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3D Printing in Orthodontics: An Introduction 3D打印在正畸:介绍
Pub Date : 2023-10-31 DOI: 10.58624/svoade.2023.04.0155
Jack Slaymaker, Julian Woolley, Sunil Hirani
Aim: To introduce 3D printing to individuals or practices providing orthodontic treatment. Introduction: 3D printing or additive manufacturing is the fabrication of objects from a 3D digital model. 3D printing can be achieved by the successive deposition of photo-sensitive resin material, cured solid with a light source such as a laser. This allows for customisable appliances and improved workflow in practice. 3D printing is a rapidly evolving technology, with many practices beginning to implement it into their digital workflows. Adoption and integration come with many challenges. Conclusion: Provided suitable materials and 3D printing protocols are followed, 3D-printing produces accurate and robust dental models without the errors associated with conventional dental impressions and plaster models. While this involves the transition from conventional methods of fabrication and outsourcing to a fully digital workflow, savings and improved efficiencies can result.
目的:向提供正畸治疗的个人或实践介绍3D打印。简介:3D打印或增材制造是从3D数字模型制造物体。3D打印可以通过光敏树脂材料的连续沉积来实现,用激光等光源固化固体。这允许在实践中实现可定制的设备和改进的工作流。3D打印是一项快速发展的技术,许多实践开始将其应用到数字工作流程中。采用和集成伴随着许多挑战。结论:在合适的材料和3D打印方案下,3D打印可以制作出准确、坚固的牙模型,没有传统牙印模和石膏模型的错误。虽然这涉及到从传统的制造和外包方法到全数字化工作流程的转变,但可以节省成本并提高效率。
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引用次数: 0
Evaluation of Fracture Resistance of Endodontically Treated Teeth with Two Different Post System: An In-Vitro Study 两种不同桩位系统根管治疗牙体抗折性的体外研究
Pub Date : 2023-10-16 DOI: 10.58624/svoade.2023.04.0153
Salil Wangu, Aishwarya Anand
Background: The number of endodontic procedures has increased steadily in the past decade with highly predictable results. Therefore, restoration of teeth after endodontic treatment is becoming an integral part of the restorative practice in dentistry. When restoring an endodontically treated tooth, the first step is to assess the level of predictability involved in the restoration. Proper restoration of ET teeth begins with a good understanding of their physical and biomechanical properties, anatomy, and a sound knowledge of the endodontic, periodontal, restorative and occlusal principles. A thorough understanding of posts is necessary to make the right selection, as there are so many choices available. Finally, the choice of core material and the final restoration are important in achieving long-term clinical success. Aim: To compare the fracture resistance of endodontically treated teeth restored with two different post-core systems. Material and Method: The samples were split into two groups of 15 each and given root canal therapy on 30 maxillary incisors. For two experimental groups, post space preparation and tooth restoration utilizing glass fibre posts with composite cores and adhesive resin cement (Group A) and zirconia posts (Group B) respectively were carried out.. Using the universal testing apparatus, 0.5 mm/min of force was applied to each sample at 130 degrees until fracture was experienced. A statistical analysis of the data was done after measuring the fracture resistance. Result: The least fracture resistance was found in Group A (Glass Fibre Post). Additionally statistically more significant than groups A and B was group B (Zirconia Post). According to the statistics that were found, the p value is significant (p< 0.05). Conclusion: The load needed to fracture the custom-made zirconia post was higher than that of the glass fibre post, according to the study's limitations.
背景:在过去的十年中,牙髓治疗的数量稳步增加,结果高度可预测。因此,牙髓治疗后的牙齿修复正在成为牙科修复实践的一个组成部分。修复根管治疗过的牙齿时,第一步是评估修复过程中可预测性的水平。ET牙的正确修复始于对其物理和生物力学特性、解剖结构的良好理解,以及对牙髓学、牙周学、修复学和咬合学原理的良好了解。要做出正确的选择,全面了解职位是必要的,因为可供选择的职位太多了。最后,核材料的选择和最终的修复对于获得长期的临床成功是重要的。目的:比较两种不同桩核系统根管治疗后牙体的抗折断性。材料与方法:将标本分为两组,每组15例,对30例上颌切牙进行根管治疗。两个实验组分别采用复合芯玻璃纤维桩和胶粘剂树脂桩进行桩位预备和牙体修复(A组),氧化锆桩(B组)。使用通用测试装置,在130度方向对每个试样施加0.5 mm/min的力,直至试样发生断裂。在测量了断裂阻力后,对数据进行了统计分析。结果:A组(玻璃纤维桩)抗折性最低。此外,B组(Zirconia Post)比A、B组有统计学意义。根据发现的统计量,p值显著(p<0.05)。结论:根据本研究的局限性,定制氧化锆桩断裂所需的载荷高于玻璃纤维桩。
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引用次数: 0
Trends in Maxillary Sinus Filling Using a Lateral Surgical Approach 上颌窦侧入路填充术的发展趋势
Pub Date : 2023-10-16 DOI: 10.58624/svoade.2023.04.0154
Irineu Gregnanin Pedron, Elio Hitoshi Shinohara, Cristiano Gaujac, Rodolfo Lopes, Marcelo Yoshimoto, Alexandre Tadashi Hashimoto, Marcos Barbosa Salles, Fernando Kendi Horikawa
Dental rehabilitation using osseointegrated implants is a routine for dentists. Maxillary sinus lift surgery is essential in expanding the indications for dental implants, as it re-establishes adequate bone volume for the installation of implants in the ideal areas in the middle posterior portion of maxillae that have undergone the physiological process of pneumatization. This article describes the chronology of this technique and its increase over time.
使用骨整合种植体进行牙齿康复是牙医的常规做法。上颌窦提升手术是扩大种植体适应症的必要条件,因为它在上颌中后部分经历了生理充气过程的理想区域重新建立足够的骨体积以安装种植体。本文描述了这种技术的发展历程,以及它的发展历程。
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引用次数: 0
Evaluation of the Accuracy of Demirjian's Method for Dental Age Estimation in Northern Sudanese Children and Adolescents 北苏丹儿童和青少年牙龄估计Demirjian方法的准确性评价
Pub Date : 2023-09-25 DOI: 10.58624/svoade.2023.04.0152
Amin Alemam, Sara Alkholi, Nicholas Marquez-Grant
A variety of methods have been used worldwide in dental age assessment in the living. However, since dental development varies between populations, population-specific studies are necessary. This study aimed at investigating the accuracy of age estimation using developing teeth from panoramic radiographs according to the method devised by Demirjian and colleagues in a sample of Northern Sudanese children and adolescents (2) Methods: A total sample of 917 X-Rays from patients aged between 6-16 years of age was available, but only 527 were suitable (265 boys, 272 girls). (3) Results: The mean difference between chronological and dental age for Northern Sudanese boys, ranged between (–0.389 to +0.571) while, for the Northern Sudanese girls, the mean difference ranged between (–0.056 to+0.732); (4) Conclusions: The results showed that the Demirjian's method did not accurately predict age in this Northern Sudanese population. Standards were produced to convert the maturity scores calculated by Demirjian's method to a new dental age assessment for Northern-Sudanese population
在世界范围内,各种各样的方法被用于在世者的牙齿年龄评估。然而,由于不同人群的牙齿发育不同,因此有必要进行针对特定人群的研究。本研究旨在根据Demirjian及其同事在北苏丹儿童和青少年样本中设计的方法,调查利用全景x光片进行牙齿发育年龄估计的准确性(2)方法:来自6-16岁患者的917张x光片样本,但只有527张适合(265名男孩,272名女孩)。(3)结果:北苏丹男孩实足年龄和牙龄的平均差值为(-0.389 ~ +0.571),北苏丹女孩实足年龄和牙龄的平均差值为(-0.056 ~ +0.732);(4)结论:结果表明,Demirjian的方法不能准确预测北苏丹人群的年龄。制定了标准,将Demirjian方法计算的成熟度分数转换为北苏丹人口的新牙齿年龄评估
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引用次数: 0
The Impact of Orthodontic Treatment on Facial Appearance in Angle Class III Patients: A Mini Review 正畸治疗对Angle III类患者面部外观的影响:一个小型综述
Pub Date : 2023-09-22 DOI: 10.58624/svoade.2023.04.0151
Irineu Gregnanin Pedron, João Paulo Pereira, Erika Regina Stocco Di Francesco, Antonio Santana Neto, Danilo Lourenço
Angle Class III malocclusion has a strong genetic influence that can occur in several generations of the same family group. This dentofacial deformity can be identified from an early age, even in childhood. The perception of beauty in the transition phase to adolescence has a greater weight, because in this phase there are immense physiological changes. The need for attention through aesthetic enhancement generates vanity, which can have both beneficial and harmful influences. Nowadays, the young generation craves prominence and subsequently values the exaggerated importance of beauty and the quest for aesthetic perfection. A young patient with a dentofacial deformity caused by Angle Class III malocclusion has a major facial impact. They are usually the victims of teasing, nicknames and psychological pressure and bullying. They become embarrassed, irritable and their self-esteem and social integration suffer. From this perspective, early treatment in children can be beneficial, reducing the psychological burden of facial and dental alterations in the future. The purpose of this article is to review the literature on the facial aspects resulting from orthodontic treatment in Angle Class III patients.
Angle III类错牙合具有很强的遗传影响,可发生在同一家族群的几代人身上。这种牙面畸形可以在很小的时候,甚至在儿童时期就被识别出来。在青春期的过渡阶段,对美的感知具有更大的分量,因为在这个阶段有巨大的生理变化。通过提高审美来获得关注的需要会产生虚荣心,这既有有益的影响,也有有害的影响。如今,年轻一代渴望突出,因此重视美和追求审美完美的夸大重要性。一位年轻的患者因Angle III类错牙合导致牙面畸形,对面部有重大影响。他们通常是戏弄、绰号、心理压力和欺凌的受害者。他们变得尴尬、易怒,自尊和社会融合受到影响。从这个角度来看,儿童早期治疗是有益的,可以减少未来面部和牙齿改变的心理负担。本文的目的是回顾文献正畸治疗对角III类患者面部方面的影响。
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引用次数: 0
Comparative Evaluation of Apical Debris Extrusion During Root Canal Preparation Using Two Different Rotary File Systems: “A Wave One Gold and Hyflex EDM Rotary File Comparison” 两种不同旋转锉系统对根管预备过程中根尖碎片挤压的比较评价:“A Wave One Gold和Hyflex EDM旋转锉的比较”
Pub Date : 2023-09-15 DOI: 10.58624/svoade.2023.04.0149
Hammad Athar
Background: Apically extruded debris following root canal treatment leads to postoperative complications like inflammation, postoperative pain, and delay in periapical healing. Additionally, debris extruded during treatment is responsible for persistent apical area inflammation. Hence, a decrease in debris extrusion is necessary for reduction in postoperative complications. Aim: Two distinct instrumentation methods were used to measure the amount of apically extruded debris after root canal preparation in the present study. Materials and Method: Idea was to include thirty extracted single rooted human premolar teeth for study purpose. After access opening, canal patency was established using a 15 K-file till the apical foramen then it is to be followed by determination of working length by visual method. The samples were divided into 2 groups: Group1: Wave One gold. Group 2: Hyflex EDM Rotary file. The manufacturer’s instructions were followed for the instrumentation. During instrumentation, extruded debris and irrigants were collected into the preweighed test tubes. Following this, these tubes were stored in an incubator at the temperature of 70°C for the next 5 days. To assess the resultant weight of extruded debris, the test tubes were weighed. The final mass of the extruded debris was calculated by subtracting the weight of the initial empty vial from vial containing dry debris. Result: According to the results obtained in this study, both the tested files caused extrusion of debris apically. The h debris extrusion in Hyflex EDM system was reported to be highest, whereas WaveOne Gold showed the lowest value. Conclusion: Result of this study showed that Waveone gold was associated with less debris extrusion in comparison to hyflex EDM rotary file.
背景:根管治疗后根尖挤压碎片会导致术后并发症,如炎症、术后疼痛和根尖周愈合延迟。此外,治疗过程中挤出的碎片是造成持续的根尖区炎症的原因。因此,减少碎片挤压对于减少术后并发症是必要的。目的:本研究采用两种不同的测量方法来测量根管预备后根尖挤压碎片的数量。材料与方法:拟纳入30颗拔除的单根人前磨牙作为研究对象。通道打开后,用15k锉建立根管通畅,直至根尖孔,然后用目测法确定工作长度。将样品分为两组:第一组:波一金。第二组:Hyflex EDM旋转文件。仪器的使用遵循了制造商的说明。在仪器过程中,挤压的碎片和冲洗剂被收集到预称重的试管中。在此之后,这些试管在70°C的温度下储存在培养箱中5天。为了评估挤压碎片的最终重量,对试管进行了称重。挤出碎片的最终质量是通过从含有干碎片的小瓶中减去初始空瓶的重量来计算的。结果:根据本研究的结果,两种试验锉均引起尖部碎片的挤压。据报道,Hyflex EDM系统的碎屑挤压率最高,而WaveOne Gold系统的碎屑挤压率最低。结论:与hyflex EDM旋转锉相比,Waveone gold具有更少的碎片挤压。
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引用次数: 0
Advanced Dental Rehabilitation in Case of Severe Tooth Wear Caused by Gastroesophageal Reflux Disease and Bruxism During COVID-19 Pandemia: A Case Report 新冠肺炎大流行期间胃食管反流病和磨牙导致严重牙齿磨损的高级牙科康复一例
Pub Date : 2023-09-15 DOI: 10.58624/svoade.2023.04.0150
Irineu Gregnanin Pedron, Ana Cláudia de Souza Aguiar, Thiago Gregnanin Pedron, Rabbith Ive Shitsuka Risemberg, João Marcelo Ferreira de Medeiros
Stomatological manifestations of psychosomatic diseases can be associated, culminating in advanced oral alterations. These psychosomatic changes have also increased during the COVID-19 pandemic. In this perspective, parafunctional habits, such as bruxism and clenching, and gastro-oesophageal reflux disease can develop major dental destruction. Thus, various types of treatment are required in the rehabilitation of these patients. The purpose of this article is to present the case of a patient who developed severe tooth wear due to the association between gastro-oesophageal reflux disease and bruxism, during the COVID-19 pandemic. The patient was treated with a bite raising, direct composite restorations and removable prostheses.
心身疾病的口腔表现可能相关,最终导致晚期口腔改变。在COVID-19大流行期间,这些心身变化也有所增加。从这个角度来看,磨牙、紧咬、胃食管反流等功能不良的习惯会对牙齿造成严重的破坏。因此,在这些患者的康复过程中需要多种类型的治疗。本文的目的是介绍在COVID-19大流行期间,由于胃食管反流病和磨牙症之间的关联,患者出现严重牙齿磨损的病例。患者采用咬合提升、直接复合修复和可移动修复体进行治疗。
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引用次数: 0
A Rare Case of Inverted Impaction of Maxillary Central Incisor With U-Shaped Dilaceration of Middle 1/3rd 上颌中切牙内嵌合并中1/3 u型扩张1例
Pub Date : 2023-09-07 DOI: 10.58624/svoade.2023.04.0148
Mohanjee Pandey, Preet Kanwal Ahluwalia, Amaninder Singh, Guneet Kaur Dhillon, Prabhjot Kaur, Sashenka Singh, Jaspreet Kaur
Impaction of maxillary central incisor is not frequently reported in literature. Impacted maxillary incisors are rare and detrimental to aesthetic problems in permanent dentition stage. The term dilaceration describes an abrupt deviation of the long axis of the crown or root portion of a tooth. Dilaceration generally occurs following trauma to the apices of deciduous dentition, which lies is close proximity to the permanent tooth buds.
上颌中切牙嵌塞在文献中并不常见。上颌阻生门牙在恒牙期较为少见,不利于美观。术语扩张是指牙冠或牙根部分的长轴突然偏离。乳牙的顶端靠近恒牙,通常在创伤后发生扩张。
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引用次数: 0
Breast Cancer and Osteocondensation in the Mandible: A Complex Relationship 癌症与下颌骨骨凝结的复杂关系
Pub Date : 2023-09-01 DOI: 10.58624/svoade.2023.04.0147
Mara Figueira
Breast cancer is one of the most prevalent diseases in women worldwide, representing a significant public health challenge. In addition to the traditionally studied aspects of breast cancer pathogenesis, recent research has revealed a complex relationship between breast cancer and osteocondensation, a phenomenon characterized by abnormal increase in bone density. This technical article explores the underlying mechanisms of this intricate relationship, highlighting the factors contributing to osteocondensation in breast cancer patients, as well as the clinical and therapeutic implications of this interaction. This technical article delves into the complex relationship between breast cancer and osteocondensation in the jaw.
癌症是全世界妇女最常见的疾病之一,是一项重大的公共卫生挑战。除了传统研究的乳腺癌症发病机制外,最近的研究揭示了癌症与骨凝结之间的复杂关系,骨凝结是一种以骨密度异常增加为特征的现象。这篇技术性文章探讨了这种复杂关系的潜在机制,强调了导致癌症患者骨凝结的因素,以及这种相互作用的临床和治疗意义。这篇技术性文章深入探讨了癌症与颌骨骨凝结之间的复杂关系。
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引用次数: 0
Mini Implants in Orthodontics: Unveiling Hazards and Complexities 口腔正畸中的微型植入物:揭示其危害和复杂性
Pub Date : 2023-08-31 DOI: 10.58624/svoade.2023.04.0146
Sachin Philip, Krishan Sheoran, Varun Goyal, Gurkeerat Singh, S. Kannan, Raj Kumar Singh, Ankit Chaudhari
In the last two decades, advances in digital and 3D printing technology, a rise in interest in cosmetic orthodontics, particularly among adults, and manufacturer marketing on a global scale have all contributed to clear aligners becoming a staple in modern orthodontic practise. Clear aligners have seen numerous improvements since they were first introduced with the goal of making orthodontic treatment less obvious. Like many other orthodontic tools, transparent aligners are used to move teeth for alignment and to create healthy, attractive smiles, but they are far more comfortable and aesthetically pleasing. The success of the treatment depends on the therapists' expertise and experience with the aligners, careful case selection, and patients' adherence to the prescribed treatment plans.
在过去的二十年里,数字和3D打印技术的进步,对美容正畸的兴趣增加,尤其是在成年人中,以及制造商在全球范围内的营销,都有助于清晰的矫正器成为现代正畸实践的主要内容。自首次推出以来,透明矫正器已经有了许多改进,目的是使正畸治疗不那么明显。像许多其他正畸工具一样,透明矫正器用于移动牙齿进行矫正,并创造健康、迷人的笑容,但它们更舒适、更美观。治疗的成功取决于治疗师对矫正器的专业知识和经验、仔细的病例选择以及患者对处方治疗计划的遵守情况。
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引用次数: 0
期刊
SVOA Dentistry
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