• Title/Summary/Keyword: 하악골 발육 부전

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MANDIBULAR EXPANSION IN A CONGENITAL AGLOSSIA PATIENT (선천적 무설증 환자에서의 하악골 확장)

  • Cho, Jae-Yong;Kim, Jung-Wook;Jang, Ki-Taeg;Kim, Chong-Chul;Hahn, Se-Hyun;Lee, Sang-Hoon
    • Journal of the korean academy of Pediatric Dentistry
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    • v.30 no.4
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    • pp.673-677
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    • 2003
  • Congenital aglossia is a very rare condition. The oral manifestations of an aglossia include micrognathia, high arched or cleft palate, defects of the lower lip, an absence of lateral incisors and a mandibular growth deficiency. Although the etiology of congenital aglossia is unclear, both genetic and teratogenic mechanisms have been proposed. Treatment of aglossia patients depends on the nature and severity of the condition which includes surgical rehabilitation of the tongue tip to some extent, orthopedic expansion of the mandible to guide mandibular growth, and mandibular expansion by a distraction osteogenesis. In the present case, a 6 year old female aglossia patient with situs inversus was treated. A bonded hyrax screw was used to increase her mandibular primary intercanine width and intermolar width. A second phase orthodontic and surgical treatment will be possible after some retention phase.

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A CASE REPORT OF ALLOPLASTIC PARANASAL AUGMENTATION AS AN ADJUNCTIVE TREATMENT OF MANDIBULAR SET-BACK (하악골 전돌증 환자의 악교정술시 부가적 방법으로서의 이물성형 재료를 이용한 비익기저부증강술)

  • Lee, Tae-Yung;Kim, Myung-Sub
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.13 no.1
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    • pp.100-103
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    • 1991
  • In the treatment of mandibular prognathism with concomitant features of narrow alar base and some paranasal deficiency, simultaneous paranasal augmentation for the additional esthetic effect can be considered, if it is determined to correct the mandibular prominence and class III by a mandibular set-back. Alloplastic augmentation has several advantages upon the autogenous means in the respect of dimensional stability and simplicity of operation. This is a case report of silastic paranasal augmentation performed simultaneously with mandibular set-back surgery which has a period of 15 months of follow-up postoperatively.

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THE MANAGEMENT OF REGIONAL ODONTODYSPLASIA OF PERMANENT TEETH IN CHILDREN (어린이 영구치에 나타난 국소적 치아 이형성증의 관리)

  • Lee, Hyung-Sook;Kim, Jae-Moon;Kim, Shin;Jeong, Tae-Sung
    • Journal of the korean academy of Pediatric Dentistry
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    • v.35 no.4
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    • pp.737-743
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    • 2008
  • Regional odontodysplasia is a relatively rare developmental anomaly of dental hard tissue with characteristic clinical, radiographic and histologic features. It requires a continuous and multidisciplinary approaches, and the aim of treatment for these patients should include aiding mastication, improving aesthetics, maintaining normal vertical dimension and space, allowing normal jaw growth and eruptional management of affected teeth. This report describes three cases of regional odontodysplasia with 2-5 years of follow-up. Conservative treatment is chosen to preserve the affected teeth as long as possible, and periodic radiographic and clinical examination was done. During this time, all teeth except one showed progressive development. An interesting finding observed in our cases was that each tooth even in the same person showed different degree of tooth development and eruption rate. Thus, we colcluded that the treatment plan for regional odontodysplasia should be conservative and individualized and based on the assessment of each tooth.

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Statistical study of Mandibular condylar process fractures (하악골 관절 과두돌기 골절의 임상적 연구)

  • Lee, Hee-Chul;Kang, Shin-Ik;Kho, Young-Kyu
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.11 no.1
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    • pp.287-296
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    • 1989
  • Fractures of the mandibular condyle are among the most frequently occuring facial bone fractures. Anatomical structures around the joint inhibit the ideal reposition of the fragments, so variable treatment modalities have been tried selectivly. There can be functional disturbances postoperatively, and normalization of joint function must be considered primarily in treatment planning. Secondly, the possible joint ankylosis and facial deformity following developmental disturbance of facial skeleton must be considered. The authors reviewed 73 patients treated in Dept. of Oral and Maxillofacial Surgery. Inje College of medicine Pusan Paik Hospital from 1981 to 1987. Also literatures were reviewed, and we obtained some reference points concerning the selection of the treatment modality and prevention of the possible complication.

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UNERUPTED PRIMARY MOLARS (미맹출 유구치의 치험례)

  • Kang, Sun-Hee;Yang, Young-Sook;Lee, Kwang-Hee
    • Journal of the korean academy of Pediatric Dentistry
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    • v.32 no.2
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    • pp.217-223
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    • 2005
  • The term 'impaction teeth' is used to designate a tooth which remains unerupted in jaw beyond the time at which it should normally be erupted. Most cases of impacted teeth reported in the literature are permanent teeth. The impaction of primary teeth occur rarely whereas impaction of second primary molars is more numerous than all other impactions. Failure of eruption of primary teeth may cause a number of complications, such as interference with development and eruption of successive permanent teeth, malocclusion, cystic change of tooth follicle. The clinican should consider the various treatment option available (a) No treatment and observation, (b) surgical extraction (c) space regainer. Proper treatment plan should be established after thought consideration of impacted tooth and it's relation with successive permanent tooth.

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A Case of Raine Syndrome (Raine 증후군 1례)

  • Park, Hye Jin;Lee, Jeong Jin;Seo, Jeong Sik;Kim, Hyo Jin;Choi, Je Yong;Lee, Jun Hwa;Nho, Un Seok;Chung, Hai Lee;Kim, Woo Taek
    • Clinical and Experimental Pediatrics
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    • v.46 no.1
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    • pp.91-94
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    • 2003
  • Raine syndrome was described as an unknown syndrome in 1989. It is characterized by severe craniofacial anomalies with microcephaly, hypoplastic nose, depressed nasal bridge, exophthamos/protosis, gum hypertrophy, cleft palate, low-set ears, small mandible, narrow chest, wide cranial sutures and choanal atresia or stenosis, by generalized osteosclerosis with subperiosteal thickening of ribs, clavicles and diaphysis of long bones, and by intracranial calcifications in the particularly periventricular area. It undergoes an autosomal recessive inheritance. Twelve cases of Raine syndrome have been reported in the literature. However, a case of Raine syndrome in Korea has not been reported yet. Therefore, we describe a female newborn with Raine syndrome with a brief review of the literatures.

A MODIFICATION OF THE MICHELET TECHNIQUE FOR SLIDING HORIZONTAL OSTEOTOMY;A CASE REPORT (MICHELET 테크닉의 변형을 이용한 이부성형술의 치험례)

  • Lee, Jin-Gew;Davis, Isaac E.;Swift, James Q.
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.16 no.2
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    • pp.145-151
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    • 1994
  • 앞 턱 부위가 짧고 후방으로 위치해 있을 때 턱의 높이를 증가시키고 전방으로 돌출시키는 축조 이부성형술의 방법으로는, 매식체 삽입술, 골 절단술, 골 절제술 또는 이들을 동시에 시행하는 혼합술등이 행해져 왔다. 그러나 매식체 삽입술에서는 감염 또는 매식체의 유동성 등의 합병증의 발병이 빈발하고 매식체의 밑 부위에 골이 흡수된다든지 연조직의 변화를 예측하기 어렵다든지 하는 복잡한 문제점들이 종종 보고되고 있다. 따라서 매식체를 이용하지 않는 골 절단술이나 골 절제술만을 이용한 다양한 방법의 이부성형술이 많이 시행되고 있다. 하악골이 전후방 관계로 발육부전인 환자에게 양측 하악지 시상분할술을 시행하여 전방 이동시킨 후 앞 턱의 위치를 좀더 개선하기 위하여 $Michel{\'{e}}t$ 테크닉의 변형법을 이용한 이부성형술을 추가로 시행하였다. 이 방법의 이부성형술은 턱의 수직적, 수평적 길이를 증가시키기 위하여 하악결합면 부위에 장부와 장붓구멍 모양을 한 골 절단술을 시행하고 광범위한 연조직경을 보존하여 골편으로의 혈류 차단을 최소화하였으며 나사를 이용한 견고한 고정을 용이하게 하였다. 이 술식은 턱을 수직적으로 증가시킬 때 두 골편 사이의 공간에 골 이식을 시행할 필요가 없으며, 금속판을 이용하지 않아도 정확한 위치에 골편을 고정하기가 용이하고, 또한 고정용 나사가 향후 골형성 부위에 위치하게 된다는 장점을 경험하게 되어 이에 한 증례를 보고하는 바이다.

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CLINICAL STUDY OF ORTHOGNATHIC SURGERY ON CLEFT LIP AND PALATE PATIENTS (순악구개열환자에서의 외과적 악교정술의 검토(증례보고))

  • Song, Jae-Chul;Lee, Geon-Ho;Jang, Hyun-Joong;Kim, Chin-Soo;Lee, Sang-Han
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.15 no.4
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    • pp.317-321
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    • 1993
  • Two patients with maxillary developmental deficiency who have previously undergone cheiloplasty and palatoplasty were operated on by simultaneous two jaw surgery and maxillary advancement surgery respectively. And the following results were obtained. 1. After the operation, maxilla shifted superiorly, and then inferiorly without noticible posterior relapse. 2. Postoperative mandibular relapse to the anterior direction was evident in both cases. 3. It is highly suggested that definitive measures to enhance postoperative stability in orthognathic surgery on the cleft lip and palate patients be developed.

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Usefulness of Mouth Guard when the Endotracheal Intubation Is Indicated for Treacher Collins Syndrome Patient (Treacher Collins 증후군 환아의 기관 삽관 시 마우스가드의 활용)

  • Choi, Haein;Choi, Byungjai;Choi, Hyungjun;Song, Jeseon;Lee, Jaeho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.41 no.1
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    • pp.40-46
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    • 2014
  • Treacher Collins syndrome (TCS) is autosomal dominant disorder that occurs approximately 1 in 25,000 to 50,000 live births. The main signs of syndrome are hypoplasia of facial bone and microtia. One in third of them is associated with cleft palate and often shows dental hypoplasia. TCS patients need several number of surgery with general anesthesia throughout their life time for recovery of function and esthetic. Endotracheal intubation of TCS patient is very difficult due to microstomia, retrognathia, choanal stenosis, and decreased oropharyngeal airway. Therefore, general anesthesia of adolescent TCS patient with immature incisor roots has high risk of causing dental trauma. This case is regarding TCS patient who was referred to the Department of Pediatric Dentistry, Yonsei University for avulsed upper left central incisor during endotracheal intubation. The purpose of this report is to emphasize the usefulness of mouth guard to prevent dental trauma when endotracheal intubation is needed for TCS patient.

TREACHER COLLINS SYNDROME : A CASE REPORT (Treacher Collins 증후군 환아의 증례보고)

  • Park, Ji-Hyun;Kim, Seung-Hae;Song, Je-Seon;Kim, Seong-Oh;Lee, Jae-Ho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.37 no.3
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    • pp.374-380
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    • 2010
  • Treacher Collins syndrome(TCS) is a rare, incurable condition occurring in approximately 1 of 25,000 to 50,000 births. It may occur as a spontaneous mutation out of genetically normal parents or it may be manifested as an autosomal dominant pattern. TCS is characterized by facial deformities such as, underdevelopment of the maxilla, mandible and zygoma, malocclusion, bilateral deformities of auricles, antimongoloid slant of the palpebral fissures. The syndrome is often associated with cleft lip and palate, ear malformations and hearing loss, short stature, and anomalies of the heart and skeleton. Respiratory difficulty associated with air way obstruction may also be observed, and there is considerable difficulty in airway management during general anesthesia. It is necessary that dentists provide safe dental treatments and guidelines to TCS patients by providing adequate understanding about the characteristics of the syndrome and proper ways of managements. The purpose of this study is to report the dental and medical characteristics of the patient who visited the Department of Pediatric Dentistry, Yonsei University for multiple dental caries treatment and to review the literatures of TCS.