• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제42권6호
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• pp.388-392
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• 2016

In this study, we present the surgical treatment of obstructive sleep apnea in a child with Treacher Collins syndrome. A 10-year-old girl with a past history of Treacher Collins syndrome presented to our clinic with her parents for respiratory distress and insomnia. The patient was referred to a sleep laboratory where she was diagnosed with obstructive sleep apnea, which was a consequence of her Treacher Collins syndrome. The patient underwent mandibular distraction osteogenesis under general anesthesia. The mandible was expanded by 15 mm using internal bilateral distractors. After distraction osteogenesis, the patient's respiratory problems resolved, and she was able to sleep comfortably. Distraction osteogenesis was an effective method of advancing the mandible, increasing the upper airway space and ultimately preventing obstructive sleep apnea syndrome in patients with Treacher Collins syndrome.

• Journal of Chest Surgery
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• 제35권9호
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• pp.697-700
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• 2002

50세 여자가 전흉부의 통증을 주소로 내원하였다. 흉부단층촬영에서 우상엽을 침범하고 있는 전종격동의 종괴가 발견되었으며, 수술로서 완전절제하였다. 조직검사에서 악성 흑색종을 진단할 수 있었고, 원발병소의 가능성이 있는 피부, 구강, 안저, 비강, 직장, 항문, 질 등을 각각의 전문의에게 검사를 받았으나 이상소견이 없었다. 원발병소가 자연적으로 소멸된 경우가 아니라면 종격동에 원발한 악성 흑색종이라고 생각된다. 종격동에 발생하는 악성 흑색종은 아주 드문 질환으로 세계적으로 8례만이 보고되고 있고, 한국에서는 아직 예가 없기에 보고하는 바이다.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제28권1호
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• pp.13-20
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• 2006

The articulation disorders associated with velopharyngeal insufficiency (VPI) in cleft palate patients are interested to clinicians particularly. The purpose of this study was to investigate mainly the oropharyngeal air pressure and overall air flow in cleft palate patients. The pressure-measuring catheter was positioned at the midportion of the oropharyngeal cavity with a facial mask. Test words were composed of 9 meaningless polysyllabic words and 17 meaningful words. Aerophone II and Nasometer II were used to measure peak air pressure, mean air pressure, maximum flow rate, volume, phonatory flow rate, nasalance. The data shows that airflow of the cleft palate patient group were higher than those of the control group. Intraoral air pressure of the cleft palate patient group was lower than those of the control group. The first vowel formant and first Bandwidths of the cleft palate patient group were higher than those of the control group.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제31권6호
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• pp.531-534
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• 2009

Dermoid cysts located in the floor of the mouth are very rare developmental keratinizing squamous epithelium lined cysts. Anatomically, they are classified as sublingual (median genioglossal), submental (median geniohyoid) and lateral dermoid cysts, and they can be further classified as epidermoid, dermoid, and teratoid cysts by histology. We report a case of sublingual dermoid cyst in a 16-year-old boy presenting as a large sublingual swelling causing speech and swallowing difficulties and discuss the surgical treatment techniques and histopathological features of this lesion.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제27권1호
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• pp.92-96
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• 2001

Velopharyngeal function refers to the combined activity of the soft palate and pharynx in closing and opening the velopharyngeal port to the required degree. In normal speech, various muscles of palate & pharynx function as sphincter and occlude the oropharynx from the nasopharynx during the production of oral consonant sounds. Inadequate velopharyngeal function caused by neurologic disorder - cerebral apoplexy, regressive diseases - disseminated sclerosis, Parkinson's disease, congenital deformity - cleft palate, cerebral palsy and etc. may result in abnormal speech characterized by hypernasality, nasal emission and decreased intelligibility of speech due to weak consonant production. In our study, we constructed speech aids prosthesis - Palatal lift in acquired idiophathic VPI patient and assessed velopharyngeal function with various diagnostic instruments which can evaluate the speech characteristics objectively.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제27권1호
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• pp.61-64
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• 2001

This study evaluated the use of endoscopy to examine jaw cysts during the operation. Fifteen jaw cysts were explored with a endoscope immediately before and after enucleation. Endoscopic findings were evaluated and recorded with video tape. Before enucleation, there were many white fibrous floating materials within the cystic cavity. Cystic lining showed smooth and regular appearance with capillary network. However, there were some fibrous scar tissues and irregular architecture in preoperative infection. After enucleation, there were white shiny bony surfaces with fresh vascular network. In some cases, floating fibrous tissues remained after removal.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제27권1호
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• pp.87-91
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• 2001

On patients with disorder of hematopoiesis such as leukemia, aplastic anemia, MDS(Myelodisplastic Syndromes), removal of infectious foci prior to the BMT(Bone Marrow Transplantation) is a necessity and what is more, there is no sufficient time to control the infections because the chemotherapy for BMT should be started as soon as possible. And the transfusion should be minimized to prevent the alloimmunization. In those reasons, oral & maxillofacial surgeons are often in need of multiple extractions, and should take into consideration the possibility of complications after multiples extractions such as infection, severe bleeding because those situations can be fatal on patients with disorder of hematopoiesis. We present our experience in multiple extractions on 30 patients with disorder of hematopoiesis referred from Catholic Hematopoiesis Stem Cell transplantation Center at St. Mary's Hospital, The Catholic University of Korea.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제27권1호
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• pp.83-86
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• 2001

Myoepithelioma is histologically composed exclusively of myoepithelial cells. Myoepithelial cells are present in the major and minor salivary glands. Salivary gland neoplasms that frequently contain myoepithelial cells are the pleomorphic adenoma, adenoid-cystic carcinoma, and epithelial myoepithelial carcinoma of intercalated duct origin. Neoplasms composed exclusively of myoepithelial cells are rare. Myoepitheliomas may be composed of spindle-shaped cells, plasmacytoid(hyaline) cells, or combination of both in varying proportions. A case is reported of plasmacytoid myoepithelioma with ultrastructural confirmation, together with reviews of the English literature.

• 치과방사선
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• 제19권1호
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• pp.19-22
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• 1989

florid osseous dysplasia(FOD)는 악골에 전반적인 방사선 불투과성을 보이는 질환으로 환자는 대개 무증상이나 만성 골수염에 이환 될 가능성이 상당히 높다. 치료로는 환자가 무증상인 경우 아무런 처치가 필요하지 않으나 구강위생을 청결히 하여 치아를 보존하여야 하며 치과 보철물 등의 장착에 장애가 될 경우나 만성 골수염에 이환 된 경우 주의 깊은 외과적 처치가 요구된다고 할 수 있다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제41권5호
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• pp.284-289
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• 2015

In cases of severe alveolar bone atrophy in the posterior maxillary area, which has only a thin sinus floor, the autogenous tooth bone graft block (ABTB) was used to wrap the implant to enhance its primary stability and osseointegration in the sinus. These cases with four years of clinical follow-up demonstrate the applicability of the ABTB in maxillary sinus membrane elevation to improve the outcomes of implant placement.