Orthodontic Journal of Nepal最新文献

{"title":"A Study of Bolton’s Analysis on Permanent Dentition of Nepalese Citizen of Lumbini Province","authors":"Rockey Shrivastava, Hemant Kumar Halwai, Sumit Kumar Yadav, Kishor Dutta, Sandeep Kumar Gupta, Raju Shrestha, Madhurendra Prasad Shah","doi":"10.3126/ojn.v13i1.53630","DOIUrl":"https://doi.org/10.3126/ojn.v13i1.53630","url":null,"abstract":"Introduction: To achieve a good occlusion with satisfactory intercuspation of teeth and a correct overjet and overbite, the maxillary and mandibular teeth must be proportional in size. This cross-sectional study was conducted to assess the Bolton’s tooth size discrepancy in a sample of the Nepalese population of Lumbini Province. Materials and Method: One hundred twenty-fie study casts (50 males and 75 females) were made after making impression of individuals with normal occlusion. Impression was made using alginate impression material, studycasts were made using dental stone type III, and bases were made using dental plaster type II. Individual mesiodistal width of the teeth were measured using a digital vernier caliper to the nearest 0.01mm for the calculation of Bolton’s anterior and overall ratio. The ratios were then compared between male and female. Result: One hundred twenty-five study casts (50 males and 75 females) were made after making impression of individuals with normal occlusion. Impression was made using alginate impression material, study casts were made using dental stone type III, and bases were made using dental plaster type II. A statistically signifiant difference between the summed mesiodistal widths were found between males and females using Independent sample t-test. There was no sexual dimorphism concerning Bolton’s ratio in samples. The overall ratio and anterior ratio were 91.70 ± 1.28 and 77.09 ± 1.57 for males and 91.79 ± 1.34 and 77.29 ± 1.71 for females respectively. The combined overall ratio was 91.75 ± 1.32 and anterior ratio which was 77.21 ± 1.65. Individual mesiodistal width of the teeth were measured using a digital vernier caliper to the nearest 0.01mm for the calculation of Bolton’s anterior and overall ratio. The ratios were then compared between male and female. Conclusion: The sum of mesiodistal dimensions of teeth were greater in males, however, no sexual dimorphism was found in the Bolton ratio. Further, statistically signifiant difference was found in the overall ratio from Nepalese population when compared to the original ratio by Bolton.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":"49 S246","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135342698","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}

{"title":"The prevalence of malocclusions in patients seeking orthodontic treatment at COMS from Chitwan District of Nepal","authors":"Kanistika Jha, Manoj Adhikari","doi":"10.3126/ojn.v13i1.53331","DOIUrl":"https://doi.org/10.3126/ojn.v13i1.53331","url":null,"abstract":"Background: Malocclusion is the abnormal relation between maxillary and mandibular teeth which leads to various problems like esthetics, phonation, mastication, psychological and social problems. The prevalence of malocclusion is highly variable and its range is very wide and heterogeneous. Aims and Objectives: To assess the prevalence of various malocclusion traits and to evaluate the orthodontic treatment need based on the Dental Health Component (DHC) of the Index of Orthodontic Treatment Need (IOTN) among the patients visiting the College of Medical Sciences (COMS), Bharatpur, Chitwan. Materials and Method: A total of 530 patients visiting dental OPD, College of Medical Sciences, Bharatpur, Chitwan were included in this study among which 288 were male and 242 were female patients. Out of the total 530 subjects, malocclusion was observed in 359 individuals. Therefore, all subsequent results and fidings reported in the study are based on these 359 subjects exclusively. Intraoral examination was carried out to assess malocclusion based on Angle’s classifiation, overjet, overbite, open bite, crowding, spacing, and crossbite. The statistical test employed in the study was the Chi-Square test, which was utilized to assess the presence of a signifiant difference. Result: The present study showed that Class I (55.2%), malocclusion was most prevalent followed by Class II (40.9%) and then Class III (3.9%). Increased overjet (41.2%), deep overbite (40.7%), anterior crowding (70.8%), midline spacing (17.5%), and anterior crossbite (16.4%) were more prevalent occlusal traits. DHC (Dental Health Component) of IOTN (Index of Orthodontic Treatment Needs) showed more in grades 1 and 2 (61.88%) followed by grades 4 and 5 (26.03%). Conclusion: Class I crowding was the most prevalent malocclusion in adolescents in Bharatpur, Chitwan. The majority of patients fall in grade 1 and 2 categories followed by grades 4 and 5 of DHC of IOTN grading.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":"1 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135390569","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}

{"title":"Evidence-Based Orthodontics","authors":"Nitesh Tiwari","doi":"10.3126/ojn.v13i1.59128","DOIUrl":"https://doi.org/10.3126/ojn.v13i1.59128","url":null,"abstract":"Dr. Raymond Sugiyama and Dr. Mauricio Gonzalez Balut have conducted extensive research into the rationale for a bracket prescription that is different from standard prescriptions, which are derived from measurements of Caucasians. Evidence-based data shows statistically significant differences in the dental anatomy and cephalometric measurements when comparing Caucasians to other ethnic patients. For example, studies show that the intercisal angle of Asian, Black, and Latin-Hispanic patients range from 10 to 16.6 degrees less when compared to Caucasians . This is the result of the increased proclination of the upper and lower incisors relative to basal bones in these groups. This fact suggests the need for more torque in the anterior teeth for this group of patients.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":"10 18","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135390254","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}

{"title":"Effects of thalassaemia major on components of the craniofacial complex- a cephalometric study in Andhra Pradesh population","authors":"Butool Zohra, Muhammed Faseehuddin, Mohammed Nashiruddin, Syed Moinuddin Quadri, Vishal Parikh, Soja Sara George","doi":"10.3126/ojn.v13i1.52672","DOIUrl":"https://doi.org/10.3126/ojn.v13i1.52672","url":null,"abstract":"Introduction: The cephalometric study was conducted to evaluate the craniofacial effects of thalassaemia major on the Andhra Pradesh population. Methods: A total of 32 thalassaemic patients (23 male, 9 female) were selected from the Thalassaemia and Sickle Cell Society and 32 controls (19 male, 13 female) from schools of Hyderabad city to eliminate any bias on the ethnic background. All 64 lateral cephalograms were taken under standard conditions with teeth in occlusion and lips in a relaxed position. Forty - two linear and angular cephalometric parameters defining craniofacial morphology (22 skeletal, 13 dentoalveolarand 7 softtissue) were selected. Results: Everypatient with thalassaemia exhibited a skeletal base relationship of class II, accompanied by an average ANB angle of 4°. There was a significant increase in the length of the anterior cranial base. The length of the maxillary and mandibular base was significantly reduced, and the mandible appeared to be retruded in the face. Pronounced vertical growth was evident from linear and angular measurements. The dental deviations seen in thalassaemic patients were proclination, significant over-eruption of the maxillary anterior teeth and increased overjet. A marked increase in the convexity of the lower face, prominent upper lip, reduced nasolabial angle and increased inter-labial angle were evident from soft tissue measurements. Conclusions: The reduced length of the maxillary and mandibular base could be due to chronic anaemia which causes retardation of growth in thalassaemic patients. An increase in the anterior cranial base length resulted in the posterior positioning of the mandible and an increase in anterior facial height led to a skeletal class II pattern.Keywords: Anaemia; craniofacial growth; cephalometry; thalassaemia major.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":"50 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135342694","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}

{"title":"A Correlative Study to Assess the Relationship among Ameloglyphics, Cheiloscopy, Rugoscopy in Skeletal and Dental Malocclusions","authors":"Tanmayi Akkina, Swaroopa Ponnada, Chandrasekhar Gandikota, Akshara Gandikota","doi":"10.3126/ojn.v13i1.52144","DOIUrl":"https://doi.org/10.3126/ojn.v13i1.52144","url":null,"abstract":"Introduction: Benefits of preventive and interceptive orthodontic procedures can be availed by early prediction of malocclusion. Early diagnosis is achievable when parameters having similar embryological origin and development period, similar to that of the craniofacial structures are identified and studied. Few such parameters are the enamel rod end patterns, lip prints, and palatal rugae patterns. The intent of this study was to assess the correlation between ameloglyphics, cheiloscopy, rugoscopy and skeletal and dental malocclusions. Materials and Method: A cross-sectional study with one hundred subjects were classified into 3 groups based on cephalometric analysis into skeletal class I, class II and class III malocclusion and were further divided into 4 dental malocclusion groups namely class I, class II division 1, class II division 2 and class III based on the Angle's classification of malocclusion. Ameloglyphics patterns, lip prints and palatal rugae patterns were recorded for each subject and statistically analyzed with chi-square test and Spearman correlation test. Result: Class I malocclusion subjects revealed a predominant curve palatal rugae pattern, type II lip print pattern and wavybranched ameloglyphics patterns were observed with statistically significant association. In class II malocclusion, the predominant palatal rugae pattern observed was straight pattern, type I lip print pattern and linear branched ameloglyphics patterns were statistically significant. Subjects in class III malocclusion group were associated significantly with the annular pattern of palatal rugae, type I lip print pattern, and stem pattern of ameloglyphics. Conclusion: A curve rugae pattern in class I malocclusion, a straight pattern in class II malocclusion, and an annular pattern in class III malocclusion were observed. For the Lip Prints, a highly statistically significant association was observed between class I malocclusion and type II lip print pattern. Ameloglyphics, revealed a statistically significant association between wavy branched pattern and class I malocclusion, linear branched pattern and class II malocclusion and stem pattern with class III malocclusion.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135390734","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}

{"title":"Correction of Skeletal Class II Malocclusion in a Growing Child Using Standard Twin Block: A Case Report","authors":"Abhishek Kumar, Parul Priya, Shresthaa Singh, Abhay Kumar Jain, Raghu Ranjan Prasad","doi":"10.3126/ojn.v13i1.52101","DOIUrl":"https://doi.org/10.3126/ojn.v13i1.52101","url":null,"abstract":"Mandibular defiiency in a Class II malocclusion is a frequently encountered condition that can be managed with myofunctional appliance in a growing child. An 11-year-old patient presented with a complaint of forwardly placed upper front teeth. The patient had a convex facial profie, acute naso-labial angle, deep mento-labial sulcus with lip trap. Clinically the patient showed positive VTO. The clinical fidings and cephalometric analysis indicated skeletal Class II jaw bases owing to prognathic maxilla and retrognathic mandible with Angle’s Class II division 1 malocclusion. CVMIshowed that the patient was in his growth phase. The treatment was done with a standard twin block appliance for 9 months followed by fied orthodontic treatment. The post functional phase showed correction of skeletal class II jaw base and marked improvement in the facial profie from convex to straight. It was later followed by fixed orthodontic treatment in the second phase upon completion of which bonded lingual retainer and wrap around retainers were given in the upper and lower arch. The total duration of the treatment was 23 months.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":"4 14","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135390590","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}

{"title":"Comparison of Structural Topography, Elemental Composition and Qualitative Analysis of two Indian mini-implants: A cross-sectional study","authors":"Palash Bhawsar, Amitabh Kallury, C. Jayade, R. Balani, C. Bharti","doi":"10.3126/ojn.v12i2.42906","DOIUrl":"https://doi.org/10.3126/ojn.v12i2.42906","url":null,"abstract":"Objectives: This research was conducted to evaluate the surface topography, elemental composition and manufacturing defects of two brands of mini-implants commonly used in India. Clinical significance was derived based on the data of this research.\u0000Materials and methods: This research was conducted on 15 orthodontic mini-implants each from two brands commonly used in India. Scanning electron microscope imaging of the head, transmucosal neck, body, and tip was done to assess mini-implant topography and manufacturing defects (n=15/group). Analysis of elemental composition was done using an X-ray Powder Diffractor (n=1/group).\u0000Results: The results showed significant differences in both groups. Differences in structural topography of the implant body and tip were observed in both brands. Tip defects were detected in one brand. X-ray Powder Diffraction analyses revealed an alpha and alpha-beta titanium grain structure in both the groups.\u0000Conclusions: All the mini-implants tested were composed of titanium alloy. Significant differences were found in the surface area of the threaded parts. We conclude that differences in surface topography and presence of manufacturing defects impact the primary stability of the implants thereby influencing the efficacy of orthodontic anchorage.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48408194","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}

{"title":"Orthodontic management of missing maxillary lateral incisors: A case report","authors":"N. Chaudhary, J. Giri, R. Gyawali, Prabhat Pokharel, Gyanendra Chaudhary","doi":"10.3126/ojn.v12i2.44259","DOIUrl":"https://doi.org/10.3126/ojn.v12i2.44259","url":null,"abstract":"The agenesis of maxillary lateral incisors affects the Quality of Life and self-esteem of patients. The management of such patients can be done by either opening the space and replacing it with the prosthesis or closing the space and substituting the canine as a lateral incisor. The choice of treatment decision depends upon the proper diagnosis and treatment planning of the case. In this case report, a skeletal class II patient with dental diagnosis Angle’s class II malocclusion and spacing in the maxillary arch due to missing lateral incisors is presented with the chief complaint of gap in the upper front region of jaw which is effectively treated with orthodontic space closure followed by a restorative procedure.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41557716","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}

{"title":"Comparison of Buccal Corridor Width in Post Treatment Patients Treated with Non Extraction Vs Extraction Therapy in Mithilanchal Population","authors":"Darshana Sarkar, P. Mishra, S Kumar","doi":"10.3126/ojn.v12i2.51360","DOIUrl":"https://doi.org/10.3126/ojn.v12i2.51360","url":null,"abstract":"Introduction: A wide variety of opinion exists on the effect of extraction on the buccal corridor width which has a direct impact on smile esthetics. Till date no study regarding this has been done in Mithilanchal population.\u0000Aims and objectives: To compare the post-treatment buccal corridor width and posterior corridor width of patients treated with or without four first premolars extraction in Mithilanchal population.\u0000Materials and Methods: This was a cross-sectional study conducted at department of orthodontics and dentofacial orthopedics in Mithila Minority Dental College and Hospital, Darbhanga, Bihar. Post treatment posed smile photographs of 24 extraction patients and 24 non-extraction patients were compared using standardization and cropping in adobe Photoshop version 7.0. Statistical analysis was done with SPSS software (IBM Corp 2013; Version 22.0; Armonk, NY) and independent t-test to compare buccal corridor width and posterior corridor width between two groups.\u0000Results: The age group of subjects varied from 1 3 to 26 years. The mean age of group 1 (extraction) and group 2 (non-extraction) patients were 1 7.75 ± 4.48 years and 20.21 ± 4.03 years respectively. The mean width of buccal corridor in extraction patients were 35.33 ± 1 .52 % and for non-extraction group was found to be 35.38 ± 1 .54 %. (non-significant,p = 0.903). The posterior corridor mean width was 20.46 % in group 1 patients and 19.83% in group 2 patients (non-significant, p = 0.274).\u0000Conclusion: No significant difference in the buccal corridor and posterior corridor widths was found after orthodontic treatment with and without extraction of the first four premolars.","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42906976","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}

{"title":"Digital orthodontics: where are we heading?","authors":"M. Bajracharya","doi":"10.3126/ojn.v12i2.53881","DOIUrl":"https://doi.org/10.3126/ojn.v12i2.53881","url":null,"abstract":"","PeriodicalId":31197,"journal":{"name":"Orthodontic Journal of Nepal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47379029","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}