양악 전방분절골절단술과 이부 성형술을 통한 개방교합의 치험례

황용인Yong-In Hwang,홍순민Sun-Min Hong,박준우Jun-Woo Park,이건주Gun-Joo Rhee,조형준Hyung-Jun Cho,천세환Se-Hwan Cheon,박양호Yang-Ho Park 대한구강악안면외과학회 2008 대한구강악안면외과학회지 Vol.34 No.3

Skeletal anterior open bite is a difficult problem to correct in orthodontic treatment. To treat adult patients who have skeletal anterior open bite, we considered two methods. Combination treatment of orthodontics & surgery and camouflage orthodontic treatment. In adults, treatment of severe skeletal anterior open bite consists mainly of surgically repositioning the maxilla or the mandible. However, camouflage therapy is often the treatment of choice for skeletal open bite patients who have mild to moderate skeletal discrepancies when growth modification is no longer possible. But excellent results generally require careful coordination of the orthodontic and surgical phases of treatment. This is a case report of a skeletal anterior open bite patients who were treated with orthodontic treatment and orthognathic surgery. First case was diagnosed as skeletal class I malocclusion & bimaxillary protrusion with anterior open bite, and finally treatment ended for removal of open bite with orthodontic procedure and bimaxillary anterior segmental osteotomy surgery. Second case was diagnosed as skeletal class II malocclusion with open bite & mandibular retrusion, and was treated with only camouflage orthodontics because she feared to have a surgery. In a regular follow up visit after debonding we proposed to the patient advanced genioplasty, and in her agreement her facial esthetics was improved through the surgery.

數種 齒科 金屬材料가 實驗動物에 미치는 病理組織學的 硏究

李健柱(Gun Joo Rhee) 대한치과의사협회 1977 대한치과의사협회지 Vol.15 No.2

내과적 질환을 수반한 치성감염

김원겸,이건주,안병근,Kim, Weon-Gyeom,Rhee, Gun-Joo,Ahn, Byoung-Keun 대한악안면성형재건외과학회 1991 Maxillofacial Plastic Reconstructive Surgery Vol.13 No.2

Pyogenic orofacial infections are most commonly odontogenic in origin. Although such infections are usually self-limiting and spatially confined, purulent material may occasionally borrow deeply into contiguous fascial space or planes far from the initial site of involvement. The incidence of orofacial infection remains low in this modern era of preventive dental care and antibiotic therapy, but severe orofacial infections are most frequently observed in the medically compromised patients. We experienced 5 cases of severe orofacial odontogenic infection associated with medical diseases, and then concluded as follows : 1. The average hospitalized period was about 5 weeks, and the signs that indicated that the infections were controlled usually appeared in third week after incision and drainage. 2. The involved medical diseases were diabetes mellitus iatrogenic Cushing's syndrome, rheumatoid arthritis, malnutrition, etc. 3. The medical diseases should be treated coincidently with control of infection.

유도당뇨백서에 매식된 수산화인회석의 조직반응

이동주(Dong Joo Lee),이건주(Gun Joo Rhee) 대한구강악안면외과학회 1994 대한구강악안면외과학회지 Vol.20 No.4

The purpse of this study was to evaluate the tissue reaction to hydroxyapatite(HA) in rats given streptozotocin(50mg/kg) to incuce diabetics. A pocket was created on the parietal bone of cranium. 40 rats were divided: 20 induced diabetics (ID) with HA, 20 non-induced diabetics with HA used as control group. Rats from each group were sacrificed at 1, 2, 4, 8, 24 weeks post-implantation. The results of this study were a follows: 1. Inflammatory reaction of ID was more intense than ND at 1 and 2 weeks. 2. Fibrosis in control group was greater than ID, but no significant difference between 2 and 4 weeks after implantation. 3. Dystrophic calcification was no significant difference between ID and control group. 4. No osteogenesis was obseved in both groups. In conclusion, it is important to control the infection at 1 to 2 weeks after the HA implantation and if the infection is controlled, HA in our study was acceptable in both ID rats and ND controls, as inert material, because no osteogenesis was observed in any specimen.

안면골 골절에 대한 통계학적 고찰

안병근(Ahn Byoung Keun),이건주(Rhee Gun Joo),민복기(Min Bok Kee),한호진(Hahn Ho Jin),정기영(Chung Ki Young) 대한구강악안면외과학회 1988 대한구강악안면외과학회지 Vol.14 No.1

This is a retrospective study on 516 patients with maxillofacial bone fracture. The patients were treated at HAN GANG SANCRED HEART HOSPITAL from Jan.1,1977 to Dec. 31, 1986. The results were as follows. 1) The male to female ratio was about 4.6:1. 2) The facial bone fractures occured most frequently in the twenties (38.9%). 3) The most frequent etiologic factor was traffic accident. 4) A symphysis area was the most traumatic site of mandible. 5) A zygomatic areas were the most traumtic sites of facial middle 1/3. 6) In case of maxillofacial bone fracture with other side injuries it is most frequently accompanied by head injuries.

하악 우측 우각부에 발생한 선종양 치계종양의 치험례

김원겸(Weon Gyeom Kim),이건주(Gun Joo Rhee),안병근(Byioung Keum Ahn) 대한구강악안면외과학회 1990 대한구강악안면외과학회지 Vol.16 No.2

Adenomatoid odontogenic tumor (adenoameloblastoma) is a rare tumor that comprises only 0.1% of all tumors and cysts of the jaws and 3% of all odontogenic tumors. This tumor is generally considered to affect mainly patients in the second decade of life. It occurs with great frequency in females and is found most often in the maxilla and in the anterior region of the jaws. Encapsulation, duct-like structures containing eosinophilic hyaline material, spindled epithelium, cribriform pattern, intraluminal calcification and dystrophic calcification of degenerative connective tissue were common histologic features. We experienced a case of adenomatoid odontogenic tumor which occured in mandibular right angle portion of 17-year-old boy, associated with lower right second molar, and seemed to be showed pathologic fracture of the mandible. This lesion was treated with enucleation, fixation with mesh type titanium plate, and allograft with PYROST for aid of healing. No specific change has seen in 6 months postoperative follow up.

측두하악장애 환자의 임상 및 정신 생리학적 분석

김상봉(Sang Bong Kim),이건주(Gun Joo Rhee) 대한구강악안면외과학회 1990 대한구강악안면외과학회지 Vol.18 No.4

This study was directed to clinical and pscychosomatic analysis in the temporomandibular disorder patients and control group, using various test batteries, such at temporomandibular disorder chart, social readjustment rating scale, coping strategies of Weisman, a global assessment of recent stress scale of Linn, Zung s self-rating scale of depression and MMIP. 67 subjects (33 of TMD patients and 34 of controls) who visited our dept, were evaluated and analyzed through SPSS program. The obtained results were as follows: 1. T.M.D. patients include3d more female than male and mean age was below 20 years old, eduction level was generally low and had many students & housewives. 2. A half of the T.M.D. patients had combined diseases, two-third had precipitating factor and all and two or three type of clinical symptom. 3. In T.M.D. patients there were no significant difference n psychosomatic analysis whether they had any preciptating factor or not. 4. In the T.M.D. patients, the group with combined diseases seemed to be more sensitive to interpersonal relationship, illness and to have higher tendency to depression than the group without combined diseases. 5. T.M.D. patients seemed to have more stress in SRRS, less responsive to the pressure from financial difficulties and unfamiliar with the three coping strategies, namely shared concern, redefinition, and acting-out. 6. T.M.D. patients had higher tendency to depression than control group in depression scale. 7. Regarding to scores of Hypochondriasis, Depression and Hysteria, T.M.D. patients showed significantly higher score than control group. It seems that T.M.D. patients had greater tendency to neurosis in MMPI.

부정유합된 상악골에 의해 발생한 부정교합의 상악골 수평골 절단술에 의한 치험례

김현호(Kim Hyeon Ho),이건주(Rhee Gun Joo) 대한구강악안면외과학회 1988 대한구강악안면외과학회지 Vol.14 No.2

A 61 year-old male patient was transferred to us with a chief complaint of malocclusion and masticatory difficulty due to malunioned maxilla. The malocclusion was corrected by Le Fort Ⅰ osteotomy. The conclusions are as follows: 1. The cause of malocclusion was malunioned maxilla. 2. Total Le Fort Ⅰ osteotomy was used to correct malunioned maxilla. 3. For rigid fixation and reducing the intermaxillary fixation period, metal plates were used. 4. Masticatory problem of the patient was solved. And there were no postoperative complications and evidence of relapse found.

방사선 조사후 매식한 임프란트와 관주에 따른 골치유에 대한 비교연구

홍성팔(Sung Pal Hong),이건주(Gun Joo Rhee),차용두(Yong Doo Cha),오세종(Se Jong Oh),현정민(Jung Min Hyun),최동주(Dong Joo Choi),박영주(Young Joo Park),박준우(Jun Woo Park) 대한구강악안면외과학회 2000 대한구강악안면외과학회지 Vol.26 No.1

In this study, the rate of bone formation and the pattern of bone to implant contact surface around HA coated implant and pure Ti implant inserted into the irradiated tibia of rabbit were compared. Sixteen mongrel mature male rabbits were used as experimental animal. Each rabbit received 15 Gy of irradiation. Four weeks after irradiation, two holes were prepared on the tibia of each rabbit for placement of HA coated type and pure Ti type implants. Prior to implant placement, one group received steroid irrigation and the control group was similarly irrigated with normal saline. This was immediately followed by placement of the two different types of implants. Postoperatively, tetracycline was injected intramuscularly for 3 days. For fluorescent labelling, 3 days of intramuscular alizarine red injection was given. 2 weeks before sacrifice, followed by intramuscular calcein green on the last 3 days before specimen collection. Each rabbit was sacrificed on the second, fourth, sixth and eighth week after the implantation. The specimens were observed by the light microscope and the fluorescent microscope. The results were as follows; 1. All implants inserted into the irradiated tibia of rabbit were free from clinical mobility and no signs of bony resorption were noted around the site of implant placement. 2. Under the light microscope, new bone formation proceeded faster around implants that received steroid irrigation compared to the control group irrigated with saline. Bone to implant contact surface was greater in the steroid irrigated group than the saline irrigated group. Therefore, better initial stabilization was observed in the group pretreated with steroid irrigation. 3. Under the light microscope. HA coated implants showed broader bone to implant contact surface than pure Ti implants, and HA coated implants had better bone healing pattern than pure Ti implants. 4. In the steroid pretreated group, acceleration of bone formation was demonstrated by fluorescent microscopy around the 2, 4 weeks group and the 6 weeks HA coated implant group. The difference in the rate of bone formation proved to be statistically significant(P<0.05). Faster bone formation was noted in the saline irrigated group in the 6 weeks pure Ti implants and 8 weeks group. The difference was not statistically significant(P<0.05). 5. For the rabbits that were sacrificed on the second and fourth week after the implant placements, the rates of bone formation around HA coated implants proceeded faster than those around pure Ti implants under the fluorescent microscopy. For the rabbits that were sacrificed on the sixth week after the implant placements, the rates of bone formation around pure Ti implants proceeded faster than those around HA coated implants under the fluorescent microscopy. But this result did not show statistical significance (P<0.05) For the rabbits that were sacrificed on the eighth week after the implant placements, the rates of bone formation around HA coated implants proceeded faster than those around pure Ti implants under the fluorescent microscopy. This result was statistically significant (P<0.05).

수직력하에서 임프란트 나사형태에 따른 응력의 3차원 유한요소법적 분석

김우택,차용두,오세종,박상수,김현우,박양호,박준우,이건주,Kim, Woo-Taek,Cha, Yong-Doo,Oh, Se-Jong,Park, Sang-Soo,Kim, Hyun-Woo,Park, Yang-Ho,Park, Jun-Woo,Rhee, Gun-Joo 대한구강악안면외과학회 2001 대한구강악안면외과학회지 Vol.27 No.2

There are three designs of thread form in screw type implants: V-thread, Reverse buttress thread and Square thread. The purpose of this study was to find out how thread form designs have an influence on the equivalent stress, equivalent strain, maximum shear stress and maximum shear strain and which design of thread form generates more maximum equivalent stress and strain. 3-D finite element analysis was used to evaluate the stress and strain patterns of three tread types. The results of this study were as follow. 1. Under the 200N of axial load, the value of maximum equivalent stress is smallest in square thread and there is no significant difference between that of V thread and reverse buttress thread. 2. Under the 200N of axial load, the value of maximum equivalent strain is largest in V thread and smallest in square thread. 3. Under the 200N of axial load, the value of maximum shear stress is smallest in square thread and there is no significant difference between that of V thread and reverse buttress thread. 4. Under the 200N of axial load, the value of maximum equivalent strain is largest in V thread and there is no significant difference between that of square thread and reverse buttress thread. 5. Above results show that the square thread has special advantages in stress and strain compared with other thread types, especially in shear stess which is most determinant to implant-bone interface. Considering the superior biomechanical properties of square form implant, we presume that square form implant has better clinical results than the other types of implants in the same clinical conditions.