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Systematizing mandibular reconstruction using the resin frame method 树脂框架法下颌骨重建的系统化研究
Pub Date : 2018-04-09 DOI: 10.5348/100029D01JH2018OA
J. Hayasaka, S. Sarukawa, H. Itoh, Y. Takai, M. Kusama, Y. Mori, A. Katsumata
Aims: Oral tumors are the most frequent diseases that lead to mandibular defects, but because they are so rare, it is difficult to obtain the necessary large capital investment to establish and introduce a mandibular reconstruction system. Therefore, we developed the Resin Frame method within the current facilities that objectively increases mandibular reproducibility without requiring advanced techniques. Methods: Subjects comprised 25 patients who underwent mandibular reconstruction by the resin frame method in the Department of Dentistry, Oral and Maxillofacial Surgery at Jichi Medical University Hospital between October 2013 and August 2015, and 25 patients who underwent the mandibular reconstruction by the conventional method between September 2007 and November 2011. All mandibles were reconstructed using fibula or iliac bones with a reconstruction plate. The computed tomography (CT) Digital Imaging and Communications in Medicine (DICOM) data before and after the operation were saved. Then, the layer function was used to fuse the pre- and postoperative CT images. Based on measured area, the concordance rate that is matching percentages between pre- and postoperative mandibles were calculated. We evaluated the difference between the concordance rate of the Resin Frame method and the conventional method of mandibular reconstruction. Results: Concordance rates for the resin frame method and conventional surgery were 75.09±6.09% and 67.39±13.44%, respectively, showing a significant difference (p=0.032, p lessthan 0.05). Conclusion: The resin frame method represents a mandibular reconstruction system that increases reproduction accuracy and can be implemented at current facilities using simple, objective techniques.
目的:口腔肿瘤是导致下颌骨缺损最常见的疾病,但由于其罕见,很难获得建立和引入下颌骨重建系统所需的大量资金投入。因此,我们开发了树脂框架方法在目前的设施客观上增加了下颌骨的可重复性,而不需要先进的技术。方法:选取2013年10月~ 2015年8月在济济医科大学附属医院口腔颌面外科采用树脂框架法进行下颌骨重建的患者25例,以及2007年9月~ 2011年11月采用常规方法进行下颌骨重建的患者25例。所有下颌骨均采用腓骨或髂骨重建钢板重建。保存手术前后的CT (Digital Imaging and Communications in Medicine)数据。然后,利用层函数对术前和术后CT图像进行融合。在测量面积的基础上,计算出前后下颌骨的一致性率,即匹配百分比。我们评估树脂框架法与常规下颌骨重建方法的一致性差异。结果:树脂框架法与常规手术的符合率分别为75.09±6.09%和67.39±13.44%,差异有统计学意义(p=0.032, p < 0.05)。结论:树脂框架方法代表了一种下颌骨重建系统,提高了复制精度,可以在现有设施中使用简单,客观的技术实现。
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引用次数: 1
Phytochemicals in pediatric dentistry 儿童牙科中的植物化学物质
Pub Date : 2017-12-29 DOI: 10.5348/D01-2018-28-ED-1
D. Viswanath
No Abstract
没有抽象的
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引用次数: 0
Health insurance status of female caregivers and its effect on the utilization of oral healthcare for children with HIV/AIDS in Nairobi, Kenya 肯尼亚内罗毕女性照顾者的健康保险状况及其对感染艾滋病毒/艾滋病儿童口腔保健利用的影响
Pub Date : 2017-10-14 DOI: 10.5348/D01-2017-27-OA-7
M. Atieno, Wandibba Simiyu
Aims: Dental caries is a public health concern in many developing nations like Kenya. Slum children often do not have access to oral health care, and their oral health-related quality of life (OHRQoL) remains largely un-researched topic in Kenya. The present study was designed to determine the prevalence and severity of dental caries and its impact on the OHRQoL of a cohort of slum-dwelling children in a Nairobi slum. Methods: This was a hospital-based mixed methods cross-sectional study carried out at the out-patient HIV-care clinics at Getrude Children’s hospital (GCH), Kenyatta National Hospital (KNH) and Mbagathi County and Referral Hospital (MCRH) in Nairobi City County, Kenya. The study involved 221 female caregivers of children with HIV/AIDS and their health workers at the HIV-care clinics. Results: More than two-thirds (68%) of the respondents did not have any form of health insurance to facilitate access to medical and/or dental healthcare. More than three quarters (76%) of those who had utilized oral healthcare services for their children paid from out-of-pocket (OOP) expenses. There was gross underutilization of the National Health Insurance Fund, NHIF, with only 18% of the respondents having been enrolled. Conclusion: Underutilization of social health insurance by caregivers, compounded by OOP spending for health services imposes limitations on the utilization of oral healthcare for children with HIV/AIDS.
目的:龋齿是肯尼亚等许多发展中国家的公共卫生问题。贫民窟儿童往往无法获得口腔保健,他们的口腔健康相关生活质量(OHRQoL)在肯尼亚基本上仍未得到研究。本研究旨在确定内罗毕贫民窟一群贫民窟儿童龋齿的患病率和严重程度及其对OHRQoL的影响。方法:这是一项以医院为基础的混合方法横断面研究,在肯尼亚内罗毕市县Getrude儿童医院(GCH)、肯雅塔国家医院(KNH)和姆巴加西县和转诊医院(MCRH)的艾滋病毒门诊诊所进行。这项研究涉及221名照顾感染艾滋病毒/艾滋病儿童的女性护理人员及其在艾滋病毒护理诊所的保健工作者。结果:超过三分之二(68%)的答复者没有任何形式的健康保险,以方便获得医疗和/或牙科保健。超过四分之三(76%)为子女使用口腔保健服务的人自费支付费用。国家健康保险基金的利用严重不足,只有18%的答复者参加了登记。结论:照顾者对社会健康保险的利用不足,加上保健服务的OOP支出,限制了艾滋病毒/艾滋病儿童对口腔保健的利用。
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引用次数: 1
Dental alterations in sickle cell anemia 镰状细胞性贫血的牙齿改变
Pub Date : 2017-05-31 DOI: 10.5348/D01-2017-23-RA-3
Antonio Fabrizio Nifosì, P. Castelló, Lorenzo Nifosì, G. Nifosí
The epidemiology of the dental disease in sickle cell anemia is not adequately described. The aim of this work is either the evaluation of literature on the topic, or to describe if the disease itself predisposes to a dental pathology, and eventually also if the latter can influence its course. We selected many cases and reviews in order to identify the dental diseases related to sickle cell anemia. Caries and periodontitis are not directly caused by disease. However, an inflammatory state caused by a dental infection can trigger or precipitate a sickle crisis. Malocclusion angle class II is particularly frequent, as a result of bone facial changes and/or related to muscle imbalance. Temporomandibular joint disorder is possible. Asymptomatic pulp necrosis is due to the sickling that causes vasocclusion within microcirculation of the dental pulp. Large population-based studies are needed in order to clarify the dental involvement in this disease. A strict collaboration between the dentist and the hematologist is essential.
镰状细胞性贫血中牙病的流行病学没有得到充分的描述。这项工作的目的是要么评价文献的主题,或描述如果疾病本身倾向于牙科病理,最终也如果后者可以影响其进程。我们选择了许多病例和综述,以确定与镰状细胞性贫血相关的牙病。龋齿和牙周炎不是由疾病直接引起的。然而,由牙齿感染引起的炎症状态可以触发或促成镰状危象。由于骨面改变和/或与肌肉失衡有关,II类错牙合尤为常见。可能有颞下颌关节紊乱。无症状牙髓坏死是由于镰状坏死导致牙髓微循环血管闭塞所致。需要大规模的以人群为基础的研究,以阐明该疾病与牙齿的关系。牙医和血液科医生之间的严格合作是必不可少的。
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引用次数: 0
Factors associated with knowledge and attitude to the use of dental floss at some private and public dental clinics in Lagos State 与拉各斯州一些私立和公立牙科诊所使用牙线的知识和态度相关的因素
Pub Date : 2016-03-08 DOI: 10.5348/D01-2016-15-OA-2
A. Oyapero, E. L.L., A. Osasuyi
Aims: Dental caries and periodontal diseases which are the two most prevalent oral diseases are dental biofilm dependent. This effect of dental plaque is particularly evident in the interproximal region. The aim of this study was to determine the factors that are associated with knowledge and positive attitude towards the use of dental floss at the Lagos State University Teaching Hospital, Ikeja, (LASUTH) and two private dental clinics in Ikeja and Magodo, Lagos State. Methods: This prospective descriptive study was conducted at the oral diagnosis clinic of LASUTH and at two private dental clinics in Lagos State. A structured interviewer administered questionnaire was used to obtain information on socio-demographic items and on the participant's perception regarding gum inflammation, their oral hygiene practices and their knowledge, attitude and practices related to flossing. Results: The study population included dental patients aged 22–68 years. Majority of the respondents in this present study had poor knowledge and attitude on the use of dental floss. Respondents attending the private clinics had significantly better knowledge on the practice of oral hygiene and the use of dental floss (p = 0.000) and they also had a more positive attitude even though the association was not significant. (p = 0.364) The study participants that had a good knowledge and positive attitude on dental floss usage and oral hygiene had lower mean OHI-S, GI and DMFT scores even though the association was not significant. Conclusion: This study demonstrated a poor level of knowledge and attitude to the use of dental floss among the respondents. Oral health care professionals should spend adequate time to educate their patients on the benefits of interproximal cleaning especially floss usage. They should also enhance the self-efficacy and knowledge of their patients about the benefits of interdental hygiene.
目的:龋病和牙周病是两种最常见的口腔疾病,它们都依赖于牙生物膜。牙菌斑的这种影响在近端间区域尤为明显。这项研究的目的是确定在拉各斯州Ikeja的拉各斯州立大学教学医院(LASUTH)和拉各斯州Ikeja和Magodo的两家私人牙科诊所对使用牙线的知识和积极态度相关的因素。方法:本前瞻性描述性研究在拉各斯州LASUTH口腔诊断诊所和两家私人牙科诊所进行。一份结构化的调查问卷用于获取社会人口统计项目的信息,以及参与者对牙龈炎症的看法,他们的口腔卫生习惯以及他们对牙线的知识、态度和实践。结果:研究人群包括22-68岁的牙科患者。在本研究中,大部分受访者对牙线的使用知识和态度较差。在私家诊所就诊的受访者对口腔卫生和牙线的使用有较好的认识(p = 0.000),对口腔卫生的态度也较积极(p = 0.000),但两者之间的关系并不显著。(p = 0.364)对牙线使用和口腔卫生有良好认知和积极态度的研究对象的OHI-S、GI和DMFT平均得分较低,但相关性不显著。结论:本研究表明,调查对象对使用牙线的知识和态度较差。口腔保健专业人员应该花足够的时间教育他们的病人近端间清洁的好处,特别是使用牙线。他们还应该提高患者的自我效能感和对牙间卫生益处的认识。
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引用次数: 1
Focal cemento-osseous dysplasia of mandibular jaw: A case report and literature review 下颌骨局灶性骨水泥发育不良1例并文献复习
Pub Date : 2016-01-05 DOI: 10.5348/D01-2015-13-CR-11
S. Abullais, Priyanka., Nitin Kudyar, G. Kapil, P. Shetty
Introduction: Focal cemento-osseous dysplasia is a rare disease entity characterized by replacement of healthy bone and tissue with cemento-osseous tissue. Etiology and pathogenesis for the lesion is unknown and these lesions are considered as reactive lesion in the periapical areas of the teeth. Case Report: A 52-year-old female reported to Yogita Dental College and Hospital with the chief complaint of throbbing intermittent pain and swelling in the lower left posterior region of the jaw since six months. Conclusion: The lesions are benign in nature and rarely cause complication. Most of the time lesion is detected accidently on the routine radiographs. Treatment involves long-term follow-up of the case unless until lesion becomes symptomatic.
局灶性骨水泥发育不良是一种罕见的疾病,其特征是健康的骨骼和组织被骨水泥-骨组织取代。病变的病因和发病机制尚不清楚,这些病变被认为是牙齿尖周区域的反应性病变。病例报告:一名52岁女性,报告至Yogita牙科学院和医院,主诉为搏动性间歇性疼痛和下颌后后部肿胀六个月。结论:本病为良性病变,并发症少。大多数情况下,病变是在常规x线片上偶然发现的。治疗包括对病例进行长期随访,直到病变出现症状。
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引用次数: 0
Root thickness evaluation of mandibular incisors 下颌切牙牙根厚度评价
Pub Date : 2015-12-05 DOI: 10.5348/D01-2015-12-OA-10
N. Akhlaghi, B. Dadresanfar, P. Mohebbi, M. Vatanpour, Shabnam Sohanian
Aims: Mandibular incisors are the smallest teeth in the mouth. They have thin roots with concavities and are very important for aesthetic and also for speaking. Due to their narrow internal anatomy, preparing the root canal and post space might be very difficult and endangers them for root wall perforation or fracture. The aim of this study was to measure the root thickness of mandibular incisors. Methods: Root wall thicknesses of eighty mandibular incisors were measured in four sections including the CEJ, 3 mm apical to the CEJ, 4 mm and one mm coronal to the apex and in buccal, lingual and proximal surfaces of concavity areas, using a stereomicroscope. Data were statistically analyzed by repeated measured ANOVA and paired t-test. Results: Buccal surface of the buccal canals and lingual surface of the lingual canals in double-canalled incisors had the greatest root thicknesses compare to the proximal surfaces. Root thickness of single-canalled root was more than of double-canalled ones. Proximal walls had the least root thicknesses in all the sections especially in section 4, at 1 mm from the apex, which was less than 1 mm. Conclusion: In order to avoid technical mishaps during root canal procedures, attention must be paid to the thin concavity proximal walls using anticurvature flaring and also in selection of proper size of master apical file.
目的:下颌门牙是口腔中最小的牙齿。它们的根很细,有凹陷,对审美和说话都很重要。由于其狭窄的内部解剖结构,准备根管和桩空间可能非常困难,并危及根壁穿孔或骨折。本研究的目的是测量下颌切牙的牙根厚度。方法:采用体视显微镜对80个下颌骨切牙的根壁厚度进行测量,分别测量了切牙牙尖侧3 mm、切牙尖侧3 mm、切牙冠侧4 mm、切牙尖侧1 mm及切牙颊面、舌面和切牙凹区近端4个切面的根壁厚度。资料采用重复测量方差分析和配对t检验进行统计学分析。结果:双管切牙的牙根厚度以颊管面和舌管面最大。单管根的根粗大于双管根。近壁的根厚在所有断面中最小,尤其是在第4断面,距离根尖1mm处,根厚小于1mm。结论:在根管治疗过程中,应注意采用反弯曲扩口法处理近端壁的薄凹,并选择合适大小的主尖锉,以避免技术事故的发生。
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引用次数: 0
Surgically-based methods to modify orthodontic tooth movement: A literature review 以手术为基础的矫正牙齿运动的方法:文献综述
Pub Date : 2015-10-08 DOI: 10.5348/D01-2015-8-OA-6
M. C. D. Llano-Pérula, A. Iglesias-Linares
Aim: Reducing treatment time in orthodontics is a matter of strong interest for clinicians and patients. Many procedures have been reported in literature in the last years intending to accelerate orthodontic tooth movement by modifying its biological substrate. Among them, surgical techniques are becoming increasingly popular. The aim of the present article is to review these surgical techniques, offering a clear idea of the scientific evidence available in literature and the possible implications of these techniques in the future. Methods: A literature search was performed in the databases MedLine and Scopus, including all article types focused on surgically-based methods to modify tooth movement in combination with orthodontic or orthopedic force. Results: Osteotomy, corticotomy and piezocision are the most representative of the so-called 'surgically facilitated orthodontic techniques (SFOTs)'. Corticotomy and piezocision share the same biological background (Regional acceleratory phenomena or RAP) while osteotomy is based on osteogenic distraction. A historical overview and a description of the techniques are included in the text. Conclusion: Although clinical results are promising, most of the articles concerning SFOTs are studies performed on animals or case reports. There is a need for evidence-based reports and standardized protocols in order to clarify the process behind tooth movement secondary to surgery, biologically speaking. Side effects of the surgeries and stability of the orthodontic treatment on mid to long-term are yet insufficiently reported.
目的:减少正畸治疗时间是临床医生和患者非常感兴趣的问题。在过去的几年中,文献中报道了许多程序,旨在通过修改其生物基质来加速正畸牙齿的运动。其中,外科技术越来越受欢迎。本文的目的是回顾这些手术技术,提供一个清晰的想法,科学证据在文献和这些技术在未来可能的影响。方法:在MedLine和Scopus数据库中进行文献检索,包括所有以手术为基础的方法,结合正畸或矫形力来改变牙齿运动的文章类型。结果:截骨术、皮质切开术和压片切开术是最具代表性的所谓“外科辅助正畸技术”。皮质切开术和压切术具有相同的生物学背景(区域加速现象或RAP),而截骨术基于成骨牵张。历史概述和技术的描述包括在文本中。结论:虽然临床结果是有希望的,但大多数关于SFOTs的文章都是在动物身上进行的研究或病例报告。从生物学角度讲,需要有基于证据的报告和标准化的协议来阐明手术后牙齿移动的过程。手术的副作用和正畸治疗的中长期稳定性报道尚不充分。
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引用次数: 2
A minimally invasive approach for aesthetic enhancement using indirect composite veneers: A case report 使用间接复合贴面的微创美容方法:1例报告
Pub Date : 2015-10-03 DOI: 10.5348/D01-2015-10-CR-8
Gufran Ali Syed, B. Sisodiya, A. Palekar, V. Mantri, Suruchi Sisodia
Introduction: Technique of composite veneers fabricated directly on a cast is easier and requires less clinical time and also the survival rates are statistically similar to ceramic veneers. Case Report: Composite veneers can be fabricated directly on a cast using the technique that have been described in this case report. Conclusion: Being inexpensive, less time consuming and having acceptable mechanical properties, indirect composite veneer is a good treatment option for discolored teeth.
简介:直接在铸件上制作复合贴面的技术更容易,需要更少的临床时间,并且存活率在统计上与陶瓷贴面相似。案例报告:复合贴面可以使用本案例报告中描述的技术直接在铸件上制造。结论:间接复合贴面价格低廉、耗时短、力学性能好,是治疗变色牙的良好选择。
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引用次数: 1
Vertical removal force and torsional resistance of a screwless Morse taper implant connection 无螺纹莫尔斯锥度植入物连接的垂直移除力和抗扭性
Pub Date : 2015-09-10 DOI: 10.5348/D01-2015-7-OA-5
A. Ozdiler, Enishan Ozcan, O. Kutay, G. Isık-Ozkol
Aims: The aim of this study was to measure the removal force and vertical tensile strength of a screwless Morse taper connection and compare it with screw retained connections. Methods: n order to measure the vertical tensile and torsional strength of the connection, a total of 12 Octo Implants (Tasarimmed, Istanbul, Turkey) 4 mm wide and 10 mm in length were used with a screwless Morse taper connection. Six repeated shots were applied to abutments for each standardized force: 300 grF, 500 grF, 800 grF, 1000 grF, 1400 grF, and 2500 grF. Measurements of vertical tensile strength and torsional strength were obtained four times for each group with a dynamometer and torque meter. Results: The results were analyzed using a 1-way ANOVA test. The intercept was found to be significantly different among the various strike forces for both vertical tensile strength and torsional strength (p lessthan .0001). A greater increase in the torsional and vertical strength was seen for 1400 grF strikes and was consequently entitled as a break point. Conclusion: Screwless Morse taper connection is predicted to be an adequate resistant to vertical removal and torsional forces.
目的:本研究的目的是测量无螺纹莫尔斯锥度连接的去除力和垂直拉伸强度,并将其与螺钉保留连接进行比较。方法:采用宽4mm、长10mm的Octo implant (Tasarimmed, Istanbul, Turkey)共12颗,采用无螺纹Morse锥度连接,测量连接体的垂直拉伸和扭转强度。每个标准力对基台进行6次重复射击:300 grF、500 grF、800 grF、1000 grF、1400 grF和2500 grF。用测力仪和扭矩计测量各组的垂直抗拉强度和扭转强度,分别测量四次。结果:结果采用单因素方差分析。在垂直拉伸强度和扭转强度方面,发现不同打击力之间的截距有显著差异(p小于0.0001)。在1400次grF撞击中,扭转强度和垂直强度的增加幅度更大,因此被称为断裂点。结论:无螺纹莫尔斯锥度连接具有良好的抗垂直移位和抗扭转能力。
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引用次数: 0
期刊
Edorium Journal of Dentistry
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