Orthodontic Journal of Nepal最新文献_第3页

Management of Maxillary Buccal and Palatal Impacted Canines – Case Reports 上颌颊腭部感染犬的治疗——病例报告

Orthodontic Journal of Nepal Pub Date : 2022-08-15 DOI: 10.3126/ojn.v12i1.47490

Adeel Ahmed Bajjad, Anil Sharma, Santosh Verma, Sayantan Choudhury

引用次数: 0

Comparison of Pharyngeal Airway Width among Individuals having Skeletal Class I Malocclusion with Different Growth Patterns 不同生长模式骨骼I类错颌畸形患者咽气道宽度的比较

Orthodontic Journal of Nepal Pub Date : 2022-08-15 DOI: 10.3126/ojn.v12i1.47485

P. Poudel, S. Dahal

{"title":"Comparison of Pharyngeal Airway Width among Individuals having Skeletal Class I Malocclusion with Different Growth Patterns","authors":"P. Poudel, S. Dahal","doi":"10.3126/ojn.v12i1.47485","DOIUrl":"https://doi.org/10.3126/ojn.v12i1.47485","url":null,"abstract":"Introduction: An interaction can be seen between respiratory function and the maxillary growth pattern. Therefore, this study was conducted to assess and compare the pharyngeal airway width of individuals with different growth patterns in skeletal class I malocclusion.\u0000Materials and Method: Analytical cross-sectional study was done to assess total of 60 cephalometric radiographs of individuals with skeletal class I malocclusion pattern selected through convenience sampling method. McNamara analysis was done to measure the width of upper and lower pharyngeal space. Statistical analysis was done in SPSS version 20. One way ANOVA and Post Hoc test were done to determine the mean difference of upper and lower pharyngeal airway space width in between individuals of skeletal class I malocclusion with different growth pattern.\u0000Result: There was no significant mean difference in upper pharyngeal airway space (p=0.201) seen in between three growth patterns of individuals with class I malocclusion. However, the study participants with vertical growth pattern showed significantly less lower pharyngeal space width (8.36±2.63mm) than in horizontal growth pattern (10.89±3.46 mm, p=0.028).\u0000Conclusion: The findings of this study conclude that in skeletal class I malocclusion, there is no difference in upper pharyngeal space dimensions among individuals with different growth patterns but the vertical growth pattern shows smaller dimension of lower pharyngeal space than horizontal growth pattern.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43833117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Closing Loops; Geometry and Mechanical Properties: A Review 闭环；几何与力学性能：综述

Orthodontic Journal of Nepal Pub Date : 2022-08-15 DOI: 10.3126/ojn.v12i1.47493

M. Ferreira, Fábio Rodrigo Mandello Rodrigues, M. Luersen, P. Borges

{"title":"Closing Loops; Geometry and Mechanical Properties: A Review","authors":"M. Ferreira, Fábio Rodrigo Mandello Rodrigues, M. Luersen, P. Borges","doi":"10.3126/ojn.v12i1.47493","DOIUrl":"https://doi.org/10.3126/ojn.v12i1.47493","url":null,"abstract":" Introduction: To verify the literature concerning the mechanical properties, measuring methods and the resultant force system developed by closing loops (CL). The effectiveness of a certain CL is related to its geometry and the nature of the wire material. To obtain the necessary performance CL must work in the elastic range and be geometrically configured to express an adequate force system, which is the result of compensatory gable bends and preactivation. It was performed a literature search in MEDLINE from 1974 to 2014 using search for “orthodontic AND retraction AND springs” and “orthodontic AND closing AND loops”. From the 147 papers resulted from Pubmed, 50 were chosen. Overall, many works seek not only improve the knowledge about the force system, but also a better understanding of their mechanical behavior. FEM, Holographic and Photoelastic studies, are tests commonly used before testing them experimentally. Wire material and the cross-section show a great influence in the choice of the geometric variables because the modulus of elasticity (E), modulus of resiliency (R) and the moment of inertia (I). Experimental tests should be preceded by numerical methods because the latter idealize a particular setting, and allows modifying variables.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47387959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Managing A Case of Bilateral Congenitally Missing Maxillary Lateral Incisors by First Premolars Substitution and Ectopically Erupted Permanent Canines - A Case Report 一例第一磨牙前代牙和恒牙外露治疗双侧先天性缺失上颌外侧切口的病例报告

Orthodontic Journal of Nepal Pub Date : 2022-08-15 DOI: 10.3126/ojn.v12i1.47489

Khyati Narula

引用次数: 0

Knowledge and Attitude of General Dentists and Non-Orthodontic Specialists Towards Early Orthodontic Treatment – A Cross-Sectional Analytical Study 普通牙医和非正畸专科医生对早期正畸治疗的知识和态度-一项横断面分析研究

Orthodontic Journal of Nepal Pub Date : 2022-08-15 DOI: 10.3126/ojn.v12i1.47483

S. Deshmukh, Archana Jatania, Anurag Tiwari, Pranjal A. Charde, R. Dalvi

{"title":"Knowledge and Attitude of General Dentists and Non-Orthodontic Specialists Towards Early Orthodontic Treatment – A Cross-Sectional Analytical Study","authors":"S. Deshmukh, Archana Jatania, Anurag Tiwari, Pranjal A. Charde, R. Dalvi","doi":"10.3126/ojn.v12i1.47483","DOIUrl":"https://doi.org/10.3126/ojn.v12i1.47483","url":null,"abstract":"Introduction: Malocclusion is one of the most important oral health problems among children and young adults, leads to social stigma and psychological disorders. Early detection of orthodontic disorders is essential in motivating patients to intervene prior to long-term complications when the disorders are not recognized. The aim of this study is to determine and evaluate the knowledge and attitude of general dentists and non-orthodontic specialists towards early orthodontic treatment.\u0000Materials and Method: A total of 240 dentists and other specialists than orthodontists participated in the study. A questionnaire consisting of 3 domains having 17 items was circulated using Google forms. The responses were collected further coded and analysed to assess the knowledge and attitude scores. Data was entered in SPSS (v.21.0) and statistical analysis was performed. (p<0.05)\u0000Result: A total of 122 general dentists and 122 non-orthodontic specialists responded to the questionnaire. The results showed that the non-orthodontic specialist had a higher mean knowledge score of 7.2 as compared to general dentists (6.1). Furthermore, both the study participants had a positive strong attitude towards improving their knowledge in early orthodontic treatment.\u0000Conclusion: The study highlights the need of better education for treatment concepts in orthodontics to the general dentist and non-orthodontic specialist.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42337864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prospective Comparison of Facial Soft Tissue Changes Using 2D Photographs and 3D Scanning After En Masse Dentoalveolar Maxillary Distalization Using Tads Tads大面积种植义齿上颌窦扩径术后二维照片和三维扫描面部软组织变化的前瞻性比较

Orthodontic Journal of Nepal Pub Date : 2022-08-15 DOI: 10.3126/ojn.v12i1.47486

Nida Fatima, Gurkeerat Singh, N. Gupta, Ritu Gupta, R. Singh, Ankit Chaudhari

{"title":"Prospective Comparison of Facial Soft Tissue Changes Using 2D Photographs and 3D Scanning After En Masse Dentoalveolar Maxillary Distalization Using Tads","authors":"Nida Fatima, Gurkeerat Singh, N. Gupta, Ritu Gupta, R. Singh, Ankit Chaudhari","doi":"10.3126/ojn.v12i1.47486","DOIUrl":"https://doi.org/10.3126/ojn.v12i1.47486","url":null,"abstract":"Introduction: This prospective clinical study was undertaken to analyse the three-dimensional facial soft tissue changes after en-masse maxillary distalization using 3D structured light-based scanner and facial photographs and to compare the two diagnostic aids.\u0000Materials and Method: 12 Indian adult patients of 17- 23 years of age with unilateral or bilateral class II molar relationship and those indicated for en-masse distalization. A pre-operative and post-operative extra oral 3D scan and 2D photographs were obtained for each subject. A prospective comparative evaluation of 10 lateral and 20 frontal soft tissue parameters was done.\u0000Result: When pre to post comparison was made in different study parameters using paired t test, none of the study parameter showed significant difference.\u0000Conclusion: The laser facial scanning can be considered as a useful and reliable tool to analyze the circumoral region for orthodontic and orthognathic surgical diagnosis and treatment planning. The difference in facial soft tissue changes evaluated using 3D scans and 2D photographs was also not statistically significant.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47876756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Applicability of Pulp Tooth Area Ratio in Age Estimation using Mandibular Premolars 牙髓面积比在下颌前磨牙年龄估计中的适用性

Orthodontic Journal of Nepal Pub Date : 2022-08-15 DOI: 10.3126/ojn.v12i1.47482

D. Bajracharya, B. Ojha, S. Koju, N. Maharjan, A. Shah

{"title":"Applicability of Pulp Tooth Area Ratio in Age Estimation using Mandibular Premolars","authors":"D. Bajracharya, B. Ojha, S. Koju, N. Maharjan, A. Shah","doi":"10.3126/ojn.v12i1.47482","DOIUrl":"https://doi.org/10.3126/ojn.v12i1.47482","url":null,"abstract":"Introduction: Age estimation is an important parameter in forensic for identification of individuals. Cameriere developed pulp tooth area ratio as age estimation method in Orthopantomogram. Objective of this study was to use Pulp tooth area ratio of mandibular premolars and derive population-specific equations for age estimation.\u0000Materials and Method: A retrospective study was conducted in Department of Oral and Maxillofacial Pathology, Kantipur Dental College and Teaching Hospital from June 2021 to November 2021 after ethical clearance no 10/021. Total 392, Orthopantomograms of patients aged 17- 50 years with mandibular premolars were retrieved from Department of Oral Medicine and Radiology. The radiographic images were saved as JPEG file and images of premolars were processed using Image J software. Pulp and tooth area were measured and their ratio was calculated.\u0000Result: There were 178 males and 214 females with mean age of 22.39 years. Paired T tests showed good intra observer agreement between mandibular premolars. In our study pulp tooth area ratio ranged from 0.0109 to 0.2307 for 45, 0.0456 to 0.2030 for 44, 0.0413 to 0.2239 for 35 and 0.0639 to 0.2204 for 34. Linear regression analysis generated several formulae for all mandibular premolars which was statistically significant. Derived equations were used to test for accuracy in the 40 new samples which showed mean accuracy error between 5.65 to 6.40 years.\u0000Conclusion: Derived equations from Pulp tooth area ratio of mandibular premolars can be used for age estimation in young adults from Nepalese population sample.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43147366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanotechnology In Temporary Anchorage Devices 纳米技术在临时锚固装置中的应用

Orthodontic Journal of Nepal Pub Date : 2022-08-15 DOI: 10.3126/ojn.v12i1.47492

Chelza X, Anand Sivadasa

引用次数: 0

Assessment of knowledge, attitude and practice of COVID-19 among dental patients visiting Pokhara Academy of Health Sciences, Pokhara 到访博卡拉卫生科学院的牙科患者对COVID-19的知识、态度和行为的评估

Orthodontic Journal of Nepal Pub Date : 2022-08-15 DOI: 10.3126/ojn.v12i1.47487

Purna Prasad Khanal, K. Subedi, Bhawana Sigdel, Sunil Paneru, P. Adhikari

{"title":"Assessment of knowledge, attitude and practice of COVID-19 among dental patients visiting Pokhara Academy of Health Sciences, Pokhara","authors":"Purna Prasad Khanal, K. Subedi, Bhawana Sigdel, Sunil Paneru, P. Adhikari","doi":"10.3126/ojn.v12i1.47487","DOIUrl":"https://doi.org/10.3126/ojn.v12i1.47487","url":null,"abstract":"Introduction: Coronavirus disease 2019 (COVID-19) is a contagious disease caused by severe acute respiratory syndrome coronavirus 2 . The aim of this study was to assess the knowledge, attitude and practice related to COVID-19 among dental patients visiting Pokhara Academy of Health Sciences, Pokhara.\u0000Materials and Method: The cross-sectional study was carried out in the dental patients visiting Pokhara Academy of Health Sciences, Pokhara. Convenient sampling was used. A structured questionnaire was organized into four different sections: section I, section II, section III and section IV which contained socio-demographic information, knowledge, attitude and practice towards universal safety precautions of Covid-19 respectively. Descriptive statistics including mean, standard deviation, median, interquartile range, proportion were calculated along with tabulation presentation. ANOVA and T Tests were used wherever necessary.\u0000Result: The mean age of the participants was 35.53 ± 14.24, ranging from 18 to 73 years. Mean knowledge of Covid-19 of the participants was found to be 7.23±1.88. Almost 73.5% of the participants didn’t go outside during Covid-19 pandemic, 86% of the participants wore surgical mask/N-95 mask while going outside, 90.5% of the participants maintained minimum physical distance of 2 meters between two or more people, and 89% of the participants used sanitizer or washed their hands after touching any surfaces. Almost all the participants (96.5%) advised a person visiting from abroad or high Covid-19 cases area to stay in quarantine for more than 10 days. There was statistically significant relationship of mean knowledge with age, marital status, education, occupation and monthly income (p≤0.05).\u0000Conclusion: Majority of the participants had good level of knowledge on COVID-19, positive attitude towards all preventive measures and good practice related to COVID-19 infection.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46237965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of Nasolabial Angle – A Cephalometric Study in Nepalese Adults with Normal Occlusion and Pleasing Facial Profile Visiting A Tertiary Level Hospital 鼻唇角的评估——尼泊尔正常咬合、面部轮廓良好的成人在三级医院的头测研究

Orthodontic Journal of Nepal Pub Date : 2022-08-15 DOI: 10.3126/ojn.v12i1.47480

Ravi Kumar Mahto, D. Kafle, Diwas Rai, Rabina Sakha, Nikita Rajbhandari

{"title":"Evaluation of Nasolabial Angle – A Cephalometric Study in Nepalese Adults with Normal Occlusion and Pleasing Facial Profile Visiting A Tertiary Level Hospital","authors":"Ravi Kumar Mahto, D. Kafle, Diwas Rai, Rabina Sakha, Nikita Rajbhandari","doi":"10.3126/ojn.v12i1.47480","DOIUrl":"https://doi.org/10.3126/ojn.v12i1.47480","url":null,"abstract":" \u0000Introduction: Evaluation of nasolabial angle and its two associated components i.e. inclination of nose and upper lip is vital in orthodontic diagnosis and treatment planning. The normal value for these angular parameters has been found to vary in studies done previously in different populations.\u0000Aims and Objectives: The present study aimed to obtain normative value for nasolabial angle and its components as well as to study variation of these angular parameters in Nepalese adult male and female subjects with normal occlusion and pleasing facial profile.\u0000Materials and Method: Lateral cephalogram of 46 adult subjects (21 males and 25 females) with Class I occlusion and pleasing profile were selected from the archives of Department of orthodontics, Dhulikhel Hospital. Manual tracing and measurement of nasolabial angle (NLA) and 2 related parameters that affects nasolabial angle i.e., lower border of nose to Frankfort horizontal plane angle (N/FH), upper lip to Frankfort horizontal plane angle (L/FH) were done. Descriptive analysis was carried out and Student’s t-test was used to compare mean differences between the male and female subjects.\u0000Result: The mean values of NLA, N/FH and L/FH were 100.22 ± 10.36, 22.78 ± 7.46 and 79.46 ± 8.29 respectively. The mean value of NLA was 100.48 ± 10.07 in male subjects and 103.68 ± 10.57 in female subjects. Similarly, the mean value of N/FH was 21.90 ± 6.65 for males and 23.52 ± 8.14 for females. Also, the mean value of L/FH was found to be 78.62 ± 7.39 for males and 80.16 ± 9.07 for females.\u0000Conclusion: Normative value of nasolabial angle and its two associated parameters was established. Also, sexual dimorphism was observed with mean values of all the 3 parameters higher in female subjects as compared to male subjects.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46914202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0