European journal of orthodontics最新文献

{"title":"Comprehensive clinical evaluation of indirect and direct bonding techniques in orthodontic treatment: a single-centre, open-label, quasi-randomized controlled clinical trial.","authors":"Kana Kono, Takashi Murakami, Saori Tanizaki, Noriaki Kawanabe, Atsuro Fujisawa, Masahiro Nakamura, Mitsuhiro Hoshijima, Takashi Izawa, Hiroshi Kamioka","doi":"10.1093/ejo/cjae036","DOIUrl":"10.1093/ejo/cjae036","url":null,"abstract":"<p><strong>Background: </strong>Few prospective investigations have compared direct and indirect techniques through comprehensive and detailed clinical evaluations, considering the impact of all factors.</p><p><strong>Objectives: </strong>This study aimed to compare and evaluate direct and indirect bonding methods at a single institution and to clarify the selection criteria for the bonding method.</p><p><strong>Materials and methods: </strong>This single-centre, quasi-randomized controlled clinical trial included 153 patients who required fixed orthodontic treatment. They were randomly divided into indirect and direct binding groups by the project lead (K.K.), who was blinded to all clinical data, and performed the allocation using medical record numbers. The chair time for bracket bonding, discomfort during bracket bonding, oral hygiene after bonding, number of bracket failures, number of intentional bracket reattachments, post-treatment occlusal index, and total treatment time were assessed. Outcomes were compared using a two-sample t-test or Mann-Whitney U test (P < .05).</p><p><strong>Results: </strong>Fifty-eight patients were included in the indirect bonding group (20 male, 38 female; mean age: 20.63 ± 5.69 years) and 66 (14 male, 52 female; mean age: 23.17 ± 8.83 years) in the direct bonding group. Compared to the direct bonding group, the indirect bonding group had shorter chair time (P < .001), a shorter total treatment period (P < .01), and a better final occlusal relationship (P < .001). The number of bracket detachments was higher (P < .001) in the indirect bonding group, but the number of intentional reattachments was lower (P < .001).</p><p><strong>Conclusion: </strong>Indirect bonding may improve the efficiency of orthodontic treatment.</p><p><strong>Harms: </strong>No harm was observed during the study.</p><p><strong>Trial registration number: </strong>This trial was approved by the Ethics Review Committee of Okayama University (approval number: d10001), UMIN registration number 000022182.</p>","PeriodicalId":11989,"journal":{"name":"European journal of orthodontics","volume":"46 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11450403/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142371350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Colourimetric changes experienced in three types of aligners according to the L'Eclairage Commission.","authors":"Teresa Domingo-Jiménez, María José González-Olmo, Carolina Nieto-Moraleda, María Pérez-Chicharro, Martin Romero-Maroto","doi":"10.1093/ejo/cjae047","DOIUrl":"https://doi.org/10.1093/ejo/cjae047","url":null,"abstract":"<p><strong>Objective: </strong>The objective was to compare the colourimetric increment (L*, a*, and b*) of three types of aligners after subjecting them to two stains and to evaluate the initial colourimetric characteristics.</p><p><strong>Methods: </strong>A total of 120 aligners (40 Invisalign®, 40 Spark®, and 40 QuickSmile®) were immersed in two different agents (distilled water and coffee). Measurements were taken using a spectrophotometer before immersion (T0), after 12 hours (T1), and after 7 days (T2). Colour changes (ΔE*) were evaluated based on the International Commission of L'Eclairage, and subsequently converted to National Bureau of Standards units. The measurement was repeated three times. The intraclass correlation coefficient, one-way ANOVA, Tukey's post hoc test, and the independent t test were used (P ≤ .05).</p><p><strong>Results: </strong>At T0, significant differences were observed for a*: Invisalign® and Spark® tended towards redder tones, whereas Quicksmile® leaned towards greener shades. Regarding b*, all aligners tended towards yellow, with Invisalign® exhibiting the least tendency. No differences were found in water between T1 and T0. In the intervals, T2-T1 and T2-T0, Spark® showed more noticeable changes, whereas for Invisalign® and Quicksmile®, the change was only slight. In coffee, a shift to another colour was detected in T1-T0, T2-T1, and T2-T0 for Invisalign®, whereas for other brands, it was barely noticeable except for T2-T0 in Spark®, where the change was appreciable. In coffee, Invisalign® tended towards darker values (L*), turning redder (a*), and more yellow (b*) in T2-T1 and T2-T0.</p><p><strong>Conclusions: </strong>Invisalign® aligners initially presented a more reddish and less yellowish colour. In water, after 7 days, a noticeable colour change was found for Spark®. In coffee, a greater loss in brightness and a change to red and yellow were observed after 12 hours and 7 days for Invisalign®. This study highlights the importance of considering the impact of coffee on the colouring of aligners, especially with Invisalign®, which shows more noticeable changes.</p>","PeriodicalId":11989,"journal":{"name":"European journal of orthodontics","volume":"46 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142344129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cochrane systematic reviews in orthodontics: trends across updates.","authors":"Samuel Reeves, Kishan Patel, Krupali Mukeshkumar, Farhad B Naini","doi":"10.1093/ejo/cjae037","DOIUrl":"10.1093/ejo/cjae037","url":null,"abstract":"<p><strong>Background: </strong>Systematic reviews (SR) are regularly updated to reflect new evidence. However, updates are time-consuming and costly, and therefore should ideally be informed by new high-quality research. The purpose of this study is to assess trends in the quantity, quality, and recency of evidence intervening updates of orthodontic SR.</p><p><strong>Methods: </strong>SR relevant to orthodontics with at least two versions were identified from the Cochrane Database. The number, risk of bias, and year of publication of included trials were recorded for each update. Multivariate regression was conducted to assess factors affecting the risk of bias in trials, and the proportions within SR.</p><p><strong>Results: </strong>Forty-five SR inclusive of updates were included. The median number of trials was three per review and this increased across subsequent versions. Seven reviews (15.6%) included no evidence, and 40.74% of updates included no new evidence. Most of the primary research was considered high risk of bias (57.3%), although this was reduced marginally across updates. The proportion of studies considered low risk did not improve significantly between updates. There was no impact of publication year of clinical trials on the risk of bias (P = 0.349). However, average age of trials included in a systematic review significantly affected the proportion of low risk-of-bias studies (P = 0.039).</p><p><strong>Conclusions: </strong>SR are frequently updated without including new evidence. New evidence that is included is commonly deemed to be at high risk of bias. Targeted strategies to improve the efficient use of resources and improve research quality should be considered.</p>","PeriodicalId":11989,"journal":{"name":"European journal of orthodontics","volume":"46 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141975407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of early childhood non-nutritive sucking behavior including pacifiers on malocclusion: a randomized controlled trial.","authors":"Irma Arpalahti, Krista Hänninen, Mimmi Tolvanen, Juha Varrela, David P Rice","doi":"10.1093/ejo/cjae024","DOIUrl":"10.1093/ejo/cjae024","url":null,"abstract":"<p><strong>Background/rationale: </strong>Systematic reviews on the effects of pacifiers on occlusion have highlighted the need for quality RCTs.</p><p><strong>Trial design: </strong>Single region, three parallel-armed, prospective, randomized controlled trial.</p><p><strong>Objectives: </strong>To investigate the correlations between early childhood non-nutritive sucking habits and malocclusion. Specifically to test whether the use of a study pacifier has differing effects compared to other pacifiers and control, and whether the duration of pacifier use or digit sucking influence the occlusion.</p><p><strong>Participants: </strong>The subjects were firstborn children, born in 2008 in Vantaa, Finland.</p><p><strong>Intervention: </strong>One-third of participants were offered study pacifiers, free of charge, from birth up to 2 years of age. The history of the subjects' sucking habits, including pacifier use was screened in a questionnaire at the age of 2 years, and clinical examinations were performed at the age of 7 years. In addition, the subjects were divided into groups that were equally matched regarding their mother's level of education.</p><p><strong>Outcomes: </strong>Posterior crossbite, anterior crossbite, overjet, deep bite, open bite, and crowding.</p><p><strong>Randomization method: </strong>Three districts were randomly allocated to three study groups by drawing lots.</p><p><strong>Blinding: </strong>It was not possible to blind the clinicians or parents from the intervention. Blinding during data analysis was performed.</p><p><strong>Results: </strong>From the original cohort of 2715 children born in the town of Vantaa, 1911 were excluded and 353 were lost to follow-up. The remaining 451 children were divided into three groups according to the use of pacifiers. The prevalence of posterior crossbite at the age of 7 years was higher if a non-study pacifier had been used (P = .005) even when matched for the mother's level of education (P = .029). The prevalence of posterior crossbite was higher if the pacifier habit had continued for 12 months or more compared to 11 months or less, 7% and 1%, respectively, (P = .003). Digit sucking for 12 months or more was associated with crowding (P = .016). The prevalence of crossbite in the study pacifier group was less than in control pacifiers.</p><p><strong>Harms: </strong>No adverse harms were reported other than effects on the dentition.</p><p><strong>Conclusion: </strong>The use of pacifiers is associated with the posterior crossbite, especially if their use continues for a year or more. Parents/guardians should be advised to stop the use or reduce the use of pacifiers to a minimum after their child's first birthday.</p><p><strong>Trial registration: </strong>ClinicalTrials.gov NCT01854502.</p>","PeriodicalId":11989,"journal":{"name":"European journal of orthodontics","volume":"46 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11310778/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141906268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of vitamin D in orthodontic tooth movement-a systematic review and meta-analysis of randomized controlled trials in humans.","authors":"Akansha Tini, Saravana Kumar, Prema Arasu, Naveen Munusamy, Bhavana Balamurugan, Arul Antony","doi":"10.1093/ejo/cjae043","DOIUrl":"10.1093/ejo/cjae043","url":null,"abstract":"<p><strong>Background: </strong>Orchestration of tooth movement necessitates an equilibrium of bone synthesis and resorption. Vitamin D, through receptor-mediated actions, regulates the differentiation and maturation of osteoblasts and also induces osteoclastogenesis, maintaining this equilibrium.</p><p><strong>Objective: </strong>To analyze the impact of vitamin D in orthodontic tooth movement (OTM).</p><p><strong>Search method: </strong>A comprehensive exploration of the existing literature was conducted by systematic search through seven e-databases.</p><p><strong>Selection criteria: </strong>The criteria for inclusion were established using the PICO format: Orthodontic patients treated with fixed appliance (P), administered with vitamin D3 (I), collated with appropriate control groups (C), with tooth movement as the primary outcome and root resorption, anchorage loss, gingival crevicular fluid (GCF) volume, pain perception, and alveolar bone density as the secondary outcome (O).</p><p><strong>Data collection and analysis: </strong>After an extensive database search, 251 articles were obtained. Six articles were chosen following a stringent selection using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. The critical appraisal of randomized control trials (RCTs) involved the meticulous application of the RoB 2 tool. The quantitative synthesis incorporated a subset of six articles only.</p><p><strong>Results: </strong>In the meta-analysis investigating the influence of vitamin D on OTM, a notable disparity was evident between the vitamin D and control groups. Specifically, the standardized mean difference (SMD) stood at 1.43, accompanied by a 95% confidence interval (CI) ranging from 0.691 to 2.169 (P = .00154). For root resorption, the SMD was recorded at -0.51, with a 95% CI spanning from -3.051 to 2.031 (P = .11).</p><p><strong>Conclusions: </strong>The rate of tooth movement was enhanced by systemic and local administration of vitamin D. However, the inadequacy of available data is a hindrance in determining conclusively the impact of vitamin D on the extent of root resorption. The resolution of this quandary needs future human studies devoted toward investigating the influence of vitamin D in the realms of OTM and associated root resorption, thereby providing a definitive elucidation.</p><p><strong>Registration details: </strong>Prospero- CRD42023491783.</p>","PeriodicalId":11989,"journal":{"name":"European journal of orthodontics","volume":"46 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142119322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Poly-Ether-Ether-Ketone versus dead-soft coaxial bonded retainers: a randomized clinical trial. Part 2: periodontal health and microbial biofilm assessment.","authors":"Esraa Salman Jasim, Ammar Salim Kadhum","doi":"10.1093/ejo/cjae048","DOIUrl":"10.1093/ejo/cjae048","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Background: &lt;/strong&gt;Retainers have the potential to detrimentally impact periodontal health and contribute to tooth decay.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Objectives: &lt;/strong&gt;To investigate periodontal health and bacterial biofilm related to Poly-Ether-Ether-Ketone (PEEK) fixed retainers as compared to Dead-soft coaxial fixed retainer (DSC).&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Trial design: &lt;/strong&gt;A two-arm parallel groups single-centre randomized clinical trial.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;The trial included patients whose orthodontic treatment was completed and required retainers. Participants were randomly assigned into two retainer groups: PEEK retainers, prepared by computer-aided design and manufacturing into 0.8 mm wire form, and DSC retainers. The objectives included assessing periodontal health through plaque accumulation index (PI), bleeding on probing (BOP), periodontal pocket depth (PPD), gingival index (GI), calculus index (CI), and alveolar bone height (ABH) assessment. Biofilm assessment involved bacteriological screening of aerobic, facultative anaerobic, mutans streptococci, and lactobacilli. The periodontal indices and microbiological screening as well as were assessed at the debonding stage (T0), 1-month (T1), 3-month (T3), and 6-month (T6) after the commencement of the trial, except for the ABH, which was recorded using periapical radiograph at T0 and T6.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Blinding: &lt;/strong&gt;Single blinding of participants in addition to the bacteriological specialist.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;Initially, the trial enrolled 46 participants, aged between 12 and 28 years, and were randomly assigned to two groups, with 23 participants in each group. Subsequently, one participant withdrew from the trial, resulting in a total of 45 participants whose data were analysed. Assessment of the periodontal indices, excluding the CI (P = .480), revealed statistically but not clinically significant differences between groups after 6-month of retention (P = .016 of PI, P = .020 of BOP, P = .05 of PPD, and P = .01 of GI). There was slight plaque accumulation, normal PPD (approximately 1 mm), healthy to mild gingivitis with a GI of less than 1 and BOP was around 10%. Concerning the ABH, there was a noticeable reduction in its score after 6 months, particularly in the PEEK group, although the difference was not statistically significant (P = .102). Furthermore, the bacteriological viable count did not show any significant difference between the groups during the recall visits.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Harms: &lt;/strong&gt;There have been no reported negative consequences.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Limitations: &lt;/strong&gt;Blinding the assessor of periodontal indices was not feasible due to the nature of the intervention. The trial follow-up duration was limited.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusions: &lt;/strong&gt;Both the PEEK and DSC retainers have comparable impacts on periodontal health and bacterial accumulation and composition during the retention period.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Trial registration: &lt;/strong&gt;NCT055","PeriodicalId":11989,"journal":{"name":"European journal of orthodontics","volume":"46 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142307372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Can vacuum-formed retainers maintain arch dimensions and alignment compared to Hawley and fixed bonded retainers after treatment with fixed appliances? A systematic review and meta-analysis.","authors":"Umar Hussain, Sara Shahid Kunwar, Umair Wali Khan, Abdullah A Alnazeh, Muhammad Abdullah Kamran, Shamsul Alam, Anum Aziz, Muhammad Zaheen, Nikolaos Pandis, Alessandra Campobasso","doi":"10.1093/ejo/cjae040","DOIUrl":"10.1093/ejo/cjae040","url":null,"abstract":"<p><strong>Background: </strong>Different types of retention appliances have been proposed over the years, but their effectiveness in maintaining arch dimensions and alignment after orthodontic treatment is still unclear.</p><p><strong>Aim: </strong>To assess the efficacy of vacuum-formed retainers (VFRs) in preserving arch widths, arch length, and anterior alignment in maxillary and mandibular arches, compared to removable Hawley retainers (HRs) or fixed bonded retainers (FBRs). Search methods: unrestricted literature search of five major databases up to March 2024.</p><p><strong>Selection criteria: </strong>randomized/non-randomized clinical studies comparing VFRs to removable HRs or FBRs.</p><p><strong>Data collection and analysis: </strong>after duplicate study selection, data extraction, and risk of bias assessment, random effects meta-analyses of standardized mean differences and their 95% confidence intervals were performed, followed by meta-regressions, sensitivity analyses, and assessment of the quality of evidence with GRADE.</p><p><strong>Results: </strong>Twenty-two prospective studies (4 non-randomized and 18 randomized controlled trials) involving 1797 patients (mean age 17.01 years, 38.3% males) were included. No significant differences were found in the intercanine width, intermolar width, and arch length between VFRs and HRs, in both arches (P > 0.05). However, VFRs were statistically more effective than HRs in terms of Little's irregularity scores (LII) in the maxilla (eight studies; SMD = -0.42; 95% CI: -1.03 to -0.09; P = 0.02; I2 = 73.4%) but not in the mandible (P = 0.12). No significant differences were reported for all considered outcomes between VFRs and FBRs in in both arches (P > 0.05), except for lower LII, where VFRs were significantly less efficient (eight studies; SMD = 1.49; 95% CI = 0.26-2.7; P = 0.02; I2 = 93%). Follow-up times, risk of bias, and wire type (of FBRs) did not show statistically significant effects on outcome variables. Sensitivity analyses showed robustness of the findings for including non-randomized and postretention studies. The certainty in these estimates was from moderate to low due to the risk of bias and inconsistency.</p><p><strong>Conclusions: </strong>Low to moderate quality evidence indicates that VFRs are as effective as HRs in maintaining arch widths, length, and alignment. Low-quality evidence found similar efficacy between VFRs and FBRs, with FBRs being statistically more effective at maintaining lower arch alignment, but the difference was not clinically significant.</p><p><strong>Registration: </strong>PROSPERO registration (CRD42024518433).</p>","PeriodicalId":11989,"journal":{"name":"European journal of orthodontics","volume":"46 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142035555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adult Herbst-multibracket appliance treatment-how stable are the results very long term?","authors":"Niko Christian Bock,Julia von Bremen,Sabine Ruf","doi":"10.1093/ejo/cjae050","DOIUrl":"https://doi.org/10.1093/ejo/cjae050","url":null,"abstract":"AIMTo investigate the post-treatment (Tx) changes (≥ 15 years) in adult Class II patients treated with Herbst appliance and subsequently a multibracket appliance (MBA).SUBJECTS AND METHODSOf 51 potential patients 31 could be located and participated (19 II:1 and 12 II:2). At a mean age of 21.8 ± 7.3 years (T0), Herbst-MBA Tx had been started. The mean post-Tx observation period was 19.8 ± 3.6 years. Study models from before and after Tx (T1, mean age: 23.6 ± 7.4 years), after 3.0 ± 2.8 years of retention (T2, mean age: 26.8 ± 8.3 years) as well as after recall (T3, mean age: 43.4 ± 7.5 years) were evaluated using the PAR index as well as standard occlusal variables.RESULTSPre-Tx, the mean values of the 31 participants were: PAR score = 26.1 ± 9.6 points, Class II molar relationship (MR) = 0.7 ± 0.2 cusp widths (CW), overjet = 6.9 ± 2.3 mm and overbite = 4.8 ± 2.6 mm. After Tx, the mean PAR score was 5.3 ± 2.8. A Class I MR (0.0 ± 0.1 CW) was present while overjet and overbite had decreased to 2.1 ± 0.7 and 1.3 ± 0.8 mm, respectively. At recall (19.8 ± 3.6 years post-Tx), a slight PAR score increase (+ 3.1 points) had occurred (final value: 8.4 ± 3.7); this was mainly due to mild increases in overjet, overbite (final values: 3.3 ± 1.4 mm and 2.5 ± 1.7 mm) and changes in sagittal MR (0.2 ± 0.2 CW).LIMITATIONSThe sample size and the participation rate as well as the unavailability of a comparable control group can be considered as limitations. In addition, no long-term radiographic data could be obtained, and the retention protocol was not uniform. The majority of these issues, however, should be acceptable to due to the duration of the observation period and the uniqueness of the data.CONCLUSIONIn the present sample, Herbst-MBA Tx enabled Class II correction in adults with very good occlusal long-term stability.","PeriodicalId":11989,"journal":{"name":"European journal of orthodontics","volume":"18 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142263272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Risk of sleep-disordered breathing in orthodontic patients: comparison between children and adolescents","authors":"Patrícia Jost, Ana Lurdes Conte, Adriana de Oliveira Lira, Fernando Pugliese, Juan Martin Palomo, Beatriz Quevedo, Daniela Garib","doi":"10.1093/ejo/cjae049","DOIUrl":"https://doi.org/10.1093/ejo/cjae049","url":null,"abstract":"Objective The aim of this study was to assess the risk of sleep-disordered breathing (SDB) in orthodontic patients and to evaluate the influence of sex, age, and orthodontic treatment in a cohort of subjects using the Pediatric Sleep Questionnaire (PSQ) screening tool. Methods Parents of 245 patients aged 5–18 years (11.4 ± 3.3 years) were invited to participate in the study by answering the PSQ, which has 22 questions about snoring, sleepiness, and behavior. The frequency of high and low risk was calculated for the full sample. Multiple logistic regression was used to assess the association among sex, age, orthodontic treatment, rapid maxillary expansion (RME), and body mass index (BMI) with SDB. A significance level of 5% (P &amp;lt; .05) was adopted in all tests. Results A high risk of SDB was found in 34.3% of the sample. No sex and BMI difference was found for the risk of SDB. The high risk of SDB was significantly associated with younger ages (OR = 1.889, P = .047), pre-orthodontic treatment phase (OR = 3.754, P = .02), and RME (OR = 4.157, P = .001). Limitations Lack of ear, nose and throat-related medical history. Conclusion Children showed a 1.8 higher probability of having a high risk of SDB compared with adolescents. Patients before orthodontic treatment and patients submitted to RME showed a high risk of SDB.","PeriodicalId":11989,"journal":{"name":"European journal of orthodontics","volume":"94 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142263271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic and environmental contributions to the development of soft tissue facial profile: a twin study","authors":"Jamal Giri, Michelle Bockmann, Alan Brook, Angela Gurr, Toby Hughes","doi":"10.1093/ejo/cjae045","DOIUrl":"https://doi.org/10.1093/ejo/cjae045","url":null,"abstract":"Objectives This study aimed to determine the relative contribution of genetic and environmental factors in the phenotypic variation of the soft tissue facial profile during the mixed dentition and the permanent dentition stages. Methods In this retrospective cohort study, standardized facial profile photographs of 139 twin pairs (55 monozygotic and 84 dizygotic) were obtained from archival records at the Adelaide Dental School. Photographic analysis used 12 angular and 14 linear facial profile measurements from the mixed dentition (7–11 years) to the permanent dentition (12–17 years) stages. A genetic analysis was performed using a univariate structural equation model adhering to the normal assumptions of a twin model. Results In the mixed dentition stage, the additive genetic (A) and unique environment (E) model, AE model, was the most parsimonious in explaining the observed phenotypic variance for all 26 facial traits with the narrow-sense heritability estimates ranging between 0.38 and 0.79. In the permanent dentition, the AE model was the most parsimonious for 20 out of 26 traits, however, the variance of six traits, particularly those in the lower third of the face, was best explained by the shared environmental and unique environmental factors. Limitations This study exclusively included twins of European ancestry. Conclusions The soft tissue facial profile demonstrated dynamic genetic and environmental influences with a greater additive genetic influence during the mixed dentition and the early stages of the permanent dentition. However, there was evidence of increasing environmental influence in the lower third of the face during the early stages of the permanent dentition.","PeriodicalId":11989,"journal":{"name":"European journal of orthodontics","volume":"559 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142263273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}