• 제목/요약/키워드: connective tissue

검색결과 913건 처리시간 0.023초

Simultaneous placement of an interpositional free gingival graft with nonsubmerged implant placement

  • Sohn, Joo-Yeon;Park, Jung-Chul;Cho, Kyoo-Sung;Kim, Chang-Sung
    • Journal of Periodontal and Implant Science
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    • 제44권2호
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    • pp.94-99
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    • 2014
  • Purpose: Various surgical techniques target achieving adequate keratinized tissue around dental implants; however, these techniques are usually performed before implant placement or upon the exposure of submerged implants. The aim of this case report is to describe a simultaneous placement of an interpositional free gingival graft (iFGG) with that of nonsubmerged implants in a patient lacking keratinized tissue and to assess the longterm outcome of this grafted gingiva. Methods: A wedge-shaped free gingnival graft (FGG), including an epithelium-connective tissue (E-C) portion and a connective-tissue-only (CT) portion, was harvested from the palate. The CT portion was inserted under the buccal flap, and the E-C portion was secured tightly around the implants and to the lingual flap. Results: At the 8-year follow-up, the gingival graft remained firmly attached and was well maintained, with no conspicuous shrinkage or reported discomfort during oral hygiene procedures. The use of an iFGG at a nonsubmerged implant placement minimizes the required number of surgical steps and patient discomfort while providing adequate buccal keratinized tissue. Conclusions: Therefore, the technique could be considered an alternative method in increasing the keratinized tissue for cases that have a minimal amount of keratinized tissue.

Microsurgical Approach for Root Coverage of Receding Gingiva in the Esthetic Zone

  • Mohan, Ranjana;Jain, Rohit
    • Archives of Reconstructive Microsurgery
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    • 제22권2호
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    • pp.69-73
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    • 2013
  • Facial esthetics and smiling are key components in nonverbal communication and have an important role in determination of the first impression of a person. The various components of the smile in dental esthetics include Gingival scaffold, lip framework, and Teeth. The periodontist creates a smile by performing various periodontal plastic microsurgery procedures for management of mucogingival problems. A 25-year-old patient reported to the Department of Periodontology at Teerthanker Mahaveer Dental College and Research Center, Moradabad, Northern India, with the chief complaint of long looking teeth in the upper jaw, making him conscious while smiling. Miller class I gingival recession with Maxillary left canine (23) was diagnosed. Periodontal plastic microsurgery employing double papilla grafting with connective tissue graft harvested from the palate in order to cover denuded root was performed using microsurgical instruments and microsuturing with 6-0 suturing material under magnification. Healing was uneventful, with achievement of 100% root coverage of denuded root after three months. The patient was highly impressed and satisfied with his enhanced smile.

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두툽상어 연골 조직에서 생리 활성 유전자들의 cDNA 클로닝 (Cloning of various bioreactive genes from cartilage tissues of Scyliorhinus torazame)

  • 김지태;김명순;장은령;김영진;김규원
    • 생명과학회지
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    • 제10권5호
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    • pp.533-541
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    • 2000
  • Compared to mammal including human, many bioreactive genes that regulate various biological events has not been cloned and characterized yet in fishes, especially shark, Scyliorhinus torazame. In orther to isolate genes that regulate physiological processes in cartilaginors fishes, we performed reverse transcription-polymerase chain reaction (RT-PCR) using the RNA of cartilage tissues of Scyliofhinus torazame. The cloned partial genes were 86%, 80%, 73%, 84%, 75%, 79% identical to $\alpha$- actin, 90-kDa heat-shock protein, methyle-neterahydrofolate dehydrogenase-methenyltertrahydrofolate cyclohudrolase-formyltetrahydrofolate synthetase, ubiquitin, glutamine synthetase and connective tissue growth factor genes of human, respectively. They also have similar nucleotide sequence homologues with those of another species. These partial bioreactive genes elucidated in this study may support to studies of phylogenetic analysis based on evolutionary relationships between shark and other species.

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닭에서 발생한 다발성 육아종증 (Polygranulomatosis in the domestic chickens)

  • 이남진;조경오;강문일
    • 한국수의병리학회지
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    • 제7권1호
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    • pp.67-69
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    • 2003
  • Three mature layer chickens from a farm in which chickens showed green diarrhea, cyanosis, lethargy, loss of appetite were pathologically examined. Grossly, multiple variable sized caseous nodules were detected in the liver, intestinal serosa and mesentery. In addition, parathypoid nodules in the liver and fibrous serositis on the several peritoneal organs and tissues were noticed. One of spleens had multiple infarction areas. Histologically caseous nodules consisted of central caseous core and peripheral epithelioid cells overlying the fibrous connective tissue. Multinucleated giant cells were scattered between the epithelioid cells and fibrous connective tissue. In these nodules Gram negative cocobacilus bacterial colonies were present, whereas Periodic Schiff reaction and Ziehl-Neelsen stain detected neither fungi nor acid fast bacteria. From these results multiple granulomas might be induced by Escherichia coli. In addition, severe Ascafdiodf and Salmonellosis were coinfected in these chickens.

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한우(韓牛)에 발생(發生)한 Polycystic Kidney (Pathological Observations of Polycystic Kidney in a Korean Native Calf)

  • 곽수동;이차수
    • 대한수의학회지
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    • 제19권1호
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    • pp.27-32
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    • 1979
  • This paper dealt with the macroscopical and histopathological observations on the polycystic kidney occurred in a Korean native calf aged about a year. The results summarized are as follows: 1. In macroscopical findings, numerous cysts in the bilateral kidneys were seen under the renal capsule, and the cysts were various in size and clear or cloudy in their contents. The cysts in the inner area of the renal cortex were smaller than those of the outer area of the renal cortex in size and in number. 2. In microscopical findings, marked dilatations of Bowman's spaces and convoluted tubules were prominant feature. Numerous cysts with or without eosinophilic materials were contained atrophic glomerulus. prolferation of fibrous connective tissue, atrophy of convoluted tubules were also observed. Inner walls of the cysts were surrounded by cuboidal cells, sguamous cells or fibrous connective tissue. 3. This case was regarded as congenital polycystic kidney belonged to type III of Osathanondh and Potter.

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Constitutive Model of Tendon Responses to Multiple Cyclic Demands (II) -Theory and Comparison-

  • Chun, Keyoung-Jin;Robert P. Hubbard
    • Journal of Mechanical Science and Technology
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    • 제15권9호
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    • pp.1281-1291
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    • 2001
  • The hereditary integral form of a quasi-linear viscoelastic law has been employed. Four new concepts have been employed: 1. a reduced relaxation function with a non-linear exponential function of time, 2. an inverse method to determine the scale factor of the elastic response, 3. an instant elastic recovery strain during unloading, and 4. the results of a constitutive model for cyclic tests may be a function of the Heavyside class. These concepts have been supported by agreement between measured and predicted responses of soft connective tissue to three types of multiple cyclic tests which include rest periods of no extension and alternations between different strain levels. Such agreement has not been attained in the previous studies. Chun and Hubbard (2001) is our companion experimental analysis paper.

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The Effects of the Injection of Proteolytic Enzymes and Ginger Extract into M. pectoralis profundus of Beef on Intramuscular Connective Tissue and Myofibrillar Protein

  • Moon, Sung-Sil;Ko, Kyung-Hee;Mullen, Ann-Maria;Ward, Paddy;Park, Yong-Hyun;Park, Su-Min
    • 한국축산식품학회:학술대회논문집
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    • 한국축산식품학회 2006년도 정기총회 및 제37차 춘계 국제학술발표대회
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    • pp.94-97
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    • 2006
  • Proteolytic enzymes and ginger extract were effective on tenderising M. pectoralis profundus, resulting in higher collagen solubility, a decrease of melting denaturation temperature and WBSF compared with the control. Comparing all treatments, bromelain treatment showed to be higher for collagen solubility than other treatments, but no significant differences in onset and melting denaturation temperature of intramuscular connective tissue were found. These corresponded to WBSF results. The present study indicates that ginger extract might be effectively able to be utilised in pilot level as better alternatives to bromelain and papain for tenderisation of tough meat, such as cull cow and beef cuts with many collagen.

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Safety of radiotherapy in patients with Behcet's disease: a case report and review of the literature

  • Ko, Dahui;Kim, Young Suk;Choi, Yunseon
    • Journal of Medicine and Life Science
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    • 제18권2호
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    • pp.35-39
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    • 2021
  • Exaggerated acute and late toxicities following radiotherapy have been reported in patients with pre-existing connective tissue diseases, such as systemic lupus and scleroderma. Behcet's disease (BD) is a relapsing multisystem connective tissue disease characterized by vasculitis in the mucocutaneous, ocular, gastrointestinal, respiratory, neurologic, urogenital, articular, and cardiovascular systems. Data concerning the relationship between radiotherapy toxicity and BD are limited in the literature. Here, we report a case of lung cancer treated with radiotherapy (60 Gy) in a patient with BD. No severe radiation-induced toxicity was observed. Radiation-induced toxicity in patients with BD has also been discussed.