• Title/Summary/Keyword: pal

Search Result 1,097, Processing Time 0.03 seconds

A STUDY ON THE SKELETAL CHANGES IN MAXILLARY PROTRACTION OF THE SKELETAL GLASS III MALOCCLUSION PATIENTS (골격성 III급 부정교합 환자에서 상악골 전방 견인시 일어나는 골격 변화 양상에 관한 연구)

  • Lee, Young-Ji;Cha, Kyung-Suk;Lee, Jin-Woo
    • The korean journal of orthodontics
    • /
    • v.28 no.4 s.69
    • /
    • pp.533-546
    • /
    • 1998

  • A Skeletal Class III malocclusion may be the result of a large mandible, a small maxilla or combination of the two. Protraction devices for the maxilla are used to promote the growth of a deficient maxilla by applying extraoral force to actively growing patients. This study has been performed to determine whether there are significant differences in skeletal and dental changes between FH/Pal 1 and FH/Pal 2 group, SNA 1 and SNA 2 group, SNB 1 and SNB 2 group, and LFH 1 and LFH 2 group after RME and facial mask therapy. The results of this study can be summarized and concluded as follows ; 1. In all patients after maxillary protraction, the maxilla and maxillary dentitions moved forward, and the mandible rotated backward and downward. In most of them, palatal plane is tends to have an upward inclination. 2. The FH/Pal group 1, having an upward inclination of the palatal plane as a result of Facial mast showed statistically significant maxillary forward movement compared to the FH/Pal group 2. 3. The SNA group 1 showed significantly less mandibular backward movement and there was a tendency for the palatal plane to upward inclination compared to SNA group 2. 4. The SNB group 1 showed significantly less maxillary forward movement, but the vertical dimension, especially the lower facial height increased by mandibular downward rotation compared to SNB group 2. 5. LFH group 1, which had large saddle angle and posterior positioned mandible in the pre-treatment stage, showed maxillary protraction effect without significant increase in lower facial height compared to LFH group 2.

  • PDF

A study of morphology of mandibular symphysis and location of lower incisor under the influence of the craniofacial skeleton in skeletal Class III malocclusion (골격성 III급 부정교합자의 두개안면형태에 대한 하악이부의 형태 및 하악절치의 위치에 대한 연구)

  • Kim, Seong-Sik;Park, Je-Uk;Son, Woo-Sung
    • The korean journal of orthodontics
    • /
    • v.28 no.5 s.70
    • /
    • pp.763-774
    • /
    • 1998

  • The purpose of this study was to evaluate the morphology of mandibular symphysis and location of lower incisor under the influence of the craniofacial skeleton in skeletal Class III malocclusion. The sample consisted of 132 adults who have severe Class III malocclusion(prognathism group, 33 males and 33 females), and who have normal occlusion(normal group, 33 males and 33 females). They had not received any orthodontic treatment or orthognathic surgery. The lateral cephalograms were evaluated. The results were as follows : 1. Prognathism group were larger than normal group in comparison of facial skeleton (p<0.05) with the exception of ${\angle}FH-Pal$, ${\angle}SNA$. 2. In the morphology of symphysis, measurements of anteroposterior width(LaABBW, LiABBW, SW) of prognathism group were significantly less than that of normal group(p<0.001). 3. In the correlative analysis between the craniofacial skeleton and symphysis measurements of prognathism group, vertical measurements in relation with cranial base and mandibular plane showed reverse correlationship with anteroposterior width of symphysis(LiACBW, LaACBW, LiABBW, SW)(p<0.05). But, there was not distinct difference between horizontal skeletal measurements and symphysis measurements(p>0.05). 4. The probability by regression test between vertical measurements(${\angle}SN-Mn,\;{\angle}FMA,\;{\angle}Pal-Mn,\;{\angle}LFH$) and symphysis measurements(LiACBW, LiABBW, SW, ${\angle}LISA$) were very high(p<0.001).

  • PDF

Forest Vegetation of Mt. Pal-Gong (팔공산(八公山) 삼림식생(森林植生))

  • Hong, Sung Cheon;Cho, Hyun Je;Yun, Yong Whal;Kim, Je Hak
    • Journal of Korean Society of Forest Science
    • /
    • v.70 no.1
    • /
    • pp.17-27
    • /
    • 1985

  • Through the study of the physiognomical vegetation, the vertical distribution, the distribution of forest community and the flora of the woody plants on the south facing slope of Mt. Pal-Gong, the results obtained were summarized as follows. The forest of Pinus densiflora was dominant in the region of below 750m above the sea level, the mixed forest of conifer and broad-leaved trees in the region of 750m to 950m and the pure forest of deciduous broad-leaved trees in the region of above 950m. Pinus densiflora and Quercus mongolica were dominant for the upper-story trees, Acer pseudo-sieboldianum and Carpinus laxiflora for the mid-story trees, Lespedeza maximowiczii, Sasa purpurascens, Rhododendron mucronulatum and Rhododendron schlippenbachii for the under-story trees. Among seventeen forest communities, Cephalotaxus koreana, Populus davidiana and Alnus hirsuta var. sibirica were considered remarkable communities on the south facing slope of Mt. Pal-Gong. The woody plants growing on Mt. Pal-Gong are composed of 59 families, 7 subfamilies, 122 genera, 178 species, 29 varieties and 10 formae. Populus davidiana, Alnus hirsuta var. sibirica and Rubus phoenicolasius were collected newly in this study.

  • PDF

Study on the Shapes of Jung-kwa, Gi-kwa, Sin-kwa, Hyul-kwa (정기신혈과(精氣神血科)의 형상(形象)에 대한 연구)

  • Choi Byung-Tae;Choi Yung-Hyun;Baek Geun-Gi;Lee Yong-Tae
    • Journal of Physiology & Pathology in Korean Medicine
    • /
    • v.19 no.5
    • /
    • pp.1181-1190
    • /
    • 2005

  • After study about the shapes of Jung, Gi, Sin, Hyul-kwa advocated by Master Jisan, the conclusions are drawn as follows. It pursues the rules of universe being changed from formless to concrete objects that the Body Essence, Vital energy, Mentality, and Blood are materialized to Jung, GE, Sin, Hyul-kwa. It can be drawn an inference from the next three theories that Jisan considered Jung, Gi, Sin, Hyul-kwa as round, square, reverse triangle, and triangle or oval shape. First, it was taken to following the shapes of viscera. Namely Jung-kwa was taken as Kidney, Gi-kwa as Lung, Sin-kwa as Heart, Hyul-kwa as Liver. Second, it was adopted from five kinds of constitutions according to the five elements in [Yeongchu Yin and Yang twenty five shapes] that is Jung-kwa is purchased with Water-earth phases, Gi-kwa with metal phase Sin-kwa with fire phase, Hyul-kwa with Wood phase, Third, it is taken in order to eliminate contradictions. Hyul-kwa disliking to move is assumed to round shape to easily move. Gi-kwa tending to disperse is chosen to square in order to be unmoved. Sin-kwa declining to stagnate of seven emotions is pursued to reverse triangle to compose oneself. Hyul-kwa inclining to gather is preferred to acreage phase to harmonize ascending tendency. Among shapes which Jisan was divided Hado, Nakseo, Bokhee pal kwoe, Moonwang pal kwoe, Jung-kwa as round is Hado, Gi-kwa as square is Nakseo, Sin-kwa as reverse triangle is Bokhee pal kwoe order shape, Hyul-kwa as acreage phase or oval shape is accord with Moonwang pal kwoe order shape. The reason being classified into Jung, GE, Sin, Hyul-kwa from the shapes of the face is that the face is the place to reflect the whole conditions of the body connected with all of the viscera and meridian system such as semen of plants. Above contents are drawn an inference from the transcription of Jisan's lectures and his writings. And it is considered that insufficient parts of the Jisan's theory must be demonstrated continuously.

  • PDF KSCI

Optimal Management Scheme for Phosphorus Discharged from Public Sewage Treatment Plant Located in Upstream Basin of Paldang Lake (팔당호 상류수계에 위치한 공공 하수종말처리시설의 총인 배출 최적관리)

  • Woo, Younggug;Park, Eunyoung;Jeon, Yangkun;Jeong, Myungsuk;Rim, Jaymyung
    • Journal of Korean Society on Water Environment
    • /
    • v.27 no.2
    • /
    • pp.200-209
    • /
    • 2011

  • The purpose of the study is to optimally manage sewage treatment plant with analysis of phosphorus contribution and improvement of water quality contributing rate in the effect of inflowing point of effluent and Pal-Dang lake after reducing T-P discharge from large scale public sewage treatment plant at upstream of Pal-Dang lake. Also, this study, for enforcement of T-P in effluent, plans optimal management of effluent T-P through examining propriety of environmental, technological, and economical aspect such as water quality standard of domestic and foreign T-P and related policy. In regarding optimal management of T-P discharged from public sewage treatment plant located in upstream of Pal-Dang lake, the study drew following conclusions. With the optimal management of public sewage treatment plant, it showed that a pollution level became higher in the order of Sumgang E in South-Han river, C in Dalcheon, B1 B2, A in North-Han river, and J in Kyungancheon, and it is required reduction of T-P first. The highest value in analysis of benefit-costs from sewage treatment plant in the selected research area was Kyungan B, and the others are with the order of Jojong A, Bokha A, Kyungan A, and Yanghwa A. With result of this study, all 14 areas are required more enforced phosphorus treatment. The study resulted that the most top priority areas were Hangang F, Sumgang B, and Gyungan A, top priority areas were Bokha A, Dalcheon B, and Cheongmi A, priority areas were Hangang E, Heukcheon A, Gyungan B, and Jojong A, and potential areas were Sumgang A, Yanghwa A, Dalcheon A, and Hangang D. It seems to be appropriate to apply 0.2 mg/L of T-P treatment for water supply source reservation, 0.5 mg/L for the other areas by locally, and 0.2~0.5 mg/L for biological nitrogen phosphorus treatment method and 0.5~1 mg/L for Conventional Activated Sludge by technologically. Also, it may be appropriate to apply 0.2 mg/L for the most top priority area(I), 0.3 mg/L for the top priority area(II), 0.4 mg/L for priority area(III), and 0.5 mg/L for potential area(IV) by the separation of priority area.

  • https://doi.org/10.15681/KSWE.2011.27.2.8 인용 PDF KSCI