• Maxillofacial Plastic and Reconstructive Surgery
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• v.19 no.4
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• pp.435-446
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• 1997

Overall study was carried out for the patients visiting Department of Oral & Maxillofacial Surgery through Emergency Room in Chonnam University Hospital, from Jan. 1, 1992 to Dec. 31, 1996. Result obtained were as follows ; Male predilection was shown, the male to female ratio being 2.5 to 1. The frequently developing age group were the first 3rd and 4th decade and under the age of 9 was followed. The number of patients for emergency was peak in September and October to 11%. About the causes for emergency, traffic accident was the most, and fall down injury and assault were followed. About the injury lists, facial laceration was preceded and the next facial bone fracture and the tooth injury followed. In the facial bone fracture, fracture in the mandible only was the most, and zygomaticomaxillary complex fracture, and mandible-maxilla complex fracture were followed. when the case of the mandible fracture, symphysis, condyle, angle were marked in succession. 57% was predomunatly ranged in the timea of 18 : 00 to 03 : 00 for the emergency. From injury onset to visiting emergency room, the range of 8 hours to 12 hours was predominant. Above results suggest that urgent patients of oral and maxillofacial area were relatively so high that division of oral and maxillofacial surgery should be established immediately.

• The Journal of the Korean dental association
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• v.32 no.1 s.296
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• pp.69-74
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• 1994

Fifty-one patients with fracture of mandible were treated by rigid internal fixation using AO Eccentric Dynamic Compression Plate. All teeth in the fracture line were left in all patients. None of patients were placed into maxillomancibular fixation. Two patients postoperatively developed infection (3.9%). The use of the AO EDCP for the fracture of mandible was found to be useful to prevent the infection, even permitting maintenance of the teeth in the line of fracture.

• Journal of Veterinary Clinics
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• v.30 no.2
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• pp.127-130
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• 2013

A 13-year-old, 4.2 kg female poodle was referred for failure of first bilateral mandibular surgery at a local animal hospital after pathologic fracture. Surgery was performed with 2.0-mm miniplates/screws and porcine cancellous bone grafts. In addition, because of the large size of the right segmental defect, a barrier absorbable membrane was employed for guide bone regeneration on right mandible. After surgery, follow-ups performed at 1 day, 1, 4, 8, and 12 weeks; there were no signs of dental malocclusion, nonunion or soft tissue infection. However, a 1-year long-term follow-up showed nonunion in the left mandibular fracture site for which a collagen membrane had not been used. It is considered that use of porcine bone graft with barrier absorbable membrane may be effective for the repair of mandibular nonunion in a geriatric dog.

• Korean Journal of Cleft Lip And Palate
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• v.9 no.2
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• pp.55-62
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• 2006

1980년 일리자로프가 하지에서의 골 신장술을 발표한 이래 수많은 외과 의사들이 임상연구와 발표를 거듭해 현재의 골 신장술을 이루었다. 악골에서 골 신장술의 적용은 1992년 8명의 악골 기형 환아에게 하악지 신장술을 적용한 맥카시의 발표를 기점으로 시작되었다. 골 신장술의 장점은 부족한 골조직과 함께 주변 연조직을 신장시키는 것으로 복합적 조직 결손을 보이는 선천성 악골 기형 환자들에게 특히 유리하게 적용시킬 수 있다. 반안모 왜소증은 안면 반측의 상/하악골 및 악관절, 연조직의 저성장 및 결손을 보이는 비교적 흔한 악골 기형이다. 하악지 신장술의 활발한 연구로 이를 이용한 악관절 증상과 안면 비대칭의 해소가 일차적 치료기법으로 선택되고 있다. 연구자들은 악관절 증상과 안면 비대칭을 주소로 내원한 성인 반안모 왜소증 환자에게 상악 및 하악의 동시 골 신장술을 적용하여 만족할 만한 결과를 얻었기에 이를 발표한다. 상악골의 Le Fort 제1형 골 절단술과 이환측의 하악지 시상분할 골절단술 후에 Molina distractor를 하악지에 적용하고 악간 고정을 통해 동시 신장을 꾀하였다. 수술 기법 및 평가 기법에 대하여 논의하였다.

• The Journal of the Korean dental association
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• v.13 no.2
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• pp.159-168
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• 1975

• The Journal of the Korean dental association
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• v.22 no.3 s.178
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• pp.213-222
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• 1984

• The Journal of the Korean dental association
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• v.7 no.1
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• pp.20-23
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• 1969

This was the case of 22 years old. Korean female patient wich occlusal due to prognathism and left displacement of mandible. This patient was corrected by bilateral oblique osteotomy.

• The korean journal of orthodontics
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• v.38 no.1
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• pp.13-30
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• 2008

Objective: The objective of this study was to evaluate the displacement pattern and the stress distribution of the finite element model 3-D visualization during symphyseal widening according to the osteotomy position, osteotomy type, and distraction device. Methods: The kinds of distraction devices used were tooth-borne type, hybrid type, bone-borne type and tooth-borne type $30^{\circ}$ angulated, and the kinds of osteotomy design were vertical osteotomy line between the central incisors and step osteotomy line through the symphysis. Results: All reference points of the mandible including the condyles were displaced laterally irrespective of the osteotomy position, osteotomy method and distraction device. The anteroposterior or vertical displacements showed small differences between the groups. The widening pattern of the osteotomy line in the tooth-borne type of device was v shaped, and that of bone-borne type was a reverse v shape. However, the pattern in the hybrid type was parallel. The lateral displacement of the mandibular angle by the bone-borne device was more remarkable than the other types of devices. The displacement by the $30^{\circ}$ angulated tooth-borne type was different between the left and right sides in both the transverse and anteroposterior aspects. Conclusion: The design of the distraction devices and osteotomy line can influence the displacement pattern and the stress distribution during mandibular symphyseal distraction osteogenesis procedures.

• Journal of the korean academy of Pediatric Dentistry
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• v.45 no.3
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• pp.378-385
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• 2018

Mandibular fractures occur with high incidence among various fractures in maxillofacial region in children. Jaw fractures in children should be approached differently than in adults because bone growth continues throughout childhood. As far as displacement of the fragment is not severe, or if it is condyle that is fractured, closed reduction and additional intermaxillary fixation can be considered. Functional exercise is also required to prevent ankylosis of temporomandibular joint. Several complications, particularly malocclusion and facial asymmetry due to growth disturbances, can occur after condylar fractures. If growth disturbances take place after mandibular fractures, catch-up growth may occur in some patients, thus, periodic observation is necessary. In case of persistent growth disturbances, functional devices may be used to prevent severe facial asymmetry. This case report describes the long-term follow-up of two patients with facial asymmetry after mandibular fracture.

• Journal of the korean academy of Pediatric Dentistry
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• v.47 no.1
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• pp.1-8
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• 2020

The aim of this retrospective study was to investigate etiology, clinical features, and treatment modalities of the mandibular condyle fracture in children and young adolescents. This study was conducted based on medical records and radiographic examinations of 44 pediatric patients. Patients received treatment under diagnosis of mandibular condylar fracture. They were divided into 4 groups according to their age. The involvement of condyle in the mandible fracture occurred in higher percentage in younger age groups. Falling was the most common etiologic factor in all age group, especially in children with age under 7. Condyle head was the most frequent site of fracture in age group of 4 - 7 whereas fracture tends to occur in lower condylar areas in older groups. In 54.5% of the mandibular condyle fracture, symphysis fracture was accompanied. Teeth injury occurred in higher incidency when condyle fracture accompanied symphysis fracture. Conservative treatments were applied to 43 out of 44 patients.