• 제목/요약/키워드: Nasal Cavity

검색결과 365건 처리시간 0.025초

Short-term treatment effects produced by rapid maxillary expansion evaluated with computed tomography: A systematic review with meta-analysis

  • Giudice, Antonino Lo;Spinuzza, Paola;Rustico, Lorenzo;Messina, Gabriele;Nucera, Riccardo
    • 대한치과교정학회지
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    • 제50권5호
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    • pp.314-323
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    • 2020
  • Objective: To identify the available evidence on the effects of rapid maxillary expansion (RME) with three-dimensional imaging and provide meta-analytic data from studies assessing the outcomes using computed tomography. Methods: Eleven electronic databases were searched, and prospective case series were selected. Two authors screened all titles and abstracts and assessed full texts of the remaining articles. Seventeen case series were included in the quantitative synthesis. Seven outcomes were investigated: nasal cavity width, maxillary basal bone width, alveolar buccal crest width, alveolar palatal crest width, inter-molar crown width, inter-molar root apex width, and buccopalatal molar inclination. The outcomes were investigated at two-time points: post-expansion (2-6 weeks) and post-retention (4-8 months). Mean differences and 95% confidence intervals were used to summarize and combine the data. Results: All the investigated outcomes showed significant differences post-expansion (maxillary basal bone width, +2.46 mm; nasal cavity width, +1.95 mm; alveolar buccal crest width, +3.90 mm; alveolar palatal crest width, +3.09 mm; intermolar crown width, +5.69 mm; inter-molar root apex width, +2.85 mm; and dental tipping, +3.75°) and post-retention (maxillary basal bone width, +2.21 mm; nasal cavity width, +1.55 mm; alveolar buccal crest width, +3.57 mm; alveolar palatal crest width, +3.32 mm; inter-molar crown width, +5.43 mm; inter-molar root apex width, +4.75 mm; and dental tipping, 2.22°) compared to pre-expansion. Conclusions: After RME, skeletal expansion of the nasomaxillary complex was greater in most caudal structures. Maxillary basal bone showed 10% post-retention relapse. During retention period, uprighting of maxillary molars occurred.

상악골 부분 절제술을 받은 환자에서 구개 폐쇄 장치를 이용한 보철치료: 증례보고 (Prosthetic Treatment with Palatal Obturator for the Patient who had Hemimaxillectomy: Case Report)

  • 최수정;조광헌;이규복
    • 구강회복응용과학지
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    • 제27권3호
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    • pp.337-342
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    • 2011
  • 악안면 부위의 선천적 결손이나 외상성 손실, 종양의 외과적 절제 등에 의한 악골의 결손은 환자에게 저작 장애, 연하 장애 등의 기능적 문제와 발음장애 및 심미적 장애를 초래하게 된다. 이러한 장애를 줄여주고 손상된 조직과 기능을 회복시켜주기 위해 많은 경우 보철적인 수복을 필요로 하게 된다. 상악골에 결손부가 생긴 경우 음식물과 액체가 비강으로 새어나가고 이 결손부로 공기가 누출되어 과비음이 발생한다. 이런 경우에 구개 폐쇄 장치가 사용되는데, 이 장치는 상악의 결손부를 채우고 구강과 상악동 또는 비강과의 개통부를 차단하여 심미성을 증진시키고 기능을 회복시킨다. 본 증례의 환자는 우측 상악동에 편평상피세포 암종이 발생하여 상악골 부분 절제술을 시행한 환자로 구개 폐쇄 장치를 제작하여 장착한 후, 발음과 연하 등의 기본적 기능이 회복되었고 안모의 심미성이 증가하였다.

구개인두성형술 후 음성의 음향학적 변화 (The Acoustic Changes of Voice after Uvulopalatopharyngoplasty)

  • 홍기환;김성완;윤희완;조윤성;문승현;이상헌
    • 음성과학
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    • 제8권2호
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    • pp.23-37
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    • 2001
  • The primary sound produced by the vibration of vocal folds reaches the velopharyngeal isthmus and is directed both nasally and orally. The proportions of the each component is determined by the anatomical and functional status of the soft palate. The oral sounds composed of oral vowels and consonants according to the status of vocal tract, tongue, palate and lips. The nasal sounds composed of nasal consonants and nasal vowels, and further modified according to the status of the nasal airway, so anatomical abnormalities in the nasal cavity will influence nasal sound. The measurement of nasal sounds of speech has relied on the subjective scoring by listeners. The nasal sounds are described with nasality and nasalization. Generally, nasality has been assessed perceptually in the effect of maxillofacial procedures for cleft palate, sleep apnea, snoring and nasal disorders. The nasalization is considered as an acoustic phenomenon. Snoring and sleep apnea is a typical disorders due to abundant velopharynx. The sleep apnea has been known as a cessation of breathing for at least 10 seconds during sleep. Several medical and surgical methods for treating sleep apnea have been attempted. The uvulopalatopharyngoplasty(UPPP) involves removal of 1.0 to 3.0 cm of soft palate tissue with removal of redundant oropharyngeal mucosa and lateral tissue from the anterior and sometimes posterior faucial pillars. This procedure results in a shortened soft palate and a possible risk following this surgery may be velopharyngeal malfunctioning due to the shortened palate. Few researchers have systematically studied the effects of this surgery as it relates to speech production. Some changes in the voice quality such as resonance (nasality), articulation, and phonation have been reported. In view of the conflicting reports discussed, there remains some uncertainty about the speech status in patients following the snoring and sleep apnea surgery. The study was conducted in two phases: 1) acoustic analysis of oral and nasal sounds, and 2) evaluation of nasality.

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Antibiotic use in nasal bone fracture: a single-center retrospective study

  • Jung, Ji Hyuk;Jeon, Yeo Reum;Song, Joon Ho;Chung, Seum
    • 대한두개안면성형외과학회지
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    • 제22권6호
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    • pp.319-323
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    • 2021
  • Background: Prophylactic antibiotics are used to prevent surgical wound infection; however, proper indications must be followed with careful consideration of the risks and benefits, especially in clean or clean-contaminated wounds. Nasal bone fractures are the most common type of facial bone fracture. The most common method for treating nasal bone fracture is closed reduction, which is performed inside the nasal cavity without an incision. The purpose of this study was to determine the need for antibiotic use in the closed reduction of nasal bone fractures. Methods: A retrospective study was conducted using data from the National Insurance Service Ilsan Hospital of the Republic of Korea between 2016 and 2018. The records of patients who underwent closed reduction of nasal bone fracture were reviewed and classified according to sex, age, comorbidities, perioperative antibiotic usage, postoperative complications, nasal packing, anesthesia type, surgeon's specialty, and operation time. Results: Among the 373 patients studied, the antibiotic prescription rate was 67.3%. Just 0.8% of patients were prescribed preoperative antibiotics only, 44.0% were prescribed postoperative antibiotics only, and 22.5% were prescribed both preoperative and postoperative antibiotics. There were no cases that satisfied the definition of "surgical site infection." Furthermore, 2.1% of infection-related complications (e.g., mucosal swelling, synechia, and anosmia) occurred only in the antibiotic usage group. The use of nasal packing, anesthesia type, and surgeon's specialty did not show any difference in infection-related complication rates. Conclusion: According to the study findings, the routine use of perioperative antibiotics is not recommended in uncomplicated nasal bone fracture surgery.

코리안 쇼트헤어 고양이에서 발생한 크립토코쿠스 감염증 의심 1증례 (A Case of Nasal Cryptococcosis in a Domestic Shorthair Cat)

  • 이진수;김현욱;최을수
    • 한국임상수의학회지
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    • 제30권2호
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    • pp.115-118
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    • 2013
  • 8세 중성화 암컷 고양이가 만성 비강 삼출과 호흡곤란으로 내원하였다. 신체검사에서 오른쪽 비강의 출혈농성 삼출이 관찰되었고, 흡기성 호흡곤란과 코골기 증상, 종대된 오른쪽 하악 림프절이 확인되었다. 전혈검사와 혈청화학 검사에서 미약하게 증가한 헤마토크리트 값과 고글로불린혈증이 나타났으며, 혈청학적 및 PCR 기법을 이용한FeLV, FIV, Chlamydophila felis, Feline Calicivirus, Herpesvirus, Bordetella, Mycoplasma felis, H1N1 influenza 검사에서는 모두 음성이었다. 방사선 검사에서는 오른쪽 비강의 연조직 밀도 상승이 관찰되었고, CT촬영에서는 비중격의 위축과 골 용해가 확인되었다. 추가 검사로 실시한 하악 림프절 세포학 검사에서는 다양한 두께의 염색이 안 되는 협막을 갖는 곰팡이가 관찰되었으며, narrow based budding을 보이는 곰팡이도 관찰되어 크립토코쿠스 감염증으로 잠정진단하였다. 혈청학적 검사에서 크립토코쿠스 항원가는 1 : 32,768로 매우 높게 나왔다. 검사결과에 기초해서 곰팡이 감염 치료를 위해 fluconazole, clindamycin, tocopherol투여를 실시했으며 약물 투여 후 3일 이내에 환자의 증상은 극적으로 개선되었다. 장기적인 관찰과 추가 항원역가 검사를 실시하고자 하였으나 환자는 증상 개선 후 퇴원하여 재 내원하지 않았다.

비강(鼻腔)에서 분리(分離)한 황색포도구균(黃色葡萄球菌)의 생화학적(生化學的) 성상(性狀)에 관(關)한 연구(硏究) (Studies on the Pathogenic Staphylococci aureus from Nasal Cavity)

  • 주진우
    • 대한미생물학회지
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    • 제17권1호
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    • pp.67-74
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    • 1982
  • 비병원근무자(非病院勤務者)인 부산대학교(釜山大學校) 자연과학대학(自然科學大學) 생물학계열(生物學系列) 18명(名), 미생물학과(微生物學科) 2학년(學年) 31명(名), 미생물학과(微生物學科) 3학년(學年) 37명(名)과 병원근무자(病院勤務者)인 간호과학생(看護科學生) 30명(名), 간호원(看護員) 30명(名), 수술근무간호원(手術勤務看護員) 30명(名), 의사(醫師) 30명(名), 총(總) 256명(名)을 대상(對象)으로 하여 비강(鼻腔)에서 황색포도구균(黃色葡萄球菌)을 분리(分離)하여 얻은 성적(成績)은 다음과 같다. 1. 비병원근무자(非病院勤務者) 대학생(大學生)에서 황색포도구균분리율(黃色葡萄球菌分離率)은 49예(例)(29.7%), 병원근무자(病院勤務者)에서는 67예(例)(55.8%)이었다. 2. 비병원근무자(非病院勤務者) 대학생(大學生)의 비강(鼻腔)에서 분리(分離)한 황색포도구균(黃色葡萄球菌)의 40예(例)에서 coagulase 양성균주(陽性菌株) 29예(例)(72.5%), 음성균주(陰性菌株) 11예(例)(27.5%)이고, mannitol 분해(分解) 양성균주(陽性菌株) 29예(例)(72.5%), 음성균주(陰性菌株) 11예(例)(27.5%)이었다. 3. 병원근무자(病院勤務者)의 비강(鼻腔)에서 분리(分離)한 황색포도구균(黃色葡萄球菌)의 67예(例)에서 coagulase 양성균주(陽性菌株) 59예(例)(58.1%), 음성균주(陰性菌株) 8예(例)(11.9%)이고, mannitol 분해양성균주(分解陽性菌株) 49예(例)(73.1%), 음성균주(陰性菌株) 18예(例)(26.9%)이었다. 4. 분리균주중(分離菌株中)에서 coagulase양성(陽性) 및 mannitol분해양성(分解陽性) 49균주(菌株)에 대(對)한 용혈반응(溶血反應)의 감수성(感受性)의 순위(順位)는 가토(家兎) 40예(例)(81.6%), 모르못트 25예(例)(53.5%), 면양(緬羊) 13예(例)(26.5%)이고, 닭 및 사람의 적혈구(赤血球)에는 용혈반응음성(溶血反應陰性)이었다. 5. 분리균주중(分離菌株中)에서 coagulase양성(陽性) 및 mannitol분해양성(分解陽性) 49균주(菌株)에 대(對)한 용혈반응(溶血反應)은 전주(全株)에 대(對)해서 각각(各各) 음성(陰性)이었다. 6. 화학요법제(化學療法劑)에 대(對)한 분리균주(分離菌株)에 대(對)한 성적(成績)은 비병원근무자(非病院勤務者) 분리균주(分離菌株)는 대부분(大部分) 감수성(感愛性)이 있으나 병원근무자(病院勤務者) 분리균주(分離菌株)는 대부분(大部分) 저항성(抵抗性)을 나타냄을 관찰(觀察)할 수 있었다.

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선천성 기관 석회화와 조롱박 구멍 협착 (Nasal Pyriform Aperture Stenosis)에 의한 호흡 곤란증 1례 (A Case of Respiratory Difficulty Due to Congenital Tracheal Calcification and Nasal Pyriform Aperture Stenosis)

  • 김규태;김영미;박수은;박재홍;노환중;김학진
    • Clinical and Experimental Pediatrics
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    • 제45권5호
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    • pp.669-672
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    • 2002
  • 저자들은 출생 후 수 시간 뒤에 발생한 호흡 곤란을 주소로 내원한 환아에서 우연히 발견된 기관의 석회화와 양측 조롱박 구멍 협착증을 진단하고 비강 내에 스텐트를 위치시키는 수술로서 호흡 곤란 등의 증상 호전된 환아를 보고하는 바이다.

Nasal airway function after Le Fort I osteotomy with maxillary impaction: A prospective study using the Nasal Obstruction Symptom Evaluation scale

  • Kim, Hyo Seong;Son, Ji Hwan;Chung, Jee Hyeok;Kim, Kyung Sik;Choi, Joon;Yang, Jeong Yeol
    • Archives of Plastic Surgery
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    • 제48권1호
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    • pp.61-68
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    • 2021
  • Background This study evaluated changes in nasal airway function following Le Fort I osteotomy with maxillary impaction according to the Nasal Obstruction Symptom Evaluation (NOSE) scale. Methods This cohort study included 13 patients who underwent Le Fort I osteotomy with maxillary impaction. Nasal airway function was evaluated based on the NOSE scale preoperatively and at 3 months postoperatively. The change in the NOSE score was calculated as the preoperative score minus the postoperative score. If the normality assumptions for changes in the NOSE score were not met, a nonparametric test (the Wilcoxon signed-rank test) was used. Differences in NOSE score changes according to patient characteristics and surgical factors were evaluated using the Kruskal-Wallis test and the Mann-Whitney test. Results Patients ranged in age from 18 to 29 years (mean ±standard deviation [SD], 23.00±3.87 years). Three were men and 10 were women. Eleven patients (84%) had an acquired dentofacial deformity with skeletal class III malocclusion. The preoperative NOSE scores ranged from 40 to 90 (mean±SD, 68.92±16.68), and the postoperative NOSE scores ranged from 25 to 80 (53.84±18.83). The cohort as a whole showed significant improvement in nasal airway function following maxillary impaction (P=0.028). Eleven patients (84%) had either improved (n=8) or unchanged (n=3) postoperative NOSE scores. However, nasal airway function deteriorated in two patients. Patient characteristics and surgical factors were not correlated with preoperative or postoperative NOSE scores. Conclusions Nasal airway function as evaluated using the NOSE scale improved after maxillary impaction.

Nasal and Pulmonary Toxicity of Titanium Dioxide Nanoparticles in Rats

  • Kwon, Soonjin;Yang, Young-Su;Yang, Hyo-Seon;Lee, Jinsoo;Kang, Min-Sung;Lee, Byoung-Seok;Lee, Kyuhong;Song, Chang-Woo
    • Toxicological Research
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    • 제28권4호
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    • pp.217-224
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    • 2012
  • In recent decades, titanium dioxide ($TiO_2$) nanoparticles have been used in various applications, including paints, coatings, and food. However, data are lacking on the toxicological aspects associated with their use. The aim of this study was to assess the inhalation toxicity of $TiO_2$ nanoparticles in rats by using inhalation exposure. Male Wistar rats were exposed to $TiO_2$ nanoparticles for 2 weeks (6 hr/day, 5 days/week) at a mean mass concentration of $11.39{\pm}0.31mg/m^3$. We performed time-course necropsies at 1, 7, and 15 days after exposure. Lung inflammation and injury were assessed on the basis of the total and individual cell counts in bronchoalveolar lavage fluid (BALF), and by biochemical assays, including an assay for lactate dehydrogenase (LDH). Furthermore, histopathological examination was performed to investigate the lungs and nasal cavity of rats. There were no statistically significant changes in the number of BALF cells, results of biochemical assays of BALF and serum, and results of cytokine analysis. However, we did observe histopathological changes in the nasal cavity tissue. Lesions were observed at post-exposure days 1 and 7, which resolved at post-exposure day 15. We also calculated the actual amounts of $TiO_2$ nanoparticles inhaled by the rats. The results showed that the degree of toxicity induced by $TiO_2$ nanoparticles correlated with the delivered quantities. In particular, exposure to small particles with a size of approximately 20 nm resulted in toxicity, even if the total particle number was relatively low.

상순의 발생 -review- (Development of the Upper Lip -review-)

  • 고승오;임양희;김기병;신효근
    • 대한구순구개열학회지
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    • 제10권1호
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    • pp.17-22
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    • 2007
  • The vertebrate upper lip forms from initially freely projecting maxillary, medial nasal, and lateral nasal prominences at the rostral and lateral boundaries of the primitive oral cavity. These facial prominences arise during early embryogenesis from ventrally migrating neural crest cells in combination with the head ectoderm and mesoderm and undergo directed growth and expansion around the nasal pits to actively fuse with each other. Initial fusion is between lateral and medial nasal processes and is followed by fusion between maxillary and medial nasal processes. Fusion between these prominences involves active epithelial filopodial and adhering interactions as well as programmed cell death. Slight defects in growth and patterning of the facial mesenchyme or epithelial fusion result in cleft lip with or without cleft palate, the most common and disfiguring craniofacial birth defect. This review will summarize the current understanding of the basic morphogenetic processes and molecular mechanisms underlying upper lip development.

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