• Title/Summary/Keyword: 치조골 증대술

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Implant placement in severely atrophic mandible using alveolar ridge splitting procedure and small block bone graft: A case report of 4-year follow-up (심하게 위축된 하악 구치부에 치조제 분할술과 블록형 골이식술을 이용한 임플란트 식립: 4년 관찰 증례보고)

  • Kim, Na-Hong;Bang, Joo-Hyuk;Lee, Dong-Woon
    • Journal of the Korean Academy of Esthetic Dentistry
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    • v.28 no.2
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    • pp.64-73
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    • 2019
  • Various techniques have been developed, and the development of piezo electric devices have made it possible to widen the alveolar ridge even if the residual bone is dense or if there is a lack of cancellous bone between the cortical bones. In the operation of the mandibular posterior area, the flap is easily accessible to the ramus bone, from which high quality autogenous bone can be obtained, compared to other parts. A small autologous bone block can be used with particulated bone graft material using one screw for bone regeneration instead of a large autologous bone with two screws. The tapered implant design can minimize buccal bone fracture, even in severely atrophic mandibular areas. We report a case of 4 years following implant placement with ridge splitting and small autogenous bone graft in severly atrophic mandible. This report demonstrates a case of functional and aesthetic restoration in a patient through a collaboration.

Horizontal Ridge Augmentation using Ridge Expansion and Autogenous Tooth Bone Graft: A Case Report (치조능확장술과 자가치아골이식술을 이용한 치조능 수평증대술: 증례보고)

  • Kim, Young-Kyun;Yi, Yang-Jin
    • Journal of Dental Rehabilitation and Applied Science
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    • v.27 no.1
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    • pp.109-115
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    • 2011
  • Implants were placed after performing ridge expansion by inserting screws of gradually increasing thickness. Favorable clinical outcome was obtained. During surgery, buccal cortical plate fracture did not occur. Autogenous tooth bone graft material was grafted around the implant dehiscence defects and over the buccal cortical plate. The method involving the insertion of screws for ridge expansion is a successful and predictable technique for implant placement in narrow alveolar bone. Autogenous tooth bone graft material can be used for ridge augmentation and GBR.

Full mouth rehabilitation of fully edentulous patient with implant-supported fixed prosthesis preceding bone graft: A case report (전악 무치악 환자에서 골이식술을 선행한 임플란트 고정성 보철 수복 증례)

  • An, Ju-Nam;Lee, Jung-Jin;Seo, Jae-Min;Kim, Kyoung-A
    • The Journal of Korean Academy of Prosthodontics
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    • v.56 no.1
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    • pp.77-87
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    • 2018
  • Prosthetic treatment using implants in fully edentulous patients includes implant-supported fixed prosthesis, implant hybrid prosthesis, implant retained- or supported-over-denture and implant supported fixed prosthesis has advantages such as psychological stability, pronunciation. If an implant supported fixed prosthesis is planned, the implants should be placed in consideration of pronunciation, esthetics, and oral hygiene. For this, clinical and radiological diagnosis is indispensable. When placing the prosthetic driven implant at the site determined from the diagnosis, a sufficient amount of alveolar bone and soft tissue support are required. If these requirements found to be insufficient, a wide range of bone grafting should be performed in advance. In this case, a fully edentulous patient with severe alveolar bone resorption due to periodontal disease was treated with a full mouth rehabilitation using implant-supported fixed prosthesis preceding maxillary sinus graft and alveolar bone augmentation. We report this patient were satisfied with esthetic and function.

Esthetic implant restoration in the maxillary anterior missing area with palatal defect of the alveolar bone: a case report (구개부 치조골 결손을 보이는 상악 전치 상실부의 임플란트 심미보철수복: 증례보고)

  • Oh, Jae-Ho;Kang, Min-Gu;Lee, Jeong-Jin;Kim, Kyoung-A;Seo, Jae-Min
    • Journal of Dental Rehabilitation and Applied Science
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    • v.33 no.4
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    • pp.291-298
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    • 2017
  • It is challenging to produce esthetic implant restoration in the narrow anterior maxilla region where insufficient volume of alveolar bone could limit the angle and position of implant fixture, if preceding bone augmentation is not considered. Ideal angle and position of implant fixture placement should be established to reproduce harmonious emergence profile with marginal gingiva of implant prosthesis, bone augmentation considered to be preceded before implant placement occasionally. In this case, preceding bone augmentation has been operated before esthetic implant prosthesis in narrow anterior maxilla region. Preceded excessive bone augmentation in buccal area allowed proper angulation of implantation, which compensates unfavorable implant position. Provisional restorations were corrected during sufficient period to make harmonious level of marginal gingiva and interdental papilla. The definite restoration was fabricated using zirconia core based glass ceramic. Functionally and esthetically satisfactory results were obtained.

Histological Observations on Bone Healing with Bioactive Glass in Horizontal Ridge Augmentation;A Report of Four Cases (수평적 치조제증대술에 사용된 Bioactive glass의 골재생에 관한 조직학적 관찰;증례보고)

  • Park, Jin-Woo;Suh, Jo-Young
    • Journal of Periodontal and Implant Science
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    • v.36 no.3
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    • pp.601-611
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    • 2006
  • 임프란트 식립을 필요로 하는 환자의 수평적 치조제 결손의 증대를 위해 골유도재생술과 병용한 bioactive glass (BG) $(Biogran^{(R)})$ 이식의 골재생 양상을 각기 다른 치유기간을 부여한 4명의 환자에서 평가하였다. 6, 8, 10, 18개월의 치유기간 후 임프란트 식립부위에서 조직절편을 채득하여 골재생을 조직계측학적으로 평가하였다. 임프란트 식립을 위한 surgical reentry시 모든 이식부위는 임상적으로 명확한 수평적 치조제 폭경의 증가를 관찰할 수 있었다. 하지만 조직학적 분석결과 BG는 불량한 골전도성을 나타내었다. 6, 8개월의 치유기간후, 이식부위에서 신생골이 거의 관찰되지 않았으며(2.5%이하), 이식부와 기존 골의 경계부위에서 BG particle에 대한 신생골 성장과 결합양상 또는 관찰할 수 없었다. 10개월의 치유기간후 기존 골조직으로부터 성장한 신생골의 BG particle과의 직접적인 접촉양상을 일부 관찰할 수 있었다. 이식부는 13.2%의 광물화된 신생골조직을 보였고, 대부분의 BG particle은 결체조직으로 둘러싸여 있었다. 18개월의 치유기간이 부여된 환자의 조직절편에서 신생골은 이식부의 10.7%를 차지하여 비교적 낮은 신생골 형성양을 나타내었고, 이식부에 존재하는 잔존BG particle은 대부분은 결체조직으로, 일부분에서 광물화된 골조직으로 둘러싸여 있었다. 6, 8, 10, 18개월에서 잔존 BG particle양은 전체 이식부 면적에 대해서 각기 22.3%, 26.5%, 30.7%, 18.7%로 나타났다. 본 증례보고는 비록 한정적인 4명의 환자에서의 조직계측학적 평가결과이지만, 수평적 치조제 결손의 증대를 위해 골유도재생술과 병용한 bioactive glass이식은 불량한 골전도성으로 인해 효과적인 골재생을 위한 이식재로서는 적절하지 않을 수 있음을 나타낸다.