1.Effective reduction of mandibular angle fracture with mini-implant; case report.
Byoung Eun YANG ; Young Jun CHOI ; Won Cheul CHOI
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2007;33(4):397-400
In an open reduction of the mandibular angle fracture, it is crucial to approximate each fracture segment as closer as possible for the reduction of the healing period. In this case report, we proposed a new technique for the mandibular angle fracture. This was designed to minimize the gap between two separated segments using mini-implants and surgical wires. Mini-implants were placed around the fracture line, followed by wire ligation to minimize the fracture gap. And then internal fixation was easily employed with plates and screws. The advantages of this technique were reduced time for operation, the promotion of healing, rapid functional recovery, and few complications.
Ligation
2.Adenoviral vector mediated in vivo gene transfer of BDNF promote functional recovery after facial nerve crush injury.
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2006;32(4):308-316
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 3microliter 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.
Adenoviridae
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Animals
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Axons
;
Brain
;
Brain-Derived Neurotrophic Factor*
;
Facial Nerve Injuries
;
Facial Nerve*
;
Nerve Regeneration
;
Rats
;
Rats, Sprague-Dawley
;
Regeneration
;
Vibrissae
3.Fractured zygomatic arch reduction with foley catheter
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2003;25(4):353-357
Anesthesia, Local
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Ankylosis
;
Catheters
;
Cheek
;
Conscious Sedation
;
Humans
;
Mandible
;
Masseter Muscle
;
Mouth
;
Orbit
;
Skeleton
;
Skull
;
Temporomandibular Joint
;
Zygoma
4.Simple double eyelid operation (oriental blepharoplasty) using Y needle.
Byoung Eun YANG ; Seong Gon KIM ; Yong Kwan KIM
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2004;30(2):157-161
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.
Blepharoplasty
;
Edema
;
Eyelids*
;
Female
;
Humans
;
Needles*
;
Orbit
5.A review of rare complications of maxillary sinus floor augmentation
Sung Woon ON ; Seoung Won CHO ; Byoung Eun YANG
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2019;45(6):351-356
Maxillary sinus floor augmentation (MSFA) is an essential procedure for implant installation in the posterior maxillary area with vertical alveolar bone deficiency. For the past several decades, MSFA has been refined in terms of surgical methods along with technical progress, accumulation of clinical studies, and development of graft materials and surgical instruments. Although some complications in MSFA are inevitable in clinical situations, management of those complications in MSFA has been well established thanks to many clinicians and researchers. Nevertheless, some rare complications may arise and can result in fatal results. Therefore, clinicians should be well aware of such rare situations and complications associated with MSFA. In this review, the authors present several rare complications regarding MSFA, along with corresponding management strategies through a thorough review of the literature.
Maxillary Sinus
;
Sinus Floor Augmentation
;
Surgical Instruments
;
Transplants
6.A review of rare complications of maxillary sinus floor augmentation
Sung Woon ON ; Seoung Won CHO ; Byoung Eun YANG
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2019;45(6):351-356
Maxillary sinus floor augmentation (MSFA) is an essential procedure for implant installation in the posterior maxillary area with vertical alveolar bone deficiency. For the past several decades, MSFA has been refined in terms of surgical methods along with technical progress, accumulation of clinical studies, and development of graft materials and surgical instruments. Although some complications in MSFA are inevitable in clinical situations, management of those complications in MSFA has been well established thanks to many clinicians and researchers. Nevertheless, some rare complications may arise and can result in fatal results. Therefore, clinicians should be well aware of such rare situations and complications associated with MSFA. In this review, the authors present several rare complications regarding MSFA, along with corresponding management strategies through a thorough review of the literature.
7.Squamous odontogenic tumor: a case report and review of literatures.
Jwa Young KIM ; Jin Cheol KIM ; Byoung Ouck CHO ; Seong Gon KIM ; Byoung Eun YANG ; Horatiu RATARU
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2007;33(1):59-62
A squamous odontogenic tumor (SOT) is an epithelial originated benign tumor. It has been rarely reported and most was intramural type. We observed a case of SOT in the mandible. It was associated with the odontogenic cyst. It was shown positive to pancytokeratin and p53. Considering that the case was free from recurrence for 5 years after surgery, p53 positive did not seem to be related to the prognosis of the disease.
Mandible
;
Odontogenic Cysts
;
Odontogenic Tumor, Squamous*
;
Prognosis
;
Recurrence
8.Simultaneous occurrence of an odontogenic keratocyst and squamous odontogenic tumor in the mandible : a case report and immunohistochemical study.
Seong Gon KIM ; Seong Seok CHOI ; Sang Hun SONG ; Byoung Eun YANG ; Byoung Ouck CHO ; Hye Rim PARK ; Je Yong CHOI
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2005;31(4):312-315
A squamous odontogenic tumor (SOT) is rare disease and it is believed to originate from epithelial rests of Malassez of the periodontal membrane. Neither sex nor site predilection in either jaw has been established. Some lesion can be shown in juxtaposition in tooth roots. Although most lesions remain smaller than 2 cm, our cases involved a half of left mandibular ramus. The exact pathogenesis is still unknown. We report a case of SOT including the results of immunohistochemical study of pancytokeratin and p53.
Jaw
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Mandible*
;
Membranes
;
Odontogenic Cysts*
;
Odontogenic Tumor, Squamous*
;
Rare Diseases
;
Tooth Root
9.The first year study on the marginal bone loss after the implant installation
Chee Won SONG ; Mun Hoy LEE ; Jun Hyun AN ; Jung Hwan HAN ; Seong Gon KIM ; Byoung Eun YANG ; Yong Chan LEE ; Byoung Ouck CHO
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2004;26(3):250-256
40-years old) was 1.80+/-0.52mm and 1.51+/-0.58mm in younger age(<40-years old). The period between L2-and L3 showed significant changes in marginal bone oss(p<0.05). In conclusion, the marginal bone loss in L2-L3 period was most severe. Thus, the intensive care and follow-up in this period will be required to prevent excessive bone loss.]]>
Female
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Follow-Up Studies
;
Heart
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Humans
;
Critical Care
;
Male
;
Transplants
10.Conventional Intermittent "Top-up" Injections of 0.25% Bupivacaine/Fentanyl vs 0.125% Bupivacaine/Fentanyl during Labor.
Woo Chang YANG ; Byoung Hun LEE ; Eun Mee LEE ; Mi Hwa CHUNG ; Rim Soo WON
Korean Journal of Anesthesiology 1998;35(3):467-472
BACKGROUND: Conventional intermittent "Top-up" injections (CIT) of fentanyl added to bupivacaine reduces the total amount of local anesthetic required, resulting in less motor blockade, reducing incidence of instrumental deliveries, and improving the quality of analgesia during labor. The purpose of this study was to compare the analgesic efficacy of two different solutions and side effects of them. METHODS: Fifty healthy parturients were divided into two groups: intermittent epidural injections of 0.25% bupivacaine with 0.0005% fentanyl (Group I) and 0.125% bupivacaine with 0.0005% fentanyl (5 microgram/ml) (Group II). We injected 5 ml of each solution to block T10 sensory level of the request of the parturients. Assessments included interval of epidural injection, duration of first and second stage of labor, total dose of bupivacaine, maternal blood pressure, satisfaction, fetal heart rate, and Apgar scores. RESULTS: The interval of epidural injection was 75.7+/-50.6 min in Group I, compare with 57.8+/-27.5 min in Group II (p<0.05). The total dose of bupivacaine was 45.5+/-15.3 mg in Group I, compared with 23.5+/-10.4 mg in Group II (p<0.05). There was no significant difference between the two groups in terms of duration of labor, maternal blood pressure, maternal satisfaction, fetal heart abnormality, or Apgar scores of neonates. No serious side effects were encountered in either group, although two patients in Group I experienced urinary retention. Only one patient in each group experienced nausea and vomiting. CONCLUSIONS: The injection of 0.125% bupivacaine plus fentanyl provides good analgesia during labor. We concluded that lower concentration of bupivacaine was better in consideration of adverse effects of it on fetus and mother.
Analgesia
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Blood Pressure
;
Bupivacaine
;
Female
;
Fentanyl
;
Fetal Heart
;
Fetus
;
Heart Rate, Fetal
;
Humans
;
Incidence
;
Infant, Newborn
;
Injections, Epidural
;
Mothers
;
Nausea
;
Pregnancy
;
Urinary Retention
;
Vomiting