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Rehabilitation of partial edentulous patient with tooth supported over denture retained with metal coping-A case report 局部无牙义齿金属套筒固位修复1例
Pub Date : 2022-01-15 DOI: 10.18231/j.ijmi.2021.035
Poonam Wakure, M. Alam, Manu Rathee, Sanju Malik
Overdenture treatment is a removable dental prosthesis that covers or rest on one or more remaining natural teeth, roots of natural teeth, or dental implants. The conventional tooth-retained overdenture is a simple and cost-effective treatment than the implant overdenture. This treatment is not a new concept and practitioners have successfully employed existing tooth structures to assist with complete denture treatment for more than a century. Furthermore, the use of copings on the remaining teeth enhances the retention of the denture. This clinical report describes a method of fabricating a tooth supported overdenture retained with custom made metal coping.
覆盖假牙治疗是一种可移动的牙齿修复体,覆盖或停留在一颗或多颗剩余的天然牙齿,天然牙齿的根部或牙种植体上。与种植覆盖义齿相比,传统的固牙覆盖义齿是一种简单而经济的治疗方法。这种治疗并不是一个新概念,一个多世纪以来,从业者已经成功地利用现有的牙齿结构来辅助全口义齿治疗。此外,在剩余的牙齿上使用复盖物可以增强义齿的固位。本临床报告描述了一种制作牙托覆盖义齿的方法,该义齿保留了定制的金属冠。
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引用次数: 1
Artifacts — A hitch in CBCT 伪影——CBCT中的一个障碍
Pub Date : 2022-01-15 DOI: 10.18231/j.ijmi.2021.030
R. Castelino, Praveenkumar Ramdurg
Cone beam computed tomography (CBCT) has gained an unmissable importance nowadays because of its accuracy in detecting the pathologies of head and neck region. It has become part and parcel as a salient diagnostic aid in dentistry. But everything in this world has two faces of the coin. Similarly, CBCT has a small hitch in it that is “Artifacts”. Artifacts are discrepancies between the reconstructed visual image and the actual content of the subject which degrade the quality of CBCT images, making them diagnostically unusable. This article directs on the different kinds of artifacts and the reasons behind it.
圆锥束ct (Cone beam computed tomography, CBCT)由于其在检测头颈部病变方面的准确性而获得了不可忽视的重要性。它已成为一个重要的组成部分,作为一个突出的诊断辅助牙科。但是这个世界上的任何事情都有两面性。同样,CBCT也有一个小问题,那就是“工件”。伪影是重建的视觉图像与主体的实际内容之间的差异,它降低了CBCT图像的质量,使其在诊断上不可用。本文将介绍不同种类的工件及其背后的原因。
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引用次数: 0
Comparative evaluation of canal transportation and centering ability between 4% and 6% rotary files using cone beam computed tomography — An invitro study 使用锥形束计算机断层扫描对4%和6%旋转锉的运河运输和定心能力的比较评价-一项体外研究
Pub Date : 2022-01-15 DOI: 10.18231/j.ijmi.2021.028
P. Hemalatha, V. Sanjana, Prabeesh Padmanabhan, M. Muthalagu, M. S. Shahul Hameed
Aim of the study was to evaluate the canal transportation and centering ability of 4% and 6% rotary systems by cone beam computed tomography (CBCT).: Sixty permanent mandibular first molar mesio-buccal canals were chosen and divided into two groups (n=30) according to the bio mechanical preparation method used: Vortex blue and XP Endo Shaper. Following after placed on a customized wax sheet substrate, the samples were scanned using CBCT and then subjected to instrumentation according to the group selected. Then post instrumentation CBCT was taken. Slices from the axial slice were obtained at 3 mm, 6 mm, and 9 mm from the root apex, corresponding to the apical, middle, and coronal thirds, respectively, from both exposures. The results showed that there were no statistically significant differences in canal centering and transportation between both the groups. However vortex blue group showed less transportation and less amount of untouched dentin. It was concluded that " 6% taper group though having higher taper showed better centering ability and less amount ofuntouched dentin and 4% taper file group thoughan adaptive core technology showed more transportation because of its non-uniform expansion to thermal changes.
本研究的目的是通过锥形束计算机断层扫描(CBCT)评估4%和6%旋转系统的根管运输和定心能力。选择60根永久下颌第一磨牙中颊根管,按生物机械制备方法分为两组(n=30): Vortex blue组和XP Endo Shaper组。将样品放置在定制的蜡片基板上后,使用CBCT扫描样品,然后根据选择的组进行仪器检测。然后进行仪器后CBCT检查。轴向切片分别在离根尖3mm、6mm和9mm处获得,分别对应于两种暴露的根尖、中间和冠状三分之一。结果显示,两组患者的根管定心和移动无统计学差异。漩涡蓝组牙本质运输较少,未接触牙本质数量较少。结果表明:“6%锥度组虽然锥度较高,但其定心能力较好,未接触牙本质的数量较少;4%锥度锉组虽然自适应核心技术对热变化的不均匀膨胀,但其输运较多。”
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引用次数: 0
Liquid biopsy as a diagnostic and prognostic tool — A systematic review 液体活检作为诊断和预后工具的系统综述
Pub Date : 2022-01-15 DOI: 10.18231/j.ijmi.2021.031
Jaydeepa Basak, Syeda Arshiya Ara
Liquid biopsy refers to a non-invasive technique of obtaining body fluid in order to analyse circulating biomarkers indicative of carcinomatous diseases. The characterization of these liquid biomarkers help in diagnosis and to choose the therapeutic strategy for each different case. Oral and oropharyngeal cancers are the largest group of those cancers which fall into the head and neck cancer category. Common names for it include mouth cancer, tongue cancer, tonsil cancer, and throat cancer. This systematic review summarizes 11years (2009 -2020) studies done on liquid biopsy in oral and head and neck carcinoma from electronic search engines such as PUBMED, MEDLINE, GOOGLE J-GATE to get the overview of clinical significance of circulating biomarkers (CTCs, ctDNA, Exosomes, miRNA, lncRNAs, Cytokeratin 20mRNA) as diagnostic and prognostic tool. The impact of liquid biopsy in clinical settings is still limited thus allowing further studies in a bigger perspective to discover the best scenario for its application.
液体活检是指一种获取体液以分析指示癌性疾病的循环生物标志物的非侵入性技术。这些液体生物标志物的特征有助于诊断和选择每个不同病例的治疗策略。口腔癌和口咽癌是头颈癌类别中最大的一类癌症。它的常见名称包括口腔癌、舌癌、扁桃体癌和咽喉癌。本系统综述从PUBMED、MEDLINE、GOOGLE J-GATE等电子搜索引擎中总结了11年(2009 -2020)口腔癌和头颈部癌液体活检的研究,概述了循环生物标志物(ctc、ctDNA、外泌体、miRNA、lncRNAs、Cytokeratin 20mRNA)作为诊断和预后工具的临床意义。液体活检在临床中的影响仍然有限,因此可以从更大的角度进行进一步的研究,以发现其应用的最佳方案。
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引用次数: 0
A cross-sectional analysis of digital panoramic radiographs for the evaluation of elongated styloid process in central Kerala population 对喀拉拉邦中部人口中细长茎突评价的数字全景x线照片的横断面分析
Pub Date : 2022-01-15 DOI: 10.18231/j.ijmi.2021.029
Raina Susan Reji, S. Padiyath, A. Vijayan, Anju Elizabeth Thomas, Sonia Susan Philip
This study aims to investigate the prevalence, morphology and elongation pattern of elongated styloid process in the population of Central Kerala and its relation to age and gender. ` 500 digital panoramic radiographs were collected from the archives of Department of Oral Medicine & Radiology, Mar Baselios Dental College taken during 2017-2020. Only those radiographs of patients within age group of 20-60 years and showed styloid processes of both sides with no pathologies in the required structures were included in the study. Radiographs with magnification and positioning errors were excluded. The collected data was entered in an Excel spreadsheet and analyzed using statistical analysis software-SPSS 16.0. The data was analyzed using chi square test and one way ANOVA. The average length of right and left styloid processes were 25.61±6.25mm & 25.88±6.67 mm respectively. The study showed that there is a progression in the length of right styloid process with advancing age. In this study females had a longer styloid process compared to males. A predominance of type I elongation is seen in both right and left sides.: The best protection is early detection. Presence of elongated styloid process is an incidental radiographic finding. However adequate and prompt diagnosis can lead to elimination of associated complications. This study focuses on detection of elongated styloid processes and comparison of length and identification of elongation patterns among right and left sides. These parameters and patterns may help the clinicians to distinguish between normal and elongated styloid processes.
本研究旨在调查喀拉拉邦中部人口中细长茎突的患病率、形态和伸长模式及其与年龄和性别的关系。本文收集了2017-2020年马尔巴塞利奥斯牙科学院口腔医学与放射科档案中的500张数字全景x线片。只有年龄在20-60岁之间且显示双侧茎突且所需结构无病变的患者的x线片纳入研究。排除有放大和定位误差的x线片。收集到的数据用Excel表格录入,使用spss 16.0统计分析软件进行分析。数据分析采用卡方检验和单因素方差分析。左右茎突平均长度分别为25.61±6.25mm和25.88±6.67 mm。研究表明,右茎突长度随年龄的增长而增加。在这项研究中,雌性的茎突比雄性长。在左右两侧均可见I型延伸的优势。最好的保护是早发现。细长茎突的存在是偶然的x线摄影发现。然而,充分和及时的诊断可导致消除相关并发症。本研究的重点是细长茎突的检测和长度的比较,并确定了左右两侧的伸长模式。这些参数和模式可以帮助临床医生区分正常和延长茎突。
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引用次数: 0
Diagnostic imaging of a huge salivary gland calculi 巨大唾液腺结石的影像学诊断
Pub Date : 2022-01-15 DOI: 10.18231/j.ijmi.2021.032
Renju Jose, Beena Verma, P. Nair, K. Santhosh Kumar
A 30 year old female patient reported to the Department with a swelling and mild discomfort in the right check region for two weeks. Clinical examination and three-dimensional computed tomography images revealed submandibular calculi on the right side. Early diagnosis by correlating clinical and imaging features is paramount in the management of such patients. Importance of diagnostic imaging in the diagnosis of submandibular gland calculi
一名30岁女性患者以右侧检查区肿胀和轻度不适两周向科室报告。临床检查和三维计算机断层扫描显示右侧下颌下结石。早期诊断通过相关的临床和影像学特征是最重要的在这类患者的管理。影像学诊断在颌下腺结石诊断中的重要性
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引用次数: 0
Mandibular first molar with radix entomolaris: A case report 下颌第一磨牙伴虫根1例
Pub Date : 2022-01-15 DOI: 10.18231/j.ijmi.2021.033
A. Kamboj, S. Chowdhry, S. Chopra, N. Sinha, Atul Bali, G. Kochar
Anatomic variations of mandibular molars are documented in literature. Variations in the anatomy are not appreciated by a great number of general dental practitioners. One such variation is occurrence of radix entomolaris, a supernumerary root occurring on the disto-lingual aspect of mandibular molars. This anomaly is rarely known to occur in the Indian population. Literature has also shown that the knowledge about the variations in the distal root anatomy in mandibular molars is not commonly known. This case reports the occurrence of radix entomolaris in mandibular first molar with three roots and four root canals. The case report discusses the frequency of occurrence, diagnostic means and endodontic management of radix entomolaris.
文献记载了下颌磨牙的解剖变异。解剖结构的变化不为许多普通牙科医生所赏识。其中一种变异是昆虫根的出现,这是一种在下颌磨牙的远舌侧发生的多生根。这种异常很少发生在印度人群中。文献也表明,关于下颌磨牙远端根解剖学变异的知识并不普遍。本病例报告了在下颌第一磨牙有三根和四根管的昆虫根的发生。病例报告讨论了虫根的发生频率、诊断方法和根管治疗。
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引用次数: 1
Assessment of temporomandibular joint morphology and mandibular length in various skeletal malocclusions- A prospective CBCT study 评估各种骨骼错颌的颞下颌关节形态和下颌长度-一项前瞻性CBCT研究
Pub Date : 2022-01-15 DOI: 10.18231/j.ijmi.2021.027
K. S. Premkumar, N. Kurunji kumaran, K. Prabhusankar, S. Sumalatha, N. Narendran
Temporomandibular joint (TMJ) is a complex structure which may be loaded differently in every individual leading to chances of differential condyle and fossa patterns. The aim of this study was to assess the changes in mandibular length, condyle and glenoid fossa in individuals with various skeletal malocclusions. This study was carried out with CBCT images of 45 patients divided into three groups, comprising of 15 patients in each group within the age group of 18-25years having Class I, Class II and Class III skeletal patterns respectively. Images were analyzed for the mandibular length, condylar and glenoid fossa shape variations. The measurements showed that GroupIII had significantly larger values of condylar width, depth, height and volume than other groups(P<0.05). Superior joint space was significantly lesser in Group III (P< 0.001), whereas anterior joint space was significantly lesser in Group III and II than Group I (P <0.001 &<0.05 respectively). The posterior joint space was found to be larger in Group II than Group I and III (P < 0.001 &<0.005 respectively). Mandibular length was significantly increased in Group III (P<0.001) and reduced in Group II(P<0.05). Significant differences of mandibular length, condylar width, height, length, condylar volume and joint spaces among the three sagittal groups were noted and hence can be concluded that TMJ morphology differed according to the difference in sagittal relationship of maxilla and mandible. Still, larger sample size is needed to study along with the soft tissue considerations in future.
颞下颌关节(TMJ)是一个复杂的结构,可能在每个人不同的负荷导致不同的髁和窝模式的机会。本研究的目的是评估不同骨骼畸形患者下颌长度、髁突和盂窝的变化。本研究将45例患者的CBCT图像分为三组,每组15例患者,年龄在18-25岁,分别为I类、II类和III类骨骼模式。分析下颌骨长度、髁突和盂窝形状的变化。测量结果显示,GroupIII组的髁突宽度、深度、高度和体积均显著高于其他组(P<0.05)。III组上关节间隙明显小于I组(P< 0.001),而III组和II组前关节间隙明显小于I组(P< 0.001和<0.05)。II组后关节间隙明显大于I组和III组(P < 0.001和<0.005)。III组下颌骨长度显著增加(P<0.001), II组下颌骨长度显著减少(P<0.05)。下颌长度、髁突宽度、高度、长度、髁突体积和关节间隙在3个矢状面组间存在显著差异,因此可以根据上下颌矢状面关系的不同得出TMJ形态不同的结论。尽管如此,未来仍需要更大的样本量以及对软组织的考虑来进行研究。
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引用次数: 0
Accessory tongue — A case report 附舌-个案报告
Pub Date : 2022-01-15 DOI: 10.18231/j.ijmi.2021.034
Manjima Sasidharan
Congenital anomalies of tongue happen as a result of disturbances in the embryological development of tongue which starts at fourth month of intra uterine life. Anomalies of tongue are very common and it appears as isolated lesion or as part of any syndrome. Accessory tongue is one of the rarest developmental disorders of tongue. Here is the case report of a non-syndromic accessory tongue in female patient
舌头的先天性异常是由于舌头的胚胎发育紊乱,开始于子宫内生活的第四个月。舌头异常是非常常见的,它表现为孤立的病变或作为任何综合征的一部分。副舌是一种罕见的舌头发育障碍。本文报告一例无证副舌的女性患者
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引用次数: 0
Prevalence and pattern of oral and maxillofacial trauma in Chhattisgarh- A retrospective study 恰蒂斯加尔邦口腔颌面外伤的患病率和模式-一项回顾性研究
Pub Date : 2021-10-15 DOI: 10.18231/j.ijmi.2021.024
Sushmita Batra, Surabhi Singhai, Pramod Krishna B, Rajinder P. Singh, S. Soni
Maxillofacial trauma is any physical trauma to the facial region, commonly encountered by maxillofacial surgeons, and is often associated with high morbidity and so constitute quite a significant portion of the workload of the oral and maxillofacial surgeon. Maxillofacial injuries can occur as an isolated injury or may be associated with multiple injuries in other parts of the body. To assess the patterns, etiology, and treatment modalities of maxillofacial trauma in a teaching hospital in central India, over a 12-year period. Patients with maxillofacial trauma were identified using the department database and clinical records. 264 patients were identified with maxillofacial trauma in the department of oral and maxillofacial surgery between January 2006 and December 2018. The study showed that there was a male preponderance in all age groups over female. Of the 264 patients with maxillofacial injuries, 83,33% had isolated lower face (mandibular) fractures, followed by midface fractures (10.60%) and panfacial fractures (6.06%). Road traffic accidents (87.12%) were the most common form of etiology for trauma followed by assaults (10.98%). Most trauma were treated with open reduction internal fixation (89%) than closed reduction (11%). The etiology and pattern of maxillofacial injuries reflect the trauma patterns within the community and can thus provide a guide to help design programs toward prevention and treatment.
颌面部创伤是颌面部外科医生经常遇到的面部区域的任何物理创伤,通常与高发病率相关,因此构成了口腔颌面外科医生工作量的相当大的一部分。颌面部损伤可以作为孤立的损伤发生,也可能与身体其他部位的多重损伤有关。评估印度中部一家教学医院12年来颌面外伤的模式、病因学和治疗方式。使用科室数据库和临床记录对颌面部外伤患者进行鉴定。2006年1月至2018年12月,在口腔颌面外科确诊了264例颌面部外伤患者。研究表明,在所有年龄组中,男性都比女性多。264例颌面部损伤患者中,孤立性下面部(下颌)骨折占83.33%,其次为中面部骨折(10.60%)和全面部骨折(6.06%)。道路交通事故(87.12%)是创伤最常见的病因,其次是袭击(10.98%)。大多数外伤采用切开复位内固定治疗(89%),而闭合复位内固定治疗(11%)。颌面部损伤的病因和模式反映了社区内的创伤模式,因此可以为帮助设计预防和治疗方案提供指导。
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引用次数: 0
期刊
IP International Journal of Maxillofacial Imaging
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