Dental caries is the first disease to cause the pathological extraction of teeth in children. The complete prevention of dental caries is not achieved by toothbrushing alone. The use of fluoride and pit and fissure sealant is regarded as key tools to prevent dental caries. Fluoride-containing tablets or multi-vitamins and community water fluoridation can be used as systemic application techniques. Professional fluoride application, fluoride iontophoresis on teeth, fluoride mouth rinsing and fluoridecontaining toothpaste can be used as local application techniques. Pit and fissure sealant is mainly used to prevent dental caries on occlusal surfaces of premolars and molars. Sweeteners not to occur dental caries has been developed to substitute sucrose. Dental erosion increases according to the high consumption of acidic soft drink or beverages. The appropriate use of fluoride and pit and fissure sealant are recommended to prevent dental caries effectively and the education is required to reduce the consumption of acidic soft drinks or beverages to decrease dental erosion.
Beverages ; Bicuspid ; Carbonated Beverages ; Child ; Dental Caries ; Fluoridation ; Fluorides ; Humans ; Iontophoresis ; Molar ; Mouth ; Preventive Dentistry ; Sucrose ; Sweetening Agents ; Tablets ; Tooth ; Toothbrushing ; Toothpastes

No abstract available.
Oral Health*

In the normal disc tissue, the blood vessles have not been observed. It has been suggested that the vascular ingrowth promotes the granulation tissue formation in the herniated disc tissue. The origin of capillaries observed in the herniated disc tissue has remained unclear, but basic fibroblast growth factor(bFGF) may be the important inducer of capillary ingrowth. The purpose of this study is to evaluate the neovascularization in the intervertebral disc without rupture of annulus fibrosus, not being exposed to epidural fat. The disc tissues including nucleus pulposus and annulus fibrosus were obtained at anterior interbody fusion from 30 patients with back pain. All specimens were immediately frozen and stored at -70degrees C. Hematoxylin-eosin stain, polyclonal von Willebrand factor(FVIII) antibody, smooth muscle actin antibody and anti-human endothelial cell antibody(CD31) were used to confirm the blood vessel. Polyclonal bFGF antibody expression was evaluated in the disc tiussues. All of the blood vesseles were observed in the inner portion of annulus fibrosus and the transitional zone. The blood vesseles were observed in 96.7% with hematoxylin-eosin stain, 83.3% with smooth muscle actin antiboy stain, 90% with FVIII, 86.7% with CD31 and the immunopositive blood vesseles were observed in 83.3% with bFGF immunostain. The neovascularization of disc was frequently found in the annulus fibrosus and the transitional zone. The neovasuarlization of intervertebral disc was present in the intervertebral disc without rupture of annulus fibrosus.
Actins ; Back Pain* ; Blood Vessels ; Capillaries ; Endothelial Cells ; Fibroblast Growth Factor 2* ; Fibroblasts ; Granulation Tissue ; Humans ; Intervertebral Disc Displacement ; Intervertebral Disc* ; Muscle, Smooth ; Rupture

PURPOSE: The purpose of this study was to evaluate the clinical outcome of neglected Achilles tendon rupture treated with reconstruction and augmentation with flexor hallucis longus (FHL) tendon using one incision technique. MATERIALS AND METHODS:Between July 2006 and March 2008, eleven patients with neglected Achilles tendon rupture received surgical treatment. Through one incision technique, augmentation with auto FHL tendon transfer was performed using a Bio-Interference screw (Arthrex, Naples, FL) and followed by V-Y advancement (5 cases) or gastronemius fascial turn-down flap procedure (6 cases). After mean follow up of 20.7 months (range, 11.8-33.3 weeks), clinical outcomes were evaluated with Visual Analogue Scale (VAS), American Orthopedic Foot and Ankle Society (AOFAS) score, 10 repetitive double heel raise test, 10 repetitive single heel raise test and subjective satisfaction. RESULTS:The length of the gap after debridement was 5.4+/-2.0 cm. The VAS improved from 4.1+/-0.9 to 1.5+/-0.8 at last follow up (p<0.05). The AOFAS score increased from 38.9+/-12.2 to 91.5+/-8.9 at last follow up (p<0.05). Eight patients were satisfied with excellent results and three were satisfied with good results. All patients were able to perform 10 repetitive double heel raise and nine out of eleven patients were able to perform 10 repetitive single heel raise at last follow up. There were no complications including deep infection or re-rupture. CONCLUSION: Augmentation with FHL tendon transfer and reconstruction with V-Y advancement or turn-down flap through one incision technique appeared to be effective and safe. This technique is recommendable for the treatment of neglected Achilles tendon rupture.
Achilles Tendon ; Animals ; Ankle ; Debridement ; Follow-Up Studies ; Foot ; Heel ; Humans ; Orthopedics ; Rupture ; Tendon Transfer ; Tendons

BACKGROUND: Propofol is a good induction agent, but it has the disadvantage of causing pain on intravenous injection. The incidence of propofol-induced pain is approximately 70%. Palonosetron is a novel second-generation 5-hydroxytryptamine type 3 (5-HT3) receptor antagonist. We presumed that palonosetron would be effective in reducing the occurrence of propofol-induced pain based on similar mechanisms to other 5-HT3 receptor antagonists. METHODS: Eighty patients were randomized to either Group N (0.9% sodium chloride [normal saline] 2 ml, n = 40) or Group P (palonosetron 0.075 mg, 2 ml, n = 40). Patients were intravenously given a 2 ml pretreatment solution, containing either palonosetron 0.075 mg or normal saline. Following pretreatment with 2 ml of palonosetron 0.075 mg or normal saline, we manually occluded venous drainage midarm with the help of an assistant. One minute later, we released the occlusion of venous drainage. This was followed by a 5-second propofol injection at 25% of the total calculated doses. Patients were then interviewed about whether or not they experienced propofol-induced pain. RESULTS: Overall, the incidence of propofol-induced pain was 60% in the normal saline group and 27.5% in the palonosetron group. No patients in the palonosetron group experienced severe pain. The incidence of propofol-induced pain was significantly lower in the palonosetron group compared to the normal saline group (P < 0.01). CONCLUSIONS: Following pretreatment with palonosetron, 72.5% of patients experienced a decrease in the occurrence of propofol-induced pain.
Drainage ; Humans ; Incidence ; Injections, Intravenous ; Propofol* ; Receptors, Serotonin, 5-HT3 ; Serotonin ; Sodium Chloride

We introduce a new silicone implanting method to correct facial depression caused by trauma or congenital anomaly. It resulted in good facial aesthetics in patients with facial depression. From August 1997 to January 1999, 5 patient (3 males and 2 females), in ages from 19 to 34 years, underwent silicone implantation for facial depression using our method. Three males were injured by traffic accident and had facial depression with or without bone defect. Two females had congenital forhead depression and requested aesthetic contouring. An impression of the face was taken with alginate backed with quick setting plaster. When set, a further stone plaster model was taken from the alginate-plaster, which was removed after fixation. Wax was then carved into the patient's stone model to fill the depression. Another stone cover was taken to cover this was-stone model. Then wax was melted away and medical implant grade room temperature vulcanized silicone adhesive was squeezed into the empty space. After cured, this precisely-shaped silicone imlant was inserted into the patient. We did not experience major complicaion such as infection, implant extrusion during 4 to 18 months' follow-up periods. All patients were satisfied with the results. The clinical result of this technique would be useful for accurate and excellent aesthetic implantation.
Accidents, Traffic ; Adhesives ; Depression* ; Esthetics ; Female ; Follow-Up Studies ; Humans ; Male ; Silicones*

The use of a tissue expander and implant is the simplest option for breast reconstruction after mastectomy. Use of a round dome-shaped prosthesis and the commonly used one-stage technique with a Becker type prosthesis, however, often produces an undesirable upper pole fullness. To overcome this and to achieve improved aesthetic results, we started using an anatomically-shaped expander and implant, as described by Maxwell, as a two-stage breast reconstruction. We reviewed the results of our 21 reconstructed breasts in 22 patients who were deemed suitable for reconstruction using this technique since January 1995. The most commonly used expander was 350cc (range 350-550cc) and an average of 4.2 inflations were required before replacing the expander with a permanent implant. All the expanders were placed in submuscular pockets and implant volume. The longest follow-up was 36 months. Few complications developed and most patients were satisfied with the results. We found that the anatomically-shaped expander and implant produced better aesthetic results compared to a done-shaped prosthesis.
Breast* ; Female ; Follow-Up Studies ; Humans ; Mammaplasty* ; Mastectomy ; Prostheses and Implants ; Tissue Expansion Devices

OBJECTIVES: The aim of this study was to analyze the association between energy sources, fiber and mineral intake, and the number of existing permanent teeth in adults aged 55-84 years from the 5th Korea National Health and Nutrition Examination Survey (KNHNES) (2010-2012). METHODS: The subjects included 6,763 people who received oral examinations and answered questions on household income, smoking status and diet. We estimated the number of existing permanent teeth and food intake according to age group, sex, household income, and smoking status. A complex samples general linear model was applied to analyze the effect of nutrient intake on the number of existing permanent teeth adjusted for sex, household income, smoking status, and food intake. We calculated the mean intake of nutrients related to the number of existing permanent teeth in each tooth group. RESULTS: The reduction in the number of existing permanent teeth correlated with an increased carbohydrate intake and a decreased potassium intake. The carbohydrate intake was lower in subjects with 25 or more teeth than that in subjects with 9 or less teeth. Potassium intake was higher in subjects with 20 or more teeth. CONCLUSIONS: The number of existing permanent teeth showed a negative correlation with carbohydrate intake and a positive correlation with potassium intake. We should reduce carbohydrate intake and increased potassium intake from fruits and vegetables to prevent systemic disease caused by tooth loss.
Adult* ; Diagnosis, Oral ; Diet ; Eating ; Family Characteristics ; Fruit ; Humans ; Korea ; Linear Models ; Miners ; Nutrition Surveys ; Potassium ; Smoke ; Smoking ; Tooth Loss ; Tooth* ; Vegetables

To increase the survival area of the venous flap, we studied the arterialized venous flap in a rabbit ear model. The ears of 12 New Zealand white rabbits(n=24) were randomized into three groups, group A receiving arterio-venous anastomosis 14 days before the arterialized venous flap elevation; group B receiving bipedicled flap elevation 14 days before arterialized venous flap elevation; group C receiving no pretreatment before the arterialized venous flap elevation. Tc -pertechnetate scan was performed on all groups immediately after the arterialized venous flap elevation to evaluate the blood flow of the flap. The survival area of the flap was measured 14 days after the arterialized venous flap elevation. Average ratio of survival area was 92% in Group A, 88% in group B, which were comparatively higher than the 12% in group C. The entire flap was visualized in groups A and B on scan images, however, only the proximal area of the anterior and posterior marginal vein was visualized in group C. Flap survival pattern was similar to that of the scan image and the slope of time-activity curve of groups A and B was much steeper than that of group C. High survival rate of group A, which received the arterio-venous anastomosis as a pretreatment, may be due to the decrease of resistance of outflow during the 14 days. Anticipated mechanisms involved are, valve insufficiency due to high pressure arterial inflow, development of vascular collaterals in the flap, and opening of arteriovenous(A-V) shunt. Bipedicled flap elevation as a pretreatment may not effect on valves, however, may impair the sympathetic nerve and cause ischmic stimuli which in turn may develop vascular collaterals and make an opening of the A-V shunt.
Ear ; New Zealand ; Survival Rate ; Veins

OBJECTIVES: The purpose of this study was to compare the amount and rate of cumulative fluoride released over a period of 4 h from several varnishes marketed in Korea. METHODS: The following six commercial products were studied: cavity shield (CS, 22,600 ppm F), V varnish (VV, 22,600 ppm F), enamel pro varnish (EP, 22,600 ppm F), MI varnish (MI, 22600 ppm F), fluorine care (FC, 22600 ppm F), and fluor protector N (FP, 7700 ppm F). Five samples were collected from each varnish. Further, 10 mg of each varnish were applied onto an acrylic surface (diameter, 5 mm) and then immersed in 20 mL of distilled water at 37degrees C. The fluoride concentration in each sample was then analyzed after 30 min, 1, 2, 3, and 4 h, and after 4 days of exposure. RESULTS: The cumulative amount of fluoride released by FC (5.64+/-1.10 ppm) was significantly higher than that released by other products after 30 min. FC (8.55+/-1.85 ppm) and MI (8.21+/-0.81 ppm) released a significantly higher cumulative amount of fluoride after 4 h. The cumulative rate of fluoride released by FC (47.80+/-9.35%) was significantly higher than that of other products after 30 min. FC (72.44+/-15.68%) and MI (69.54+/-6.88%) showed a higher cumulative fluoride release rate after 4 h. MI sustainably released fluoride after 4 h and demonstrated a high fluoride release rate of 95.76%. CONCLUSIONS: The cumulative amount and rate of fluoride released by several varnishes were statistically significant at each time point. This data can be used by clinicians prior to selection of dental products.
Dental Enamel ; Fluorides* ; Fluorine ; Korea ; Paint* ; Water