Relining and rebasing are essential for long-term success and oral health in removable prosthodontics. Major features of failures between metal base and relining resins are adhesive failure due to lack of chemical bonding. The purpose of this study was to find a better metal primer and metal surface treatment method that enhance the bonding strength with relining resin materials. The surfaces of ticonium alloys were treated with 25micrometer sandblasting (Group A), stone wheel (Group B), stone wheel and EZ oxisor (Group C), 75micrometer sandblasting (Group D) and EZ oxisor application after 75micrometer sandblasting (Group E). They were subdivided into no primer application (Group I), MR bond application (Group II) and Metafast bonding liner (Group III). Then specimens were completed though being bonded with relining resins. The specimens were stored in 38degrees C water for 48 hours and tensile strength was measured using the universal testing machine. The results were as follows, 1. Primer application groups showed higher bond strength than no primer application group(p<0.05). 2. In comparison with primer application groups, MR bond group showed higher bond strength than Meta fast bonding liner application group(p<0.05). 3. In comparison with surface treatment methods. Bond strengths of group A and B were significantly different with group C, D, and E, and group C were significantly different with group D, and E in no primer application group(p<0.05). In primer application groups, group A, B, C were significantly different with group D and E(p<0.05). According to results of this study, Metal primer application and metal surface roughening were considered to be advantageous for relining of metal base dentures.
Adhesives ; Alloys ; Denture Bases* ; Dentures* ; Oral Health ; Prosthodontics ; Tensile Strength* ; Water

The color change of maxillofacial silicone has been attributed to certain environmental factors such as exposure to the UV component of natural sunlight, wetting and drying of the elastomer, and surface abrasion resulting from the application and removal of cosmetics. The purpose of this study was to evaluate the color change of maxillofacial silicone (Silastic MDX4-4210) according to type of pigment (cadmium yellow, titanium white, cosmetic red), and UV absorber application method after 200, 400, and 600 hours of 350nm UV light irradiation. The results were as follows. 1. According to type of pigments, after 200 hours cosmetic red showed significantly larger color change than cadmium yellow and titanium white, and after 400 and 600 hours color change significantly decreased in the order of cosmetic red, cadmium yellow, and titanium white (p<0.05). 2. In the cadmium yellow group, after 200 hours, the non-treatment group showed significantly larger color change, but after 400 and 600hours, color change significantly decreased in the order of non-treatment, surface application and mixed group (p<0.05). 3. In the titanium white group, there was no significant color change difference between the three groups after 200 and 400 hours, but after 600 hours, the mixed group showed significantly smaller color change than the non-treatment and surface application groups (p<0.05). 4. In the cosmetic red group, there was significant decrease in color change in the order non-treatment, surface application and mixed group (p<0.05). From the results above, the effect of UV light absorber differed according to the type of pigment, but mixing UV light aborber with maxillofacial silicone is thought to give superior resistance against UV light irradiation in the long run.
Cadmium ; Elastomers ; Silicones* ; Sunlight ; Titanium ; Ultraviolet Rays*

The Melkersson-Rosenthal syndrome consists of the associated of indings of facial nerve paralysis, facial swelling and scrotal tongue. We report a case of MRS where a 20 year old female had diffuse swelling on her face and lips for 10 years. This was also accompaiined with difficulty of facial expression and fissured tongue. The improved with intralesional injection: of triamcinolon acetonide 40mg for 3 consecutive weeks and 2 every other week.
Facial Expression ; Facial Nerve ; Facial Paralysis ; Female ; Humans ; Injections, Intralesional ; Lip ; Melkersson-Rosenthal Syndrome ; Tongue, Fissured ; Young Adult

In terms of treating diseases, minimally invasive treatment has become a key element in reducing perioperative complications. Among the various minimally invasive treatments, cryotherapy is often used in urology to treat various types of cancers, especially prostate cancer and renal cancer. In prostate cancer, the increased incidence of low-risk, localized prostate cancer has made minimally invasive treatment modalities an attractive option. Focal cryotherapy for localized unilateral disease offers the added benefit of minimal morbidities. In renal cancer, owing to the increasing utilization of cross-sectional imaging, nearly 70% of newly detected renal masses are stage T1a, making them more susceptible to minimally invasive nephron-sparing therapies including laparoscopic and robotic partial nephrectomy and ablative therapies. This article reviews the various outcomes of cryotherapy compared with other treatments and the possible uses of cryotherapy in surgery.
Cryosurgery/adverse effects/*methods ; Humans ; Kidney Neoplasms/*surgery ; Male ; Minimally Invasive Surgical Procedures/adverse effects/methods ; Prostatic Neoplasms/*surgery ; Salvage Therapy/methods ; Treatment Outcome

No abstract available.
Hyperplasia

S-100 protein is a mixture of three proteins, that is, S-100 ao(aa), S-100 a(ab) and, S- 100 b(bb). Twenty-two case, of sweat gland tumors were stained with immunoperoxidase technique (ABC method) for the presence of S-100a and b-subunit. Four syringomas, four eccrine poromas, two eccrine porocarcinomas, two ecerine spirdeiomas, one papillary eccrine adenoma, three clear cell hidradenomas, three mixed tumr rs of the skin, two papillary syringocystadenomas, and one cylindroma were included. All specimens were formalin-fixed and paraffin-embedded. The results were as follows : 1) The staining patterns of anti-S-100a and b-protein antibodies we e simillar to those of anti-S-100 protein antibody except in eccrine poroma and porocare nomal. 2) In eccrine poroma and porocarcinoma, scattered S-100-positive dendritic cells within tumor cell nests were stained by S-100-protein antibody (3/6), but not by anti-S-100a protein antibody. S-100p is present in normal Langerhans cells. Therefore this finding suggests that these cells niay be Langerhans cells
Acrospiroma ; Adenoma ; Antibodies ; Antibodies, Monoclonal* ; Carcinoma, Adenoid Cystic ; Dendritic Cells ; Eccrine Porocarcinoma ; Immunoenzyme Techniques ; Langerhans Cells ; Poroma ; S100 Proteins ; Skin ; Sweat Glands* ; Sweat* ; Syringoma

There was an error in article.

No abstract available.
Bone Density* ; Female ; Humans ; Hypogonadism*

No abstract available.
Amenorrhea* ; Female

STATEMENT OF PROBLEM: Bioactive materials must have the ability to spontaneously form a bone like apatite layer on their surface and induce direct biochemical bonding to bone. A simple chemical treatment via alkali and heat has been revealed to induce bioactivity in titanium. PURPOSE: The purpose of this study was to evaluate the surface characteristics and stability of alkali and heat treated implants. MATERIAL AND METHODS: Specimens were divided into three groups; group 1 was the control group with machined surface implants, groups 2 and 3 were treated with alkali solutions and heat treated in the atmosphere and vacuum conditions respectively. The surface characteristics were observed with FESEM, XPS, TF-XRD and AFM. Stability was evaluated with the resonance frequency analysis, periotest and removal torque values. One-way ANOVA and Duncan test were used for statistical analysis. RESULTS: 1. Groups treated with alkali and heat showed similar characteristics. Groups 2 and 3 showed high compositions of Na ions on the surface with sub-micron sized pores compared to group 1. Group 2 showed mixed compositions of anatase and rutile with superior contents of rutile. 2. Resonance frequency analysis : The ISQ of group 2 showed significantly higher values than that of groups 1 and 3 at 12 weeks. The ISQ of groups 1 and 2 showed significant increase after 4 weeks, and the ISQ of group 3 increased significantly after 2 and 4 weeks respectively (P < .05). 3. Periotest: The PTV of groups 1 and 2 showed significant decrease after 4 weeks, and the PTV of group 3 showed significant decrease after 2 and 4 weeks respectively (P < .05). 4. Removal torque analysis: The removal torque value of group 2 was significantly higher than those of groups 1 and 3 at 2, 4 and 8 weeks. The removal torque values of groups 1 and 3 showed increase at 4 and 12 weeks, but the removal torque value of group 2 showed increase after 4 weeks (P < .05). CONCLUSION: An oxide layer with appropriate crystal structure and amorphous sodium titanate layer can be obtained on titanium implants through alkali and heat treatment in the atmosphere, and even alkali and heat treatment in vacuum conditions, provided a bioactive surface containing sodium. These surface layers can be considered to be effective for enhancement of osseointegration and reduction of healing period for implant treatment.
Alkalies ; Atmosphere ; Hot Temperature ; Ions ; Osseointegration ; Oxides ; Saturn ; Sodium ; Titanium ; Torque ; Vacuum