Journal of Orthodontic Science最新文献

{"title":"Role of physical and dentofacial features in bullying among United Arab Emirates schoolchildren and its impact on school performance - A cross-sectional study.","authors":"Huda Abutayyem, Mohammad Khursheed Alam, Abedalrahman Shqaidef, Yahya Abdullah Alogaibi","doi":"10.4103/jos.jos_10_24","DOIUrl":"https://doi.org/10.4103/jos.jos_10_24","url":null,"abstract":"<p><strong>Background: </strong>Bullying has a lasting effect on young, vulnerable minds, especially among school-aged youngsters. With the help of this study, we intended to examine how physical and dentofacial characteristics contribute to bullying among kids and how it affects their academic performance.</p><p><strong>Methods: </strong>This retrospective cross-sectional study consisted of a self-reported anonymous, pretested questionnaire divided into three major domains, with due institutional ethical clearance being obtained before the study's commencement.</p><p><strong>Results: </strong>The study population consisted of 269 schoolchildren, with 49.8% being males and the majority (55.0%) residing in Ajman. Among the schoolchildren, 35.7% reported being victims of bullying. The majority of bully victims (27.1%) skipped school because of bullying. Additionally, 64.3% of the students had a nickname, primarily used by siblings, and approximately half of the bully victims disliked their nicknames. In terms of happiness, 45.0% of students were neither happy nor unhappy in classes, while 10.8% were very unhappy. Outside of school, 56.9% of participants were very happy, and only 1.1% were very unhappy. Most students (58.7%) did not believe that bullying harms their grades, while 19.7% believed it does. Furthermore, 71.7% of students did not experience bullying due to good grades or showing interest in schoolwork.</p><p><strong>Conclusion: </strong>Based on results, physical and dentofacial features in bullying among schoolchildren and its impact on school performance, sociodemographic patterns, and factors associated with bullying victimization highlight the need for targeted interventions and preventive strategies to address this issue. Thus, can create a safe and supportive school environment that promotes the well-being and academic success of all schoolchildren.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"13 ","pages":"50"},"PeriodicalIF":0.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11698250/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142931424","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":"Skeletal and dental effects of skeletally anchored forsus fatigue resistant devices during class II malocclusion treatment: A meta-analysis and systematic review.","authors":"Osama Eissa, Samira Diar-Bakirly, Humam Saltaji, Tarek El-Bialy","doi":"10.4103/jos.jos_13_24","DOIUrl":"https://doi.org/10.4103/jos.jos_13_24","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate and compare the skeletal and dental treatment effects of Class II malocclusion cases using skeletally anchored Forsus (miniscrew-anchored FRD or miniplate-anchored FRD), with conventional Forsus FRD.</p><p><strong>Materials and methods: </strong>Unrestricted electronic search of six databases and additional manual searches were performed up to July 2023. Randomized controlled trials having one treatment arm with skeletal anchored Forsus FRD in treatment of Class II malocclusion and another matched treatment group treated with conventional Forsus FRD were included in this review. Risk of bias assessment was performed using Cochrane's Risk of Bias Tool. No restrictions were set concerning treatment duration, or the cephalometric analysis used. Skeletal and dentoalveolar outcomes data were extracted by two authors independently.</p><p><strong>Results: </strong>Three studies using miniscrews as means of skeletal anchorage were evaluated and qualified for the final review and meta-analysis. Three other studies using miniplates were considered in the systematic review but were not qualified for a meta-analysis. The data gathered from the miniscrews anchored FRD papers included a total of 93 Class II patients (46 treated with miniscrew-anchored Forsus FRD, 47 treated with conventional Forsus FRD). The meta-analysis showed a statistically significant reduction in the SNA angle in favor of miniscrew-anchored Forsus FRD (mean difference: -0.26, CI: -0.50 to -0.02), a nonsignificant difference in the SNB (mean difference: 0.17, CI: -0.06 to 0.39), a statistically significant increase in the SN-MP angle in favor of miniscrew-anchored Forsus FRD (mean difference: 0.53, CI: 0.06-1.00)-a statistically significant reduction in the L1-MP angle in favor of miniscrew-anchored Forsus FRD (mean difference: -2.12, CI: -4.96 to -2.12). Data from miniplate-anchored FRD included 31 Class II patients treated with mini plate anchored FRD. Although meta-analysis was not applicable to these studies, lower incisor inclination was observed to be less.</p><p><strong>Conclusions: </strong>Based on the existing evidence, the use of skeletal anchorage could not enhance forward mandibular growth. However, miniscrew-anchored Forsus FRD could minimize mandibular incisor protrusion while miniplates could even retract the mandibular incisor position with a headgear effect on the maxilla.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"13 ","pages":"54"},"PeriodicalIF":0.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11698258/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142931590","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":"Assessment the thermoforming effect on the physical and mechanical properties of different thermoplastic orthodontic retainers: An <i>in vitro</i> study.","authors":"Doaa N Hamid, Mustafa M Al-Khatieeb","doi":"10.4103/jos.jos_61_24","DOIUrl":"https://doi.org/10.4103/jos.jos_61_24","url":null,"abstract":"<p><strong>Objectives: </strong>As patients are instructed to wear thermoplastic retainers for the rest of their lives, the durability of the materials is a critical factor in evaluating whether the expense is justified. This study examined the physical and mechanical properties of three different thermoplastic retainer materials before and after thermoforming (BT and AT).</p><p><strong>Materials and methods: </strong>Clear Advantage Series I, Clear Advantage Series II, and Leone types were used, with each material having a thickness of 1 mm. The materials' tensile force, hardness, and water absorption tests have been measured for 90 thermoformed and 90 non-thermoformed specimens (30 specimens from each material).</p><p><strong>Results: </strong>The tensile force, hardness, and water absorption values of all the materials differed significantly (<i>P</i> ≤ 0.05) BT. Additionally, the majority of the materials showed significant differences in water absorption, hardness, and tensile force (<i>P</i> ≤ 0.05) AT, except the Leone materials, and Clear Advantage Series I did not significantly differ in the case of hardness value. All studied materials showed an increase in hardness and water absorption AT (<i>P</i> ≤ 0.05). At the same time, all of the studied materials showed a significant decrease in tensile force after thermoforming.</p><p><strong>Conclusion: </strong>Thermoforming increases the material's water absorption while decreasing its stiffness, affecting its mechanical and physical properties. Clear Advantage Series II (PP) stood out with superior flexibility, wear resistance, and minimal water absorption compared to other materials, highlighting its durability and superiority.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"13 ","pages":"41"},"PeriodicalIF":0.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11698246/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932084","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":"Superior effect of mini-implant anchorage in the treatment of skeletal class II malocclusion.","authors":"Vo Thi Thuy Hong, Tran Thi Kim Lien, Pham Anh Tuan, Hoang Viet","doi":"10.4103/jos.jos_35_24","DOIUrl":"https://doi.org/10.4103/jos.jos_35_24","url":null,"abstract":"<p><strong>Objectives: </strong>To evaluate the effectiveness of mini-implant (MI) anchorage versus conventional anchorage for the treatment of skeletal class II malocclusion.</p><p><strong>Materials and methods: </strong>The study was conducted on 64 patients with skeletal class II malocclusion. The patients were divided into two groups: 1) 32 patients underwent conventional anchorage, and 2) 32 patients underwent MI anchorage. Cephalometric radiographs were taken pre-treatment, and the data were compared with post-treatment measurements.</p><p><strong>Results: </strong>The age and gender distribution between the conventional and MI anchorage groups was similar, and the differences were statistically significant. The SNA and SNB angles post-treatment were reduced compared to pre-treatment measurements in both groups. The MI anchorage demonstrated a superior subsidence effect, reducing the level of forward displacement of the first molars in the maxilla. The MI group also exhibited less extrusion of the molars compared to the conventional group. In skeletal class II cases, especially in patients with a high mandibular angle using MI anchorage helped prevent the mandible from rotating counterclockwise, thus improving aesthetics rather than worsening them after treatment. In 75% of the cases in the MI anchorage group, the outcome was assessed as \"greatly improved\" based on the PAR index.</p><p><strong>Conclusions: </strong>MI anchorage was more effective than conventional anchorage. It allows for greater posterior movement and intrusion of the maxillary incisors while maintaining or rotating the mandibular plane counterclockwise.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"13 ","pages":"44"},"PeriodicalIF":0.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11698243/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142931655","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":"The new additive era of orthodontics: 3D-printed aligners and shape memory polymers-the latest trend-and their environmental implications.","authors":"Amani Alkhamees","doi":"10.4103/jos.jos_211_23","DOIUrl":"https://doi.org/10.4103/jos.jos_211_23","url":null,"abstract":"<p><p>The era of printed aligners has just began in the orthodontic field. Orthodontists have become more interested in 3D-printed in-office aligners. Treatment due to this technology can become faster and more efficient. Advantages highlighted by newly introduced materials for manufacturing processes of 3D aligners present the possibility of overcoming limitations faced by thermoformed aligners, making them a potential replacement of thermoformed aligner. Advances in aligner material, especially shape memory polymers, have the potential to bring about radical transformations in the clinical applications of clear aligner therapy. Safety and cytotoxicity of printable resins along with its mechanical properties must be scientifically studied extensively before it is cleared for clinical use. In addition, with the increased use of aligners, awareness of the environmental burden of plastic waste should be emphasized. Attention should be directed into the development of recyclable materials for aligners along with establishing clear recycling guidelines and patient education programs on proper recycling methods. With the introduction of Graphy's clear biocompatible photocurable resin, which is equipped with a shape-memory function and is printed in an environmental friendly way by reducing carbon emissions. Direct 3D printing represents the future of clear aligner therapy, and more studies to test these new technologies and materials are required.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"13 ","pages":"55"},"PeriodicalIF":0.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11698253/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142931895","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":"Changes in the corrosion rate and microstructure of nickel titanium wire in pandan leaves extract.","authors":"Mutia A Nasution, Hilda F Lubis, Ingrid V Sipayung, Inri N Sitepu","doi":"10.4103/jos.jos_188_23","DOIUrl":"https://doi.org/10.4103/jos.jos_188_23","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed at determining the effect of pH changes on nickel titanium wire seen based on the corrosion rate and surface roughness of the wire after immersion in pandan leaves extract.</p><p><strong>Material and methods: </strong>The sample used nickel titanium wire of 0.016 inches diameter and 5 cm length and consists of five treatment groups: control group, 0.2% chlorhexidine, and 1000 ppm, 2000 ppm, and 4000 ppm pandan leaves extract. The solutions were put into an incubator for 7, 14, and 21 days at 37 °C and removed according to the sample immersion time. The corrosion rate was determined using the weight-loss method, and microstructure roughness was analyzed using a <i>scanning electron microscope</i>.</p><p><strong>Results: </strong><i>Kruskal-Wallis</i> test showed that there was a significant difference in corrosion rate of orthodontic wires of <i>nickel titanium</i> after control submersion, 0.2% chlorhexidine, and pandan leaves extract on 7, 14, and 21 days (<i>P</i> ≤ 0.05), and pandan leaves extract submersion shows that the surface structure is not as bad as artificial saliva and 0.2% chlorhexidine.</p><p><strong>Conclusions: </strong>Pandan leaves extract could inhibit the corrosion rate of nickel titanium orthodontic wire, which might be due to tannin content as an active antioxidant.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"13 ","pages":"53"},"PeriodicalIF":0.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11698254/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932087","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":"Orthodontic practice marketing: The orthodontist and laypeople's perspective.","authors":"Esraa S Jasim, Noor S M Alnuaimy, Mushriq Abid, Arkadiusz Dziedzic","doi":"10.4103/jos.jos_37_24","DOIUrl":"https://doi.org/10.4103/jos.jos_37_24","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to comparatively evaluate the perceptions of laypeople and orthodontists regarding the usefulness of orthodontic practice websites (OPWs) and Internet-based social media (ISM) and to assess whether the content, features, and design of these online information sources meet the expectations of laypeople compared to orthodontists.</p><p><strong>Material and methods: </strong>A cross-sectional, nationwide study was conducted using a pretested and validated electronic questionnaire administered separately to specialist orthodontists and laypeople. A total of 136 orthodontists and 1038 laypeople voluntarily participated. The willingness of specialists to adopt a modern approach to promoting OPWs is explored, and the essential information that should be included in ISM is identified.</p><p><strong>Results: </strong>Most orthodontists (52.9%) and laypeople (88.2%) preferred face-to-face communication over online content searching. Both groups consistently identified \"contact details\" and \"types of treatment\" as crucial information to be presented on OPWs. Facebook and Instagram were the most popular platforms among both orthodontists and laypeople.</p><p><strong>Conclusions: </strong>Both specialist orthodontists and laypeople should increasingly utilize OPWs due to their comprehensive benefits.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"13 ","pages":"47"},"PeriodicalIF":0.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11698251/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142931268","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":"Facialprofile determination using a novel face analyzer orthodontic mobile application.","authors":"Arya Brahmanta, Meralda Rossy Syahdinda, Hansen Kurniawan, Anand Marya, Deepak Chandrasekharan","doi":"10.4103/jos.jos_7_24","DOIUrl":"https://doi.org/10.4103/jos.jos_7_24","url":null,"abstract":"<p><strong>Objectives: </strong>To find out the difference, the type of facial profile, and facial asymmetry between manual methods and mobile application, which is named the face analyzer orthodontic application. Facial profiles can be determined from the side of the face, categorized into three types: straight, convex, and concave profiles. Facial asymmetry refers to the imbalance between facial components concerning size, shape, and opposing positions of planes, lines, or points.</p><p><strong>Materials and methods: </strong>The research design was a cross-sectional study design using extra oral patient photographs who were treated in Orthodontic Department of Nala Husada Dental Hospital, Surabaya. The technique used was simple random sampling. The number of samples obtained based on inclusion and exclusion criteria was 37 patients, ranged 9-15 years old. The facial profile and asymmetry were determined from extra oral photos before objectively analyzed and processed in face analyzer application by comparing with the manual technique. Wilcoxon test, used to determine the significance value of facial profiles and the facial asymmetry, was analyzed by McNemar's test.</p><p><strong>Results: </strong>Testing on two variables with two different treatment groups obtained <i>P</i> > 0.05. The Wilcoxon test result (<i>P</i> = 0.157) indicates there is no significant difference, and the McNemar test result (<i>P</i> = 0.375) indicates there was no significant difference in the two groups.</p><p><strong>Conclusions: </strong>The results of determining the facial profile and facial asymmetry showed no difference between manual and face analyzer orthodontic mobile applications.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"13 ","pages":"52"},"PeriodicalIF":0.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11698257/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932065","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":"Treatment of adult class II division 2 with deep bite using Forsus appliance and intrusion with TADs.","authors":"Amani Alkhamees","doi":"10.4103/jos.jos_214_23","DOIUrl":"https://doi.org/10.4103/jos.jos_214_23","url":null,"abstract":"<p><p>This case report details the treatment of a 23-year-old female patient with Class II division 2 malocclusion with a Class II skeletal base due to a retrognathic mandible. The condition was further complicated by a complete overbite, absence of tooth #36, and a gummy smile. The Forsus appliance has shown to be effective in correcting Class II malocclusion in adult patients, with significant improvements in bite and facial esthetics. The use of temporary anchorage devices for intrusion resulted in lower overbite and increased actual intrusion compared with alternative methods for intruding upper incisors.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"13 ","pages":"56"},"PeriodicalIF":0.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11698256/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142931920","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":"Effect of Forsus-assisted mandibular advancement on the adaptation of craniocervical posture - A retrospective study.","authors":"Preethi Rajamanickam, Remmiya Mary Varghese, Shreya Kishore","doi":"10.4103/jos.jos_121_23","DOIUrl":"https://doi.org/10.4103/jos.jos_121_23","url":null,"abstract":"<p><strong>Background and objective: </strong>Skeletal Class II malocclusion patients frequently exhibit an extended craniocervical position. The study's objective was to evaluate how the craniocervical posture has changed following skeletal class II correction using the Forsus fatigue-resistant device (FFRD).</p><p><strong>Methodology: </strong>A retrospective analysis was undertaken using the pre- and post-treatment records of 35 skeletal class II patients who used the FFRD to achieve class II correction. The metrics suggested by Solow and Rocabado were used to evaluate the cranial and cervical positions. Eleven angular parameters were evaluated to determine the relationship between the mandibular ramus and the skull as well as the upper and middle craniocervical positions. To compare the parameters before and after fixed functional therapy, a Wilcoxon signed rank test was used.</p><p><strong>Results: </strong>Significant differences were obtained in the parameters SNA, SNB, and ANB post-FFRD. Significant differences were also noted in NL/OPT, NSL/OPT, FH/CVT, FH/OPT, NSL/CVT, NL/CVT, ML/CVT, FH/RL, and oropharynx position.</p><p><strong>Conclusions: </strong>The upper and middle craniocervical posture altered significantly with the FFRD. Skeletal class II correction obtained with FFRD delivered the patients a more erect craniocervical posture.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"13 ","pages":"51"},"PeriodicalIF":0.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11698255/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932091","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}