The aim of the study was to compare the skeletal, dental, or soft-tissue outcomes of a one-phase camouflage treatment with pre-molar extraction versus a two-phase treatment with combined twin-block high-pull headgear followed by fixed orthodontic treatment in monozygotic twins. 12-year-old male monozygotic twins presented to the dental clinic with complaints about their anterior teeth. Cephalometric analysis of the patients revealed skeletal Class II malocclusion and a long facial type. Extraoral examination of the patients revealed incompetence of lip seal and a convex profile. In Patient 1, the use of a high pull headgear combined with a twin block to correct skeletal anteroposterior and vertical malocclusions with growth modification and then fixed orthodontic treatment was planned. Patient 2 did not comply with the treatment, complaining that the use of the device could cause esthetic problems and difficulties in use. Therefore, camouflage treatment with extraction of four pre-molars was planned as another treatment option for Class II patients in Patient 2. With the camouflage treatment, the patient continued to grow normally. The combined treatment with twin block and a high pull occipital headgear resulted in inhibition of maxillary growth and a reduction in the severity of the skeletal Class II malocclusion, but the mandibular changes were similar in both patients at the end of treatment. Despite the different treatment modalities, both twins achieved a Class I canine-molar relationship and ideal overjet and overbite. Patients can close their lips with improved soft-tissue profiles. The criteria for the choice of treatment depend entirely on the requirements of the patient.
该研究的目的是比较单卵双生孪生兄弟在拔除前磨牙后进行的单阶段伪装治疗与在固定正畸治疗后进行的双阻生高拉力头套联合治疗的两阶段治疗在骨骼、牙齿或软组织方面的效果。一对 12 岁的单卵双生男婴因前牙不适来到牙科诊所就诊。对患者进行的头颅测量分析显示，他们的骨骼错合畸形为二级，脸型较长。患者的口外检查显示唇部封闭不全，轮廓凸出。对于患者 1，计划使用高拉力头套结合双阻力块来矫正骨骼前后向和垂直向错颌畸形，同时进行生长改良，然后进行固定正畸治疗。患者 2 并未接受治疗，抱怨使用该装置会造成美观问题和使用困难。因此，计划对患者 2 进行拔除四颗前臼齿的伪装治疗，作为 II 类患者的另一种治疗方案。通过伪装治疗，患者继续正常生长。双阻滞和高拉枕式头套的联合治疗抑制了上颌骨的生长，减轻了骨骼Ⅱ类错颌畸形的严重程度，但在治疗结束时，两名患者的下颌骨变化相似。尽管治疗方式不同，但两对双胞胎的犬齿-臼齿关系都达到了 I 类，过咬合和过咬合都很理想。患者的嘴唇可以闭合，软组织外形得到改善。选择治疗方法的标准完全取决于患者的要求。
{"title":"Effects of two-phase treatment with functional appliances versus one-phase treatment with pre-molar extraction in Class II div 1 monozygotic twins: A case study","authors":"Rumeysa Bilici Geçer, Derya Dursun","doi":"10.25259/apos_267_2023","DOIUrl":"https://doi.org/10.25259/apos_267_2023","url":null,"abstract":"The aim of the study was to compare the skeletal, dental, or soft-tissue outcomes of a one-phase camouflage treatment with pre-molar extraction versus a two-phase treatment with combined twin-block high-pull headgear followed by fixed orthodontic treatment in monozygotic twins. 12-year-old male monozygotic twins presented to the dental clinic with complaints about their anterior teeth. Cephalometric analysis of the patients revealed skeletal Class II malocclusion and a long facial type. Extraoral examination of the patients revealed incompetence of lip seal and a convex profile. In Patient 1, the use of a high pull headgear combined with a twin block to correct skeletal anteroposterior and vertical malocclusions with growth modification and then fixed orthodontic treatment was planned. Patient 2 did not comply with the treatment, complaining that the use of the device could cause esthetic problems and difficulties in use. Therefore, camouflage treatment with extraction of four pre-molars was planned as another treatment option for Class II patients in Patient 2. With the camouflage treatment, the patient continued to grow normally. The combined treatment with twin block and a high pull occipital headgear resulted in inhibition of maxillary growth and a reduction in the severity of the skeletal Class II malocclusion, but the mandibular changes were similar in both patients at the end of treatment. Despite the different treatment modalities, both twins achieved a Class I canine-molar relationship and ideal overjet and overbite. Patients can close their lips with improved soft-tissue profiles. The criteria for the choice of treatment depend entirely on the requirements of the patient.","PeriodicalId":42593,"journal":{"name":"APOS Trends in Orthodontics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140717066","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}
Niranjana Ramasubbu, Shakeel Ahmed Valai Kasim, R. Thavarajah, K. Rengarajan
The study aimed to train an algorithm to predict facial and dental outcomes following orthodontic treatment using artificial intelligence (AI). In addition, the accuracy of the algorithm was evaluated by four distinct groups of evaluators. The algorithm was trained using pre-treatment and post-treatment frontal smiling and intraoral photographs of 50 bimaxillary patients who underwent all first bicuspid extraction and orthodontic treatment with fixed appliances. A questionnaire was created through Google form and it included 10 actual post-treatment and AI-predicted post-treatment images. The accuracy and acceptability of the AI-predicted outcomes were analyzed by four groups of 140 evaluators (35 orthodontists, 35 oral maxillofacial surgeons, 35 other specialty dentists, and 35 laypersons). The Style-based Generative Adversarial Network-2 algorithm used in this study proved effective in predicting post-treatment outcomes using pre-treatment frontal facial photographs of bimaxillary patients who underwent extraction of all first bicuspids as part of their treatment regimen. The responses from the four different groups of evaluators varied. Laypersons exhibited greater acceptance of the AI-predicted images, whereas oral maxillofacial surgeons showed the least agreement. The base of the nose and the chin demonstrated the most accurate predictions, while gingival visibility and the upper lip-to-teeth relationship exhibited the least prediction accuracy. The outcomes underscore the potential of the method, with a majority of evaluators finding predictions made by the AI algorithm to be generally reliable. Nonetheless, further research is warranted to address constraints such as image tonicity and the proportional accuracy of the predicted images.
{"title":"Applying artificial intelligence to predict the outcome of orthodontic treatment","authors":"Niranjana Ramasubbu, Shakeel Ahmed Valai Kasim, R. Thavarajah, K. Rengarajan","doi":"10.25259/apos_270_2023","DOIUrl":"https://doi.org/10.25259/apos_270_2023","url":null,"abstract":"\u0000\u0000The study aimed to train an algorithm to predict facial and dental outcomes following orthodontic treatment using artificial intelligence (AI). In addition, the accuracy of the algorithm was evaluated by four distinct groups of evaluators.\u0000\u0000\u0000\u0000The algorithm was trained using pre-treatment and post-treatment frontal smiling and intraoral photographs of 50 bimaxillary patients who underwent all first bicuspid extraction and orthodontic treatment with fixed appliances. A questionnaire was created through Google form and it included 10 actual post-treatment and AI-predicted post-treatment images. The accuracy and acceptability of the AI-predicted outcomes were analyzed by four groups of 140 evaluators (35 orthodontists, 35 oral maxillofacial surgeons, 35 other specialty dentists, and 35 laypersons).\u0000\u0000\u0000\u0000The Style-based Generative Adversarial Network-2 algorithm used in this study proved effective in predicting post-treatment outcomes using pre-treatment frontal facial photographs of bimaxillary patients who underwent extraction of all first bicuspids as part of their treatment regimen. The responses from the four different groups of evaluators varied. Laypersons exhibited greater acceptance of the AI-predicted images, whereas oral maxillofacial surgeons showed the least agreement. The base of the nose and the chin demonstrated the most accurate predictions, while gingival visibility and the upper lip-to-teeth relationship exhibited the least prediction accuracy.\u0000\u0000\u0000\u0000The outcomes underscore the potential of the method, with a majority of evaluators finding predictions made by the AI algorithm to be generally reliable. Nonetheless, further research is warranted to address constraints such as image tonicity and the proportional accuracy of the predicted images.\u0000","PeriodicalId":42593,"journal":{"name":"APOS Trends in Orthodontics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140728359","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}
Niki Arveda, Anna Colonna, G. Siciliani, L. Lombardo
This case report describes an orthodontic treatment combining aesthetic aligners with miniscrews and auxiliaries in an adult patient with Class II skeletal pattern and severe deep bite. A 38-year-old hypodivergent male patient with skeletal class II and severe deep bite presented for orthodontic treatment. The patient refused orthognathic surgery and conventional fixed multibracket treatment in favor of aligners in association with the use of miniscrews. The entire treatment was completed within nine months. Smile line and facial profile were improved, and post-treatment panoramic radiography showed good root parallelism, no sign of crestal bone height reduction, and no evidence of apical root resorption. The patient was satisfied with the aesthetic and functional outcomes. This case report illustrates that aligners associated with miniscrews and auxiliaries may be used to treat severe deep bite in certain cases.
本病例报告描述了一种结合美学矫治器、微型螺丝和辅助装置的正畸治疗方法，适用于一名骨骼形态为 II 类且咬合严重过深的成年患者。一名 38 岁的低分化男性患者，骨骼形态为 II 类，咬合严重，前来接受正畸治疗。患者拒绝接受正颌外科手术和传统的多托槽固定治疗，而是选择了使用微型螺丝的矫治器。整个治疗在九个月内完成。笑线和面部轮廓得到了改善，治疗后的全景X光片显示牙根平行度良好，没有牙槽骨高度降低的迹象，也没有根尖吸收的迹象。患者对美观和功能效果都很满意。本病例报告说明，在某些情况下，与微型螺丝和辅助器配合使用的矫治器可用于治疗严重的深咬合。
{"title":"Non-surgical treatment of a severe deep bite with aligners and miniscrew: A hybrid approach","authors":"Niki Arveda, Anna Colonna, G. Siciliani, L. Lombardo","doi":"10.25259/apos_187_2023","DOIUrl":"https://doi.org/10.25259/apos_187_2023","url":null,"abstract":"This case report describes an orthodontic treatment combining aesthetic aligners with miniscrews and auxiliaries in an adult patient with Class II skeletal pattern and severe deep bite. A 38-year-old hypodivergent male patient with skeletal class II and severe deep bite presented for orthodontic treatment. The patient refused orthognathic surgery and conventional fixed multibracket treatment in favor of aligners in association with the use of miniscrews. The entire treatment was completed within nine months. Smile line and facial profile were improved, and post-treatment panoramic radiography showed good root parallelism, no sign of crestal bone height reduction, and no evidence of apical root resorption. The patient was satisfied with the aesthetic and functional outcomes. This case report illustrates that aligners associated with miniscrews and auxiliaries may be used to treat severe deep bite in certain cases.","PeriodicalId":42593,"journal":{"name":"APOS Trends in Orthodontics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140730543","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}
Paolo Manzo, E. Paoletto, Federica Pellitteri, L. Brucculeri, Luca Lombardo
The objective of the study was to evaluate the accuracy of surgical guidance for the insertion of infrazygomatic (IFZ) miniscrews by means of a cone beam computed tomography (CBCT) evaluation. Nine patients (five men and four women, from 14.8 to 41.4 years of age) were recruited for the study. Rhinoceros software was used to digitally plan the infrazygomatic miniscrew insertion with the INFRABSTEER method (INFRA-zygomatic and Buccal Shelf method), superimposing intraoral scans and a CBCT obtained at T0. No orthodontic movement was performed, and six months later a second CBCT was done (T1). Rhinoceros software was used to superimpose T0 and T1 files. Mesio-distal, bucco-palatal, and vertical linear discrepancy in cap and tip and an angular discrepancy between the mini-screws was measured. To check the repeatability of the measurements, the intraclass coefficient (ICC) was calculated. The significance level considered is P < 0.05. The ICCs are all >0.85 and significantly different from 0 (P < 0.05), indicating excellent repeatability of measurements. The lowest mean linear distance was found to be the mesio-distal distance at the tip with 0.23 ± 0.241 mm. All linear distances produced an average distance of less than 0.5 mm, except for the bucco-palatal distance measured at the tip. The smallest angular measurement was obtained from the intersection of the axes of the miniscrews in the mesio-distal plane (1.58° ± 1.458°). The combination of a digitally planned and a template-guided surgical positioning procedure allows excellent control of infrazygomatic miniscrews insertion.
{"title":"Accuracy of the infrazygomatic orthodontic bone screws digital planning and surgical guided positioning: A observational study","authors":"Paolo Manzo, E. Paoletto, Federica Pellitteri, L. Brucculeri, Luca Lombardo","doi":"10.25259/apos_166_2023","DOIUrl":"https://doi.org/10.25259/apos_166_2023","url":null,"abstract":"\u0000\u0000The objective of the study was to evaluate the accuracy of surgical guidance for the insertion of infrazygomatic (IFZ) miniscrews by means of a cone beam computed tomography (CBCT) evaluation.\u0000\u0000\u0000\u0000Nine patients (five men and four women, from 14.8 to 41.4 years of age) were recruited for the study. Rhinoceros software was used to digitally plan the infrazygomatic miniscrew insertion with the INFRABSTEER method (INFRA-zygomatic and Buccal Shelf method), superimposing intraoral scans and a CBCT obtained at T0. No orthodontic movement was performed, and six months later a second CBCT was done (T1). Rhinoceros software was used to superimpose T0 and T1 files. Mesio-distal, bucco-palatal, and vertical linear discrepancy in cap and tip and an angular discrepancy between the mini-screws was measured. To check the repeatability of the measurements, the intraclass coefficient (ICC) was calculated. The significance level considered is P < 0.05. The ICCs are all >0.85 and significantly different from 0 (P < 0.05), indicating excellent repeatability of measurements.\u0000\u0000\u0000\u0000The lowest mean linear distance was found to be the mesio-distal distance at the tip with 0.23 ± 0.241 mm. All linear distances produced an average distance of less than 0.5 mm, except for the bucco-palatal distance measured at the tip. The smallest angular measurement was obtained from the intersection of the axes of the miniscrews in the mesio-distal plane (1.58° ± 1.458°).\u0000\u0000\u0000\u0000The combination of a digitally planned and a template-guided surgical positioning procedure allows excellent control of infrazygomatic miniscrews insertion.\u0000","PeriodicalId":42593,"journal":{"name":"APOS Trends in Orthodontics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140214604","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 aim of this study was to compare the quality and characteristics of information about clear aligners between YouTube and YouTube Short videos. YouTube video was searched using the keyword “aligner.” After ranking the results according to relevance, 100 of the first 157 YouTube videos and 100 of the first 140 YouTube Shorts were evaluated. Videos were classified into five groups as dentist/specialist, hospital/clinic/university, commercial, layperson, and other. The video information and quality index (VIQI) and DISCERN index were used to evaluate the quality and usefulness of the videos. Data were analyzed using International Business Machines(Ibm) Statistical Package for the Social Sciences (SPSS) statistics version 23. Level of significance was accepted as P < 0.05. Only 9% of YouTube videos, content quality was found to be good. As DISCERN scores decreased, a significant decrease was present in the number of views, comments, likes and dislikes, total video length, VIQI, viewer interaction, and viewing rate. The United States of America (USA) was the leading country by producing 54% of YouTube videos. However, India was the predominant source of YouTube Shorts videos, with 83%. Invisalign was the most frequently mentioned brand of aligner in both YouTube and YouTube Shorts videos. Orthodontists should be aware that the data available on the internet is incorrect or insufficient and should guide their patients correctly with additional data. Likewise, they should guide them on how to access upto-date and accurate data.
{"title":"Comparison of YouTube and YouTube Shorts videos about clear aligners","authors":"H. Yilanci, Baris Canbaz","doi":"10.25259/apos_208_2023","DOIUrl":"https://doi.org/10.25259/apos_208_2023","url":null,"abstract":"\u0000\u0000The aim of this study was to compare the quality and characteristics of information about clear aligners between YouTube and YouTube Short videos.\u0000\u0000\u0000\u0000YouTube video was searched using the keyword “aligner.” After ranking the results according to relevance, 100 of the first 157 YouTube videos and 100 of the first 140 YouTube Shorts were evaluated. Videos were classified into five groups as dentist/specialist, hospital/clinic/university, commercial, layperson, and other. The video information and quality index (VIQI) and DISCERN index were used to evaluate the quality and usefulness of the videos. Data were analyzed using International Business Machines(Ibm) Statistical Package for the Social Sciences (SPSS) statistics version 23. Level of significance was accepted as P < 0.05.\u0000\u0000\u0000\u0000Only 9% of YouTube videos, content quality was found to be good. As DISCERN scores decreased, a significant decrease was present in the number of views, comments, likes and dislikes, total video length, VIQI, viewer interaction, and viewing rate. The United States of America (USA) was the leading country by producing 54% of YouTube videos. However, India was the predominant source of YouTube Shorts videos, with 83%. Invisalign was the most frequently mentioned brand of aligner in both YouTube and YouTube Shorts videos.\u0000\u0000\u0000\u0000Orthodontists should be aware that the data available on the internet is incorrect or insufficient and should guide their patients correctly with additional data. Likewise, they should guide them on how to access upto-date and accurate data.\u0000","PeriodicalId":42593,"journal":{"name":"APOS Trends in Orthodontics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140240275","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}
F. Cremonini, L. Brucculeri, Filippo Pepe, M. Palone, Luca Lombardo
The study is aimed to examine the stress relaxation of 3d-printed aligners, Tera Hartz TC-85 (Graphy Inc. Seoul, South Korea) and Polyamide (Noxi, Sweden and Martina, Due Carrare, Padova, Italy), in comparison to thermoformed aligners, Zendura FLX (Bay Materials LLC, Fremont, California, USA) and Duran (SCHEU, Iserlohn, Germany). A stress-relaxation test was conducted using a motorized vertical testing bench, TVO-S (AstraLab, Mariano Comense, Italy), applying a constant and controlled pre-set load. Each sample was subjected to a deflection of 0.5 mm while being immersed in water for eight consecutive h at a constant temperature of 37°C. During this period, data were collected at intervals of 1 s. The same test was repeated twice (test 1 and test 2) on the same specimen, in order to simulate the intermittence of deflection force. For both Test 1 and Test 2, a total of 28,800 measurements were recorded for each aligner, with one measurement taken per second over a duration of 8 h/test. A statistically significant difference (P < 0.001) was found for all materials and at all time periods were considered. If the percentage of stress relaxation is considered, a significant difference among the four aligners was found as well. All materials displayed substantial stress decay during the 8-h period of constant load, although significant differences were observed among the various materials under investigation. The Noxi aligner demonstrated the highest force values in both tests, confirmed by low percentages of stress relaxation ranging from 23% to 32%.
{"title":"Comparison of stress relaxation properties between 3-dimensional printed and thermoformed orthodontic aligners: A pilot study of in vitro simulation of two consecutive 8-hours force application","authors":"F. Cremonini, L. Brucculeri, Filippo Pepe, M. Palone, Luca Lombardo","doi":"10.25259/apos_201_2023","DOIUrl":"https://doi.org/10.25259/apos_201_2023","url":null,"abstract":"\u0000\u0000The study is aimed to examine the stress relaxation of 3d-printed aligners, Tera Hartz TC-85 (Graphy Inc. Seoul, South Korea) and Polyamide (Noxi, Sweden and Martina, Due Carrare, Padova, Italy), in comparison to thermoformed aligners, Zendura FLX (Bay Materials LLC, Fremont, California, USA) and Duran (SCHEU, Iserlohn, Germany).\u0000\u0000\u0000\u0000A stress-relaxation test was conducted using a motorized vertical testing bench, TVO-S (AstraLab, Mariano Comense, Italy), applying a constant and controlled pre-set load. Each sample was subjected to a deflection of 0.5 mm while being immersed in water for eight consecutive h at a constant temperature of 37°C. During this period, data were collected at intervals of 1 s. The same test was repeated twice (test 1 and test 2) on the same specimen, in order to simulate the intermittence of deflection force.\u0000\u0000\u0000\u0000For both Test 1 and Test 2, a total of 28,800 measurements were recorded for each aligner, with one measurement taken per second over a duration of 8 h/test. A statistically significant difference (P < 0.001) was found for all materials and at all time periods were considered. If the percentage of stress relaxation is considered, a significant difference among the four aligners was found as well.\u0000\u0000\u0000\u0000All materials displayed substantial stress decay during the 8-h period of constant load, although significant differences were observed among the various materials under investigation. The Noxi aligner demonstrated the highest force values in both tests, confirmed by low percentages of stress relaxation ranging from 23% to 32%.\u0000","PeriodicalId":42593,"journal":{"name":"APOS Trends in Orthodontics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140085695","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 advent of Mini-screws assisted rapid palatal expansion (MARPE) has introduced a simpler in-office procedure that enables the translation of the alveolar process in adults. This case report showed the combination of MARPE, orthodontic treatment, and gingivoplasty to correct malocclusion and enhance smile aesthetics. A 20-year-old woman expressed concerns about excessive buccal corridors and a gummy smile. She exhibited skeletal class I malocclusion, with buccal corridors exceeding 4 mm, a gummy smile, and lingual tipping of the lower posterior segments. The treatment plan involved utilizing the MARPE appliance, a Nitinol wire, gingivoplasty to address the gummy smile. Retention evaluations demonstrated the stability of MARPE in transversal skeletal discrepancies. There was notable improvement in incisor inclination and soft tissue profile, particularly evident in the E-line and nasolabial angle. Cephalometric analysis confirmed these changes, showing a decrease of 5.9 degrees in the inclination of the maxillary incisors. After a 2-year follow-up, the results remain stable, and the patient expresses satisfaction with the outcome. MARPE can be considered as an effective tool for managing buccal corridors, complemented by fixed orthodontic treatment employing labial appliances and gingivoplasty to correct malocclusion and enhance smile aesthetics. The treatment showed positive long-term outcomes.
迷你螺钉辅助快速腭扩展术（MARPE）的出现，为成人牙槽突的平移带来了一种更简单的诊室内手术。本病例报告显示，MARPE、正畸治疗和牙龈成形术相结合，可以矫正错颌畸形，提高笑容美感。一名 20 岁的女性对颊面角过大和牙龈笑表示担忧。她表现出骨骼Ⅰ类错颌畸形，颊廊超过4毫米，笑起来有牙床感，舌后下段倾斜。治疗方案包括使用MARPE矫治器、镍钛诺丝和牙龈成形术来解决露龈微笑问题。固位评估表明，MARPE矫治器在横向骨骼差异方面具有稳定性。门牙倾斜度和软组织外形都有明显改善，尤其是在 E 线和鼻唇角方面。头颅测量分析证实了这些变化，显示上颌切牙的倾斜度减少了 5.9 度。经过两年的随访，效果保持稳定，患者对结果表示满意。MARPE 可被视为管理颊面角的有效工具，辅以唇侧矫治器和牙龈成形术的固定正畸治疗，可纠正错颌畸形并提高微笑美感。该治疗方法显示出积极的长期效果。
{"title":"Buccal corridor and gummy smile treatment with MARPE and gingivoplasty: A 2-year follow-up case report","authors":"Viet Hoang, Phuoc Hong Tran, Thao Thi Nhu Dang","doi":"10.25259/apos_216_2023","DOIUrl":"https://doi.org/10.25259/apos_216_2023","url":null,"abstract":"The advent of Mini-screws assisted rapid palatal expansion (MARPE) has introduced a simpler in-office procedure that enables the translation of the alveolar process in adults. This case report showed the combination of MARPE, orthodontic treatment, and gingivoplasty to correct malocclusion and enhance smile aesthetics. A 20-year-old woman expressed concerns about excessive buccal corridors and a gummy smile. She exhibited skeletal class I malocclusion, with buccal corridors exceeding 4 mm, a gummy smile, and lingual tipping of the lower posterior segments. The treatment plan involved utilizing the MARPE appliance, a Nitinol wire, gingivoplasty to address the gummy smile. Retention evaluations demonstrated the stability of MARPE in transversal skeletal discrepancies. There was notable improvement in incisor inclination and soft tissue profile, particularly evident in the E-line and nasolabial angle. Cephalometric analysis confirmed these changes, showing a decrease of 5.9 degrees in the inclination of the maxillary incisors. After a 2-year follow-up, the results remain stable, and the patient expresses satisfaction with the outcome. MARPE can be considered as an effective tool for managing buccal corridors, complemented by fixed orthodontic treatment employing labial appliances and gingivoplasty to correct malocclusion and enhance smile aesthetics. The treatment showed positive long-term outcomes.","PeriodicalId":42593,"journal":{"name":"APOS Trends in Orthodontics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139957733","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}
Digital model scans are frequently used today at the beginning and intermediate stages of orthodontic treatment. The aim of this study is to evaluate the effect of orthodontic brackets on linear measurements made on three-dimensional digital models. Dental models were obtained from 40 patients before orthodontic treatment and in the first treatment session. Dental plaster models were converted into digital models using the 3Shape R700 (3Shape, Copenhagen, Denmark) model scanner. Intraoral scans were created with the Shape Trios3 (3Shape, Copenhagen, Denmark) intraoral scanner. Digital models were transferred to the Orthoanalyzer program (3Shape, Copenhagen, Denmark), and linear measurements were made. There was no significant difference in the measurements made in intraoral scans scanned with and without brackets. No significant difference was observed in the measurements made on model scans with and without brackets (P > 0.05). Digital scanner systems, which are increasingly used with developing technology, provide safe and effective results even in the presence of brackets.
{"title":"The effect of the presence of brackets on the reliability of measurements made on three-dimensional digital models","authors":"Esra Tuhan Kutlu, Nurver Karsli","doi":"10.25259/apos_204_2023","DOIUrl":"https://doi.org/10.25259/apos_204_2023","url":null,"abstract":"\u0000\u0000Digital model scans are frequently used today at the beginning and intermediate stages of orthodontic treatment. The aim of this study is to evaluate the effect of orthodontic brackets on linear measurements made on three-dimensional digital models.\u0000\u0000\u0000\u0000Dental models were obtained from 40 patients before orthodontic treatment and in the first treatment session. Dental plaster models were converted into digital models using the 3Shape R700 (3Shape, Copenhagen, Denmark) model scanner. Intraoral scans were created with the Shape Trios3 (3Shape, Copenhagen, Denmark) intraoral scanner. Digital models were transferred to the Orthoanalyzer program (3Shape, Copenhagen, Denmark), and linear measurements were made.\u0000\u0000\u0000\u0000There was no significant difference in the measurements made in intraoral scans scanned with and without brackets. No significant difference was observed in the measurements made on model scans with and without brackets (P > 0.05).\u0000\u0000\u0000\u0000Digital scanner systems, which are increasingly used with developing technology, provide safe and effective results even in the presence of brackets.\u0000","PeriodicalId":42593,"journal":{"name":"APOS Trends in Orthodontics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139784014","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}
Digital model scans are frequently used today at the beginning and intermediate stages of orthodontic treatment. The aim of this study is to evaluate the effect of orthodontic brackets on linear measurements made on three-dimensional digital models. Dental models were obtained from 40 patients before orthodontic treatment and in the first treatment session. Dental plaster models were converted into digital models using the 3Shape R700 (3Shape, Copenhagen, Denmark) model scanner. Intraoral scans were created with the Shape Trios3 (3Shape, Copenhagen, Denmark) intraoral scanner. Digital models were transferred to the Orthoanalyzer program (3Shape, Copenhagen, Denmark), and linear measurements were made. There was no significant difference in the measurements made in intraoral scans scanned with and without brackets. No significant difference was observed in the measurements made on model scans with and without brackets (P > 0.05). Digital scanner systems, which are increasingly used with developing technology, provide safe and effective results even in the presence of brackets.
{"title":"The effect of the presence of brackets on the reliability of measurements made on three-dimensional digital models","authors":"Esra Tuhan Kutlu, Nurver Karsli","doi":"10.25259/apos_204_2023","DOIUrl":"https://doi.org/10.25259/apos_204_2023","url":null,"abstract":"\u0000\u0000Digital model scans are frequently used today at the beginning and intermediate stages of orthodontic treatment. The aim of this study is to evaluate the effect of orthodontic brackets on linear measurements made on three-dimensional digital models.\u0000\u0000\u0000\u0000Dental models were obtained from 40 patients before orthodontic treatment and in the first treatment session. Dental plaster models were converted into digital models using the 3Shape R700 (3Shape, Copenhagen, Denmark) model scanner. Intraoral scans were created with the Shape Trios3 (3Shape, Copenhagen, Denmark) intraoral scanner. Digital models were transferred to the Orthoanalyzer program (3Shape, Copenhagen, Denmark), and linear measurements were made.\u0000\u0000\u0000\u0000There was no significant difference in the measurements made in intraoral scans scanned with and without brackets. No significant difference was observed in the measurements made on model scans with and without brackets (P > 0.05).\u0000\u0000\u0000\u0000Digital scanner systems, which are increasingly used with developing technology, provide safe and effective results even in the presence of brackets.\u0000","PeriodicalId":42593,"journal":{"name":"APOS Trends in Orthodontics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139843772","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}
Body image perception plays an important role in seeking orthodontic treatment. Body dysmorphic disorder (BDD) is a psychological condition where an individual constantly focuses on flaws in their appearance. This study aimed to assess BDD in adult orthodontic treatment candidates according to the index of treatment need (IOTN) in Qazvin city in 2020. This descriptive study was conducted on 404 eligible patients over 18 years of age presenting to dental clinics in Qazvin seeking orthodontic treatment. The patients were categorized according to their IOTN (grades 1–5) and filled out the Body Deformation Metacognition Questionnaire (BDMCQ). Data were analyzed by t-test and Analysis of Variance using the Statistical Package for the Social Sciences. Of all the patients, 50.2% were grade 1 (no need for treatment),and 1.5% were grade 5 (very great need for treatment). Furthermore, 54.5% of patients had severe BDD. BDD had no significant correlation with gender or marital status (P > 0.05). BDD was significantly correlated with age, educational level, and IOTN grade (P < 0.05). The present results revealed that over 50% of patients seeking orthodontic treatment did not need treatment, according to the IOTN. Dental clinicians are advised to be more careful in accepting patients with a history of psychological problems and numerous surgical procedures who seek cosmetic treatments.
{"title":"Body dysmorphic disorder in adult orthodontic treatment candidates according to the index of treatment need","authors":"Maryam Shiazi, Maryam Tofangchiha, Ayda Taheri, Aydin Pirzeh","doi":"10.25259/apos_183_2023","DOIUrl":"https://doi.org/10.25259/apos_183_2023","url":null,"abstract":"\u0000\u0000Body image perception plays an important role in seeking orthodontic treatment. Body dysmorphic disorder (BDD) is a psychological condition where an individual constantly focuses on flaws in their appearance. This study aimed to assess BDD in adult orthodontic treatment candidates according to the index of treatment need (IOTN) in Qazvin city in 2020.\u0000\u0000\u0000\u0000This descriptive study was conducted on 404 eligible patients over 18 years of age presenting to dental clinics in Qazvin seeking orthodontic treatment. The patients were categorized according to their IOTN (grades 1–5) and filled out the Body Deformation Metacognition Questionnaire (BDMCQ). Data were analyzed by t-test and Analysis of Variance using the Statistical Package for the Social Sciences.\u0000\u0000\u0000\u0000Of all the patients, 50.2% were grade 1 (no need for treatment),and 1.5% were grade 5 (very great need for treatment). Furthermore, 54.5% of patients had severe BDD. BDD had no significant correlation with gender or marital status (P > 0.05). BDD was significantly correlated with age, educational level, and IOTN grade (P < 0.05).\u0000\u0000\u0000\u0000The present results revealed that over 50% of patients seeking orthodontic treatment did not need treatment, according to the IOTN. Dental clinicians are advised to be more careful in accepting patients with a history of psychological problems and numerous surgical procedures who seek cosmetic treatments.\u0000","PeriodicalId":42593,"journal":{"name":"APOS Trends in Orthodontics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139801143","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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