No abstract available.

No abstract available.
Adenoma, Pleomorphic ; Mouth Mucosa

No abstract available.

No abstract available.
Carcinoma, Verrucous ; Lip

Adult ; Connective Tissue ; Extremities ; Head ; Histiocytoma, Malignant Fibrous ; Humans ; Maxilla ; Neck ; Radiotherapy ; Sarcoma

No abstract available.
Calcinosis* ; Humans ; Infant*

Basal cell nevus syndrome is inherited as an autosomal dominant trait with variable expressivity. This syndrome comprises a number of abnormalities such as multiple nevoid basal cell carcinomas of the skin, skeletal abnormalities as bifid rib and fusion of vertebrae, central nervous system abnormalities as mental retardation, eye abnormalities, and multiple odontogenic kerato cysts. In 1960, Gorlin and Goltz first described the features of this disease as constituting a true syndrome; since then, it has been realized that it is much more complex and encompassing than initially thought. This patient has many symtoms of basal cell nevus syndrome. we has known multiple jaw cysts through panorama and facial computed tomography. He has hyperchromatism on basal cell through skin biopsy. In ophthalmologic consult, he has blindness on right. On his past medical history, amputation was done on his toes for polyductalism. - So we report with literature reviews
Amputation ; Basal Cell Nevus Syndrome* ; Biopsy ; Blindness ; Carcinoma, Basal Cell ; Central Nervous System ; Eye Abnormalities ; Humans ; Intellectual Disability ; Jaw Cysts ; Odontogenic Cysts ; Ribs ; Skin ; Spine ; Toes

The osteochondroma, also known as osteocartilaginous exostosis, is one of the most common benign tumors of the axial skeleton. These tumours rarely affect the facial skeleton and a true osteochondroma of the mandibular condyle is a very uncommon entity. The tumors are usually slow growing, and symptoms develop over a long time. The most common presentation of the condylar osteochondroma consists of a changing occlusion, the development of facial asymmetry, and a posterior open bite on the affected side. In this case, we treated an osteochondroma of Lt. mandibular condyle through excision of the lesion via the temporal approach to the temporomandibular joint.
Facial Asymmetry ; Mandibular Condyle* ; Open Bite ; Osteochondroma ; Skeleton ; Temporomandibular Joint

As jaws of children differ from those of adults in the aspects of architectural and mechanical properties, site, form and treatment modality of pediatric fractured jaws are somewhat different from those of adults. This study takes stastics of 33 pediatric patients with mandibular fractures (55 fracture sites) who were admitted to the department of oral and maxillofacial surgery. Kyung-hee university from May 1986 to March 1995, aged up to 15years with primary or mixed dentition, by age, cause, site and treatment modality. The results are as follows. 1. The mandibular fracture has sexual predilection for male, 0 to 3 years group. 2. The main cause of mandibular fracture is falling from various position, followed by traffic accident. 3. The highest incidence of fracture site is symphysis and/or condyle area. 4. Circumferential wiring is widely used for pediatric mandibular fracture.
Accidents, Traffic ; Adult ; Child ; Dentition, Mixed ; Humans ; Incidence ; Jaw ; Male ; Mandibular Fractures* ; Surgery, Oral

Retinal prostheses are being developed to restore vision for the blind with retinal diseases such as retinitis pigmentosa (RP) or age-related macular degeneration (AMD). Since retinal prostheses depend upon electrical stimulation to control neural activity, optimal stimulation parameters for successful encoding of visual information are one of the most important requirements to enable visual perception. Therefore, in this paper, we focused on retinal ganglion cell (RGC) responses to different voltage stimulation parameters and compared threshold charge densities in normal and rd1 mice. For this purpose, we used in vitro preparation for the retina of normal and rd1 mice on micro-electrode arrays. When the neural network of rd1 mouse retinas is stimulated with voltage-controlled pulses, RGCs in degenerated retina also respond to voltage amplitude or voltage duration modulation as well in wild-type RGCs. But the temporal pattern of RGCs response is very different; in wild-type RGCs, single peak within 100 ms appears while in RGCs in degenerated retina multiple peaks (~4 peaks) with ~10 Hz rhythm within 400 ms appear. The thresholds for electrical activation of RGCs are overall more elevated in rd1 mouse retinas compared to wild-type mouse retinas: The thresholds for activation of RGCs in rd1 mouse retinas were on average two times higher (70.50~99.87micronC/cm2 vs. 37.23~61.65micronC/cm2) in the experiment of voltage amplitude modulation and five times higher (120.5~170.6micronC/cm2 vs. 22.69~37.57micronC/cm2) in the experiment of voltage duration modulation than those in wild-type mouse retinas. This is compatible with the findings from human studies that the currents required for evoking visual percepts in RP patients is much higher than those needed in healthy individuals. These results will be used as a guideline for optimal stimulation parameters for upcoming Korean-type retinal prosthesis.
Animals ; Electric Stimulation ; Fees and Charges ; Humans ; Macular Degeneration ; Mice ; Retina ; Retinal Diseases ; Retinal Ganglion Cells ; Retinaldehyde ; Retinitis Pigmentosa ; Vision, Ocular ; Visual Perception ; Visual Prosthesis