Arturo Vela-Hernández, Rocío López-García, Verónica García-Sanz, Sara Camañes-Gonzalvo, Vanessa Paredes-Gallardo
{"title":"Influence of anterior buccolingual crown inclination on the esthetic perception of the frontal smile by dentists, orthodontists, and laypersons: the importance of connector parallelism.","authors":"Arturo Vela-Hernández, Rocío López-García, Verónica García-Sanz, Sara Camañes-Gonzalvo, Vanessa Paredes-Gallardo","doi":"10.2319/073124-620.1","DOIUrl":"https://doi.org/10.2319/073124-620.1","url":null,"abstract":"<p><strong>Objectives: </strong>To assess the perception of smile esthetics, variations in buccolingual crown inclination of the upper anterior teeth were introduced, disrupting the parallelism of these connectors from a frontal view.</p><p><strong>Materials and methods: </strong>In this descriptive cross-sectional study, a close-up smile image was modified using Adobe Photoshop to adjust the angulation of connectors, affecting either the six upper anterior teeth (C/C group) or the four upper anterior teeth (LI/LI group). Orthodontists (ORs), general dentists (GDs), and laypersons (LPs) then evaluated the attractiveness of the modified smiles.</p><p><strong>Results: </strong>A total of 79 LPs, 65 ORs, and 89 GDs participated in the evaluation. LPs gave the highest scores, followed by GDs and ORs, in both the C/C and LI/LI groups. The -6° deviated image was the least favored in the C/C group, while the -9° image received the lowest scores in the LI/LI group.</p><p><strong>Conclusions: </strong>In this study, we highlight the importance of proper buccolingual crown inclination and parallelism of connectors during treatment. The OR group showed the most critical assessment of smile esthetics related to buccolingual crown inclination variations. Lower scores were noted for greater deformations and negative inclinations in both the LI/LI and C/C groups.</p>","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143537616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Johnny Liaw, Shin-Huei Wang, Hou-Kun Chen, Yi-Jane Chen
{"title":"Active vertical control with skeletal anchorage for optimizing facial profile in a severe Class II high-angle protrusion case.","authors":"Johnny Liaw, Shin-Huei Wang, Hou-Kun Chen, Yi-Jane Chen","doi":"10.2319/041524-298.1","DOIUrl":"10.2319/041524-298.1","url":null,"abstract":"<p><p>This case report describes the nonsurgical management of a patient with a Class II skeletal pattern, retrognathic mandible, steep mandibular angle, maxillary vertical excess, and lip incompetence. The treatment approach involved orthodontic mechanics supported with skeletal anchorage to achieve maximal intrusion and retraction of the dentition. A novel elastic hanging rack appliance, supported by midpalatal miniscrews, was used. A maximal anchorage setup for active vertical control on both arches was illustrated. Significant improvement in the facial profile was achieved with optimal occlusion. Cephalometric analysis revealed successful incisor retraction and intrusion, as well as a forward rotation of the mandible. The treatment outcome illustrates the impact of active vertical control on orthodontic camouflage treatment for severe protrusion.</p>","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"227-239"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11842118/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142082952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Building bridges from research outcomes to clinical practice decisions.","authors":"David W Chambers, Carlos Flores-Mir","doi":"10.2319/Bridges_edited-11-23-24.1","DOIUrl":"10.2319/Bridges_edited-11-23-24.1","url":null,"abstract":"<p><p>Practitioners may face difficulties implementing research results into practice. Seven examples of common knowledge translation barriers for clinicians are presented, and suggestions are offered for building effective communication bridges. Changes in how research results are reported and interpreted across different practice contexts can improve orthodontic care. These include (a) attention to the expected benefit that includes estimates of both likely clinical value and probability of occurrence, (b) cost considerations, (c) generalizability across contexts that require interpretation adjustments, (d) measures of effect size in addition to measures of statistical significance, (e) determination of the largest relative sources of variance in the reported results, (f) estimating probabilities that lead to practice actions, and (g) conversion of research descriptions to values that impact practice decisions. Examples of improved communication relevant to clinicians are provided that can be used to build stronger bridges between orthodontic research and practice. Although advances in orthodontic research rigor have been noted, journal articles would benefit from more clinician-friendly descriptions of results and their impact.</p>","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"141-148"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11842110/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142901387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rodrigo Teixeira, Daniela Garib, João Gabriel Rando Poiani, Camila Massaro, Guilherme Adam Fraga, Sergio Henrique Kiemle Trindade, Luiz Fernando Manzoni Lourençone, Djessyca Miranda E Paulo, Carlos Flores-Mir
{"title":"Nasal septum deviation after rapid maxillary expansion in the early mixed dentition.","authors":"Rodrigo Teixeira, Daniela Garib, João Gabriel Rando Poiani, Camila Massaro, Guilherme Adam Fraga, Sergio Henrique Kiemle Trindade, Luiz Fernando Manzoni Lourençone, Djessyca Miranda E Paulo, Carlos Flores-Mir","doi":"10.2319/050124-344.1","DOIUrl":"10.2319/050124-344.1","url":null,"abstract":"<p><strong>Objectives: </strong>To evaluate nasal septum changes after rapid maxillary expansion (RME) during the mixed dentition and to verify the association between quantitative and qualitative assessments of nasal septum deviation (NSD) by ear, nose, and throat (ENT) specialists.</p><p><strong>Materials and methods: </strong>The sample comprised 24 patients (11 male, 13 female) with a mean age of 7.62 ± 0.92 years with maxillary transverse deficiencies. Cone-beam computed tomography (CBCT) images were obtained before and after RME. Three CBCT coronal sections passing through the maxillary first molars, 5 mm anterior and 5 mm posterior, were used for quantitative assessment. NSD was calculated using the ratio of nasal cavity height to nasal septum contour. Additionally, five ENT professionals evaluated NSD qualitatively using scores from 1 to 3 through CBCT sequential axial and coronal sections. Absent NSD was scored as zero. Interstage changes were assessed using Wilcoxon tests. Spearman correlation and linear regression were performed to evaluate the association between quantitative and qualitative analyses (P < .05).</p><p><strong>Results: </strong>No significant change was observed in the NSD ratio. In pre-expansion CBCT images, absence of NSD and scores 1, 2, and 3 for NSD were found for 45.8%, 41.7%, 12.5%, and 0%, respectively. In the qualitative assessment, no significant change in NSD was observed after expansion. A strong association was found between NSD ratio and ENT score (r = 0.750).</p><p><strong>Conclusions: </strong>In the mixed dentition, no significant change was observed in the NSD ratio. Qualitative analysis of NSD was associated with quantitative assessment of the ratio between nasal septum contour and nasal cavity height.</p>","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"166-172"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11842104/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143019352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hisham Mohammed, Ahmed Morsi, Khaled Wafaie, Ben K Daniel, Mauro Farella
{"title":"Patients' perspectives of the long-term impact of orthodontic treatment: a qualitative study.","authors":"Hisham Mohammed, Ahmed Morsi, Khaled Wafaie, Ben K Daniel, Mauro Farella","doi":"10.2319/031424-216.1","DOIUrl":"10.2319/031424-216.1","url":null,"abstract":"<p><strong>Objectives: </strong>To explore how orthodontic treatment affects different aspects of life, such as self-esteem, well-being, and social interactions and, additionally, to identify the long-term challenges that orthodontic patients experience after treatment.</p><p><strong>Materials and methods: </strong>This qualitative study involved in-depth semistructured face-to-face interviews. A purposive sampling strategy aimed to recruit a representative cohort of orthodontic patients who had their orthodontic treatment in adolescence and had their treatment concluded at least 5 years previously. Twenty-one patients (13 females and 8 males) were interviewed using a prepiloted topic guide. These interviews were transcribed and analyzed verbatim, using the general inductive method of data analysis.</p><p><strong>Results: </strong>The thematic analysis revealed four key themes and related subthemes: (1) self-confidence and interpersonal communication, (2) social and professional opportunities, (3) oral health and function, and (4) challenges. In-depth analysis revealed positive treatment outcomes regarding enhanced self-confidence, social interactions, and perceived improvement in oral health and function. It also highlighted ongoing challenges with retainers and dissatisfaction with relapse.</p><p><strong>Conclusions: </strong>Orthodontic treatment can significantly impact patient lives. Orthodontic patients described direct long-term positive effects on their social lives and well-being. However, it is equally important to remain mindful of the long-term challenges that may arise after treatment, especially with retainer choices and relapse, enabling proactive measures to mitigate their impact.</p>","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"205-211"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11842113/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142866904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluation of IL-8 and IL-6 levels in gingival crevicular fluid of individuals undergoing clear aligner therapy.","authors":"Dicle Altındal, Yasemin Tunca, Murat Tunca","doi":"10.2319/050224-347.1","DOIUrl":"10.2319/050224-347.1","url":null,"abstract":"<p><strong>Objectives: </strong>To compare short-term changes in the levels of interleukin-8 (IL-8) and interleukin-6 (IL-6) in the gingival crevicular fluid (GCF) of individuals undergoing orthodontic treatment with clear aligners.</p><p><strong>Materials and methods: </strong>This study included 15 individuals. Each patient used clear aligners designed not to cause tooth movement in the GCF sampled teeth, to be changed every 10 days. GCF samples were collected from teeth 16 (upper right first molar) and 31 (lower left central incisor) at baseline and after the procedure at the first hour, third, seventh, 14th, and 21st days. In addition, clinical periodontal parameters for the full mouth and the teeth from which GCF was collected were recorded initially and on the 21st day.</p><p><strong>Results: </strong>A statistically significant difference was observed between the levels of IL-8 before the procedure, on the third and seventh days, and on the 21st day (P < .01). The increase in IL-6 levels on the 14th and 21st days was significantly different compared to the levels before the procedure (P < .01). A positive correlation was detected between IL-8 and IL-6 levels at the first hour, a negative correlation on the third day, and a lower level of positive correlation on the seventh, 14th, and 21st days.</p><p><strong>Conclusions: </strong>Within 21 days, the levels of IL-8 and IL-6 significantly increased in individuals undergoing orthodontic treatment with clear aligners. Within the limits of this study, the clear aligner material may affect the levels of IL-8 and IL-6 in the GCF.</p>","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"212-218"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11842106/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Does orthognathic surgery affect tooth root length and volume: a retrospective cohort study.","authors":"Merve Ece Erdem, Celal Irgın","doi":"10.2319/052024-390.1","DOIUrl":"10.2319/052024-390.1","url":null,"abstract":"<p><strong>Objectives: </strong>To examine tooth root length and root volume in cone beam computed tomography (CBCT) images in patients with skeletal Class II and III anomalies who have undergone single-jaw (SJ) and double-jaw (DJ) orthognathic surgery, and to compare the changes between jaws with and without osteotomy.</p><p><strong>Materials and methods: </strong>This study was conducted on the archive records of a total of 60 adults: 36 women and 24 men with an average age of 21.1 ± 3.1 years, whose CBCT images were recorded just before orthognathic surgery and within 6-12 months after surgery. The sample was divided into four groups with 15 individuals in each: Class II SJ (mandibular advancement only), Class II DJ (maxillary advancement and impaction with mandibular advancement), Class III SJ (maxillary advancement and impaction), and Class III DJ (maxillary advancement and impaction with mandibular setback).</p><p><strong>Results: </strong>Within groups, statistically significant decreases in root length and root volume were found in the period between preorthognatic and postorthognathic surgery (P < .05). No statistically significant differences were found in comparisons between groups (P > .05).</p><p><strong>Conclusions: </strong>Regardless of the type of skeletal anomaly in the sagittal direction and the orthognathic surgery performed, a statistically significant but clinically insignificant decrease was found in tooth root length and root volume during the postorthognathic surgery period, both in jaws with and without osteotomy.</p>","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"188-198"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11842105/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142974222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jong-Hak Kim, Jun-Ho Moon, Jeffrey Roseth, Heeyeon Suh, Heesoo Oh, Shin-Jae Lee
{"title":"Craniofacial growth prediction models based on cephalometric landmarks in Korean and American children.","authors":"Jong-Hak Kim, Jun-Ho Moon, Jeffrey Roseth, Heeyeon Suh, Heesoo Oh, Shin-Jae Lee","doi":"10.2319/052324-399.1","DOIUrl":"10.2319/052324-399.1","url":null,"abstract":"<p><strong>Objectives: </strong>To compare differences in craniofacial growth prediction results for Korean and American children according to growth prediction models developed using Korean and American longitudinal growth data.</p><p><strong>Materials and methods: </strong>Growth prediction models based on cephalometric landmarks were built for each population using longitudinally taken lateral cephalograms of Korean children and American children of northern European origin. The sample sizes of the serial datasets were 679 and 1257 for Korean and American children, respectively. On each cephalogram, 78 cephalometric landmarks were identified. The prediction models were based on the partial least squares method with 160 input and 154 output variables. For each group, growth was predicted by applying the prediction models developed using data from the same and different populations. The growth prediction results were compared and analyzed.</p><p><strong>Results: </strong>The growth prediction results obtained with the prediction model developed using data from the same population were more accurate (P < .0001). The results distinctively visualized the discrepancies in the growth prediction results if different population types were not considered.</p><p><strong>Conclusions: </strong>Applying a growth prediction model generated using data from the same population may be desirable.</p>","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"219-226"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11842116/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142974215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparison of patient testimonials of orthognathic surgery on YouTube and TikTok.","authors":"Arianna Alvarado Garcia, Leah Rahman, Mathew J Gregoski, Ildeu Andrade","doi":"10.2319/071724-571.1","DOIUrl":"10.2319/071724-571.1","url":null,"abstract":"<p><strong>Objectives: </strong>To investigate and compare the educational value of the most popular testimonials between TikTok (TT) and YouTube (YT), and to classify the emotional response of viewers through sentiment analysis of video comments on both platforms involving orthodontic patients who will undergo orthognathic surgery.</p><p><strong>Materials and methods: </strong>Two distinct social media searches were conducted using specific search phrases on TT and YT. For each search phrase, 30 videos were gathered from each platform, and details such as number of views, likes, and comments were recorded for each video. Each video was then evaluated for completeness of information using an Information Completeness Score (ICS). A set of comments were collected for each video, and a Sentiment Analysis Score (SAS) was assigned using Azure Machine Learning.</p><p><strong>Results: </strong>TT had a higher number of views, likes, and comments. YT videos had a significantly higher ICS than TT (P < .0001). No statistically significant difference was found when evaluating SAS between the platforms or across phrase groups (P > .05), and no relationship was found between views, likes, comments, and SAS or ICS.</p><p><strong>Conclusions: </strong>YT had higher-quality information within patient testimonials posted due to higher ICS values found than TT. Patient testimonials were not determined to have a positive or negative influence on potential patient opinions in either platform. Orthodontists should leverage their own TT profiles to help direct patients toward meaningful YT testimonials through informative video links.</p>","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"199-204"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11842115/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143070578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}