• Title/Summary/Keyword: autotransplantation

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Autotransplantation of a Third Molar as a Lower Second Molar Combined with Orthognathic Surgery (대구치의 자가이식을 동반한 골격성 II급 부정교합의 악교정수술 치험례)

  • Choi, Yoon Jeong;Kim, Kyung-Ho;Chung, Chooryung J.
    • Korean Journal of Cleft Lip And Palate
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    • v.16 no.1
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    • pp.25-35
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    • 2013
  • We report the treatment of an adult Class II malocclusion with severe crowding and a hopeless lower second molar. According to the treatment plan, 4 premolars and 4 third molars were to be extracted for 2-jaw surgery. To replace the hopeless lower second molar, one upper third molar was successfully autotransplanted during the pre-surgical orthodontic treatment. Multiple teeth are frequently extracted for treatment purposes in adult surgical cases. Under precise diagnosis, the reuse of extracted teeth to replace missing teeth can be a successful alternative even in adult surgical patients.

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Eruption guidance for impacted canine (임상가를 위한 특집 2 - 매복견치의 맹출유도)

  • Lee, Nan-Young
    • The Journal of the Korean dental association
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    • v.50 no.6
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    • pp.312-321
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    • 2012
  • Permanent canine are very important teeth in point of function as well as esthetic. Therefore impaction of canines is a frequently encountered clinical problems. The incidence of impaction ranges between 1-3%. The cause of canine impaction can be result of ectopic position of tooth germ, defect of dental follicle, early loss or delayed exfoliation primary canine, space problem, supernumarary teeth, cyst, odontoma, Impaction frequently involves further complication such as root resorption of adjacent teeth, cyst formation and migration of the neighboring teeth. Various treatment modalities include extraction of primary canine, surgical opening and orthodontic traction, autotransplantation, surgical extraction of impacted canine.

Socket lifting을 이용한 자가치아 이식

  • Kim, Yeong-Un
    • The Journal of the Korean dental association
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    • v.40 no.9 s.400
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    • pp.697-702
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    • 2002
  • Tooth autotransplantation using socket lifting like this case had been seldom reported. So this report demonstrates a case using this technique which is frequently used for maxillary posterior implantation. Clinical considerations and pitfalls will be discussed.

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AUTOTRANSPLANTATION OF AN IMPACTED MAXILLARY PREMOLAR USING ENAMEL MATRIX DERIVATIVE: A CASE REPORT (역위 매복된 상악 소구치의 Enamel matrix derivative를 이용한 자가이식 치험례)

  • Oh, You-Hyang;Lee, Nan-Young;Lee, Chang-Seop;Lee, Sang-Ho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.30 no.3
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    • pp.471-476
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    • 2003
  • The success of autotransplantation depends on the viability of periodontal ligament in the transplanted tooth. Mechanical injury to periodontal tissues frequently results in dental root resorption and ankylosis, which leads to the failure of transplantation. Enamel matrix derivative(EMD) Which contains several enamel matrix protein (amelogenin family) has been reported to be effective in some periodontal therapies has been recently used to induce periodontal regeneration. EMD promotes proliferation of periodontal ligament cells and is suggested to be useful for transplantation. In this case, we report a clinical case of EMD application in the transplantation of an impacted and immature tooth of a 14 year-old girl to enhance the periodontal regeneration.

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RESTORATION OF MISSED MAXILLARY CENTRAL INCISOR USING AUTOTRANSPLANTATION OF MESIODENS : A CASE REPORT (정중과잉치의 자가이식을 통한 상실된 상악 중절치의 수복 : 증례보고)

  • Kim, Hye-Kyoung;Park, Ho-Won;Lee, Ju-Hyun;Seo, Hyun-Woo
    • Journal of the korean academy of Pediatric Dentistry
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    • v.34 no.3
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    • pp.519-525
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    • 2007
  • Supernumerary tooth is developed from overgrowth of dental laminar and is mainly observed in the maxillary anterior area, named 'mesiodens. Mesiodens cause many problems such as malposition of permanent anterior tooth, diastema, formation of cyst, and eruption to oral or nasal cavity. Extraction, therefore, is generally recommended choice of treatment. This case report describes that the patient is a 9 years and 8 months old boy, whose unilateral maxillary incisor was missing due to trauma, and he had a mesiodens. We practiced autotransplantation of the mesiodens to the missing maxillary central incisor area and then restored with prosthetics, substantially kept out alveolar bony resorption and provided esthetic appearance. Mesiodens was too small to be used as an abutment because its length is totally 14mm, so that poor prognosis was anticipated due to bad crown/root ratio. However, we observed clinically acceptable result during the observation period of 8 months after operation.

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Autotransplantation using the acellular dermal matrix seeded by periodontal ligament fibroblasts in minipig: histological evaluation as potential periodontal ligament substitutes (미니돼지에서 Acellular dermal matrix에 배양된 치주인대섬유모세포을 이용한 자가치아이식술: 치주인대로써의 잠재력에 대한 조직학적 평가)

  • Yu, Sang-Joun;Kim, Byung-Ock;Park, Joo-Cheol;Jang, Hyun-Seon
    • Journal of Periodontal and Implant Science
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    • v.37 no.1
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    • pp.53-64
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    • 2007
  • The aim of this study was to examine the possibility of periodontal ligament regeneration when autotransplantation was used by the periodontal ligament fibroblasts cultured on the acellular dermal matrix in teeth without a periodontal ligament. One minipig was used in this study. The mandibular and maxillary permanent incisors were ex-tracted for the culture of the periodontal ligament cells. The roots of the unextracted teeth were classified into a positive control group, in which the normal periodontal ligament was preserved. The roots of the extracted teeth were divided into the following two groups: The negative control group, in which the periodontal ligament had been removed and the acellular dermal matrix was not applied; and an experimental group, in which the periodontal ligament had been removed and periodontal ligament fibroblast cultured on an acellular dermal matrix was applied. The prepared teeth were transplanted, and completely submerged using physical barrier membranes. The animal was sacrificed 4 weeks after the autotransplant. The transplanted teeth were examined histologically. In this study, the periodontal ligament was normal in the positive control group, and ankylosis was discovered on the denuded root surface in the negative control group. Periodontal ligament-like connective tissue was found adjacent to the denuded root and the new cementum-like layer of hard tissue was formed in the experimental group. These results suggest that the periodontal ligament fibroblasts cultured on the acellular dermal matrix may play a role in regenerating the periodontal ligament-like tissue with new cememtum-like tissue formation.

Prognostic Factors Influencing Survival and Success Rates of Autotransplanted Maxillary Canine (자가이식한 상악 견치의 생존율과 성공률에 영향을 주는 예후 인자 연구)

  • Kim, Dong-Hyun;Hyun, Hong-Keun;Kim, Young-Jae;Jang, Ki-Taeg
    • Journal of the korean academy of Pediatric Dentistry
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    • v.44 no.3
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    • pp.317-326
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    • 2017
  • The aim of this study was to investigate the survival and success rates of autotransplanted maxillary canine at the artificially formed recipient socket and evaluate the factors that influence survival and success rates. A total of 28 children who had 37 impacted canines were reviewed over the mean observation time of 25.1 months. Tooth mobility, pathologic root resorption, vertical bone loss, periapical lesion and anklyosis of donor tooth were investigated clinically and radiographically. The survival rate was 100%. The success rate was 64.9%, because 13 teeth were evaluated as unsuccessful. Significant parameter in determining the success rate of autotransplantation was enlarged follicle size of donor tooth according to Cox proportional hazard regression model. The results provide information necessary for clinician to make a better treatment decision about autotransplantation at the artificially formed recipient socket.