• 제목/요약/키워드: Lengthening

검색결과 351건 처리시간 0.026초

Bardach씨 술식을 통한 이차성 구순열비변형의 교정 (Correction of the secondary nasal deformity using Bardach' s technique)

  • 김수관
    • 대한구순구개열학회지
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    • 제2권1_2호
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    • pp.23-28
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    • 1999
  • The author presents Bardach' s technique for the residual unilateral cleft lip nasal deformity, The key to a successful and stable correction of the nasal deformity is to lengthen the columella on the cleft side and to mobilize alar cartilage from its surrounding tissue, creating a symmetric shape and length, The major advantages of the technique are lengthening of the cleft columella and creation of a symmetric and well-projected nasal tip.

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전치부 심미치주성형술 (Periodontal plastic surgery for anterior esthetics)

  • 이용무
    • 대한치과의사협회지
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    • 제48권12호
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    • pp.880-888
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    • 2010
  • Periodontal disease, trauma, deformity of tooth can jeopardize the esthetics of oral and maxillo-facial region. Moreover, increasing the demand and concern about the esthetics, clinicians should place high value on esthetics during periodontal treatment. Analysis of various anatomical considerations; lip line, shape and location of marginal gingiva, and biologic width; and diagnosis should be performed prior to periodontal plastic surgery.

공작기계 기술의 현재와 미래(17) (Machine Tool Technology; The Present and the Future(17))

  • 강철희
    • 한국정밀공학회지
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    • 제13권8호
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    • pp.13-27
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    • 1996
  • 소성가공이란 원재료를 소성변형(Plastic deformation)을 통해서 고체의 제품을 만드는 가공법이다. 가공중에 물체의 질량과 체적에는 크게 변화가 없다. 소성 가공중 주응력이 어떻게 작용하느냐에 따라서 소성가공을 여러가지로 분류하고 있다. 즉, Metal Forming은 다음과 같이 분류할 수 있다. 1) Compound Forming에는, Rolling, Free forming, Die forming, Stamping, Pressing 2) Tension compression forming에는, Drawing, Deep-drawing, Rimming, Spinning, Bulge forming 3) Tension forming에는 Lengthening, Widning, Deepening 4) Bending에는 Bending with linear tool motion, Bending with rotary tool motion 5) Thrust forming에는 Swaging, Twisting이 있다.

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누두흉의 수술 교정 -8예 보고- (Surgical correction of funnel chest (8 cases))

  • 이양행;우종수;조광현
    • Journal of Chest Surgery
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    • 제19권4호
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    • pp.707-714
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    • 1986
  • Funnel chest is the most common deformity of the sternum. It is characterized by a funnel shaped depression of the sternum with sharp angulation and lengthening of the costal cartilages, with the result that the cartilages point posteriorly. We have experienced with eight cases of funnel chest for 2 years recently, and they were corrected by the method of Ravitch operation with or without Kirschner`s wire. The postoperative course was uneventful. And now we report these with literature review.

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토양에서 분리된 Cocobacilli B-17균의 Plasmid가 결정하는 Cadmium내성 (Plasmid-Determined Cadmium Resistance in Cocobacilli Strain B-17 Isolated from Soil.)

  • 방병호
    • 한국식품영양학회지
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    • 제1권2호
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    • pp.64-67
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    • 1988
  • Cadmium resistant cocobacillus B-17 from soil was tolerated up to 1600ug/ml of cadmium at agar plate and the strain B-17 was able to grow at 600ug/ml of cadmium at liquid medium after the lag phase being prolonged with lengthening culture time. Optimal pH of the strain was shown at pH7.0. The elimination frequency of cadmium resistance by 10ug/ml of acriflavin was 28%, and by 20ug/ml of ethidium bromide was 47%, respectively.

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Effect of Changes in Vocal Fold Tension on Mucosal Wave

  • Yumoto, Eiji
    • 대한음성언어의학회:학술대회논문집
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    • 대한음성언어의학회 1998년도 제10회 학술대회 심포지움
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    • pp.210-210
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    • 1998
  • Vocal fold vibration is essentially the propagation of a mucosal wave, starting from the lower surface of the vocal fold. The mucosal upheaval (MU), where the mucosal wave starts and propagates upward, appears only when the vocal fold vibrates. We investigated the location of the mucosal upheaval in response In variations in vocal fold tension. Vibrations were elicited under three conditions: during bilateral thyroarytenoid (TA) muscle contraction, without TA muscle contraction and during vocal fold lengthening. TA muscle contraction was obtained by direct electrical stimulation of the muscle. The vocal fold was lengthened by cricothyroid (omitted)

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하악 과두부에 발생한 골연골종의 치험례 (OSTEOCHONDROMA OF THE MANDIBULAR CONDYLE: A CASE REPORT)

  • 김민철;민성윤;주범기;허종기;김형곤;박광호
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제27권3호
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    • pp.283-287
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    • 2005
  • Osteochondroma is one of the most common benign tumors of the axial skeleton, but is rarely found in the facial bones. Osteochondroma shows an irregular radiopaque lesion and chondromatic area surrounded by osteoma. It may appear different findings as calcification levels. When it develops in the long bone, it has a marked tendency in the ages from 10 to 20 years and ceases with the end of pubertal growth. However, when it develops in the condyle, it is prevalent in the third decades (average 39.2 years) and continues to develop. Lesions developed in the long bone have a predilection for men (M:F = 2:1), but for women in the mandible. Osteochondroma is differentiated from chondroma, osteochondromatosis and osteoma. Mandibular condyle osteochondroma presents asymptomatic facial swelling, rarely posterior openbite, pain during mouth opening and internal derangement of the temporomandibular joint disc due to condylar lengthening and condylar hyperplasia. The first choice of treatment of the massive osteochondroma is the surgical removal. We report osteochondroma of the mandibular condyle showing good result to treat the lesion.

구순열비변형의 이차 교정에 있어서 Bardach 술식의 유용성 (Usefulness of Bardach's Technique for Secondary Correction of Cleft Lip Nasal Deformity)

  • 유선열;구홍;양지웅
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제32권5호
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    • pp.406-415
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    • 2010
  • Purpose: The secondary correction of cleft lip nasal deformity still presents a difficult surgical problems. The present study was aimed to investigate the usefulness of Bardach's technique for secondary correction of cleft lip nasal deformity. Materials and Methods: The subjects were eight patients with unilateral and bilateral cleft lip nasal deformity, who had secondary correction by using Bardach's rhinoplasty technique. Age range was from 2 to 21 years and mean age was 10.6 years. There were 3 boys and 5 girls. Six patients had bilateral and two patients had unilateral cleft lip. Facial photographs were taken before and twenty days after the operation. By using Adobe photoshop, the columella height and the nostril width were measured from the facial frontal photograph and Worm's eye view. The degree of improvement was calculated and statistically analyzed. Results: The degree of improvement of the columella length and the nostril width after Bardach's technique was $70.39{\pm}50.14%$ and $-22.93{\pm}0.15%$ respectively. Bardach's technique resulted in projecting the nasal tip, lengthening the columella, medially advancing the alar bases, restructuring the lower lateral cartilages, and changing orientation of the nostrils from horizontal to oblique. The profile view shows projection of the nasal tip, lengthening of the columella, and the change in the nasolabial angle. The scars remained at the philtrum were matter little in compared with improvement of the nasal appearance. Conclusion: These results indicate that Bardach's technique is an useful surgical technique for secondary correction of cleft lip nasal deformity.

족근 중족 관절의 특발성 골관절염에 대한 수술적 치료 및 임상적 결과에 대한 분석 (Surgical Treatments and Clinical Outcomes for Idiopathic Osteoarthritis of the Tarsometatarsal Joints)

  • 정홍근;변우섭
    • 대한족부족관절학회지
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    • 제8권1호
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    • pp.31-38
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    • 2004
  • Purpose: The purpose of the study was to identify the subtypes of idiopathic osteoarthritis of the tarsometatarsal joints based on accompanying hindfoot, midfoot, or foot deformities and their corresponding surgical options and also to evaluate the overall clinical results. Materials and Methods: The study included 59 patients (67 feet) with idiopathic tarsometatarsal joint osteoarthritis. Tarsometatarsal fusion was performed for tarsometatarsal joint and accompanied secondary change was divided into subtypes and various bony reconstruction was carried out. The patients were evaluated with the AOFAS midfoot score and FFI. The average patient age was 60.2 years with 40.6 months follow-up. Fifty-four feet (80.6%) had been treated with realignment fusion. Twenty-six feet had first and second tarsometatarsal joint fusion, and 20 feet had first tarsometatarsal fusion only. Six subtypes were identified based on associated foot deformities: 1) in-situ without deformities (18%), 2) pes planovalgus (45%), 3) rockerbottom (15%), 4) cavus foot (1%), 5) hallux valgus (12%), and 6) hallux valgus with pes planovalgus or rockerbottom (9%). Plantar-medial closing-wedge resection was used in 10 feet to correct rockerbottom. For pes planovalgus, a medial sliding calcaneal osteotomy was done. Lateral column lengthening with medial sliding calcaneal osteotomy was done for severe pes planovalgus, and triple arthrodesis was done for rigid pes planovalgus. Hallux valgus was corrected with the Lapidus procedure (85.7%). Results: AOFAS midfoot scores improved from preoperative 34.1 points to postoperative 83.9 points (p<0.05). The Foot Function Index postoperatively also showed significant improvement (p<0.05), with a high satisfaction rate (86.6%). There were 29 complications, most commonly sesamoid pain. Conclusion: Idiopathic tarsometatarsal OA feet can be classified into six categories. Pes planovalgus feet should be treated with medial sliding calcaneal osteotomy, lateral column lengthening, or triple arthrodesis in addition to tarsometatarsal joint realignment fusion. Rockerbottom and hallux valgus deformities should also be addressed.

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Telomere association of Oryza sativa telomere repeat-binding factor like 1 and its roles in telomere maintenance and development in rice, Oryza sativa L.

  • Byun, Mi Young;Cui, Li Hua;Lee, Hyoungseok;Kim, Woo Taek
    • BMB Reports
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    • 제51권11호
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    • pp.578-583
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    • 2018
  • Telomeres are specialized nucleoprotein complexes that function to protect eukaryotic chromosomes from recombination and erosion. Several telomere binding proteins (TBPs) have been characterized in higher plants, but their detailed in vivo functions at the plant level are largely unknown. In this study, we identified and characterized OsTRFL1 (Oryza sativa Telomere Repeat-binding Factor Like 1) in rice, a monocot model crop. Although OsTRFL1 did not directly bind to telomere repeats $(TTTAGGG){_4}$ in vitro, it was associated with telomeric sequences in planta. OsTRFL1 interacted with rice TBPs, such as OsTRBF1 and RTBP1, in yeast and plant cells as well as in vitro. Thus, it seems likely that the association of OsTRFL1 with other TBPs enables OsTRFL1 to bind to telomeres indirectly. T-DNA inserted OsTRFL1 knock-out mutant rice plants displayed significantly longer telomeres (6-25 kb) than those (5-12 kb) in wild-type plants, indicating that OsTRFL1 is a negative factor for telomere lengthening. The reduced levels of OsTRFL1 caused serious developmental defects in both vegetative and reproductive organs of rice plants. These results suggest that OsTRFL1 is an essential factor for the proper maintenance of telomeres and normal development of rice.