PURPOSE: The purpose of this study was aimed to compare the shear bond strength on dentin of three dentin bonding agents and two resin cements used in conjunction with self-cured composite resin core material. MATERIAL AND METHOD: Control group and six experimental groups were divided for this study. Control group was designated as specimens bonded with Tenure A & B(R). Experimental groups were as follows: PB-BL group : specimens bonded with PrimeandBond NT(R), BondLink(R). SB-BL group : specimens bonded with SingleBond(R), BondLink(R). PB group : specimens bonded with PrimeandBond NT(R) SB group : specimens bonded with SingleBond(R). PF group : specimens bonded with Panavia-F(R). BI group : specimens bonded with Bistite II(R). All specimens were stored in 37degrees C distilled water for 24 hours, followed by the shear bond strength was tested by universal testing machine. The data was analysed statistically by Mann-Whitney test. RESULTS: 1. For PrimeandBond NT(R) and SingleBond(R), the shear bond strength was 0.24 MPa and 7.19 MPa each by each, while Tenure A & B(R) group control was measured at 13.93 MPa (p<0.05). Especially for PrimeandBond NT(R), it did not get conjunction with dentin. 2. For PrimeandBond NT(R) and SingleBond(R) using BondLink(R), there was no significant difference as a result of 11.73 MPa and 14.00 MPa each by each (p<0.05). 3. For Panavia-F(R) and Bistite II(R), they showed the highest shear bond strength as measured by 18.24 MPa and 16.09 MPa each(p<0.05).
Dentin* ; Dentin-Bonding Agents* ; Resin Cements* ; Shear Strength ; Water

Streptococcus anginosus is a member of Streptococcus milleri group, and is found in the oral mucosa, respiratory tract, and gastrointestinal tract as normal flora. It can develop into a disease in patients with deteriorating clinical condition or with clinical risk factors. A previously healthy 15-year-old boy was admitted due to fever, abdominal discomfort and vomiting which lasted for 7 days. He had a history of dental procedure 1 day before the development of fever. He was diagnosed with acute acalculous cholecystitis based on the clinical, laboratory, and imaging finding, and S. anginosus was isolated from the blood culture. The patient was successfully treated with antibiotic therapy.
Acalculous Cholecystitis ; Adolescent ; Bacteremia ; Cholecystitis ; Fever ; Gastrointestinal Tract ; Humans ; Mouth Mucosa ; Respiratory System ; Risk Factors ; Streptococcus ; Streptococcus anginosus ; Streptococcus milleri Group ; Vomiting

No abstract available.
Priapism*

No abstract available.
Priapism*

No abstract available.

Ameloblastic fibrosarcoma is an extremely rare variety of odontogenic tumor. It has not previously been reported in Korea. The tumor is composed of benign odontogenic epithelium with a mesenchymal part which exhibits the histologic features of fibrosarcoma. We have reported a case of amloblastic fibrosarcoma of the mandible in a 26-year-old man with swelling of right mandible for 2 weeks. The tumor showed yellowish ill-demarcated ulcerating mass involving right premolar and molar area. Light microscopy revealed irregularly arranged strands and islands of odontogenic epithelium surrounded by abundant mesenchymal tissue with the feature of fibrosarcoma. The fibrosarcoma cells were strong positive on immunostain for vimentin and ameloblastic cells were weakly positive for cytokeratin. S-100 and CEA were negative in both epithelial and sarcoma cells. The sarcoma cells were corresponding to fibroblasts on the electron microscopy with abundancy of RER and mitochondria and covering of basal lamina. Two types of virus like particles were distributed in the cytoplasm and nuclei of sarcoma cells. We treated the patient with surgery and chemotherapy. The recovery was uneventful and the prognosis is under observation.
Male ; Humans

No abstract available.
Animals ; Peripheral Nerve Injuries* ; Peripheral Nerves* ; Rats* ; Sciatic Nerve*

Objective: Establishing positive network resources and rebuilding drug free networks are key components of recovery process for women with substance use disorder (SUDs). Theory of planned behavior (TPB) posits that behaviors are determined by behavioral intentions, which are determined by three factors: attitude toward the behavior, perceived behavioral control, and subjective norms. The current study applied TPB to examine whether women’s personal social network characteristics (as subjective norms) were related to intentions towards, and/or a substance use relapse using prospective research design. Methods: Longitudinal data from 300 American women with SUD who received treatment at three county-funded, women-only intensive treatment programs was utilized for the current study. Results: Bayesian estimation path analyses indicated that attitude and abstinence self-efficacy at intake were not related to intention at the 6-month follow-up, but abstinence self-efficacy was directly related to substance use relapse by 12 months. Personal social network characteristics, number of treatment related persons in personal social network and sobriety support were significantly associated with intention at 6 months. The interaction between the numbers of treatment related persons and density was found on intention, suggesting that density strengthens the relationship between treatment related persons in network and intention. Intention to use substance was associated with relapse to substance use behavior. Conclusion Our findings support that personal social network characteristics can be considered as subjective norms in the TPB model. Personal social network interventions focusing on rebuilding consistent social norms against drug-using behaviors may decrease intention to use substance, which will lead to abstinence.

PURPOSE: To report a case of a macular hole resulting from accidental exposure to tattoo removal by the Q-Switched Nd:YAG laser, which was treated successfully by vitrectomy and silicone oil infusion. CASE SUMMARY: A 33-year-old man presented with decreased visual acuity after accidental exposure to a Q-Switched Nd:YAG laser. According to fundus examination, vitreous hemorrhage and macular edema were observed. After 21 days, a macular hole had developed which was treated by standard pars plana vitrectomy and gas tamponade. Unfortunately, closure was not obtained on the first attempt. Therefore, a second attempt using silicone oil infusion was performed. Four months after the initial visit, BCVA had increased to 20/50, and anatomical occlusion was achieved. CONCLUSIONS: The authors of the present study experienced an unusual case of macular hole developed from the Q-Switched Nd:YAG laser used to remove a tattoo. A satisfactory visual acuity was achieved after silicone oil infusion despite failure in the first surgery.
Adult ; Humans ; Macular Edema ; Retinal Perforations ; Silicone Oils ; Visual Acuity ; Vitrectomy ; Vitreous Hemorrhage

PURPOSE: To report the first domestic case of choroidal neovascularization in a choroideremia patient treated with intravitreal bevacizumab injection. CASE SUMMARY: A 29-year-old male presented with a sudden decline in vision in the left eye. Fundus examination revealed areas of choriocapillaries and retinal pigment epithelium atrophy with macular hemorrhage. Fluorescein angiogram revealed vascular hyperfluorescence in the juxtafoveal area. Neurosensory detachment around the macula and increased central macular thickness was also observed using optical coherence tomography. Upon the diagnosis of choroideremia with choroidal neovascularization, the patient was treated with 1.25 mg intravitreal bevacizumab. Visual acuity improved after four injections of intravitreal Bevacizumab with improvement in both detachment and fluorescein leakage. CONCLUSIONS: In patients with choroideremia presenting sudden decline in vision, ophthalmologists should detect for possible choroidal neovascularization. The results from the present study show that judicious use of intravitreal Bevacizumab may be effective in such cases. Further studies with a large sample size and sufficiently long follow-up periods are required.
Adult ; Antibodies, Monoclonal, Humanized ; Atrophy ; Choroid ; Choroidal Neovascularization ; Choroideremia ; Eye ; Fluorescein ; Follow-Up Studies ; Hemorrhage ; Humans ; Male ; Retinal Pigment Epithelium ; Sample Size ; Tomography, Optical Coherence ; Vision, Ocular ; Visual Acuity ; Bevacizumab