Four Cases of Angular Cheilitis in Orthodontic Patients

[摘要] Contact dermatitis is an inflammatory reaction of the skin and mucosa to either external or internal factors. It can be divided to two forms of irritant contact dermatitis and allergic contact dermatitis.Nickel is one of the most common materials that causes allergic contact dermatitis and is widely used in orthodontic appliances. The inflammatory reaction to this metal in orthodontics is usually stomatitis and angular cheilitis is very rare.We report 4 cases of angular cheilitis in orthodontic patients and discuss about their causes and treatments.

[学科分类] 药学、药理学、毒理学（综合）

[关键词] Adapted minicutting technique;Length of mini-cuttings;Mini-stumps shading;Ornamental plants cloning;Vegetative propagation.