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Clinical. Cementoblastoma usually occurs in people between the ages of 20 to 30, equally affecting males and females. [4] It is more commonly found in the mandible compared to the maxilla (3.4:1), with 40% of cases being found in the first mandibular molar area and incisor involvement being extremely rare.
When there is a case of hypodontia of the permanent premolar teeth, the primary molar teeth would often remain in the mouth beyond the time they are meant to be lost. [76] Therefore, with a presence of healthy primary teeth in the absence of a permanent successor, retaining the primary teeth can be a feasible management of hypodontia.
Human Tooth Diagram. Cementoma is an odontogenic tumor of cementum.It is usually observed as a benign spherical mass of hard tissue fused to the root of a tooth. [1] It is found most commonly in the mandible in the region of the lower molar teeth, occurring between the ages of 8 and 30 in both sexes with equal frequency . [1]
Other symptoms may include hypoesthesia, paresthesia, and discomfort. [3] In rare instances, patients may experience associated facial swelling with the presence or absence of pain due to concurrent infection. [4] Patients experiencing symptoms also tend to be older and have the periapical form of cemento-osseous dysplasia. [3]
General symptoms include decreased tooth count, abnormal tooth enamel, curving of the fifth digit, enlarged lower jaw and abnormal dentition, with decreased tooth count as the most frequent symptom. [4] For non-growing subjects who possess fully developed permanent teeth, there may not be any observable symptoms.
The vertical jaw abnormalities relating to the mandible are in relation to excessive vertical growth and excessive horizontal growth, measured by the maxillary-mandibular plane angle (MMPA). The vertical jaw abnormalities relating to the maxilla are in relation to excessive downward displacement (EDD) and insufficient downward displacement (IDD).
There are 32 permanent teeth and those of the maxillae (on the top) erupt in a different order from permanent mandibular (on the bottom) teeth. Maxillary teeth typically erupt in the following order: (1) first molar (2) central incisor, (3) lateral incisor, (4) first premolar, (5) second premolar, (6) canine, (7) second molar, and (8) third molar.
The teeth should all fit on a line of occlusion which, in the upper arch, is a smooth curve through the central fossae of the posterior teeth and cingulum of the canines and incisors, and in the lower arch, is a smooth curve through the buccal cusps of the posterior teeth and incisal edges of the anterior teeth.