• Title/Summary/Keyword: Sulcus

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Ventral Striatal Connections of Unimodal and Multimodal Cortex of the Superior Temporal Sulcus in Macaque Monkeys(Macacca nemestrina)

  • Jung, Yong-Wook;Hong, Sung-Won
    • Animal cells and systems
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    • v.8 no.4
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    • pp.319-328
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    • 2004
  • Extrinsic connections between the cortex of the superior temporal sulcus (STS) and the ventral striatum in pigtail macaque monkeys (Macacca nemestrina) were studied by injection of retrograde tracers into the ventromedial caudate nucleus, the ventral and central shells of the nucleus accumbens (NA), the dorsal core of the NA, and the ventrolateral putamen. In the present study, we demonstrate that the projections from the unimodal (area TAa, IPa, TEa, and TEm) and the multimodal (area TPO and PGa) sensory association areas in the STS mainly terminate in the ventromedial caudate nucleus as well as in the ventral and central shells of the NA. However, there are only few projections to the dorsal core of the NA and the ventrolateral putamen from the sensory association cortex in the STS. Based on these differential neural connections between the subterritories of the ventral striatum and the sensory association areas, the ventromedial caudate nucleus and the shells of NA appear to be major integration sites for sensory input from the STS and functionally different from the dorsal core of NA and the ventrolateral putamen.

The Clinical Study on ShrinKage Rate of Graft following Strip Gingival Autografts (Strip 치은자가이식술후 이식편의 수축률에 관한 임상적 연구)

  • Jung, Hae-Su;Lim, Sung-Bin;Chung, Chin-Hyung
    • Journal of Periodontal and Implant Science
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    • v.27 no.3
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    • pp.549-559
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    • 1997
  • The purpose of this study was to evaluate clinical changes in graft size after treatment with strip gingival autograft in human. 57 premolar teeth in 27 patients having the following mucogingival problems were selected. The width of extension, attached gingiva including free marginal gingiva, width of transplant and clinical sulcus depth were measured at the initial examination, 2, 12 and 24 weeks following the strip gingival autograft and free gingival autograft. The change of width of extension, attached gingiva including free marginal gingiva, width of transplant and clinical sulcus depth according to healing process in both graft procedures was statistically analyzed by repeated measure ANOVA test and independent t-test using SPSS program. The results were as follows : 1. The change of keratinized gingiva in both graft procedures was increased significantly at 24 weeks post-op. 2. The clinical sulcus depth exhibited no marked changes throughout the entire investigation in both graft procedures. 3. No dimensional variation was seen in graft size in both graft procedures. 4. Shrinkage did not differ significantly in both graft procedures. From the day of grafting to 24 weeks after surgery the percentages of shrinkage were : strip gingival autograft 28% and free gingival autograft 29%.

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CLINICAL STUDY OF THE DEPTH OF THE GINGIVAL SULCUS IN THE PRIMARY DENTITION ON KOREAN CHILDREN (한국인 소아의 유치치열에서 치간열궤의 깊이에 관한 임상학적 연구)

  • Park, In-Ja
    • The Journal of the Korean dental association
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    • v.9 no.12
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    • pp.791-795
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    • 1971
  • Thirty-four children who were patients at the Pedodontic Department of Infirmary of Dental College, S.N.U., aged from 3 years 1 month to 6 years 10 months. One quadrant jaw was measured for each child, Each of the 5 teeth was measured in 6 specific areas, therefore, a total of 1,020 measurements were observed. The results were as follows: 1. Facial surface was the shallowest of all. It was 0.14 mm. shallower than lingual, 0.62mm. shallower than mesial, 0.98mm. shallower than distal. 2. The sulcus generally increased in depth from anterior to posterior. 3. The anterior segment in the maxilla was the shallowest of all. It was 0.68mm. shallower than posterior of maxilla, 0.08 mm. shallower than anterior of mandible, 0.63 mm. shallower than posterior of mandible. 4. The most frequent measurement observed in the both jws was 1.4mm. 5. The mean for the complete anterior segment in the maxilla was 1.3±0.50 mm. In the posterior segment of the maxilla, the mean was 2.0v0.74mm. In the mandible, the mean for the anterior segment was 1.4±0.46 mm. In the posterior segment of the mandible, the mean was 2.0±0.56 mm. 6. The mean gingival sulcus depth for the entire Primary Dentition was 1.7±0.59 mm.

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THE EFFICACY AND SAFETY OF 6% HYDROGEN PEROXIDE AS HOME TOOTH BLEACHING GEL (가정용치아미백제로서의 6% 과산화수소용액의 효과와 안전성)

  • Han, Soo-Boo;Park, Sang-Hyun;Moon, Hyeock-Soo
    • Journal of Periodontal and Implant Science
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    • v.24 no.2
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    • pp.433-440
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    • 1994
  • The purpose of this investigation was to study the efficacy and safety of 6% hydrogen peroxide gel as a daily home tooth bleaching gel. The subjects consisted of 20 male dental students representing a variety of acquired stain and each subject participated for a 4-week period. Tooth color analysis(Shade determination), sulcus bleeding index, probing depth and probing attachment level were done and recorded at baseline and at the end of each week of study. The results indicated that home bleaching gel containing 6% hydrogen peroxide was effective and caused no gingival inflammation. Sulcus bleeding index, probing depth and probing attachment level showed no change. In conclusion, 6% hydrogen peroxide gel is an effective and safe agent for daily home tooth bleaching.

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Sulcusectomy and Soft Tissue Augmentation in Sulcus Vocalis (성대구(Sulcus vocalis)에 대한 구절제술(Sulcusectomy)과 연조직 삽입술)

  • Choi, Jong-Wook;Min, Heon-Ki;Choi, Gun;Jung, Kwang-Yoon;Seok, Yoon-Sik
    • Proceedings of the KSLP Conference
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    • 1996.11a
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    • pp.83-83
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    • 1996
  • 성대구는 성대점막 고유층의 일부 결손 또는 위축성 함입으로 유리연이 내함되어 성대궁형(bowing cord)이 형성되기 때문에 발성시 정상점막 파동이 소실되고 성문폐쇄부전을 보이며 그 결과 애성을 초래하게 된다. 이러한 성대의 내함을 교정하기 위하여 구절제술, 성대 상하순(upper and lower lip) 점막의 위치조절 둥이 시행되고 있으나 성대궁형이 교정되지 않아 음성개선에 실패하는 경우가 많다. 저자들은 구절제술 후 성대궁형을 교정할 목적으로 연골막을 포함한 연조직을 성대근 내측으로 삽입하여 음성을 개선하는데 도움을 얻고자 하였다. 이러한 방법으로 음성수술을 시행한 5례의 경험과 그 효과 및 문제점을 문헌고찰과 더불어 보고하고자 한다.

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Two New Records of Genus Campylaspis (Crustacea: Cumacea: Nannastacidae) from the Southern Sea, Korea

  • Kim, Sung-Hyun;Jeong, Eun-Joo;Lee, Chang-Mok;Kim, Young-Hyo
    • Animal Systematics, Evolution and Diversity
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    • v.34 no.1
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    • pp.50-59
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    • 2018
  • Two Campylaspis species, C. amblyoda $Gam\hat{o}$, 1960 and C. reticulata $Gam\hat{o}$, 1960, are redescribed as new to Korean cumacean fauna. Campylaspis amblyoda is characterized by having a carapace with five or six pairs of pellucid spots on dorsal surface, a pair of projections near proximal portion of frontal lobe, and lacking sulcus on lateral portion. Campylaspis reticulata is easily distinguished from its congeners by having a pair of broad sulcus and several large reticulations on lateral portion of carapace. The collected Korean specimens were congruent with the original descriptions, except for several minor differences. Herein, we add two Campylaspis species to the Korean cumacean fauna. The female of C. reticulata is described for the first time. A key to the Korean Campylaspis species is also provided.

Vocal Function After Surgical Correction of the Bowing Vocal Cords (성대 Bowing의 술전.후 음성기능)

  • 정광윤;최종욱;한동수
    • Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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    • v.6 no.1
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    • pp.9-15
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    • 1995
  • Bowing of the vocal cords may be due to aging. atrophy. bilateral superior laryngeal nerve paralysis. injudicious vocal cord surgery, of an idiopathic cause. The bowing usually produces a dysphonia characterized by breathiness due to air escape : however, it can produce aphonia. This report reviews vocal function after surgical correction of bowing of the vocal cords for diagnosis and management. The vocal function of 13 patients with sulcus vocalis and 12 patients with vocal cord atrophy was evaluated with the use of a test battery of multidimensional evaluation items. The voice was improved postoperatively in most patients. The voice improvement was reflected objectively in maximum phonation time, mean air flow rate during phonation, stroboscopic findings. sound pressure level range and fundamental frequency range of phonation, and results of acoustic analyses of tape-recorded voice. The vocal function after surgical correction of the sulcus vocalis and vocal cord atrophy was improved postoperatively in most patient, but the results were not satisfactory.

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