Journal of Orthodontic Science最新文献

{"title":"Tooth movement with dental anchorage vs. skeletal anchorage: A systematic review of clinical trials","authors":"V. Ravelo, G. Olate, Leonardo Brito, Roberto Sacco, Sergio Olate","doi":"10.4103/jos.jos_4_23","DOIUrl":"https://doi.org/10.4103/jos.jos_4_23","url":null,"abstract":"The aim of this study is to compare the time and movement of orthodontic treatment using dental anchorage and skeletal anchorage in adolescent and adult patients with dental malocclusions. A systematic search was conducted in the Embase, PubMed, Lilacs, Cochrane, Trip, and Scopus databases up to October 2022. All the articles were selected using title and abstract, applying the inclusion and exclusion criteria. Disagreements were resolved with a third author. Finally, a full-text selection took place. The data extraction was conducted by two authors who independently evaluated the risk of bias. The methodological quality of the randomized clinical trials was evaluated using the Cochrane tool for the evaluation of the randomized clinical trials. Six articles were included in the data analysis. There were four clinical trials and two randomized clinical trials. A total of 176 patients was obtained with an age range between 14 and 46 years. Four studies showed significant differences when comparing the two anchorages in retraction or distalization of tooth groups, and two showed no differences when using dental and skeletal anchorage for vertical movements; only the articles with vertical movements showed relapse. We can conclude that skeletal anchorage generates precise and stable horizontal movements without overloading or changing the position of the molar. Future studies must incorporate three-dimensional technology for greater clinical accuracy.","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"18 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141030760","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}

{"title":"Efficacy of clear aligner therapy over conventional fixed appliances in controlling orthodontic movement: A systematic review","authors":"Abdulmajeed Almogbel, Ebrahim Alshawy, Abdulmageed Alhusainy","doi":"10.4103/jos.jos_176_23","DOIUrl":"https://doi.org/10.4103/jos.jos_176_23","url":null,"abstract":"\u0000 \u0000 The purpose of the current systematic review was to answer the clinical research question “Is Clear Aligner Therapy (CAT) effective in controlling the orthodontic movement?” by bringing together the most up-to-date information about the available evidence for CAT.\u0000 \u0000 \u0000 \u0000 On January 1, 2023, a search was conducted in PubMed, ERIC, Embase, and CINHAL for any research papers published in the previous 10 years that provided an overview of the PICO questions. Both the titles and abstracts of the selected studies were evaluated independently by two different authors, and if there was any disagreement between the two review authors, a third reviewer was brought in to settle it.\u0000 \u0000 \u0000 \u0000 Among included studies, three were retrospective non-randomized and two studies were prospective randomized clinical trials. Various authors reported better outcome for fixed orthodontic appliances than for clear aligner treatment (CAT) in relation to mandibular incisor proclination. The mean objective grading system score was better for braces (17) than for CAT (12) with no clinically significant difference, while staging had a significant impact on treatment efficacy.\u0000 \u0000 \u0000 \u0000 The results of this study suggest that clear aligners may be an effective alternative to traditional braces, but more research is needed to confirm these findings and determine the optimal size of future prospective studies evaluating this treatment.\u0000","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"1 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141023237","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}

{"title":"Sella turcica bridging as a potential diagnostic tool for dental anomalies: A retrospective cross-sectional study at university dental hospital","authors":"Yazeed Abdulaziz Al-Zahrani, R. Devanna, Yousef M. Althomali, Azzah O. Alhazmi, A. V. Holenarasipur, Ahmad Hatem Kariri","doi":"10.4103/jos.jos_198_23","DOIUrl":"https://doi.org/10.4103/jos.jos_198_23","url":null,"abstract":"\u0000 \u0000 A lateral cephalogram is an essential diagnostic record for an orthodontist. It is used for diagnosis and treatment planning. This can be a prediction tool as well for developing anomalies of the skeletal, dental, and soft tissues of the head and neck. The sella turcica (ST), being a central landmark for cephalometric assessment, has great importance in itself as a diagnostic parameter to predict certain dental problems related to its bridging.\u0000 \u0000 \u0000 \u0000 1. To assess and compare the shape, size, and bridging of ST in subjects of Taif with different skeletal classifications. 2. To find whether there is any association between dental anomalies and sella turcica bridging (STB).\u0000 \u0000 \u0000 \u0000 The study obtained ethical approval from the research ethics committee of Taif University with application no. 44-354 and with no. HAO-02-T-1 dated June 4, 2023. The study involved 87 study samples, divided as follows: a. Group 1: 49 control records. b. Group 2: 38 case records with STB.\u0000 \u0000 \u0000 \u0000 The results of our study were promising in relation to STB and the occurrence of dental anomalies in both the case and the control with the frequencies of occurrence being 46.94% and 36.84%, respectively. It was found that the percentage of distribution was more among class I malocclusions and least in class III. It is imperative that impaction (13.8%) is the most associated anomaly, followed by ectopic eruption (11.5%). Supernumerary teeth and gemination were the least associated with STB, and only 1% of the cases showed an association. Statistically significant associations were found for all types of dental anomalies as a result of distribution among cases and controls.\u0000 \u0000 \u0000 \u0000 Orthodontists commonly employ lateral cephalograms as a regular practice to aid in diagnosis and treatment planning. Furthermore, these cephalograms can serve as predictive tools for dental anomalies. Detecting skeletal abnormalities at an early stage can provide insight into the likelihood of future dental anomalies, enabling clinicians to implement preventive measures accordingly.\u0000","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"11 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141037928","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}

{"title":"Orthodontic treatment in adults: Challenges, outcomes, and factors affecting compliance and satisfaction","authors":"Snigdha Pattanaik, V. Veeraraghavan, A. Dasari, Santosh R. Patil, Saeed G. Alzahrani, Mohammad Fareed","doi":"10.4103/jos.jos_186_23","DOIUrl":"https://doi.org/10.4103/jos.jos_186_23","url":null,"abstract":"\u0000 \u0000 The demand for orthodontic treatment among adults has witnessed a substantial rise in recent years. This study aims to explore the complexities of adult orthodontics, focusing on challenges faced, treatment outcomes, and the influence of factors such as age, gender, and education on patient compliance and satisfaction.\u0000 \u0000 \u0000 \u0000 A multi-dimensional approach was employed, combining a review of clinical records with structured patient surveys. Descriptive statistics summarized demographic characteristics, treatment duration, and orthodontic problems addressed. Inferential statistics included Pearson correlation, Chi-squared tests, and analysis of variance to examine age compliance, gendersatisfaction, and education-orthodontic problem relationships. Qualitative analysis enriched findings, and statistical software facilitated data processing.\u0000 \u0000 \u0000 \u0000 The analysis revealed a statistically significant negative correlation between age and compliance (r = -0.28, P < 0.05), indicating that younger participants demonstrated higher compliance rates. Gender emerged as a significant factor influencing patient satisfaction (P = 0.024), with females reporting notably higher levels of satisfaction than males. Furthermore, participants with advanced education levels (Master’s/Ph.D.) were significantly more likely to have orthodontic issues related to malocclusion (P = 0.041).\u0000 \u0000 \u0000 \u0000 The study provides an insight into the multi-dimensional aspects of adult orthodontics, recognizing the challenges, compliance, and satisfaction levels. Tailored approaches considering age, gender, and education are essential. This research contributes to a deeper understanding of orthodontic treatment in adults and its potential implications for enhanced patient care.\u0000","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"28 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141031504","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}

{"title":"Comparison of biomechanical performance of titanium and polyaryletheretherketone miniscrews at different insertion angles: A finite element analysis","authors":"I. Ardani, Intan Vallentien Dwi Hariati, Alexander Patera Nugraha, I. Narmada, Achmad Syaifudin, Ida Bagus Agastya Perkasa, Guruh Putra Gunung, Shailesh Deshmukh, Rozita Hassan","doi":"10.4103/jos.jos_102_23","DOIUrl":"https://doi.org/10.4103/jos.jos_102_23","url":null,"abstract":"\u0000 \u0000 Only miniscrews [temporary anchoring devices, (TADs)] can provide absolute anchorage during orthodontic treatment. Titanium (Ti) is a fundamental material used in the production of miniscrews, but it has many disadvantages. Polyaryletheretherketone (PEEK) may have various benefits in the production of miniscrews. Finite element analysis (FEA) is a valid and reliable method for calculating stress, strain, and loading forces on complex structures and can be more time- and cost-efficient.\u0000 \u0000 \u0000 \u0000 To investigate the biomechanical performance of Ti and PEEK as miniscrew biomaterials employing FEA.\u0000 \u0000 \u0000 \u0000 This study is a 3-D (3D) simulation with FEA. First, 3D miniscrew modeling is done using Ti base material and PEEK (1.4 mm × 6 mm size), as well as 3D inter-radicular space bone modeling. The simulation was performed by modeling the insertion angles (30°, 60°, and 90°) and applying a 200-gram loading force. The biomechanical performance of the miniscrew was then determined using FEA.\u0000 \u0000 \u0000 \u0000 As the angle of insertion increases, the tension on the bone decreases, the stress on the TADs increases, and the bone deformation decreases. Compared to TADs made of Ti and PEEK, TADs made of PEEK alone cause more bone stress than TADs made of Ti. The distortion in the maxilla is observed to be larger than in the mandibular.\u0000 \u0000 \u0000 \u0000 PEEK has greater stress on the bones than Ti and may be prospected as an alternative biomaterial for TAD fabrication, as documented in the FEA.\u0000","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"12 19-20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141054529","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}

{"title":"Comparative evaluation of effectiveness of three versus four mini-implants for simultaneous intrusion and retraction of maxillary anterior teeth: A 3D FEM study","authors":"Sajal Gupta, Amit Kr. Khera, Pradeep Raghav, A. Wadhawan, Pankaj Wadhwa, Nupur Sharma","doi":"10.4103/jos.jos_57_23","DOIUrl":"https://doi.org/10.4103/jos.jos_57_23","url":null,"abstract":"\u0000 \u0000 To evaluate and compare the displacement pattern of maxillary anterior teeth in the sagittal and vertical planes and evaluate the stress distribution in pdl, bone, teeth of the maxillary anterior region, and around the mini-implants during simultaneous en-masse retraction and intrusion using two, three, and four mini-implants combinations.\u0000 \u0000 \u0000 \u0000 A three-dimensional FEM model of maxillary teeth and periodontal ligament housed in the alveolar bone with extracted first premolarswasgenerated. The models were broadly divided into three groups according to the number of mini-implants. Mini-implants were placed bilaterally between the second premolar and molar in group I, and along with bilateral implants, an additional mid-implant was placed between the central incisors as in group II, whereas in group III, anterior mini-implants were placed in between lateral incisors and canine bilaterally.\u0000 \u0000 \u0000 \u0000 The two mini-implant model showed the maximum amount of retraction in the sagittal plane followed by three and four mini-implant models. In the vertical plane, all six anterior teeth showed intrusion only in the four mini-implant model. The stress in cortical bone, cancellous bone, PDL, around the mini-implants, and in lateral incisor was maximum in the three mini-implant model, followed by four mini-implants with the least stress in the two mini-implant model.\u0000 \u0000 \u0000 \u0000 The four mini-implant model is better than the three and two mini-implants model as there is a more even distribution of force in the four mini-implants model as compared to the three mini-implants model.\u0000","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"34 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141044911","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}

{"title":"Keeping the teeth in line: Exploring the necessity of bonded retainers in orthodontics: A narrative review","authors":"E. S. Jasim, A. Kadhum, Istabrak Hasan","doi":"10.4103/jos.jos_159_23","DOIUrl":"https://doi.org/10.4103/jos.jos_159_23","url":null,"abstract":"In most recent studies, long-term retention after orthodontic treatment has been hypothesized that may be necessary to maintain the stability of the dentition and avoid post-treatment changes. The bonded fixed retainer is characterized by its clinical effectiveness, patient acceptance, and lack of patient complaints as compared with a removable retainer. An electronic database (such as PubMed, PubMed Central, Web of Science, Science Direct, Cochrane Library, Scopus, and ResearchGate) has been collected using specific keywords. Of the 152 articles, only randomized clinical trials that investigated different types of fixed retainers or compared fixed with removable retainers were illustrated in tables and included in this review. The present review has gone some way towards enhancing our understanding of the bonded fixed retainer, types, material, bonding methods, and how to improve its the success rate, besides the importance of new technology in fixed orthodontic retention.","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"20 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141048580","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}

{"title":"Influence of upper lip inclination on facial profile attractiveness: A perceptive analysis","authors":"Prateeksha Bora, Poonam Agrawal, D. Bagga, K. Priya, Neelam Singh, Rishibha Bhardwaj","doi":"10.4103/jos.jos_71_23","DOIUrl":"https://doi.org/10.4103/jos.jos_71_23","url":null,"abstract":"\u0000 \u0000 One of the major objectives of orthodontic treatment is to improve facial attractiveness. To orthodontists, this means that the nose, lips, and chin form an attractive outline when the faces are viewed from one side. The aim of the study is to evaluate the influence of lip inclination on perceived attractiveness using North Indian observer ratings on profile silhouettes.\u0000 \u0000 \u0000 \u0000 A profile photograph of an Indian male and female were converted to silhouettes for the study using computer software. The lip inclination of the idealized profile image was altered in two-degree increments to create a series of profiles with different upper lip inclination angles and rated by laypersons on a Likert scale.\u0000 \u0000 \u0000 \u0000 An angle of 79° was deemed to be neither attractive nor unattractive. Therefore, within the range of 65°–75°, the pictures were deemed acceptable. Angles above or below this range, up to 91° were perceived as slightly unattractive, and anything outside the range of 93°–105° was deemed very unattractive.\u0000 \u0000 \u0000 \u0000 The study is not generalizable to ethnic groups other than the North Indian population. Another limitation is the inability to visualize the entire face for a complete facial analysis.\u0000 \u0000 \u0000 \u0000 An upper lip inclination of 75°–85° in the male profile was associated with perceived attractiveness in all three groups whereas it was in the range of 65°–75° for a female profile. An upper lip inclination angle ranging from 95° to 105° was associated with unattractiveness in all three groups of observers and requires correctional intervention.\u0000","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"35 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139965472","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}

{"title":"Lower molar distalization using clear aligners: Is it effective? A systematic review","authors":"Horodynski Martina, A. De Stefano Adriana, Bottone Ernesto, Impellizzeri Alessandra, A. V. Roberto, Galluccio Gabriella","doi":"10.4103/jos.jos_174_23","DOIUrl":"https://doi.org/10.4103/jos.jos_174_23","url":null,"abstract":"Distalization is one of the most useful movements in orthodontic treatments. The aim of this systematic review is to analyze the effectiveness of lower molar distalization using clear aligner therapy (CAT). An electronic search was made from January 2012 to October 2022 using PubMed, Scopus, and LILACS databases without language limitations. This systematic review followed the Preferred Reporting Items for Systematic reviews and Meta-Analyses checklist. The search strategy resulted in 151 studies. A screening was performed to remove duplicates, and all the studies that did not respond to our questions for the title or abstract. Three studies underwent full text analysis. From the evaluation of the studies included in this review, it is possible to state that lower molar distalization is a clinical solution, but it is not a full bodily movement. CAT can provide more specifically a distal tipping movement. This is confirmed analyzing the discrepancy between expected movement and obtained movement. CAT can be considered a valid therapeutic option in patients with dental class III malocclusion, but it is obtained as a tipping movement instead of a body movement. Over-correction should be considered during the planning of the therapy.","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"65 39","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139966043","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}

{"title":"Displacement and stress distribution pattern during complete mandibular arch distalization using buccal shelf bone screws – A three-dimensional finite element study","authors":"Parul Priya, A. Jain, R. R. Prasad, Shresthaa Singh, Abhishek Kumar, Priyanka Kumari","doi":"10.4103/jos.jos_82_23","DOIUrl":"https://doi.org/10.4103/jos.jos_82_23","url":null,"abstract":"\u0000 \u0000 To evaluate and compare the distribution of stress and displacement of teeth during mandibular arch distalization using buccal shelf screws.\u0000 \u0000 \u0000 \u0000 Three three-dimensional finite element models of mandibular arch were constructed with third molars extracted. Models 1, 2, and 3 were constructed on the basis of the lever arm heights of 0 mm, 3 mm, and 6 mm, respectively, between the lateral incisor and canine. A buccal shelf screw was placed at the area in the second molar region with the initial point of insertion being inter-dental between the first and second molars and 2 mm below the mucogingival junction. MBT pre-adjusted brackets (slot size 0.022 × 0.028”) were placed over the clinical crown’s center with a 0.019 × 0.025” stainless-steel archwire on three models. A retraction force of 300 g was applied with buccal shelf screws and a lever arm bilaterally using nickel-titanium closed coil springs. The displacement of each tooth was calculated on X, Y, and Z axes, and the von Mises stress distribution was visualized using color-coded scales using ANSYS 12.1 software.\u0000 \u0000 \u0000 \u0000 The maximum von Mises stress in the cortical and cancellous bones was observed in model 1. The maximum von Mises stress in the buccal shelf screw and the cortical bone decreased as the height of the lever arm increased. Applying orthodontic forces at the level of 6 mm lever arm height resulted in greater biomechanical bodily movement in distalization of the mandibular molars compared to when the orthodontic forces were applied at the level of 0 mm lever arm height.\u0000 \u0000 \u0000 \u0000 Displacement of the entire arch may be dictated by a direct relationship between the center of resistance of the whole arch and the line of action generated between the buccal shelf screw and force application points at the archwire, which makes the total arch movement highly predictable.\u0000","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"83 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139966589","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}