Korean Journal of Orthodontics最新文献

{"title":"Retention of orthodontic aligners with different gingival margin designs on three-dimensionally printed models representing varying degrees of marginal tissue recession.","authors":"Natália Angela Bortoli, Guilherme Picolli Bernd, Hélio Radke Bittencourt, Ana Maria Spohr, João Batista Blessmann Weber","doi":"10.4041/kjod25.269","DOIUrl":"https://doi.org/10.4041/kjod25.269","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the influence of three gingival margin aligner designs positioned on models with varying severities of marginal tissue recession.</p><p><strong>Methods: </strong>Nine models were obtained for each marginal tissue ressection class (Classes I, II, III, and IV). Control models had no anatomical alterations. For each model, three aligners of each gingival margin designs were fabricated (scalloped, scalloped extended, and straight). The aligners were placed on the models, and a hook was positioned in the buccal region at the level of the mandibular first molars. Pull-off tests were performed using a universal testing machine at a crosshead speed of 10 mm/min, and the maximum dislodgement force (N) was recorded. Each aligner was removed 10 times, and the average value was obtained.</p><p><strong>Results: </strong>According to the two-way ANOVA, the main effects of the gingival margin design factor (<i>P</i> < 0.001) and tissue recession factor (<i>P</i> < 0.001) were significant. However, the interaction term was not statistically significant (<i>P</i> = 0.105). According to Tukey's test, scalloped extended (52.3 N) and straight (47.9 N) margins demonstrated significantly greater retention than scalloped margin (33.1 N) (<i>P</i> < 0.05). The Class IV model (82.2 N) resulted in significantly greater retention (<i>P</i> < 0.05). The Class III model (54.4 N) exhibited the second highest retention value, which was significantly different from the other models. There was no significant difference in retention among Class I (25.6 N), Class II (33.2 N), and control (26.8 N).</p><p><strong>Conclusions: </strong>Aligner retention increased with increasing severity of marginal tissue recession. Aligners with scalloped margins provided less retention than those with scalloped-extended and straight margins.</p>","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147788665","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":"Development of Leading Enhancement Assistive Planning: A three-dimensional tooth classification system for orthodontic treatment with clear aligners.","authors":"HeeJeong Jasmine Lee, Reuben Axel Wee Ming How, Kok Beng Gan, Asma Ashari, Alizae Marny Fadzlin Syed Mohamed, Rohaya Megat Abdul Wahab","doi":"10.4041/kjod25.214","DOIUrl":"https://doi.org/10.4041/kjod25.214","url":null,"abstract":"<p><strong>Objective: </strong>To develop and validate the Leading Enhancement Assistive Planning (LEAP) system, a deep learning-based tool for automated malocclusion classification from three-dimensional (3D) intraoral scans, integrated into orthodontic computer-aided design (CAD) workflows to support clinical diagnosis and treatment planning.</p><p><strong>Methods: </strong>This retrospective study utilized 841 anonymized 3D intraoral scans in the standard tessellation language (STL) format, representing 8 malocclusion categories, labeled and validated by expert orthodontists. Preprocessing converted the STL meshes into standardized voxel grids, which served as inputs to a modified EfficientNet-based 3D convolutional neural network. The hierarchical classification logic distinguished primary and secondary malocclusions. Model performance was assessed using accuracy, precision, recall, and F1-score metrics on a held-out test set. Integration into orthodontic CAD software was demonstrated to provide real-time diagnostic feedback.</p><p><strong>Results: </strong>The LEAP system achieved robust classification performance, with 90.8% accuracy, 87.5% precision, 91.3% recall, and an F1 score of 89.2% across the eight malocclusion classes. Hierarchical logic enabled a clinically interpretable output for complex cases with overlapping conditions. The voxel-based pipeline supported resolutions of up to 256 × 256 × 256 with graphics processing unit acceleration for efficient inference. Readiness for integration into CAD platforms was demonstrated, providing automated malocclusion classification at the point of care.</p><p><strong>Conclusions: </strong>LEAP is an accurate, efficient, and scalable artificial intelligence-assisted system for classifying malocclusions using 3D dental scans. Its integration into orthodontic CAD software offers standardized, real-time diagnostic support, potentially improving workflow efficiency and consistency. The LEAP system may enhance diagnostic accuracy, reduce variability, and serve as a valuable decision-support tool in orthodontic practice.</p>","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147730461","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":"Effectiveness of acetaminophen in comparison with ibuprofen for pain control in orthodontic patients: A systematic review and meta-analysis.","authors":"Nycole Mariana Neves, Ádelin Olívia Lopes Joly Rodrigues, Giuliana Martina Bordin, Ingrid Gomes Perez Occhi-Alexandre, Juliana Schaia Rocha Orsi, Marilisa Carneiro Leão Gabardo, Francielle Topolski","doi":"10.4041/kjod25.273","DOIUrl":"https://doi.org/10.4041/kjod25.273","url":null,"abstract":"<p><strong>Objective: </strong>To compare the effectiveness of acetaminophen and ibuprofen for pain control in orthodontic patients.</p><p><strong>Methods: </strong>Using the PICO strategy, studies were included without restrictions on publication date or language. PubMed, EMBASE, Scopus, Virtual Health Library (VHL)/Latin American and Caribbean Health Sciences Literature (LILACS), Web of Science, and Cochrane Library databases were searched, along with gray literature, up to July 2025. The methodological quality of the studies was assessed using the Cochrane Risk of Bias 2 tool. A meta-analysis was conducted using R software. Subgroup and leave-one-out sensitivity analyses were conducted for moderate or high heterogeneity.</p><p><strong>Results: </strong>Of the 1,139 studies identified, 13 were included. The ages of the participants ranged from 9 to 30 years. Most studies (n = 7) were double-blinded. Tooth movement was induced by fixed appliances or separators, and two studies had a high risk of bias. Pain control with the two medications showed no significant differences at rest at 24 and 48 hours or during chewing at 6, 24, and 48 hours (<i>P</i> > 0.05). Heterogeneity was low, except for pain during chewing at 24 hours (I² = 68.7%; τ² = 1.24; <i>P</i> = 0.022): for this outcome, the \"before\" subgroup showed no heterogeneity, while the \"before/after\" subgroup showed high heterogeneity (I² = 84.3%; τ² = 3.38; <i>P</i> = 0.012). The leave-one-out analysis did not change the combined effect but indicated one study as a source of heterogeneity.</p><p><strong>Conclusions: </strong>Pain control during orthodontic tooth movement did not differ between the two medications.</p>","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147730559","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":"Efficacy of clear functional orthodontic appliances versus traditional functional appliances in the treatment of Class II malocclusion: A systematic review and meta-analysis.","authors":"Byung-Joo Sohn, Yoo-Kyung Han, Na Jin Kim, Jun-Beom Park, Sung-Seo Mo","doi":"10.4041/kjod25.197","DOIUrl":"10.4041/kjod25.197","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to conduct a comprehensive meta-analysis of the cephalometric and dental repositioning outcomes in patients with skeletal Class II malocclusion treated with either traditional functional appliances or clear aligners with mandibular advancement.</p><p><strong>Methods: </strong>A systematic literature search was performed using four major electronic databases: PubMed, Embase, the Cochrane Library, and Web of Science. Two independent reviewers selected studies based on the Population, Intervention, Comparison, Outcome, and Study design (PICOS) framework. Eligible studies were screened according to the predefined inclusion and exclusion criteria, and relevant data were extracted.</p><p><strong>Results: </strong>After a multi-stage screening and selection process, five studies were included. Skeletal and dental parameters were analyzed to compare the treatment outcomes. For the SNA angle, the standardized mean difference (SMD) was 0.54 (95% confidence interval [CI]: -0.28 to 1.36; <i>P</i> = 0.1943); for the SNB angle, the SMD was 0.29 (95% CI: -0.34 to 0.93; <i>P</i> = 0.3607); and for the ANB angle, the SMD was 0.33 (95% CI: -0.43 to 1.09; <i>P</i> = 0.3970). The two treatment modalities showed no significant difference in the change in maxillary incisor angulation. Similarly, changes in the mandibular incisor angle and mandibular length did not differ significantly between the two treatment modalities.</p><p><strong>Conclusions: </strong>Treatment outcomes showed no clinically significant differences between clear aligners with mandibular advancement and traditional functional appliances. This meta-analysis suggests that clear aligners with mandibular advancement may serve as alternatives for the treatment of skeletal Class II malocclusion, although high-quality randomized controlled trials are needed to confirm these preliminary findings.</p>","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":"56 2","pages":"167-180"},"PeriodicalIF":2.3,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13021320/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147516546","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":"Evaluation of changes in oral and dental health and deleterious oral habits after adenoidectomy or adenotonsillectomy in children.","authors":"Eda Arat Maden, Gizem Yoğurucu Değerli, Senem Kurt Dizdar, Suat Turgut","doi":"10.4041/kjod25.182","DOIUrl":"10.4041/kjod25.182","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to evaluate changes in oral health status and related oral habits in children undergoing adenoidectomy or adenotonsillectomy, focusing on dental indices and mouth breathing-associated symptoms.</p><p><strong>Methods: </strong>This prospective observational study included 52 children (mean age: 7.4 ± 2.1 years) who underwent adenoidectomy or adenotonsillectomy. Clinical evaluations included decayed, missing, and filled teeth for primary dentition/decayed, missing, and filled teeth for permanent dentition (dmft/DMFT) scores, plaque index (Silness and Löe), gingival index (Löe and Silness), and unstimulated salivary flow rate. Parents completed structured questionnaires assessing their children's medical and dental history, oral health-related behaviors, and symptoms. Oral health-related quality of life was evaluated using the Early Childhood Oral Health Impact Scale.</p><p><strong>Results: </strong>Statistically significant improvements were found in salivary flow rate (from 0.43 ± 0.21 mL/min to 0.75 ± 0.19 mL/min), plaque index (1.58 ± 0.48 to 1.06 ± 0.33), and gingival index (1.28 ± 0.55 to 0.70 ± 0.39) (all <i>P</i> = 0.001). Several mouth breathing-related symptoms, such as snoring, dry mouth, daytime sleepiness, and halitosis, also showed a significant postoperative reduction (<i>P</i> < 0.05).</p><p><strong>Conclusions: </strong>Adenoidectomy or adenotonsillectomy significantly improved periodontal parameters and reduced mouth breathing-associated symptoms in children. These findings highlight the importance of interdisciplinary management involving otolaryngologists, pediatric dentists, and orthodontists.</p>","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":"56 2","pages":"127-141"},"PeriodicalIF":2.3,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13021317/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147516483","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":"READER'S FORUM.","authors":"Jiayi Chen","doi":"10.4041/kjod56.0002RF","DOIUrl":"10.4041/kjod56.0002RF","url":null,"abstract":"","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":"56 2","pages":"89-91"},"PeriodicalIF":2.3,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13021315/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147516576","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":"Can wear time, material composition, and manufacturing processes affect microplastic release from clear orthodontic aligners? A multidisciplinary <i>in vitro</i> study.","authors":"Giulia Orilisi, Flavia Vitiello, Valentina Notarstefano, Chiara Santoni, Vincenzo Tosco, Sabina Saccomanno, Giuseppe Marzo, Elisabetta Giorgini, Giovanna Orsini, Vincenzo Quinzi","doi":"10.4041/kjod25.296","DOIUrl":"10.4041/kjod25.296","url":null,"abstract":"<p><strong>Objective: </strong>Plastics are widely used, including in medical applications. In dentistry, clear aligners (CAs) offer an alternative to fixed appliances, but their potential microplastics (MP) release raises health concerns. This study aims to investigate the detachment of MPs from CAs by analyzing the correlations between wearing time, manufacturing methods, and material composition.</p><p><strong>Methods: </strong>The following CAs were tested: Alleo (AL), F22 Aligner (F22), FlexiLigner (FL), Graphy (GP), Invisalign (INV), KeySplint (KS), Lineo (LIN), LuxCreo (LC), Spark (SP), and SureSmile (SS). One pair of CAs per group was immersed in artificial saliva, and the solution was stirred for 5 hours per day for 7 (T1) or 14 (T2) days to simulate mechanical friction. Saliva samples were subsequently vacuum-filtered through 1.6-μm pore-size membranes. Attenuated total reflectance-Fourier transform infrared spectroscopy was used to characterize the CA materials, and Raman microspectroscopy and scanning electron microscopy were used to assess the chemical composition, number, size, and shape of the MPs. The experiment was conducted in triplicate.</p><p><strong>Results: </strong>The release of MPs increased significantly from T1 to T2 (<i>P</i> < 0.05), especially those with a diameter < 5 μm. The mean size of the MPs did not significantly differ at either time point. MP release was associated with material composition at T1 and T2 (<i>P</i> < 0.0001). No significant correlation was observed with the manufacturing process, although GP, KS, and LC, which are three-dimensionally printed (3D-printed) CAs, released more uniform and spherical MPs.</p><p><strong>Conclusions: </strong>Replacing CAs after 7 days may help limit MP release, particularly smaller fragments; however, the clinical significance of this finding remains unclear and requires further in vivo investigation.</p>","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":"56 2","pages":"92-103"},"PeriodicalIF":2.3,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13021316/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147516551","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":"Comparison of the biomechanical properties of CAD/CAM individualized lingual retainers: An <i>in vitro</i> study.","authors":"Cita Nottmeier, Talisa Schwieder, Gina Marie Georgi, Carmen Schmid-Hermann, Bärbel Kahl-Nieke, Daniel Seiler, Christoph Bourauel, Till Koehne","doi":"10.4041/kjod25.114","DOIUrl":"10.4041/kjod25.114","url":null,"abstract":"<p><strong>Objective: </strong>This study examined the biomechanical properties of computer-aided design/computer-aided manufacturing (CAD/CAM) retainers made of titanium and nickel-titanium (NiTi).</p><p><strong>Methods: </strong>Four retainer types were tested: (1) twisted steel, (2) NiTi, (3) cut titanium, and (4) printed titanium. Longitudinal wires were manufactured (2-4) and subjected to a three-point bending test (3PBT). In a biomechanical bending test (BMT), retainers were designed from patient scans and applied to models in an Orthodontic Measurement and Simulation System, with the maxillary central incisor and mandibular central incisor loaded with deflections of ±0.2 mm and rotation of ±1°.</p><p><strong>Results: </strong>The 3PBT showed that NiTi wires exhibited a characteristic hysteresis loop, whereas the cut and printed titanium wires had different flow and yield strengths. The BMT forces during intrusive and extrusive movements were measured, and the findings revealed that in the maxilla, all CAD/CAM materials showed significant differences from the twisted steel, with NiTi differing from the cut and printed titanium. In the mandible, the forces were generally higher, with significant differences observed at 0.1-mm extrusion and 0.2-mm deflection. In addition, significant differences were observed in the mesial and distal deflections, particularly in the mandible, where the cut titanium generated the lowest forces. Twisted steel exhibited the lowest torque, whereas cut titanium exhibited the highest torque.</p><p><strong>Conclusions: </strong>CAD/CAM retainers differ significantly from conventional twisted steel retainers, with notable differences between NiTi and titanium retainers, especially in the maxilla. However, these differences may be negligible in the mandible due to the shorter interdental distance.</p>","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":"56 2","pages":"104-116"},"PeriodicalIF":2.3,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13021321/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147516476","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":"Dietary changes in patients with clear aligners compared with fixed orthodontic appliances during the early stages of orthodontic treatment: A systematic review.","authors":"Robert Iacobelli, Diana Tucker De Sanctis, Luay Jabr, Dimitris Michelogiannakis, Linda Sangalli","doi":"10.4041/kjod25.271","DOIUrl":"10.4041/kjod25.271","url":null,"abstract":"<p><strong>Objective: </strong>This systematic review evaluated dietary changes during the first 6 months of orthodontic treatment between multibracket fixed appliances and clear aligners.</p><p><strong>Methods: </strong>Five databases (PubMed, Web of Science, Cochrane's Database of Systematic Reviews, EMBASE, Scopus) were searched through January 2025 for longitudinal studies on healthy participants undergoing non-extractive orthodontic treatment with multibracket fixed appliances or clear aligners, assessing dietary changes. Data on diet change were extracted at baseline, 24 hours, 1 week, 2 weeks, 1-2 months, and 3-6 months, and descriptively compared with pain outcomes. Quality assessment was performed using Risk-of-Bias-2.0 and ROBINS-I; overall certainty of evidence was evaluated with GRADE.</p><p><strong>Results: </strong>The search retrieved 180 studies; 56 were screened, and 22 full-text articles were reviewed. Nine studies (671 participants, 58.9% females) were included. Despite no significant baseline differences between groups, 24 hours after appliance placement, all studies indicated significantly greater diet-related limitations in the multibracket group than in the aligner group, with differences of 0.1-0.9 points on a 0-10 scale. Trends persisted at 1 week (differences 0.7-1.8 points), 2 weeks (0.8-1.9 points), 1-2 months (0.1-2.0 points), and 3-6 months (0.8-3.0 points). Across timepoints, comparisons of pain intensity and dietary changes did not reveal consistent patterns.</p><p><strong>Conclusions: </strong>During the first 6 months, multibracket appliances may affect diet more negatively than clear aligners and this pattern does not seem to be explained by differences in pain. Given the low-to-moderate certainty of evidence and indirect diet assessment using items from broader oral health-related quality of life instruments, these results should be interpreted with caution.</p>","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":"56 2","pages":"142-166"},"PeriodicalIF":2.3,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13021319/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147516554","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":"Tricortical versus bicortical anchorage in a double-screw tandem skeletal expander and a single-screw maxillary anchorage rapid palatal expander: A finite element analysis.","authors":"Luca Brucculeri, Federica Pellitteri, Alfredo Salvatore Monterossi, Emanuele Paoletto, Giuliano Maino, Luca Lombardo","doi":"10.4041/kjod23.270","DOIUrl":"10.4041/kjod23.270","url":null,"abstract":"<p><strong>Objective: </strong>This study aims to employ finite element method (FEM) analysis to compare the differences between bicortical and tricortical anchorage of the posterior miniscrews in a single-screw miniscrew-assisted rapid palatal expansion (MARPE) and a double-screw tandem skeletal expander (TSE) under open and closed suture conditions.</p><p><strong>Methods: </strong>A cone beam computed tomography of the human skull of a 21.5-year-old female was utilized as a model for creating a FEM analysis. Simulations involved the insertion of four palatal miniscrews: two anterior ones with bicortical anchorage and two posterior ones (one with bicortical and another with tricortical anchorage), under open and closed suture conditions in a single-screw MARPE and double-screw TSE, resulting in a total of eight different simulation configurations. Evaluation parameters include total deformation (mm), Von Mises stress (MPa), and strain for each miniscrew body.</p><p><strong>Results: </strong>Tricortical anchorage of the posterior miniscrews provides greater anchorage, higher stress, and deformation on the anterior miniscrews in single-screw MARPE. Tricortical anchorage combined with a double-screw TSE promotes a more even distribution of force and stress on miniscrews under open suture conditions, leading to a parallel midpalatal suture opening along its entire length and height.</p><p><strong>Conclusions: </strong>FEM analysis revealed favorable midpalatal suture opening with equal force distribution and less stress when posterior tricortical anchorage in conjunction with double-screw TSE is applied.</p>","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":" ","pages":"117-126"},"PeriodicalIF":2.3,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13021318/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141762456","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}