http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
강경동,배용찬,남수봉,최수종,정도상,김창원,Kang, Kyung-Dong,Bae, Yong-Chan,Nam, Su-Bong,Choi, Soo-Jong,Jung, Do-Sang,Kim, Chang-Won 대한성형외과학회 2010 Archives of Plastic Surgery Vol.37 No.6
Purpose: It is difficult to provide accurate diagnosis and proper treatment for vascular anomalies, because vascular anomalies have a wide spectrum of lesion with various symptoms. Furthermore, vascular anomalies often require the services of a wide range of specialists. So, many patients have been discouraged by the lack of expertise and treatment options available to them. In this study, we aimed to describe the scope of the Vascular Malformation clinic (VAM clinic), a multidisciplinary clinic for hemangioma and vascular malformation patients and investigate of diagnostic accuracy of VAM clinic. Methods: 68 patients have included in a retrospective, medical record review study in the VAM clinic from may 2002 to august 2009. Data included the types of diagnoses of patients seen in the clinic, locations of lesions, comparison of accuracy of diagnoses at other clinic and initial diagnoses at VAM clinic and types of recommended treatments. Results: Initial diagnosis at VAM clinic showed 94.2% accuracy, while diagnosis at other clinic only showed 12.5% accuracy. Head and neck is most frequently occurred lesions in patients of VAM clinic. And VAM clinic is able to provide various and proper treatments to patients. Conclusion: Hemangiomas and vascular malformations can present with various medical problems. VAM clinic, the multidisciplinary clinic provided accurate diagnoses and proper treatments to patients.
파동형 Nd:YAG 레이저조사가 인체 치은조직에 미치는 영향
강경동,김천석,김형수,김현섭,김병옥,한경윤,Kang, Kyung-Dong,Kim, Chun-Suk,Kim, Hyung-Soo,Kim, Hyun-Seop,Kim, Byung-Ock,Han, Kyung-Yoon 대한치주과학회 1996 Journal of Periodontal & Implant Science Vol.26 No.4
The purpose of this study was to determine the effect of a pulsed Nd:YAG laser irradiation on human gingival tissues. The patients, who were planned to be treated by clinical crown lengthening procedure and gingivectomy, were selected. All the patients received oral hygiene instruction, scaling and root planing at preoperation. The crest of gingival tissue on upper and lower anterior teeth was irradiated by a pulsed Nd:YAG laser(El. EN. EN060, Italy) with a fiber optic of 300 m in contact mode for 20 seconds. Gingival tissues were divided into 4 groups according to the laser power of 1.0W(10Hz, 100mJ), 2.0W(20Hz, 100mJ), 3.0W(30Hz, 100mJ) and 4.0W(40Hz, 100mJ). Immediately after the laser irradiation, the specimens were excised, fixed 10% neutral formalin, sectioned $4-6{\mu}m$ thick, stained by Hematoxylin-Eosin and Periodic Acid Schiff stain and observed under light microscope. The removed tissue depth and the coagulated layer depth due to a laser irradiation by a laser irradiation were measured on the microphotographs. The difference of measurements according to the different laser power was statistical1y analyzed by Kruskal Wallis Test with SAS program. The results were as follows : 1. In histologic findings of irradiated gingival tissues; a. In the irradiated gingival specimen with 1.0W laser power, some vesicles were observed in limited superficial layer of gingival epithelium. b. In the irradiated gingival specimen with 2.0W and 3.0W laser power, the epithelium was almost removed except for the traces of viable basal cell remnants at ret peg, and coagulation necrosis related with the thermal effect of laser was noted. c. In the irradiated gingival specimen with 4.0W laser power, complete removal of epithelium, partial removal of underlying connective tissue, and the coagulation necrosis of subjacent gingival tissue were shown. 2. The removed tissue depth was deeper in the irradiated specimens with higher power. There was a statistical significance in the difference of removed tissue depth between 1.0W group ($44.54{\pm}6.99um$) and 3.0W group ($99.75{\pm}6.64{\mu}m$), and between 1.0W group($44.54{\pm}6.99{\mu}m$) and 4.0W group($111.36{\pm}4.50{\mu}m$), and between 2.0W group($98.01{\pm}4.53{\mu}m$) and 4.0W group($111.36{\pm}4.50{\mu}m$)(P<0.05). 3. The coagulated layer depth was deeper in the irradiated specimens with higher power. There was a statistical significance in the difference of coagulated layer depth between 1.0W group($31.82{\pm}8.99{\mu}m$) and 3.0W group($55.99{\pm}20.94{\mu}m$), and between 1.0W group($31.82{\pm}8.99{\mu}m$) and 4.0W group($83.68{\pm}10.34{\mu}m$)(P<0.05). From this study, the results demonstrated that the effects of a pulsed Nd:YAG laser irradiation on gingival tissues seemed to depend on the laser power and that the irradiation with high power could be harmful to adjacent healthy tissue.
성견에서 저강도파동형초음파가 초기고정이 없는 임플란트의 골융합에 미치는 효과
강경동 ( Kyung Dong Kang ),김소영 ( So Young Kim ),임성철 ( Sung Chul Lim ),김병옥 ( Byung Ock Kim ) 한국조직공학과 재생의학회 2010 조직공학과 재생의학 Vol.7 No.2
The aim of this study was to evaluate the effects of low intensity pulsed ultrasound (LIPUS) on the osseointegration of implants without initial stability in a canine model using a histologic, histomorphometric method (bone-implant contact, BIC) and a mobility test (PTVs). Six, male mongrel dogs (17-19 kg) were included in this study. Four months after extraction, a total of 36 implants were placed bilaterally into the lower mandible. Holes, 3.5 mm in diameter, were drilled into the mandibular bone, and implants with a resorbable blasting media surface, 3.3 mm in diameter and 8.5 mm in length, were placed into the holes. The implants placed into the holes were covered with resorbable membrane. The left side of each dog received LIPUS application (15 minutes/day for 7 days), while the right side as a control received no treatment. The output of LIPUS was 3.0 MHz and 240 mW/cm2. Two dogs were sacrificed at 2-, 4- and 8-weeks. PTVs showed statistically significant differences in both groups over healing periods. The histomorphometric analysis showed that the BIC % in both groups tended to be increased as the healing time passed. And at 4-weeks, new bone was formed and in direct contact with the implant surface. Mature bone was present after 8-weeks, irrespective of LIPUS treatment. This study suggested that LIPUS may have a positive effect on osseointegration and stability of dental implants, especially in early healing periods.
안와하벽 파열 골절에 대한 내시경적 접근법만을 이용한 재건술
배성환,강경동,남수봉,배용찬,최수종,Bae, Seong Hwan,Kang, Kyung Dong,Nam, Su Bong,Bae, Yong Chan,Choi, Soo Jong 대한두개안면성형외과학회 2012 Archives of Craniofacial Surgery Vol.13 No.2
Purpose: Many surgical methods for reconstruction of orbital floor fracture have been reported, which include subciliary approach, transconjunctival approach, transantral and transnasal endoscopic approach, etc. The purpose of this study is to demonstrate a surgical technique and analyze the results of transnasal endoscopic approach with Foley catheter ballooning without implantation of artificial surgical material through subciliary approach. Methods: Between February 2007 and November 2010, 29 orbital floor fracture patients, who had no herniated muscles through bone fragments, were treated through transnasal endoscopic approach with Foley catheter ballooning. Under the endoscopic view, the operator identified the opening of maxillary sinus. After widening of the opening using forceps, the operator reduced the fragmented bone with curved suction tip. Thereafter, 18-Fr Foley catheter was inserted. Four weeks after the operation, the catheter was removed. Results: Preoperatively, 6 patients had diplopias, 4 patients had limitations of extraocular motions and 3 patients had enophthalmos. After removal of the Foley catheter 4 weeks after the operation, 2 patients had diplopias, 1 patient had a limitation of extraocular motion, 1 patient has an enophthalmos and 1 patient had numbness on the cheek. These symptoms were resolved about 6 months after the surgery. Conclusion: The operative technique of Foley catheter ballooning through transnasal endoscopic approach without implantation of the artificial surgical material through subciliary approach can be considered one of the appropriate techniques for orbital floor fracture.