• Title, Summary, Keyword: Lip

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Global Charity Operations of Cleft Lip and Palate by Korean Cleft Lip and Palate Association ; Charity Operations in Kenya, east Africa (대한구순구개열학회의 글로벌 자선 수술 활동 : 케냐에서의 자선 수술 활동)

  • Choung, Pill-Hoon;Park, Joo-Young;Park, Joo-Young;Ahn, Kang-Min;Baek, Jin-Woo;Cho, Il-Hwan;Choi, Cheol-Min;Choi, Seon-Hyu;Chung, Il-Hyuk;Gao, En-Feng;Hong, Jong-Rak;Hyun, Seung-Don;Jang, Hyon-Seok;Jun, Sang-Ho;Jung, Sung-Uk;Kang, Na-Ra;Kang, Young-Ho;Kim, Byung-Ryul;Kim, Dong-Hyun;Kim, Eun-Seok;Kim, Ho-Sung;Kim, In-Soo;Kim, Ji-Hyuck;Kim, Jong-Ryoul;Kim, Joong-Min;Kim, Myung-Jin;Kim, Soung-Min;Ko, Bong-Hwa;Koh, Sung-Hee;Lee, Bu-Kyu;Lee, Eui-Seok;Lee, Jong-Ho;Lee, Ui-Lyong;Lee, Won;Lee, Won-Deok;Min, Byong-Il;Nam, Il-Woo;Paeng, Jun-Young;Park, Jong-Chul;Park, Jung-Seok;Park, Sung-Hee;Park, Young-Wook;Pyo, Sung-Woon;Rim, Chae-Hong;Rim, Jae-Suk;Seo, Byoung-Moo;Suh, Je-Duck;Yoon, Jeong-Ho;Yoon, Jung-Ju;Yun, Hyung-Jin
    • Korean Journal of Cleft Lip And Palate
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    • v.9 no.2
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    • pp.85-92
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    • 2006
  • Korean Cleft Lip and Palate Association (KCLPA) was founded in 1996. The first overseas charity operation was in Karachi, Pakistan, 2002 and our association has visited fourteen times in six countries for the free cleft surgery: Pakistan, Egypt, Kenya, Morocco, Jordan and Vietnam. The cumulated number of operated patients reaches to 280. Before our association, many Korean oral and maxillofacial surgeons have performed charity operations individually since 1964. It was started from Vietnam but the activity is now carried on in Africa, middle-east Asia, south-east Asia, China, and Korea as an official team. LG electronics, a Korean company helped to propagate our team's activity to middle-east Asia to Africa. This paper is a report concerning about the results of our association's charity activities especially in Kenya, east Africa. We provided free cleft surgery for 30 patients in 2004 and 27 patients in 2005, in Nairobi. As the blood test for HIV of the cleft patients was not allowed before and during surgery, our surgeons and nurses were cautious about every movement during the surgeries. Thus the operation time for each patient was longer than any other time. The attitude of the local hospital and the doctors seemed to be accustomed to this situation. They helped us in case of needle injuries. Safety of medical staff and patients is more important than the number of the patients operated in charity operation. This belief should be approached being parallel and multidisciplinary as an international cooperation, focusing on international funding for medical support and continuous education for local doctors who are willing to devote to their people.

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CORRELATIONS BETWEEN ORBICULARIS ORIS AND MENTALIS MUSCLE ACTIVITY AND CRANIOFACIAL MORPHOLOGY IN NORMAL OCCLUSION AND CLASS III MALOCCLUSION (정상교합자와 3급 부정교합자에서 구륜근과 턱끝근의 활성과 안면골격 사이의 상관성에 관한 연구)

  • Chang, Chun Sil;Lee, Ki Soo
    • The korean journal of orthodontics
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    • v.22 no.1
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    • pp.253-271
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    • 1992
  • The purpose of this study was to investigate the difference of EMG activity of the Orbicularis oris and Mentalis muscle between normal occlusion and class III malocclusion group during various lip position and to find out whether any correlations exist between the muscular activity and craniofacial morphology. In this study, 50 subjects with a mean age of 22.9 Years (range 20.0-26.0) were investigated (25 subjects were normal occlusion, and 25 subjects were class III malocclusion). EMG data were recorded from the Orbicularis oris and Mentalis muscle during rest lip posture, lip position at maximum biting, lip position at maximum sealing effort, lip position at chewing, swallowing and phonation with the Medelec MS-25 electromyographic machine. Lateral cephalometric radiographs was taken with the mandible in intercuspal position on all subjects. All data were recorded and statistically processed. The findings of this study can be summerized as follows: 1. In normal occlusion, the maximal mean amplitude of upper lip during the lip position at chewing was lower than that of lower lip and mentalis muscle. But the maximal mean amplitude of orbicularis oris and mentalis muscle during the other lip position was not statistically different. 2. In Class III malocclusion, the maximal mean amplitude of upper lip during the lip position at chewing, swallowing and phonation was lower than that of lower lip and mentalis muscle. But the maximal mean amplitude of orbicularis oris and mentalis muscle during the other lip position was not statistically different. 3. Compare to normal occlusion, the Class III malocclusion was showed low maximal mean amplitude of upper lip during rest lip posture and the lip position at swallowing of saliva, and showed great maximal mean amplitude of lower lip and meantalis muscle during the lip position at chewing and phonation. 4. In normal occlusion, the maximal mean amplitude of upper lip during various lip position was not correlated with the length and thickness of upper lip, but the maximal mean amplitude of lower lip during the lip position at chewing and swallowing was positively correlated with the thickness of lower lip. 5. In Class III malocclusion, the maximal mean amplitude of upper lip during rest lip posture was negatively correlated with the thickness of upper lip, and the maximal mean amplitude of lower lip and mentalis muscle during the lip position at chewing and swallowing was positively correlated with the thickness of lower lip and mentalis muscle. But the maximal mean amplitude of orbicularis oris and mentalis muscle during the other lip position was not correlated with the cephalometric measurements of soft tissue. 6. The correlation between the maximal mean amplitude of orbicularis oris and mentalis muscle and cephalometric measurements of incisors was not nearly present. 7. In normal occlusion, the maximal mean amplitude of lower lip and mentalis muscle during the lip position at maximum biting was negatively correlated with the angle between palatal plane and mandibular plane. In Class III malocclusion, the maximal mean amplitude of upper lip, lower lip and mentalis muscle during function was negatively correlated with the length of maxilla, the maximal mean amplitude of upper lip and lower lip during function was negatively correlated with the SNA and SNPo, and the maximal mean amplitude of lower lip during the lip position at chewing was negatively correlated with the ANB.

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Word-boundary and rate effects on upper and lower lip movements in the articulation of the bilabial stop /p/ in Korean

  • Son, Minjung
    • Phonetics and Speech Sciences
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    • v.10 no.1
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    • pp.23-31
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    • 2018
  • In this study, we examined how the upper and lower lips articulate to produce labial /p/. Using electromagnetic midsagittal articulography, we collected flesh-point tracking movement data from eight native speakers of Seoul Korean (five females and three males). Individual articulatory movements in /p/ were examined in terms of minimum vertical upper lip position, maximum vertical lower lip position, and corresponding vertical upper lip position aligned with maximum vertical lower lip position. Using linear mixed-effect models, we tested two factors (word boundary [across-word vs. within-word] and speech rate [comfortable vs. fast]) and their interaction, considering subjects as random effects. The results are summarized as follows. First, maximum lower lip position varied with different word boundaries and speech rates, but no interaction was detected. In particular, maximum lower lip position was lower (e.g., less constricted or more reduced) in fast rate condition and across-word boundary condition. Second, minimum lower lip position, as well as lower lip position, measured at the time of maximum lower lip position only varied with different word boundaries, showing that they were consistently lower in across-word condition. We provide further empirical evidence of lower lip movement sensitive to both different word boundaries (e.g., linguistic factor) and speech rates (e.g., paralinguistic factor); this supports the traditional idea that the lower lip is an actively moving articulator. The sensitivity of upper lip movement is also observed with different word boundaries; this counters the traditional idea that the upper lip is the target area, which presupposes immobility. Taken together, the lip aperture gesture is a good indicator that takes into account upper and lower lip vertical movements, compared to the traditional approach that distinguishes a movable articulator from target place. Respective of different speech rates, the results of the present study patterned with cross-linguistic lenition-related allophonic variation, which is known to be more sensitive to fast rate.

Extraction of Lip Region using Chromaticity Transformation and Fuzzy Clustering (색도 변환과 퍼지 클러스터링을 이용한 입술영역 추출)

  • Kim, Jeong Yeop
    • Journal of Korea Multimedia Society
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    • v.17 no.7
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    • pp.806-817
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    • 2014
  • The extraction of lip region is essential to Lip Reading, which is a field of image processing to get some meaningful information by the analysis of lip movement from human face image. Many conventional methods to extract lip region are proposed. One is getting the position of lip by using geometric face structure. The other discriminates lip and skin regions by using color information only. The former is more complex than the latter, however it can analyze black and white image also. The latter is very simple compared to the former, however it is very difficult to discriminate lip and skin regions because of close similarity between these two regions. And also, the accuracy is relatively low compared to the former. Conventional analysis of color coordinate systems are mostly based on specific extraction scheme for lip regions rather than coordinate system itself. In this paper, the method for selection of effective color coordinate system and chromaticity transformation to discriminate these two lip and skin region are proposed.

The Effect of Lip Adhesion in Unilateral Complete Cleft Lip (일측성 완전구순열에서 구순접합술의 효과)

  • Ryu Sun-Youl;Kim Tae-Hee;Hwang Ung;Kook Min-Suk;Kim Sun-Kook;Han Chang-Hun
    • Korean Journal of Cleft Lip And Palate
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    • v.7 no.1
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    • pp.1-16
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    • 2004
  • In the recent time, early correction of the congenital anomalies has become the focus of contemporary cleft lip care, The reason of that is mostly psychologic factor of children are respected, Although the propound object of lip adhesion is not esthetic improvement, that able to satisfy sufficiently parents of cleft children, In the unilateral or bilateral clefts, a preliminary lip adhesion has been advocated as a mean of narrowing the cleft at an early phase, of improving the nasal contour, of molding the alveolar arch, and of easing and improving the result of a definitive lip repair. The present study was earned out to investigate the effect of lip adhesion. We performed the Millard's high-half underminded adhesion and Seibert's lip adhesion followed by modified Millard's cheiloplasty for five infants had unilateral complete cleft lip. The lip adhesion reduced the actual deformity by molding the maxillary alveolar segments into better relationship and allows a easy cheiloplasty so that led to more perfect final lip result, Both Millard's high-half underminded adhesion and Seibert's lip adhesion were available methods to adhere a wide cleft lip, Especially, Seibert's lip adhesion had more advantages such as enhancement of the force of adhesion, correction of the deviated columella and acquirement of the esthetic upper lip continuity. These results suggest that the lip adhesion followed by cheiloplasty for wide unilateral complete cleft lip patients provide more favorable final result by molding the maxillary alveolar segments into better relationship.

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The effect of lip thickness on lip profile change after orthodontically treated patients with 4 first bicuspid extraction (Basic upper lip thickness에 따른 교정치료 후 입술 이동량의 차이)

  • Park, Sun-Hyung;Park, Sung-Hun;Cho, Young-Moon;Kim, Jung-Hoon
    • The korean journal of orthodontics
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    • v.32 no.5
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    • pp.355-360
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    • 2002
  • After orthodontic treatment, there are several changes in soft tissue profile. Changes appear at lower anterior facial profile area, especially upper and lower lip. But there are many individual variations in the pattern of changes. So, this study was conducted to find out that the basic upper lip thickness could be one of the factors that could influence the treatment results. The samples were composed of 43 adult patients who had their 4 first premolars extracted. Groups were classified by their basic lip thickness. In group 1(thin upper lip group), there was negative relationship between mentolabial angle and lower lip change. In group 2(average lip thickness group), upper lip change was related to upper incisor change, lower incisor change, lower lip change and nasolabial angle change. And lower lip change was related to upper lip change, upper incisor change, lower incisor change. In group 3(thick upper lip group), there was no relation between both lip change and other variables.

Bilateral cleft lip (양측성 구순열)

  • Kim, Jong-Ryoul
    • Korean Journal of Cleft Lip And Palate
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    • v.10 no.1
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    • pp.39-56
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    • 2007
  • The bilateral cleft lip, a more severe form of clefting than unilateral cleft lip, involves separation of the lip along philtral lines, isolating the central segment (prolabium). Bilateral cleft lip may be either symmetrical or asymmetrical, in which case the cleft lip is split more on one side than on the other. The cleft affects the obvious facial form as an anatomic deformity and has functional consequences, affecting the child's ability to eat, speak, hear, and breathe. Although there would seem to be quite a variance in reported figures, ratios of cleft lip with or without cleft palate have gone as high as 1:500 and as low as 1:1000. It is known that less than 10% of cleft lips are bilateral. Although bilateral cleft lip is less common than unilateral cleft lip, the deformity is more severe, and the reconstructive technique is more complex. Surgery is the only treatment necessary for patients with bilateral cleft lip. Accompanying the evolution of surgical repair is the increasingly important role of orthodontic support with early presurgical alveolar and nasal molding. Repositioning the maxillary and alveolar segments into a more anatomic position allows the surgeon to repair the lip and associated nasal deformity under more optimal conditions. The purpose of this article is to review the related anatomy, presurgical management, and surgical management of bilateral cleft lip.

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Lip Recognition Using Active Shape Model and Shape-Based Weighted Vector (능동적 형태 모델과 가중치 벡터를 이용한 입술 인식)

  • 장경식
    • Journal of Intelligence and Information Systems
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    • v.8 no.1
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    • pp.75-85
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    • 2002
  • In this paper, we propose an efficient method for recognizing lip. Lip is localized by using the shape of lip and the pixel values around lip contour. The shape of lip is represented by a statistically based active shape model which learns typical lip shape from a training set. Because this model is affected by the initial position, we use a boundary between upper and lower lip as initial position for searching lip. The boundary is localized by using a weighted vector based on lip's shape. The experiments have been performed for many images, and show very encouraging result.

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Reconstruction of the Lower Lip Following the Wide Excision of Squamous Cell Carcinoma (하구순 편평상피암의 절제후 재건 치험례)

  • Ryu Bong-Su
    • Korean Journal of Head & Neck Oncology
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    • v.12 no.1
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    • pp.52-57
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    • 1996
  • Since the upper lip does not receive direct actinic radiation, only 5% of lip tumors develop in the upper lip, while the lower lip is the site of the remainder. Among the lower lip cancer, squamous cell carcinoma is the most common tumor, especially the vermillion border of lower lip is the most common site. The aims of reconstruction of the lip are both aesthetic effect and functional restoration and the ideal procedure must produce a aesthetically normal, not-tao-tight lip and a good sensation and muscle tone of the lip. We have a satisfactory reconstruction of a subtotal loss of lower lip after squamous cell carcinoma extirpation using Gillies fan flap and the case is presented with reviewing a many published reports.

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Upper lip tie wrapping into the hard palate and anterior premaxilla causing alveolar hypoplasia

  • Heo, Woong;Ahn, Hee Chang
    • Archives of Craniofacial Surgery
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    • v.19 no.1
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    • pp.48-50
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    • 2018
  • Bony anomaly caused by lip tie is not many reported yet. There was a case of upper lip tie wrapping into the anterior premaxilla. We represent a case of severe upper lip tie of limited lip motion, upper lips curling inside, and alveolar hypoplasia. Male patient was born on June 3, 2016. He had a deep philtral sulcus, low vermilion border and deep cupid's bow of upper lip due to tension of short, stout and very tight frenulum. His upper lip motion was severely restricted in particular lip eversion. There was anterior alveolar hypoplasia with deep sulcus in anterior maxilla. Resection of frenulum cord with Z-plasty was performed at anterior premaxilla and upper lip sulcus. Frenulum was tightly attached to gingiva through gum and into hard palate. Width of frenulum cord was about 1 cm, and length was about 3 cm. He gained upper lip contour including cupid's bow and normal vermilion border after the surgery. This case is severe upper lip tie showing the premaxillary hypoplasia, abnormal lip motion and contour for child. Although there is mild limitation of feeding with upper lip tie child, early detection and treatment are needed to correct bony growth.