Maxillary(Upper jaw) central incisors

The maxillary central incisor is a human tooth in the front upper jaw, or maxilla, and is usually the most visible of all teeth in the mouth. The permanent maxillary central incisor is the widest tooth mesiodistally in comparison to any other anterior tooth. It is larger than the neighboring lateral incisor and is usually not as convex on its labial surface. As a result, the central incisor appears to be more rectangular or square in shape. The mesial incisal angle is sharper than the distal incisal angle.Generally, there are gender differences in the appearance of this tooth. In males, the size of the maxillary central incisor is larger usually than in females. Gender differences in enamel thicknes and dentin width are low. Age differences in the gingival-incisal length of maxillary central incisors are seen and are attributed to normal attrition occurring throughout life. Thus, younger individuals have a greater gingival incisal length of the teeth than older individuals.In the permanent maxillary central incisor, root canal treatment can be effective. There frequently are three pulp horns in this tooth.[10] In nearly all maxillary central incisors, there is one canal with one apex.[15] During root canal therapy, access into the pulp is frequently located centrally on the lingual surface between the incisal edge and the cingulum. At the level of the cervical line, the shape of the canal is triangular but becomes circular at the middle level of the root.[15] Although the root is generally straight, the most common points of curvature is near the apex, and their direction is more common toward the distal and lingual.In the international notation, right permanent maxillary central incisor known as "11", and the left one is known as "21".

This is the picture showing actual view of what maxillary central incisors look like inside the mouth.

This is the radiographic view of maxillary central incisors

Дата добавления: 2015-08-20