악관절 세척술의 임상 양상에 대한 고찰

이안나(An Na Yi),한성익(Seong Yik Han),윤경인(Kyoung In Yun) 대한구강악안면외과학회 2000 대한구강악안면외과학회지 Vol.26 No.1

The temporomandibular joint arthrocentesis is indicated the closed lock due to anterior disc displacement without reduction. It can be easily carried out under local anesthesia with little complications. We performed arthrocentesis to the 24 patients, 9 patients who suffered from acute or chronic closed lock with anterior disc displacement, 2 patients from temporomandibular joint dysfunction related to systemic disease and 13 patients from joint dysfunction with pain. We present the common clinical aspect of arthrocentesis that operator can be easily faced with and possible modifications of this method.

Bioactive Glass(BiogranⓇ)를 이용한 백서 두개골 결손부 수복에 관한 조직학적 연구

이안나(An Na Yi),김수경(Soo Kyung Kim) 대한구강악안면외과학회 1997 대한구강악안면외과학회지 Vol.23 No.2

Various synthetic alloplast for repair of bone defect has been progressed and climcally applicated during recent 20 years. Silica glasses and glass ceramics have been shown to be both osteoconductive and biocompatible since 1972, and previous studies indicate that bioactive glasses and glass ceramics can be used as a bone substitute material alternative to autogenous and allogenous bone. These synthetic alloplastic materials may be widly applied to the oral and maxillofacial region m case of being taken over the disadvantage such as difficulty in processing, high cost, low processing efficieny, for these materials don t have disadvantages such as a pressure of double operations, postoperative pain, difficulty in finding out of donor. The purpose of this study ts searching for possibility of clinical application of bioactive glass powder of diameter 300~355nm after filling on the rat cranial CSD in comparison of repair capacity with clinically available decalcified freeze dried bone powder, histopathologically. We used 45 Rats(Sprague-Dowley) with approximate body weight of 250g, 15rats for practice group and 15 rats for control group. We made cranial bone defect, 15 on of allogenic bone, diameter of 8mm with drill and periosteal elevator In practice group, we filled bioactive glass commercially available(BiogranⓇ, Orthovita, Inc, U.S.A.) and in control group, we filled decalcified freeze dried bone powder obtained from limb bone of collecting group by the method of Reddi and Huggins. Animals were killed after 12weeks with internal fixation and decalcified, about 1cm resection block was embeaded in paraffin. We analyzed degree of bony healing and bone remodelling with light microscope after Hematoxylin-Eosin staining. The results after experimental study of implant of bioactive glass(BiogranⓇ) known for bone substitute material on 45 Rats(Sprague-Dowely) with approximate body weight of 250g are as follows. 1. Grafted DFDB showed more effective osteoconduction and new bone formation than bioactive glass after 3months. 2. Grafted bioactive glass showed active foreign body reaction after 3months. 3. Amorphous eosinophilic material partially substituted each of the inner and outer surface of the bioactive glass particle.

중안모 기형의 교정을 위한 Le Fort II & I 복합골 절단술을 이용한 외과적 교정술의 개발

김명진(Myung Jin Kim),이안나(An Na Yi),김성곤(Sung Gon Kim),남일우(Il Woo Nam),김종원(Jong Won Kim) 대한구강악안면외과학회 1997 대한구강악안면외과학회지 Vol.23 No.4

Many authors reported the etiology of hypoplasia of the nasomaxillary complex as trauma, infection, underdevelopment. To correct these deformities, Le Fort II Osteotomy and its modification has been popularly applied. This method enabled total advancement of nasomaxillary complexes and acquirememt of midfacial esthetics. But it has some limitations such as various occlusal deviation or lateral shifting of nasomaxillary complex in case of nasomaxillary retrusion. We grouped these patients as follows : 1. Nasomaxillary retrusion without shifting of nasomaxillary complex (1) Anteroposterior deviation of occlusal plane (2) Lateral deviation of occlusal plane(including canting) (3) Supero-inferior deviation of occlusal plane (4) Combined disturbance of occlusal plane without shifting of nasamaxillary complex 2. Lateral shifting of nasomaxillary complex with or without deviation of occlusal plane We performed Le Fort II and I combined osteotomy on eleven cases of midfacial deformity from June 1994 to July 1997 and in most of the cases, followed up maximum 36 months and could acquire positional stability and improvement of facial eathetics.

임상원저 : Le Fort 2 골절단술을 이용한 비중안모 개선 효과에 대한 임상적 연구 - 경조직 이동에 따른 연조직 변화율에 대한 연구

김명진(Myung Jin Kim),이안나(An Na Yi) 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.1

Le fort II osteotomy is much useful technique to correct the midfacial hypoplasia including nasomaxillary complex especilly in the patient with dish face appearance. Not in simple orthognathic surgery but in Le Fort II osteotomy, the standardization of prognostic value is essential in treatment planning to achieve satisfactory postoperative results. According to previous reports, the ratio of soft tissue change to hard tissue movements varies as to different surgical methods and different facial regions. But there are few report about the ratio of soft tissue change to hart tissue movement following Le Fort II osteotomy. So we tried to develop standarized soft tissue surgical treatment objective. We have followed up 16 patients, who had received Le Fort II osteotomy by one operator from 1990 to 1996, one year postoperatively. In cephalometrics, we used Frankfort line as horizontal reference line, and vertical reference line as one drawn from Sella to horizontal line perpendicularly. The Landmarks are G to soft tissue G, N on reference line to soft tissue N, ANS to Pn and A to Sn. The results are as follows. 1. The value of soft tissue change to hard tissue movement showed positive correlation, having statistical significancy at G, N2, N3 point. 2. At G, N2, N3 point, the ratio of soft tissue change to hard tissue movement was 0.51, 0.98 and 0.80 respectively and showed statistical significancy, while at N1, ANS, A point, that was 0.72, 0.49 and 0.26 but didn't showed statistical significance. 3. This result shows much the same change of the soft tissue change to hard tissue movement on the upper nasomaxilla, and less the same change on the lower maxilla and so the Le Fort II osteotomy can be recommended as a reliable effective operation method for correction of nasomaxillary retrusion.

Le Fort II 골절단술을 이용한 비중안모 개선 효과에 대한 임상적 연구 : 경조직 이동에 따른 연조직 변화율에 대한 연구

이안나,김명진 大韓顎顔面成形再建外科學會 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.1

Le fort II osteotomy is much useful technique to correct the midfacial hypoplasia including nasomaxillary complex especilly in patient with dish face appearance. Not in simple orthognathic surgery but in Le fort II osteotomy, the standardization of prognostic value is essential in treatment planning to achieve satisfactory postoperative results. According to pervious reports, the ratio of soft tissue change to hard tissue movements varies as to different surgical methods and different facial regions. But there are few report about the ratio of soft tissue change to hart tissue movement following Le fort II osteotomy. So we tried to develop standarized soft tissue surgical treatment objective. We have followed up 16 patients, who had received Le fort II osteotomy by one operator from 1990 to 1996, one year postoperatively. In cephalometrics, we used Frankfort line as horizontal reference line, and vertical reference line as one drawn from Sella to horizontal line perpendicularly. The landmarks are G to soft tissue G.N on reference line to soft tissue N, ANS to Pn and A to Sn. The results are as follows. 1. The value of soft tissue change to hard tissue movement showed positive correlation, having statistical significancy at G, N2, N3 point. 2. At G, N2, N3 point, the ratio of soft tissue change to hard tissue movement was 0.51, 0.98 and 0.80 respectively and showed statistical significancy, while at N1, ANS, A point, that was 0.72, 0.49 and 0.26 but didn't showed statistical significance. 3. This result shows much the same change of the soft tissue change to hard tissue movement on the upper nasomaxilla, and less the same change on the lower maxilla and so the Le fort II osteotomy can be recommended as a reliable effective operation method for correction of nasomaxillary retrusion.