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The average showing of the incisors when the lips are at rest is 1/3 of its clinical crown height. With maxillary excess, more than 1/3 of the incisors would show. When the patient smiles, maxillary excess would manifest as the entire clinical crown and a portion of the gums showing as well. [42] This is regarded as a ‘gummy smile.’
Clinically, buccal exostoses appear as single, broad-based masses, usually situated bilaterally in the premolar and molar region on the facial surface of the maxillary alveolar bone. [11] The mass is generally smooth although in some cases a sharp, bony prominence may be present resulting in tenderness beneath the mucosa. [ 12 ]
Odontogenic myxomas have been found in patients ranging in age between 2 and 50 years, however, they are most commonly diagnosed in young adults (specifically between 25 and 35 years of age). [ 3 ] [ 4 ] The mandible is more likely to be affected than the maxilla .
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]
Expansion of the cyst causes erosion of the floor of the maxillary sinus. As soon as it enters the maxillary antrum, the expansion rate increases due to available space for expansion. Performing a percussion test by tapping the affected teeth will cause shooting pain. This is often clinically diagnostic of pulpal infection. [citation needed]
Cysts rarely cause any symptoms, unless they become secondarily infected. [1] The signs depend mostly upon the size and location of the cyst. If the cyst has not expanded beyond the normal anatomical boundaries of the bone, then there will be no palpable lump outside or inside the mouth. The vast majority of cysts expand slowly, and the ...
Odontogenic keratocysts can occur at any age, however they are more common in the third to sixth decades. The male to female ratio is approximately 2:1. The majority are found in the mandible, with half occurring at the angle of the mandible. Early odontogenic keratocysts usually do not display symptoms.
[13] [14] [15] Males have been reported to be more prevalent than females with a ratio of 1.8:1. These cysts can also be found in young children and adolescents. The age of presentation of these cysts range from 3 years to 57 years with a mean of 22.5 years. These cysts are commonly single lesions.