To assess and compare the tumor necrosis factor-alpha (TNF-α) levels in saliva samples during the initial stages of orthodontic treatment with fixed orthodontic appliances (FAs) and clear aligners (CAs). This longitudinal study comprised 40 patients (22 males, 18 females, mean age 22 ± 7 years) who were categorized into two equal-sized groups. Group A comprised 20 patients treated with FA, and Group B comprised 20 patients treated with CA. Unstimulated saliva was collected before the intiation of treatment and then collected again after the placement of the FA/CA at 24 hrs, 7th day, and on the 21st day in both groups. TNF-α levels were determined through ELISA. The data were subjected to statistical analysis. For intragroup comparison of TNF-α at different time points, the Wilcoxon matched-pairs signed-rank test was used, and for intergroup comparison of FAs and CAs at different time points, the Mann–Whitney U test was used. TNF-α levels in the saliva increased significantly at 24 hours, followed by a decline on the 7th day and 21st day in both groups. Changes in TNF-α levels were significantly higher in the FA group than those in the CA group at different time points. This study showed that the salivary TNF-α levels increased significantly during the initial stages of FA and CA treatment at different time points. The mean salivary TNF-α level in both FA and CA groups increased significantly at 24 hours, followed by a decline on the 7th day and then on the 21st day. There was a significant difference between the FA and CA treatment, where the CAs showed a significantly low level of TNF-α in saliva at different intervals of time when compared to the FAs.
{"title":"Assessment of salivary tumor necrosis factor-alpha level in the initial stages of treatment with fixed appliances and clear aligners","authors":"Sarfraz Hassan, Mukul Shetty, Shravan Shetty, Roopak Naik","doi":"10.4103/jos.jos_81_23","DOIUrl":"https://doi.org/10.4103/jos.jos_81_23","url":null,"abstract":"\u0000 \u0000 To assess and compare the tumor necrosis factor-alpha (TNF-α) levels in saliva samples during the initial stages of orthodontic treatment with fixed orthodontic appliances (FAs) and clear aligners (CAs).\u0000 \u0000 \u0000 \u0000 This longitudinal study comprised 40 patients (22 males, 18 females, mean age 22 ± 7 years) who were categorized into two equal-sized groups. Group A comprised 20 patients treated with FA, and Group B comprised 20 patients treated with CA. Unstimulated saliva was collected before the intiation of treatment and then collected again after the placement of the FA/CA at 24 hrs, 7th day, and on the 21st day in both groups. TNF-α levels were determined through ELISA.\u0000 \u0000 \u0000 \u0000 The data were subjected to statistical analysis. For intragroup comparison of TNF-α at different time points, the Wilcoxon matched-pairs signed-rank test was used, and for intergroup comparison of FAs and CAs at different time points, the Mann–Whitney U test was used.\u0000 \u0000 \u0000 \u0000 TNF-α levels in the saliva increased significantly at 24 hours, followed by a decline on the 7th day and 21st day in both groups. Changes in TNF-α levels were significantly higher in the FA group than those in the CA group at different time points.\u0000 \u0000 \u0000 \u0000 This study showed that the salivary TNF-α levels increased significantly during the initial stages of FA and CA treatment at different time points. The mean salivary TNF-α level in both FA and CA groups increased significantly at 24 hours, followed by a decline on the 7th day and then on the 21st day. There was a significant difference between the FA and CA treatment, where the CAs showed a significantly low level of TNF-α in saliva at different intervals of time when compared to the FAs.\u0000","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"35 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141048217","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}
A. Jha, A. V. Mahuli, S. K. Verma, Surender Kumar, Om Prakash, Subia Ekram, Ankita Mathur, Vini Mehta
Enamel demineralization is a very common occurrence around bonded brackets in an orthodontic practice. Fluoride (FLR) applications have been used to prevent decalcification and further progression of white spot lesions. The purpose of this systematic review and meta-analysis was to systematically appraise available literature on the effectiveness of fluoride mouthrinse in the prevention of demineralization around fixed orthodontic appliances. A search was conducted for randomized controlled clinical trials among four electronic databases (MEDLINE, Google Scholar, PubMed, and Cochrane Review) through MeSH terms and keywords. Studies were excluded if random allocation was not conducted, or if they were animal or in vitro studies. About 146 articles were screened and 5 studies were selected for the present review. Only two studies were selected for MA due to variations in the measurement of outcomes among studies. This review concluded that rinsing with FLR in the course of the fixed orthodontic treatment lessens demineralization around the bracket. Using FLR mouthrinse to inhibit the formation of white spot lesions or dental caries in patients with multiple cavities or restoration can be considered in clinical practice.
{"title":"Effectiveness of fluoride mouthrinse in prevention of demineralization during fixed orthodontic treatment: A systematic review and meta-analysis","authors":"A. Jha, A. V. Mahuli, S. K. Verma, Surender Kumar, Om Prakash, Subia Ekram, Ankita Mathur, Vini Mehta","doi":"10.4103/jos.jos_116_23","DOIUrl":"https://doi.org/10.4103/jos.jos_116_23","url":null,"abstract":"Enamel demineralization is a very common occurrence around bonded brackets in an orthodontic practice. Fluoride (FLR) applications have been used to prevent decalcification and further progression of white spot lesions. The purpose of this systematic review and meta-analysis was to systematically appraise available literature on the effectiveness of fluoride mouthrinse in the prevention of demineralization around fixed orthodontic appliances. A search was conducted for randomized controlled clinical trials among four electronic databases (MEDLINE, Google Scholar, PubMed, and Cochrane Review) through MeSH terms and keywords. Studies were excluded if random allocation was not conducted, or if they were animal or in vitro studies. About 146 articles were screened and 5 studies were selected for the present review. Only two studies were selected for MA due to variations in the measurement of outcomes among studies. This review concluded that rinsing with FLR in the course of the fixed orthodontic treatment lessens demineralization around the bracket. Using FLR mouthrinse to inhibit the formation of white spot lesions or dental caries in patients with multiple cavities or restoration can be considered in clinical practice.","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"45 3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141025804","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}
In orthodontic treatment, the influence of posture on the bite plays a significant role in achieving stable results. With modern lifestyles, posture problems are becoming more common. The aim of this study was to comprehensively analyze the relationship between orthodontics, orthopedics, and the influence of posture on bite. The study reviewed statistics on the growth and popularity of orthodontic treatment methods and identified the importance of a comprehensive medical approach, especially for concomitant spine, posture, and flat feet problems. The following methods were used to achieve the objective: collection and analysis of statistical data on the popularity of orthodontic treatment; review of studies; clinical observations; and a comparative analysis of the effectiveness of different treatment methods. The study revealed a high degree of correlation between orthodontics, orthopedics, and the effect of posture on bite formation. A detailed analysis of the statistical data confirmed the increased interest in orthodontic treatment, including the use of modern technologies such as braces and eliners. This relevance is particularly noticeable in cases where there are concomitant problems with the spine, posture, and flat feet. One of the significant findings of the study was the confirmation of the urgent need for the convergence of orthodontic and orthopedic techniques to optimize the quality of care for patients suffering from combined posture and bite problems.
{"title":"The relationship between orthodontic and orthopaedic interventions in the influence of postural position on the bite","authors":"Vladislav Kiosse","doi":"10.4103/jos.jos_207_23","DOIUrl":"https://doi.org/10.4103/jos.jos_207_23","url":null,"abstract":"\u0000 \u0000 In orthodontic treatment, the influence of posture on the bite plays a significant role in achieving stable results. With modern lifestyles, posture problems are becoming more common. The aim of this study was to comprehensively analyze the relationship between orthodontics, orthopedics, and the influence of posture on bite. The study reviewed statistics on the growth and popularity of orthodontic treatment methods and identified the importance of a comprehensive medical approach, especially for concomitant spine, posture, and flat feet problems.\u0000 \u0000 \u0000 \u0000 The following methods were used to achieve the objective: collection and analysis of statistical data on the popularity of orthodontic treatment; review of studies; clinical observations; and a comparative analysis of the effectiveness of different treatment methods.\u0000 \u0000 \u0000 \u0000 The study revealed a high degree of correlation between orthodontics, orthopedics, and the effect of posture on bite formation. A detailed analysis of the statistical data confirmed the increased interest in orthodontic treatment, including the use of modern technologies such as braces and eliners. This relevance is particularly noticeable in cases where there are concomitant problems with the spine, posture, and flat feet.\u0000 \u0000 \u0000 \u0000 One of the significant findings of the study was the confirmation of the urgent need for the convergence of orthodontic and orthopedic techniques to optimize the quality of care for patients suffering from combined posture and bite problems.\u0000","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"12 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141044324","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}
V. Ravelo, G. Olate, Leonardo Brito, Roberto Sacco, Sergio Olate
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.
{"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}
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. 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. 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. 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.
{"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}
Snigdha Pattanaik, V. Veeraraghavan, A. Dasari, Santosh R. Patil, Saeed G. Alzahrani, Mohammad Fareed
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. 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. 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). 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.
{"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}
Yazeed Abdulaziz Al-Zahrani, R. Devanna, Yousef M. Althomali, Azzah O. Alhazmi, A. V. Holenarasipur, Ahmad Hatem Kariri
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. 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). 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. 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. 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.
{"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}
I. Ardani, Intan Vallentien Dwi Hariati, Alexander Patera Nugraha, I. Narmada, Achmad Syaifudin, Ida Bagus Agastya Perkasa, Guruh Putra Gunung, Shailesh Deshmukh, Rozita Hassan
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. To investigate the biomechanical performance of Ti and PEEK as miniscrew biomaterials employing FEA. 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. 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. 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.
只有微型螺钉[临时固定装置（TAD）]才能在正畸治疗期间提供绝对的固定。钛（Ti）是制作微型螺钉的基本材料，但它有许多缺点。聚芳醚醚酮（PEEK）在微型螺钉的生产中可能具有各种优势。有限元分析（FEA）是计算复杂结构的应力、应变和加载力的一种有效而可靠的方法，而且更省时省力。 利用有限元分析研究钛和聚醚醚酮作为微型螺钉生物材料的生物力学性能。 本研究采用有限元分析进行三维（3D）模拟。首先，使用钛基底材料和聚醚醚酮（尺寸为 1.4 毫米 × 6 毫米）进行三维微型螺钉建模，并进行三维关节间隙骨建模。通过模拟插入角度（30°、60° 和 90°）并施加 200 克的加载力进行了模拟。然后使用有限元分析确定了微型螺钉的生物力学性能。 随着插入角度的增大，骨上的张力减小，TADs 上的应力增大，骨变形减小。与由钛和 PEEK 制成的 TAD 相比，仅由 PEEK 制成的 TAD 比由钛制成的 TAD 造成的骨应力更大。据观察，上颌的变形大于下颌。 与钛相比，PEEK 对骨骼的应力更大，因此，正如有限元分析所证实的那样，PEEK 可作为制造 TAD 的替代生物材料。
{"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}
Sajal Gupta, Amit Kr. Khera, Pradeep Raghav, A. Wadhawan, Pankaj Wadhwa, Nupur Sharma
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. 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. 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. 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.
{"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}
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.
{"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}
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