment used to provide care. Severe fibrous scars were found in the perioral region and below the ear that limited the patient's ability to open her mouth. The child exhibited anterior open bite as well as dental caries in the lower jaw, hypomineralization, and enamel hypoplasia. Treatment consisted of dietary and oral hygiene orientations, dental prophylaxis, topical 1:23% acidulated phosphate fluoride gel, removal of the carious tissue, sealing with glass ionomer cement, and extraction. Dentists need to have knowledge on hemangioma for a proper diagnosis and the optimization of dental treatment.