Abstract Background/Objective The Tanaka and Johnston mixed dentition analysis is a widely used method to predict the size of unerupted permanent canines and premolars. The aim of the present study was to determine the applicability of the Tanaka and Johnston analysis to Western Australian adolescents and develop a new regression equation. Methods Five hundred participants (323 females, 177 males) meeting the inclusion criteria were selected from private orthodontic clinics. The mesiodistal dimensions of all permanent teeth were retrieved from pre-orthodontic treatment digital dental records using Invisalign® technology (Invisalign®, Align Technology, Santa Clara, CA, USA) and analysed using a predicted value derived from the Tanaka and Johnston analysis. Correlation and linear regression analyses were applied to develop new regression equations. Result A significant difference was found between the actual and predicted values derived from the Tanaka and Johnston analysis. A significant correlation was observed between the sum of the permanent mandibular incisors and the sum of the maxillary and mandibular canine and premolars (0.58–0.74). New regression equations and tables were derived from the study population. Conclusion The Tanaka and Johnston analysis overestimated the mesiodistal dimensions of permanent canines and premolars. The developed regression equation and tables may be used for orthodontic diagnosis and treatment planning in Western Australian adolescents.
背景/目的Tanaka和Johnston混合牙列分析是一种广泛应用于预测未出牙恒牙和前磨牙大小的方法。本研究的目的是确定Tanaka和Johnston分析对西澳大利亚青少年的适用性，并建立一个新的回归方程。方法选取符合入选标准的私立正畸门诊患者500人，其中女性323人，男性177人。使用Invisalign®技术(Invisalign®，Align technology, Santa Clara, CA, USA)从正畸治疗前的数字牙科记录中检索所有恒牙的中远端尺寸，并使用Tanaka和Johnston分析得出的预测值进行分析。运用相关分析和线性回归分析建立了新的回归方程。结果Tanaka和Johnston分析得出的实际值与预测值之间存在显著差异。下颌恒切牙总数与上颌、下颌犬齿和前磨牙总数有显著相关(0.58 ~ 0.74)。从研究人群中导出了新的回归方程和表。结论Tanaka和Johnston的分析高估了恒牙和前磨牙的中远端尺寸。所建立的回归方程和回归表可用于西澳大利亚州青少年正畸诊断和治疗计划。
{"title":"The applicability of the Tanaka and Johnston analysis in a contemporary Western Australian population","authors":"S. Abaid, S. Zafar, E. Kruger, M. Tennant","doi":"10.2478/aoj-2022-0018","DOIUrl":"https://doi.org/10.2478/aoj-2022-0018","url":null,"abstract":"Abstract Background/Objective The Tanaka and Johnston mixed dentition analysis is a widely used method to predict the size of unerupted permanent canines and premolars. The aim of the present study was to determine the applicability of the Tanaka and Johnston analysis to Western Australian adolescents and develop a new regression equation. Methods Five hundred participants (323 females, 177 males) meeting the inclusion criteria were selected from private orthodontic clinics. The mesiodistal dimensions of all permanent teeth were retrieved from pre-orthodontic treatment digital dental records using Invisalign® technology (Invisalign®, Align Technology, Santa Clara, CA, USA) and analysed using a predicted value derived from the Tanaka and Johnston analysis. Correlation and linear regression analyses were applied to develop new regression equations. Result A significant difference was found between the actual and predicted values derived from the Tanaka and Johnston analysis. A significant correlation was observed between the sum of the permanent mandibular incisors and the sum of the maxillary and mandibular canine and premolars (0.58–0.74). New regression equations and tables were derived from the study population. Conclusion The Tanaka and Johnston analysis overestimated the mesiodistal dimensions of permanent canines and premolars. The developed regression equation and tables may be used for orthodontic diagnosis and treatment planning in Western Australian adolescents.","PeriodicalId":48559,"journal":{"name":"Australasian Orthodontic Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43462423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Background The latest trend in scientific literature review is to scrutinise the practices of false or biased reporting of findings, which is rightly termed as ‘spin’. In recent years, accelerated tooth movement has gained attention from the orthodontic community, but the findings still remain unclear and controversial. Objectives To estimate the frequency of distorted claims and over-interpretation of abstracts of systematic reviews related to accelerated orthodontic tooth movement. The objective was to differentiate the type of claim and to determine its prevalence. Methods A literature search was performed using the Cochrane library and the top five most prominent orthodontic journals for systematic reviews on accelerated orthodontics were identified by applying appropriate key words. According to pre-set selection criteria, only systematic reviews published between January 2010 and September 2021 were included. The selected articles were scrutinised for the assigned exclusion criteria. The articles were finally scanned for false claims by two independent reviewers. The identified claims fell into either the categories of misleading interpretation, misleading reporting or misleading extrapolation. The obtained data were tabulated and analysed using the one-way ANOVA statistical test to indicate the difference between the different types of reported claims. Results There were 98 systematic reviews identified in total, of which 59 articles met the selection criteria and 39 articles were excluded. Of the 59 included articles, 38 systematic reviews had exaggerated claims. Twenty-two of the reported claims came under the misleading reporting category, 10 fell under the misleading interpretation category and 6 came under the misleading extrapolation category. The difference noted between the reporting prevalence of different types of claim was statistically significant (P < 0.001). In misleading reporting, it was noted that most of the systematic reviews refrained from reporting the adverse effects of treatment. Conclusion The prevalence of exaggerated claims is high in the abstracts of systematic reviews related to accelerated orthodontic tooth movement. It is recommended that a clinician critically assess the claims presented in systematic reviews which are considered to be the hallmark articles of evidence-based practice. Orthodontists should be careful when applying the findings in clinical practice.
{"title":"Evaluation of exaggerated claims in the abstracts of systematic reviews reporting accelerated orthodontic tooth movement: a meta research analysis","authors":"T. Shyagali, Ayesha Rathore, Shanya Kapoor, Abhishek Gupta, Anil Tiwari, Rahul Patidar","doi":"10.2478/aoj-2022-0028","DOIUrl":"https://doi.org/10.2478/aoj-2022-0028","url":null,"abstract":"Abstract Background The latest trend in scientific literature review is to scrutinise the practices of false or biased reporting of findings, which is rightly termed as ‘spin’. In recent years, accelerated tooth movement has gained attention from the orthodontic community, but the findings still remain unclear and controversial. Objectives To estimate the frequency of distorted claims and over-interpretation of abstracts of systematic reviews related to accelerated orthodontic tooth movement. The objective was to differentiate the type of claim and to determine its prevalence. Methods A literature search was performed using the Cochrane library and the top five most prominent orthodontic journals for systematic reviews on accelerated orthodontics were identified by applying appropriate key words. According to pre-set selection criteria, only systematic reviews published between January 2010 and September 2021 were included. The selected articles were scrutinised for the assigned exclusion criteria. The articles were finally scanned for false claims by two independent reviewers. The identified claims fell into either the categories of misleading interpretation, misleading reporting or misleading extrapolation. The obtained data were tabulated and analysed using the one-way ANOVA statistical test to indicate the difference between the different types of reported claims. Results There were 98 systematic reviews identified in total, of which 59 articles met the selection criteria and 39 articles were excluded. Of the 59 included articles, 38 systematic reviews had exaggerated claims. Twenty-two of the reported claims came under the misleading reporting category, 10 fell under the misleading interpretation category and 6 came under the misleading extrapolation category. The difference noted between the reporting prevalence of different types of claim was statistically significant (P < 0.001). In misleading reporting, it was noted that most of the systematic reviews refrained from reporting the adverse effects of treatment. Conclusion The prevalence of exaggerated claims is high in the abstracts of systematic reviews related to accelerated orthodontic tooth movement. It is recommended that a clinician critically assess the claims presented in systematic reviews which are considered to be the hallmark articles of evidence-based practice. Orthodontists should be careful when applying the findings in clinical practice.","PeriodicalId":48559,"journal":{"name":"Australasian Orthodontic Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46797439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Objectives: The aim of the present study was to investigate the effect of third molars on the efficiency and biomechanics of a novel miniscrew-supported 3D® Maxillary Bimetric Distalising Arch (3D-MBDA). Methods: Twenty-three patients, whose third molars were either extracted at the beginning of treatment (Group 1, n =11) or retained (Group 2, n =12), were included in the study. Lateral cephalometric films and dental casts, taken at the beginning (T0) and at the end of upper molar distalisation (T1), were analysed to study the differences between groups. Results: Crown distalisation of the first molars was similar between the groups; however, root distalisation, both at the trifurcation and apex levels, intrusion at the mesiobuccal cusp tip, and the distalisation rate were significantly higher in Group 1. The resultant tipping of the first molars in both groups was mesially-directed, unlike the usual distal tipping. The second molars distalised more, displaced less vestibularly and rotated mesiobuccally in Group 1, whereas they demonstrated a significantly higher vestibular displacement and distobuccal rotation in Group 2. The mean distalisation time was significantly shorter in Group 1 when compared to Group 2. The miniscrew success rate was 95.5% for Group 1 and 91.7% for Group 2. Conclusion: The miniscrew-supported 3D-MBDA was found to have greater effects on root distalisation and the final inclination of the molars. The third molars were associated with limited root movement, unfavourable displacement of the second molars, as well as a slower distalisation rate. Therefore, the extraction of third molars prior to distalisation is recommended, especially when the miniscrew-supported 3D-MBDA is the appliance choice.
{"title":"The effect of third molars on maxillary molar distalisation using a miniscrew-supported 3D® maxillary bimetric distalising arch","authors":"Nilüfer İrem Tunçer, Ayça Arman-Özçırpıcı","doi":"10.2478/aoj-2022-033","DOIUrl":"https://doi.org/10.2478/aoj-2022-033","url":null,"abstract":"Abstract Objectives: The aim of the present study was to investigate the effect of third molars on the efficiency and biomechanics of a novel miniscrew-supported 3D® Maxillary Bimetric Distalising Arch (3D-MBDA). Methods: Twenty-three patients, whose third molars were either extracted at the beginning of treatment (Group 1, n =11) or retained (Group 2, n =12), were included in the study. Lateral cephalometric films and dental casts, taken at the beginning (T0) and at the end of upper molar distalisation (T1), were analysed to study the differences between groups. Results: Crown distalisation of the first molars was similar between the groups; however, root distalisation, both at the trifurcation and apex levels, intrusion at the mesiobuccal cusp tip, and the distalisation rate were significantly higher in Group 1. The resultant tipping of the first molars in both groups was mesially-directed, unlike the usual distal tipping. The second molars distalised more, displaced less vestibularly and rotated mesiobuccally in Group 1, whereas they demonstrated a significantly higher vestibular displacement and distobuccal rotation in Group 2. The mean distalisation time was significantly shorter in Group 1 when compared to Group 2. The miniscrew success rate was 95.5% for Group 1 and 91.7% for Group 2. Conclusion: The miniscrew-supported 3D-MBDA was found to have greater effects on root distalisation and the final inclination of the molars. The third molars were associated with limited root movement, unfavourable displacement of the second molars, as well as a slower distalisation rate. Therefore, the extraction of third molars prior to distalisation is recommended, especially when the miniscrew-supported 3D-MBDA is the appliance choice.","PeriodicalId":48559,"journal":{"name":"Australasian Orthodontic Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47843902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Yoshida, M. Seiryu, Atsushi Mayama, T. Takano-Yamamoto, I. Mizoguchi
Abstract The present article reports the successful non-extraction orthodontic treatment using miniscrew anchorage in a patient who presented with maxillary left central incisor loss and unstable jaw movements. The chief complaints of the 23-year-old female patient were her protruding teeth and crowding of the mandibular anterior segment. The patient lost her maxillary left central incisor as a result of a traumatic injury during childhood. However, the crown was saved and attached to the adjacent teeth. The patient was diagnosed with a skeletal Class III and Angle Class III dental malocclusion. The jaw movements determined by a 6 degrees of freedom jaw movement recording system were unstable and irregular. Miniscrew anchorage was applied for distalisation of the maxillary right dentition and the mandibular dentition during non-extraction treatment. The maxillary left dentition was mesialised using miniscrew anchorage to close the space as a result of the lost maxillary left central incisor. After an active treatment duration of 36 months, the patient achieved a Class II molar relationship on the left side, a Class I on the right side, an optimal overjet and overbite, and a pleasing facial profile. Despite the asymmetric molar relationships, functionally stable and smooth jaw movements were established. The skeletal, occlusal and functional stability remained satisfactory after a 2-year retention period. In conclusion, miniscrew anchorage was valuable in supporting asymmetric tooth movement during non-extraction appliance treatment in a patient who presented with traumatic unilateral tooth loss.
{"title":"Class III malocclusion with traumatic unilateral maxillary central incisor loss treated using orthodontic miniscrews: a case report","authors":"M. Yoshida, M. Seiryu, Atsushi Mayama, T. Takano-Yamamoto, I. Mizoguchi","doi":"10.2478/aoj-2022-032","DOIUrl":"https://doi.org/10.2478/aoj-2022-032","url":null,"abstract":"Abstract The present article reports the successful non-extraction orthodontic treatment using miniscrew anchorage in a patient who presented with maxillary left central incisor loss and unstable jaw movements. The chief complaints of the 23-year-old female patient were her protruding teeth and crowding of the mandibular anterior segment. The patient lost her maxillary left central incisor as a result of a traumatic injury during childhood. However, the crown was saved and attached to the adjacent teeth. The patient was diagnosed with a skeletal Class III and Angle Class III dental malocclusion. The jaw movements determined by a 6 degrees of freedom jaw movement recording system were unstable and irregular. Miniscrew anchorage was applied for distalisation of the maxillary right dentition and the mandibular dentition during non-extraction treatment. The maxillary left dentition was mesialised using miniscrew anchorage to close the space as a result of the lost maxillary left central incisor. After an active treatment duration of 36 months, the patient achieved a Class II molar relationship on the left side, a Class I on the right side, an optimal overjet and overbite, and a pleasing facial profile. Despite the asymmetric molar relationships, functionally stable and smooth jaw movements were established. The skeletal, occlusal and functional stability remained satisfactory after a 2-year retention period. In conclusion, miniscrew anchorage was valuable in supporting asymmetric tooth movement during non-extraction appliance treatment in a patient who presented with traumatic unilateral tooth loss.","PeriodicalId":48559,"journal":{"name":"Australasian Orthodontic Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48756185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Sivarajan, N. N. Zakaria, Noor Asyikin Azmily, M. C. Wey, M. A. El-Ghafour, Mona M. Salah Fayed
Abstract Objective The present systematic review aimed to determine cephalometric values that may be used as a guide in deciding between orthodontic camouflage and orthognathic surgery to treat a Class III malocclusion in adults. In addition, a secondary aim was to identify treatment complications and aesthetic perceptions by laypersons/orthodontists. Methods Without a language restriction, an electronic search of six databases and a hand search of three orthodontic journals were performed until September 2021. All studies comparing orthodontic camouflage and orthognathic surgery in Class III malocclusion patients, were included. Data extraction was carried out independently by two authors with disagreement resolved by a third author. The risk of bias related to individual studies was appraised using a modified version of the STROBE checklist. The results were summarised qualitatively, and no meta-analysis was undertaken due to the high heterogeneity between the studies. Results With the quality of evidence ranging from moderate to high, six retrospective studies were included. A cephalometric analysis comprising the Holdaway angle, overjet, the Wits appraisal, lower incisor inclination, the maxillary-mandibular ratio, overbite, gonial angle and an additional combination were used as a guide. No treatment complications were reported. One study examined the perception of facial profile attractiveness in borderline surgical Class III malocclusions and found no difference in outcome and significant improvements in both camouflage and surgical groups. Conclusion The existing evidence is insufficient to identify a cephalometric parameter threshold in deciding between orthodontic camouflage and orthognathic surgery. PROSPERO database protocol no. CRD42020165164.
{"title":"Determination of treatment options for Class III malocclusions in adult patients based on cephalometric values: a systematic review","authors":"S. Sivarajan, N. N. Zakaria, Noor Asyikin Azmily, M. C. Wey, M. A. El-Ghafour, Mona M. Salah Fayed","doi":"10.2478/aoj-2022-0021","DOIUrl":"https://doi.org/10.2478/aoj-2022-0021","url":null,"abstract":"Abstract Objective The present systematic review aimed to determine cephalometric values that may be used as a guide in deciding between orthodontic camouflage and orthognathic surgery to treat a Class III malocclusion in adults. In addition, a secondary aim was to identify treatment complications and aesthetic perceptions by laypersons/orthodontists. Methods Without a language restriction, an electronic search of six databases and a hand search of three orthodontic journals were performed until September 2021. All studies comparing orthodontic camouflage and orthognathic surgery in Class III malocclusion patients, were included. Data extraction was carried out independently by two authors with disagreement resolved by a third author. The risk of bias related to individual studies was appraised using a modified version of the STROBE checklist. The results were summarised qualitatively, and no meta-analysis was undertaken due to the high heterogeneity between the studies. Results With the quality of evidence ranging from moderate to high, six retrospective studies were included. A cephalometric analysis comprising the Holdaway angle, overjet, the Wits appraisal, lower incisor inclination, the maxillary-mandibular ratio, overbite, gonial angle and an additional combination were used as a guide. No treatment complications were reported. One study examined the perception of facial profile attractiveness in borderline surgical Class III malocclusions and found no difference in outcome and significant improvements in both camouflage and surgical groups. Conclusion The existing evidence is insufficient to identify a cephalometric parameter threshold in deciding between orthodontic camouflage and orthognathic surgery. PROSPERO database protocol no. CRD42020165164.","PeriodicalId":48559,"journal":{"name":"Australasian Orthodontic Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45187694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Introduction The sale of orthodontic materials, considered as medical devices, is regulated in order to protect patients. The availability of orthodontic products on e-commerce platforms, however, may go unregulated and compromise patient safety. Objective The present study aimed to investigate the sale of fixed orthodontic appliances on a local and global e-commerce platform. Materials and Methods A cross-sectional analysis of orthodontic materials sold on Shopee and Amazon was conducted using a specific keyword search for brackets, arch wires and ligatures. After deleting duplicates and irrelevant search results, the top 50 products for each keyword search were analysed. Product name, the type of product, seller, cost, star rating, the number of reviews, the number of sales, shipping location and brand identification were recorded. Brand registration with a medical device regulatory authority was checked. Collected data were tabulated in Google (spread)sheet to derive descriptive statistics and frequency tables. Results A total of 800 search results were screened. Three hundred and forty-eight relevant results were identified, approximately two-thirds of which originated from Shopee. Ligatures generated the highest search outcome in both Shopee (39%) and Amazon (80%). Fixed orthodontic materials sold on Shopee resulted in a larger number of reviews, higher star ratings and a lower cost per item compared to those supplied by Amazon. Products on Amazon were more likely to have brand identification (97%) compared to Shopee (5%). None of the identifiable brands on Shopee were registered with regulatory bodies, whereas eight products listed on Amazon were registered. A large portion of shipping locations originated from China for both e-commerce platforms. Conclusions Orthodontic brackets, arch wires and ligatures are more readily available on Shopee compared to Amazon. The quality and safety of these products cannot be assured as the majority of the products were either not clearly labelled or their registration was not identified under the regulation of medical devices.
{"title":"Orthodontics on sale: fixed appliances on E-commerce platforms","authors":"Y. Kamarudin, N. N. Zakaria, Violette Ong Xinhui","doi":"10.21307/aoj-2022.003","DOIUrl":"https://doi.org/10.21307/aoj-2022.003","url":null,"abstract":"Abstract Introduction The sale of orthodontic materials, considered as medical devices, is regulated in order to protect patients. The availability of orthodontic products on e-commerce platforms, however, may go unregulated and compromise patient safety. Objective The present study aimed to investigate the sale of fixed orthodontic appliances on a local and global e-commerce platform. Materials and Methods A cross-sectional analysis of orthodontic materials sold on Shopee and Amazon was conducted using a specific keyword search for brackets, arch wires and ligatures. After deleting duplicates and irrelevant search results, the top 50 products for each keyword search were analysed. Product name, the type of product, seller, cost, star rating, the number of reviews, the number of sales, shipping location and brand identification were recorded. Brand registration with a medical device regulatory authority was checked. Collected data were tabulated in Google (spread)sheet to derive descriptive statistics and frequency tables. Results A total of 800 search results were screened. Three hundred and forty-eight relevant results were identified, approximately two-thirds of which originated from Shopee. Ligatures generated the highest search outcome in both Shopee (39%) and Amazon (80%). Fixed orthodontic materials sold on Shopee resulted in a larger number of reviews, higher star ratings and a lower cost per item compared to those supplied by Amazon. Products on Amazon were more likely to have brand identification (97%) compared to Shopee (5%). None of the identifiable brands on Shopee were registered with regulatory bodies, whereas eight products listed on Amazon were registered. A large portion of shipping locations originated from China for both e-commerce platforms. Conclusions Orthodontic brackets, arch wires and ligatures are more readily available on Shopee compared to Amazon. The quality and safety of these products cannot be assured as the majority of the products were either not clearly labelled or their registration was not identified under the regulation of medical devices.","PeriodicalId":48559,"journal":{"name":"Australasian Orthodontic Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41496975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Objectives: To determine if an association exists between the prevalence of white spot lesions (WSLs) and orthodontic treatment using clear aligners. Methods: Electronic databases were searched with no restrictions on year. Article selection criteria included human clear aligner studies conducted during the permanent dentition and with a full description of the applied technique and oral hygiene status. Results: The search strategy resulted in a total of 4177 articles. After title and abstract screening, 156 relevant articles were identified from which five remained after the application of the exclusion criteria. The articles were mostly classified as having a low risk of bias. Conclusions: Clear aligner therapy induces a lower development rate of new WSLs than orthodontic treatment by fixed appliances. In patients who have poor oral hygiene and/or existing WSLs, clear aligner treatment could be recommended.
{"title":"Prevalence of white spot lesions during clear aligner therapy: a systematic review","authors":"Feridun Abay, S. Kutalmış Buyuk, Y. Korkmaz","doi":"10.2478/aoj-2022-0035","DOIUrl":"https://doi.org/10.2478/aoj-2022-0035","url":null,"abstract":"Abstract Objectives: To determine if an association exists between the prevalence of white spot lesions (WSLs) and orthodontic treatment using clear aligners. Methods: Electronic databases were searched with no restrictions on year. Article selection criteria included human clear aligner studies conducted during the permanent dentition and with a full description of the applied technique and oral hygiene status. Results: The search strategy resulted in a total of 4177 articles. After title and abstract screening, 156 relevant articles were identified from which five remained after the application of the exclusion criteria. The articles were mostly classified as having a low risk of bias. Conclusions: Clear aligner therapy induces a lower development rate of new WSLs than orthodontic treatment by fixed appliances. In patients who have poor oral hygiene and/or existing WSLs, clear aligner treatment could be recommended.","PeriodicalId":48559,"journal":{"name":"Australasian Orthodontic Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43204289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cynthia Shi, Yanlu Feng, Yu-Chen Hsiao, J. Smith, Carrol Jin, M. Farella, L. Mei
Abstract Objectives To investigate the current commercially available clear aligners related to brands, companies, Google trends, and marketing claims presented on their official websites. Materials and methods A search was conducted in October 2020 to identify the relevant web-based information, using three languages (English, Chinese, and Korean) and search terms “clear aligner”, , , and in four search engines (Google, Bing, Baidu, and Naver) to identify current clear aligner companies. Each company website was reviewed and assessed for its marketing claims. Results A total of 75 clear aligner brands were identified and included in the study, and 280 claims from their official websites were analysed. Most (70.7%) of the companies made claims regarding “aesthetics”, 66.7% made claims regarding “increased comfort”, 58.7% made claims regarding “shorter treatment time”, and 56.0% of the companies made claims regarding “superior material”. Other claims were made regarding their “novel technology”, “superior hygiene”, “tracking Apps”, “remote monitoring”, and “reduced in-office visits”. Of these marketing claims, only 4.5% cited references supporting the company’s website claims; however, the references were mainly derived from internal company research. Conclusions Using three languages (English, Chinese, and Korean), 75 different brands of clear aligners were currently found online. Most of the marketing claims from the clear aligner companies’ official websites were not referenced to quality scientific studies. Clinicians and patients should critically appraise the content of company claims and advertisements.
{"title":"Clear aligners brands and marketing claims: An overview of available information on the web","authors":"Cynthia Shi, Yanlu Feng, Yu-Chen Hsiao, J. Smith, Carrol Jin, M. Farella, L. Mei","doi":"10.2478/aoj-2022-0025","DOIUrl":"https://doi.org/10.2478/aoj-2022-0025","url":null,"abstract":"Abstract Objectives To investigate the current commercially available clear aligners related to brands, companies, Google trends, and marketing claims presented on their official websites. Materials and methods A search was conducted in October 2020 to identify the relevant web-based information, using three languages (English, Chinese, and Korean) and search terms “clear aligner”, , , and in four search engines (Google, Bing, Baidu, and Naver) to identify current clear aligner companies. Each company website was reviewed and assessed for its marketing claims. Results A total of 75 clear aligner brands were identified and included in the study, and 280 claims from their official websites were analysed. Most (70.7%) of the companies made claims regarding “aesthetics”, 66.7% made claims regarding “increased comfort”, 58.7% made claims regarding “shorter treatment time”, and 56.0% of the companies made claims regarding “superior material”. Other claims were made regarding their “novel technology”, “superior hygiene”, “tracking Apps”, “remote monitoring”, and “reduced in-office visits”. Of these marketing claims, only 4.5% cited references supporting the company’s website claims; however, the references were mainly derived from internal company research. Conclusions Using three languages (English, Chinese, and Korean), 75 different brands of clear aligners were currently found online. Most of the marketing claims from the clear aligner companies’ official websites were not referenced to quality scientific studies. Clinicians and patients should critically appraise the content of company claims and advertisements.","PeriodicalId":48559,"journal":{"name":"Australasian Orthodontic Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46575761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kshetrimayum Martina, P. Kumar, V. Misra, Sonal Attri, A. Yadav, Rohan Jacob Sam, R. Kumar
Abstract Objective: To evaluate the effectiveness and influence of micro-osteoperforation on the rate of canine retraction and patient pain perception. Method: In this prospective split-mouth clinical trial, forty adult patients in the age range of 15-25 years (18 men and 22 women) requiring bilateral first premolar extraction and upper canine retraction involving maximum anchorage, were enrolled. Two groups of 20 patients each (Group-I and Group-II) were randomly assigned and were further subdivided into subgroups A and B according to the allocation of a maxillary quadrant. Group-I A and Group-II A were the experimental quadrants in which 3 micro-osteoperforations (MOPs) and 2 MOPs were performed, respectively, and Group-I B and Group-II B served as control quadrants. With the help of a mini-screw (1.6 mm diameter, 8 mm length), MOPs were created distal to the maxillary canine following which, canine retraction continued for three months. The collection of data was obtained from monthly plaster models. The primary outcomes were the rate of canine retraction per month and the total distance moved by the canines. The secondary outcomes were to assess patient pain following the MOP procedure. Result: A significant increase in the rate of tooth movement was seen in Group-I A, whereas, in Group II, there was no significant difference in the movement rate between the subgroups A and B. In addition, Group-I A showed a significant increase in the rate of canine retraction compared to Group-II A. The patients did not report significant pain, nor discomfort nor other complications during or after the procedure. Conclusion: Micro-osteoperforation appears to be an effective, comfortable, and safe procedure to accelerate tooth movement and significantly reduce the duration of orthodontic treatment.
{"title":"To evaluate the rate of canine retraction and pain perception following micro-osteoperforation – a split-mouth clinical study","authors":"Kshetrimayum Martina, P. Kumar, V. Misra, Sonal Attri, A. Yadav, Rohan Jacob Sam, R. Kumar","doi":"10.21307/aoj-2022-0038","DOIUrl":"https://doi.org/10.21307/aoj-2022-0038","url":null,"abstract":"Abstract Objective: To evaluate the effectiveness and influence of micro-osteoperforation on the rate of canine retraction and patient pain perception. Method: In this prospective split-mouth clinical trial, forty adult patients in the age range of 15-25 years (18 men and 22 women) requiring bilateral first premolar extraction and upper canine retraction involving maximum anchorage, were enrolled. Two groups of 20 patients each (Group-I and Group-II) were randomly assigned and were further subdivided into subgroups A and B according to the allocation of a maxillary quadrant. Group-I A and Group-II A were the experimental quadrants in which 3 micro-osteoperforations (MOPs) and 2 MOPs were performed, respectively, and Group-I B and Group-II B served as control quadrants. With the help of a mini-screw (1.6 mm diameter, 8 mm length), MOPs were created distal to the maxillary canine following which, canine retraction continued for three months. The collection of data was obtained from monthly plaster models. The primary outcomes were the rate of canine retraction per month and the total distance moved by the canines. The secondary outcomes were to assess patient pain following the MOP procedure. Result: A significant increase in the rate of tooth movement was seen in Group-I A, whereas, in Group II, there was no significant difference in the movement rate between the subgroups A and B. In addition, Group-I A showed a significant increase in the rate of canine retraction compared to Group-II A. The patients did not report significant pain, nor discomfort nor other complications during or after the procedure. Conclusion: Micro-osteoperforation appears to be an effective, comfortable, and safe procedure to accelerate tooth movement and significantly reduce the duration of orthodontic treatment.","PeriodicalId":48559,"journal":{"name":"Australasian Orthodontic Journal","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49493398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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