IP Indian Journal of Orthodontics and Dentofacial Research最新文献_第9页

Evaluation of enamel colour changes with orthodontic bonding an in vitro study 正畸粘接对牙釉质颜色变化的评价及体外研究

IP Indian Journal of Orthodontics and Dentofacial Research Pub Date : 2022-03-15 DOI: 10.18231/j.ijodr.2022.005

Thukaram Kethavath, B. Surender, Shailaja, Jayaprakash Tr, S. Kumar, Sujatha Gopal. S

{"title":"Evaluation of enamel colour changes with orthodontic bonding an in vitro study","authors":"Thukaram Kethavath, B. Surender, Shailaja, Jayaprakash Tr, S. Kumar, Sujatha Gopal. S","doi":"10.18231/j.ijodr.2022.005","DOIUrl":"https://doi.org/10.18231/j.ijodr.2022.005","url":null,"abstract":"Aesthetics is an integral part of orthodontics, and color is an important aspect of aesthetics. Hue, value, and chroma are the three objective variables used to describe color. The tooth color exhibits a large variation influenced by the structure of enamel and dentin. Enamel colour alterations may derive from the irreversible penetration of resin tags into the enamel structure at depths reaching 50 µm. Natural Teeth: A total of 80 extracted premolar teeth were collected and then washed thoroughly with plain water and stored in normal saline to prevent them from drying up.Eighty human premolar teeth that had been previously extracted from orthodontic patients.All the teeth selected were cleansed by using a rubber cup and pumice slurry for 20 seconds on a slow speed contra angle hand piece (10,000 rpm), rinsed thoroughly with saline for 10 seconds and air-dried with gentle jets of oil-free compressed air.In this study shows the frequency distributions of color difference ΔE at various time points in Transbond XT group. The mean difference before treatment and debonding and finishing (ΔE1) was 0.91± 0.43, mean difference before treatment and photogeing (ΔE2) was 1.49±0.85 and mean difference after debonding and finishing and photoageing (ΔE3) was 0.81±0.51. The frequency distributions of ΔE at various time points in Ormco group. The mean difference before treatment and debonding and finishing (ΔE1) was 0.72±0.24, mean difference before treatment and photogeing (ΔE2) was 1.88±0.83 and mean difference after debonding and finishing and photoageing (ΔE3) was 0.97±0.55. Ormco Enlight showed highest enamel color change of ΔE2 value 2.92 after debonding & finishing. Rely A bond showed least enamel color change of ΔE2 value 2.80. Of all the groups studied there is a significant color change in the enamel but less than the minimum threshold value of ΔE 3.7 units.","PeriodicalId":269485,"journal":{"name":"IP Indian Journal of Orthodontics and Dentofacial Research","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116106744","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

ASP lingual jig ASP语言夹具

IP Indian Journal of Orthodontics and Dentofacial Research Pub Date : 2022-03-15 DOI: 10.18231/j.ijodr.2022.006

Pavankumar R Singh, A. Ambekar, Suresh K. Kangane

引用次数: 0

The tongue thrust -open bite analogy: A case series 舌头的推力-打开咬类比:一个案例系列

IP Indian Journal of Orthodontics and Dentofacial Research Pub Date : 2022-03-15 DOI: 10.18231/j.ijodr.2022.012

Taher Manasawala, Sushmita Batni, Devashree Mujumdar

引用次数: 0

Cephalometric superimposition in orthodontics-A review 正畸学中头部测量叠加-综述

IP Indian Journal of Orthodontics and Dentofacial Research Pub Date : 2022-03-15 DOI: 10.18231/j.ijodr.2022.001

Nidhi Agrawal, Surbhi Gupta, Soumya Gupta, Sbahana Naxmeen, Deepkesh Bhuyan, G. Singh

引用次数: 0

Orthosurgical management of an adult patient with severe Class-II malocclusion: A case report 成人严重ii类错牙合的矫形外科治疗1例

IP Indian Journal of Orthodontics and Dentofacial Research Pub Date : 2022-03-15 DOI: 10.18231/j.ijodr.2022.010

A. Kamboj, S. Chopra, N. Sinha, Pritam Mohanty, C. Misra, Atul Bali

{"title":"Orthosurgical management of an adult patient with severe Class-II malocclusion: A case report","authors":"A. Kamboj, S. Chopra, N. Sinha, Pritam Mohanty, C. Misra, Atul Bali","doi":"10.18231/j.ijodr.2022.010","DOIUrl":"https://doi.org/10.18231/j.ijodr.2022.010","url":null,"abstract":"Class II malocclusion cases are of interest to orthodontist since they constitute a significant percentage of cases they treat. However, they are one of the most challenging malocclusions to diagnose and treat.There lies a significant difference in prevalence of Class II malocclusion among various populations. Prevalence of Class II malocclusion in India varies from 1.9% in Rajasthan to 8.37% in South India.Class II malocclusions have dental or skeletal or combination entities. Success in the management of skeletal Class II cases especially in the adult cases relies on proper diagnosis and treatment planning. The treatment of severe dentofacial deformities in adult patients is a challenging task for both the orthodontist and the maxillofacial surgeon. In adults with severe discrepancy, combined orthosurgical approach is the ideal way to achieve acceptable results. This case report presents an adult male patient with severe Class II malocclusion in which mandibular advancement was carried out with BSSO. Post-treatment results showed improved facial esthetics and Class- I relationship of the skeletal jaw bases with optimal dental occlusion.","PeriodicalId":269485,"journal":{"name":"IP Indian Journal of Orthodontics and Dentofacial Research","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128157677","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 impacted upper anterior teeth by orthodontic traction- Minimally invasive approach 正畸牵引治疗上前牙阻生-微创入路

IP Indian Journal of Orthodontics and Dentofacial Research Pub Date : 2022-03-15 DOI: 10.18231/j.ijodr.2022.009

G. Gupta, D. Gupta, P. Gupta, Parth Shah, K. Rana, N. Chandra, Neel D Gupta

引用次数: 0

Segmental arch mechanics in Angle’s Class I malocclusion with crowding: A case report 夹角I类错牙合伴拥挤的节段弓力学1例

IP Indian Journal of Orthodontics and Dentofacial Research Pub Date : 2022-03-15 DOI: 10.18231/j.ijodr.2022.008

A. M., Muhamed Shaloob K M, Mohamed Nayaz V P, Muhamed Raheesh, Fathima Arzu T P

引用次数: 0

Rise & review of invisalign clear aligner system 无牙对准清晰对准器系统的兴起与回顾

IP Indian Journal of Orthodontics and Dentofacial Research Pub Date : 2022-03-15 DOI: 10.18231/j.ijodr.2022.002

N. Wajekar, Snehal Pathak, S. Mani

引用次数: 3

Different realms of twin block- A review article 双块的不同领域-一篇评论文章

IP Indian Journal of Orthodontics and Dentofacial Research Pub Date : 2022-01-15 DOI: 10.18231/j.ijodr.2021.048

Binny Dogra, Amita Handa, Nareen Chakravarthy, Aditi Subhashchandraji Sarda, Apurva Chavan, Komal Nalawade

引用次数: 1

Influence of tooth morphology on torque expression with preadjusted edgewise appliance in anterior teeth in a mixed indian population: An in-vitro study 牙齿形态对印度混血人群前牙预调节边缘矫形器扭矩表达的影响:一项体外研究

IP Indian Journal of Orthodontics and Dentofacial Research Pub Date : 2022-01-15 DOI: 10.18231/j.ijodr.2021.050

A. Kamboj, Atul Bali, Vineet Sharma, S. Chopra, D. Chaudhary, Prateek Mathur

{"title":"Influence of tooth morphology on torque expression with preadjusted edgewise appliance in anterior teeth in a mixed indian population: An in-vitro study","authors":"A. Kamboj, Atul Bali, Vineet Sharma, S. Chopra, D. Chaudhary, Prateek Mathur","doi":"10.18231/j.ijodr.2021.050","DOIUrl":"https://doi.org/10.18231/j.ijodr.2021.050","url":null,"abstract":"The effect of racial and ethnic variations of dental morphological traits on torque expression of preadjusted edgewise appliances has rarely been documented. This in vitro experiment was carried out with the aim to study the extent to which the anterior tooth morphology of a mixed Indian population affects torque expression of a preadjusted edgewise appliance. This study was conducted on extracted maxillary and mandibular anterior teeth of a mixed Indian population. These teeth were divided into two similar groups and were bonded with 0.018” Roth and MBT prescriptions. Full slot engagement was obtained using a 0.018” x 0.025” stainless steel wire to study how the variation in the tooth morphology affects the torque expression. Each tooth with the test wire engaged in the slot was radiographed using standardised procedures. The radiographs were photographed; images were transferred to a computer and enlarged 6 times. Printouts of the images were taken and the torque expression angle for each tooth of the two groups was measured. A wide range of torque expression was obtained reflecting the influence of tooth morphology on the expression of torque, suggestive of significant variations in the tooth morphology of the same tooth type. However, the mean torque expressions obtained in this study were comparable to the average values of torque prescribed for the two prescriptions.","PeriodicalId":269485,"journal":{"name":"IP Indian Journal of Orthodontics and Dentofacial Research","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122838257","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