A 23 year-old female with skeleto-dentoalveolar protrusion of maxilla, minor broken contact points between anterior teeth, and missing of lower 1st molars, has been treated with multibanded edgewise technique. After treatment of 14 months, she has gained functional overbite-overjet relationship and facial harmony due to the retraction of upper anterior teeth. Root resorption was slight. Especially, us ing the space of missed lower 1st molars instead of extracting lower premolars, expected and favorable results were obtained.
Adult* ; Bicuspid ; Female ; Humans ; Maxilla ; Molar ; Prognathism* ; Root Resorption ; Tooth ; Young Adult

No abstract available.
Heart Diseases* ; Heart*

The ankle is a complex structure supporting the entire musculoskeletal system during standing and walking. The injuries to the ankle joint result in a severe functional disturbance because of complex anatomical characteristics around the ankle joint. 284 patients of the ankle fracture that were treated in orthopedic Dept. Capital Armed Forced General Hospital from march 1985. to march 1988. were analized in clinical and radiological aspects. The following results were obtained: 1. The main cause of the injuries was falling from a height and the other were sports injury and slipping down in order. 2. The most common type by Lauge-Hansen classification was supination-external rotation type(122 case, 42.9%). 3. 211 case(74.3%) were treated with open reduction and internal fixation, and 73 case(25.7%) were treated with closed reduction. Poor outcome seemed closely related to the severity of the injury and degree of fracture displacement. 4. Accurate reduction and rigid internal fixation of the lateral malleolus with shortening was important factor. 5. Classification of Lauge-Hansen was useful in the diagnosis and treatment of the ankle fractures.
Accidental Falls ; Ankle Fractures ; Ankle Joint ; Ankle ; Arm ; Athletic Injuries ; Classification ; Clinical Study ; Diagnosis ; Hospitals, General ; Humans ; Musculoskeletal System ; Orthopedics ; Walking

When treating borderline cases which have mild crowding, non-extraction treatment may be considered firstly. But crowding may be reappeared by relapse and it may have problems in esthetics and stability. Secondarily four first premolar extraction treatment may be considered. But this may cause dish-in face by overretracting anterior teeth. In this cases, extraction of four second premolar is preferred because this resolves crowding without aggravating profile and has good stability after treatment. So we review cases treated by four second premolar extraction which show good treatment results and stability. The patients had good profile, Class I molar relationship, mild crowding and skeletal discrepancy and their growth had almost completed.
Bicuspid* ; Crowding ; Esthetics ; Humans ; Molar ; Recurrence ; Tooth

No abstract available.
Prognathism

No abstract available.
Cyclotrons*

No abstract available.
Coronary Artery Bypass* ; Coronary Vessels*

Progressive zosteriform macular pigmented lesion(PZMPL) is a chronic pigmentary dermatosis similar to progressive cribriform and zosteriform hyperpigmentation(PCZH). This dermatosis described by Simoes in 1980 is characterized by a uniformly tanned macular pigmented lesion in a zosteriform distribution preceded by multiple pruritic macular pigmentation in a part of the dermatome for a period. PZMPL is not a fully understood disease entity but it is thought to be a variant of PCZH. It is differentiated from PCZH by accompanying pruritus as a prodromal symptom, a characteristic clinical course, and histological findings such as pigmentary incontinence. We report herein a case of PZMPL in a 17 year-old girl with the pigmentary skin lesion extending from the left forearm to the left chest along the Blaschkos line. The histological findings revealed increased melanin pigments in the basal layer and focal pigmentary incontinence in the upper dermis. To our knowledge, this case is the first report of PZMPL in korea thought to be the same case reported by Simoes.
Adolescent ; Dermis ; Female ; Forearm ; Humans ; Korea ; Melanins ; Pigmentation ; Prodromal Symptoms ; Pruritus ; Skin ; Skin Diseases ; Thorax ; Triacetoneamine-N-Oxyl

PURPOSE: Racemose hemangiomas of the retina are rare developmental vascular anomalies with abnormal arteriovenous anastomoses. We report our observations of a retinal racemose hemangioma with marked dilation and tortuosity of the retinal vessels in the entire left retina. METHODS: In a 9-year-old boy with loss of vision and mild esotropia who presented with hugely dilated and tortuous retinal vessels in left retina, we examined fundus, fluorescein angiography, cerebral angiography, brain CT and MRI. RESULTS: Fundus and fluorescein angiography of the left eye showed marked dilation and tortuosity of the retinal vessels. Angiographic finding showed rapid filling of all vessels and no dye leakage. MRI finding revealed small tortuous vessels around left optic nerve, optic chiasm and tract. Brain CT and cerebral angiography showed nothing abnormal.
Arteriovenous Anastomosis ; Brain ; Cerebral Angiography ; Child ; Esotropia ; Fluorescein Angiography ; Hemangioma* ; Humans ; Magnetic Resonance Imaging ; Male ; Optic Chiasm ; Optic Nerve ; Retina ; Retinal Vessels ; Retinaldehyde*

The metal ceramic crown is currently the most popular complete veneer restoration in dentistry, but in many cases, the metal cervical collar at the facial margin is unesthetic and unacceptable. Facial porcelain margin has been used in place of it. But this dose not solve the problems, such as dark gingival discoloration and cervical opaque reflection of porcelain veneer. Recently, metal copings which were designed to terminate its labio-cervical end on the axial walls coronal to the shoulder have been clinically used to solve the esthetic problem of metal ceramic crown. But in this design, porcelain veneer of labio-cervical area which is not supported by metal may not be able to resist the stress during cementation and mastication. The purpose of this study was to evaluate fracture strength and fractured appearance of crowns according to different coping designs. A resin maxillary left central incisor analogue was prepared for a metal ceramic crown, and metal dies were made with duplication mold. Metal copings were made and assigned to one of four groups based on facial framework designs: group 1, coping with 0.5mm metal collar; group 2, metal extended to the shoulder; group 3, metal extended to 1 mm coronal to the shoulder; group 4, metal extended to 2mm coronal to the shoulder. Copings and crowns were adjusted to be same size and thickness, and cemented to metal dies with zinc phosphate cement by finger pressure. Fracture strength was measured with Instron Universal Testing Machine. Metaldies were anchored in Three-way-vice at 3mm below finish line and at 130degree inclined to the lone axis of the crown. Load was directed lingually at 2mm below midincisal edge. Load value at initial crack and at catastrophic fracture was recorded. The results obtained were as follows: 1. Fracture strength values at initial crack were higher in groups 1, 2 than in groups 3, 4 but this difference was not statistically significant(P<0.05). 2. Conventional metal collared crown had greater catastrophic fracture strength than any other collarless crowns. 3. The greater the labial metal coping reduction, the lower the catastrophic fracture strength of crowns but when more than 1mm of labial metal reduction was done, the difference in strengths was not statistically significant(p<0.05). 4. The strongest collarless coping design was group 2.
Axis, Cervical Vertebra ; Cementation ; Ceramics* ; Crowns* ; Dental Porcelain ; Dentistry ; Fingers ; Fungi ; Incisor ; Mastication ; Shoulder ; Zinc Phosphate Cement