• Title/Summary/Keyword: 호발

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치근파절의 처치 및 예후

  • 홍찬희
    • Proceedings of the KACD Conference
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    • 2002.05a
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    • pp.350-350
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    • 2002
  • 치아 외상은 크게 fracture와 luxation injury로 분류된다. 이 중에서 영구치의 root fracture는 외상의 0.5~0.7%를 차지하는 것으로 조사되고 있다. 호발부위로는 상악 중절치가, 나이로는 11~20세에서 호발하여, 이보다 어린 나이에서는 alveolar socket의 elasticity 때문에 fracture보다는 luxation 쪽으로 많이 발생하는 것으로 보고되고 있다.(중략)

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Mast Cell Distribution at Predilection Sites of Atopic Dermatitis in Normal Canine Skin (개의 아토피성 피부염의 피부증상 호발부위의 비만세포분포조사)

  • Yi Seong-Joon;Jeong A-Young;Oh Tae-Ho
    • Journal of Veterinary Clinics
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    • v.22 no.3
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    • pp.181-185
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    • 2005
  • Mast cell distribution was quantified in acidified toluidine blue sections of normal skin from 8 different sites in 10 dogs and compared to the predilection sites of canine atopic dermatitis. Mast cell counts varied significantly from site to site (p<0.0001) and counts in the superficial dennis were significantly higher than the deeper dennis (p<0.05). The highest mast cells distribution sites were the concave surface of the ear (mean $74.88{\pm}17.93\;per\;mm^{2}$) and the interdigital skin of the forefeet (mean $28.326{\pm}6.24\;per\;mm^{2}$). Counts in these sites were $280\%$ higher than all the other sites. Our results may provide some evidence that cutaneous mast cell distribution may be a factor in the frequent occurrence of ear and foot pruritus in atopic dermatitis. However, the low mast cell count in the predilection sites of atopic dermatitis did not explain the common occurrence of atopic lesions. Therefore, other factors or more complicated pathogenesis may be correlated with these predilection sites.

CLINICAL AND RADIOLOGIC STUDY OF ODONTOGENIC KERATOCYST (치원성 각화 낭종의 임상 방사선학적 연구)

  • Kim Sung Rae;Park Tae Won
    • Journal of Korean Academy of Oral and Maxillofacial Radiology
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    • v.14 no.1
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    • pp.27-38
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    • 1984
  • 치원성 각화 낭종의 임상적 방사선학적 양상을 연구하였다. 32명의 환자(21명의 남자, 11명의 여자)를 이 연구를 위하여 사용하였다. 환자들의 기록과 방사선사진을 통하여 성별 및 연령의 분포, 호발부의 방사선사진의 양상, 재발율 임상적 소견들을 조사하였던 바 아래와 같은 결과를 얻었다. 1. 남성이 여성에 비해 약 2배 호발하였고, 10대와 20대에서 가장 많이 발생하였다. 2. 호발부위는 하악의 구치에서 하악지에 이르는 부위였고 하악골이 상악골에 비해 호발하였다. 3. 원기성 낭종에서 각화성 변화를 일으킨 것이 가장 많았다. 4. 치근의 흡수를 많이 보였으며, 하악골에서 경계는 원형과 부채형(scalloped)이 거의 동등히 나타났고 상악골에서는 대부분 원형의 단발형 낭종이었다. 5. 높은 재발율을 보였다. 6. 감염이 되어 있는 경우가 많았다.

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IgA 신병증의 최근 진전

  • Go, Cheol-U
    • 학교보건
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    • s.25
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    • pp.81-95
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    • 2004
  • IgA 신병증은 원발성 사구체 신염의 가장 흔한 원인이다. 이 질환은 동양계와 백인에서 호발하며 흑인에서는 드문 것으로 알려져 있다.

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포도상구균증의 원인과 호발요인

  • 유일웅
    • KOREAN POULTRY JOURNAL
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    • v.12 no.5 s.127
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    • pp.59-62
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    • 1980
  • 기후가 따뜻해 지면서 육추가 알맞은 계절이다. 그러나 사육밀도가 높아지고 날씨가 더워지면서 항상 문제가 되는 질병이 소위 빠자리병이라는 피부병이다. 이에 대한 사전 대책으로 음성적인 경제적 손실을 막아야 한다. 눈에 나타나게 폐사하는 숫자적 손실보다 육계의 증체감소와 산란계의 능력 저하는 생각이상으로 손해를 주고 있다.

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A CASE OF BILATERAL SUPERNUMERARY TEETH IN THE MANDIBULAR INCISOR REGION : A CASE REPORT (하악 전치부에 양측성으로 발생한 과잉치의 치험례)

  • Jeong, Nae-Jeong;Kim, Jung-Wook;Kim, Chong-Chul;Lee, Sang-Hoon
    • Journal of the korean academy of Pediatric Dentistry
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    • v.28 no.1
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    • pp.142-145
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    • 2001
  • Supernumerary tooth is one of the abnormalities in tooth number. Supernumerary tooth result from excessive proliferation of dental lamina and incidence reports identify a range of $0.3\sim0.8%$ in primary dentition, $1.0\sim3.5%$ in permanent dentition with males being affected twice as frequently as females, maxilla nine times as frequently as mandible The incidence is more in anterior tooth region than in posterior region. The most common supernumerary tooth is the mesiodens, which located between maxillary central incisors. The occurrence is very rare in the incisor region of mandible and the reports on incidence is 2%. In this case, there were two supernumerary teeth in the mandibular region and we could acquire normal alignment of mandibular incisors by extraction and orthodontic treatment.

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Preliminary Study on Desizing and Dyeing Using Low Temperature Plasma (저온 플라즈마를 이용한 호발 및 염색 선행연구)

  • Bae, Paek-Hyun;Jo, Hun-Je;Kim, Hyo-Jin;Lee, Yeon-Hee;Park, Sung-Min;Kim, Jeong-Gyu;Jung, Jin-Ho
    • Journal of Korean Society of Environmental Engineers
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    • v.27 no.9
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    • pp.946-951
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    • 2005
  • In this wort plasma treatment was evaluated as an alternative clean desizing technology. Size materials such as PVA(polyvinyl alcohol), PACL(polyacrylic acid esters) and their mixture on PET(polyethylene terephthalate) fabrics were treated by $N_2$ and $O_2$ plasma. $O_2$ plasma was more efficient in size removal than $N_2$ plasma, and the removal of PVA was higher than that of PACL. SEM(scanning emission microscopy) pictures of the plasma treated samples directly proved the disappearance of sizing agents. After $O_2$ plasma treatment, the PET fabrics were subjected to conventional desizing process. Compared with untreated fabrics, the desizing effluent from the treated fabrics gave lower TOC, COD and $BOD_5$ values. This indicates plasma treatment not only serves to directly remove sizing agents but also offered several advantages by changing the chemical properties of sizing agents. Lastly, the effect of plasma desizing process on dyeing was examined using color difference and dyeing fastness tests. The CCM(computer color matching) results showed rotor difference between PET fabric desized by $O_2$ plasma treatment for 20 min and reference PET fabric desized by the conventional wet desizing process was around 1. This suggests the treated PET fabric can be directly subjected to dyeing process without any additional process. The plasma treated fabric also gave a good result of dyeing fastness so that grades of laundering, crocking, heat and light fastness were same or even better than the reference PET fabric did.

Analysis on Ischemic Cerebrovascular of Middle Age and Oldest-Old Age by Using Magnetic Resonance Imaging (자기공명영상을 이용한 중년 및 초고령의 허혈성 뇌혈관 호발 부위에 대한 분석)

  • Seoung, Youl-Hun
    • Journal of Digital Convergence
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    • v.10 no.9
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    • pp.391-396
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    • 2012
  • The purpose of this study was to present basic research data to utilize magnetic resonance imaging (MRI) with analyzing intracerebral regional distributions of ischemic cerebrovascular disease of middle aged and oldest-old aged people. We retrospectively analyzed middle-aged group (average age of 44.2 year-old, 43 males, 26 females) and oldest-old aged group (average age of 84.7 year-old, 58 males, 71 females) who taken MRI screening for ischemic cerebrovascular disease from May 2006 year to January 2008 year. The intracerebral vascular were classified into 8 vessels, which anterior communication artery (ACoA), posterior communication artery (PCoA), anterior cerebral artery (ACA), middle cerebral artery (MCA), posterior cerebral artery (PCA), internal carotid artery (ICA), common carotid artery(CCA), and basilar artery (BA). The result of middle-aged group showed that more ischemic cerebrovascular diseases appeared in men than women, and it affected in MCA mostly. In oldest-old aged group, ischemic cerebrovascular diseases occurred evenly spaced in intracerebral region of right, left, and both vessels, and women have more than men. For men, the most occurred in ICA and for women the most occurred in MCA. Specially middle-aged group in men showed that more ischemic cerebrovascular diseases in MCA appeared than oldest-old aged group in men. It is suggested that the analysis on ischemic cerebrovascular could be helpful in the clinical diagnosis and treatment.