This research aimed to evaluate the oral hygiene status in fixed orthodontic appliance patients when using two different slim bristles toothbrushes and to assess patients’ toothbrush perception. Twenty six fixed orthodontic appliance patients participated in the six weeks prospective, crossover clinical trial. All patients used two different slim bristles toothbrushes (Toothbrush A and Toothbrush B) for two weeks each with a washout period in between. Gingival health and plaque value were assessed based on Lӧe & Silness Gingival Index and Silness & Lӧe Plaque Index at baseline, week 2, week 4 (washout) and week 6. At the end of the trial, patients’ toothbrush perception was assessed through questionnaire. All data were analysed using SPSS version 22. The mean age of the patients was 21.5 ± 4.3 years, with female predominant (n= 17, 65.4%). More than half were Malay (n= 15, 57.7%) and had tertiary education (n=14, 53.8%). Patients could achieve good oral hygiene when using Toothbrush A (65.4%) and Toothbrush B (69.2%). However, the occurrence of gingivitis was significantly higher when using Toothbrush A (OR=1.889, 95% CI=1.207-2.957, p value < 0.05). Toothbrush B was felt to clean better (n= 14, 53.8%) while Toothbrush A was perceived to be easier to use (n=14, 53.8%). Both toothbrushes maintained patients’ oral hygiene status. However, when using Toothbrush B, oral health status was better as it significantly reduced gingivitis occurrence compared to Toothbrush A. As for the toothbrush perception, most patients preferred Toothbrush A to be taken home.

PURPOSE:The project of the neonatal mass screening test for inborn errors of metabolism are just at the beginning in Korea and there was a few reports about the overall incidence and subtypes of congenital hypothyroidism. METHODS:In this study, we analysed the 97 cases of newborns with hyperthyrotropinemia who were detected by neonatal screening test to identify the incidence and early clinical manifestations of each subtypes of congenital hypothyroidism. Thyroid function were measured by thyrotropin(TSH) level, T4, T3, Free T4, Free T3, thyroglobulin, T3 resin uptake, TBII, TBG in serum, thyroid ultrasonography and 99mTc thyroid scan. We reanalysed the thyroid functions 1 week after discontinuance of L-thyroxine treatment for 1 year. RESULTS: 1) The time of neonatal screening test were between 3 and 7 days after birth in 46 cases(47.4%) and 8 and 14 days after birth in 35 cases(36.1%). Two cases (2.1%) were done neonatal screening test at the age of 2 days old. 2) The major cause of thyroid disorders were primary hypothyroidism in 45 cases of the total due to thyroid aplasia(7 cases), thyroid hypoplasia(17 cases), ectopic thyroid gland(12 cases) and dyshormonogenesis(9 cases). Other causes of thyroid disorders were TBG deficiency(11 cases), TBG dysfuction(1 case), transient hyperthyrotropinemia(28 cases) and transient hypothyroidism(12 cases). 3) Serum level of thyrotropin(TSH) at diagnosis were 223.5+/-229.6microU/ml in thyroid aplasia, 41.6+/-42.9microU/ml in thyroid hypoplasia, 52.4+/-55.6microU/ml in ectopic thyroid gland. TSH levels were significantly high in thyroid aplasia. T4 levels in thyroid aplasia are 1.7+/-2.0microg/dl and this is significantly lower than other types of thyroid disorders. T3 levels were within normal range except in thyroid aplasia and TBG deficiency. 4) Prolongation of physiologic jaundice was the most common clinical manifestation(33.3%) in patients with primary hypothyroidism and macroglossia, hypothermia, umbilical hernia and cold skin were the next commom clinical manifestations in order to present. 5) Osseous development was normal in 57 cases(82.6%) out of 69 cases who accomplished roentgenographic examination of knees. Only 12 cases(17.4%) showed retardation of osseous development, but there was no significant differences between types of thyroid disorders. 6) Most of the newborn(93.3%) with primary hypothyroidism started to treatment within 8 weeks of age. 7) Initial dosage of L-thyroxine was 10microg/kg/day and decreased 6 to 12 months after treatment. 8) There was significantly decreased thyroid uptake of 99mTc after 1 year follow-up in 5 cases of dyshormonogenesis. 9) The serum TSH levels returned to normal ranges within 6 month after treatment in transient hypothyroidism and transient hyperthyrotropinemia. CONCLUSIONS:Special attention should be paid to transient hyperthyrotropinemia and transient hypothyroidism because many of the congenital thyroid disorders showed transient type and it is necessary to establish the diagnostic guideline to early detect these transient types of congenital thyroid disorders.
Congenital Hypothyroidism ; Diagnosis ; Follow-Up Studies ; Hernia, Umbilical ; Humans ; Hypothermia ; Hypothyroidism ; Incidence ; Infant, Newborn ; Jaundice ; Knee ; Korea ; Macroglossia ; Mass Screening ; Metabolism, Inborn Errors ; Neonatal Screening* ; Parturition ; Reference Values ; Skin ; Thyroglobulin ; Thyroid Dysgenesis ; Thyroid Gland* ; Thyroxine ; Ultrasonography

Early diagnosis and treatment of congenital dislocation of the hip is the only means of obtaining good results with consistent regularity. But a large number of congenital dislocation of the hip remain undiagnosed before the child begins to walk. One hundred and nine cases of congenital dislocation of the hip had been clinically diagnosed and 48 cases of them were treated conservatively or operatively at Department of Orthopedic Surgery, College of Medicine, Seoul National University from January, 1965 through September, 1975 with following results. 1. Among 109 cases of congenital dislocation of the hip, 48 cases were admitted and treated. In recent 10 years the number of the out-patient was increasing. 2. The preponderance of female to male (4:1) was found. 3. The age ranged between 3 months and 24 years, and 46 cases (42%) between 12 and 24 months. 4. In most cases the chief complaint was limping. 5. The associated congenital anomalies were observed in 3 cases of the series, comprising two cases of arthrogryposis multiplex congenita and one case of hydrocephalus. 6. The scetabular index was increased in affected hip. 7. The ratio of unilateral cases to bilateral ones was 100: 9, and right to left was 47: 53. 8. Closed reduction was satisfactory in 25 cases under 2 years of age. 9. Open reduction was necessary in 18 cases of failed closed reduction and 5 cases of redislocation. 10. Eleven cases of Salter's operation, 4 cases of Pembertons operation, 2 cases of Colonnas operation, and 8 cases of derotational osteotomy were performed to increase the stability of the hip joint.
Arthrogryposis ; Child ; Dislocations ; Early Diagnosis ; Female ; Hip Joint ; Hip ; Humans ; Hydrocephalus ; Male ; Orthopedics ; Osteotomy ; Outpatients ; Seoul

Fracture of intercondylar eminerce of the tibia indicate probable alteration of the cruciate ligament stability in the knee and occur from hyperextension injury of the knee and violent internal rotation of the tibia. Fracture of intercondylar eminence of the tibia has been classified by Meyer and Mckeever(1959, 1970) according to the degree of displacment and this classification is important as it pertains to the proper selection of treatment. The author studied 24 cases in 24 patients of fracture of the intercondylar eminerce of the tibia at the Department of Orthopedic Surgery of Severance Hospital during a 10 year period from Januaary, 1975 until December, 1984. The aim of this study was to find out incidence, cause and associated injury of the fracture of the intercondylar eminece of the tibia and was to asses the comparative results of the conservative and surgical treatment. The result of this study ase as follows ; 1. There is a predisposition for make in a ration of 3:1 and there is no age preponderance in occurance. 2.Majority of cause of injury was traffic accident(62.5%). 3.Isolated fracture of intercondylar eminence of the tibia was 15 cases (62.5%) associated knee joint injury shows 9 cases (37.5%). Among the associated knee joint injury, rupure of medial collateral ligament was 4 cases(44.4%), rupture of medial meniscus was 3 cases(33.3%) and rupture of lateral colateral ligament was 2 cases (22.2%). 4.By Meyer and Mckeever's classification, Type 2(41.7%) fracture of intercondylar eminence of the tibia was most common, and then Type 1(37.5%) and Type 3(20.8%) occured in order of frequency. 5. Type 1 and Type 2 fracture of the intercondylar eminence of the tibia resulted in good prognosis with only conservative treatment, and open reduction is not indicated. 6. Type 3 fracture of the intercondylar eminence of the tibia can be treated with conservative treatment if there is no associated injury of the knee joint.
Classification ; Clinical Study ; Collateral Ligaments ; Equidae ; Humans ; Incidence ; Knee ; Knee Joint ; Ligaments ; Menisci, Tibial ; Orthopedics ; Prognosis ; Rupture ; Tibia

No abstract available.
Femoral Neck Fractures* ; Femur Neck*

No abstract available.
Polymethyl Methacrylate*

Gorham's syndrome (Gorham's disease, Massive osteolysis, Disappearing bone disease, phantom bone) is a rare disorder characterized by histologically benign proliferation of thin-walled vascular channels originating in bone associated with extensive lysis of regional bone matrix. It starts in bone, but it may secondarily involve soft tissues and adjacent bones. Although the osteolysis usually arrests spontaneously, its biologic behavior is unpredictable. The etiolgy is still in dispute and the treatment presents many problems. The author's case was a 20-year old girl, who had pathologic fracture in neck and supracondylar area of left femur with osteolysis of left pelvis, femur, and proximal fibula and tibia. She also had lymphangioma involving bones and adjacent soft tissues. To our knowledge, there is no report on Gorham's syndrome in Korea. The authors report a case of Gorham's syndrome with review of literatures.
Bone Matrix ; Dissent and Disputes ; Female ; Femur ; Fibula ; Fractures, Spontaneous ; Humans ; Korea ; Lymphangioma ; Neck ; Osteolysis ; Osteolysis, Essential ; Pelvis ; Tibia

Osteochondroma is the most common of primary benign bone tumors. It is characterized by protruding mass from metaphysic of long bone with semitranslucent cartilaginous cap on its surface. This lesion, which has its own growth plate, usually stops growing at skeletal maturity. The multiple variant of osteochondroma, namely the osteochondromatosis, may show various deformities around the joints in its course. In addition, sarcomatous change is sometimes developed. One hundred and twenty one patients were diagnosed as osteochondroma or osteochondromatosis from Jan. 1981 to Dec. 1991, and followed-up for 3.4 years(6months-8years). There were 74 cases of solitary osteochondroma(male : female=1.47 : 1), and 47 cases of osteochondromatosis (male : female=1.61:1). The age at initial visit was averaged 19.5 years(2 years 8 months-58 years). In our experience, common sites were distal femur, proximal tibia, proximal humerus in solitary osteochondroma, proximal tibia, distal femur, distal tibia in osteochondromatosis. Mass with or without pain was the most common chief complaint. Familial histories were noted in 38% of osteochondromatosis. The deformity, which needed correction, were found in 10 among 119 cases ; corrective osteotomy in 7 cases, lengthening with Ilizarov apparatus in 3 cases. The complications such as limitation of motion, sensory disturbance, recurrence, persistent deformity after corrective surgery, epiphyseal plate injury, superficial infection, were noted in 28%. During the follow-up period, there were one case of malignant transformation, and recurrence was identified in 7 cases and three of them were reoperated. Interestingly, progressive deformity was noted in 3 cases postoperatively. And, if the tumor produces no symptom and no functional impairment, we recommend minimizing the indication of surgical intervention. In particular, special attention must be taken in growing children in order to avoid inadvertent complications such as progressive deformity.
Child ; Congenital Abnormalities ; Femur ; Follow-Up Studies ; Growth Plate ; Humans ; Humerus ; Joints ; Metaphysics ; Osteochondroma ; Osteochondromatosis ; Osteotomy ; Recurrence ; Tibia

No abstract available.
Arthroplasty, Replacement, Knee*

Thirteen guinea pigs and 23 rabbits were challenged with 300 metacercariae of Clonorchis sinensis each and the recovery of adult worms and egg counts in feces were compared at 11-13 weeks post-infection in guinea pigs and at 7-9 weeks post-infection in rabbits. The recovery rate of adult worm was 23.5 percent in guinea pigs and 20.l-30.5 percent in rabbits. The mean E.P.G. of these animals in above period of infection was 106 in guinea pigs and 121 in rabbits. When one hundredth of E.P.G. was expressed as X and the number of adult worms as Y, the relationships between X and Y were as follows; Y=0.8X+10.8 in guinea pigs and Y=0.7X+6 in rabbits.
parasitology-helminth-trematoda ; Clonorchis sinensis ; guinea pig ; rabbit ; egg