Y needle을 이용한 간단한 이중검 수술

양병은(Byoung-Eun Yang),김성곤(Seong-Gon Kim),김용관(Yong-Kwan Kim) 대한구강악안면외과학회 2004 대한구강악안면외과학회지 Vol.30 No.2

The eyes, the saying goes, are the windows of the soul. It’s the first thing you notice about a person. Therefore, many people want to possess beautiful eyelids. Surgical formation of a palpebral fold and sulcus divides the lid into two well-defined segments (palpebral and pretarsal), producing the double eyelid desired by many Oriental women as well as an increasing number of man recently. Upper lid blepharoplasty is the Oriental eye is one of the variations of standard upper lid blepharoplasty. In Oriental double eyelid surgery, there have been two approaches to form a superior palpebral fold: the buried suture(nonincision) method and the full external incision method. Conventionally, the nonincision technique has been shown to produce little postoperative edema. However, the probability of the fold disappearing is high, and this technique cannot be performed in patients with fatty eyelids. Conversely, the incision technique has contrary characteristics. Recently, partial incision(or semi-open) technique which is combination of mentioned methods is used, this technique is removal of pretarsal tissue, muscle, and/or orbital fat around 2 or 3 incision site to facilitate tarsus-dermal adhesion. Our method is on the basis of this technique, furthermore, compared with conventional semi-open method, Y(Yang’s) needle assisted double eyelid operation is more easy, convenient, saving-time method and provide satisfactory results.

Foley catheter를 이용한 관골궁 골절 정복술

양병은 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.4

The zygomatic bone occupies a prominent and important position in the facial skeleton. The zygoma forms a significant portion of the floor, lateral wall of the orbit and the zygomatic arch, otherwise known as the malar eminence, which plays a key role in the determination of facial morphology. It is structure where the masseter muscle is inserted on the ventral part of the arch, and participates in the formation of the face, giving it a prominence of each cheek and a round outline. It is prone to fracture due to its bony prominence. Between the zygomatic arch and the skull, the coronoid process of the mandible moves freely when the mouth is opened and closed. A fracture which depresses this arch generally implicates a partial or total obstruction of the movement of the condyle and of the coronoid process of the mandible, changing the opening and closed. A fracture which depresses this arch generally implicates a partial or total obstruction of the movement of the condyle and of the coronoid process of the mandible, changing the opening and closure of the mouth. these fractures may also be responsible for the so called false ankylosis of the TMJ. The author describes a simple technique for reducing zygomatic arch which is displaced medially and impinges on the coronoid process. The technique is concerning the alevation of depressed fracture of zygomatic arch using the foley catheter. I think that this technique would be avilable for out patient department under local anesthesia and intravenous conscious sedation. Also, it would be used in postoperative stabilization of reduced comminuted zygomatic arch fracture and used in reduction malarplasty.

Long-term Stability after Reduction of Mandible Fracture by Keyhole Plate: Evaluation at the Time of Plate Removal

Cheon, Kyeong-Jun,Cho, Seoung-Won,Jang, Won-Seok,Kim, Ju-Won,Yang, Byoung-Eun Korean Association of Maxillofacial Plastic and Re 2020 Maxillofacial Plastic Reconstructive Surgery Vol.42 No.-

Background: Various types of miniplates have been developed and used for the reduction of facial bone fractures. We introduced Yang's Keyhole (YK) plate, and reported on its short-term stability. The purpose of this study was to evaluate the long-term stability of the YK plate, as a follow-up study, by examining the patients who had used the YK plate among the patients with the reduction of mandible fractures and who visited for plate removal. Methods: We reviewed the medical records of 16 patients who underwent mandibular fracture fixation using a YK plate (group I) and 17 patients who underwent mandibular fracture fixation using a conventional plate (group II). Assessment was then made on malunion, occlusal stability, discomfort during the application, and clinical symptoms. Results: From January 2015 to December 2017, a total of 36 patients underwent mandibular fracture surgery using a YK plate. A total of 16 patients received plate removal. Among them, 15 were male and 1 female. The average age was 26 years. The applied surgical sites were the 12 on mandibular angle, 4 on mandibular symphysis, and 2 on subcondyle. The application period of YK plate was an average of 335 days. During the same period, 45 people underwent surgery on the conventional plate. A total of 17 patients received plate removal. Among them, 15 were male and 2 females. The average age was 36 years. The applied surgical sites were the 8 on mandibular angle, 4 on mandibular symphysis, and 2 on subcondyle. The application period of the conventional plate was an average of 349 days. No malocclusion occurred at the time of removal, and occlusion was stable. No patient complained of joint disease or discomfort. Conclusion: The YK plate system, in which the screw was first inserted and the plate was applied, for clinical convenience did not cause any particular problem and no significant difference from the conventional plate.

선비문화가 조선시대 별서정원에 미친 영향에 관한 연구 : 보길도원림, 소쇄원, 남간정사, 다산초당을 중심으로

양병이,박은영,박휘 한국전통조경학회 2003 한국전통조경학회지 Vol.21 No.1

There was no difference between the designer and the user of gardens in Choson Dynasty. And the gardens were cultivated by the scholars in the time, called 'Sunbi(士)'. The studies of gardens of Choson Dynasty have, these days, been concentrated on just physical parts and existing data on them. So, there is a lack of understanding the background of garden constructions and their designers. This study focuses on the designers of the gardens. In addition, since most of designers were the scholars, we are also concerned with their culture. The areas for case study are Yun Seun-do's Buyongdong garden, Yang San-bo's Soseawon, Song Si-yeul's Namganjungsa, and Jung Yag-yong's Dasanchodang. These four gardens are representatives of the villa gardens of Chosen Dynasty that reflect Sunbi culture. We studied how Sunbis' lives were reflected on every corners of the gardens. The result of the study is to show how harmoniously spaces and physical parts in each gardens match with four categories of spritual values(a view of nature, a moral sense, scholastic pursuit, and a life of leisure) that constitute the cores of Sunbi culture.

PET/CT를 이용하여 진단한 구강암의 증례

김영희,양병은,조영민,김성곤 대한구강악안면방사선학회 2006 Imaging Science in Dentistry Vol.36 No.2

PET/CT is a new imaging technology that combines high-quality Positron Emission Tomography (PET) and Computed Tomography (CT). This imaging provides simultaneous anatomical and metabolic information. Therefore PET/CT is useful diagnostic modality for early detection of malignant tumor, accurate staging, decision on therapeutic plan, monitoring response to therapy and rapid detection of recurrence. We report oral and maxillofacial cancers diagnosed by using PET/CT and the usefulness of PET/CT in the evaluation of postoperative recurrence.

악교정 수술 환자에서 수술부 술전소독에 사용되는 소독제의 항균성에 대한 임상적인 비교 : POVIDONE-IODINE AND CHLORHEXIDINE

엄기훈,한세우,유준영,양병은,김용관 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.2

For prevention of bacteremia and surgical field contamination, various concentration are used in preoperative skin preparation. Of these, povidone(PVP)-iodine has been known as one having believable effect. But, application of PVP-Ⅰon pral and maxillofacial field has some problems-skin discoloration, hypersensitivity, corneal irritation,etc. Therefore chlorhexidine has been tried to replace PVP-Ⅰ. More recent studies of antibacterial effect of chlorhexidine and PVP-Ⅰ has been achieved on the other field. The purpose of this study was to compare the antibactreial effect of two kinds of skin disinfectants used in oral and maxillofacial surgical field.-chlorhexidine and PVP-Ⅰ. We studied the 40 patients who have taken operation of orthognathic surgery in Dept. of oral & Maxillofacial Surgery, Kangnam General Hospital Public Corp..Results of bacterial culture taken from facial skin and intraoral mucosa after application 10% PVP-Ⅰ and 0.5% chlorhexidine were compared.

Comparable efficacy of silk fibroin with the collagen membranes for guided bone regeneration in rat calvarial defects

Byoung-Eun Yang,Jin-Hee Ahn,Sang O Park,Hye-Won Shim,Jwa-Young Kim 대한치과보철학회 2014 The Journal of Advanced Prosthodontics Vol.6 No.6

PURPOSE Silk fibroin (SF) is a new degradable barrier membrane for guided bone regeneration (GBR) that can reduce the risk of pathogen transmission and the high costs associated with the use of collagen membranes. This study compared the efficacy of SF membranes on GBR with collagen membranes (Bio-Gide®) using a rat calvarial defect model. MATERIALS AND METHODS Thirty-six male Sprague Dawley rats with two 5 mm-sized circular defects in the calvarial bone were prepared (n=72). The study groups were divided into a control group (no membrane) and two experimental groups (SF membrane and Bio-Gide®). Each group of 24 samples was subdivided at 2, 4, and 8 weeks after implantation. New bone formation was evaluated using microcomputerized tomography and histological examination. RESULTS Bone regeneration was observed in the SF and Bio-Gide®-treated groups to a greater extent than in the control group (mean volume of new bone was 5.49 ± 1.48 mm3 at 8 weeks). There were different patterns of bone regeneration between the SF membrane and the Bio-Gide® samples. However, the absolute volume of new bone in the SF membrane-treated group was not significantly different from that in the collagen membrane-treated group at 8 weeks (8.75 ± 0.80 vs. 8.47 ± 0.75 mm3, respectively, P=.592). CONCLUSION SF membranes successfully enhanced comparable volumes of bone regeneration in calvarial bone defects compared with collagen membranes. Considering the lower cost and lesser risk of infectious transmission from animal tissue, SF membranes are a viable alternative to collagen membranes for GBR.

안면신경 압박손상 후 Adenovirus 매개 BDNF 유전자 전달을 통한 신경손상 회복에 관한 연구

양병은(Byoung-Eun Yang),이종호(Jong-Ho Lee) 대한구강악안면외과학회 2006 대한구강악안면외과학회지 Vol.32 No.4

Objectives Despite considerable advances in technique, experience and skill, the precise place of surgery in the treatment of facial nerve injury remains uncertain. We designed a facial nerve crush injury model in rats and evaluated the recovery of crushed nerve which is the most common injury type of facial nerve using adenovirus vector mediated in vivo gene transfer of Brain derived neurotrophic factor(BDNF). Materials and methods In 48 Sprague Dawley rats, we made a facial nerve crush injury model to main trunk before the furcation, and injected a 1011pfu adenoviral BDNF in experimental group(BDNF adenoviral injection group; ad-BDNF) and 3㎕ saline in control group(Saline injection group; saline). After a period of regeneration from 10 to 40 days, nerve regeneration was evaluated with functioinal test (vibrissae and ocular movement), electrophysiologic study(threshold, peak voltage, conduction velocity) and histomorphometric study of axon density. Results Vibrissae and ocular movement, threshold and conduction velocity improved as time elapse in both group, however axon density was increased significantly only in experimental group. Functional test in 10 days and 20 days showed no difference between experimental group and control group. Vibrissae movement, threshold, conduction velocity and axon density in 30 days revealed that the regeneration in quality of experimental group was significantly superior to that of control group. Conclusion In general, there is tendency for nerve regeneration in experimental group (BDNF-adenovirus injection group) during 40 days, functional recovery was detected successfully after facial nerve crush in 30 days postoperatively

Platform switching(또는 Platform shifting) 개념 및 임상적용에 관한 고찰

양병은(Byoung-Eun Yang),송상훈(Sang-Hun Song),김성곤(Seong-Gon Kim) 대한치과의사협회 2007 대한치과의사협회지 Vol.45 No.9

Many dentists and patients expect that implant function and esthetics will not change over time. However, even the most successful implant restorations with ideal position, vertical height, and occlusion can be aesthetically pleasing, but may hide a common problem. Many dentists noticed that there can be some circumferential bone loss around the neck of the implants. To circumvent this bone loss. a “platform switching” concept was introduced recently. The basic concept of platform switching is by moving the fixture-abutment interface further away from the crestal bone to minimize crestal bone loss. Since crestal bone loss is a multifactor problem, it is important to consider microgap formation and micromotion between the implant and abutment because platform switching does not solve the problem on its own. In this article, we reviewed studies concerning platform switching and discussed the clinical application and the problems that may occur with its use.

Conical connection 임플란트(Ankylos<SUP>Ⓡ</SUP> dental implant)에 대한 후향적 임상연구

양병은(Byoung-Eun Yang),송상훈(Sang-Hun Song),심혜원(Hye-Won Shim),이상민(Sang-Min Lee),김성곤(Seong-Gon Kim) 대한치과의사협회 2006 대한치과의사협회지 Vol.44 No.11