이 논문은 2년 동안 경북대학병원 구강내과를 턱관절 질환을 주소로 내원한 환자 중에 과두흡수가 있는 환자들로서 자기공명영상, 파노라마, 측방횡두개상 그리고 측방 두부방사선 사진들을 모두 촬영한 34명의 환자들만 선택하여, 측방두부방사선 계측으로 과두흡수와 안면부 골격형태의 연관성을 한국인 정상 교합자들의 평균치와 비교 조사하였고, 전치부 개교합이 동반된 군과 개교합이 없는 군을 서로 비교하였으며, 또한 자기공명영상으로 과두흡수와 관절원판변위와의 관련성을 조사한 결과 과두흡수가 잘 발생될 수 있는 환자들은 다음과 같은 특징을 가졌다: (1) 34명중 1명만이 남자로 여자가 대부분이었다, (2) 연령대는 어느 연령에서나 발생가능하나 10대와 20대에서 발병률이 높았다, (3) 환자들은 높은 하악하연각과 높은 하악각을 가졌다. (4) 하악지의 높이는 작게 나타났으며, (5) 전악각 함요(antegonial notch)가 대체적으로 저명하였다, (6) 구치부 교합은 Angle's Class I 관계가 많았으나, ANB각도는 평균 5.54도로 하악의 후퇴를 나타내었다. (7) 과두흡수는 하악하연각이 낮은 경우에는 거의 발생하지 않았다, (8) 통계학적 유의한 차이는 없었으나 개교합이 동반된 군이 개교합이 없는 군보다 hyperdivergent한 골격형태를 가졌다, (9) 자기공명영상사진에서 과두흡수는 대부분 비정복성 관절원판전위와 연관되어 있었다. 수직적 골격성장이 큰 경우 관절원판 전방변위와 과두흡수의 원인이 될 수 있으리라 생각된다.
이 논문은 2년 동안 경북대학병원 구강내과를 턱관절 질환을 주소로 내원한 환자 중에 과두흡수가 있는 환자들로서 자기공명영상, 파노라마, 측방횡두개상 그리고 측방 두부방사선 사진들을 모두 촬영한 34명의 환자들만 선택하여, 측방두부방사선 계측으로 과두흡수와 안면부 골격형태의 연관성을 한국인 정상 교합자들의 평균치와 비교 조사하였고, 전치부 개교합이 동반된 군과 개교합이 없는 군을 서로 비교하였으며, 또한 자기공명영상으로 과두흡수와 관절원판변위와의 관련성을 조사한 결과 과두흡수가 잘 발생될 수 있는 환자들은 다음과 같은 특징을 가졌다: (1) 34명중 1명만이 남자로 여자가 대부분이었다, (2) 연령대는 어느 연령에서나 발생가능하나 10대와 20대에서 발병률이 높았다, (3) 환자들은 높은 하악하연각과 높은 하악각을 가졌다. (4) 하악지의 높이는 작게 나타났으며, (5) 전악각 함요(antegonial notch)가 대체적으로 저명하였다, (6) 구치부 교합은 Angle's Class I 관계가 많았으나, ANB각도는 평균 5.54도로 하악의 후퇴를 나타내었다. (7) 과두흡수는 하악하연각이 낮은 경우에는 거의 발생하지 않았다, (8) 통계학적 유의한 차이는 없었으나 개교합이 동반된 군이 개교합이 없는 군보다 hyperdivergent한 골격형태를 가졌다, (9) 자기공명영상사진에서 과두흡수는 대부분 비정복성 관절원판전위와 연관되어 있었다. 수직적 골격성장이 큰 경우 관절원판 전방변위와 과두흡수의 원인이 될 수 있으리라 생각된다.
Aims: The present study investigated the relationship between condylar resorption and craniofacial skeleton types(especially vertical relationships), the differences of craniofacial skeleton types between with open bite group and without open bite group, and the associations of anterior disc disloca...
Aims: The present study investigated the relationship between condylar resorption and craniofacial skeleton types(especially vertical relationships), the differences of craniofacial skeleton types between with open bite group and without open bite group, and the associations of anterior disc dislocation with or without reduction to condylar resorption with MRI. Patients selection and methods: Clinical examination, magnetic resonance imaging (MRI), panorama, lateral transcranial and lateral cephalometric radiographs in 34 patients with condylar resorption were used to investigate this relationship. Results and Conclusions: Patients with the following specific facial morphologic characteristics appear to be most susceptible to condylar resorption: (1) females were predominant, (2) patients' age ranged from 12 to 50 years old with a strong predominance for 2nd and 3rd decades, (3) patients had high mandibular plane angle and high gonial angle, (4) patients had decreased vertical height of the ramus, (5) patients had generally significant antegonial notch, (6) patients had predominance of Class I occlusal relationship with or without open bite but mandible was retruded as mean ANB 5.54 degrees, (7) condylar resorption rarely occurs in lower mandibular plane angle facial types, (8) although no statistically significant difference was found, the open bite group had a tendency more hyperdivergent skeletal pattern than the non open bite group, and (9) imaging demonstrates from small resorbing condyles to idiopathic condylar resorption and TMJ articular disc dislocations. Thus, morphologic features of patients with vertical discrepancies may represent a risk factor for the development of condylar resorption.
Aims: The present study investigated the relationship between condylar resorption and craniofacial skeleton types(especially vertical relationships), the differences of craniofacial skeleton types between with open bite group and without open bite group, and the associations of anterior disc dislocation with or without reduction to condylar resorption with MRI. Patients selection and methods: Clinical examination, magnetic resonance imaging (MRI), panorama, lateral transcranial and lateral cephalometric radiographs in 34 patients with condylar resorption were used to investigate this relationship. Results and Conclusions: Patients with the following specific facial morphologic characteristics appear to be most susceptible to condylar resorption: (1) females were predominant, (2) patients' age ranged from 12 to 50 years old with a strong predominance for 2nd and 3rd decades, (3) patients had high mandibular plane angle and high gonial angle, (4) patients had decreased vertical height of the ramus, (5) patients had generally significant antegonial notch, (6) patients had predominance of Class I occlusal relationship with or without open bite but mandible was retruded as mean ANB 5.54 degrees, (7) condylar resorption rarely occurs in lower mandibular plane angle facial types, (8) although no statistically significant difference was found, the open bite group had a tendency more hyperdivergent skeletal pattern than the non open bite group, and (9) imaging demonstrates from small resorbing condyles to idiopathic condylar resorption and TMJ articular disc dislocations. Thus, morphologic features of patients with vertical discrepancies may represent a risk factor for the development of condylar resorption.
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문제 정의
The purpose of this study was to investigate the associations of craniofacial skeleton types (especially vertical relationships) to condylar resorption by lateral cephalometric radiograph, the differences of craniofacial skeleton types between condylar resorption group with open bite and without open bite group, and the associations of anterior disc dislocation with or without reduction to condylar resorption with MRI.
제안 방법
The 34 patients with condylar resorption were to investigated the associations of craniofacial skeleton types and condylar resorption by use of lateral cephalometric radiograph and the associations of anterior disc dislocation with or without reduction in condylar resorption patients by use of MRI.
대상 데이터
Retrospectively 34 consecutive patients who were treated at the Department of Oral Medicine of the Kyungpook National University Hospital, from July 2004 to July 2006 evaluated. Among the patients with condylar resorption, the only patients who had records of magnetic resonance imaging (MRI), panorama, lateral transcranial and lateral cephalometric radiographs were selected.
The 34 patients for this study were selected. They consisted of 33 female and 1 male.
The patients associated with open bite were 20 of 34 patients. Condylar resorption group with open bite and without open bite group were compared (Table 4).
The 34 patients for this study were selected. They consisted of 33 female and 1 male. The mean age was 23.
데이터처리
0. The t-test was used for comparison between patient group and normal group, between open bite patient group and non open bite group. A difference with a P value less than .
성능/효과
The patients associated with open bite were 20 of 34 patients and no statistically significant difference was found between the open bite group and the non open bite group, but the mean FMA was higher in the open bite group; the mean values of total posterior facial height/ total anterior facial height(%) were lower. Therefore the open bite group had more hyperdivergent skeletal pattern than the non open bite group.
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