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A Simplified Spring winder For Clinical Application 一种用于临床应用的简化弹簧卷取机
Pub Date : 2021-05-15 DOI: 10.31254/dentistry.2021.6107
Abhik Purkayastha, M. Khan, Nayeem Unnisa
Introduction: The fabrication of coils using heavy gauge stainless steel wire for use in appliances such as the Churro Jumper can be a tedious task and can often result in spaced coils that lead to more flexibility than can be desired, leading to a decreased force application and hence overall lengthened treatment time. Using well placed, tightly adherent coils the force of which can be controlled by placement of the desired number of coils can help to mitigate this shortcoming. Technique: The spring winder described here is easy to fabricate using easily available stationary articles which can be repurposed to form an efficient winder that can coil springs with reduced effort as compared to that would have been required when using orthodontic pliers only. The stationary repurposed for this winder is the electric etching pen which provides a good framework for fabricating the winder. In addition, clear acrylic is used along with a syringe body to hold the winding components. The syringe is filled up with clear acrylic and winding rods are laid down within the acrylic which holds it firmly in place. In addition, the syringe body is embedded into the electric pen handle which allows for easy turning the winder so as to exert effective force while reducing operator effort and fatigue. This also allows for winding of heavy gauge orthodontic wire with little effort. Conclusion: A simplified spring winder can be best indicated for the fabrication of coils for fixed functional appliances like Churro Jumper.
简介:在Churro跳线等设备中使用大规格不锈钢线制造线圈可能是一项繁琐的任务,并且通常会导致间隔线圈,从而导致比期望的更大的灵活性,从而减少施加的力,从而延长整体处理时间。使用放置良好的,紧密粘附的线圈,其力可以通过放置所需数量的线圈来控制,可以帮助减轻这个缺点。技术:这里描述的弹簧绕线机很容易制造,使用容易获得的固定物品,可以重新利用形成一个有效的绕线机,与使用正畸钳时所需的努力相比,可以减少绕线机的工作量。该卷取机的固定装置为电蚀刻笔,为卷取机的制造提供了良好的框架。此外,透明丙烯酸与注射器体一起使用,以保持缠绕组件。注射器充满了透明的丙烯酸树脂,并在丙烯酸树脂内放置了缠绕棒,使其牢固地固定在适当的位置。此外,所述注射器本体嵌入在所述电动笔手柄中,所述电动笔手柄可以方便地转动卷筒,从而在减少操作人员的努力和疲劳的同时施加有效的力量。这也允许绕组重规正畸线与很少的努力。结论:一种简化的弹簧卷绕机可用于制造诸如Churro Jumper等固定功能器具的线圈。
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引用次数: 0
Modified TPA for scissor bite correction: A case report 改良TPA用于剪刀型咬合矫正:1例报告
Pub Date : 2021-05-15 DOI: 10.31254/dentistry.2021.6102
Ayushi Verma, P. Gangurde, Alok Shah, S. Lipare, S. Gaikwad, Nityananda A Shetty
Unilateral scissor bite condition is less prevalent and is often accompanied by cant of occlusion and varying degrees of facial asymmetry. Such discrepancy when accompanied with skeletal etiological factor is difficult to treat. This article presents two case reports to demonstrate simple, efficient and non-invasive camouflage technique to correct unilateral scissor bite of adult patients.
单侧剪型咬合较少见,常伴有咬合不良和不同程度的面部不对称。当伴有骨骼病因时,这种差异难以治疗。本文介绍两例简单、有效、无创的伪装技术,用于矫正成人单侧剪刀咬伤。
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引用次数: 2
Electrolysis method to determine the amount of silver in occlusal and periapical films 电解法测定牙合及根尖周膜中银的含量
Pub Date : 2021-05-15 DOI: 10.31254/dentistry.2021.6103
Cek Dara Manja, Haresh Kumar
Introduction: In diagnosing a disease in certain cases, the dentist also requires additional examinations such as radiographic examination. Many types of radiographs can help dentists in making diagnoses according to their indications, both intra-oral and extra-oral. The conventional X-ray photo technique requires a fixer solution as one of the stages in performing a process that serves to dissolve and inhibit the development of silver halide crystals in the emulsion process. Fixer solutions contain four components dissolved in water, namely the clearing agent, acidifier, preservative and hardener. The aim of the study was to determine the amount of silver contained in the fixer solution after fixing the occlusal film and periapical film using the electrolysis method. Method: was a laboratory experimental study, with a post-test study design. Results: showed that the occlusal film dissolved 6.0 grams while the periapical film dissolved 0.6 grams of silver in the fixer solution. Based on the results of the independent t test, p = 0,000 <0,05 was obtained. Conclusion: of the study was that there was a significant difference in the amount of silver from the fixer after fixing the occlusal film and periapical film using the electrolysis method.
简介:在某些情况下,在诊断疾病时,牙医还需要额外的检查,如放射检查。许多类型的x光片可以帮助牙医根据他们的指征做出诊断,包括口腔内和口腔外。传统的x射线照相技术需要固定液作为在乳剂过程中溶解和抑制卤化银晶体发展的过程的一个阶段。固化剂溶液含有四种溶于水的成分,即清净剂、酸化剂、防腐剂和硬化剂。本研究的目的是测定电解法固定牙合膜和根尖周膜后固定液中银的含量。方法:采用实验室实验研究,采用测试后研究设计。结果:牙合膜溶银6.0 g,尖周膜溶银0.6 g。根据独立t检验的结果,得到p = 0000 < 0.05。结论:本研究的结论是采用电解法固定牙合膜和尖周膜后,固定物中银的含量有显著差异。
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引用次数: 0
Bone healing in critically sized defects in rat calvaria, transplanted with chitosan alone, or associated with collagen and / or chondroitin sulfate:histological and histomorphometric pilot study 单独用壳聚糖或与胶原和/或硫酸软骨素联合移植大鼠颅骨大尺寸缺损的骨愈合:组织学和组织形态计量学初步研究
Pub Date : 2021-05-15 DOI: 10.31254/dentistry.2021.6104
Cynthia Chemaly, Mireille Kallassi, Rawad Samaran, Roy Abou Fadel, N. Naaman, C. Chakar
Background: Chitosan is a natural biopolymer that has gained a special interest in bone regeneration in recent years. Objective: The objective of this study is to show the bone formation obtained following a transplantation of sponges of chitosan alone, chitosan combined with chondroitin sulfate or chitosan combined with chondroitin sulfate and collagen, in rat critical calvarial bone defects. Material and Methods: 12 Wistar rats were divided into 4 groups of 3 rats each. Critically sized bone defects were made in calvaria, and grafted by sponges of:collagen / chitosan / chondroitin (group 1), chitosan (group 2), chitosan / chondroitin sulfate (group3). Bone defects of group 4 remained empty for control. The animals were sacrificed 12 weeks after the surgery. Results: Histological analysis showed the formation of lamellar bone in the chitosan group. In the chitosan / chondroitin sulfate group, formation of a less mature bone than that of the chitosan group was also observed. However, the least bone formation was observed in the collagen / chitosan / chondroitin sulfate group. Histological sections showed the presence of fibrous tissue. The results for this group are similar to the control group. In groups 2 and 3, the materials appear completely resorbed while in group 1 the resorption of the matrix was incomplete. Conclusion: Despite the size of the sample, this study has shown that chitosan alone or in combination with chondroitin sulfate promotes bone formation. On the other hand, the combination chitosan / chondroitin sulfate / collagen showed a negative result.
背景:壳聚糖是一种天然的生物聚合物,近年来在骨再生方面得到了特别的关注。目的:观察壳聚糖单独、壳聚糖联合硫酸软骨素或壳聚糖联合硫酸软骨素和胶原海绵移植对大鼠颅骨骨缺损的修复作用。材料与方法:12只Wistar大鼠随机分为4组,每组3只。采用胶原/壳聚糖/软骨素(1组)、壳聚糖(2组)、壳聚糖/硫酸软骨素(3组)海绵进行骨缺损修复。第4组为空白骨缺损对照组。这些动物在手术后12周被处死。结果:壳聚糖组组织学分析显示板层骨形成。在壳聚糖/硫酸软骨素组中,成熟骨的形成也比壳聚糖组少。胶原/壳聚糖/硫酸软骨素组骨形成最少。组织学切片显示纤维组织的存在。这一组的结果与对照组相似。在2组和3组中,材料完全被吸收,而在1组中,基体的吸收不完全。结论:尽管样本的大小,这项研究已经表明,壳聚糖单独或与硫酸软骨素联合促进骨形成。壳聚糖/硫酸软骨素/胶原蛋白组合则呈阴性。
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引用次数: 1
Open reduction and internal fixation of mandibular left parasymphyseal fracture and conservative management of bilateral condylar fracture in a pillion rider- “Rules should be followed not ignored’ 下颌骨左侧副骨骺骨折切开复位内固定及双侧髁突骨折保守治疗——“规则不容忽视”
Pub Date : 2020-08-25 DOI: 10.31254/dentistry.2020.5207
S. Karthik, C. Surgeon, Oral, S. Kumaravel, K. Velavan, RN Mukundan, D. EvangelineCynthia, Rajprabha, C. Oral, Consultant Physician
Maxillofacial injuries sustained through Road traffic accidents (RTAs) is one of the leading causes of hospitalization in India. Numerous factors such as ever increasing amount of two wheelers, assault conditions, lack of safety measures such as helmets, seat belts and lack of strict implementation of such rules, prevailing socioeconomic, cultural and environmental factors results in a substantial number of facial fractures from RTAs. By 2020, RTA injuries will rise as the 6th major cause of death worldwide. One of the most commonly employed means to thwart such RTAs include the use of helmet, following speed limits, obeying stop signs and traffic signals. Among two wheelers, the use of Helmets plays a crucial role in protecting the cranial vault and potentially the facial skeleton if a full face helmet is used. 25% of the RTAs are caused due to two wheelers rather than four wheelers. Pillion rider, who ride passenger behind the rider on a two wheelers more suspectible to morbid injuries due to lack of safety measures like not wearing a helmet, improper sitting patterns especially by females in India. A study showed injuries such as contusion and skull fractures are common when riding pillion. Here we report a case of mandibular symphysis fracture along with bilateral subcondylar fracture with medial displacement of the fractured segment sustained via RTA while riding pillion.
道路交通事故造成的颌面损伤是印度住院治疗的主要原因之一。许多因素,如不断增加的两轮车数量,攻击条件,缺乏安全措施,如头盔,安全带和缺乏严格执行这些规则,普遍的社会经济,文化和环境因素,导致大量的rta面部骨折。到2020年,RTA伤害将上升为全球第六大死亡原因。阻止此类rta最常用的手段之一包括使用头盔,遵守速度限制,遵守停车标志和交通信号。在两轮车中,如果使用全面头盔,头盔在保护颅顶和潜在的面部骨骼方面起着至关重要的作用。25%的交通事故是由两轮车造成的,而不是四轮车。骑靠垫的人,骑两轮车把乘客放在后面,由于缺乏安全措施,比如不戴头盔,不正确的坐姿,尤其是印度女性,更容易受到病态的伤害。一项研究表明,骑靠垫时,脑震荡和颅骨骨折等伤害很常见。我们在此报告一例下颌骨联合骨折合并双侧髁下骨折,并在骑枕时通过RTA维持骨折段内侧移位。
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引用次数: 0
Radix entomolaris in permanent molars: Report of two cases 昆虫根在恒磨牙中的应用:附2例报告
Pub Date : 2020-08-25 DOI: 10.31254/dentistry.2020.5202
M.K. Das, Lopamoodra Das
Molars are frequently affected by caries among children and adolescents. An efficient endodontic intervention is crucial for their successful preservation in oral environment. Proper knowledge of the internal anatomy of a tooth is the stepping stones for successful treatment outcome in regular endodontic practice. Improper diagnosis with inaccurate treatment planning often result a failure in case of molars with extra roots leading to early tooth loss and development of inevitable functional, esthetic, and psychological problems. Though anatomical variation of tooth morphology is common, incidence of an extra lingual root distally in case of mandibular molars i.e. Radix entomolaris is relatively rare. In this article, two case reports of endodontic management of Radix entomolaris (RE) are presented.
在儿童和青少年中,磨牙经常受到龋齿的影响。有效的牙髓干预是牙髓在口腔环境中成功保存的关键。正确的牙齿内部解剖知识是牙髓治疗成功的基石。不正确的诊断和不准确的治疗计划往往导致臼齿多根的失败,导致早期牙齿脱落和不可避免的功能,美学和心理问题的发展。虽然牙齿形态的解剖变异是常见的,但在下颌磨牙的情况下,远端舌外根即昆虫根的发生率相对较少。本文报道两例虫根根根管治疗的病例。
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引用次数: 0
Critical Evaluation of the 2017 Classification of Periodontal and Peri-implant diseases and Conditions – An Update 2017年牙周和种植体周围疾病和状况分类的关键评估-更新
Pub Date : 2020-08-25 DOI: 10.31254/dentistry.2020.5214
Harsh R. Parikh, C. Agrawal, H. Parikh, S. Duseja
Periodontal disease is the multifactorial disease that leads to the destruction of the tooth-supporting structures. A classification system provides a framework that helps in diagnosis and assembles similar disease phenotypes in a more homogeneous form. Several classifications have been proposed by many authors. Till date, the American Academy of Periodontology (AAP) 1999 Classification was the most extensively used classification, which was designed to overcome the drawbacks and deficiencies of the 1989 classification. However, presence of some drawbacks has limited its use in routine clinical practice. So, the current classification has been developed in 2017 by AAP and the European Federation of Periodontology (EFP) to overcome the disadvantages of the 1999 classification. The 2017 classification is extremely extensive and more intricate than 1999 classification, which is useful to the overall dentist and periodontists to select the best treatment options for the patients. This review summarizes the newer classification, key changes from 1999 Classification/modification and disadvantages of the newer classification.
牙周病是一种多因素疾病,它会导致牙齿支撑结构的破坏。分类系统提供了一个框架,有助于诊断和以更均匀的形式组装相似的疾病表型。许多作者提出了几种分类。到目前为止,美国牙周病学会(AAP) 1999分类是使用最广泛的分类,该分类旨在克服1989分类的缺点和不足。然而,其存在的一些缺陷限制了其在常规临床实践中的应用。因此,目前的分类是由AAP和欧洲牙周病联合会(EFP)于2017年制定的,以克服1999年分类的缺点。2017年的分类比1999年的分类更加广泛和复杂,这对整体牙医和牙周病医生为患者选择最佳治疗方案很有帮助。本文综述了新分类、1999年分类/修改后的主要变化以及新分类的缺点。
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引用次数: 0
Case report of a large hemangioma of the parotid gland with multiple phleboliths and tonsilloliths 腮腺大血管瘤伴多发静脉及扁桃体结石1例报告
Pub Date : 2020-08-25 DOI: 10.31254/dentistry.2020.5203
Najwa Karam Genno, Pamela G. Genno, Riad El Solh Beirut Lebanon Dentofacial Orthopedics
Hemangiomas are benign vascular deformities characterized by an increased proliferation and turnover of endothelial cells. They account for the majority of parotid gland tumors in infants but are rare in adults. Changes in blood flow dynamics within hemangiomas can cause stasis, thrombus formation and phleboliths. Tonsilloliths are calcifications occurring primarily within the palatine tonsillar crypts. We report the case of a large hemangioma of the parotid gland with multiple phleboliths and tonsilloliths in an adult, highlighting the clini cal and imaging features on panoramic radiography, Cone Beam Computed Tomography (CBCT), cervical ultrasound, Magnetic Resonance Imaging (MRI) and Doppler imaging. A 20-year-old woman presented, complaining of a painless swelling below her right ear. Panoramic radiograph showed multiple randomly distributed round-to-oval radiopaque structures overlying the right mandibular ramus. CBCT revealed several radiopaque structures in the right palatine tonsillar crypts. Cervical ultrasound exposed a large heterogeneous and predominantly hypoechogenic mass in the right parotid gland. MRI displayed a well-defined lesion in the right parotid gland extending into the parapharyngeal pre-styloid space, hypointense on T1 and hyperintense on T2, containing several nodules. The diagnosis was: large hemangioma of the right parotid gland extending into the parapharyngeal pre-styloid space, with multiple phleboliths and tonsilloliths. Propranolol was delivered, with periodic follow-up on Doppler images, showing a hemangioma size reduction. Standard radiographs can detect tonsilloliths and phleboliths but additional imaging modalities disclose the exact diagnosis and location of calcifications and the diagnosis, structure and extent of the vascular lesion. Tonsilloliths and phleboliths should be considered in the differential diagnosis of radiopaque masses involving the mandibular ramus. Hemangioma with phleboliths should be considered in the differential diagnosis of parotid tumors when numerous intraglandular calcification nodules are detected on radiographs.
血管瘤是一种良性血管畸形,其特征是内皮细胞的增殖和周转增加。它们占婴儿腮腺肿瘤的大多数,但在成人中很少见。血管瘤内血流动力学的变化可引起瘀血、血栓形成和静脉栓塞。扁桃体结石是主要发生在腭扁桃体隐窝内的钙化。我们报告一例成人腮腺大血管瘤伴多发静脉和扁桃体结石的病例,强调其临床和影像学特征,包括全景x线摄影、锥形束计算机断层扫描(CBCT)、宫颈超声、磁共振成像(MRI)和多普勒成像。一名20岁女性,主诉右耳下方无痛性肿胀。全景x线片显示右侧下颌支上随机分布多个圆形至椭圆形的不透射线结构。CBCT显示右侧腭扁桃体隐窝若干不透射线结构。宫颈超音波显示右侧腮腺内有一个大而不均匀的低回声肿块。MRI示右侧腮腺清晰病灶,延伸至咽旁茎突前间隙,T1呈低信号,T2呈高信号,包含数个结节。诊断:右侧腮腺大血管瘤,延伸至咽旁茎突前间隙,伴多发静脉及扁桃体石。给予心得安,并定期随访多普勒图像,显示血管瘤大小缩小。标准x线片可以检测扁桃体结石和静脉结石,但附加的成像方式可以揭示钙化的确切诊断和位置,以及血管病变的诊断、结构和范围。扁桃体结石和静脉结石应考虑在鉴别诊断不透光肿块累及下颌支。当x线片上发现大量腺内钙化结节时,应考虑腮腺肿瘤的鉴别诊断。
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引用次数: 0
Infection control and management conventions for a dental health professional against a covid-19 pandemic virus 针对covid-19大流行病毒的牙科卫生专业人员感染控制和管理惯例
Pub Date : 2020-08-25 DOI: 10.31254/dentistry.2020.5213
Shweta V Annaldasula, Oral Mds, A. Rathore, Kreetika Aggarwal, Shivangi Rathore, C. Mds, Mumbai Maharashtra India Endodontics
The ongoing episode and outbreak of serious intense respiratory condition called as Covid-19 has caused health concerns affecting the entire world owing to the community spread pattern of infection. The infection caused by the virus manifests in nasopharyngeal and salivary secretions of affected patients causing pneumonia or severe acute respiratory disorder. The dental professionals are at the highest risk for transmission due to the possibility of aerosols produced by salivary droplets as well as face to face communication. These aerosols can be either inhaled or can contact the skin and has a tendency to accumulate on the surfaces in the dental clinics. The aim of article is to provide an insight over etiology, pathogenesis, screening modalities, patient education, infection control, research and essential knowledge about COVID19 and management protocols amongst the health care professionals and clinical practioners
由于感染的社区传播模式,被称为Covid-19的严重严重呼吸系统疾病的持续发作和爆发引起了影响全世界的健康问题。该病毒引起的感染表现在受感染患者的鼻咽和唾液分泌物中,引起肺炎或严重急性呼吸系统疾病。由于唾液飞沫产生的气溶胶以及面对面交流的可能性,牙科专业人员的传播风险最高。这些气溶胶可以被吸入,也可以接触皮肤,并有积聚在牙科诊所表面的趋势。本文旨在为卫生保健专业人员和临床从业人员提供有关covid - 19的病因、发病机制、筛查方式、患者教育、感染控制、研究和基本知识以及管理方案的见解
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引用次数: 0
Guided rescue technique for the replacement of failing implants while preserving the existing prosthetic construction – Part 1: proposed protocol with the ins and outs of the clinical challenge 在保留现有假体结构的同时替换失效假体的引导救援技术。第1部分:提出的临床挑战的详细方案
Pub Date : 2020-08-25 DOI: 10.31254/dentistry.2020.5209
M. Abbou, Founder, Franck Lasry
If the success rates in implantology display scores envied by many other medical and dental disciplines, the fact remains that the negative feeling is around 100% for the practitioner and for the patient in case of 'failure, especially when this failure occurs after prosthetic placement. The management of these situations rarely addresses the possible recovery of the prosthesis. This article proposes an original protocol making it possible to avoid having to redo the prosthesis following an implant loss and its replacement
如果种植成功率显示出许多其他医学和牙科学科羡慕的分数,那么事实仍然是,对于医生和患者来说,如果“失败”,特别是当这种失败发生在假体放置之后时,负面情绪约为100%。这些情况的处理很少涉及假体的可能恢复。本文提出了一种原始的方案,可以避免在植入物丢失和更换后重新做假体
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引用次数: 0
期刊
International Journal of Dentistry Research
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