Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie最新文献

{"title":"Semi-automated evaluation of the American Board of Orthodontics electronic cast-radiograph evaluation for assessing orthodontic treatment outcome : Reliability and agreement.","authors":"Gina Marie Georgi, Melika Khanloo, Cita Nottmeier, Alice von Laffert, Christian Hirsch, Linus Schwake, Till Koehne","doi":"10.1007/s00056-026-00660-y","DOIUrl":"https://doi.org/10.1007/s00056-026-00660-y","url":null,"abstract":"<p><strong>Aim: </strong>This study aimed to evaluate the reliability and agreement of a semi-automated evaluation of the electronic cast-radiograph evaluation (E-CRE) model score, as developed by the American Board of Orthodontics (ABO), compared to manual measurements.</p><p><strong>Methods: </strong>A total of 67 study models of patients who had completed orthodontic treatment were available, both as digital scans and as plaster models. Manual and digital evaluations followed the E‑CRE guidelines, assessing six criteria: alignment, marginal ridges, buccolingual inclination, occlusal relationships, overjet and root angulation, which was assessed visually on panoramic radiographs. The digital models were graded using a semi-automated software tool in OnyxCeph³™ Lab (version 3.5, Image Instruments GmbH, Chemnitz, Germany), while the plaster models were scored manually using the ABO measurement gauge. In addition, 20 models were scored manually and digitally by a second observer to assess interobserver reliability.</p><p><strong>Results: </strong>The interobserver reliability was excellent for digital measurements (intraclass correlation coefficient [ICC] 0.94-1.00) and higher compared to those for manual measurements (ICC 0.90-0.97). The reliability between digital and manual measurements was very high, with correlation coefficients ranging from 0.95 to 0.99. However, the digital evaluation produced slightly higher scores for alignment than the manual measurement (mean difference: +0.93).</p><p><strong>Conclusion: </strong>Semi-automated evaluation of ABO E‑CRE scores using OnyxCeph³™ is highly reliable and involves less interpersonal variance than manual grading. However, scores measured digitally were on average 0.79 point higher than those measured manually (scores below 30 are considered as acceptable treatment outcome).</p>","PeriodicalId":54776,"journal":{"name":"Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147846363","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}

{"title":"Contribution of skeletal and dentoalveolar vertical components in the hypodivergent facial growth pattern : An observational study.","authors":"Nicolas Nassar, Nayla Bassil-Nassif, Roland Kmeid, Pascale Salameh, Jospeh Bouserhal","doi":"10.1007/s00056-025-00582-1","DOIUrl":"10.1007/s00056-025-00582-1","url":null,"abstract":"<p><strong>Purpose: </strong>This observational study aimed to explore the association of various vertical skeletal and dentoalveolar components with the hypodivergence facial growth pattern in a Middle Eastern population.</p><p><strong>Methods: </strong>A total of 320 lateral cephalometric radiographs of Middle Eastern adults were selected and divided, based on their vertical facial growth pattern, equally into two groups: 1) hypodivergent (GoGn/SN ≤ 28°) and 2) normodivergent (28° <GoGn/SN < 36°). Each group comprised 160 subjects: 80 females and 80 males. A customized cephalometric analysis was performed using the software Viewbox 4 (version 4.0, Viewbox, dHAL Software, Kifissia, Greece). Landmark references were digitized on the cephalometric radiographs to measure vertical skeletal and dentoalveolar variables in the anterior and posterior maxillary and mandibular regions. Multiple regression analyses were performed with SPSS® statistics software (version 17.0, IBM, Chicago, IL, USA).</p><p><strong>Results: </strong>Hypodivergence was primarily determined by the skeletal vertical components, while dentoalveolar components were less important. The main contributors were posterior facial height (S-Go) with 50.0% for males and 46.6% for females, anterior facial height (N-Me) with 47.0% for males and 45.9% for females, as well as the ramus length (Co-Go), ranging from 29.9 to 32.5% for males and 24.3% for females. There was no significant gender-related dimorphism in the evaluated cephalometric components.</p><p><strong>Conclusion: </strong>The main contributing factors to hypodivergence were the skeletal mandibular components. Dentoalveolar heights contributed minimally to hypodivergence.</p>","PeriodicalId":54776,"journal":{"name":"Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie","volume":" ","pages":"219-229"},"PeriodicalIF":1.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143607169","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}

{"title":"Effects of malocclusion and orthodontic treatment on quality of life among orthodontic patients with craniofacial disorder compared to healthy controls : A cross-sectional study.","authors":"C Weismann, M Schmidt, J Effert, M C Schulz, C F Poets, B Koos, M Aretxabaleta","doi":"10.1007/s00056-024-00571-w","DOIUrl":"10.1007/s00056-024-00571-w","url":null,"abstract":"<p><strong>Purpose: </strong>Craniofacial disorders (CD) affect the Oral Health Impact Profile (OHIP). Therefore, this study evaluates the OHIP in orthodontic patients with cleft lip and/or palate or Robin sequence compared to healthy controls (C).</p><p><strong>Methods: </strong>A prospective, cross-sectional study was conducted. Oral health-related quality of life (OHRQoL) was assessed using the OHIP-14 questionnaire, with responses categorized into functional and psychological well-being items. In addition, the study considered the influence of crossbite, orthodontic appliance type, oral hygiene, and speech therapy. A high OHIP score represents a good quality of life. The Mann-Whitney test was used for nonparametric quantitative variables; statistical significance was set at p < 0.05.</p><p><strong>Results: </strong>The study included 119 participants (ages 7-21 years; 61 male, 58 female), divided into a CD group consisting of patients with cleft lip and/or palate or Robin sequence (n = 42) and a control group (C; n = 77; mean age 13.5 ± 5.2 and 14.3 ± 3.3 years, respectively). Both groups showed comparable OHIP-14 scores. The CD group reported significantly higher satisfaction regarding nutritional intake (p = 0.03), while the social and psychological dimensions were reduced (p = 0.04). Factors like crossbite, orthodontic appliance and speech therapy did not have a significant impact on OHIP. CD patients with good oral hygiene showed significantly superior self-reported psychological OHIP (p = 0.04).</p><p><strong>Conclusion: </strong>Patients with cleft lip and/or palate or with Robin sequence exhibited OHIP scores comparable to healthy individuals despite their underlying condition. Early guidance on dental care and tooth-friendly nutrition has the potential to improve OHRQoL. Additionally, providing supplemental psychological support during orthodontic treatment is advisable.</p>","PeriodicalId":54776,"journal":{"name":"Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie","volume":" ","pages":"239-252"},"PeriodicalIF":1.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13109231/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel approach to three-dimensional intermaxillary skeletal assessment : Correlation between the ANB angle and the bisector Wits appraisal.","authors":"M Serafin, B Baldini, O Rossi, G Perrotti, A Caprioglio","doi":"10.1007/s00056-025-00583-0","DOIUrl":"10.1007/s00056-025-00583-0","url":null,"abstract":"<p><strong>Purpose: </strong>The present study aimed to compare and correlate the ANB angle with the bisector Wits appraisal for a three-dimensional (3D) assessment of the maxillomandibular sagittal relationship using a cone beam computed tomography (CBCT) dataset.</p><p><strong>Methods: </strong>After outlier removal, 351 CBCT scans were chosen based on inclusion criteria (high quality, full-cranium field of view [FOV], slice thickness 150-300 μm) and analyzed using 3DSlicer software (Brigham and Women's Hospital, Boston, MA, USA, version 5.2.2). Eight anatomical landmarks were manually annotated, identified on axial views, and confirmed on the rendered volume image. The coordinates of each landmark were exported and the ANB (°) and bisector-Wits (mm) measurements were constructed. Dahlberg's D tested the intraobserver reliability and two-sample Kolmogorov-Smirnov test was executed to assess normality and to select the subsequent tests. Spearman's rank correlation coefficient (ρ) was utilized to correlate the angular (ANB) and linear (bisector-Wits) measurements, whereas the Siegel estimator for nonparametric linear regression was employed to establish norm values by the correlation equation. Significance was set at p < 0.05 with correlation coefficients exceeding ρ > 0.70 deemed clinically relevant.</p><p><strong>Results: </strong>High (ρ = 0.773) and statistically significant (p < 0.001) correlations between the ANB and bisector-Wits measurements were found. The obtained equation was the following: bisector-Wits = 1.06 × ANB - 6.32. Therefore, the obtained rounded norm range for bisector-Wits for skeletal class I sagittal relationship was determined to be from -6.3 to -2.1 mm (-4.2 ± 2.1 mm). Values less than -6.3 mm correspond to a class III, whereas greater than -2.1 mm correspond to a class II skeletal relationship.</p><p><strong>Conclusion: </strong>The study revealed a statistically significant correlation between the ANB and bisector-Wits. From a 3D perspective, the bisector-Wits represents a reliable parameter to assess maxilla-mandibular skeletal discrepancies instead of the ANB angle, also adhering to radioprotection principles by limiting the FOV to the maxillary complex only and potentially reducing the radiation exposure in CBCT-based cephalometry.</p>","PeriodicalId":54776,"journal":{"name":"Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie","volume":" ","pages":"280-287"},"PeriodicalIF":1.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13109169/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143756017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Can MRI be a potential substitute for CT in cephalometric analysis for radiation-free diagnoses?","authors":"Nalla Maheswara Rao, Navadeep Kaur, Shailendra Singh Rana, Abhishek Gupta, Sharvari Vichare, Anjana Rajagopalan, J Sivaraman, Kunal Pal, Bala Chakravarthy Neelapu","doi":"10.1007/s00056-025-00576-z","DOIUrl":"10.1007/s00056-025-00576-z","url":null,"abstract":"<p><strong>Objectives: </strong>The primary objective of this study was to investigate the feasibility of magnetic resonance imaging (MRI) usage over computed tomography (CT) to perform three-dimensional (3D) cephalometric analyses. The secondary objective is to find intra- and interobserver reliability of manual cephalometric landmarks identification in both CT and MRI scan data.</p><p><strong>Methods: </strong>Data from 40 patients were used in this study, with orthodontists manually identifying 37 landmarks on both CT and MRI scans. The interclass correlation coefficient (ICC) was calculated individually for both CT and MRI scan data to find intra- and interobserver reliability. In addition to ICC, paired t‑test and mean error were also calculated. Ground truth landmarks were calculated by considering the mean values of manually located 37 landmarks by observers for both CT and MRI. Thirty-seven cephalometric measurements (29 linear, 6 angular, and 2 ratios) were measured using 37 ground truth landmarks. Mean error (ME) between CT and MRI measurements was calculated and paired t‑test was performed to find the reliability of MRI usage over CT. Bland-Altman analysis was also performed on the measurements to check the agreement between CT and MRI.</p><p><strong>Results: </strong>The intra- and interobserver reliability was found to be reliable (ICC > 0.98, and P > 0.05) for all 37 landmarks in both CT and MRI. The ME for linear measurements was found to be 1.81 mm for hard tissue, 1.72 mm for soft tissue, and 1.53° for hard tissue angular measurements between CT and MRI. The paired t‑test performed on measurements between CT and MRI proved to be statistically insignificant (p > 0.05). The Bland-Altman analysis also showed strong agreement and low systemic bias between CT and MRI data.</p><p><strong>Conclusions: </strong>The strong ICC and P values shows the high reliability and reproducibility of manual landmark identification on both CT and MRI. The ME for the linear and angular measurements between CT and MRI was found to be well within acceptable limits. The results of paired t‑test and Bland-Altman analyses for cephalometric measurements between CT and MRI has shown strong evidence supporting the use of MRI as a substitute for CT.</p>","PeriodicalId":54776,"journal":{"name":"Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie","volume":" ","pages":"254-267"},"PeriodicalIF":1.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143588299","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}

{"title":"Mitteilungen der DGKFO.","authors":"Sema Safi","doi":"10.1007/s00056-026-00658-6","DOIUrl":"https://doi.org/10.1007/s00056-026-00658-6","url":null,"abstract":"","PeriodicalId":54776,"journal":{"name":"Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie","volume":"87 3","pages":"338-346"},"PeriodicalIF":1.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147789651","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}

{"title":"Comparison of conventional two-dimensional and digital three-dimensional imaging in orthodontics : A systematic review and meta-analysis.","authors":"Ana-Maria Haude, Thomas Lehmann, Christoph-Ludwig Hennig, Collin Jacobs","doi":"10.1007/s00056-024-00574-7","DOIUrl":"10.1007/s00056-024-00574-7","url":null,"abstract":"<p><strong>Objectives: </strong>Digital imaging techniques are important in dental diagnostics and therapy planning. Thus, the goal was to investigate the current state of the science regarding two- (2D) and three-dimensional (3D) imaging for clinical orthodontic issues via a systematic literature review and meta-analysis.</p><p><strong>Materials and methods: </strong>Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, the search was carried out using common electronic databases with the following terms: cbct AND opt AND dentistry, cbct AND opt AND orthodontics, cbct AND opt, three-dimensional imaging AND two-dimensional imaging AND orthodontics, cbct AND lateral cephalogram. A forest plot was utilized to depict the standardized mean differences (SMD) using a random-effects model to account for study heterogeneity. Heterogeneity assessment of the various trials was conducted using the I²-value and the Q‑test.</p><p><strong>Results: </strong>Of the 362 articles (1987-2023) identified, 41 articles met the inclusion criteria. The studies were categorized into four groups based on clinical background: mini-implant placement, root resorptions, impacted canines and cephalometric measurements. For mini-implant placement, 4 papers explored the benefits of 3D imaging. Root resorption detection was the focus of 4 studies, while 8 articles investigated 3D diagnostics for impacted canines. Overall, while 2D imaging suffices for evaluating mini-implant placement, CBCT images offer enhanced accuracy for investigating root resorptions and improved sensitivity in identifying impacted canines. Comparability of 2D and 3D imaging, with a focus on cephalometric measurements, was evaluated in 25 studies. Within this group, 10 papers were included in a meta-analysis, comparing SNA, SNB and ANB angle measurements. The random-effects model was used to compare the results of the SNA, SNB and ANB angles, which were presented in forest plots. No significant differences were found in the comparison of 2D and 3D imaging techniques for the SNA angle (p = 0.338; SMD = 0.39; 95% CI -0.40 to 1.18), the SNB angle (p = 0.650; SMD = 0.11; 95% CI -0.35 to 0.57), and the ANB angle (p = 0.666; SMD 0.89; 95% CI -0.32 to 0.50), whereby heterogeneity was high for all (I² = 90.27%, p < 0.001, I² = 76.81%, p = 0.004, and I² = 93.29%, p < 0.001, respectively).</p><p><strong>Conclusion: </strong>Based on the findings and the additional meta-analysis, 3D imaging is either equivalent or potentially superior to conventional 2D imaging for all subgroups. Further studies are required.</p>","PeriodicalId":54776,"journal":{"name":"Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie","volume":" ","pages":"288-305"},"PeriodicalIF":1.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143460833","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}

{"title":"Coefficient of efficiency and effectiveness of functional appliances in class II malocclusion treatment : A systematic review.","authors":"Keerthi Venkatesan, Vignesh Kailasam, Sridevi Padmanabhan, Nikhillesh Vaiid","doi":"10.1007/s00056-025-00585-y","DOIUrl":"10.1007/s00056-025-00585-y","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the coefficient of efficiency and effectiveness of removable and fixed functional appliances in class II malocclusion treatment.</p><p><strong>Data sources: </strong>Search of studies in five databases (Medline via PubMed, Cochrane library, LILACS, SCOPUS, and SciELO) that measured mandibular skeletal changes following functional therapy was conducted until 15 April 2024.</p><p><strong>Study selection: </strong>All study designs including randomized and controlled clinical trials (RCT), prospective and retrospective studies were included. Data were extracted independently by two authors from studies that fulfilled the inclusion criteria. Mandibular length changes of class II patients treated with functional appliances were collated for each retrieved study.</p><p><strong>Results: </strong>From 6796 potentially eligible studies, 90 were considered for this systematic review. Four were RCTs which were graded with the Cochrane risk of bias tool. Three were assessed as having low and one as having moderate risk of bias. The other 86 studies were graded with the modified Downs and Black tool which revealed that 47 showed low, 38 low/moderate, and 1 a moderate risk of bias. The most commonly assessed appliances were the Twin Block which was used on 783 patients, the Frankel appliance on 573, the Herbst appliance on 530, the Activator on 449, the Forsus appliance on 394, the MARA appliance on 202, and the Bionator on 133, for a total of 3064 treated patients.</p><p><strong>Conclusion: </strong>This systematic review provides conclusive evidence that the Twin Block appliance demonstrated the highest coefficient of efficiency among all the evaluated appliances (0.46 mm/month), while the Forsus fatigue resistant device (FFRD) had the highest coefficient of efficiency among the fixed functional appliances (0.41 mm/month).</p>","PeriodicalId":54776,"journal":{"name":"Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie","volume":" ","pages":"306-333"},"PeriodicalIF":1.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144065068","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}

{"title":"Three-dimensional localization of tooth germs without ionizing radiation : Proof-of-concept study using magnetic resonance imaging.","authors":"Andreas Detterbeck, Thomas Huber, Matthias Schmid","doi":"10.1007/s00056-024-00575-6","DOIUrl":"10.1007/s00056-024-00575-6","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to evaluate the feasibility and accuracy of using magnetic resonance imaging (MRI) for the three-dimensional (3D) localization of tooth germs. A MRI 3D dataset was compared to a cone-beam computed tomography (CBCT) dataset, which is the current gold standard method in the localization of tooth germs. In this proof-of-concept study, the potential of eliminating the exposure of patients to ionizing radiation for tooth germ localization was evaluated.</p><p><strong>Methods: </strong>A halved pig head (Sus scrofa domestica) was imaged with MRI and CBCT. The MRI data were manually segmented using InVesalius 3.1.1 (Centro de Tecnologia da Informação Renato Archer, Campinas, Brazil) to generate a 3D model, later processed in OnyxCeph3™ (Image Instruments GmbH, Chemnitz, Germany). The CBCT data were directly imported into OnyxCeph3™ for processing. Both datasets were combined with intraoral scans, and 12 raters took measurements to compare the ability to localize tooth germs with the help of the two modalities.</p><p><strong>Results: </strong>A total of 144 measurements were obtained (2 modalities × 6 measurement sections × 12 raters). The interrater reliability was high (intraclass correlation coefficients [ICCs] ≥ 0.99 for both modalities). The average differences between CBCT and MRI measurements ranged between -0.43 mm (Bonferroni-Holm-corrected 90% confidence interval [-0.69 mm, -0.16 mm]) and 0.48 mm [0.34 mm, 0.63 mm] and were equivalent with respect to a margin of -1 mm to 1 mm in all measurement sections (Bonferroni-Holm-corrected P < 0.01 in all sections).</p><p><strong>Conclusion: </strong>MRI demonstrates high potential as a nonionizing alternative to CBCT for 3D localization of impacted and displaced teeth, particularly in children and adolescents. The fluid-filled dental follicle provides excellent contrast in MRI, aiding precise localization. Future clinical studies with larger sample sizes are essential for validation.</p>","PeriodicalId":54776,"journal":{"name":"Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie","volume":" ","pages":"230-238"},"PeriodicalIF":1.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143366407","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}

{"title":"Is simultaneous placement of orthodontic mini-implants and skeletally anchored appliances advisable? : CBCT-based cadaver study comparing the accuracy of the digital workflow with methods requiring two visits.","authors":"Till Augustinowitz, Lucia Schiavon, Katharina Mücke, Beryl Schwarz-Herzke, Dieter Drescher, Giulia Brunello, Kathrin Becker","doi":"10.1007/s00056-025-00578-x","DOIUrl":"10.1007/s00056-025-00578-x","url":null,"abstract":"<p><strong>Purpose: </strong>For the fabrication of an orthodontic mini-implant (OMI)-borne appliance, the position of the inserted OMI can be detected by a silicone impression or an intraoral scan (IOS). In case of digital planning, it can be taken over from the planning and the appliance can be produced in advance. This study aimed to evaluate the accuracy of these three techniques and whether there is an association with the insertion angle.</p><p><strong>Methods: </strong>Two OMIs were digitally planned and placed in the anterior palate of 11 human cadavers with different insertion angles. Subsequently, the position of each OMI was detected by an IOS, a silicone impression, and a cone-beam computed tomography (CBCT) scan, whereby the CBCT scan was set as \"real position\". The measurements of accuracy were performed between the CBCT data as a reference and the preoperative digital planning, the IOS and the plaster model manufactured from the silicone impression.</p><p><strong>Results: </strong>The IOS was the most accurate in detecting the Top (mean deviation 0.14 mm) and the Apex (mean deviation 0.36 mm) of the OMIs. Significant linear deviations between the three modalities were registered for both Top (p < 0.001) and Apex (p = 0.010). The digital planning procedure achieved the lowest mean angular deviation of 3.7° and was significantly more accurate in this respect than the IOS (p < 0.001).</p><p><strong>Conclusion: </strong>All methods were subject to small, but clinically irrelevant deviations. Within the limitations of a cadaver study, all methods appear to be suitable for clinical use. However, the digital workflow could be advantageous, requiring only a single visit for OMI placement and simultaneous appliance fitting.</p>","PeriodicalId":54776,"journal":{"name":"Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie","volume":" ","pages":"269-278"},"PeriodicalIF":1.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13109175/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143544487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}