Implant Dentistry最新文献

英文中文

Prevalence of Maxillary Sinus Pathology Based on Cone-Beam Computed Tomography Evaluation of Multiethnicity Dental School Population. 基于锥束计算机断层评估的多种族牙科学校人群上颌窦病变患病率。

3区医学 Q1 Dentistry

Implant Dentistry

Pub Date : 2019-08-01 DOI: 10.1097/ID.0000000000000902

Yueh Ju Hsiao, Jie Yang, Randolph R Resnik, Jon B Suzuki

Objective: The goal of the study was to evaluate prevalence of maxillary sinus pathology among populations considered for possible sinus augmentation procedures for dental implants.

Study design: Eight hundred twenty-one cone-beam computed tomography (CBCT) scans were retrospectively evaluated for prevalence of maxillary sinus pathology. Scans were classified based on the type of sinus pathology detected. Categories of sinus findings were healthy, mucosal thickening larger than 3 mm, polypoidal mucosal thickening, partial opacification, complete opacification, and others. Age, sex, ethnicity, and dentition status were evaluated to determine associated relationships with the incidence of pathology.

Results: Sixty-two percent (62.79%) of scans presented with bilateral healthy sinuses and 37.21% of scans exhibited pathology. 73.38% of sinuses were classified as clinical healthy, 14.93% presented with mucosal thickening, 8.53% with polypoidal mucosal thickening, 2.13% with partial opacification, 0.66% with complete opacification, and 0.37% with a foreign body. Sex is found to be a significant factor with higher pathology incidence rates in male patients. Age is a significant factor with higher pathology incidence rates in older subjects. Dentition status and ethnicity did not have a significant association with pathology incidence rates.

Conclusions: The prevalence of maxillary sinus pathologies and associations with age, sex, ethnicity, and dentition status were obtained. Thirty-seven percent of scans would require further medical consultation before proceeding with maxillary sinus augmentation surgery for dental implants.

目的:本研究的目的是评估上颌窦病变在考虑进行种植体鼻窦增强手术的人群中的患病率。研究设计:回顾性评估821次锥束计算机断层扫描(CBCT)对上颌窦病变的患病率。根据检测到的鼻窦病理类型对扫描进行分类。鼻窦表现类别为健康、粘膜增厚大于3mm、息肉样粘膜增厚、部分混浊、完全混浊等。评估年龄、性别、种族和牙列状态以确定与病理发生率的相关关系。结果:62%(62.79%)的扫描显示双侧鼻窦健康，37.21%的扫描显示病理。73.38%的鼻窦临床健康，14.93%的鼻窦表现为黏膜增厚，8.53%的鼻窦表现为息肉样粘膜增厚，2.13%的鼻窦部分混浊，0.66%的鼻窦完全混浊，0.37%的鼻窦有异物。性别是男性患者病理发生率较高的重要因素。年龄是老年受试者病理发病率较高的重要因素。牙列状态和种族与病理发病率无显著相关性。结论:获得上颌窦病变的患病率及其与年龄、性别、种族和牙列状况的关系。在进行上颌窦隆胸植牙手术之前，37%的扫描结果需要进一步的医疗咨询。

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引用次数: 5

Feasibility of Assessing Maxillary and Mandibular Bone Mineral Density for Dental Implantation by Using Multidetector Computed Tomography. 多探测器计算机断层扫描评估种植牙上颌骨密度的可行性。

3区医学 Q1 Dentistry

Implant Dentistry

Pub Date : 2019-08-01 DOI: 10.1097/ID.0000000000000907

Tae-Hui Lee, Mi-Ae Jeong, Tae-Hyung Kim

Purpose: The purpose of this study was to evaluate the feasibility of measuring bone mineral density (BMD) of the maxillary and mandibular bones for dental implantation by using multidetector computed tomography (MDCT).

Materials and methods: We performed MDCT in 141 patients (78 women and 63 men) at the lumbar vertebrae and at the maxillary and mandibular bones, with a view to dental implantation, from July 2015 to June 2017. Quantitative CT (QCT) using MDCT was performed to obtain Hounsfield unit (HU) values for the maxillary and mandibular bones and to obtain T scores for the lumbar vertebrae. We statistically analyzed the relationships among HU values, and the correlations of QCT values with T scores and of T scores with HU values.

Results: There were statistically significant correlations among all these parameters.

Conclusions: QCT using MDCT of the maxillary and mandibular bones seems to be a feasible method for measuring BMD before dental implantation.

目的:探讨多探测器计算机断层扫描(MDCT)测量上颌骨和下颌骨骨密度(BMD)用于种植牙的可行性。材料和方法:2015年7月至2017年6月，我们对141例患者(女性78例，男性63例)在腰椎和上颌和下颌骨进行MDCT检查，目的是种植牙。采用MDCT进行定量CT (QCT)，获得上颌骨和下颌骨的Hounsfield单位(HU)值，并获得腰椎的T评分。我们统计分析了HU值之间的关系，以及QCT值与T评分、T评分与HU值的相关性。结果:各参数间的相关性有统计学意义。结论:利用上颌、下颌骨MDCT进行QCT测量是种植前测量骨密度的一种可行方法。

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引用次数: 1

Ridge Architecture Preservation Following Minimally Traumatic Exodontia Techniques and Guided Tissue Regeneration. 微创外植牙技术和引导组织再生后的脊结构保护。

3区医学 Q1 Dentistry

Implant Dentistry

Pub Date : 2019-08-01 DOI: 10.1097/ID.0000000000000886

Paula Gabriela Faciola Pessôa de Oliveira, Edmara Tatiely Pedroso Bergamo, Dimorvan Bordin, Leticia Arbex, Danielle Konrad, Luiz Fernando Gil, Rodrigo Neiva, Nick Tovar, Lukasz Witek, Paulo Guilherme Coelho

OBJECTIVETo compare hard-tissue healing after 3 exodontia approaches.MATERIALS AND METHODSPremolars of dogs were extracted: (1) flapless, (2) flap, and (3) flap + socket coverage with polytetrafluoroethylene (dPTFE) nonresorbable membrane (flap + dPTFE). Animals were euthanized at 1 and 4 weeks. Amount of bone formation within socket and socket total area were measured.RESULTSAmount of bone formation revealed significant difference between 1 and 4 weeks; however, there was no differences among groups. Socket total area decreased after 4 weeks, and the flap + dPTFE group showed significantly higher socket total area. As a function of time and group, flap + dPTFE 4 weeks presented similar socket total area values relative to flap + dPTFE at 1 week, and significantly higher socket total area than flapless and flap. The histological sections revealed almost no bone formation within socket after 1 week, which increased for all groups at 4 weeks.CONCLUSIONSocket coverage with polytetrafluoroethylene (dPTFE) membrane showed to effectively preserve bone architecture. Bone formation within sockets was not influenced by tooth extraction technique.

目的:比较三种外牙入路后硬组织愈合情况。材料和方法:取犬前磨牙:(1)无瓣，(2)瓣，(3)瓣+窝盖聚四氟乙烯(dPTFE)不可吸收膜(瓣+ dPTFE)。分别于第1周和第4周对动物实施安乐死。测量窝内成骨量及窝内总面积。结果:1周与4周骨形成量差异有统计学意义;然而，各组之间没有差异。4周后窝总面积减少，皮瓣+ dPTFE组窝总面积明显增加。作为时间和组的函数，皮瓣+ dPTFE 4周与皮瓣+ dPTFE 1周的窝总面积值相似，且窝总面积明显高于无皮瓣和皮瓣。组织学切片显示1周后窝内几乎没有骨形成，4周时各组骨形成增加。结论:用聚四氟乙烯(dPTFE)膜覆盖骨槽能有效保护骨结构。牙槽骨形成不受拔牙技术的影响。

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引用次数: 7

Device Legislation...... Now Tread Cautiously. 设备立法……现在小心行事。

3区医学 Q1 Dentistry

Implant Dentistry

Pub Date : 2019-08-01 DOI: 10.1097/ID.0000000000000926

Kenneth W M Judy

引用次数: 0

Effect of Steam Heat Sterilization on the Accuracy of 3D Printed Surgical Guides. 蒸汽热灭菌对3D打印手术指南准确性的影响。

3区医学 Q1 Dentistry

Implant Dentistry

Pub Date : 2019-08-01 DOI: 10.1097/ID.0000000000000908

H. Marei, Alaa Alshaia, Sundus Alarifi, N. Almasoud, A. Abdelhady

INTRODUCTIONSteam heat sterilization could be one of the factors that affects the dimensional accuracy of surgical guides, leading to an error during guided implant surgery.OBJECTIVEThe purpose of this study was to investigate the effect of steam heat sterilization on the dimensional changes of surgical guides.MATERIALS AND METHODSA total of 27 surgical guides, which were made by either Formlabs printer (Formlabs Inc., Somerville, MA) or Simplant (DENTSPLY Implants NV, Hasselt, Belgium), were scanned using an intraoral scanner before and after sterilization. The dimensional changes at the center of the implant sleeves were analyzed using the computer-aided design interactive software for 65 implant sites before and after steam heat sterilization at 121°C for 20 minutes.RESULTSThere was no significant difference between the mean x, y, and z axes of the center of the sleeves when measured before and after sterilization (P values were 0.37, 0.24, and 0.29, respectively). Nonparametric analysis showed no significant difference between the mean deviations of either surgical guide (P = 0.908).CONCLUSIONSteam heat sterilization has a nonsignificant effect on the dimensional changes of the tested surgical guides.

简介蒸汽热灭菌可能是影响手术引导器尺寸精度的因素之一，导致在引导植入手术过程中出现错误。目的探讨蒸汽热灭菌对手术导轨尺寸变化的影响。材料和方法在灭菌前后使用口内扫描仪扫描总共27个由Formlabs打印机（Formlabs股份有限公司，马萨诸塞州萨默维尔）或Simplant（DENTSPLAY Implants NV，Hasselt，Belgium）制造的手术指南。使用计算机辅助设计交互软件分析了65个植入部位在121°C蒸汽加热灭菌20分钟前后植入套管中心的尺寸变化。结果灭菌前后套管中心的平均x、y和z轴之间没有显著差异（P值分别为0.37、0.24和0.29）。非参数分析显示，两种手术引导器的平均偏差之间没有显著差异（P=0.908）。结论蒸汽热灭菌对测试的手术引导器尺寸变化没有显著影响。

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引用次数: 29

Using Digital Technique to Obtain the Ideal Soft Tissue Contour in Immediate Implants With Provisionalization. 利用数字技术获得即刻种植体理想软组织轮廓。

3区医学 Q1 Dentistry

Implant Dentistry

Pub Date : 2019-08-01 DOI: 10.1097/ID.0000000000000914

Rafael Amorim Cavalcanti de Siqueira, Bruno Leonardo Cabral, Glaudemir Reinaldo de Siqueira, Gustavo Mendonça, Hom-Lay Wang

This paper presents a newly developed digital technique to make a provisional crown that mimics the natural tooth during immediate implant placement. Basically, a digital technique results in a precise transfer tooth emergence profile for provisional restoration in immediate implant placement so that an ideal periimplant soft tissue contour can be maintained. The architecture of extraction socket is obtained digitally before the surgery that allows for implant planning by position of the implant as well as the emergence profile of provisional restoration. The introduction of this approach provides a versatile, precise, and predictable procedure leading to better esthetic outcomes.

本文介绍了一种新开发的数字技术，可以在立即种植时模拟自然牙的临时冠。基本上，数字技术的结果是精确的转移牙出现轮廓，用于立即种植体放置的临时修复，以便保持理想的种植体周围软组织轮廓。拔牙槽的结构在手术前以数字方式获得，允许通过种植体的位置以及临时修复的出现轮廓来规划种植体。这种方法的引入提供了一个通用的，精确的，可预测的过程，导致更好的美学结果。

引用次数: 7

Statements and Recommendations for Guided Bone Regeneration: Consensus Report of the Guided Bone Regeneration Symposium Held in Bologna, October 15 to 16, 2016. 引导骨再生的声明和建议:2016年10月15日至16日在博洛尼亚举行的引导骨再生研讨会的共识报告。

3区医学 Q1 Dentistry

Implant Dentistry

Pub Date : 2019-08-01 DOI: 10.1097/ID.0000000000000909

A. Cucchi, A. Chierico, F. Fontana, F. Mazzocco, C. Cinquegrana, F. Belleggia, Paolo Rossetti, C. Soardi, M. Todisco, Roberto Luongo, L. Signorini, M. Ronda, R. Pistilli

INTRODUCTIONIn the past 10 years, long-term studies have demonstrated that guided bone regeneration (GBR) is a successful and reliable technique for vertical and horizontal ridge augmentation, but strict and rigorous protocols must be adopted.MATERIAL AND METHODSBecause no reports have yet been published with statements and clinical recommendations for GBR, a closed meeting of all authors was organized to discuss this matter during a GBR symposium held in Bologna (Italy) in October 2016. The authors focused on the findings of systematic and narrative reviews, prepared before the meeting, covering aspects of the clinical management of GBR techniques. Successively, a discussion based on the scientific evidence and on the experts' opinions led to the formulation of statements, clinical recommendations, and implications for future research.RESULTSTo avoid complications and to optimize outcomes, the following factors should be considered by clinicians: patient selection; analysis of defect type; blood supply; antibiotic treatment; flap passivation; delayed implant placement; combination of autogenous bone and xenograft or allograft; rigorous fixation of membranes; removal after 6 to 9 months; analysis of complications; soft-tissue management; and high care in scarred sites and in esthetic areas.CONCLUSIONSThe present consensus report reviewed the scientific evidence and provided specific guidelines and recommendations for clinical practice and the different approaches to GBR techniques to ensure surgical success and predictable outcomes.

在过去的10年里，长期的研究表明，引导骨再生(GBR)是一种成功和可靠的技术，用于垂直和水平脊增强，但必须采用严格和严格的协议。材料和方法由于尚未发表关于GBR的声明和临床建议的报告，因此于2016年10月在意大利博洛尼亚举行的GBR研讨会上组织了一次所有作者的闭门会议来讨论这一问题。作者着重于会议前准备的系统和叙述性综述的发现，涵盖了GBR技术的临床管理方面。随后，基于科学证据和专家意见的讨论导致了声明的制定、临床建议和对未来研究的影响。结果为避免并发症的发生，优化治疗效果，临床医生应考虑以下因素:患者的选择;缺陷类型分析;血液供应;抗生素治疗;皮瓣钝化;延迟植入;自体骨与异种或同种异体骨的结合;膜的严格固定;6至9个月后移除;并发症分析;软组织管理;在伤痕累累的地方和美观的地方得到高度的护理。结论本共识报告回顾了科学证据，为临床实践和GBR技术的不同方法提供了具体的指导和建议，以确保手术成功和可预测的结果。

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引用次数: 27

Fracture of Zirconia Abutments in Implant Treatments: A Systematic Review. 氧化锆基台在种植体治疗中的断裂:系统综述。

3区医学 Q1 Dentistry

Implant Dentistry

Pub Date : 2019-08-01 DOI: 10.1097/ID.0000000000000900

Mingbao Gou, Helin Chen, Min Fu, Hang Wang

PURPOSEThe purpose of this systematic review was to identify and summarize clinical studies related to the fracture of zirconia abutments in implant treatments.MATERIAL AND METHODSMedline, Embase, and Cochrane library searches were performed and complemented by manual searches from database inception to February 11, 2018, for title and abstract analysis.RESULTSInitially, 645 articles were obtained through database searches. Fifty-three articles were selected for full-text analysis, and 15 studies met the inclusion criteria. The selected studies were analyzed regarding fracture rate, abutment-implant connection, time point of fracture, location of critical crack, causes, managements, and preventive measures with respect to zirconia abutment fracture.CONCLUSIONSLower fracture rates were reported for internal connection with metal component (2-piece) zirconia abutments compared with external and internal full-zirconia connection (one-piece) zirconia abutments. Overpreparation and overload should be avoided in case of zirconia abutments.

目的：本系统综述的目的是确定和总结与种植体治疗中氧化锆基牙骨折相关的临床研究。材料和方法从数据库创建到2018年2月11日，对Medline、Embase和Cochrane图书馆进行了检索，并辅以手动检索，以进行标题和摘要分析。结果通过数据库检索，初步获得645篇文章。选择53篇文章进行全文分析，15项研究符合纳入标准。分析了氧化锆基牙骨折的发生率、基牙-种植体连接、骨折时间点、临界裂纹位置、原因、处理和预防措施。结论：与外部和内部全氧化锆连接（一体式）氧化锆基牙相比，金属构件（两件式）氧化镁基牙的内部连接的断裂率较低。在使用氧化锆桥台的情况下，应避免过度修复和过载。

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引用次数: 11

The Sinus Bone Graft— Third Edition 2019 鼻窦骨移植术——2019年第三版

3区医学 Q1 Dentistry

Implant Dentistry

Pub Date : 2019-08-01 DOI: 10.1097/ID.0000000000000924

R. Kraut

引用次数: 0

Evaluation of Risk Parameters in Bone Regeneration Using a Customized Titanium Mesh: Results of a Clinical Study. 使用定制钛网骨再生的风险参数评估:临床研究的结果。

3区医学 Q1 Dentistry

Implant Dentistry

Pub Date : 2019-08-01 DOI: 10.1097/ID.0000000000000933

Amely Hartmann, H. Hildebrandt, J. Schmohl, P. Kämmerer

PURPOSEThe aim of the study was an evaluation of risk factors for an innovative bone regeneration technique using a customized titanium mesh that was tested in a clinical setting.MATERIALS AND METHODSThis retrospective study included 65 patients with 70 grafting procedures of osseous defects of the jaws with a customized titanium mesh together with Advanced- and Injectable-Platelet-Rich Fibrin (A- and I-PRF), resorbable membranes, and bone grafting materials. Exposures of the meshes and grafting outcome were analyzed according to a novel classification as (a) punctual and (b) tooth width or complete exposure of the mesh (c). No exposure was stated as (d).RESULTSIn 37% of cases, exposures of the meshes occurred that were significantly associated with loss of grafted material (P < 0.001). Tobacco abuse (P = 0.032) and grafting procedures together with simultaneous sinus floor elevation techniques (P = 0.001) were found to be risk factors for success of the grafted material. Implant placement was not possible in 2 cases only.CONCLUSIONThe results of this study verified the treatment of large defects with a customized titanium mesh as a useful protocol with a predictable outcome, even in cases of dehiscences.

目的:本研究的目的是评估一种使用定制钛网的创新骨再生技术的风险因素，该技术已在临床环境中进行了测试。材料和方法本回顾性研究包括65例70例颌骨骨缺损的移植手术，采用定制钛网结合高级和注射富血小板纤维蛋白(a -和I-PRF)，可吸收膜和植骨材料。根据一种新的分类(a)准时暴露和(b)牙宽或完全暴露(c)来分析网片的暴露和移植结果。(d)不暴露。结果在37%的病例中，网片的暴露与移植材料的丢失显著相关(P < 0.001)。烟草滥用(P = 0.032)和移植手术以及同时窦底抬高技术(P = 0.001)被发现是移植材料成功的危险因素。只有2例患者无法植入种植体。结论本研究的结果验证了使用定制钛网治疗大缺陷是一种有用的方案，即使在开裂的情况下，结果也是可预测的。

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引用次数: 26

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