A Histological Study on Several Implants for Augmentation Rhinoplasty in Mouse Calvarium

( Hyun Syeob Kim ),( Min Suk Kook ),( Hong Ju Park ),( Hee Kyun Oh ),( Hyung Seok Kim ) 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.2S

악골에 발생한 법랑아세포종의 임상적 연구

김현섭(Hyun-Syeob Kim),류재영(Jae-Young Ryu),유민기(Min-Gi Yu),서일영(Il-Young Seo),Uttom Kumar Shet,국민석(Min-Suk Kook),박홍주(Hong-Ju Park),유선열(Sun-Youl Ryu),최홍란(Hong-Ran Choi),오희균(Hee-Kyun Oh) 대한구강악안면외과학회 2007 대한구강악안면외과학회지 Vol.33 No.5

Ameloblastoma, a benign tumor of odontogenic type, represents 10% of all tumors of the jaw. It is localized in the mandible (80%) and in the maxilla(20%). In every case, the selection of the surgical treatment must consider some fundamental elements, including the age and general state of health the clinicopathological variant, and the localization and extent of the tumor. This study was invested the clinicopathological findings of 23 patients with ameloblastoma which had been diagnosed by biopsy during the period of 1987 to 2005 at Chonnam National University Hospital. And it contained the statistical analysis according to the treatment methods and the clinicopathological findings such as sex, age, location, chief complaints, duration, radiographic findings, histologic findings, treatment methods. The results obtained are were follows. The age of patient ranged from 10 to 91 years(means, 35.9 years) at biopsy. Thirteen(57%) of the 23 subjects were males, and 10(43%) were females. Twenty(87%) of the 23 ameloblastomas were located in the mandible. Swelling was the most common symptom and was experienced by 20(87%) patients. Radiographically, 11(48%) of the 23 tumors were unilocular with a well-demarcated border and 12(52%) were multilocular. The most common histologic pattern was plexiform and acanthomatous rather then follicular. Conservative treatment was performed 7 cases(30%), radical treatment 11 cases(48%), and combined treatment 5 cases(22%). Follow-up period ranged from 2.1 years to 22 years(mean 5.1 years). Based on the above results, surgical excision after marsupialization was found to be useful as a preliminary treatment of the large cystic ameloblastoma in children and adolescents. On the contrary, the lesion with a soap bubble appearance, the one with ineffective marsupialization was subjected to extensive excision of the tumor with a wide margin of normal bone.

Correction Of Microstomia By Bilateral Commissuroplasty Using "Over And Out" Buccal Mucosa Flaps: Report Of A Case

( Sun Youl Ryu ),( Hyun Syeob Kim ),( Hong Ju Park ) 대한악안면성형재건외과학회 2008 Maxillofacial Plastic Reconstructive Surgery Vol.30 No.2S

The Effect of the Recipient Site Depth and Diameter on The Implant Primary Stability in Pig`s Ribs

( Jin Su Lim ),( Hyun Syeob Kim ),( Min Suk Kook ),( Hong Ju Park ),( Hee Kyun Oh ) 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.2S

Radix Augmenta1ion Using Temporalis Fascia Graft

( Sun Youl Ryu ),( Jae Young Ryu ),( Hyun Syeob Kim ) 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.2S

쥐의 두개골에서 융비술에 사용되는 수종의 이식재에 대한 조직학적 연구

김현섭,국민석,박홍주,오희균,김형석,Kim, Hyun-Syeob,Kook, Min-Suk,Park, Hong-Ju,Oh, Hee-Kyun,Kim, Hyung-Seok 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.4

Purpose: This study was aimed to histologically evaluate $Silicone^{(R)}$, $Gore-tex^{(R)}$, $AlloDerm^{(R)}$, and $Medpor^{(R)}$ implants for augmentation rhinoplasty after graft in the subperiosteum of mural calvarium respectively. Materials and method: Twenty four male ICR mice were used. $Silicone^{(R)}$, $Gore-tex^{(R)}$, $AlloDerm^{(R)}$, and $Medpor^{(R)}$ were grafted respectively in the subperiosteum of frontal bone. Animals were sacrificed at 1 week, 4 week and 8 week after graft. Histological observation was performed after H&E staining. Results: All groups were healed without any extrusion of implant materials and inflammatory cell infiltration. In Silicone group, $Silicone^{(R)}$ was well enclosed by thin fibrous tissue at 1 week, which became thicker and stable at 4 weeks and 8 weeks. And there was no destruction or resorption of $Silicone^{(R)}$ In Gore-tex group, there was no destruction or resorption of $Gore-tex^{(R)}$. Thin fibrous tissue and cell infiltration from peripheral tissue were observed at 1 week, 4 weeks and 8 weeks. In AlloDerm group, $AlloDerm^{(R)}$ was enclosed by fibrous tissue. Cell infiltration was observed at 1 week, 4 weeks and 8 weeks. In Medpor group, there was no inflammation, destruction or resorption of $Medpor^{(R)}$ and it was contacted directly to the bone without interposition of fibrous tissue. Porous area was filled by bone or soft tissue. Conclusion: These results suggest that $Gore-tex^{(R)}$, $AlloDerm^{(R)}$, and $Medpor^{(R)}$ graft are more stable than $Silicone^{(R)}$ graft and that $Silicone^{(R)}$, $Gore-tex^{(R)}$, $AlloDerm^{(R)}$ are appropriate for graft on nasal tip and $Medpor^{(R)}$ is appropriate for graft on nasal dorsum.

하악 과두 골절에 대한 4년간의 후향적 임상연구

류재영(Jae-Young Ryu),김현섭(Hyun-Syeob Kim),박충열(Chung-Youl Park),국민석(Min-Suk Kook),박홍주(Hong-Ju Park),오희균(Hee-Kyun Oh) 대한구강악안면외과학회 2008 대한구강악안면외과학회지 Vol.34 No.3

The present study was performed to evaluate the function of the mandible according to the pattern of fracture and treatment methods of condylar fractures of the mandible and help operators in making a treatment plan. Sixty patients (average follow-up period was 7.8±9.4 months) who were treated for condylar fracture from June, 2002 to May, 2006 at the Department of Oral and Maxillofacial surgery, Chonnam National University Hospital were reviewed. The common causes of the condylar fracture were traffic accident and fall-down (35.0%). In concomitant injuries, laceration was 46.7% and the fracture of the mandibular symphysis was highest incidence (60.0%). The common site of the fracture was the condylar head (47.8%), followed by subcondyle (36.2%) and condylar neck (15.9%). Under 15 years old patients, the closed reduction was performed in 87.5% out of the patients. All of the condylar fragments were fixed to the mandible with titanium miniplates in cases of open reduction. The mean period of intermaxillary fixation (IMF) was 14.2±6.5 days in closed reduction and 10.0±4.2 days in open reduction. The old patient with bilateral condylar head fractures, who were treated by closed reduction with IMF for 3 weeks, showed the limitation of mandibular movements. But, there was no significant different results between open reduction and closed reduction with the respect of the Helkimo s mandibular mobility index and clinical dysfunction index (DI). Complications, such as fibrous ankylosis and resorption of the mandibular condyle, were not observed in all patients. These results suggest that the good results can be obtained by closed reduction with proper IMF periods and functional exercise in most condylar fractures of the mandible except severely displaced extracapsular fractures.

협점막 외전 피판을 이용한 양측성 구각성형술에 의한 소구증의 교정 1예

유선열,김현섭,박홍주,Ryu, Sun-Youl,Kim, Hyun-Syeob,Park, Hong-Ju 대한악안면성형재건외과학회 2008 Maxillofacial Plastic Reconstructive Surgery Vol.30 No.4

양측성 구순구개열을 가진 16세 여자 환자가 소구증과 구순열비변형으로 인하여 개구 제한과 심미적 문제를 주소로 내원하였다. 병력에서 구순성형술, 구개성형술 그리고 이차구순비성형술을 받았으며, 임상 소견에서 상순과 하순이 매우 작고 입술의 폭은 40 mm 정도로 짧았으며 최대 개구량은 20 mm였다. Converse의 협점막 외전 피판을 이용한 양측성 구각성형술을 시행하였으며 수술 후 입술의 폭은 60 mm로 증가하였다. 수술 1년 경과 후 입술의 폭은 54mm로 약 6 mm 정도 회귀되었고, 그 외에 별다른 문제점 없이 심미적, 기능적으로 양호한 결과를 보였다. 협점막 외전 피판을 이용한 양측성 구각성형술은 입술의 폭과 크기를 증가시켜주고 입술의 외관을 개선하여 소구증의 외과적 교정에 적절한 술식임을 알 수 있었다. Microstomia can be occurred as a result of direct injury to tissues such as chemical, thermal and electrical burns, and animal bites. It also may be secondary to contracture of burned perioral skin, or may result from scarring after reconstructive lip surgery. Narrowing of the oral aperture is not only disfiguring, but also limiting the oral access needed for introduction of food, insertion of dentures, oral hygiene, and dental treatment. Limited mouth opening may also interfere with mastication and speech. Few reports exist regarding correction of microstomia and reconstruction of the corners of the mouth. A 16-year-old girl with a bilateral cleft lip and palate presented with the limited mouth opening (approximately 20 mm), the esthetic problem due to the small lip, and the cleft lip-nasal deformity. The microstomia was corrected by bilateral commissuroplasty using "over and out" buccal mucosa flaps proposed by Converse. The intercommissure distance was increased from the preoperative 40 mm to the postoperative 60 mm. The one-year postoperative intercommissure distance was 54 mm, because the 6 mm relapse was occurred. The bilateral commissuroplasty using "over and out" buccal mucosa flap could increase the width and general size of the oral aperture and improve the lip appearance.

돼지 늑골에서 임플란트 수용부 깊이와 직경이 임플란트 일차 안정성에 미치는 효과

임진수,김현섭,국민석,박홍주,오희균,Lim, Jin-Su,Kim, Hyun-Syeob,Kook, Min-Suk,Park, Hong-Ju,Oh, Hee-Kyun 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.4

Purpose: This study was performed to compare and evaluate the effect of recipient site depths and diameters of the drills on the primary stability of implant in pig's ribs. Materials and methods: An intact pig's rib larger than 8 mm in width and 20 mm in height; RBM(resorbable blasting media) surface blasted ${\phi}3.75mm$ and 8.0 mm long USII Osstem Implants (Osstem Co., Korea) were used. To measure the primary stability, $Periotest^{(R)}$ (Simens AG, Germany) and $Osstell^{TM}$ (Model 6 Resonance Frequency Analyser: Integration Diagnostics Ltd., Sweden) were used. They were divided into 6 groups according to its recipient site formation method: D3H3, D3H5, D3H7, D3.3H3, D3.3H5, D3.3H7. Each group had, as indicated, 10 implants placed, and total 60 implants were used. The mean value was obtained by 4-time measurements each on mesial, distal, buccal, and lingual side perpendicular to the long axis of the implant using $Periotest^{(R)}$ and $Osstell^{TM}$. For statistical analysis one-way ANOVA was used to compare the mean value of each group, and the correlation between placement depths and the primary stability, and that of measuring instruments was analyzed using SPSS 12.0. Results: The primary stability of the implants increased as the placement depths increased (p<0.05), and showed a proportional relationship (p<0.01). The primary stability increased when the diameter of the recipient site was smaller than that of the implant but with no statistical significance. There was a strong correlation between $Osstell^{TM}$ and $Periotest^{(R)}$ (p<0.01). Conclusion: These results suggest that increasing the placement depth of implants enhances the primary stability of implant.

측두근막 이식을 이용한 비근증대술

유선열,류재영,김현섭,Ryu, Sun-Youl,Ryu, Jae-Young,Kim, Hyun-Syeob 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.2

측두근막은 비변형의 교정에 다양하게 이용될 수 있으며, 융비술에 단일 또는 복합 이식재로 사용될 수 있다. 측두근막 이식은 공여부가 눈에 띄지 않을 뿐만 아니라 코를 적절히 피개하고 외형을 좋게 하며 크기를 증대시켜 준다. 한편 비근부의 증대를 통해 코를 높이는 것은 물론 길이를 길게 할 수 있으며 넓은 내안각 사이의 외형을 개선해 줄 수 있다. 우리는 하악전돌증을 주소로 악교정수술을 받기 위해 내원한 2예의 남자 환자에서 계획된 악교정수술과 더불어 함몰된 비근부에 대하여 측두근막을 이용한 비근증대술을 시행하였다. 수술 후 치열안면변형의 해소는 물론 더욱 부드럽고 자연스럽게 개선된 안모를 관찰할 수 있었다. 환자의 측모도 더욱 개선되어 비근부가 높아졌을 뿐만 아니라 코의 길이가 길어진 효과도 얻을 수 있었다. 수술 후 비근부에서 주목할 만한 흡수 또는 변위 소견은 관찰되지 않았다. 함몰된 비근부에 대한 측두근막 이식을 이용한 비근증대술은 술식이 간단하면서도 비근부가 증대되고 코의 길이가 증가되는 적절한 수술방법임을 알 수 있었다. The temporalis fascia graft has been widely used in the correction of nasal deformities. The fascia can be used alone or combined for augmentation rhinoplasty. The fascia graft provides adequate coverage, contour, and bulk on the profile of the nose, as well as an inconspicuous donor site. A depressed radix area can be successfully corrected by the fascia graft. We present two cases of nasal radix augmentation by using temporalis fascia graft. Two male patients presented with the skeletal class III malocclusion and the depressed radix. A planned orthognathic surgery and the temporalis fascia graft to the radix were performed. The malocclusion and the profile of the patients were markedly improved after the operation. Not only the radix but also the nose was improved in its size and length. There was no noticeable resorption or displacement of the radix area at follow-up. The temporalis fascia graft could be an appropriate surgical technique in radix augmentation and nose lengthening.