Multiple myeloma is a clonal neoplastic proliferation of terminally differentiated B-lymphocytes involving the skeletal system in a multifocal fashion. Its oral manifestations are less common in the maxilla than in the mandible due to the lower amount of hemopoietic bone marrow in the maxilla. We report the case of a 50-year-old man who presented with a mass in the left maxillary alveolar regio...

Tooth loss, which interrupts the biocybernetic feedback circuit of the masticatory system, changes the structures of the jaw bone: such changes are termed "inactivity atrophy". The mandible is subject to vertical atrophy and the maxilla is primarily subject to horizontal atrophy. The mandible possesses more compact bone, the maxilla more spongy; the resorption directions also differ (mandible: ...

BACKGROUND The purpose of this analysis was to evaluate the displacement patterns of the maxilla under parallel and rotational setbacks using the finite element method (FEM). MATERIAL AND METHODS A three-dimensional (3D) finite element model of a hemimaxilla was constructed. Through a conventional Le Fort I osteotomy, 2 and 3 mm of posterior movement in a parallel and rotational manner were sim...

The purpose of this study was to evaluate preoperative CT-derived bone densities in Hounsfield units (HU) at implant sites that acquired primary stability, and to compare these values to the optimal bone densities proposed in the literature. Fifty-one patients, 18 males (37 implant sites) and 33 females (67 implant sites) between 2003 and 2010 were assessed. CT data for different jaw sections, ...

The oromandibular-limb hypogenesis syndrome comprises a group of anomalies which simultaneously affect the mandible, tongue, and maxilla with or without reductive limb anomalies. It is characterized by failure of development of the intraoral region and distal extremities. Multiple and variable deformities of the mandible, maxilla and tongue may occur in combination with a variety of limb defect...

Over the nasal bones and lateral cartilages the skin is thin and fairly freely movable. The skin is much thicker, contains more glands, and is firmly adherent over the alar cartilages. The blood supply is mainly in the soft tissues. The dissection should lie in planes of cleavage whereby vessels are avoided and bleeding is minimized. The bony nose consists of paired nasal bones which are thin i...

THE purpose of the present study is to describe and interpret the sequence of remodeling changes which take place during the postnatal growth of the young human maxilla. This report is a sequel to previous studies dealing with principles of bone remodeling and with the postnatal growth of the human mandible.l-” As the growing maxilla increases in size, there is a companion process of remodeling...

Oral mucormycosis is a fungal infection observed mainly in elderly immunocompromised patients. In rare instances, the disease occurs in healthy individuals and those patients that are below preschool age. Although this condition mainly involves the maxilla, it may also manifest in any part of the oral cavity based on the source of infection. Mucormycosis of the maxilla spreads rapidly, leading ...

Multiple myeloma is a malignant neoplasm of plasma cells characterized by proliferation of a single clone of abnormal immunoglobulin-secreting plasma cells. Since the amount of hemopoietic bone marrow is decreased in the maxilla, oral manifestations of multiple myeloma are less common in the maxilla than in the mandible. We report the case of 33-year-old Japanese man who presented with a mass i...

Interpretations by Glaus and Giesbrccht of the identity of the distal segments of the maxilla 2 and maxillipcd in eopepods arc reviewed. 'I'he developmental pattern of setal additions to these appendages suggests that the distal segments of maxilla 2 arc exopodal, while those of the maxillipcd are endopodal; these data are consistent with the interpretation of Glaus. Information about the genet...