24 research outputs found
μμ°λΆμ μΉμ£Όμ§ν νμ±λμ μ‘°μ°κ³Όμ μκ΄κ΄κ³μ κ΄ν μ°κ΅¬
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.μ΄ μ°κ΅¬λ 1996λ
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μ΄νμ νλμ΄ λ§μ μΈμμ μ΄κ³ μΆλ€
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κ²μ μ΄νμ£Όμ(Altruism), λλ μ΄νμ νλμ΄λΌκ³ νλ€. μ΄νμ νλμ μνμκ° λꡬ보λ€λ μΉμ²κ΄κ³μ΄κ±°λ, μμ, λΆλͺ¨ κ΄κ³μμ μ μΌ λ§μ΄ μΌμ΄λ¨μ λΉμ°ν μΌμ΄λ€. μΈλ₯μ μμ¬μ μλΉν κΈ°κ° λμ μ§λ°°ν΄ μλ μ¬νμ λ¨μκ° κ°μ‘± λ° κ°κΉμ΄ μΉμ‘±λ€λ‘ μ΄λ£¨μ΄μ§ μΉλ°ν κ΄κ³ μ€μ μ΄μλ€. μ΄λ¬ν μμ§λ ₯μ΄ μμμ΄λ λ€λ₯Έ ν¬μ λ₯λ³΄λ€ νμΈ΅ κ°λ ₯νκ² κ΅¬νλ κ²μ μΈκ° κ³ λμ μ§λ₯μ ν΅ν΄μ λμ± κ²¬κ³ ν λ κ²μ΄λ€. μκΈ°μ μΉμ²μ λλλ€λ κ²μ μ μ μκ° μ€μ€λ‘ λλ κ²κ³Ό κ°μ λ»μ΄λ€. μ΄ν νλμ μΌμΌν€λ μ μ μκ° μ€μ€λ‘ μ΄μ΅μ μ»κΈ° λλ¬Έμ μ΄ν νλμ΄ μ§νλμ΄ νμ° μ νμ΄ λλ μ
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μμ μ‘΄κ²½μ λμμ΄μμ§ κΆλ ₯μ νμ¬νλ μ‘΄μ¬λ μλμλ€. λκ²½μλλ‘ λμ΄μ€λ©΄μ λ¨Ήμ κ²μ΄ νλΆν΄μ§κ³ μΈκ΅¬λ μ μ°¨ λμ΄λκ² λλ©΄μ λμλ€λλ©° μ±μ§νλ μκ° λμ λ§μμ ν¨κ» λͺ¨μ¬ μ¬λ μκ°μ΄ λ§μμ Έ μμ¬ μμλ¬Όμ μΆμ νκ²λ λλ©΄μ κΆλ ₯κ³Ό μμΈλ¬ λΆκ° νμ±λκΈ° μμνλ€. κ·Έ ν, μΈλ₯λ μμ‘°μλμ λͺ°λ½μ κ±°μΉλ©΄μ λ₯΄λ€μμ€λ₯Ό λ§κ² λκ³ , μΈκ°μ μ°½μ‘°μ μ μ΄ λ°νλλ©΄μ κ³ΌνκΈ°μ μ λ°μ μΌλ‘ μ°μ
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μλμ κ²½μ μ μμ±μ λΆμ μ°½μΆκ³Ό μ§μ€μ μλ€. μ μ΄κ² λ κ²μ μ’μ μΌμ΄μ§λ§ ννΈμ λΆλ₯Ό λΉΌμκΈ°κ³ μμ‘΄μ μκΈ°μ μ²ν μ¬λλ€μ΄ νμ°μ μΌλ‘ μ겨λλ λ° λ¬Έμ κ° μλ€. μ°λ¦¬κ° λ°λΌκ³ μνκ³ μλ λ―Έλμ¬νλ λꡬλ μ°½μμ±μ λ°ννμ¬ μ μμ κ²½μμ νλ°νκ² νλ©΄μ λ
Έλ ₯ν λ§νΌ 보μμ λ°κ³ , μλ‘ λμ°λ©°, μμ‘΄μ 보μ₯λ°μΌλ©°, μμ μ 곡μ κ° κ³΅μ‘΄νλ μ‘°νλ‘κ³ νμ μλ μ¬νλ₯Ό μνκ³ μλ€. λͺ¨λ μ¬λλ€μ μμ μ μ‘°κΈμ© μ보ν¨μΌλ‘μ¨ λμΌν 쑰건μ κ°κ² λλ κ²½μ 곡λ체μ¬νλ₯Ό μ΄λ£¨μ΄ μ΄μ κ° μ μλ μ΄μμ μ¬νλ₯Ό κ°λ§νκ³ μλ€
μ§λ³μ μΌν(ιΈθ«)μ΄λ€
μ¬λμ΄ μ§λ³μ 걸리면 μνκ² λλ€. μ§λ³μ μν μνκ³Ό κ³ ν΅μ λν΄ μ¬ννμλ€μ μ§λ³(μν)μ μΌν(ιΈθ«)μ ν ννλ‘ λ³΄κ³ μλ€. μΌνμ΄λ μ ν΄μ§ μ¬ν μ²΄κ³ μμμ μ¬νκ·λ²μ μ΄κΈ°λ λͺ¨λ νμλ ννλ₯Ό λ§νλ€. μ§λ³μ΄λ μ 체μ κ°κ΄μ μΌλ‘ κ°μ§λλ λ³λ¦¬μ λ³νκ° μ‘΄μ¬νλ€λ λ»μ΄λ€. μ΄λ€ μνμ μ£Όκ΄μ μΌλ‘ λλΌλ νμμ κ²½νμ΄ μκ±°λ μ 체기λ₯μ μ΄μμ΄ μλ€λ μμ¬μ μκ²¬μ΄ μμ λ μ°λ¦¬λ μΌλ°μ μΌλ‘ μ§λ³μ κ±Έλ € μλ€κ³ λ§ν μ μλ€. μ§λ³μ μ¬λλ€μ μΆμ μ§μμ μλ―Έλ₯Ό μννλ κ²μΌλ‘ κ³ ν΅μ μ΄λμν€λ μ¬νμ νμμ΄λΌ λ³Ό μ μλ€. μ΄λ€ μ§νμΌλ‘ μ»μ΄μ§λ μΌνμ μ¬νμ μΈ μ μμ μ무λ₯Ό μΌμμ μΌλ‘ νΉκΆμ λΆμ¬λ°μ μ μμ μΈ μ¬νμ μν μ λ©΄μ λ°κΈ°λ νλ€. μλ₯Ό λ€μ΄, κ°κΈ° κ°μ κ²μ κ°λ²Όμ΄ μΌνμ΄λ©° νλ ΄μ μ¬ν μΌνμ΄ λλ μ
μ΄λ€. λ§κΈ° μ κ°μ κ²μ μ μμ μΈ μ무μμ μμν λ©΄μ λκ³ μ λ§μ μΈ μΌνμ΄λ νΉμ±μ΄ κ³ λ €λμ΄ μΆκ°λλ νΉκΆμ λΆμ¬λ°μ μλ μλ€. μ§λ³μ΄ μΌνμ΄λΌλ©΄ μΌνμ κΈ°λλλ ννλ₯Ό μ΄κΈ΄ κ²μΌλ‘ μκ°ν μ μλ€. μ¬νκ° μ¬λλ€μ΄ λ²μ£μκ° λμ§ μκΈ°λ₯Ό λ°λΌλ κ²μ²λΌ μνμ§ μκΈ°λ₯Ό λ°λΌλ κ²μ λΉμ°ν μΌμ΄λ€. μ°μ μ§νμ λΆνΈνκ³ μ£½μμ λ΄ν¬ν μλ μμΌλ©°, μλ¬Όνμ μΌλ‘λ μ¬ννμ κΈ°λ₯μ μΌμμ λλ μꡬμ μΌλ‘ λ°©ν΄ λ°μ μ μμ΄ μΌμ μ
무μ κΈ°λ₯ μν λ₯λ ₯μ λ¨μ΄λ¨λ¦°λ€. μν μ¬λμ 건κ°μ κ·λ²μμ λ²μ΄λλ κ²μ΄κΈ΄ νμ§λ§ λ²μ μΌλ‘ μΌνμ κ°λ
μ΄ λ»νλ κ²μ²λΌ μ¬ν κ·λ²μ κ±°μ€λ₯΄μ§λ μλ κ²μ΄λ€
Poly(alpha-hydroxy acids) μ μ μλΆν΄μ± μ°¨νλ§μ μΉμ£Όμ‘°μ§ μ¬μμ λ λ₯λ ₯μ κ΄ν μ‘°μ§νμ μ₯κΈ° κ΄μ°°
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.μ΄ μ°κ΅¬λ 1996λ
λ μμΈλνκ΅λ³μ μμ곡λμ°κ΅¬λΉ(1-96-75)μ μ§μμ μν΄ μ΄λ£¨μ΄μ‘μ΅λλ€
μΌνμΈνΈνΌλ¦¬λλ λΆλ§μ μΉνμ κ±°μ μΉμμΌ μν ν¨κ³Όμ κ΄ν μμμν
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¨λΆμ μ μ§μΉμ£ΌμμΌμ λν μ ν¨μ±λ° μμ μ±νκ°λ₯Ό μν μμ½λμ‘° μ΄μ€λ§Ήκ² μ 3μ λΉκ΅μμμν
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΅¬λ 1999λ
λ (μ£Ό)λκ΅μ μ½μνμμμ°κ΅¬λΉμ μ§μμ μν κ²°κ³Όμ
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νκ΅μΈ μΉμ£Όκ°μΌνμμμμ Prevotella intermediaμ Prevotella nigrescensμ λ°νλΉλ
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.μ΄ μ°κ΅¬λ 1997λ
λ μμΈλνκ΅λ³μ λν곡λμ°κ΅¬λΉ μ§μμ μν κ²°κ³Όμ
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κ΄μ€μ νκ· μμ© λ° μΈν¬λ μ±μ κ΄ν μ°κ΅¬
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 []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.μ΄ μ°κ΅¬λ 1997λ
λ μμΈλνκ΅ λ³μμ§μ μ°κ΅¬λΉ μ§μμ μν κ²°κ³Όμ
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