Incisors are commonly referred to as incisors in people’s lives and medically known as incisors. The incisors are the middlemost teeth in the tooth row, located on either side of the midline of the face, and are two maxillary central incisors, two maxillary lateral incisors, two mandibular central incisors, and two mandibular lateral incisors, for a total of eight teeth. The main functions of the incisors are pronunciation, speech, cutting food, and maintaining the aesthetics of the dentition. Because the incisors are located at the front of the tooth row, they are susceptible to trauma, resulting in fractures or dislocations. The protection of incisors needs special attention to avoid premature decay of incisors and trauma to incisors, which may lead to fracture or dislocation of teeth, which not only affects the aesthetics, but also affects eating and pronunciation.