• Title/Summary/Keyword: jaws

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Gardner Syndrome Showing Multiple Osteomas in the Jaws

  • Kim, Yongsoo;Lee, Sun Jae;Baek, Jin-A;Ko, Seung-O;Leem, Dae-Ho
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.35 no.6
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    • pp.421-426
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    • 2013
  • Gardner syndrome, an autosomal dominant inherited condition, is a subtype of familial adenomatous polyposis. It causes lesions in bones, skin, and teeth, as well as multiple gastrointestinal polyps, which, if left untreated, become malignant. Because patients with colorectal cancer have a low survival rate, early diagnosis and treatment of Gardner syndrome is critical. Therefore, the characteristic lesions of Gardner disease that appear on the face, jaws, and oral cavity must be understood; these can be evaluated by oral and maxillofacial clinicians. This report describes a case that was diagnosed and treated earlier with the help of a routine oral and maxillofacial examination and has had a seemingly good prognosis so far.

Reconstruction of Defect after Treatment of Bisphosphonate-related Osteonecrois of the Jaw with Staged Iliac Bone Graft

  • Ahn, Kyo-Jin;Kim, Young-Kyun;Yun, Pil-Young
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.36 no.2
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    • pp.57-61
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    • 2014
  • Bisphosphonate is used widely for osteoporosis treatment, but a rising concern is the risk of osteonecrosis after long-term bisphosphonate use. Such cases are increasing, suggesting a need for research to prevent and treat bisphosphonate-related osteonecrosis of jaws. A 63-year-old female took bisphosphonate (Fosamax$^{(R)}$) for four years for treatment of osteoporosis and stopped medication two months ago because of unhealed wound. She was treated with marginal mandibulectomy maintaining the inferior border, and a metal plate was placed to prevent mandible fracture. Four months after the mandibulectomy, mandible reconstruction surgery using iliac bone and allograft was done. Six months after reconstruction, implant placement and treatment with an overdenture was done without complications. This study presents a case with a successful result.

Detection of Endosulfan from Oral Tissues of Acute Poisoned Rabbits (급성중독 가토의 치아 및 악골조직에서의 Endosulfan 검출에 관한 실험적 연구)

  • 조호현;김종열
    • Journal of Oral Medicine and Pain
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    • v.9 no.1
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    • pp.147-156
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    • 1984
  • In spite of the radical increase of chemical poisoning cases caused by prevalent of oranic chlorine like endosulfan, the study of detection of chemical poisoning has seldom been attempted; the study of poisoning in teeth, which is more secure physiochemically, and in all the oral tissues has been even less attempted. The author has administered endosulfan into the month of a rabbit, causing its death, and tried to detect endosulfan in the teeth, jaws, and oral tissues through forensic chemical and histopathological tests. The result obtained is as follows : 1. By thin layer chromatography, endosulfan was detected in the jews, dental hard tissues, dental pulp, blood, and the liver. 2. By gas chromatography, it was also detected in the jaws, dental hard tissues, dental pulp, blood, and the liver. 3. The congestion and hemorrhage in buccal mucosa, palatal mucosa, and dental pulp was detected.

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STUDIES ON THE POSITION OF CANINES, PREMOLARS AND MOLARS BY 45° OBLIQUE LATERAL CEPHALOGRAPHY (두부 X-선 규격촬영법(사위)에 의한 견치 소구치 대구치의 위치에 관한 연구)

  • Ahn Hyung Kyu
    • Journal of Korean Academy of Oral and Maxillofacial Radiology
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    • v.6 no.1
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    • pp.7-14
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    • 1976
  • This study was done using the 45° oblique lateral old, 18 males and 27 females, with normal occlusion, premolars and molars on upper and lower jaws. Axial inclination to nasal floor, occlusal plane and inter-axial inclination were examined. In addition the position of each tooth was examined in height and depth in upper and lower jaws. The results were obtained as follows; 1. The inclination of long axis of upper 1st premolar was most nearly perpendicular, upper canine was tilted mesially, and 2nd premolar and molars were tilted distally. 2. The inclination of long axis of lowers molar were tilted mesially. 3. There were no severe variation on the inter-axial inclination of canine to mandibular plane, and 2nd molar.

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Fabrication and Characteristics of In-Plane Type Micro Piezoelectric Micro Grippers with Pneumatic Lines for Biological Cells and Micro Parts Handling (바이오 셀 및 마이크로 부품 handling을 위한 pneumatic line을 갖는 in-plane 형 마이크로 압전 그리퍼 제조 및 특성)

  • Park J.S.;Park K.B.;Shin K.S;Moon C.W.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2006.05a
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    • pp.501-502
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    • 2006
  • In-plane type micro piezoelectric micro grippers with pneumatic lines for manipulation biological cells and micro parts were designed, fabricated, and characterized. Micro grippers were fabricated through the final micro-sanding process after wafer level bonding between the etched 4' Si wafer with pneumatic channels and 4' glass wafer. Displacements between two jaws of fabricated micro grippers were linearly increased with applying voltages to piezoelectric actuator. In the case of applying 80 V, the displacement between two jaws was $160{\mu}m$. Using fabricated micro grippers, manipulation tests for biological cell and micro parts with the sizes less than $100{\mu}m$ are in process.

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Bilateral inflammatory cysts of the jaw: report of an unusual case

  • Holla, Vidya A.;Chatra, Laxmikanth;Shenai, Prashanth;Rao, Prasanna Kumar;Veena, K.M.;Prabhu, Rachana Vishnudas
    • Imaging Science in Dentistry
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    • v.42 no.2
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    • pp.105-109
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    • 2012
  • Radicular cyst is the most common odontogenic cyst occurring in the jaws. The cyst is commonly found in relation to the maxillary anterior teeth in the third and fifth decade of life. Although multiple radicular cysts are not uncommon in the jaws, bilaterally symmetrical representation of these cysts is rare. Radiographs prior to extraction help in diagnosis of these cysts and thereby prevent further morbidities. We report a case of 16-year-old male patient who presented bilateral radicular cysts symmetrically in the mandible.

Solitary peripheral osteomas of the jaws

  • Franca, Talita Ribeiro Tenorio De;Gueiros, Luiz Alcino Monteiro;Castro, Jurema Freire Lisboa De;Catunda, Ivson;Leao, Jair Carneiro;Perez, Danyel Elias Da Cruz
    • Imaging Science in Dentistry
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    • v.42 no.2
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    • pp.99-103
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    • 2012
  • Osteoma is a benign osteogenic tumor composed of cancellous or compact bone, classified as peripheral, central, or extraskeletal. Peripheral osteomas are uncommon. Excluding the maxillary sinuses, the maxilla is a rare site for osteomas. The purpose of this report was to describe clinicopathological and radiological features of two peripheral osteomas occurring in the jaws, one located in the mandible and another in the edentulous maxillary alveolar ridge. The tumors were asymptomatic and were fully excised without any complications or recurrence. The lesions were submitted to histopathological analysis and diagnosed as peripheral osteoma, compact type.