• Title/Summary/Keyword: 편측성

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A STUDY ON THE FACIAL MORPHOLOGY AND GROWTH CHANGES IN UNILATERAL CLEFT LIP AND PALATE PATIENTS ACCORDING TO THE AGES (연령에 따른 편측성 순구개열자의 안모형태 변화에 관한 연구)

  • Kim, Young-Mi;Park, Soo-Byung;Rhee, Byung-Tae
    • The korean journal of orthodontics
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    • v.22 no.3 s.38
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    • pp.657-673
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    • 1992
  • Orthodontic treatment of cleft patients is difficult as the growth is different from that of normal ones. So it is very important to know the characteristic features of the craniofacial morphology and growth pattern in unilateral cleft lip and palate patients. The materials for this study consisted of 55 normal males and 50 unilateral cleft lip and palate ones who received cheiloplasty and palatoplasty previously. The cleft subjects were divided into 4 groups according to their ages kto find out the growth pattern of hard and soft tissue, and to compare the features with those of normal ones. Each cephalogram analysed by McNamara method and others. The obtained results were as follows 1. In the unilateral cleft lip and palate subjects, forward growth of the maxilla was smaller than that of normal ones from 9 years old. So the maxilla was retruded. The maxillary incisors were severely retruded in all age groups. 2. The mandibular overall length and its anteroposterior position did not show any significant differences between two groups. But the height of ramus was very short and the mandible had vertical growth tendency to compensate for undergrowth of the maxilla in cleft subjects after 12 years of age. 3. Horizontal growth of the soft tissue in middle face was smaller than that of any other facial region from 9 years old. The vertical growth rate of upper lip was decreased as growing old. 4. In cleft subjects, the upper and lower facial component angle and the facial convexity angle were large. So their facial profile changed to straight or concave as growing old.

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EFFECTS OF ABUTMENT SPLINTING ON STRESS DISTRIBUTION IN UNILATERAL DISTAL EXTENSION RPD (지대치 연결고정에 따른 편측성 후방연장 국소의치에서의 응력분포)

  • Ahn Hee-Young;Jin Tai-Ho
    • The Journal of Korean Academy of Prosthodontics
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    • v.42 no.2
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    • pp.154-166
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    • 2004
  • Statement of problem: In distal extension removable partial denture, the preservation of health of abutment teeth are very important, but they are always subjected to unfavorable stress. Purpose: The purpose of this study was performed to investigate the effects of abutment splinting and design of direct retainer on the stress distribution of abutments in unilateral distal extension removable partial dentures. Material and method: Abutments were splinted by different method. In group 1, autment teeth were not splinted, in group 2, canine and 1st premolar were splinted, and in group 3, canine, 1st and 2nd premolars were all splinted. Three different types of direct retainer such as Akers clasp, RPI clasp, and wrought wire clasp were designed. Strain was measured with Switch & Balance Unit(SB-10, Measurement Group Instruments Division, Raleigh USA) and Strain Indicator(P-3500, Measurement Group Instruments Division, Raleigh, USA) 15kg of vertical and oblique loads was applied at central fossa of missing 2nd molar area. Results : The strain on lingual side of 2nd premolar was the greatest, and abutment splinting induced decrease of strain on buccolingual side of 2nd premolar. The strain of loaded area was decreased by abutment splinting and there was no statistical difference of strain between Group2 and Group 3, and strain on 2nd premolar in wrought wire clasp was the least. Conclusion: Within the limitations of this study, splinting of two distal abutment teeth is enough for stress distribution widely, and wrought wire clasp was more benefitable than others.

ANALYSIS OF STRESS DEVELOPED WITHIN THE SUPPORTING TISSUE OF ABUTMENT TOOTH WITH INDIRECT RETAINER ACCORDING TO VARIOUS DESIGNS OF DIRECT RETAINER AND DECREE OF BONE RESORPTION (편측성 후방연장 국소의치에서 직접유지장치의 설계와 지대치 골흡수에 따른 간접유지장치 지대치 주위조직에 발생하는 응력분석)

  • Lee, Suk-Hyun;Lee, Cheong-Hee;Jo, Kwang-Hun
    • The Journal of Korean Academy of Prosthodontics
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    • v.36 no.1
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    • pp.150-165
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    • 1998
  • For the purpose of evaluating the effect of both direct retainer design and bony absorption degree around abutment of indirect retainer on the supporting tissue of abutment of indirect retainer, dislodging force was transmitted to unilateral distal extension RPD bases. Analysis of stress distributed within the supporting tissue around abutment of indirect retainer was carried out. Using three-dimensional photoelastic stress analysis method and the conclusion is a follows. 1. According to the extent of force which the direct retainer of the most distal abutment tooth, the amount of force transmitted to the abutment tooth of indirect retainer was small. 2. Of all the cases, Mandibular first premolar which was used abutment tooth of indirect retainer, buccal, mesial and distal sides represented compression stress and lingual side represented tensile stress. 3. The more bone resorption of abutment tooth of indirect retainer, the more distortion of buccal and distal side of abutment tooth was existed and the extent of compression stress which was existed and distal side to abutment tooth was large. 4. When the alveolar bone around the abutment with indircet retainer is normal. The amount of force transmitted on abutment with indirect retainer was small in the order of Akers clasp, RPA clasp, RPI clasp. 5. When the alveolar bone around the abutment with indirect retainer has been absorbed 20% and 30%, the amount of force transmitted on abutment with indirect retainer was small in the order of RPA calsp, RPI clasp, Akers clasp. 6. When denture is displaced, shape of the direct retainer reciprocating abutment affect much the function of indirect retainer.

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Renal Tubular Carcinoma in a Cocker Spaniel Dog (코커 스파니엘에서 신장세포암종)

  • Kye, Eun-Young;Yun, Sung-Ho;Jang, Hwan-Soo;Kwak, Dong-Mi;Ku, Sae-Kwang;Jang, Kwang-Ho;Kwon, Young-Sam
    • Journal of Veterinary Clinics
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    • v.28 no.4
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    • pp.431-434
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    • 2011
  • A 7-year-old neutered male Cocker spaniel was referred to Veterinary Medical Teaching Hospital, Kyungpook National University with a left abdominal mass, anorexia and weight loss. Hematologic test and biochemical panel showed severe leukocytosis, mild anemia, mild hypoalbuminemia and a marked elevation in gamma glutamyl transferase (GGT). Radiography demonstrated a large mass on the left kidney and there was no evidence of pulmonary metastases. Histopathologic features of the mass were consistent with renal tubular carcinoma. The dog was treated with unilateral nephrectomy. During the follow-up, the dog died 6 months after surgery.

Cephalometric Study of the Morphology and Position of Mandible in Complete Unilateral Cleft Lip and Palate Patients (완전 편측성 구순구개열자의 하악골 형태와 위치에 관한 측모 두부 방사선학적 연구)

  • Lee Seung-Wook;Son Woo-Sung
    • Korean Journal of Cleft Lip And Palate
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    • v.5 no.1
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    • pp.27-42
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    • 2002
  • This study was designed to evaluate the morphology and the position of the mandible in the complete unilateral cleft lip and palate patients, Craniofacial skeletal morphology pattern was analyzed on the lateral cephalometric radiographs of the 50 subjects of complete unilateral cleft lip and palate, the 50 normal and 50 class III, Each group was divided into child and adult sub-groups, All the data were tested statistically. The results were as follows: I, In the comparison with the normal group, complete cleft group showed smaller angular, condylar length, clockwisely rotated mandible and larger NMe/SGo(p<0.01). 2, In the comparison with the class III group, the complete cleft group showed significantly smaller angular, condylar, ramal, body length of the mandible(p<0,01). 3. As for the position of the mandibular condyle to the cranial base, the class III group was the most anterior, the normal group was the most posterior and the complete cleft group was in the middle(p<0.05). 4. In the comparison with child group, the normal adult group showed smaller mandibular angle and mandibular plane angle, but not the other two groups. And the complete cleft group and the class III group showed the similar change. The normal and class III group showed increased XiCd/XiPog, but not the complete cleft group(p<0.01).

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The Result of Combined Modality Treatment for Non-Hodgkin's Lymphoma of Head and Neck (두경부 악성 임파종에 대한 병용치료의 결과)

  • Kim Jae Cheol;Kim Sang Bo;Ryu Samuel;Park In Kyu
    • Radiation Oncology Journal
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    • v.8 no.2
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    • pp.255-260
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    • 1990
  • From April 1985 to September 1989, 26 patients with stage I and II non-Hodgkin's lymphoma of unfavorable histology localized in head and neck region were treated with combined modality (combination chemotherapy plus radiotherapy) at the Department of Therapeutic Radiology in Kyungpook National University Hospital. Of the 26 patients, 23 showed complete response and 3 partial response. Between these two groups there were no statistical differences according to the variables. Three-year survival and disease-free survival rate were $62.4{\%}$ and $65.2{\%}$, respectively. Unilateral involvement of neck node (p<0.05), radiation dose over 5000 cGy (p<0.01), and 6 or more cycles chemotherapy (p=0.06) had a favorable effect on 3-year survival rate. There were 8 recurrences including 3 partial responders, 1 local failure, 1 distant failure, 1 contiguous failure, and 2 simultaneous local and distant failure. It could be suggested that combined modality treatment might be necessary for the treatment of stage I and II Non-Hodgkin's lymphoma of unfavorable histology.

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SURGICAL CORRECTION OF A CUPID'S BOW USING A DOUBLE Z-PLASTY: REPORT OF A CASE (중복 Z-성형술을 이용한 큐피드활의 교정)

  • Ryu, Sun-Youl;Seo, Il-Young
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.27 no.1
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    • pp.66-70
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    • 2005
  • Cupid's bow, upper lip, columella, and ala of nose are esthetically important, in which their symmetrical plasties determine success or failure of the surgery in cleft lip and palate patients. Z-palsty and its modifications are simple and effective. The double Z-plasty is economical in surgical time and esthetics in reconstructing the cupid's bow compared with other methods. We report a 29-year-old male patient who represented reversed cupid's bow and whistle deformity after the primary repair of the cleft lip. He was corrected the cupid's bow using a double Z-plasty. The reversed cupid's bow was corrected to a normal shape and the whistle deformity disappeared. The tightness of the upper lip was relieved after the operation. The double Z-plasty was esthetically successful because the procedure was limited in the vermilion and did not produce a new scar on the skin. Furthermore, the lip tubercle became protuberant. The cupid's bow was symmetrically smoothly curved at 4 years after the operation. These results indicate that the double Z-plasty is simple, less traumatic to the surrounding tissues, and suitable for the correction of whistle deformity.

A Case of Klinefelter Syndrome associated with Unilateral Multicystic Dysplastic Kidney in a Newborn Infant (신생아기에 발견된 편측 다낭성 신이형성이 동반된 Klinefelter 증후군 1례)

  • Ha, Kyung A;Chung, Sun Mi;Choi, Eun Jin;Kim, Jin Kyung;Nho, Un Seok;Park, Jae Shin;Kim, Woo Taek;Kwon, Young Dae
    • Clinical and Experimental Pediatrics
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    • v.45 no.9
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    • pp.1141-1145
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    • 2002
  • Klinefelter syndrome is the most common chromosomal abnormality, with a 47, XXY karyotype and typical clinical findings of infertility, hypogonadism, reduced body hair, gynecomastia, tall stature, and incresed gonadotropins and decreased testosterone levels. In addition to this classic description, several other diseases have been discribed in Klinefelter syndrome such as unilateral renal aplasia, autoimmune disease, diabetes mellitus, sexual precoxity, renal cell carcinoma, intravesical ureterocele, and osteoporosis. The incidence is 1 in 400-1,000 of the population and urological abnormalities are not common. However a case of Klinefelter syndrome associated with multicystic dysplastic kidney has not been not reported up to date. Therefore, we describe a 1-day-year old baby boy who presented with Klinefelter syndrome with unilateral multicystic kidney dysplastic disease, plus with a brief review of the literature.

A Study on the Self-voice Suppression Algorithm in a ZigBee CROS Hearing Aid (지그비 크로스 보청기에서의 자기음성 억제 알고리즘 연구)

  • Im, Won-Jin;Goh, Young-Hwan;Jeon, Yu-Yong;Kil, Se-Kee;Yoon, Kwang-Sub;Lee, Sang-Min
    • Journal of IKEEE
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    • v.13 no.3
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    • pp.62-71
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    • 2009
  • In this study, we developed a wireless CROS(contralateral routing of signal) hearing aid for unilateral impaired people. CROS hearing aid takes sound from an ear with poorer hearing and transmit to another ear with better hearing. Generally, the self-voice delivered through the receiver of CROS hearing aid can be very loud. It is hard to perceive target speech because of loud self-voice. To compensate it, a self-voice suppression algorithm has been developed. we performed SDT(speech discrimination test) for evaluation of the self-voice suppression algorithm. One-syllable words was used as test speech and recorded with self-voice at a 1m distance. As the results, SDT score was improved about 11% when the self-voice suppression algorithm was processed. It is verified that the self-voice suppression algorithm helps speech perception at a time to communicate with others.

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Eyelid Squamous Cell Carcinoma in a Horse in Jeju (제주도의 말에서 발생한 안검 중층편평상피 암종)

  • Kim, Jae-Hoon;Woo, Gye-Hyeong;Kim, Jae-Hoon
    • Journal of Veterinary Clinics
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    • v.30 no.5
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    • pp.399-402
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    • 2013
  • An 8-year-old, female, mixed Thoroughbred horse was presented for the evaluation of the left upper eyelid mass with ocular discharge during 4 months. After unilateral surgery, excised eyelid mass and left eye were submitted for diagnosis. Grossly, the removed mass was $6{\times}7{\times}2$ cm in size and dome shape with rough irregular surface. On the cut surface, mass was firm and yellowish white in color. Histopathologically, severely proliferated stratified squamous epithelia were heavily invaginated into dermis, and then formed rete ridge or numerous squamous islands. These neoplastic islands were composed of multiple layers of prickle cells with intercellular bridge and central laminated keratin pearls or necrotic cellular debris. Based on the above results, this case was diagnosed as squamous cell carcinoma in upper eyelid of horse.