• 제목/요약/키워드: Mandible

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하악골에 발생한 수복성 거대세포 육아종 1예 (A Case of Giant Cell Reparative Granuloma in the Mandible)

  • 박의현;박민우;백승국;정광윤
    • 대한두경부종양학회지
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    • 제29권1호
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    • pp.14-17
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    • 2013
  • Giant cell reparative granuloma(GCRG) is a non-neoplastic rapidly expanding and locally destructive tumor that occurs almost exclusively within the mandible and maxilla. A 58-year-old man, complained of a mass on the left infra-auricular area starting 2 months ago. The radiologic finding suggests a mass that originate from mandible, pathology diagnosed the lesion as a giant cell reparative granuloma. The tumor was surgically excised without complications. We report the case with a review of literature.

Voxel mesh 기법을 이용한 하악골의 유한요소모델링 (Finite element modeling of the mandible using voxel mesh method)

  • 이은택;오택열;변창환;이병권;유용석
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 1997년도 추계학술대회 논문집
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    • pp.600-604
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    • 1997
  • Knowledge of the complex biomechanical behavior of the human mandible is of great importance in various clinical situations. Various approaches can be used to evaluate the physical behavior of bone. In this study, we developed the voxel mesh program(Bionix) and generated FE models of mandible using Bionix and using handmade work and compared them with free vibration results derived from finite element analysis(FEA). The data of FE models based on DICOM File exported from Computed tomography(CT). Comparing the two models, we found a good correlation about mode type and natural frequency. The voxel based finite element mesh is a valid and accurate method to predict parameters of the complex biomechanical behavior of human mandibles.

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골다공증의 파노라마방사선사진상 진단학적 매개변수에 관한 연구 (THE STUDY ABOUT THE DIAGNOSTIC PARAMETERS OF OPSTEOPOROSIS ON PANORAMIC RADIOGRAPH)

  • 이용규
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제20권4호
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    • pp.279-283
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    • 1998
  • The osteoporosis is a disease that represents a reduction in the volume of bony tissue relative to whole bone volume. And mandible also may be affected. Such porotic mandible may influence the result of the surgery like dental implant surgery relating mandible. So, the author examed the panoramic view of 89 persons for finding the possibility of useful diagnostic parameters of osteoporosis. To know the correlationship between the condition of vertebra and mandible, bone marrow density of lumbar spine from 2nd to 4th, and the number of residual tooth, panoramic mandibular index (PMI), angular cortical bone thickness (ACT) and ramus cortical bone thickness (RCT) were compared. The result is that PMI and ACT have similar relative weak linear correlationship, RCT have very weak linear correlationship, the number of residual tooth have not linear correlationship.

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Lymphadenoid가 Hypertrophy된 아동과 정상아동간의 Tongue, Mandible 및 Hyoid bone의 위치비교에 관한 연구 (A COMPARATIVE STUDY OF THE TONGUE MANDIBLE AND HYOID BONE POSITION BETWEEN THE ADENOID HYPERTROPHIED CHILDREN AND THE NORMAL CHILDREN)

  • 이공근;유영규
    • 대한치과교정학회지
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    • 제16권2호
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    • pp.99-106
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    • 1986
  • The author studied 21 adenoid hypertrophied children and 50 normal children by the horizontal, vertical and angular measurements to analyze, the effects of the lymphadenoid hypertrophy to the tongue, mandible, and hyoid bone position. The results were as follows; 1. The tongue of the Adenoid hypertrophy children was positioned mon anterior and lower than that of the normal children. 2. The horizontal, vertical, and angular measurements of the mandible position were larger in the experimental group and especially ANS to ME, PNS to MP, PTM to MP, PP to MP, FOP to MP showed statistically significant difference. 3. The measurements of the hyoid bone position were also larger in the experimental group.

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Metastatic adenocarcinoma of the mandible

  • Hwang Eui-Hwan;Hwang Ji-Young;Lee Sang-Rae
    • Imaging Science in Dentistry
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    • 제34권4호
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    • pp.219-223
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    • 2004
  • Metastases to the jawbones are found predominantly in the mandible and are rare in relation to the overall spectrum of oral malignancy. Analysis of the literature shows that the most frequent primary sites are the breast, lung, kidney, thyroid, and prostate. Adenocarcinoma of the mandible, whether primary or metastatic, are usually difficult to diagnose clinically. We report a case illustrating the clinical, radiographic, and histologic findings of a metastatic lung adenocarcinoma of the anterior mandible in a 58-year-old male.

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구강 및 구인두암의 수술에 있어서 하악골 부분절제술에 대한 고찰 (Partial Mandibulectomy for Oral Cavity and Oropharyngeal Carcinoma)

  • 최은창;홍원표
    • 대한두경부종양학회지
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    • 제10권2호
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    • pp.163-170
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    • 1994
  • Segmental mandibulectomy causes severe functional disability and cosmetic problem. Many methods of reconstruction have been used but none of these procedures provides the ideal solution. There has been increased interest in the possibility of preserving a portion of the mandible and still carrying out a adequate tumor resection. We experienced four cases of marginal with sagittal mandibulectomy in patients with floor of mouth. buccal. and soft palate carcinoma, and sagittal mandibulectomy in 8 patients with tonsillar carcinoma and a case of marginal mandibulectomy in tonsillar cancer patient. In all cases mandible facing the tumor were successfully resected and repair of the mandible. postoperative facial contour were satisfactory. We think. that these sagittal procedures are oncologically sound in its removal of tumor. biomechanically secure and maximize postoperative rehabilitation while maintaining the normal contour of the face.

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Relapsed extranodal NK/T-cell lymphoma in the mandible, Nasal Type: a case report and review of the literatures

  • ;;;김성곤
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • 제37권4호
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    • pp.329-332
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    • 2011
  • Extranodal NK/T-cell lymphoma (NTCL), nasal type is rare and highly fatal malignant neoplasm. Early diagnosis and establishing treatment plan are very difficult. Furthermore, NTCL in the mandible is an extremely rare condition. The clinical significance of presented case is the very rare location of NTCL. To the best of author's knowledge, this is the first reported case of NTCL of the mandible in the literature.

The Transmandibular Implant System (THE TRANSMANDIBULAR IMPLANT SYSTEM)

  • 문홍석
    • 대한치과보철학회지
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    • 제35권3호
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    • pp.435-444
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    • 1997
  • Transmandibular implant system은 하악골이 심하게 흡수된 환자에게 특히 유용하게 사용할 수 있다. 또한 여러 문헌에서도 높은 성공률을 보이고 있다. 저자가 시행한 증례에서도 환자는 높은 만족감과 의치의 안정성 및 저작효율의 증대를 보였다. 하지만 성공적인 보철물의 제작을 위해서는 신중한 진단과 치료계획 및 위에서 열거한 여러 가지 고려사항들을 참고해야 한다.

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Distant metastasis of follicular thyroid carcinoma to the mandible: a rare case report

  • Jeon, Young-Tae;Kim, Chul-Hwan;Park, Sung-Min;Kim, Min-Kyoo
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • 제45권5호
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    • pp.294-298
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    • 2019
  • Treatment of metastatic carcinoma of the oral cavity can be a challenge due to its rarity. The current case report details metastatic carcinoma of the mandible originating from follicular thyroid carcinoma, which is the second most prevalent tumor of the thyroid. As the mandibular lesion developed, the primary thyroid lesion of thyroid. Here, we report a case of metastatic carcinoma of the mandible in a 67-year-old female that was treated with partial mandibulectomy and fibular free flap.

Effect of Stafne bone defect on the adjacent tooth: A review of the literature

  • Niknami, Mahdi;Parsa, Azin;Khodadadi, Zahra
    • Imaging Science in Dentistry
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    • 제52권2호
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    • pp.165-170
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    • 2022
  • Purpose: This report presents a case of an unusual and rare presentation of Stafne bone defect (SBD) with apical resorption extending from the lower right lateral incisor to the right first premolar. A systematic search of the current literature on cases where SBD affected the adjacent teeth was conducted. Materials and Methods: From 259 identified articles, 114 studies were examined, containing 12 individuals with a mean age of 41.58 years. Ten cases in the anterior mandible and 2 in the posterior mandible were found. Results: The results of SBD varied from apical blunting to severe root resorption, and some cases showed close apical contact with the lesion or involvement of the root without any effect. Conclusion: SBD is an unusual incidental finding in the anterior region of the mandible, and unexpected behavior of the lesion, such as root resorption, must be considered.