• 대한치주과학회:학술대회논문집
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• 대한치주과학회 1998년도 제38회 종합학술대회 연제초록
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• pp.67-68
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• 1998

• 대한치주과학회:학술대회논문집
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• 대한치주과학회 2003년도 제43회 종합학술대회 연제초록
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• pp.142-142
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• 2003

• Journal of Periodontal and Implant Science
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• 제43권2호
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• pp.64-71
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• 2013

Purpose: The objective of this study was to elucidate the role of collagen membranes (CMs) when used in conjunction with bovine hydroxyapatite particles incorporated with collagen matrix (BHC) for lateral onlay grafts in dogs. Methods: The first, second, and third premolars in the right maxilla of mongrel dogs (n=5) were extracted. After 2 months of healing, two BHC blocks ($4mm{\times}4mm{\times}5mm$) were placed on the buccal ridge, one with and one without the coverage by a CM. The animals were sacrificed after 8 weeks for histometric analysis. Results: The collagen network of the membranes remained and served as a barrier. The quantity and quality of bone regeneration were all significantly greater in the membrane group than in the no-membrane group (P<0.05). Conclusions: The use of barrier membranes in lateral onlay grafts leads to superior new bone formation and bone quality compared with bone graft alone.

• 대한치과보존학회:학술대회논문집
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• 대한치과보존학회 2007년도 Spring Scientific Meeting(the 127th) of Korean Academy if Conservative Dentistry
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• pp.295-295
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• 2007

• 대한치과보존학회:학술대회논문집
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• 대한치과보존학회 2006년도 Spring Scientific Meeting(the 125th) of Korean Academy of Conservative Dentistry
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• pp.247-247
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• 2006

• Archives of Plastic Surgery
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• 제32권4호
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• pp.516-520
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• 2005

Multilayered cartilage graft has been clinically used at tip plasty, total ear reconstruction, and cleft lip nasal deformities. Perichondrial flap or a free perichondrium has been also commonly used for induction of neocartilage. However, the influence of perichondrium on multilayered cartilage graft to strength and growth rate is still unknown. The purpose of this study was to compare the strength and growth rate of different multilayered cartilage graft and to present the most ideal model of multilayered cartilage graft. Twenty New-zealand white rabbit were used. Triple layers of cartilage grafts with various perichondrium were inserted into six separate pockets in paravertebral region of rabbits. The grafts were grossly and microscopically observed on 8 and 16 weeks after grafting. On gross observation, the grafts showed marked enlargement of three layers of cartilage grafts with perichondrium compare with three layers of cartilage grafts without perichondrium In histologic examination, the number of PCNA-labelled cells were significantly high on three layers of cartilage grafts with perichondrium. In conclusion, this study suggested that triple-layer graft of cartilage grafts with perichondrium on the outside of triple-layer graft has strength and an effect on chondrogenetic induction by the perichondrium.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제12권2호
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• pp.69-81
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• 1990

Classification of facial asymmetry has not been yet well-organized because of their variety on etiologic factors, involved sites and clinical expressions. And surgical treatments are also variable and depend upon their causes and clinical abnormalities. This is a case report on surgical experiences of two patients who had severe facial asymmetry and could not treated pre-surgical orthodontics before surgery. One patient was belong to hemifacial microsomia and another was a very unusual complex type related to unilateral condylar hyperplasia, unilateral macrognathia and unilateral mandibular hypoplasia. The authors used a simultaneous two-jaw surgery, bone shaving and onlay-type bone graft in former case, and a simultaneous two-jaw surgery, condylectomy, bone shaving and only-type bone graft in latter case. In two cases, immediate post-operative results in function and esthetics were excellent, however, progressive resorption of onlay-type bone grafts have been noticed.

• The Journal of Advanced Prosthodontics
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• 제3권2호
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• pp.96-100
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• 2011

An 18-year-old male presented severe hypodontia due to hypohidrotic ectodermal dysplasia was treated with Le Fort I maxillary osteotomy with simultaneous sinus floor augmentation using the mixture of cortical autogenous bone graft harvested from iliac crest and organic Bio-Oss to position the maxilla in a right occlusal plane with respect to the mandible, and to construct adequate bone volume at posterior maxilla allowing proper implant placement. Due to the poor bone quality at other sites, ridge augmentation with onlay graft was done to construct adequate bone volume allowing proper implant placement, using tissue harvested from the iliac bone. Seven implants were placed in the maxilla and 7 implants were inserted in the mandible and screw-retained metal ceramic FPDs were fabricated. The two year follow up data showed that dental implants should be considered as a good treatment modality for patients with ectodermal dysplasia.

• 대한정형외과학회지
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• 제56권1호
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• pp.42-50
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• 2021

목적: 종양인공관절 주위 골절은 안정된 고정의 어려움과 골유합 후에도 골질 약화로 해리 및 재골절 위험이 많다. 피질골 지주 중첩 동종골 이식술을 종양인공관절 주위 골절에 적용하면 내고정도 쉽고, 골유합 기간도 단축되며, 합병증도 줄일 수 있을 것이라고 생각하였다. 본 연구는 종양인공관절 주위 골절 27예(30 골절)의 골절의 양상과 치료 후 재건 술식에 따른 생존율 및 합병증, 중첩 동종골 이식술 추가 여부에 따라 골유합 기간 및 기능적 결과가 차이가 있는지 분석하였다. 대상 및 방법: 골절 치료 시 판형 동종골 이식을 한 군 16예와 시행하지 않은 군 14예를 비교하였다. 분석항목은 종양인공관절 치환술부터 골절까지 기간, 골절의 양상, 골유합 기간 차이, 합병증, 및 기능적 결과를 기술하였다. 결과: 골절 양상은 unified classification system (UCS) B형이 21예(70.0%, 21/30)로 가장 많았으며 그 중 B1이 14예(46.7%, 14/30), B2가 1예(3.4%, 1/30), B3가 6예(20.0%, 6/30)였고 C형이 9예(30.0%, 9/30)였다. Kaplan-Meier 법에 의한 30 재건 부위의 5년, 10년 생존율은 각각 84.5%±4.18%, 42.2%±7.83%였다. 전체 30예의 골유합 기간은 평균 5.1개월(범위, 2.0-11.2개월)이었다. 동종골 이식군은 평균 3.5개월(범위, 2.0-6.26개월)로 고식적 고정군의 평균 7.2개월(범위, 4.0-11.2개월)보다 짧았다(p<0.0001). 최종 기능평가상 동종골 이식군은 평균 26.1점으로 고식적 고정군의 평균 20.9점보다 높았다(p<0.0001). 합병증은 4예로 모두 동종골을 사용하지 않은 군에서 있었다. 결론: 종양인공관절 주위 골절은 드물고 골유합도 비교적 잘 이루어지나 유합 후 합병증 최소화가 중요하다. 판형 중첩 동종골 이식술은 골유합 기간을 단축, 골질 증가, 해리위험성 감소 효과가 있으며 종양인공관절 주위 골절에 유용한 방법이다.

• Archives of Plastic Surgery
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• 제35권4호
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• pp.431-438
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• 2008

Purpose: The common deformity after the correction of unilateral cleft lip nasal deformity is nasal asymmetry, and it is caused by the hypoplasia of the pyriform aperture. To correct this, many procedures have been applied, but still many problems are present. Authors performed the inlay and onlay insertion of porous high density polyethylene sheet(1 mm thickness $Medpor{(R)}$ sheet) in the hypoplastic pyriform margin of cleft side and obtained satisfactory results. Methods: 11 cases were performed and the mean follow up period was 15.1 months. Their mean age was 23.6 years. Under general anesthesia, bilateral pyriform margin was exposed. $Medpor{(R)}$ sheets in "match stick" like shaped were inlay inserted, and kidney shaped were onlay inserted fixating with two 6 mm titanium screws. After the surgery, the results was evaluated by photogrammetric analysis. On the basal view, the distance from the subalare and labiale superius' to the transverse baseline connecting the both cheilions was measured from the cleft side and the non-cleft side. Then, the postoperative symmetry was assessed by obtaining the cleft side against the non-cleft side as proportion index, defined as lateral and medial upper lip contour index. Results: There were 2 infections. The cause was because the inserted implant was too long and thus protruded to the base of nasal cavity. The lateral upper lip contour index was from 95.49 to 103.27, and medial upper lip contour index was from 90.92 to 100.49, it was statistically increased, and thus the symmetry was improved. However clinically mild depression remained at nostril floor. Conclusion: Authors performed porous high density polyethylene sheet inlay and onlay insertion for the hypoplasia of the pyriform margin in unilateral cleft lip nasal deformity. It was found that depressed pyriform margin and upper lip were corrected effectively except for the nostril floor, for which an additional soft tissue augmentation would be necessary. The inlay insertion has risk of protrusion, thus the guideline of the use of artificial prosthesis should be observed strictly.