Orthodontic Appliances

正畸矫治器
  • 文章类型: Journal Article
    内镜黏膜下剥离术(ESD)治疗结直肠纤维化病变难度大,并发症发生率高。关于正畸橡皮筋(ORB)牵引在降低此过程难度方面的实用性,只有很少的报道。本研究旨在探讨在纤维化结直肠病变ESD中应用ORB牵引时发生穿孔的危险因素。我们连续收集了119例纤维化结直肠病变患者的临床资料,这些患者在2019年1月至2024年1月期间接受了ORB和夹子牵引的ESD治疗。分析穿孔可能的危险因素。中位ORB-ESD手术时间为40(IQR28-62)min,整体切除率和R0切除率分别为94.1%和84.0%,分别。119例患者中有16例发生穿孔(13.4%)。病变的大小,结肠右半或肠道皱褶上的病变,纤维化的程度,操作时间,手术经验与ORB-ESD穿孔相关(P<0.05)。多因素logistic回归分析显示,右半结肠病变(OR9.027;95%CI1.807~45.098;P=0.007)和肠道皱折病变(OR7.771;95%CI1.298~46.536;P=0.025)是ORB-ESD穿孔的独立危险因素。ORB-ESD是治疗纤维化结直肠病变的有效可行方法。需要对右侧结肠和整个肠丛的病变进行充分的术前评估,以减轻穿孔的风险。
    Endoscopic submucosal dissection (ESD) of fibrotic colorectal lesions is difficult and has a high complication rate. There are only a few reports on the utility of orthodontic rubber band (ORB) traction in reducing the difficulty of this procedure. This study aimed to investigate the risk factors for perforation when applying ORB traction during ESD of fibrotic colorectal lesions. We continuously collected the clinical data of 119 patients with fibrotic colorectal lesions who underwent ESD with ORB and clip traction between January 2019 and January 2024. Possible risk factors for perforation were analyzed. The median ORB-ESD operative time was 40 (IQR 28-62) min, and the en bloc and R0 resection rates were 94.1% and 84.0%, respectively. Perforation occurred in 16 of 119 patients (13.4%). The lesion size, lesion at the right half of the colon or across an intestinal plica, the degree of fibrosis, operation time, and the surgeon\'s experience were associated with perforation during ORB-ESD (P < 0.05). Multivariate logistic regression analysis showed that lesions in the right colon (OR 9.027; 95% CI 1.807-45.098; P = 0.007) and those across an intestinal plica (OR 7.771; 95% CI 1.298-46.536; P = 0.025) were independent risk factors for perforation during ORB-ESD. ORB-ESD is an effective and feasible approach to treat fibrotic colorectal lesions. Adequate preoperative evaluation is required for lesions in the right colon and across intestinal plicas to mitigate the risk of perforation.
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  • 文章类型: Journal Article
    本研究旨在合成一种新型的甲基丙烯酸二甲基氨基十六烷基酯(DMAHDM)接枝的弹性体结扎,为改善固定正畸牙釉质脱矿问题提供了新的策略。使用紫外光化学接枝将DMAHDM以不同的质量分数掺入弹性体结扎物中。评估抗菌性质并基于细胞毒性测定确定最佳DMAHDM量。此外,进行测试以评估弹性体结扎线的机械性能的体内变化。为了评估预防牙釉质脱矿的实际体内有效性,建立大鼠脱矿模型,通过对表面微观结构变化的分析,元素组成,和纳米力学性能。含有2%DMAHDM的弹性体结合法显示出优异的生物相容性和最佳的抗菌性能,24小时内乳酸产量减少65.3%,生物膜细菌减少50.0%,力学性能与对照组无显著差异(p>0.05)。最重要的是,它们有效地防止了体内牙釉质脱矿,弹性模量提高73.2%,硬度提高204.8%。掺入DMAHDM的弹性结合法在防止牙釉质脱矿质方面显示出巨大的应用潜力。为解决这一问题提供了一种新的策略。
    This study aimed to synthesize a novel elastomeric ligature with dimethylaminohexadecyl methacrylate (DMAHDM) grafted, providing a new strategy for improving the issue of enamel demineralization during fixed orthodontics. DMAHDM was incorporated into elastomeric ligatures at different mass fractions using ultraviolet photochemical grafting. The antibacterial properties were evaluated and the optimal DMAHDM amount was determined based on cytotoxicity assays. Moreover, tests were conducted to evaluate the in vivo changes in the mechanical properties of the elastomeric ligatures. To assess the actual in vivo effectiveness in preventing enamel demineralization, a rat demineralization model was established, with analyses focusing on changes in surface microstructure, elemental composition, and nanomechanical properties. Elastomeric ligatures with 2% DMAHDM showed excellent biocompatibility and the best antibacterial properties, reducing lactic acid production by 65.3% and biofilm bacteria by 50.0% within 24 h, without significant mechanical property differences from the control group (p > 0.05). Most importantly, they effectively prevented enamel demineralization in vivo, enhancing elastic modulus by 73.2% and hardness by 204.8%. Elastomeric ligatures incorporating DMAHDM have shown great potential for application in preventing enamel demineralization, providing a new strategy to solve this issue during fixed orthodontics.
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  • 文章类型: Journal Article
    背景在当代,在科学和技术没有界限的地方,这项体内研究探讨了使用TwinBlock的生长调节疗法的影响,Forsus抗疲劳,和ClearBlock矫治器对牙龈沟液(GCF)中碱性磷酸酶(ALP)水平的影响。骨生理学涉及建模和重塑,正畸对牙齿施加力,影响组织反应性和骨建模。ALP,成骨细胞功能的标志,在骨骼生长中起着至关重要的作用。GCF反映了正畸力施加过程中的免疫和炎症反应,使其成为研究与骨转换相关的正在进行的代谢过程的有价值的培养基。目的本研究旨在比较分析生长调节治疗期间GCF中的ALP水平,评估双块的疗效,Forsus抗疲劳,和清除块电器。该研究涉及30个实验样本,分为三个研究组和一个对照组。样本以不同的时间间隔收集,和ALP水平使用分光光度计分析。统计分析包括配对和非配对t检验,单向方差分析(ANOVA),和多重比较。结果结果表明,生长调节治疗期间ALP水平显着增加,表明与骨重建呈正相关。TwinBlock似乎是最有效的设备,与ClearBlock和Forsus组相比,表现出更高的ALP活性。结论总之,这项研究为生长调节治疗期间的生化反应提供了有价值的见解,强调GCF分析在了解正畸治疗效果方面的潜力。
    Background In the contemporary era, where science and technology know no boundaries, this in vivo study explores the impact of growth modulation therapy using Twin Block, Forsus Fatigue Resistant, and Clear Block appliances on alkaline phosphatase (ALP) levels in gingival crevicular fluid (GCF). Bone physiology involves modeling and remodeling, with orthodontics applying forces to teeth, influencing tissue reactivity and bone modeling. ALP, a marker of osteoblast function, plays a crucial role in bone growth. GCF reflects immunological and inflammatory responses during orthodontic force application, making it a valuable medium for studying ongoing metabolic processes related to bone turnover. Aim The study aims to comparatively analyze ALP levels in GCF during growth modulation therapy, assessing the efficacy of Twin Block, Forsus Fatigue Resistant, and Clear Block appliances. The research involves 30 experimental samples divided into three study groups and a control group. The samples are collected at various time intervals, and ALP levels are analyzed using a spectrophotometer. Statistical analysis includes paired and unpaired t-tests, one-way analysis of variance (ANOVA), and multiple comparisons. Results Results demonstrate a significant increase in ALP levels during the growth modulation therapy, indicating a positive correlation with bone remodeling. Twin Block appears to be the most effective appliance, exhibiting higher ALP activity compared to Clear Block and Forsus groups. Conclusion In conclusion, this study provides valuable insights into the biochemical responses during growth modulation therapy, emphasizing the potential of GCF analysis in understanding orthodontic treatment effects.
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  • 文章类型: Journal Article
    如今,矫正器代表了一种可能的治疗方法,该方法结合了美学和功能,以解决牙齿咬合不正。然而,它们需要患者的显着依从性。根据制造商的说法,为了达到最佳的治疗水平,每天至少需要22小时的佩戴;因此,矫正器只能在进餐时移除。如果允许患者服用矫正器,则患者的依从性可能会增加,治疗持续时间可能会减少。已经考虑了患者在进餐时保持对准器的想法,不仅有利于患者的依从性,而且有利于治疗的有效性。这项研究旨在评估对准者在食用某些食物时引起的咀嚼困难程度以及剩余的残留物数量。
    方法:使用Google表格对240名患者进行了名为“使用对齐器评估咀嚼功能的问卷”的问卷。通过可靠性测试,采用测试-重测方法对调查进行了验证。此方法在所有项目中具有较高的相关系数0.9(截止值为0.8),具有统计学意义。和良好的内部相关系数(α>0.9)。进行的统计分析包括描述性分析,频率,百分比,皮尔逊相关性检验和弗里德曼检验。
    结果:Pearson检验显示,除了肉或clams与酸奶或冰淇淋之间以及与马苏里拉奶酪或软奶酪之间在食物咀嚼困难方面具有统计学上的显着相关性。皮尔逊检验显示,关于食物残渣的所有项目之间具有统计学上的显著相关性。共有69.2%的队列报告了咀嚼期间矫正器的一些运动。总的来说,88.3%的人确认在咀嚼过程中没有察觉到矫正器的变形或断裂。此外,79.2%的人表示,如果使用矫正器进食被证明可以加快治疗速度,他们将继续进食。
    结论:咀嚼酸奶等食物时,穿着清晰的矫正器,冰淇淋,软奶酪,面包,大米,等。,可以帮助缩短正畸治疗的持续时间,对患者和正畸医生都有好处。然而,需要使用定性方法进行进一步研究,以了解使用对准剂咀嚼食物的障碍和促进因素。
    Nowadays, aligners represent a possible therapeutical approach that combines both esthetic and function in order to address dental malocclusion. However, they require a significant level of compliance from the patient. According to the manufacturer, at least 22 h of wearing a day is demanded to reach the optimal therapeutical level; hence, aligners can only be removed during meals. Patients\' compliance might increase and the duration of the treatment might decrease if they were allowed to eat with aligners on. The idea of patients keeping the aligners on during meals has been contemplated, not only to favor patients\' compliance but also treatment effectiveness. This study aims to assess the degree of chewing difficulty that aligners cause when eating certain kinds of food and the quantity of residue left.
    METHODS: A questionnaire titled \"Questionnaire for the Assessment of Masticatory Function with Aligners\" was administered using Google Forms to 240 patients in treatment with clear aligners. The survey was validated through the reliability test using the test-retest method. This method had a higher correlation coefficient of 0.9 across all items (with a cutoff of 0.8) with statistical significance, and an excellent internal correlation coefficient (α > 0.9). The statistical analysis performed consisted of descriptive analysis, frequencies, percentages, Pearson\'s correlation test and Friedman\'s test.
    RESULTS: Pearson\'s test showed a statistically significant correlation between all items except between meat or clams and yogurt or ice cream and with mozzarella or soft cheese regarding food chewing difficulties. Pearson\'s test showed a statistically significant correlation between all items regarding food residues. A total of 69.2% of the cohort reported some movements of aligners during mastication. In total, 88.3% of them affirmed not to have perceived deformations or breakage of aligners during chewing. Furthermore, 79.2% of them declared that they would continue to eat if eating with aligners was proven to speed up treatment.
    CONCLUSIONS: Wearing clear aligners while chewing foods such as yogurt, ice cream, soft cheese, bread, rice, etc., can be possible and can help shorten the duration of orthodontic treatment, benefiting both the patient and the orthodontist. However, further research using qualitative methods is needed to understand the barriers and facilitators to chewing food with aligners.
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  • 文章类型: Journal Article
    评估热成型和3D打印透明矫正器的厚度变化。
    六种具有不同初始厚度的不同热塑性材料用于使用Biostar®设备(Biostar®,SCHEU-DENTALGmbH,Iserlohn,德国)。此外,使用IZZIDirect打印机(3Dtech,萨格勒布,克罗地亚)。使用电子测微计(电子通用测微计,Schut几何计量学,格罗宁根,荷兰,精度:0.001毫米),每个对准器总共20个点。使用JASP程序(JASP,阿姆斯特丹大学,阿姆斯特丹,荷兰)。
    热成型组和印刷组之间的差异具有统计学意义。发现不同热成型材料之间以及3D打印材料之间存在显着差异。热成型矫正器的厚度在上颌中偏差更大,而印刷对准器的厚度在下颌中偏差更大。两者差异均具有统计学意义。在Duran0.75中发现了与初始厚度的最大平均偏差;Erkodur0.6;Erkoloc-Pro1.0;IZZI0.5;NextDent0.6和NextDentA0.6。NextDent组的双颌所有牙齿的偏差最小,除了上,下第一磨牙,NextDentA组更准确。
    热成型矫正器显示出下降的值,与原始材料厚度相比,印刷的材料显示出大部分增加的值。最高的平均偏差属于IZZI组,NextDent组的平均偏差最低。与尖点和裂缝处的厚度相比,两个对准器的边缘处的厚度较薄。
    UNASSIGNED: To assess thickness variations of thermoformed and 3D-printed clear aligners.
    UNASSIGNED: Six different thermoplastic materials with different initial thicknesses were used for aligner thermoforming using Biostar® device (Biostar®, SCHEU-DENTAL GmbH, Iserlohn, Germany). Also, two different dental resins were used to create the printed aligners in three digitally designed thicknesses using IZZI Direct printer (3Dtech, Zagreb, Croatia). The aligners were measured using an electronic micrometer (ELECTRONIC UNIVERSAL MICROMETER, Schut Geometrical Metrology, Groningen, The Netherlands, accuracy: 0.001 mm) on a total of 20 points per aligner. Statistical analysis was performed using the JASP program (JASP, University of Amsterdam, Amsterdam, The Netherlands).
    UNASSIGNED: The difference between the thermoformed and printed groups was statistically significant. Significant differences between different thermoformed materials and between 3D-printed materials were found. The thickness of thermoformed aligners deviated more in the upper jaw, whereas the thickness of printed aligners deviated more in the lower jaw. Both differences were statistically significant. The greatest average deviation from the initial thickness was found in Duran 0.75; Erkodur 0.6; Erkoloc-Pro 1.0; IZZI 0.5; NextDent 0.6 and NextDent A 0.6. NextDent group had the lowest deviations for all teeth of both jaws, except for upper and lower first molar where NextDent A group was more accurate.
    UNASSIGNED: Thermoformed aligners showed decreased values, while printed ones showed mostly increased values compared to the original material thickness. The highest mean deviation belonged to IZZI group, and the NextDent group had the lowest mean deviation. The thickness of both aligners was thinner at the edges compared to the thickness at cusps and fissures.
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  • 文章类型: Journal Article
    我们旨在评估COVID-19大流行对青少年正畸治疗的影响,并确定人格特质和父母的感知是否是青少年患者担忧的预测因素。
    样本包括229名青少年患者(57.2%为女性)和223名父母(65.1%为女性)。问卷调查包括有关感染控制的重要性以及对治疗持续时间和结果的关注。使用探索性因子分析确定了它们的潜在结构。大五量表用于评估人格特质。通过分层多元回归分析,检验了患者和父母对正畸的关注以及对感染控制措施重要性的认识。
    患者问卷显示了两个因素,治疗关注(TC)和对措施重要性的认识(AM),以及家长问卷的四个因素,父母治疗关注(PTC),家长意识到措施的重要性(PAM),父母对流感大流行(PCP)的关注和父母对孩子对流感大流行(PCC)的关注。青少年的人格特质不是TC或AM的预测因子。PTC是TC的预测因子(p<0.001),占方差的28%。PAM和患者对新闻的关注是AM的预测因子(p≤0.022),占方差的24%和2%,分别。
    在COVID-19大流行期间,父母的关注和对措施的认识对青少年正畸患者的态度具有重要作用,而人格特质却没有。临床医生应该更加强调与父母的沟通。
    UNASSIGNED: We aimed to assess the impact of the COVID-19 pandemic on the concern of adolescents in orthodontic treatment, and to determine whether personality traits and parental perception were predictors of adolescent patients\' concerns.
    UNASSIGNED: The sample consisted of 229 adolescent patients (57.2% female) and 223 parents (65.1% female). Questionnaires included items about the importance of infection control and concern about treatment duration and results. Their latent structure was determined using exploratory factor analysis. The Big Five Inventory was used for assessing personality traits. Predictors of patients\' and parental orthodontic concern and awareness of the importance of infection control measures were tested by the hierarchical multiple regression analysis.
    UNASSIGNED: Two factors were revealed for the patient questionnaire, Treatment concern (TC) and Awareness of the importance of measures (AM), and four factors for the parent questionnaire, Parents\' treatment concern (PTC), Parents\' awareness of the importance of measures (PAM), Parents\' concern about the pandemic (PCP) and Parents\' concern about their child with regards to the pandemic (PCC). Adolescents\' personality traits were not predictors of either TC or AM. PTC was a predictor of TC (p<0.001), accounting for 28% of the variance. PAM and the patient\'s following of the news were predictors of AM (p≤0.022), accounting for 24% and 2% of the variance, respectively.
    UNASSIGNED: Parental concern and awareness of measures had an important role in attitudes of adolescent orthodontic patients during the COVID-19 pandemic, while personality traits did not. The clinician should put additional emphasis on communication with the parent.
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  • 文章类型: Journal Article
    背景:本文分析了三个患者组之间的微生物参数和牙周健康状况的差异:那些使用固定矫治器进行常规正畸治疗的患者,使用清晰的矫正器进行正畸治疗的患者,对照组不接受治疗。
    方法:在本研究中,纳入60例患者。微生物分析采用细菌形态分析的定性和半定量方法。
    结果:分析显示,对于透明的口腔和牙周健康矫正器有显著差异。这可以归因于更好的细菌生物膜去除和减少对牙周膜的机械应力,容易清除矫正器的促进因素。观察到全口斑块评分的显著差异(p值<0.05),全口出血评分,斑块指数,和牙周健康评估测量。
    结论:尽管与使用传统正畸矫治器治疗的患者相比,矫治器组患者的整体卫生似乎有所改善,关于斑块组成没有统计学意义的结果。在这项研究的后续行动中,将使用更具体的技术进一步解决微生物学方面的问题。
    BACKGROUND: This article analyzes differences in microbiological parameters and periodontal health conditions among three patient groups: those undergoing conventional orthodontic treatment with fixed appliances, patients undergoing orthodontic treatment with clear aligners, and a control group receiving no treatment.
    METHODS: In this study, 60 patients were enrolled. The microbiological analysis employed a qualitative and semi-quantitative methodology of bacterial morphotype analysis.
    RESULTS: The analyses revealed a significant difference in favor of clear oral and periodontal health aligners. This could be attributed to better bacterial biofilm removal and reduced mechanical stress on the periodontal ligament, factors facilitated by the ease of clear aligner removal. Significant differences (p-value < 0.05) were observed for the Full-Mouth Plaque Score, Full-Mouth Bleeding Score, Plaque Index, and periodontal health assessment measurements.
    CONCLUSIONS: Although overall hygiene appears to be improved in patients in the aligners group compared to those treated with conventional orthodontic appliances, there are no statistically significant results regarding plaque composition. Microbiological aspects will be further addressed using more specific techniques in the follow-up of this research.
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  • 文章类型: Journal Article
    颈椎姿势与颅面形态有关,气道,步态和身体姿势。这种姿势可能会受到功能矫治器疗法带来的下颌位置变化的影响。因此,本系统综述旨在评估在骨骼II类受试者中使用功能矫治器治疗时颈椎姿势的变化.
    在六个电子数据库中搜索研究-Medline(通过Pubmed),Cochrane图书馆,OVID,LILACS,Scopus和WebofScience进行到2024年1月18日,没有任何日期或出版语言的限制。资格筛选,研究选择,数据提取由两名评审员独立进行.采用纽卡斯尔渥太华量表和CochraneRoB2.0对纳入研究的偏倚风险进行评估。使用随机效应模型进行Meta分析,以评估可移动和固定功能矫治器的颈椎变化。
    12篇满足资格标准的文章被纳入系统评价,9篇文章被纳入荟萃分析。五项研究显示偏见的风险较低,一个是中度的,六个是高风险的。等级评估显示了低质量的证据。荟萃分析显示,上颈椎倾斜度降低了1.16°(95%CI为-2.68至0.35,I2=6%),中颈椎倾斜增加2.20°(95%CI为0.46-3.94,I2=49%),颈椎曲角增加1.60°(95%CI为0.12-3.09,I2=89%),颈椎前凸角减少1.54°(95%CI为-4.16-1.08,I2=0%)。
    使用功能性矫治器注意到颈椎的最小直立。固定功能电器比可移动功能电器发挥更大的作用。通过可移除的功能性矫治器治疗可减少宫颈高前凸。虽然这些变化很小,临床正畸医生应该意识到功能疗法也会影响颈椎姿势。由于证据的异质性和低质量,结果将被批判性地考虑。
    UNASSIGNED: Cervical spine posture is related to craniofacial morphology, airway, gait and body posture. This posture may be influenced by the changes in the mandibular position brought about by functional appliance therapy. Therefore, this systematic review aimed to assess the changes in the cervical spine posture with functional appliance treatment in Skeletal Class II subjects.
    UNASSIGNED: A search of studies in six electronic databases - Medline (via Pubmed), the Cochrane Library, OVID, LILACS, Scopus and Web of Science were performed until January 18, 2024 without any restriction in date or language of publication. Eligibility screening, study selection, and data extraction were performed by two reviewers independently. The risk of bias assessment of the included studies was performed with the Newcastle Ottawa scale and Cochrane RoB 2.0. Meta-analysis was performed using random effects model for assessment of changes in the cervical spine with removable and fixed functional appliances.
    UNASSIGNED: Twelve articles that satisfied the eligibility criteria were included for systematic review and nine articles for meta-analysis. Five studies showed a low risk of bias, one as moderate and six as high risk of bias. GRADE assessment revealed a low quality evidence. Meta-analysis revealed a decrease of the upper cervical inclination by 1.16° (95 % CI of -2.68 to 0.35, I2 = 6 %), an increase of the middle cervical inclination by 2.20° (95 % CI of 0.46-3.94, I2 = 49 %), an increase in cervical curvature angle by 1.60° (95 % CI of 0.12-3.09, I2 = 89 %) and a decrease in cervical lordosis angle by 1.54° (95 % CI of -4.16 to 1.08, I2 = 0 %).
    UNASSIGNED: Minimal uprighting of the cervical spine was noted with functional appliances. Fixed functional appliances exerted a greater effect than removable functional appliances. Cervical hyperlordosis was reduced with removable functional appliance treatment. Though these changes are minimal, the clinical orthodontist should be aware that functional therapy also influences cervical spine posture. Due to the heterogeneity and low quality of evidence, the results are to be considered critically.
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  • 文章类型: Journal Article
    这项初步研究涉及对接受治疗矫正器治疗的I类错牙合畸形患者的预测牙齿变化的成功评估,使用叠加。
    将数字模型叠加并使用3DSlicer5.0软件进行分析。关于水平和垂直线性位移的治疗和预测变化,中远端旋转,和门牙颊舌倾翻进行量化。通过将平均治疗变化量除以预测的变化量来计算成功率。
    下切牙侵入是预测的垂直位移中最准确的(86.96%),上犬齿的颊扩张(99.32%)和下切牙的内侧平移(98.57%)是最准确的水平线性位移。下切牙的预测旋转精度最高(75.69%)。切牙颊舌翻倒成功率在45.78%至69.31%之间。发现上摩尔挤压(10.23%)和收缩(8.91%)的预测变化精度较低。然而,计划在这些方向上进行最小的校正。
    可以评估上颌和下颌弓所有区域的牙齿变化。对于计划用于ClearCorrect对准器治疗的大多数运动,观察到了很高的成功率。
    UNASSIGNED: This pilot study concerned evaluation of the success of predicted dental changes in patients presenting with Class I malocclusions who were submitted to treatment aligners, using the superimposition.
    UNASSIGNED: The digital models were superimposed and analyzed using 3DSlicer 5.0 software. Treatment and predicted changes regarding horizontal and vertical linear displacements, mesiodistal rotations, and incisor buccolingual tipping were quantified. The success rates were calculated by dividing the mean treatment change amount by the predicted change amount.
    UNASSIGNED: Lower-incisor intrusion was the most accurate of the predicted vertical displacements (86.96 %), and buccal expansion of upper canines (99.32 %) and mesial translation of the lower incisors (98.57 %) were the most accurate horizontal linear displacements. The predicted rotation was achieved with the highest accuracy for lower incisors (75.69 %). Incisor buccolingual tipping success rates ranged between 45.78 % and 69.31 %. Low accuracy of predicted changes was found for upper-molar extrusion (10.23 %) and constriction (8.91 %). However, minimal corrections in these directions were planned.
    UNASSIGNED: Dental changes for all regions of maxillary and mandibular arches could be evaluated. High success rates were observed for most of the movements planned for ClearCorrect aligner therapy.
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    文章类型: Journal Article
    Linguoverted mandibular canine teeth (LMC) is a common malocclusion in dogs. Several inclined bite-plane techniques using acrylic resin have been introduced to correct LMC in dogs. Although these techniques have suggested modifications to overcome shortcomings, there are still limitations; e.g., high technical sensitivity, as the viscous acrylic resin must still be fabricated in the oral cavity. The authors developed a novel method for small-breed dogs that uses a doughy acrylic resin form to achieve an easy intraoral design and extraoral fabrication. Eight small-breed dogs were presented to evaluate and treat malocclusion causing palatal trauma. First, a Class-1 malocclusion with linguoversion of the mandibular canine teeth (6 dogs with unilateral LMC and 2 dogs with bilateral) was diagnosed based on oral examination. Dogs were treated with the new method using a doughy acrylic resin form for 6 to 7 wk and had posttreatment follow-up 1 y after the procedure. All treated canine teeth were in correct positions 1 y after the appliances were removed. Key clinical message: The authors believe that the new method using a doughy acrylic resin form could be a good alternative for veterinarians to use when treating LMC.
    Un nouveau dispositif orthodontique en acrylique pour le traitement des canines mandibulaires linguoverties chez les petits chiens. Les canines mandibulaires linguoverties (LMC) sont une malocclusion courante chez le chien. Plusieurs techniques de plan de morsure incliné utilisant de la résine acrylique ont été introduites pour corriger la LMC chez le chien. Bien que ces techniques aient suggéré des modifications pour surmonter les lacunes, elles présentent encore des limites; par exemple, une sensibilité technique élevée, car la résine acrylique visqueuse doit encore être fabriquée dans la cavité buccale. Les auteurs ont développé une nouvelle méthode pour les chiens de petite race qui utilise une forme pâteuse de résine acrylique pour obtenir une conception intra-orale et une fabrication extra-orale faciles. Huit chiens de petite race ont été présentés pour évaluer et traiter une malocclusion provoquant un traumatisme palatin. Tout d’abord, une malocclusion de classe 1 avec linguoversion des canines mandibulaires (6 chiens avec LMC unilatérale et 2 chiens avec bilatérale) a été diagnostiquée sur la base d’un examen oral. Les chiens ont été traités avec la nouvelle méthode en utilisant une forme pâteuse de résine acrylique pendant 6 à 7 semaines et ont fait l’objet d’un suivi post-traitement 1 an après la procédure. Toutes les canines traitées étaient dans la bonne position un an après le retrait des appareils.Message clinique clé:Les auteurs estiment que la nouvelle méthode utilisant une forme pâteuse de résine acrylique pourrait être une bonne alternative que les vétérinaires pourraient utiliser lors du traitement du LMC.(Traduit par Dr Serge Messier).
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