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IF 3.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-10-11 DOI: 10.1111/cid.13407
Ruikun Li, Jie Zhu, Shuo Wang, Xueyuan Li, Songhang Li

The cover image is based on the article Effects of sterilization and disinfection methods on digitally designed surgical implant guide accuracy: An in vitro study by Ruikun Li et al., https://doi.org/10.1111/cid.13350.

封面图片来源于文章《灭菌和消毒方法对数字化设计的外科植入物导板精确度的影响》,作者为 Ruikun Li 等人,:李瑞坤等人的体外研究,https://doi.org/10.1111/cid.13350.
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引用次数: 0
A transcrestal sinus floor elevation strategy based on a haptic robot system: An in vitro study 基于触觉机器人系统的经骨窦底提升策略:体外研究
IF 3.6 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-09-13 DOI: 10.1111/cid.13384
Shimin Yu, Yulan Wang, Yunxiao Wang, Richard J. Miron, Qi Yan, Yufeng Zhang
ObjectivesTo reveal the force profiles recorded by haptic autonomous robotic force feedback during the transcrestal sinus floor elevation (TSFE) process, providing a reference for the surgery strategy during TSFE.Materials and methodsA total of 42 maxillary sinus models with different angles of the sinus floor (30°, 40°, 50°, 60°, 70°, 80°, and 90°, compared to vertical plane) were 3D printed. Implant site preparation was performed using a robotic system, and the total force (Ft) and axial force along the drill (Fz) during the surgery were recorded by the haptic robotic arm. The actual initial breakthrough point (drill contacting sinus floor) and complete breakthrough point (drill penetrating the sinus floor) were defined visually (the actual IBP and the actual CBP). The theoretical initial breakthrough point (the theoretical IBP) and the theoretical complete breakthrough point (the theoretical CBP) defined by the robot‐guided system and the CBCT were determined by real‐time force feedback and imaging distance measurement, respectively. The distance from the bottom of the resin model to the actual IBP and the actual CBP was defined as Di and Dt, respectively.ResultsThe difference in Fz began to increase significantly at 70°, while the difference in Ft became significant at 60°. When the angle was greater than 70°, there was no significant difference in the discrepancy between the actual and theoretical perforation points. Compared to judging the breakthrough point by CBCT, real‐time force feedback TSFE under robotic surgery achieved more accurate initial breakthrough point detection.ConclusionsThe smaller the angle, the larger the breakthrough force for the drill. The real‐time force feedback of haptic robotic system during TSFE could provide reliable reference for dentists. More clinical studies are needed to further validate the application of robotic surgery assisted TSFE.
材料和方法 三维打印了42个上颌窦模型,这些模型的窦底角度各不相同(与垂直面相比,分别为30°、40°、50°、60°、70°、80°和90°)。种植部位的准备工作由机器人系统完成,手术过程中的总力(Ft)和沿钻头的轴向力(Fz)由触觉机器人手臂记录。实际初始突破点(钻头接触到窦底)和完全突破点(钻头穿透窦底)由视觉定义(实际 IBP 和实际 CBP)。机器人引导系统和 CBCT 通过实时力反馈和成像距离测量分别确定了理论初始突破点(理论 IBP)和理论完全突破点(理论 CBP)。从树脂模型底部到实际 IBP 和实际 CBP 的距离分别定义为 Di 和 Dt。当角度大于 70° 时,实际穿孔点和理论穿孔点的差异没有明显差异。结论 角度越小,钻头的突破力越大。在 TSFE 过程中,触觉机器人系统的实时力反馈可为牙科医生提供可靠的参考。要进一步验证机器人手术辅助 TSFE 的应用,还需要更多的临床研究。
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引用次数: 0
Biocompatibility and dimensional stability through the use of 3D‐printed scaffolds made by polycaprolactone and bioglass‐7: An in vitro and in vivo study 使用聚己内酯和生物玻璃-7 制成的 3D 打印支架的生物相容性和尺寸稳定性:体外和体内研究
IF 3.6 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-09-11 DOI: 10.1111/cid.13378
Ho‐Kyung Lim, In‐Seok Song, Won‐Cheul Choi, Young‐Jun Choi, Eun‐young Kim, Thi Hong Tham Phan, Ui‐Lyong Lee
PurposeThis experiment aimed to observe the differences in biological properties by producing BGS‐7 + PCL scaffolds with different weight fractions of BGS‐7 through 3D printing and to confirm whether using the scaffold for vertical bone augmentation is effective.Materials and MethodsCube‐shaped bioglass (BGS‐7) and polycaprolactone (PCL) scaffolds with different weight fractions (PCL alone, PCL with 15% and 30% BGS‐7) are produced using 3D printing. The surface hydroxyapatite (HA) apposition, the pH change, proliferation and attachment assays, and various gene expression levels are assessed. After a 7‐mm implant was inserted 3 mm into the rabbit calvaria, vertical bone augmentation is performed around the implant and inside the scaffold in four ways: scaffold only, scaffold+bone graft, bone graft only, and no graft. Sacrifice is performed at 6, 12, and 24 weeks, and the various parameters are compared radiographically and histologically.ResultsHA apposition, cell proliferation, cell attachment, and expression of osteogenic genes increase as the proportion of BGS‐7 increase. In the in vivo test, a higher bone–implant contact ratio, bone volume ratio, bone mineral density, and new bone area are observed when the scaffold and bone grafts were used together.ConclusionThe 3D‐printed scaffold, a mixture of BGS‐7 and PCL, exhibit higher biological compatibility as the proportion of BGS‐7 increase. Additionally, the use of scaffold is effective for vertical bone augmentation.
本实验旨在通过三维打印技术制作不同重量分数的 BGS-7 + PCL 支架,观察其生物特性的差异,并确认使用该支架进行垂直骨增量是否有效。材料和方法使用三维打印技术制作不同重量分数的立方体生物玻璃(BGS-7)和聚己内酯(PCL)支架(单独 PCL、PCL 与 15% 和 30% BGS-7)。对表面羟基磷灰石(HA)附着、pH 值变化、增殖和附着试验以及各种基因表达水平进行了评估。将 7 毫米的植入物插入兔小腿 3 毫米后,在植入物周围和支架内部以四种方式进行垂直骨增量:仅支架、支架+骨移植、仅骨移植和无移植。结果随着 BGS-7 所占比例的增加,骨贴附、细胞增殖、细胞附着和成骨基因的表达也随之增加。在体内试验中,当支架和骨移植物一起使用时,可观察到更高的骨-植入物接触比、骨量比、骨矿物质密度和新骨面积。此外,使用支架还能有效增加垂直骨量。
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引用次数: 0
Influence of repeated implant‐abutment manipulation on the prevalence of peri‐implant diseases in complete arch restorations. A retrospective analysis 反复操作种植体-基台对全牙弓修复体种植体周围疾病发病率的影响。回顾性分析
IF 3.6 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-09-11 DOI: 10.1111/cid.13381
M. Krebs, L. Greilich, P. Weigl, P. Hess, I. Dahmer, A. Begić
PurposeTo evaluate the effects of repeated abutment manipulation on the prevalence of peri‐implant diseases.Materials and MethodsA total of 27 edentulous patients (n = 108 implants) immediately restored with double‐crown retained implant‐supported prostheses were identified for this retrospective study. The test included the one‐abutment, one‐time care concept (n = 18 patients, n = 72 implants, OAOT) and the control abutment replacement (n = 9 patients, n = 36 implants, AR). A mixed effects model regression was conducted for the variable diagnosis (healthy, peri‐implant mucositis, and peri‐implantitis) with predictors abutment replacement (presence/absence), number of abutment replacement, category of keratinized mucosa (KM) (2 < KM ≥2 mm), and radiographic bone loss (BL).ResultsAfter 3–15 years (mean 10.2 ± 2.8 years), the prevalence of peri‐implant mucositis and peri‐implantitis in patients in the AR group was 11.1% and 88.9%, corresponding to 22.2% and 55.6% at the implant level, respectively. In OAOT group, none of the implants showed peri‐implant mucositis, whereas the prevalence for peri‐implantitis at patient and implant level amounted to 5.6% and 5.6%, respectively. The increased number of abutment replacements was significantly associated with the increased probability to diagnose peri‐implant mucositis and peri‐implantitis (OR: 6.13; 95% CI [2.61, 14.39]) (p < 0.001), whereas the presence of keratinized mucosa was not founded as a significant cofounder. The estimated mean BL in AR group was 1.38 mm larger than in OAOT group (p = 0.0190).ConclusionsThe OAOT concept was associated with a lower prevalence of peri‐implant diseases.
目的评估重复基台操作对种植体周围疾病发生率的影响。材料和方法在这项回顾性研究中,共确定了 27 位无牙颌患者(n = 108 个种植体)立即使用双冠固位的种植体支持修复体进行修复。测试包括单基台、一次性护理概念(n = 18 名患者,n = 72 个种植体,OAOT)和对照基台替代(n = 9 名患者,n = 36 个种植体,AR)。对诊断变量(健康、种植体周围粘膜炎和种植体周围炎)与基台置换(有/无)、基台置换次数、角化粘膜(KM)类别(2 < KM ≥2 mm)和放射学骨质流失(BL)进行了混合效应模型回归。结果3-15年后(平均10.2 ± 2.8年),AR组患者种植体周围粘膜炎和种植体周围炎的发病率分别为11.1%和88.9%,种植体水平的发病率分别为22.2%和55.6%。在 OAOT 组中,没有一个种植体出现种植体周围粘膜炎,而患者和种植体水平的种植体周围炎发病率分别为 5.6% 和 5.6%。基台更换次数的增加与诊断种植体周围粘膜炎和种植体周围炎的概率增加有显著相关性(OR:6.13;95% CI [2.61,14.39])(p <0.001),而角化粘膜的存在并不是一个重要的辅助因素。AR组的估计平均BL比OAOT组大1.38 mm (p = 0.0190)。
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引用次数: 0
The impact of antiplatelet and anticoagulant medications on early implant failure following sinus floor augmentation: A retrospective cohort analysis 抗血小板和抗凝药物对窦底增高术后早期植入失败的影响:回顾性队列分析
IF 3.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-08-07 DOI: 10.1111/cid.13369
Ehud Jonas MSc, DMD, Daya Masri DMD, Gal Avishai MSc, DMD, Hiba Masri-Iraqi MD, Gavriel Chaushu MSc, DMD, Liat Chaushu MSc, DMD

Introduction

The effect of antiplatelet and anticoagulant medications on the outcomes of sinus floor augmentation remains unclear.

Methods

This retrospective cohort study analyzed data from electronic medical records of consecutive patients undergoing sinus floor augmentation at a single medical center. Patients were categorized into three categories: patients under antiplatelet medications, patients under anticoagulation medications, and healthy individuals. Data collected included tobacco smoking, residual alveolar bone height, timing of implant placement, materials used, vertical bone gain, early implant failure (EIF), and complications such as Schneiderian membrane perforation and postoperative bleeding. Multivariable analysis was performed to assess risk factors for EIF. Statistical significance was considered below 5%.

Results

Among 110 patients with 305 implants, EIF occurred in 10% of patients and 4.65% of implants. No significant difference in postoperative bleeding or EIF was found between study groups. Univariate and multivariable analyses highlighted tobacco smoking (odds ratio [OR] = 7.92), lower residual alveolar ridge height (OR = 0.81), and staged implant placement (OR = 4.64) as significant EIF risk factors in this cohort.

Conclusions

Anticoagulant and antiplatelet therapies do not significantly elevate the risk of EIF or postoperative bleeding following sinus floor augmentation. Tobacco smoking, residual alveolar ridge height and staged sinus floor augmentation were risk factors for EIF in patients using antiplatelet or anticoagulation medications undergoing sinus floor augmentation.

简介:抗血小板和抗凝药物对窦底隆起术结果的影响尚不清楚:抗血小板和抗凝药物对窦底隆鼻术结果的影响仍不清楚:这项回顾性队列研究分析了一家医疗中心连续接受上颌窦底隆鼻术患者的电子病历数据。患者被分为三类:服用抗血小板药物的患者、服用抗凝药物的患者和健康人。收集的数据包括吸烟情况、剩余牙槽骨高度、植入时间、使用的材料、垂直骨增量、早期植入失败(EIF)以及施奈德膜穿孔和术后出血等并发症。对EIF的风险因素进行了多变量分析。统计显著性低于 5%:结果:在110名共植入305颗假体的患者中,10%的患者和4.65%的假体发生了EIF。研究组之间在术后出血或 EIF 方面没有发现明显差异。单变量和多变量分析显示,吸烟(几率比 [OR] = 7.92)、较低的残余牙槽嵴高度(OR = 0.81)和分期种植体植入(OR = 4.64)是该组患者发生 EIF 的重要风险因素:结论:抗凝和抗血小板疗法不会显著增加窦底隆鼻术后发生 EIF 或术后出血的风险。吸烟、牙槽嵴残留高度和分期上颌窦底隆鼻术是使用抗血小板或抗凝药物进行上颌窦底隆鼻术的患者发生EIF的风险因素。
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引用次数: 0
Retrospective assessment of patients' risk for peri-implant diseases using the implant disease risk assessment (IDRA) tool: A cohort study 使用种植体疾病风险评估(IDRA)工具对患者种植体周围疾病风险进行回顾性评估:一项队列研究。
IF 3.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-08-07 DOI: 10.1111/cid.13371
José Lucas de Medeiros Dantas, Guilherme Carlos Beiruth Freire, Patrícia dos Santos Calderon, Poliana Mendes Duarte, Bruno César de Vasconcelos Gurgel

Introduction

The implant disease risk assessment (IDRA) tool was designed to assess an individual's risk of developing peri-implant diseases by evaluating and integrating multiple risk factors. This study aimed to evaluate the IDRA tool to determine the risk of developing peri-implant disease in patients rehabilitated with dental implants.

Methods

A retrospective observational cross-sectional study was conducted, collecting data from 92 patients with 92 selected dental implants. Data included the history of periodontitis, sites with bleeding on probing (BoP), teeth and/or implants with probing depths (PDs) ≥ 5 mm, alveolar bone loss relative to the patient's age, susceptibility to periodontitis, the frequency of supportive periodontal therapy (SPT), the distance from the restorative margin (RM) of the implant-supported prosthesis to the marginal bone crest (MBC), and factors related to the prosthesis itself. Additionally, the validated instrument periodontal risk assessment (PRA) was employed for comparison. Statistical analyses utilized Chi-square, Mann–Whitney, and ROC curve.

Results

Outcomes indicated that 62 implants (67.4%) were classified as high-risk. Among the IDRA parameters, history of periodontitis was the primary factor contributing to an increased risk (p < 0.001). IDRA revealed high sensitivity (100%) and low specificity (63%) (AUC = 0.685; 95% CI: 0.554–0.816; p = 0.047), and there was a low agreement between the IDRA and PRA tools (Kappa = 0.123; p = 0.014). The peri-implant disease developed in 16 implants with 5.44 (±2.50) years of follow-up, however, no significant association was observed between the high- and low-medium risk groups and the occurrence of peri-implant diseases.

Conclusion

Most of the evaluated implants presented high IDRA risk. The IDRA tool exhibited high sensitivity and low specificity; no significant association was observed between the risk profile and the development of peri-implant diseases.

简介种植体疾病风险评估(IDRA)工具旨在通过评估和整合多种风险因素来评估个人患种植体周围疾病的风险。本研究旨在对 IDRA 工具进行评估,以确定种植牙修复患者罹患种植体周围疾病的风险:方法:本研究进行了一项回顾性观察横断面研究,收集了 92 名选定种植牙患者的数据。数据包括牙周炎病史、探诊出血(BoP)部位、探诊深度(PDs)≥ 5 毫米的牙齿和/或种植体、与患者年龄相关的牙槽骨损失、牙周炎易感性、支持性牙周治疗(SPT)频率、种植体支持修复体的修复缘(RM)到边缘骨嵴(MBC)的距离以及与修复体本身相关的因素。此外,还采用了经过验证的牙周风险评估(PRA)工具进行比较。统计分析采用了Chi-square、Mann-Whitney和ROC曲线:结果显示,62 个种植体(67.4%)被归类为高风险种植体。在 IDRA 参数中,牙周炎病史是导致风险增加的主要因素(p 结论:大多数被评估的种植体都出现了 IDRA 问题:大多数接受评估的种植体都具有高 IDRA 风险。IDRA 工具具有高灵敏度和低特异性;在风险状况和种植体周围疾病的发展之间没有发现明显的关联。
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引用次数: 0
Advancements in dental implantology: The alveolar ridge split technique for enhanced osseointegration 种植牙技术的进步:加强骨结合的牙槽嵴分裂技术。
IF 3.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-07-29 DOI: 10.1111/cid.13363
Feng Luo, Yafei Mo, Jiapei Jiang, Jing Wen, Yixuan Ji, Lei Li, Qianbing Wan

The alveolar ridge split (ARS) technique is a pivotal advancement in dental implantology, addressing the limitation of insufficient bone width for implant placement. This review traces the historical development of ARS from its initial conceptualization to current practices and future directions. Emphasizing the technique's development, indications, procedural overview, and osteotomy variations, we highlight its minimally invasive nature, which reduces patient morbidity and treatment time. This article reviews various osteotomy methods within ARS, examining their applications, benefits, and limitations. Furthermore, it discusses the technique's role in expanding treatment options for patients with compromised alveolar structures, underpinned by a high implant survival rate and the potential for immediate implant placement. We also cover the necessity of meticulous surgical technique, the importance of patient-specific factors, and the promising future of ARS facilitated by advancements in biomaterials and regenerative medicine. In summary, this review provides a comprehensive overview of ARS, offering valuable insights for dental professionals and informing future clinical practices and research in implantology.

牙槽嵴分离(ARS)技术是牙科种植学的一个关键进步,它解决了骨宽度不足对种植体植入的限制。这篇综述回顾了 ARS 从最初的概念到当前实践和未来方向的历史发展。我们强调了该技术的发展、适应症、程序概述和截骨方法的变化,并着重介绍了其微创性,这降低了患者的发病率并缩短了治疗时间。本文回顾了 ARS 中的各种截骨方法,研究了它们的应用、优点和局限性。此外,文章还讨论了该技术在扩大牙槽骨结构受损患者的治疗选择方面所起的作用,因为该技术具有较高的种植体存活率和即刻植入种植体的潜力。我们还讨论了精细手术技术的必要性、患者特定因素的重要性,以及生物材料和再生医学的进步为 ARS 带来的光明前景。总之,这篇综述全面概述了 ARS,为牙科专业人士提供了宝贵的见解,并为种植学未来的临床实践和研究提供了参考。
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引用次数: 0
Bovine-originated xenografts versus synthetic bone grafting materials in lateral maxillary sinus floor augmentation: A systematic review and meta-analysis 牛源性异种移植物与合成骨移植材料在上颌窦底外侧增量术中的应用:系统回顾和荟萃分析。
IF 3.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-07-29 DOI: 10.1111/cid.13364
Tianqi Guo PhD, Yingxin Gu PhD, Xiao Zhang MD, Xinxin Ding PhD, Xiaomeng Zhang PhD, Yu Zhu PhD, Jiaji Mo PhD, Junyu Shi PhD, Hongchang Lai PhD

Aims

This study aimed to systematically compare the patients undergoing lateral MSFA therapies utilizing bovine-originated xenografts versus varied synthetic bone grafting materials.

Methods

Pubmed, Scopus, Embase, and Cochrane Library were searched up to April 2023, compensated by a manual search in selected journals. Studies reporting histological outcomes (residual bone graft, newly formed bone, non-mineralized tissue) and clinical outcomes (implant survival, ISQ value) were included. Several analyses were performed, including meta-analysis, sensitivity study, and Egger's regression tests.

Results

Sixteen clinical/randomized control trials were included in this systematic review, among which 12 were enrolled in a meta-analysis. The percentage of newly formed bone within the grafted sinuses by hybrid HA/TCP was significantly higher than those by xenografts (WMD 2.85, 95%CI [0.72; 4.99]), but those grafted by pure HA (WMD −1.72, 95%CI [−3.15; −0.29]) or TCP (WMD −7.10, 95%CI [−13.02; −1.17]) were significantly lower than xenograft counterparts. The residual bone graft and non-mineralized tissue yielded by synthetic HA, TCP, and HA/TCP showed no significant differences with the xenograft group.

Conclusion

The chemistry of grafted bone substitutes in lateral MSFA influenced the quantity of newly formed bone. Those grafted with hybrid HA/TCP yielded the highest amount of new bone compared to bovine-originated HA. However, this influence was not significant on residual bone graft and non-mineralized tissue.

目的:本研究旨在系统比较使用牛源性异种移植物和各种合成骨移植材料进行侧位 MSFA 治疗的患者:方法:对 Pubmed、Scopus、Embase 和 Cochrane 图书馆进行了检索,检索期截至 2023 年 4 月,并对部分期刊进行了人工检索。纳入了报告组织学结果(残留植骨、新形成骨、非矿化组织)和临床结果(植入物存活率、ISQ 值)的研究。进行了多项分析,包括荟萃分析、敏感性研究和 Egger 回归测试:本系统综述共纳入了 16 项临床/随机对照试验,其中 12 项纳入了荟萃分析。混合 HA/TCP 移植窦内新形成骨的百分比显著高于异种移植(WMD 2.85,95%CI [0.72;4.99]),但纯 HA(WMD -1.72,95%CI [-3.15;-0.29])或 TCP(WMD -7.10,95%CI [-13.02;-1.17])移植窦内新形成骨的百分比显著低于异种移植。合成HA、TCP和HA/TCP产生的残余植骨和非矿化组织与异种移植组无明显差异:结论:外侧 MSFA 中移植骨替代物的化学成分会影响新形成骨的数量。结论:侧MSFA中移植骨替代物的化学成分对新形成骨的数量有影响。与牛源性HA相比,移植混合HA/TCP的骨替代物产生的新骨量最高。然而,这种影响对残留骨移植和非矿化组织的影响并不明显。
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引用次数: 0
Effect of one-time placement of the definitive abutment versus multiple healing abutment disconnections and reconnections during the prosthetic phase on radiographic and clinical outcomes: A 12-month randomized clinical trial 在修复阶段一次性放置最终基台与多次断开和重新连接愈合基台对放射学和临床结果的影响:为期 12 个月的随机临床试验。
IF 3.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-07-16 DOI: 10.1111/cid.13361
Javier Calatrava, Ignacio Sanz-Sánchez, Ana Molina, Juan Bollain, Conchita Martín, Mariano Sanz

Objective

The aim of this investigation was to evaluate the effect on clinical and radiological outcomes of the one-abutment, one-time protocol (test) versus placing the definitive abutment on the day of functional loading after having disconnected and connected three times the healing abutment during the prosthetic phase (control).

Materials and methods

Forty patients with 80 implants were randomly allocated to either the test or the control group. Changes in the radiographic marginal bone levels (MBLs), clinical outcomes, prosthetic-related outcomes, and patient-reported outcomes measures (PROMs) were assessed and compared 6 and 12 months after functional loading.

Results

Thirty-seven patients with 74 implants were followed at 12 months. A statistically significant bone remodeling was observed in both groups following implant placement. MBLs were significantly greater in the control group at the 6- (−0.13 mm vs. −0.61 mm) and 12-month visits (−0.01 mm vs. −0.53 mm). Bone loss was significantly greater in the control group from surgery to 6 and 12 months and from loading to 6 and 12 months. The abutment height was significantly greater in the test group, however, there were no significant differences in the restorative angle. Similarly, there were no statistically significant differences between groups for the measured clinical variables (probing depth, plaque, and bleeding index) and PROMs.

Conclusions

Disconnecting and reconnecting the healing abutment was associated with significantly higher bone loss after 12 months, as compared to the placement of the definitive abutment at implant installation.

目的本研究旨在评估一次性基台植入方案(试验组)与在修复阶段断开并连接三次愈合基台后在功能负荷日植入最终基台(对照组)对临床和放射学结果的影响:40名患者共80颗种植体被随机分配到试验组或对照组。在功能负荷 6 个月和 12 个月后,评估并比较放射学边缘骨水平 (MBL)、临床结果、修复相关结果和患者报告结果测量 (PROM) 的变化:对 37 名患者的 74 个种植体进行了为期 12 个月的随访。两组患者在植入种植体后都观察到了具有统计学意义的骨重塑。对照组在 6 个月(-0.13 mm 对 -0.61 mm)和 12 个月(-0.01 mm 对 -0.53 mm)时的 MBL 明显更大。对照组从手术到 6 个月和 12 个月以及从加载到 6 个月和 12 个月的骨质流失明显更多。测试组的基台高度明显更高,但修复角度没有明显差异。同样,在测量的临床变量(探诊深度、牙菌斑和出血指数)和PROMs方面,组间也没有明显的统计学差异:结论:与在种植体安装时植入最终基台相比,断开并重新连接愈合基台与12个月后骨质流失显著增加有关。
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引用次数: 0
Trueness and fit of complete-arch implant-supported frameworks in new-generation additively and subtractively manufactured polymers: An in-vitro study 使用新一代加法和减法聚合物制造的完整拱形种植体支撑框架的真实性和密合性:体外研究。
IF 3.7 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-07-11 DOI: 10.1111/cid.13362
Burak Yilmaz DDS, PhD, Mustafa Borga Donmez DDS, PhD, Mehmet Esad Güven DDS, PhD, Faris Z. Jamjoom BDS, MS, DMSc, FRCDC, Çiğdem Kahveci DDS, PhD, Martin Schimmel Med Dent, Gülce Çakmak DDS, PhD
<div> <section> <h3> Background</h3> <p>There is limited knowledge on the fabrication trueness and fit of additively or subtractively manufactured complete-arch implant-supported frameworks in recently introduced polymers.</p> </section> <section> <h3> Purpose</h3> <p>To evaluate the trueness and marginal fit of additively or subtractively manufactured polymer-based complete-arch implant-supported frameworks, comparing with those of strength gradient zirconia frameworks.</p> </section> <section> <h3> Materials and Methods</h3> <p>A typodont model with 4 implants (left first molar (abutment 1), left canine (abutment 2), right canine (abutment 3), and right first molar (abutment 4)) was digitized (ATOS Core 80 5MP) and an implant-supported complete-arch framework was designed. This design file was used to fabricate frameworks from 5 different materials: strength gradient zirconia (SM-ZR), high impact polymer composite (SM-CR), nanographene-reinforced PMMA (SM-GR), PMMA (SM-PM), and additively manufactured temporary resin (AM) (<i>n</i> = 10). These frameworks were digitized and each scan file was virtually segmented into 4 regions (abutments, occlusal, overall without occlusal, and overall). The surface deviations at these regions, and linear and interimplant distance deviations were evaluated (Geomagic Control X). Marginal gaps were evaluated according to triple-scan protocol after seating frameworks on the model with the 1-screw test. Data were statistically analyzed (<i>α</i> = 0.05).</p> </section> <section> <h3> Results</h3> <p>Surface deviations of all regions differed among tested materials (<i>p</i> ≤ 0.001). AM frameworks mostly had surface deviations that were similar to or lower than those of other materials (<i>p</i> ≤ 0.031), except for the occlusal surface, where it mostly had higher deviations (<i>p</i> ≤ 0.013). Abutment 4 of SM-CR had higher linear deviations than abutment 2 (<i>p</i> = 0.025), and material type did not affect the linear deviations within abutments (<i>p</i> ≥ 0.171). Interimplant distance deviations differed within and among materials (<i>p</i> ≤ 0.017), except for those between abutments 1 and 2 among materials (<i>p</i> = 0.387). Marginal gaps of subtractively manufactured materials differed among abutments, while those of abutments 3 and 4 differed among materials (<i>p</i> ≤ 0.003). AM frameworks mostly had lower marginal gaps at abutments 3 and 4 (<i>p</i> ≤ 0.048).</p> </section> <section> <h3> Conclusions</h3>
背景:目的:与强度梯度氧化锆骨架相比,评估加法或减法生产的聚合物基底全牙弓种植体支撑骨架的真实度和边缘密合度:将带有 4 个种植体(左侧第一磨牙(基台 1)、左侧犬齿(基台 2)、右侧犬齿(基台 3)和右侧第一磨牙(基台 4))的正畸模型数字化(ATOS Core 80 5MP),并设计了种植体支持的全牙弓框架。使用该设计文件制作了 5 种不同材料的骨架:强度梯度氧化锆(SM-ZR)、高抗冲聚合物复合材料(SM-CR)、纳米石墨烯增强 PMMA(SM-GR)、PMMA(SM-PM)和加成临时树脂(AM)(n = 10)。对这些牙架进行数字化处理,并将每个扫描文件虚拟分割成 4 个区域(基台、咬合面、无咬合面的整体和整体)。对这些区域的表面偏差以及线性和临时距离偏差进行了评估(Geomagic Control X)。在模型上安装框架后,根据三重扫描协议对边缘间隙进行评估。对数据进行统计分析(α = 0.05):不同测试材料所有区域的表面偏差均有差异(p ≤ 0.001)。AM 框架的表面偏差大多与其他材料相似或更低(p ≤ 0.031),但咬合面除外,其偏差大多更高(p ≤ 0.013)。SM-CR 的 4 号基台的线性偏差高于 2 号基台(p = 0.025),材料类型对基台内的线性偏差没有影响(p ≥ 0.171)。除基台 1 和基台 2 之间的线性偏差(p = 0.387)外,不同材料内部和之间的间距偏差均存在差异(p ≤ 0.017)。减法制造材料的边缘间隙在不同基台之间存在差异,而 3 号和 4 号基台的边缘间隙在不同材料之间存在差异(p ≤ 0.003)。AM基台在3号和4号基台的边缘间隙大多较小(p ≤ 0.048):结论:虽然测试材料之间的测量偏差没有明显的趋势,但加成法制造的树脂的边缘间隙大多低于减成法制造的材料,并且在基台部位之间没有差异。不过,不同材料之间的测量偏差差异很小,边缘间隙也在之前报告的可接受性阈值范围内。
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Clinical Implant Dentistry and Related Research
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