• 제목, 요약, 키워드: Acute malocclusion

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급성 부정교합과 턱관절장애 (Acute Malocclusion and Temporomandibular Disorders)

  • 변진석;이경은;서봉직
    • Journal of Oral Medicine and Pain
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    • v.32 no.1
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    • pp.121-128
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    • 2007
  • 환자가 내원하여 급성 부정교합을 호소한다면 치과의사는 여러가지 가능성에 대해서 생각해 볼 수 있다. 급성 부정교합은 주로 치아와 치아주변조직과 관련된 문제로 인해 발생할 수 있지만, 턱관절장애와 관련된 문제로 인해서도 발생할 수 있기에 임상가로 하여금 진단 및 관리에 어려움을 준다. 이에 저자는 외익돌근경련, 턱관절 원판후조직염 및 골관절염으로 발생한 급성 부정교합 환자를 경험하였기에 그 진단 및 치료과정을 보고하고자 한다.

Acute Malocclusion Caused by Articular Disc Perforation: A Case Report

  • Nam, Hyun;Shim, Young-Joo;Kang, Jin-Kyu
    • Journal of Oral Medicine and Pain
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    • v.43 no.4
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    • pp.142-146
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    • 2018
  • Patients with temporomandibular disorder often present with acute occlusal change and properly managed with conservative treatment. If such change is caused by unusual etiology, differential diagnosis may be challenged. This article describes the diagnosis of a patient exhibiting pain and acute posterior open bite on the ipsilateral side after chewing hard food. After initial conservative treatment failed to resolve the complaint, magnetic resonance imaging was ordered and confirmed partial perforation of articular disc. Disc perforation itself is usually chronic in nature, but sudden macrotrauma may also cause the disorder. However, occlusal discrepancy caused by disc perforation is rare and seldom reported. We present a case of acute malocclusion caused by disc perforation with a review of related literature.

Correction of Angle Class II division 1 malocclusion with a mandibular protraction appliances and multiloop edgewise archwire technique

  • Freitas, Benedito;Freitas, Heloiza;dos Santos, Pedro Cesar F.;Janson, Guilherme
    • 대한치과교정학회지
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    • v.44 no.5
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    • pp.268-277
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    • 2014
  • A Brazilian girl aged 14 years and 9 months presented with a chief complaint of protrusive teeth. She had a convex facial profile, extreme overjet, deep bite, lack of passive lip seal, acute nasolabial angle, and retrognathic mandible. Intraorally, she showed maxillary diastemas, slight mandibular incisor crowding, a small maxillary arch, 13-mm overjet, and 4-mm overbite. After the diagnosis of severe Angle Class II division 1 malocclusion, a mandibular protraction appliance was placed to correct the Class II relationships and multiloop edgewise archwires were used for finishing. Follow-up examinations revealed an improved facial profile, normal overjet and overbite, and good intercuspation. The patient was satisfied with her occlusion, smile, and facial appearance. The excellent results suggest that orthodontic camouflage by using a mandibular protraction appliance in combination with the multiloop edgewise archwire technique is an effective option for correcting Class II malocclusions in patients who refuse orthognathic surgery.

THE CLINICAL STUDY OF MANDIBULAR FRACTURE

  • 이동근;임창준
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.11 no.1
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    • pp.69-77
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    • 1989
  • This is a retrospective study on 219 patients with mandibular fracture. The patients were treated in the Dept. of Oral Maxillofacial Surgery of WON KWANG UNIV. HOSPITAL from Aug. 1, 1984 to Sept. 30. 1988. The results were as follows. 1. The mandibular fractures occured most frequently in the twenties(35%) and male were predominant (74.7%) than females. 2. The most frequent etiologic factor was traffic accident(34.3%). 3. The most common location of fracture was symphysis(37.1%). And angle(27.6%), condyle(25.7%), ramus(1.6%) were next in order of frequency. 4. In mandible fracture, they have an average 1.8 fracture line. 5. The use of plate & screw system were more increased in the comparison of each year. 6. Intermaxillary fixation period was more reduced from the concept of 6 weeks fixation, due to the use of Plate & screw system. 7. Postoperative acute wound infection was developed 9.6% in 219 mandibular fracture patients. The compression osteosynthesis was most common cause of acute wound infection than any other treatment method. 8. Postoperative malocclusion was developed 4% in 219 mandibular fracture. And the compression osteosynthesis was most common cause of malocclusion. 9. Acute wound infection was detailed by the approach method. The Intraoral & extraoral combination method was most common cause on acute infection and intraoral, extraoral approach method was next in order of frequency. 10. Normal mouth opening process was proportioned to IMF period. The short IMF period have a fast normal mouth opening process.

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정상교합자와 골격성 III급 부정교합자의 저작운동형태의 비교 (A Comparative Study on Chewing Movement in Normal Occlusion and Skeletal Class III Malocclusion)

  • 성기혁;성재현
    • 대한치과교정학회지
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    • v.27 no.5
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    • pp.801-813
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    • 1997
  • 정상교합자와 골격성 III급 부정교합자의 저작운동형태를 비교연구하기위해서 30명의 정상교합자와 20명의 골격성 III급 부정교합자를 대상으로 츄잉검을 사용하고 BioPAK system을 이용하여 전두면상에서 저작운동을 기록, 분석하였다. 각 개체마다 대표하는 저작경로를 정하여 저작폭경, 개구거리, 개구각, 페구각, 최대개구속도, 최대폐구속도를 알아보았다. 또 저작경로의 형태에 따라 특징적인 7가지 패턴으로 분류하여 다음의 결과를 얻었다. 1. 정상교합자군에 비해 골격성 III급 부정교합자군에서는 좀 더 다양하고 수직적인 저작양상을 나타내었다. 2. 저작폭경의 비교에서는 골격성 III급 부정교합자군이 정상교합자군에 비해 더 좁게 나타났다(p<0.01) 3. 개구거리에서는 골격성 III급 부정교합자군이 정상교합자군에 비해 더 작게 나타났으나 통계학적으로 유의성은 없었다(p>0.05). 4. 개구각과 폐구각에서는 골격성 III급 부정교합자군에서 정상교합자군보다 더욱 예각으로 나타났다(p<0.01). 5. 최대개구속도, 최대폐구속도에서는 정상교합자군에 비해 골격성 III급 부정교합자군에서 느리게 나타났으나 통계학적으로 유의성은 없었다(p>0.05). 6. 저작운동형태에 따른 분류에서 정상교합자군에서는 Type II가 73.4%로 가장 많은 비율을 차지하였으나, 골격성 III 급 부정교합자군에서는 Type III가 35.0%, Type II가 30.0%로 많은 비율을 차지하였다. 7. 저작운동형 태에 따른 분류에서 골격성 III급 부정교합자군에서는 Type IV(chopping type)가 25.0%로 정상교합자군 3.3%에 비해 많은 비율을 차지하였다.

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Septic arthritis of the temporomandibular joint: a case report

  • Yang, Sung-Won;Cho, Jin-Yong;Kim, Hyeon-Min
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.42 no.4
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    • pp.227-230
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    • 2016
  • Septic arthritis of the temporomandibular joint (TMJ) is a rare disease. The most common symptoms of this disease are acute malocclusion, limited mouth opening, swelling, and tenderness of affected TMJ. These symptoms are often confused with internal derangement of the articular disc, rheumatoid arthritis, retrodiscitis, or osteoarthritis. Therefore, differential diagnosis by image examination is required. Usually, antimicrobial treatment and surgical drainage by needle aspiration, arthroscopy, or arthrotomy are effective treatment approaches. In this study, a patient who was diagnosed with septic arthritis was treated with arthrocentesis and antibiotics without significant complications. We present a case report with a review of the literature.

경기도 지역 대학생의 측두하악장애증상에 관한 역학적 연구 (An Epidemiologic Study of Symptoms of Temporomandibular Disorders in Korean College Students)

  • 박혜숙
    • Journal of Oral Medicine and Pain
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    • v.32 no.1
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    • pp.91-104
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    • 2007
  • 측두하악장애증상과 이와 관련될 수 있는 기여요인들의 유병율을 알아보고자 경기도 지역 대학에 재학중인 학생 460명을 대상으로 2006년 9월부터 12월까지 설문조사를 실시하여 측두하악장애증상의 증상별 빈도, 성별, 연령별 양상에 대해 다음과 같은 결과를 얻었다. 1. 전체 대상자 중 한 가지 이상의 측두하악장애 주관적 증상을 가진 자는 80.6%였다. 2. 가장 높은 빈도를 보인 증상은 두통(45.7%)이고 그 다음이 관절음(43.5%)이었는데 두 가지 모두 남녀간의 유의차는 없었다. 3. 20대 남자 연령이 증가할수록 급성 부정교합 증상 비율이 낮았으며, 20대 여자 연령이 증가할수록 저작시나 말할 때의 악관절부 동통 증상의 발생빈도가 증가하였다. 4. 여자가 남자보다 높은 빈도를 나타낸 증상으로는 개구시 악관절부 동통, 저작시나 말할 때의 악관절부 동통, 턱 피곤함, 급성 부정교합 증상이 있고, 여자가 남자보다 높은 빈도를 나타낸 기여요인으로는 턱 괴기, 스트레스, 껌씹기, 불면증, 이악물기가 있다. 5. 기여요인과 측두하악장애의 주관적 증상은 관련이 있는 것으로 나타났는데 그 중에서도 이악물기, 불면증, 편측저작, 턱 괴기, 스트레스에서 유의성이 높았다. 6. 측두하악장애의 주관적 증상은 보통 성격과 관련성이 높았다.

Changes of lip morphology following mandibular setback surgery using 3D cone-beam computed tomography images

  • Paek, Seung Jae;Yoo, Ji Yong;Lee, Jang Won;Park, Won-Jong;Chee, Young Deok;Choi, Moon Gi;Choi, Eun Joo;Kwon, Kyung-Hwan
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.38
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    • pp.38.1-38.10
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    • 2016
  • Background: The aims of this study are to evaluate the lip morphology and change of lip commissure after mandibular setback surgery (MSS) for class III patients and analyze association between the amount of mandibular setback and change of lip morphology. Methods: The samples consisted of 14 class III patients treated with MSS using bilateral sagittal split ramus osteotomy. Lateral cephalogram and cone-beam CT were taken before and about 6 months after MSS. Changes in landmarks and variables were measured with 3D software program $Ondemand^{TM}$. Paired and independent t tests were performed for statistical analysis. Results: Landmarks in the mouth corner (cheilion, Ch) moved backward and downward (p < .005, p < .01). However, cheilion width was not statistically significantly changed. Landmark in labrale superius (Ls) was not altered significantly. Upper lip prominence angle (ChRt-Ls-$ChLt^{\circ}$) became acute. Landmarks in stomion (Stm), labrale inferius (Li) moved backward (p < .005, p < .001). Lower lip prominence angle (ChRt-Li-$ChLt^{\circ}$) became obtuse (p < .001). Height of the upper and lower lips was not altered significantly. Length of the upper lip vermilion was increased (p =< 0.01), and length of the lower lip vermilion was decreased (p < .05). Lip area on frontal view was not statistically significantly changed, but the upper lip area on lateral view was increased and change of the lower lip area decreased (p > .05, p < .005). On lateral view, upper lip prominent point (UP) moved downward and stomion moved backward and upward and the angle of Ls-UP-Stm ($^{\circ}$) was decreased. Lower lip prominent point (LP) moved backward and downward, and the angle of Stm-LP-Li ($^{\circ}$) was increased. Li moved backward. Finally, landmarks in the lower incisor tip (L1) moved backward and upward, but stomion moved downward. After surgery, lower incisor tip (L1) was positioned more superiorly than stomion (p < .05). There were significant associations between horizontal soft tissue and corresponding hard tissue. The posterior movement of L1 was related to statistically significantly about backward and downward movement of cheilion. Conclusions: The lip morphology of patients with dento-skeletal class III malocclusion shows a significant improvement after orthognathic surgery. Three-dimensional lip morphology changes in class III patients after MSS exhibited that cheilion moved backward and downward, upper lip projection angle became acute, lower lip projection angle became obtuse, change of upper lip area on lateral view was increased, change of lower lip area decreased, and morphology of lower lip was protruding. L1 was concerned with the lip tissue change in statistically significant way.