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첩포시험을 이용한 구강점막질환 환자의 접촉성 과민반응에 대한 평가
민숙진,안형준,박준상,고명연 대한안면통증∙구강내과학회 2002 Journal of Oral Medicine and Pain Vol.27 No.2
The possibility of contact hypersensitivity among etiologies of oral mucosal diseases was studied. Epicutaneous patch test was performed in 34 patients with oral lichen planus(OLP), 28 patients with burning mouth syndrome(BMS), 29 patients with recurrent aphthous ulceration(RAU) and 40 subjects without oral mucosal diseases. The aim of present study was to investigate the frequency of positive patch test reaction to dental materials in 131 subjects and to find dental materials showing high frequency of positive patch test reaction. The obtained results were as follows : 1. The number of lesions in contact with restorations was significantly larger in OLP, BMS group than RAU group(p<0.01). 2. The number of patients showing positive patch test reactions was significantly larger in OLP, BMS, RAU group than control group(p<0.05). But, there were no significances among three patient groups(p<0.05). 3. Dental materials causing positive reaction to patch test were mainly as follows : cobalt chloride(32%), potassium dichromate (25%), nickel sulfate(22%), goldsodiumthiosulfate(21%) and mercury(10%) in three patient groups, cobalt chloride(15%) and mercury(7.5%) in control group. 4. The frequency of the positive reaction to potassium dichromate and goldsodiumthiosulfate was significantly higher in three patient groups than control group(p<0.05). The frequency of the positive reaction to nickel sulfate was significantly higher in BMS group than OLP, RAU and control group (p<0.05). 5. In OLP group, the group of negative patch test reaction showed significantly more favorable response to routine treatment than group of positive patch test reaction(p<0.05).
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민숙진,박준상,고명연,Min, Suk-Jin,Park, June-Sang,Ko, Myung-Yun 대한안면통증구강내과학회 2001 Journal of Oral Medicine and Pain Vol.26 No.2
Mucous membrane pemphigoid is uncommom disease in oral cavity and synonymous with cicatricial pemphigoid. This disease is caused by autoimmune reaction that autoantibody reacts antigen located in basement membrane and epithelium is separated from underlying connective tissue. It affects female over sixth decade, commonly. Oral mucosa, especially gingiva is common site but conjunctival, nasal, pharyngeal, laryngeal, esophageal, varginal mucosa and skin are involved. Intraoral findings show Nikolsky sign, irregular erythema, erosion, vesicle, and ulceration at mucous membrane. To differentiate from diseases of positive Nikolsky sign, should perform histologic, immunologic test. Histologic features show subbasilar cleft and direct immunologic features show IgG, C3 deposits at basement membrane in linear pattern. Mucous membrane pemphigoid is incurable disease because symptoms are repetitively improved or worsed for several years. Patiens are commonly managed with topical and systemic steroid. To avoid side effects of prolonged steroid therapy and to maintain immunosupressive effects, combination therapy of azathioprine with steroid is effective. This case reports that mucous membrane pemphigoid is diagnosed based on clinical and histologic features, is treated with topical, systemic steroid and azathioprine therapy.
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Micro-tensile Bond Strength of Composite Resin Bonded to Er:YAG Laser-prepared Dentin
민숙진,안용우,고명연,박준상,Min, Suk-Jin,Ahn, Yong-Woo,Ko, Myung-Yun,Park, June-Sang Korean Academy of Orofacial Pain and Oral Medicine 2006 Journal of Oral Medicine and Pain Vol.31 No.3
Purpose The aims of this study were to evaluate micro-tensile bond strength of composite resin bonded to dentin following high-speed rotary handpiece preparation or Er:YAG laser preparation with two different adhesive systems and to assess the influence of different Er:YAG laser energies on the micro-tensile bond strength. Materials and Methods In this study, 40 third morlars were used. Flat dentin specimans were obtained and randomly assigned to eight groups. Dentin surfaces were prepared with one of four cutting types: carbide bur, Er:YAG laser (2 W, 3 W and 4 W) and conditioned with two bonding systems, Scotchbond Multipurpose Plus (SM), Clearfil SE bond (SE) and composite resin-build ups were created. After storage for 24 hours, each specimen was serially sectioned perpendicular to the bonded surface to produce more than thirty slabs in each group. Micro-tensile bond strength test was performed at a crosshead speed of 1.0 mm/min. Micro-tensile bond strengths (${\mu}TBS$) were expressed as means$\pm$SD. Data were submitted to statistical analysis using two-way ANOVA, one-way ANOVA, Student-Newman-Keuls' multiple comparison test and t-test. Results and Conclusion 1. Regardless of bonding systems, the ${\mu}TBS$ according to cutting types were from highest to lowest : 3 W, 2 W, Bur, and 4 W. In addition, there was no significant difference between Bur and 4 W (p<0.001). 2. Regardless of cutting types, SM showed significantly higher ${\mu}TBS$ than SE (p<0.001). 3. Bonding to dentin conditioned with SM resulted in higher ${\mu}TBS$ for 3 W compared to Bur, 2 W, and 4 W. There was no significant difference between 2 W and Bur (p<0.001). 4. Bonding to dentin conditioned with SE resulted in higher ${\mu}TBS$ for 3 W compared to 2 W, 4 W, and Bur. Bur exhibited significant lower ${\mu}TBS$ than all other cutting types. There were no significant differences between 3 W, 2 W and between 4 W and Bur (p<0.001). 5. The ${\mu}TBS$ of laser cutting groups were shown in order from highest to lowest: 3 W, 2 W and 4 W in two bonding systems. There was no significant difference between 2 W and 3 W in SE (p<0.001). : The ${\mu}TBS$ of composite resin bonded dentin was significantly affected by interaction between the cutting type and bonding system. In the range of 2 W-3 W, cavity preparation of the Er:YAG laser seems to supply good adhesion of composite resin restoration no less than bur preparation. In particular, if you want to use the self-etching system, including Clearfil SE bond for the purpose of a simplification of the bonding procedures and prevention of adverse effects by excessive etching, an Er:YAG laser may offer better adhesion than a bur.
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