• 제목/요약/키워드: mandibular asymmetry

검색결과 207건 처리시간 0.031초

측두하악장애의 임상적 증상과 방사선적 소견과의 관계 (The Relationship between Clinical Sign and Radiographic Findings in Temporomandibular Disorders)

  • Byung-Il Park;Kyung-Soo Han
    • Journal of Oral Medicine and Pain
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    • 제14권1호
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    • pp.57-66
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    • 1989
  • 66 patients with temporomandibular disorders were selected for experimental group, and 45 normal subjects who were Dental students were selected for control group. Average age of experimental group was 30.5 years, Male to Female ratio was 2 : 3, and their age distribution were teen-ages to seventh decades. Transcranial radiography (TR) with Denar Accurad 100 was used for each group to get the values of width in joint spaces and to investigate the bony changes of articular surfaces and relative condylar position to articular fossa. In addition to TR, clinical interview and routine charting about amount of mandibular movements and occlusal variations were carried out in experimental group. The obtained results were as follows : 1. The mean values of joint space with in control group were 2.15mm to anterior, 2.98mm to superior and 2.29mm to posterior and the value of relative condylar position to the deepest portion of articular fossa was 0.21mm to anterior. In experimental group, those values were 2.01mm, 2.14mm 2.22mm and 0.12mm to posterior in sequence, respectively. Joint spaces in experimental group, therefore, were inclined to decreased, and relative condylar position was inclined to retrude. Joint space in control group showed symmetric condylar position, but in experimental group showed asymmetry. 2. Non-affected joints with no bony changes in experimental group showed the narrowest joint spaces which were thought to manifest the abnormal stress to non-affected side to dysfunctional state of contralateral affected joints. 3. Amount of mandibular movements in experimental group were within normal values in lateral movements and in protrusive movement but in opening movement with or without passive stretch, those were lower than normal values. Frequency of occlusal variation, for example, protrusive posterior contacts, open bite, median line shift to lateral side were inclined to increase with bony changes and with crepitus.

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악관절 강직증의 치험례 (THE CASES REPORT OF ANKYLOSIS)

  • 현영옥;강창희;노양호;천영두;김신헌;이희원
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제23권1호
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    • pp.95-102
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    • 2001
  • Temporomandibular ankylosis is defined as a situation in which the condyle is fused to the fossa by bone or fibrous tissue. Conditons such as trauma, infection, or systemic disease may predispose to various types of ankylosis, bringing about different levels of limitation in mandibular movement. Most patients with temporomandibular ankylosis are associated with limitation of maximal mouth opening, deviation of the chin toward the affected side, impaired occlusion, chronic pain, compromised oral hygiene, severe facial asymmetry & impeded mandibular molar eruption occurring in childhood. Several techniques to release ankylosis have been described in the literature, showing variable and often unsatisfactory results. The most frequently used operations are gap arthroplasty, interpositional arthroplasty, and exicision and joint reconstruction with autogenous or alloplastic materials. We have managed the two patients of TMJ ankylosis. They had previously TMJ surgery and we treated with gap arthroplasty & active physial therapy. We have obtained favorable results and report these cases with literatures review.

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Laterognathism의 술후 전방하악골상행지경사도 변화에 관한 정모두부방사선학적 연구 (The change of frontal ramal inclination (FRI) after orthognathic surgery with laterognathism: posteroanterior cephalometric study)

  • 유상진
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • 제37권1호
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    • pp.21-29
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    • 2011
  • Introduction: To compare the change in frontal ramal inclination (FRI) in laterognathism after orthognathic surgery. Materials and Methods: Twenty four patients (10 men, 14 women; mean age, $22.8{\pm}5.2$ years) with minimal facial canting (${\leq}$ 2 mm) and apparent menton deviation ($5.9{\pm}2.4\;mm$) who had been operated on to correct facial asymmetry and skeletal CIII malocclusion, were selected. On a preoperative posteroanterior (PA) cephalogram, the FRI of the deviated side and non deviated side, L1 deviation amounts and menton deviation amounts were measured. The FRI differences between both sides were compared, and the correlations between the measured deviated elements and the FRI differences were analyzed. On a postoperative PA cephalogram, the shifting amount of L1, shifting amount of L7 and FRI of both sides were measured, and the correlations between the shifting elements and the change in FRI were analyzed. Results: On the preoperative PA cephalogram, the FRI of the non deviated side was significantly greater than those of the deviated side. The differences in FRI, with a menton deviation amount showed a significant correlation. On the postoperative PA cephalogram, the FRI differences between the deviated and non deviated side were decreased significantly and mandibular transverse movement toward central position was noted. The mean shifting amounts of L7 were associated with the amount of change in the deviated side of FRI. Conclusion: Transverse shifting of the mandible through orthognathic surgery decreases the FRI difference, which showed laterognathism, and improves the facial contour.

안면골 변형을 동반한 림프관종의 치험례 (Treatment of Lymphangioma combined with Facial Bone Deformity)

  • 차상면;최희윤
    • 대한두경부종양학회지
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    • 제7권1호
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    • pp.24-34
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    • 1991
  • Lymphangioma is a benign, growth of lymphatic tissue that is present at birth or develops in early childhood, which may cause serious alterations in growth and developmemt. The problems with facial lymphangioma is usually releated directly to their size and to the area of the face which is involved. The lesions themselves may range from small, localized blemishes to huge facial masses involving both soft tissue and underlying bone and causing great distortion and asymmetry. The facial bones are seldom involved, but the natutal evolution of an individual lesion often cannot be accurately predicted when the child is first seen. Any changes in the underlying facial bone could be due either to a direct growth of the lesion into the bone, or secondary to pressure of the lesion growing outside the bone itself. A case of cystic lymphangioma extending from the neck to the tongue is reported. A six-year-old female was admitted because of swelling of the tongue. At that time, the tongue reportedly reached the extraoral size of 7x5x2.5cm and a soft, diffuse swelling of left anterior neck was revealed. The removal of cystic mass including left neck dissection and partial glossectomy were undertaken. The another case of lymphangioma is located on mandibular cheek. A twenty nine-year-old male was admitted because of palpable mass of the left mandibular area and fissure of palate. The radical excision of mass with mandibulectomy of body were undertuken. Thus we reported such a rare case and reviewed the lymphangioma.

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악관절 강직증 환자의 임상ㆍ방사선학적 연구 (Clinico-Radiological Study of Temporomandibular Ankylosis)

  • 최선원;안형규
    • 치과방사선
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    • 제14권1호
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    • pp.99-107
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    • 1984
  • The auther studied clinically and. radiologically 48 cases which had been diagnosed as TMJ ankylosis in SNUDH (1974-1984). The purpose of this study is to analyse clinical features of TMJ ankylosis and to evaluate the effect of TMJ ankylosis on the growth of the mandible. The obtained results were as follows: 1. Total 48 cases of TMJ ankylosis patients consist of 23 males and 25 females. 65 percent of all cases of TMJ ankylosis occurred in patients between 1 and 10 years of age. The awerage age at the onset of ankylosis was 11.7 and average duration at the time of examination was 11.7 years. 2. Unilateral akylosis (81.3%) was more frequent than bilateral ankylosis (18.7%). 3. Traum a (57.9%) and infection (21.2%) were main etiology. 4. Inability to open the mouth (78.3%) and facial asymmetry (17.4%) were main chief complaints. 5. Mandibular morphology through radiographic features. (a) In TMJ ankylosis patients the ramus length of the ankylosed side was shorter than that of the non-ankylosed side. Comparing with the centrol group, ramus length of the each side was shorter than normal value. (b) The partial body length of the ankylosed side was longer than that of the non-ankylosed side. Comparing with the control group, partial body length of the each side was longer than normal value. Partial body length was related with antegonial notch depth. (c) Ratio of upper and lower ramus length at the level of mandibular foramen was smaller in ankylosed side than in non-ankylosed side. (d) Antegonial notch depth and ramus posterior contour depth were deeper in ankylosed side than in non-ankylosed side and those of both sides were deeper than normal value. (e) Gonial angle in ankylosed side was larger than in non-ankylosed side and that in both sides was smaller than normal value.

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악안면 기형 환자들의 발현 양상, 원인 요소 및 외과적 교정 방법에 관한 역학적연구 (A RETROSPECTIVE STUDY ON THE CLINICAL MANEFESTATIONS, ETIOLOGIC FACTORS OR SURGICAL CORRECTION METHODS OF THE MAXILLOFACIAL DEFORMITY PATIENTS)

  • 현충환;임창준
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제19권3호
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    • pp.233-242
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    • 1997
  • Recently the goal of orthognathic surgery has been focused on esthetic improvement of the patients. Also early corrective surgery was favorable selected by most of the oral and maxillofacial surgeons. We should consider the etiologic factor of the patient's dentofacial deformities when treatment is planned, because this is the major factor in estimating the predictability or stability of result. The more researches were carried on the etiologic factors of the dentofacical deformities, The more possibility of the early surgical correction will be increased. The authors analyzed about etiologic factors and epidemiologic studies of the forth patients who had received the orthognathic surgery. The analyzed results were as follows: 1. The predilection ration between male and female was 17:23, and 32 patients (80%) of 40 patients were aged twenties. 2. 26patients(65%) complained estetic problems as well as functional problems. 10 patients(25%) complained only esthetic problems, and 4 of 40 patients complained only functional problems. 3. Mandibular prognathism was found to be done most frequently(25, 39%). Facial asymmetry (13, 20%) and angle hypertrophy were found to be next in sequence. 4. Sagittal split ramus ostetomy was done most frequently(27, 35%). Lefort I osteotomy(13, 17%), angle reduction (12,16%), and genioplasty(11, 15%) were done also. 5. The number of the cases due to nonspecific etiologic factor was 22(55%), that of cases due to inhertied tendency was 12(30%), that of cases due to congenital anomaly was 3(7.5%), and that of cases due to trauma was 3(7.5%). 6. The number of patients who got only maxilliary surgery was 2(5%), that of patients who got only mandibular surgery was 23(57.5%), and that of patients who got simultaneous two jaw surgery was 15(37.5%).

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유치열에서 scissors bite의 치료에 대한 증례보고 (TREATMENT OF THE SCISSORS BITE IN PRIMARY DENTITION : CASE REPORT)

  • 문성권;김정욱;이상훈;한세현;장기택
    • 대한소아치과학회지
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    • 제33권2호
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    • pp.311-316
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    • 2006
  • 중심교합위 상태에서 편측이나 양측으로 구치부의 상악치아가 하악치아의 협측으로 위치한 경우를 scissors bite라고 한다. 이런 부정교합은 상악의 폭이 크거나 하악의 폭이 좁은 경우 발생한다. 이로 인해 턱의 성장이 방해를 받고 악궁간 부조화를 유발하며 적절한 저작을 할 수 없게 된다. 따라서 scissors bite는 즉시 차단교정을 해야하며 일반적으로 scissors bite의 치료는 고정성 또는 가철성 장치를 이용하여 하악을 확장한다. 이에 저자는 scissors bite를 보이는 환아의 4세의 두 명의 남아에게 Schwarz장치를 이용하여 양호한 결과를 얻어 scissors bite의 치료법 제시에 도움이 되고자 보고하는 바이다.

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한국 성인에서 이하 두정 방사선 계측사진 분석 (Submentovertex cephalometrics in korean adults)

  • 남동석;서정훈;양원식;장영일
    • 대한치과교정학회지
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    • 제30권1호
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    • pp.1-7
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    • 2000
  • 교정 치료계획을 세우기 전에 부정교합에 기여하는 안면 비대칭의 정도를 정확히 평가하는 것은 무엇보다도 중요하다. 안면 비대칭의 진단은 주로 정모, 이하 두정, 두정 이하 방사선 사진이 이용되고 있다. 이중 이하 두정 방사선 사진은 반복재현성이 벌어지고 연구자료와 적절한 분석방법이 없다는 이유로 많이 사용되지 않고 있다. 이에 이 연구의 목적은 교정환자나 악교정 수술을 요하는 환자의 치료를 위하여 임상적으로 이용할 수 있는 이하 두정 방사선 계측사진의 분석방법을 개발하고 한국 성인에서의 정상치를 얻는데 있다. 연구 대상은 조화를 이루고 균형 잡힌 안모를 가진 교정치료 경험이 없는 40명의 성인을 대상으로 하였으며, 이하 두정 방사선 사진을 촬영하여 2개의 각도계측 항목과 9개의 선 계측항목을 측정하였다. 이하 두정 방사선 사진 분석에서 정상인에서 하악체의 길이는 좌, 우측 차이를 발견할 수 없었으나 정모, 측모 방사선사진의 계측 값과는 큰 차이를 보여, 비대칭의 절대적 양의 측정에는 어느 정도 한계가 있다. 기준선에 대한 좌, 우측 비교는 기준선을 설정하는 방법에 따라 큰 차이를 보였다. 과두의 위치 평가는 f. spinosum을 연결한 선의 수직이등분선을 정중선으로 사용하는 것이 가장 작은 편차를 보였으며, 상, 하악의 skeletal midline과 dental midline의 일치 여부 등을 판단할 때는 crista gli와 anterior process of atlas와 같이 midsagittal line 상에 위치하는 구조물을 이용하여 정중선을 설정하는 것이 가장 작은 편차를 보였다. 그리고 하악 과두 및 하악체의 형태이상을 관찰하는데는 매우 높은 진단적 가치를 가지고 있다. 그러므로 이하 두정방사선사진의 한계를 정확히 이해하고 정모, 측모 두부방사선사진과 함께 비대칭 분석에 이용한다면 보다 정확하게 비대칭 부위와 정도를 측정하는데 도움이 될 것이다.

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영구치의 치아크기에 관한 연구 (A STUDY ON THE SIZE OF THE PERMANENT TEETH)

  • 백병주;박정렬;김재곤;이두철
    • 대한소아치과학회지
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    • 제30권3호
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    • pp.502-509
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    • 2003
  • 전북대학교에 재학중인 학생 800명을 대상으로 구강 검사를 시행하여 정상교합자로 판단되는 86명(남자 43명, 여자 43명, 평균나이 22.2세)의 석고모형을 채득하여 분석한 결과 다음과 같은 결론을 얻었다. 1. 계측자내 오차는 순(협)설 치관 직경에서 상악 측절치가, 근원심 치관 직경에서는 상악 제 1대구치, 상악 제2대구치에서 다소 큰 값을 나타내었다. 평균 계측 오차는 순(협)설 치관 직경 측정은 0.051mm, 근원심 치관 직경 측정은 0.083mm 였다. 2. 좌우측 계측치 간의 차이는 순(협)설 치관 직경에서 평균 0.030mm, 근원심 치관 직경에서 평균 0.037mm를 보였으며, 통계학적으로 좌우측 계측치간의 유의한 차이는 없었다. 3. 영구치의 순(협)설 및 근원심 치관 직경은 전체 영구치에서 남자가 여자보다 컸다. 통계학적으로 유의성이 있는 치아는 순(협)설 치관 직경에서 상악 측절치, 상악 견치, 상악 제2소구치, 상악 제1대구치 상악 제2대구치, 하악 중절치, 하악견치, 하악 제2소구치, 하악 제1대구치 등이었고, 근원심 치관 직경에서 상악 중절치, 상악견치, 하악 견치, 하악 제1대구치 등이었다. 4. 남녀의 성차가 가장 인정되는 치아는 순(협)설 치관 직경에서는 상악 측절치, 근원심 치관 직경에서는 하악 견치였다. 5. Crown index는 남녀간에 비슷한 값을 보였고, Crown module과 Crown area는 모든 값에서 남자의 계측치가 컸다. 순(설)측 치관 직경값과 근원심 치관 직경값의 곱으로 표현되는 Crown area는 상악 제 1소구치, 하악 측절치, 하악 제 1소구치, 하악 2제소구치, 하악 제2대구치를 제외한 모든 치아에서 남녀간 차이에 통계학적 유의성이 있었다.(p<0.05)., 저염의 확산 폭이 약 10 km정도 증가하는 것으로 나타났고, 외해에 있어서 저염수는 남서풍에 의해서는 남동방향으로 그리고 북서풍에 의해서는 남서방향으로 퍼져나가는 양상을 보였다. 양쯔강에서 유출되는 평균적인 담수량에 의한 관성력과 조류의 힘만으로는 저염수가 제주도까지 도달하는 것은 힘들겠지만, 바람장과 북상하는 난류의 흐름이 합쳐질 때는 충분히 제주도 인근 해역까지 그 영향을 미칠 수 있을 것으로 예측되었다.수가 낮아지고, 소수 기회종의 우점도가 높아진 것으로 보인다.의 표면양상이 관찰되었고, 군간 별다른 차이가 없었다. 즉, 활성형 BR인 CS은 $C_{27}-BRs$, $C_{28}-BRs$의 생합성 과정뿐만 아니라 $C_{29}-BRs$의 생합성 과정을 통하여 생성되는 과정이 식물체내에 존재함을 확인 할 수 있었다.한 one-bottle 접착 시스템과 통계학적으로 유의한 차이를 보이지 않았다.y tissue layer thinning은 3 군모두에서 관찰되었고 항암 3 일군이 가장 심하게 나타났다. 이상의 실험결과를 보면 술전 항암제투여가 초기에 시행한 경우에는 조직의 치유에 초기 5 일정도까지는 영향을 미치나 7 일이 지나면 정상범주로 회복함을 알수 있었고 실험결과 항암제 투여후 3 일째 피판 형성한 군에서 피판치유가 늦어진 것으로 관찰되어 인체에서 항암 투여후 수술시기는 인체면역계가 회복하는 시기를 3주이상 경과후 적어도 4주째 수술시기를 정하는 것이 유리하리라 생각되었다.한 복합레진은 개발의 초기단계이며, 물성의 증가를 위한 연구가 필요할 것으로 사료된다.또 다른 약물인 glycyrrhetinic acid($100{\mu}M$)도 CCh 자극으로

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Condylar Hyperplasia with Long-standing Temporomandibular Joint Dislocation

  • Kim, Il-Kyu;Cho, Hyun-Young;Jung, Bum-Sang;Pae, Sang-Pill;Cho, Hyun-Woo;Seo, Ji-Hoon
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제36권1호
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    • pp.16-20
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    • 2014
  • Mandibular condylar hyperplasia is an uncommon condition of excessive unilateral growth of the condyle causing facial asymmetry and occlusal alterations. The etiology of condylar hyperplasia is unclear, but several factors are suspected, including previous trauma, hormonal disturbances, and abnormal functional loadings. Acute or chronic recurrent dislocation of temporomandibular joint (TMJ) is common, but long-standing dislocation is rare. We present two cases of the exophytic condylar hyperplasia that lasted for over 20 years with TMJ dislocation. In both cases, we performed a condyloplasty to restore normal occlusion and facial symmetry, with satisfactory results.