가토에서 하악골신장술시 신장부에 대한 가골압축의 효과

박홍주,안진석,국민석,오희균,유선열,조진형,Park, Hong-Ju,An, Jin-Suk,Kook, Min-Suk,Oh, Hee-Kyun,Ryu, Sun-Youl,Cho, Jin-Hyoung 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.1

Purpose: To evaluate the effect of compression on the distracted area in new bone formation during mandibular distraction osteogenesis in rabbits. Materials and method: Sixteen rabbits, weighing approximately 2 Kg, and the prefabricated distraction device were used. With the rabbits under general anesthesia, we performed vertical osteotomies between the anterior and posterior mandibular teeth and then placed the distraction device. After a 5 -day latency period, the mandible was distracted to a length of 10.0 mm at a rate of 1 mm/day and then immediately compressed 4 mm in the experimental group (n=8). In the control group (n=8), the mandible was distracted to a length of 6.0 mm at a rate of 1 mm/day. Rabbits in the control group were killed at 2 and 8 weeks during the consolidation period. The specimens were evaluated with light microscope after H & E stain. Histomorphometric analysis was done at 8 week specimens. Results: All experimental animals showed mandibular elongation on the macroscopical and radiographic evaluations. At 2 week, immature bone formation was observed from the surface of the host bone margins with collagen fibers arranged parallel to the direction of distraction in the control group; in the experimental group, immature bone formation was observed adjacent to the host bone, and the collagen fibers were not arranged uniformly. At 8 week, spindle-shaped new bone formation was seen in the direction of distraction in distracted area of the control group, while in the experimental group, the newly formed bone was arranged in a multidirectional manner, like the pattern of trabeculae. In the histomorphometric analysis of 8 weeks, the area of bone deposition was $2.12{\pm}\;0.75\;inch^2$ in the experimental group and $0.87{\pm}0.51\;inch^2$ in the control group (p<0.01). The bone deposition ratio was $29.60{\pm}10.50%$ in the experimental group and $12.10{\pm}7.17%$ in the control group (p<0.01). Conclusion: These results suggest that compression after over-distraction during the mandibular distraction osteogenesis is an effective method of increasing the amount of newly formed bone in distracted area.

발치 후 즉시 매식된 서로 다른 두종의 RBM표면 처리된 임플란트에 대한 다기관 후향적 임상연구

박홍주,국민석,김수관,김영균,조용석,최갑림,오영학,오희균,Park, Hong-Ju,Kook, Min-Suk,Kim, Su-Gwan,Kim, Young-Kyun,Cho, Yong-Seok,Choi, Gab-Lim,Oh, Young-Hak,Oh, Hee-Kyun 대한악안면성형재건외과학회 2008 Maxillofacial Plastic Reconstructive Surgery Vol.30 No.3

Purpose. This multicenter retrospective study was performed to evaluate the survival and success rates of immediate placement of USII and SSII Osstem implant (Osstem implant Co, Korea) on the maxillary and mandibular anterior and premolar areas. Materials and methods. Dental records were obtained in 37 patients who were treated with immediate implantation on the maxillary and mandibular anterior and premolar areas in 6 different clinics. The 98 implants were evaluated both clinically and radiographically using predefined success criteria. Results. There was no failed implant in all patients. The mean follow up period was 24.7 months (ranged from 12 to 58 months), and 25.1 months (ranged from 16 to 35 months) in USII and SSII implants, respectively. The crestal bone loss was 3 mm in 3 USII implants during 41 months, and in 1 SSII implant during 22 months. The overall success rate was 94.2% and 97.7% in USII and SSII implants, respectively. The age, gender, diameter, or length of implants, and type of surgery were not influenced to the success rate of immediate implantation. Conclusion. These results suggest that USII and SSII Osstem implant can be used successfully in immediate implantation on the maxillary and mandibular anterior and premolar areas.

하악골에 발생한 거대 낭종에서 하악지 시상분할골절단술을 이용한 외과적 치료

박홍주,류재영,국민석,오희균,Park, Hong-Ju,Ryu, Jae-Young,Kook, Min-Suk,Oh, Hee-Kyun 대한악안면성형재건외과학회 2008 Maxillofacial Plastic Reconstructive Surgery Vol.30 No.1

First of all a good surgical access is considered among various approach methods to the cystic lesion. A poor surgical access can lead to a failure of the whole treatment. A sagittal split ramus osteotomy (SSRO) on the large cyst occurring in the mandibular ramus lets us not only reduce operation time, but can additionally contribute to a good visual field. In addition, a merit exists that it lets this operating method provide soft tissue adhesion for proximal and distal segment and decrease post operative necrosis. We experienced three cases of a large cyst on the mandibular angle and ramus. By employing a sagittal splitting of the mandible, it provided good surgical access and operation results without recurrence during a follow-up period. The surgical technique described may be helpful in treating similar large cysts.

하악과두에서 발생한 악성 골육종 환자에서 외과적 절제 후 유리장골이식을 이용한 재건

박홍주,유민기,국민석,오희균,Park, Hong-Ju,Yu, Min-Gi,Kook, Min-Suk,Oh, Hee-Kyun 대한악안면성형재건외과학회 2008 Maxillofacial Plastic Reconstructive Surgery Vol.30 No.4

하악골에서 고분화 골육종은 매우 드물게 보고되고 있으며 조직검사상 전형적인 골육종과는 달리 다형성(pleomorphism)을 보이지 않기 때문에 양성종양으로 오진(under-diagnosis) 되기 쉽다. 그러나 정확한 환자의 진단은 적절한 치료와 환자의 예후에 영향을 큰 영향을 미친다. 그러므로 조기에 정확한 진단을 위하여는 의심되는 여러 부위에서 조직검사를 시행하고 임상소견과 방사선소견 등을 병리의사와 공유하여야 한다. 이에 초기에 진단이 어려웠던 하악골에 발생된 고분화 골육종을 경험하여 환자의 사회적 기능적 회복을 위한 수술을 시행하여 바람직한 결과를 얻었기에 문헌고찰과 함께 보고하는 바이다. Osteosarcoma of the jaw is a rare malignant bone tumor which usually leads to a poor prognosis. It commonly occurs in young patients, especially in male. The tumor can involve mandible or maxilla with same frequency. The swelling in the involved area and facial deformity are common clinical findings. The pain and sensory changes are also complained by the patients. Although radical surgery plays an important role in the management of this tumor, the adjuvant chemotherapy or radiotherapy is used to enhance local control and to prevent distant metastases. We treated a 22-year-old male patient who had osteosarcoma in the left condylar region. The radical surgery which consisted of hemimandibulectomy and total parotidectomy, was done and an immediate mandibular reconstruction was performed with a vascularized free iliac osteomuscular flap. The obtained results, both esthetic and functional, were satisfactory. The patient was received postoperative chemotherapy. This is a case with reviews of the literatures.

골격성 III급 부정교합 환자에서 양악 수술후 연조직 변화에 대한 연구

박홍주,최홍란,유선열,Park, Hong-Ju,Choi, Hong-Ran,Ryu, Sun-Youl 대한악안면성형재건외과학회 1998 Maxillofacial Plastic Reconstructive Surgery Vol.20 No.4

The purpose of this study was to assess the soft tissue changes using twenty skeletal class III malocclusion patients who treated with bimaxillary surgery for the correction of dentofacial deformities. Patients were divided into two groups. One was impaction and advancement of maxilla with mandibular set-back (Group 1), the other was downward and advancement of maxilla with mandibular set-back (Group 2). Preoperative and postoperative one year cephalometric data were analyzed and compared. Results obtained were as follows: 1. The ratio of horizontal changes of soft tissue to hard tissue at Nt to ANS, Ls to UI, Li to LI, sPog to Pog were 1:0.60, 1:0.79, 1:0.47, 1:0.63 in group 1 respectively, and 1:0.59, 1:0.48, 1:0.83, 1:1.09 in group 2 respectively. Soft tissue changes were highly predictable at the upper lip, lower lip, and chin area. 2. The ratio of vertical changes of soft tissue to hard tissue at Nt to ANS, Li to LI were 1:0.72, 1:0.06 in group 1, and others showed no statistically significant difference. 3. The ratio of horizontal changes of Ls to hard tissue movements at LI(h) was 1:-0.82 in group 1 and at UI(h), LI(h) were 1:0.48, 1:0.01 in group 2. These ratios of group 1 were greater than those of group 2. 4. The direction of horizontal change of Li was the same as that of hard tissue change. The ratio of horizontal changes of Li to LI was 1:0.47 in group 1 and others showed no statistically significant difference. 5. The changes of upper lip thickness and length were -1.6mm, -1.4mm in group 1, and -1mm, -2.7mm in group 2. 6. The ratios of thickness of upper lip to ANS, UI, LI were 1:-0.83, 1:-0.37, 1:0.11 in group 1. There was similar trend in group 2, and there were no statistically significant difference. These results suggest that prediction of changes in soft tissue of upper lip, lower lip, and chin were 79%, 47%, and 63% in group 1, and 48%, 83%, and 109% in group 2. There was a tendency to decrease in thickness and increase in length of the upper lip.

표고버섯의 채취 시기 및 부위별 영양성분 함량 비교

박홍주(Park Hong Ju),이성현(Lee Sung Hyeon),백오현(Back Oh Hyeon),조수묵(Cho Soo Muk),조용식(Cho Yong Sick) 한국지역사회생활과학회 2004 한국지역사회생활과학회지 Vol.15 No.3

서금요법 자가관리 프로그램이 대학생의 알레르기비염에 미치는 효과

박홍주 ( Park Hong Ju ),김남희 ( Kim Nam Hee ) 경희대학교 동서간호학연구소 2019 동서간호학연구지 Vol.25 No.2

Purpose: This study investigated the effects of the Seogeum therapy among college students with allergic rhinitis. Method: A non-equivalent control group pretest-posttest non-synchronized design was used. Intervention of Seogeum therapy has been performed from March 2 through March 31, 2017. Sixty college students diagnosed with allergic rhinitis from two different colleges in B and K cities were assigned to the experimental and control group. Data analysis were conducted using descriptive statistics, chi-square test, Fisher’s exact test, and t-test. Results: There were significant differences in nose itching (t=4.89, p<.001), sneezing (t=6.26, p<.001), watery rhinorrhea (t= 4.09, p<.001), nasal congestion (t=2.36, p=.022), the percent of eosinophil (t=2.01, p=.049), perceived stress (t=2.05, p=.045), and allergic rhinitis related quality of life (t=4.33, p<.001) between the two groups. However, there were no significant differences in the percent of IgE (t=0.60, p=.553) and level of cortisol (t=0.53, p=.598). Conclusion: The results of this study indicates that the self-management of Seogeum therapy improved physical and psychological status of the college students with allergic rhinitis which ultimately improved their quality of life.

한국산 유색감자 색소의 특성 및 안정성에 관한 연구

박홍주(Hong-Ju Park),전태욱(Tae-Woog Jeon),이성현(Sung-Hyeon Lee),조용식(Yong-Sik Cho),조수묵(Soo-Muk Cho),장규섭(Kyu-Seob Chang) 한국식품영양과학회 2004 한국식품영양과학회지 Vol.33 No.9

유색 감자(PL-6, PL-28, PL-31과 Jasim)에 함유된 수용성 색소인 anthocyanin의 pH, 당, ascorbic acid, 유기산과 광원에 대한 색소 안정성을 조사하였다. pH는 유색감자의 anthocyanin 색소 안정성에 영향을 주는 것으로 나타났는데, pH가 낮을수록 색도가 높고 안정하였으며 pH가 높아질수록 색소 파괴가 많아지는 경향을 나타내었다. 유색 감자의 anthocyanin 색소에 당 첨가 시 저장 기간동안 점차적으로 색소가 약간 감소하는 것으로 나타났다. Tartaric, citric, succinic acid와 같은 대부분의 유기산은 anthocyanin 색소의 안정성을 개선시킨 반면 malic, malonic acid는 색소의 안정성을 감소시켰다. 유기산 중 하나인 ascorbic acid만을 첨가했을 때 anthocyanin 색소 안정성은 계속 감소하였으나 thiourea를 함께 사용한 경우 anthocyanin 색소의 안정성 유지에 효과가 있었다. 암실, 형광 그리고 햇빛에 대한 유색감자 anthocyanin 색소의 안정성은 점차 감소하며 빛으로부터 색소를 차단함으로서 색소분해를 최소화할 수 있을 것으로 판단된다. Effects of pH, sugar, ascorbic acid, organic acids and light sources on the stability of anthocyanin pigment extracted from Korean purple-fleshed potatoes (PL-6, PL-28, PL-31 and Jasim) were studied. The pH had remarkable influence on the color stability of anthocyanin pigment. With increasing pH, the color gradually fades as colorless pseudobases are formed. In acidic pH, anthocyanin was stable, but with increasing pH the color gradually changed to colorless. The addition of sugar decrease in color stability of the pigment during storage period. The most of organic acids, such as a tartaric, citric and succinic acids, were found to improve the stability of the pigment, while malic and malonic acid reduced the stability of the pigment. The addition of ascorbic acid considerable decreased in anthocyanin pigment stability, but the effect was not decreased by adding thiourea. The effect of light sources such as a darkroom, a fluorescent light, and sunlight, reduced gradually the stability of anthocyanin pigment. Therefore the pigment degradation could be minimized by shielding the light from the pigment.

강합성 바닥판에 사용되는 DY 스터드 볼트의 구조성능 및 시공성에 관한 실험적 연구

박홍주 ( Park Hong-ju ),박상현 ( Park Sang-hyun ),이지예 ( Lee Ji-ye ) 한국구조물진단유지관리공학회 2023 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.27 No.1

강합성 교량에서 강거더와 콘크리트 바닥판의 합성을 위한 전단연결재는 일반적으로 용접 스터드를 사용하고 있으며, 이에 노후된 바닥판 철거 및 교체 시 파쇄에 따른 먼지 및 소음유발 등 많은 문제점이 발생된다. 이에 기존의 용접형 스터드를 대체할 수 있는 DY 스터드 볼트의 구조성능 및 시공성 등을 검토하기 위해 용접형 스터드와 DY 스터드 볼트가 각각 적용된 실험체를 제작하여 수평전단실험 및 강합성 거더의 휨 실험을 실시하고 그 결과를 비교분석하여 DY 스터드 볼트의 성능을 검증하였다.

한국 약식동원 식물자원의 항산화 활성 비교

박홍주(Park Hong Ju),이성현(Lee Sung Hyeon),김대익(Kim Dae Ik),허은영(Hur Eun Young),조수묵(Cho Soo Muk) 한국지역사회생활과학회 2004 한국지역사회생활과학회지 Vol.15 No.4