Orthodontic Waves最新文献_第5页

Influence of dental education on the perception of overjet 牙学教育对溢牙认知的影响

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Orthodontic Waves Pub Date : 2020-07-19 DOI: 10.1080/13440241.2020.1791649

Fumihiko Nakamura, N. Sakai, N. Sako, W. Tome, N. Kitai

{"title":"Influence of dental education on the perception of overjet","authors":"Fumihiko Nakamura, N. Sakai, N. Sako, W. Tome, N. Kitai","doi":"10.1080/13440241.2020.1791649","DOIUrl":"https://doi.org/10.1080/13440241.2020.1791649","url":null,"abstract":"ABSTRACT Purpose The purpose of the present study was to investigate the degree of overjet deemed by subjects without dental education as needing orthodontic treatment, to determine whether dental education influences the perception of overjet, and to determine whether the degree of overjet considered to require orthodontic treatment changes after subjects acquire dental education. Materials and methods Ninety-six women in their first year immediately after entering a school for dental hygienists (first-year group), 34 women in their third year of education (third-year group), and 14 orthodontists (5 men and 9 women; Orthodontist group) were included. Follow-up investigation for the first-year group was conducted after they entered their third year. The dental models had varying overjet from −2.0 mm to +7.0 mm with differences of 1.0 mm each. The models were shown to each subject in random order, and each subject was asked to determine whether or not the models required orthodontic treatment. Results The ratio of subjects in whom orthodontic treatment was deemed to be necessary for overjet of 4.0 and 5.0 mm was significantly higher in the Orthodontist group than in the first- and third-year group, respectively. The ratio of subjects who deemed orthodontic treatment necessary for overjet of 0.0 mm in the third-year group was significantly higher than that in the first-year group both in the cross-sectional and longitudinal data. Conclusions The dental education does appear to influence the perception of edge-to-edge occlusion.","PeriodicalId":43169,"journal":{"name":"Orthodontic Waves","volume":"79 1","pages":"89 - 94"},"PeriodicalIF":0.4,"publicationDate":"2020-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13440241.2020.1791649","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43546934","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

Comparison of Roth and McLaughlin-Bennet-Trevisi prescriptions as two popular pre-adjusted orthodontic bracket systems: a systematic review Roth和McLaughlin Bennet Trevisi处方作为两种流行的预调整正畸托槽系统的比较：系统综述

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Orthodontic Waves Pub Date : 2020-06-17 DOI: 10.1080/13440241.2020.1777798

Parastoo Namdar, Erfan Bardideh, Farzaneh Lal Alizadeh, A. Jahanbin, N. Eslami

{"title":"Comparison of Roth and McLaughlin-Bennet-Trevisi prescriptions as two popular pre-adjusted orthodontic bracket systems: a systematic review","authors":"Parastoo Namdar, Erfan Bardideh, Farzaneh Lal Alizadeh, A. Jahanbin, N. Eslami","doi":"10.1080/13440241.2020.1777798","DOIUrl":"https://doi.org/10.1080/13440241.2020.1777798","url":null,"abstract":"ABSTRACT Objectives This systematic review aimed to critically evaluate the available evidence on the use of MBT and Roth prescriptions as fixed orthodontic appliances. Search methods Following the seven stage recommended in the Cochrane Handbook, this systematic review was conducted by searching five electronic databases, including Google scholar, PubMed, Cochrane Database of Abstracts of Reviews of Effects, Cochrane Central Register of Controlled Trials, ISI Web of Science and Scopus from the beginning to 2020 were searched. The reference lists of the related studies were also hand searched. Results The search process resulted in the identification of 107 papers, 104 and 3 cases of which were obtained through electronic and manual searches, respectively. After the removal of the duplicates and unrelated articles in the initial screening, 91 studies were remained to be screened based on inclusion and exclusion criteria. The second screening led to the inclusion of nine papers in the study. Conclusion Our systematic review was indicative of the lack of sufficient information regarding the efficiency of MBT and Roth prescriptions to support the evidence-based clinical use of one of these prescriptions for fixed orthodontic appliances.","PeriodicalId":43169,"journal":{"name":"Orthodontic Waves","volume":"79 1","pages":"65 - 75"},"PeriodicalIF":0.4,"publicationDate":"2020-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13440241.2020.1777798","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43429665","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

A novel and simple design of the closing loop producing optimal force magnitude and moment-to-force ratio for en-masse retraction of anterior teeth 一种新颖简单的闭合环设计，可产生最佳的力大小和力矩-力比，用于前牙整体回缩

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Orthodontic Waves Pub Date : 2020-06-05 DOI: 10.1080/13440241.2020.1770558

S. Yamaoka, R. Hamanaka, T. Nguyen, Sachio Jinnai, Junya Tominaga, Y. Koga, N. Yoshida

{"title":"A novel and simple design of the closing loop producing optimal force magnitude and moment-to-force ratio for en-masse retraction of anterior teeth","authors":"S. Yamaoka, R. Hamanaka, T. Nguyen, Sachio Jinnai, Junya Tominaga, Y. Koga, N. Yoshida","doi":"10.1080/13440241.2020.1770558","DOIUrl":"https://doi.org/10.1080/13440241.2020.1770558","url":null,"abstract":"ABSTRACT Purpose: The aim of this study was to clarify the mechanical conditions of loop activation that produce the optimal force system allowing controlled movement of the anterior teeth. Materials and Methods: The closing loop examined in this study was a 10-mm-high teardrop type bent from a 0.017 × 0.025-inch stainless steel archwire. A loop design that can generate a high moment-to-force (M/F) ratio and the optimal force magnitude was investigated by varying the rate of the cross-sectional reduction of the loop apex, the amount of loop activation and the degree of gable bend. Forces and moments acting on closing loops were calculated using structural analysis based on the tangent stiffness method. Results: A force magnitude of 302 g and an M/F ratio higher than 10 (sufficiently high to achieve bodily movement of the anterior teeth) could be produced when the thickness of the cross-section of a 10-mm-high teardrop loop was reduced by half for a distance of 3 mm from the apex and a gable bend of 30° was incorporated into the loop. Conclusions: The optimal force magnitude and M/F ratio for achieving controlled tipping or bodily movement of the anterior teeth can be produced by partially reducing the thickness of the teardrop loop, and by placing a gable bend of 20° to 30° in the 0.018-inch bracket slot system.","PeriodicalId":43169,"journal":{"name":"Orthodontic Waves","volume":"79 1","pages":"77 - 82"},"PeriodicalIF":0.4,"publicationDate":"2020-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13440241.2020.1770558","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48243310","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: 1

Soft tissues cephalometric norms for a sample of Sudanese adults. Part II: Arnett’s analysis 苏丹成年人样本的软组织头颅测量标准。第二部分:Arnett的分析

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Orthodontic Waves Pub Date : 2020-06-03 DOI: 10.1080/13440241.2020.1770561

M. Hamid, A. Abuaffan

引用次数: 1

Surgical and orthodontic approach for a patient with a severely constricted maxillary arch caused by bilateral cleft lip and palate 双侧唇腭裂致上颌弓严重狭窄患者的外科及正畸治疗方法

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Orthodontic Waves Pub Date : 2020-04-20 DOI: 10.1080/13440241.2020.1751456

A. Oka, H. Kurosaka, K. Nakatsugawa, T. Yamashiro

{"title":"Surgical and orthodontic approach for a patient with a severely constricted maxillary arch caused by bilateral cleft lip and palate","authors":"A. Oka, H. Kurosaka, K. Nakatsugawa, T. Yamashiro","doi":"10.1080/13440241.2020.1751456","DOIUrl":"https://doi.org/10.1080/13440241.2020.1751456","url":null,"abstract":"ABSTRACT Purpose: Cleft lip and/or palate (CLP) is one of the most frequent craniofacial defects that could happen in 1/500 to 1/1000 live birth depending on different racial background. Among different patterns of facial cleft, complete bilateral cleft lip and palate (BCLP) is one of the most challenging cases for orthodontic and surgeons because of their deformed maxillary dental arch and severe skeletal discrepancy. It is also well known that CLP could occur as part of the phenotype in certain congenital diseases. However, from its extremely diversified phenotypic combination, some of the cases that we encounter remains difficult to diagnose. From these reasons, it is important to continuously report the outcome of orthodontic treatment in such cases which exhibit syndromic phenotypes with CLP.Material and Methods: In the present case report, an 18-year-old man with complete bilateral cleft lip and palate, skeletal Class III and open-bite with maxillary constriction, in addition to hypospadias, bubonocele, opisthotonus, and hypertonia was treated with edgewise appliance therapy combined with orthognathic surgery. The treatment began with surgically assisted rapid palatal expansion (SARPE) in anteroposterior and transverse dimensions with a three-way expander to increase the maxillary anteroposterior length and width. After the expansion, the patient underwent Le Fort I osteotomy and bilateral sagittal split osteotomy to correct skeletal Class III and open bite.Results and Conclusion: At the end of the surgical and orthodontic treatments, functional occlusion and an improved facial profile were achieved. We also discuss his diverse general phenotype due to his congenital disease.","PeriodicalId":43169,"journal":{"name":"Orthodontic Waves","volume":"79 1","pages":"127 - 134"},"PeriodicalIF":0.4,"publicationDate":"2020-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13440241.2020.1751456","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47271121","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

Soft tissues cephalometric norms for a sample of Sudanese adults. Part I: Legan and Burstone analysis 苏丹成年人样本的软组织头影测量规范。第一部分：Legan与Burstone分析

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Orthodontic Waves Pub Date : 2020-02-27 DOI: 10.1080/13440241.2020.1736784

M. Hamid, A. Abuaffan

{"title":"Soft tissues cephalometric norms for a sample of Sudanese adults. Part I: Legan and Burstone analysis","authors":"M. Hamid, A. Abuaffan","doi":"10.1080/13440241.2020.1736784","DOIUrl":"https://doi.org/10.1080/13440241.2020.1736784","url":null,"abstract":"ABSTRACT Purpose: To establish soft tissues cephalometric norms for orthognathic surgery in a sample of Sudanese adults. Materials and Methods: A total of 106 lateral cephalograms of Sudanese adults (55 females and 51 males) aged between 18 and 25 years (mean 22.8 years) were manually traced and analysed using Legan and Burstone Cephalometric analysis for orthognathic Surgery (COGS). Results: Sudanese sample, in comparison to Caucasian, had a more convex profile with larger angle of convexity and more prognathic maxillae, obtuse lower face-throat angle, more acute nasolabial angle, protrusive upper and lower lips with deeper labiomental sulci and greater maxillary incisors exposure with larger interlabial gap. Males had greater maxillary and mandibular prognathism, more obtuse lower face-throat angle and vertical height depth ratio than females. Females had larger vertical lip chin ratio, maxillary incisor exposure and interlabial gap. Conclusion: Considerable differences between the soft tissue profile configuration of Sudanese and Caucasian adults exist and also between Sudanese and other populations. These variations should be taken into account during diagnosis and treatment planning of orthognathic surgery.","PeriodicalId":43169,"journal":{"name":"Orthodontic Waves","volume":"79 1","pages":"49 - 55"},"PeriodicalIF":0.4,"publicationDate":"2020-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13440241.2020.1736784","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45756311","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: 2

Changes in condylar position with maxillary expansion in growing patients. A systematic review of clinical studies 生长期患者髁突位置随上颌扩大的变化。临床研究的系统综述

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Orthodontic Waves Pub Date : 2020-02-27 DOI: 10.1080/13440241.2020.1733297

Zhihui Wang, S. Obamiyi, S. Malik, P. Rossouw, R. Tallents, D. Michelogiannakis

{"title":"Changes in condylar position with maxillary expansion in growing patients. A systematic review of clinical studies","authors":"Zhihui Wang, S. Obamiyi, S. Malik, P. Rossouw, R. Tallents, D. Michelogiannakis","doi":"10.1080/13440241.2020.1733297","DOIUrl":"https://doi.org/10.1080/13440241.2020.1733297","url":null,"abstract":"ABSTRACT Purpose:The aim of the present systematic review was to assess the association between maxillary expansion (ME) and changes in condylar position in growing patients, including patients with functional unilateral posterior crossbite (FUPC), patients with bilateral posterior crossbite (BPC) and patients who have maxillary transverse deficiency (MTD) without posterior crossbite (PC). Materials and methods: Indexed databases were searched up to March 2019, and the following eligibility criteria were imposed: (a) original clinical studies; (b) growing patients; (c) intervention: influence of ME on condylar position; (d) radiographic evaluation of condylar position before and after ME; and (e) statistical analysis. Experimental studies, historic reviews, case reports, cases-series, letters to the Editor, commentaries, studies that did not specify the type of posterior crossbite (PC), studies that included combined ME-facemask intervention, and studies in adult patients were excluded. Quality assessment was performed using the Methodological Index for Non-Randomized Studies (MINORS) guidelines. Results:Eleven clinical studies were selected for data extraction. In 3 studies, significant changes in condylar position were observed bilaterally with ME in patients with FUPC. One study showed significant changes in condylar position with ME only in the non-crossbite sides; and 2 studies found no significant changes in condylar position with ME in patients with FUPC. One study reported significant changes in condylar position in both sides with ME in patients with bilateral PC. In patients without PC, 1 study showed significant changes in condylar position bilaterally with ME; and 2 studies reported no significant changes in condylar position. The mean MINORS score was 13.8 2.89 (out of 24). Conclusion:The association between ME and changes in condylar position in growing patients remains debatable.","PeriodicalId":43169,"journal":{"name":"Orthodontic Waves","volume":"79 1","pages":"1 - 10"},"PeriodicalIF":0.4,"publicationDate":"2020-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13440241.2020.1733297","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41558446","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: 2

Analysis of orthodontic wire springback to simplify wire bending 正畸金属丝回弹分析简化金属丝弯曲

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Orthodontic Waves Pub Date : 2020-02-27 DOI: 10.1080/13440241.2020.1741070

H. Kono, M. Kikuchi

引用次数: 2

Improvement of binding friction between stainless steel orthodontic wire and bracket by performing Rh-PTFE composite plating on the wire Rh-PTFE复合镀层改善不锈钢正畸丝与托槽结合摩擦

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Orthodontic Waves Pub Date : 2020-02-27 DOI: 10.1080/13440241.2020.1733180

Akihiro Koyama, T. Ono, M. Uo, Hajime Kiyokawa, Nobutaka Ohira, Y. Shima, Z. Kanno

{"title":"Improvement of binding friction between stainless steel orthodontic wire and bracket by performing Rh-PTFE composite plating on the wire","authors":"Akihiro Koyama, T. Ono, M. Uo, Hajime Kiyokawa, Nobutaka Ohira, Y. Shima, Z. Kanno","doi":"10.1080/13440241.2020.1733180","DOIUrl":"https://doi.org/10.1080/13440241.2020.1733180","url":null,"abstract":"ABSTRACT Purpose: During orthodontic treatment, it is important to ensure that the least frictional force is applied to the teeth to ensure optimal tooth movement. We applied electrolytic rhodium-polytetrafluoroethylene (Rh-PTFE) composite plating to stainless steel (SS) orthodontic wires with the aim of suppressing friction and corrosion in the wire and facilitating the longevity of treatment. Materials and methods: SS orthodontic wires were plated with a polytetrafluoroethylene (PTFE) particle suspended solution. The surface colour was changed to black with Rh-PTFE plating, and a homogeneous distribution of PTFE particles was observed in the plated layer using scanning electron microscopy (SEM). Results: The friction of Rh-PTFE plated wire with the SS bracket decreased to ½ to 1/3rd of the original force by increasing the PTFE content in the plated layer, despite the increase in surface roughness with plating. Corrosion suppression was also observed when Rh-PTFE plating was applied to a nickel wire. Conclusion: Ensuring smooth movement between the wire and bracket decreases the risk of metal dissolution, which can be effectively be achieved with Rh-PTFE plating. This finding will significantly assist orthodontists in choosing plated wires to ensure a more effective course of treatment for their patients in the future.","PeriodicalId":43169,"journal":{"name":"Orthodontic Waves","volume":"79 1","pages":"39 - 47"},"PeriodicalIF":0.4,"publicationDate":"2020-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13440241.2020.1733180","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41741682","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

Does corticotomy accelerate canine retraction with adequate anchorage control? A split mouth randomized controlled trial 皮质切开术是否能在适当的锚定控制下加速犬的后缩?裂口随机对照试验

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Orthodontic Waves Pub Date : 2020-02-26 DOI: 10.1080/13440241.2020.1712824

Surbhi Sharma, Seema Gupta, S. Ahuja, Eenal Bhambri, Rohini Sharma

{"title":"Does corticotomy accelerate canine retraction with adequate anchorage control? A split mouth randomized controlled trial","authors":"Surbhi Sharma, Seema Gupta, S. Ahuja, Eenal Bhambri, Rohini Sharma","doi":"10.1080/13440241.2020.1712824","DOIUrl":"https://doi.org/10.1080/13440241.2020.1712824","url":null,"abstract":"ABSTRACT Purpose: To assess the effects of corticotomy on the distal movement of canine and to assess the amount of molar anchor loss. Materials and Methods: 14 patients were selected for this prospective, split-mouth, randomized controlled trial. After bilateral maxillary first premolar extractions, corticotomy was done distal to canine on one side and 150 g of force was applied. The rate of canine and molar movement, tipping and rotation were evaluated for control and experimental side. The movement of canine and anchor loss was assessed at an interval of 3 weeks, using study models, till single canine retraction was complete. Subjective assessment of the post-surgical pain, swelling, discomfort and an overall patient perception of the surgical procedure was assessed at two time points. Results: There was a significant increase in the rate of canine movement on the experiment side at T1 and T2 (p ≤ 0.01). Anchor loss was found to be present on both the sides but the difference was not statistically significant (p > 0.05). The mesiodistal tipping of canine was found to be greater on the control side than the experiment side whereas there was no statistically significant difference in the mesiodistal tipping of the molar on either side (p > 0.05). The experiment group showed a greater rotation of canine than the control (p ≤ 0.05), however, the rotation of molar was statistically insignificant. Conclusion: Corticotomy-assisted canine retraction causes a significant increase in the rate of canine retraction for the initial 2 months of the post-corticotomy period.","PeriodicalId":43169,"journal":{"name":"Orthodontic Waves","volume":"79 1","pages":"11 - 21"},"PeriodicalIF":0.4,"publicationDate":"2020-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13440241.2020.1712824","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48639439","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: 4