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Circular or ovoid radiolucency surrounding the root tip of approximately 1-1.5 cm in diameter is indicative of the presence of a periapical cyst. [2] The border of the cyst is seen as a narrow opaque margin contiguous with the lamina dura. In cysts that are actively enlarging, peripheral areas of the margin may not be present. Periapical cysts ...
A lump may be felt, which may feel hard if there is still bone covering the cyst, or fluctuant if the cyst has eroded through the bone surrounding it. [5] A cyst may become acutely infected, and discharge into the oral cavity via a sinus. Adjacent teeth may be loosened, tilted or even moved bodily. [6]
B. Non-epithelial-lined cysts 1. Solitary bone cyst; 2. Aneurysmal bone cyst; II. Cysts associated with the maxillary antrum 1. Mucocele; 2. Retention cyst; 3. Pseudocyst; 4. Postoperative maxillary cyst; III. Cysts of the soft tissues of the mouth, face and neck 1. Dermoid and epidermoid cysts; 2. Lymphoepithelial (branchial) cyst; 3 ...
Ostectomy or En – bloc resection: in addition to the above treatments, these may be required due to the issue of recurrence. Ostectomy is removal of peripheral bone. En – block resection is removal of the cyst with the surrounding tissue. Extensive cysts may require a bone graft after bone resection and reconstruction of the area.
The epithelial cell rests of Malassez presented in the roots surface, principal location of the LPC, play a role in LPC formation. [8]Several additional theories had been proposed regarding the origin of lateral periodontal cysts, including the possibility that the lesions may arise as a result of pulpal infection manifesting itself in a lateral position or chronic periodontal disease ...
On the other hand, only 2.7 percent of dentigerous cysts involved the maxillary premolar. Mourshed stated that the incidence of dentigerous cyst has been reported as 1.44 in every 100 unerupted teeth, [12] so dentigerous cysts involving the premolars are rare. Dentigerous cysts most commonly occur in the 2nd and 3rd decades of life.
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(1) The HERS, (2) epithelial rests of Malassez, (3) dental follicle, (4) cementoblasts, (5) periodontal ligament, (6) alveolar cells, (7) bone, (8) odontoblasts. In dentistry, the epithelial cell rests of Malassez (ERM) or epithelial rests of Malassez (pax epithelialis pediodontii) are part of the periodontal ligament cells around a tooth.