24 research outputs found

    μž„μ‚°λΆ€μ˜ μΉ˜μ£Όμ§ˆν™˜ ν™œμ„±λ„μ™€ μ‘°μ‚°κ³Όμ˜ 상관관계에 κ΄€ν•œ 연ꡬ

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    Purpose We designed this study for the purpose of determining the relationship between periodontal disease activity and PLBW, using the evaluation of probing pocket depth, loss of attachment, gingival index, gingival crevicular fluid amount and subgingival microflora. Methods A total of 100 volunteer mothers(mean age 30.44) at the Department of Obstetrics and Gynecology Seoul National University Hospital were selected for this study.Pregnancy outcomes were categorized into cases and controls in two ways. our definition was based on the following; Group 1 : Any PLBW cases Vs. All NBW controls Group 2 : PLBW cases Vs. NBW controls A periodontal exam was performed on the Ramfjord( #16, 21, 24, 36, 41, 44) teeth and Clinical evaluation consisted of probing pocket depth, loss of attachment, gingival index and gingival crevicular fluid amount. Subgingival plaque samples were collected by three sterile #35 paper points. The total number of anaerobic colonies and aerobic bacteria were enumerated after incubation. Antisera to P. gingivalis, P. intermedia, A. actinomycetemcomitans were produced in white rabbits with live whole cells suspensions. The specific fluorescent bacteria obtained by immunofluorescence and total cell counts obtained by dark-field microscopy were counted on four fields. The percent of each specific microorganism in the total cell count was determined. Results Any PLBW and PLBW cases showed significantly greater probing depth and attachment loss than all NBW and NBW controls. Cases group had significantly increased anaerobic bacterial counts compared with control group and no differences in the other microbes. This study confirmed that periodontal disease is a statistically significant risk factor for PLBW by investigating clinical parameters and subgingival plaque analysis.이 μ—°κ΅¬λŠ” 1996년도 μ„œμšΈλŒ€ν•™κ΅ 병원지정연ꡬ비 지원에 μ˜ν•œ κ²°κ³Όμž…λ‹ˆλ‹€

    이타적 행동이 λ§Žμ€ 세상에 μ‚΄κ³  μ‹Άλ‹€

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    μ‚¬λžŒλ“€μ—κ²Œ κ°€μž₯ κ²©λ ¬ν•œ 감정을 λΆˆλŸ¬μΌμœΌν‚€λŠ” λ™κΈ°λŠ” μ•„λ¦„λ‹€μš΄ 풍경을 λ³΄λ˜κ°€, 혐였슀런 λ²Œλ ˆλ‚˜, λ¬΄μ„œμš΄ μ§μŠΉμ„ λ§Œλ‚¬μ„ λ•Œκ°€ μ•„λ‹ˆλΌ 같은 μ‚¬λžŒλ“€λΌλ¦¬ μƒλŒ€λ°©μ˜ ν–‰μœ„μ— μ˜ν•΄μ„œ 더 많이 μΌμ–΄λ‚œλ‹€. 노여움을 λŠλΌλŠ” 감정듀은 타인을 ν•΄μΉ˜κ³  μ‹Άκ²Œ λ§Œλ“€κ³ , μ‚¬λž‘κ³Ό 동정, κ°μ‚¬μ˜ 감정듀은 타인을 돕고 μ‹Άκ²Œ λ§Œλ“ λ‹€. μ‚¬λžŒμ„ λΉ„λ‘―ν•œ 동물듀은 μžκΈ°μ™€ λ‹€λ₯Έ μ‘΄μž¬λ“€μ„ 돕기도 ν•˜κ³  ν•΄μΉ˜κΈ°λ„ ν•˜λŠ” ν–‰μœ„λ₯Ό ν•œλ‹€. 자기 μžμ‹ μ„ ν¬μƒν•˜κ³  손해λ₯Ό κ°μˆ˜ν•˜λ©΄μ„œλ„ νƒ€μΈμ—κ²Œ μœ μ΅ν•˜λ„λ‘ ν–‰λ™ν•˜λŠ” 것을 μ΄νƒ€μ£Όμ˜(Altruism), λ˜λŠ” 이타적 행동이라고 ν•œλ‹€. 이타적 ν–‰λ™μ˜ μˆ˜ν˜œμžκ°€ λˆ„κ΅¬λ³΄λ‹€λ„ μΉœμ²™κ΄€κ³„μ΄κ±°λ‚˜, μžμ‹, λΆ€λͺ¨ κ΄€κ³„μ—μ„œ 제일 많이 일어남은 λ‹Ήμ—°ν•œ 일이닀. 인λ₯˜μ˜ μ—­μ‚¬μ˜ μƒλ‹Ήν•œ κΈ°κ°„ λ™μ•ˆ 지배해 μ™”λ˜ μ‚¬νšŒμ  λ‹¨μœ„κ°€ κ°€μ‘± 및 κ°€κΉŒμš΄ μΉœμ‘±λ“€λ‘œ 이루어진 μΉœλ°€ν•œ 관계 μ„€μ •μ΄μ—ˆλ‹€. μ΄λŸ¬ν•œ 응집λ ₯이 μ›μˆ­μ΄λ‚˜ λ‹€λ₯Έ 포유λ₯˜λ³΄λ‹€ ν•œμΈ΅ κ°•λ ₯ν•˜κ²Œ κ΅¬ν˜„λœ 것은 인간 κ³ λ„μ˜ 지λŠ₯을 ν†΅ν•΄μ„œ λ”μš± 견고히 된 것이닀. 자기의 μΉœμ²™μ„ λ•λŠ”λ‹€λŠ” 것은 μœ μ „μžκ°€ 슀슀둜 λ•λŠ” 것과 같은 λœ»μ΄λ‹€. 이타 행동을 μΌμœΌν‚€λŠ” μœ μ „μžκ°€ 슀슀둜 이읡을 μ–»κΈ° λ•Œλ¬Έμ— 이타 행동이 μ§„ν™”λ˜μ–΄ ν˜ˆμ—° 선택이 λ˜λŠ” μ…ˆμ΄λ‹€. μΉœμ²™ κ°„μ˜ 이타적 행동은 μ΄Œμˆ˜μ— 따라 λ‹€λ₯΄κΈ°λ„ ν•˜λ©° μžμ‹μ΄ λΆ€λͺ¨λ₯Ό μœ„ν•΄ ν¬μƒν•˜λŠ” 것보닀 λΆ€λͺ¨κ°€ μžκΈ°λ³΄λ‹€ 더 였래 μ‚΄ 수 μžˆλŠ” μžμ‹μ„ μœ„ν•΄ 더 λ§Žμ€ 희생을 ν•˜λŠ” 진화적 의미의 λ²ˆμ‹μˆ˜λͺ…에 따라 μ‘°μ ˆλ˜κΈ°λ„ ν•œλ‹€. μ΄λŸ¬ν•œ 희생적 행동은 μˆ˜ν˜œμžκ°€ κ°–κ³  μžˆλŠ” 감정에 따라 λ‹¬λΌμ§ˆ 것이닀. 남녀가 μ‚¬λž‘μ— λΉ μ§€λŠ” μ΄μœ λ„ λ°”λ‘œ 이런 κ°μ •μ˜ 흐름과 같은 μ΄μΉ˜μ΄λ‹€. λ˜ν•œ 이타적 ν–‰λ™μ˜ μ’…λ₯˜μ™€ μˆ˜μ€€μ€ μƒλ‹Ήν•œ μ •λ„κΉŒμ§€ λ¬Έν™”μ μœΌλ‘œ κ²°μ •λœλ‹€. μΈκ°„μ˜ μ‚¬νšŒμ  μ§„ν™”λŠ” μœ μ „μ μΈ 것보닀 문화적 영ν–₯을 많이 λ°›λŠ” κ²ƒμ²˜λŸΌ

    κ±΄κ°•ν•œ 삢을 μœ„ν•˜μ—¬...

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    20μ„ΈκΈ° 이후뢀터 μ§ˆλ³‘μ˜ ν˜•νƒœκ°€ μ „μ—Όμ„± μ§ˆν™˜μ΄ 점점 κ°μ†Œλ˜λ©΄μ„œ 흑연, 과식, μš΄λ™ λΆ€μ‘± λ“±μœΌλ‘œ 인해 λ°œμƒλ˜λŠ” λ§Œμ„±ν‡΄ν–‰μ„± μ§ˆν™˜ ν˜•νƒœκ°€ μ¦κ°€λ˜μ–΄ μ˜μ‚¬μ˜ 직접적인 치료 ν˜•νƒœλ³΄λ‹€λŠ” μžμ‹ μ΄ μ–΄λ–»κ²Œ κ±΄κ°•ν•œ μƒνƒœλ₯Ό μœ μ§€ν•  것인가에 더 λ§Žμ€ 관심을 κ°€μ§€κ²Œ λ˜λŠ” κ²½ν–₯으둜 μ˜λ£Œμ‹œμˆ μ˜ νŒ¨ν„΄μ΄ λ°”λ€Œμ–΄ 지고 μžˆλ‹€. μ§ˆλ³‘μ„ μ˜ˆλ°©ν•˜κ³ , μ˜€λž˜λ„λ‘ μž₯μˆ˜ν•˜κΈ°λ₯Ό 바라고, 보닀 ν™œλ ₯ μžˆλŠ” λͺ¨μŠ΅μ„ μ°ΎκΈ° μœ„ν•΄μ„œ μ‚Άμ˜ 방식을 κ°œμ„ ν•˜λ―€λ‘œ 얻을 수 μžˆλŠ” 생산적인 μ–΄λ–€ 싀체λ₯Ό νšλ“ν•¨μœΌλ‘œμ¨ 보닀 κ±΄κ°•ν•΄μ§ˆ 수 μžˆμ„ κ²ƒμ΄λΌλŠ” μ‹€μš©μ μΈ 의료 ν˜•νƒœλ‘œ λ³€ν™”λ˜κ³  μžˆλŠ” μ…ˆμ΄λ‹€. 건강에 λŒ€ν•œ 문화적 해석은 건강은 μ–΄λ–€ μƒνƒœκ°€ μ•„λ‹ˆλΌ μ„±μ·¨ν•΄μ„œ μ–»μ–΄μ§€λŠ”, 개인이 μ†Œμœ ν•˜κ³  μ‚¬μš©ν•˜κ³  μ†ŒλΉ„ν•˜λŠ” 싀체적인 μƒμ‚°ν’ˆκ³Όλ„ 같은 κ²ƒμœΌλ‘œ μƒκ°ν•˜λŠ” 것이닀. 즉, 건강은 μ–΄λ–€ 본질적인 μƒνƒœκ°€ μ•„λ‹ˆλΌ 개인이 ν•©λ¦¬μ μœΌλ‘œλ‚˜ μ²΄κ³„μ μœΌλ‘œ μΆ”κ΅¬ν•˜κ³ , 지킀고 μ‹œλ„ν•˜λŠ” μ„±μ·¨λ‘œ μ΄λ£¨μ–΄μ§€λŠ” ꡬ체적인 μƒμ‚°ν’ˆκ³Ό 같은 κ²ƒμ΄λΌλŠ” κ°œλ…μ΄λ‹€. λ•Œλ¬Έμ— 건강은 μ΄λ…ν™”λœ μ–΄λ–€ μƒνƒœλΌκΈ°λ³΄λ‹€λŠ” μ–΄λ–€ μž„λ¬΄λ₯Ό μˆ˜ν–‰ν•˜κΈ° μœ„ν•œ μ‹€μ œμ  κΈ°λŠ₯을 ν•  수 μžˆλŠ” ꡬ체적인 싀체가 λ˜μ–΄μ•Ό ν•œλ‹€λŠ” 것이닀. κ±΄κ°•ν•œ 삢을 μœ μ§€ν•˜κΈ° μœ„ν•΄μ„œ 건강을 μ¦μ§„μ‹œν‚€λŠ” 일이 μ–Όλ§ˆλ‚˜ 효과적인 κ²ƒμΈμ§€λŠ” 이미 μž…μ¦λœ λ°” μžˆλ‹€. 예λ₯Ό λ“€μ–΄, 지속적인 μš΄λ™ ν•˜λ‚˜λ‘œ μ½œλ ˆμŠ€ν…Œλ‘€, ν˜ˆμ••μ˜ 수치λ₯Ό κ°μ†Œμ‹œν‚¬ 수 있고, 심μž₯λ³‘μœΌλ‘œ μΈν•œ μ‚¬λ§μ˜ μœ„ν—˜μ„ 쀄일 수 μžˆλ‹€λŠ” μ¦κ±°λŠ” λ§Žμ€ 연ꡬ, λ°œν‘œλœ λ°” μžˆλ‹€. κ±΄κ°•ν•œ 삢에 λŒ€ν•œ κ°œμΈμ— λŒ€ν•œ μ±…μž„μ„ κ°•μ‘°ν•˜λŠ” 것은 κ±΄κ°•μ˜ μƒλ‹Ήν•œ 뢀뢄을 μ˜μ‚¬κ°€ λ‹΄λ‹Ήν•˜κ³  μžˆμ—ˆλ˜ κΈ°μ‘΄ μ˜λ£Œμ²΄κ³„μ— λŒ€ν•œ λŒ€λ‹¨ν•œ 혁λͺ…일 μˆ˜λ„ μžˆλ‹€. κ±΄κ°•ν•œ 삢을 μœ„ν•˜μ—¬ 건강에 λŒ€ν•œ μ±…μž„μ„ μ˜λ£ŒλΆ€λΆ„μœΌλ‘œλΆ€ν„° λΆ„λ¦¬μ‹œμΌœ κ°œμΈμ—κ²Œ κ·Έ 뢀담을 λŒλ¦¬λ €λŠ” κ²½ν–₯은 λ―Έλž˜μ˜ν•™μ΄ 지ν–₯ν•΄μ•Ό ν•  과제일 μˆ˜λ„ μžˆλ‹€

    μ •μ˜λ‘­κ³  ν’ˆμœ„ μžˆλŠ” 세상 λ§Œλ“€κΈ°

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    사λƒ₯ν•΄μ„œ μ±„μ·¨ν•œ 것듀을 고루고루 λ‚˜λˆ„μ–΄ 먹으며 μ‚΄μ•˜λ˜ μ„κΈ°μ‹œλŒ€ μ‚¬νšŒμ—μ„œλ„ μ§‘λ‹¨μ˜ 행동을 이끌고 갈 μš°λ‘λ¨Έλ¦¬λŠ” μžˆμ—ˆλ‹€. κ·Έ μ‹œλŒ€μ˜ μš°λ‘λ¨Έλ¦¬λŠ” λͺ…μ˜ˆμ™€ 쑴경의 λŒ€μƒμ΄μ—ˆμ§€ ꢌλ ₯을 ν–‰μ‚¬ν•˜λŠ” μ‘΄μž¬λŠ” μ•„λ‹ˆμ—ˆλ‹€. λ†κ²½μ‹œλŒ€λ‘œ λ„˜μ–΄μ˜€λ©΄μ„œ 먹을 것이 풍뢀해지고 μΈκ΅¬λŠ” 점차 λŠ˜μ–΄λ‚˜κ²Œ λ˜λ©΄μ„œ λŒμ•„λ‹€λ‹ˆλ©° μ±„μ§‘ν•˜λ˜ μ‹œκ°„ λŒ€μ‹  λ§ˆμ„μ— ν•¨κ»˜ λͺ¨μ—¬ μ‚¬λŠ” μ‹œκ°„μ΄ λ§Žμ•„μ Έ μž‰μ—¬ μŒμ‹λ¬Όμ„ μΆ•μ ν•˜κ²Œλ„ λ˜λ©΄μ„œ ꢌλ ₯κ³Ό μ•„μšΈλŸ¬ λΆ€κ°€ ν˜•μ„±λ˜κΈ° μ‹œμž‘ν–ˆλ‹€. κ·Έ ν›„, 인λ₯˜λŠ” μ™•μ‘°μ‹œλŒ€μ˜ λͺ°λ½μ„ κ±°μΉ˜λ©΄μ„œ λ₯΄λ„€μƒμŠ€λ₯Ό 맞게 되고, μΈκ°„μ˜ 창쑰정신이 λ°œνœ˜λ˜λ©΄μ„œ κ³Όν•™κΈ°μˆ μ˜ λ°œμ „μœΌλ‘œ μ‚°μ—…ν˜λͺ…을 거쳐 μ˜€λŠ˜λ‚ μ˜ ν’μš”λ‘œμš΄ λ¬Έλͺ…μ‹œλŒ€λ₯Ό μ΄λ£©ν•œ 것이닀. λ¬Έλͺ…μ‹œλŒ€λ₯Ό μ‚΄μ•„κ°€κΈ° μœ„ν•˜μ—¬ 인간은 곡동체λ₯Ό ν˜•μ„±ν•˜λ©° λ‹€λ₯Έ μ‚¬λžŒκ³Ό μ„œλ‘œ μ‚¬λž‘ν•˜λ©° 살기도 ν•˜κ³  경쟁과 승리의 μš•λ§μ„ μ±„μš°λ©° μ‚΄μ•„κ°€κ³  μžˆλŠ” 동물이닀. λ¬Έλͺ…μ‹œλŒ€μ˜ 경제의 속성은 λΆ€μ˜ 창좜과 집쀑에 μžˆλ‹€. 잘 μ‚΄κ²Œ 된 것은 쒋은 μΌμ΄μ§€λ§Œ ν•œνŽΈμ—” λΆ€λ₯Ό λΉΌμ•—κΈ°κ³  μƒμ‘΄μ˜ μœ„κΈ°μ— μ²˜ν•œ μ‚¬λžŒλ“€μ΄ ν•„μ—°μ μœΌλ‘œ μƒκ²¨λ‚˜λŠ” 데 λ¬Έμ œκ°€ μžˆλ‹€. μš°λ¦¬κ°€ 바라고 μ›ν•˜κ³  μžˆλŠ” λ―Έλž˜μ‚¬νšŒλŠ” λˆ„κ΅¬λ‚˜ μ°½μ˜μ„±μ„ λ°œνœ˜ν•˜μ—¬ μ„ μ˜μ˜ κ²½μŸμ„ ν™œλ°œν•˜κ²Œ ν•˜λ©΄μ„œ λ…Έλ ₯ν•œ 만큼 보상을 λ°›κ³ , μ„œλ‘œ λ„μš°λ©°, 생쑴을 보μž₯λ°›μœΌλ©°, μ†Œμœ μ™€ κ³΅μœ κ°€ κ³΅μ‘΄ν•˜λŠ” μ‘°ν™”λ‘­κ³  ν’ˆμœ„ μžˆλŠ” μ‚¬νšŒλ₯Ό μ›ν•˜κ³  μžˆλ‹€. λͺ¨λ“  μ‚¬λžŒλ“€μ€ μžμ‹ μ„ μ‘°κΈˆμ”© μ–‘λ³΄ν•¨μœΌλ‘œμ¨ λ™μΌν•œ 쑰건을 κ°–κ²Œ λ˜λŠ” κ²½μ œκ³΅λ™μ²΄μ‚¬νšŒλ₯Ό 이루어 μ‚΄μ•„ 갈 수 μžˆλŠ” 이상적 μ‚¬νšŒλ₯Ό κ°ˆλ§ν•˜κ³  μžˆλ‹€

    μ§ˆλ³‘μ€ μΌνƒˆ(ι€Έθ„«)이닀

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    μ‚¬λžŒμ΄ μ§ˆλ³‘μ— 걸리면 μ•„ν”„κ²Œ λœλ‹€. μ§ˆλ³‘μ— μ˜ν•œ μ•„ν””κ³Ό 고톡에 λŒ€ν•΄ μ‚¬νšŒν•™μžλ“€μ€ μ§ˆλ³‘(μ•„ν””)을 μΌνƒˆ(ι€Έθ„«)의 ν•œ ν˜•νƒœλ‘œ 보고 μžˆλ‹€. μΌνƒˆμ΄λž€ 정해진 μ‚¬νšŒ 체계 μ•ˆμ—μ„œ μ‚¬νšŒκ·œλ²”μ„ μ–΄κΈ°λŠ” λͺ¨λ“  ν–‰μœ„λ‚˜ ν˜•νƒœλ₯Ό λ§ν•œλ‹€. μ§ˆλ³‘μ΄λž€ 신체에 κ°κ΄€μ μœΌλ‘œ κ°μ§€λ˜λŠ” 병리적 λ³€ν™”κ°€ μ‘΄μž¬ν•œλ‹€λŠ” λœ»μ΄λ‹€. μ–΄λ–€ 아픔을 μ£Όκ΄€μ μœΌλ‘œ λŠλΌλŠ” ν™˜μžμ˜ κ²½ν—˜μ΄ μžˆκ±°λ‚˜ 신체기λŠ₯에 이상이 μžˆλ‹€λŠ” μ˜μ‚¬μ˜ μ†Œκ²¬μ΄ μžˆμ„ λ•Œ μš°λ¦¬λŠ” 일반적으둜 μ§ˆλ³‘μ— κ±Έλ € μžˆλ‹€κ³  말할 수 μžˆλ‹€. μ§ˆλ³‘μ€ μ‚¬λžŒλ“€μ˜ μ‚Άμ˜ μ§ˆμ„œμ™€ 의미λ₯Ό μœ„ν˜‘ν•˜λŠ” κ²ƒμœΌλ‘œ 고톡을 μ΄ˆλž˜μ‹œν‚€λŠ” μ‚¬νšŒμ  ν˜„μƒμ΄λΌ λ³Ό 수 μžˆλ‹€. μ–΄λ–€ μ§ˆν™˜μœΌλ‘œ μ–»μ–΄μ§€λŠ” μΌνƒˆμ€ μ‚¬νšŒμ μΈ 정상적 의무λ₯Ό μΌμ‹œμ μœΌλ‘œ νŠΉκΆŒμ„ λΆ€μ—¬λ°›μ•„ 정상적인 μ‚¬νšŒμ  역할을 면제 받기도 ν•œλ‹€. 예λ₯Ό λ“€μ–΄, 감기 같은 것은 κ°€λ²Όμš΄ μΌνƒˆμ΄λ©° 폐렴은 μ‹¬ν•œ μΌνƒˆμ΄ λ˜λŠ” μ…ˆμ΄λ‹€. 말기 μ•” 같은 것은 정상적인 μ˜λ¬΄μ—μ„œ μ˜μ›νžˆ 면제되고 절망적인 μΌνƒˆμ΄λž€ νŠΉμ„±μ΄ κ³ λ €λ˜μ–΄ μΆ”κ°€λ˜λŠ” νŠΉκΆŒμ„ 뢀여받을 μˆ˜λ„ μžˆλ‹€. μ§ˆλ³‘μ΄ μΌνƒˆμ΄λΌλ©΄ μΌνƒˆμ€ κΈ°λŒ€λ˜λŠ” ν˜•νƒœλ₯Ό μ–΄κΈ΄ κ²ƒμœΌλ‘œ 생각할 수 μžˆλ‹€. μ‚¬νšŒκ°€ μ‚¬λžŒλ“€μ΄ λ²”μ£„μžκ°€ λ˜μ§€ μ•ŠκΈ°λ₯Ό λ°”λΌλŠ” κ²ƒμ²˜λŸΌ 아프지 μ•ŠκΈ°λ₯Ό λ°”λΌλŠ” 것은 λ‹Ήμ—°ν•œ 일이닀. μš°μ„  μ§ˆν™˜μ€ λΆˆνŽΈν•˜κ³  μ£½μŒμ„ 내포할 μˆ˜λ„ 있으며, μƒλ¬Όν•™μ μœΌλ‘œλ‚˜ μ‚¬νšŒν•™μ  κΈ°λŠ₯을 μΌμ‹œμ  λ˜λŠ” 영ꡬ적으둜 λ°©ν•΄ 받을 수 μžˆμ–΄ 일상 업무와 κΈ°λŠ₯ μˆ˜ν–‰ λŠ₯λ ₯을 λ–¨μ–΄λœ¨λ¦°λ‹€. μ•„ν”ˆ μ‚¬λžŒμ€ κ±΄κ°•μ˜ κ·œλ²”μ—μ„œ λ²—μ–΄λ‚˜λŠ” 것이긴 ν•˜μ§€λ§Œ λ²•μ μœΌλ‘œ μΌνƒˆμ˜ κ°œλ…μ΄ λœ»ν•˜λŠ” κ²ƒμ²˜λŸΌ μ‚¬νšŒ κ·œλ²”μ„ 거슀λ₯΄μ§€λŠ” μ•ŠλŠ” 것이닀

    Poly(alpha-hydroxy acids) 제제 생뢄해성 μ°¨νλ§‰μ˜ 치주쑰직 μž¬μƒμœ λ„ λŠ₯λ ₯에 κ΄€ν•œ 쑰직학적 μž₯κΈ° κ΄€μ°°

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    The recent trend of research and development on guided tissue regeneration focuses on the biodegradable membranes, which eliminate the need for subsequent surgical removal. They have demonstrated significant and equivalent clinical improvements to the ePTFE membranes. This study evaluate guided tissue regeneration wound healing in surgically induced intrabony periodontal defects following surgical treatment with a synthetic biodegradable membranes, made from a copolymer of glycolide and lactide, in 8 beagle dogs. After full thickeness flap reflection, exposed buccal bone of maxillary and mandibular canine and premolar was removed surgically mesiodistally and occlusoapically at in size for preparation of periodontal defects. In experimental sites a customized barrier was formed and fitted to cover the defect. Flap was replaced slightly coronal to CEJ and sutured. Plaque control program was initiated and maintained until completion of the study. In 4, 8, 16 and 24 weeks after surgery, the animals were sacrificed and then undecalcified specimens were prepared for histologic evaluation. Histologic examination indicated significant periodontal regeneration characterized by new connective tissue attachment, cementum formation and bone formation. These membranes showed good biocompatibility throughout experiodontal period. The barriers had been completely resorbed with no apparent adverse effect on periodontal wound healing at 24 weeks. These results implicated that present synthetic biodegradable membrane facilitated guided tissue regeneration in periodontal defect.이 μ—°κ΅¬λŠ” 1996년도 μ„œμšΈλŒ€ν•™κ΅λ³‘μ› μž„μƒκ³΅λ™μ—°κ΅¬λΉ„(1-96-75)의 지원에 μ˜ν•΄ μ΄λ£¨μ–΄μ‘ŒμŠ΅λ‹ˆλ‹€

    μ—Όν™”μ„Έν‹Έν”Όλ¦¬λ””λŠ„ λΆ„λ§μ˜ μΉ˜νƒœμ œκ±°μ™€ μΉ˜μ€μ—Ό μ™„ν™” νš¨κ³Όμ— κ΄€ν•œ μž„μƒμ‹œν—˜

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    To evaluate the effect of cetylpyridinium chloride in a powder form when used concomitantly with a commercial flouride containing tooth paste on inhibition of plaque formation, on gingivitis, and on irritation of oral mucosa, a double--blind, randomized parallel study was set up. Cetylpyridinium chloride was incorporated into a ligh brown colored powder with menthol added for scent. There were no diffemces between the active agent and the placebo which did not contain cetylpyridinium chloride in appearance, color, smell, taste, or dispenser. 98 healthy volunteers were assigned to one of two groups: brushing 3 times a day with flouride toothpaste and cetylpyridinium chloride powder, or brushing 3 times a day with flouride toothpaste and placebo. Before the test period, the subjects received through tooth cleaning and polishing. At basteline, GI, PI, BOP, and GCF of the Ramfjord teeth were measured in the experimental and placebo groups including 58 and 42 subjects repectively, After 4 weeks, GI, PI, BOP, GCF, compliance, irritation of the oral mucosa(redness, pus drainage, edema) and adverse reactions were measured. The PI, GI, and BOP of the experimental group recorded at baseline are 0.190.19, 0.420.31, and 0.080.15. These scores showed significant decrease after 4 weeks of test period(0.110.15, 0.220.24, 0.020.09 repectively at the end of the study) and inhibition of plaque accumulation and resolution of gingival inflammation could be observed. GCF shoed slight increase but this was not statistically different. Comparison of changes in measured scores of control and experimental groupshow GI, PI of the test indices have decreased. Test group showed significantly greater decrease in gingivitis and plaque accumulation after 4 weeks. GCF and BOP also showed greater decrease thant the control group but this difference was not statistically significant. At no time of the study period did any of the subjects show signs of irritation of the oral mucosa or adverse reactions. Following conclusions could be obtained from this study. The combined use of cetl powder and flouride toothpaste showed greater inhibition of plaque accumulation and greater decrease of gingivitis than use of flouride toothpaste with placebo agent

    λ―Έλ…Έν΄λ¦°μ²¨λΆ€μ œμ˜ μ§€μΉ˜μ£Όμœ„μ—Όμ— λŒ€ν•œ μœ νš¨μ„±λ° μ•ˆμ „μ„±ν‰κ°€λ₯Ό μœ„ν•œ μœ„μ•½λŒ€μ‘° 이쀑맹검 제3상 λΉ„κ΅μž„μƒμ‹œν—˜

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    This clinical study was designed to determine the clinical and microbiological outcomes and safety of using minocycline loaded polycaprolactone strip for pericoronitis patients. 64 patients showing symptoms and signs of pericoronitis were enrolled according to the inclusion criteria in this double blind study. They were randomly assigned to two groups. 32 patients comprised control group and they received only polycaprolactone films in pericoronal spaces, and another 32 patients comprised experimental group and they received polycaprolactone films loaded with 30% minocycline. Informed consent was obtained from all the participants before beginning the study. At the initial visit, gingival index(GI), papillary bleeding index(PBI), amount of gingival crevicular fluid(GCF) were recorded, and microbiological sampling was done. Then, loaded or unloaded polycaprolactone film was inserted into the pericoronal spaces. No drug was prescribed excepting this film. After one week, clinical and microbiological exam was repeated. Presence of any side effects or inconveniences were checked. Chi-square test and t-test was performed to compare outcomes. At baseline, there were no significant differences in all the criteria between experimental group and control group. Experimental group showed significant improvement compared with control group both in GI(p<0.01) and PBI(p<0.01). The amount of GCF of the experimental group was significantly decreased compared with the control group(p<0.01) and baseline(p<0.01). In microbiological study, percentage of motile rod was prominently decreased in the experimental group. Also, aerobic(p<0.001), anaerobic(p<0.001) and black pigmented(p<0.01) bacteria were significantly decreased from the baseline. Furthermore, no side effects or inconveniences was reported in the experimental group. From this study, it was concluded that insertion of polycaprolactone film with 30% minocycline into the pericoronal spaces would be effective and safe treatment for pericoronitis.λ³Έ μ—°κ΅¬λŠ” 1999년도 (μ£Ό)λ™κ΅­μ œμ•½μœ„νƒμž„μƒμ—°κ΅¬λΉ„μ˜ 지원에 μ˜ν•œ κ²°κ³Όμž…λ‹ˆλ‹€

    ν•œκ΅­μΈ μΉ˜μ£Όκ°μ—Όν™˜μžμ—μ„œμ˜ Prevotella intermedia와 Prevotella nigrescens의 λ°œν˜„λΉˆλ„

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    Prevotella intermedia has been implicated as a potent pathogen in many kinds of periodontal, pulpal and periapical diseases. However, it has been isolated from periodontally healthy adults and from edentulous children as well. The intraspecies heterogeneity of Prevotella intermedia has been demonstrated in early studies and finally Shah & Gharbia confirmed the existence of 2 DNA homology groups and proposed dividing Prevotella intermedia into 2 species, Prevotella intermedia and Prevotella nigrescens. This study was designed to examine the frequency of Prevotella intermedia and Prevotella nigrescens in diseased periodontal pockets and healthy gingival sulcus of Korean people by PCR based on 16s ribosomal DNA sequence. One hundred adults who had adult periodontitis but not taken any periodontal treatment or antibiotics during previous 6 months and 50 adults who had healthy periodontal tissue were selected for this study. The sulcular fluid was collected into VMGA by sterilized paper point and diluted to 1,000 times in anaerobic chamber. of sample was cultured in for 10 days. Among the bacterial colonies, BPB were selected and cultured in BHI broth and then Prevotella intermedia was identified through Gram staining and biochemical test. Identified Prevotella intermedia was cultured again and centrifuged. DNA was extracted from the pellet using several reagents. PCR was performed by previously designed primer. The results were followed. 1. BPB were isolated from 39 of 100 samples of diseased periodontal pockets(39%). 2. Prevotella intermedia was identified from 24 of 39 BPB samples. 3. Among 24 Prevotella intermedia, 21 were confirmed as Prevotella inter - media(87.5) and 2 were confirmed as Prevotella nigrescens(8.33%). 4. BPB were isolated from 9 of 50 samples of periodontally healthy patients. Among them only two were identified as Prevotella intermedia, that is, one was confirmed as Prevotella intermedia and the other was Prevotella nigrescens.이 μ—°κ΅¬λŠ” 1997년도 μ„œμšΈλŒ€ν•™κ΅λ³‘μ› λŒ€ν˜•κ³΅λ™μ—°κ΅¬λΉ„ 지원에 μ˜ν•œ κ²°κ³Όμž…λ‹ˆλ‹€

    κ΄€μ€‘μ˜ ν•­κ· μž‘μš© 및 세포독성에 κ΄€ν•œ 연ꡬ

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    The purpose of this study was to evaluate the antimicrobial activity of Crassirhzimae rhizoma and its possible use as an oral antiseptics for prevention of periodontitis. Its antibacterial activity against periodontopathic microorganisms including Actinobacillus actiomycetem - comitans, Capnocytophaga ochracea, Streptococcus mutans, Porphyromonas gingivalis, Prevotella intermedia, Actinomyces viscosus, Fusobacterium nucleatumwas evaluated via modified stab culture method. The cytotoxicity against gingival fibroblasts and rat osteoblasts was investigated via [3H^3H]thymidine incorporation and cellular activity was investigated via MTT assay. Chlorhexidine was used as control group. Crassirhizomae rhizoma was prepared at concentrations of 0.2, 0.15, 0.1, 0.05%. Chlorhexidine was also prepared at the same concentration. Crassirhizomae rhizoma showed lower antimicrobial antivity against these microorganism than chlorhexidine, but this difference was not significant. And, Crassirhzomae rhizoma showed more cellular activity and less cytotoxicity than chlorhexidine on human gingival fibrablast and rat osteoblast. This study suggests that Crassirhzomae rhizoma might be a candidate for a safe oral antiseptic for the prevention and treatment of periodontal disease.이 μ—°κ΅¬λŠ” 1997년도 μ„œμšΈλŒ€ν•™κ΅ 병원지정연ꡬ비 지원에 μ˜ν•œ κ²°κ³Όμž…λ‹ˆλ‹€
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