Clinical Oral Implants Research最新文献_第7页

One-stage prosthodontically driven jaw reconstruction in patients with benign and malignant pathologies: A 7- to 11-year cohort study 良性和恶性病变患者的单阶段义齿驱动颌骨重建：一项为期 7 至 11 年的队列研究。

IF 4.8 1区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical Oral Implants Research

Pub Date : 2024-07-02 DOI: 10.1111/clr.14322

Vinay V. Kumar, Supriya Ebenezer, Sreelakshmi Viswanath, Andreas Thor

Objectives

One stage functional jaw reconstruction is defined as the resection and reconstruction of segmental defects in conjunction with the placement of dental implants in an ideal prosthetic position and loaded with a provisional restoration, during one surgical procedure. The aim of the study is to describe clinical outcomes of patients who underwent one stage functional jaw reconstruction.

Methods

Patients who underwent one-stage functional jaw reconstruction, from January 2013 to March 2016 were recalled in 2022 and 2023. Planning and execution for the reconstruction utilized either analogue or digital techniques. Outcome parameters recorded were treatment-related outcomes at patient level, implant-related outcomes and patient-reported outcome measures.

Results

Eighteen patients underwent one-stage jaw reconstruction with a total of 57 implants. Four patients had maxillary and 14 had mandibular reconstructions. Ten patients underwent postoperative radiotherapy. Ten patients were planned using analogue and eight by digital planning. Three patients had partial flap necrosis, three patients had plate fractures, implant loss was seen in one patient and four patients died during the period. A functional prosthesis was provided in 16 out of the 18 patients.

Conclusion

One-stage functional jaw reconstruction is a predictable method for providing rehabilitation with successful outcomes at 7–11 years. However, caution should be exercised when the treatment modality is carried out in patients with malignant pathologies who have undergone radiotherapy.

目的：一期功能性颌骨重建是指在一次手术过程中切除和重建部分缺损，同时在理想的修复位置植入牙科植入体，并加载临时修复体。本研究旨在描述接受一期功能性颌骨重建术患者的临床疗效：方法：对在 2013 年 1 月至 2016 年 3 月期间接受过一期功能性颌骨重建术的患者在 2022 年和 2023 年进行了召回。重建的规划和实施采用模拟或数字技术。记录的结果参数包括患者层面的治疗相关结果、种植体相关结果和患者报告的结果测量：18名患者接受了单阶段颌骨重建，共植入了57颗种植体。4名患者进行了上颌重建，14名患者进行了下颌重建。10名患者接受了术后放射治疗。10 名患者采用模拟规划，8 名患者采用数字规划。在此期间，3 名患者出现部分皮瓣坏死，3 名患者出现骨板骨折，1 名患者出现种植体脱落，4 名患者死亡。18名患者中有16人获得了功能性假体：结论：单阶段功能性颌骨重建是一种可预测的康复方法，可在 7-11 年内取得成功。结论：单阶段功能性颌骨重建是一种可预测的康复方法，可在7-11年后获得成功的结果。不过，对于接受过放射治疗的恶性病变患者，在采用这种治疗方法时应谨慎。

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引用次数: 0

RETRACTION: Ultrastructural study by backscattered electron imaging and elemental microanalysis of bone-to-biomaterial interface and mineral degradation of porcine xenografts used in maxillary sinus floor elevation 回放：通过反向散射电子成像和元素显微分析，对用于上颌窦底提升术的猪异种移植物的骨-生物材料界面和矿物质降解情况进行超微结构研究。

IF 4.8 1区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical Oral Implants Research

Pub Date : 2024-07-02 DOI: 10.1111/clr.14304

M. P. Ramírez-Fernández, J. L. Calvo-Guirado, J. E. Maté-Sánchez del Val, R. A. Delgado-Ruiz, B. Negri, C. Barona-Dorado, “Ultrastructural study by backscattered electron imaging and elemental microanalysis of bone-to-biomaterial interface and mineral degradation of porcine xenografts used in maxillary sinus floor elevation,” Clinical Oral Implants Research 24, no. 5 (2013): 523–530, https://doi.org/10.1111/j.1600-0501.2011.02414.x.

The above article, published online on 26 January 2012 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the journal Editor-in-Chief, Lisa J. A. Heitz-Mayfield; and John Wiley & Sons Ltd. The retraction has been agreed due to concerns raised by third parties on the data presented in the article. Several flaws and inconsistencies between results presented and experimental methods described were found. Specifically, instances of overlapping data within the article and with another publication authored by the same group have been found, despite the articles have different study designs. Accordingly, the editors consider the findings of this article unreliable and the conclusions to be invalid. The authors have been informed of the decision to retract the article. The corresponding author M. P. Ramírez-Fernández and co-author R. A. Delgado-Ruiz disagree with the decision of retraction. The remaining co-authors were not available for a final confirmation of the retraction.

P. Ramírez-Fernández, J. L. Calvo-Guirado, J. E. Maté-Sánchez del Val, R. A. Delgado-Ruiz, B. Negri, C. Barona-Dorado, "Ultrastructural study by backscattered electron imaging and elemental microanalysis of bone-to-biomaterial interface and mineral degradation of porcine xenografts used in maxillary sinus floor elevation," Clinical Oral Implants Research 24, no.5 (2013):523-530, https://doi.org/10.1111/j.1600-0501.2011.02414.x。上述文章于 2012 年 1 月 26 日在线发表于 Wiley Online Library (wileyonlinelibrary.com)，经期刊主编 Lisa J. A. Heitz-Mayfield 和 John Wiley & Sons Ltd.（约翰-威利父子有限公司）协商，该文章已被撤回。之所以同意撤稿，是因为第三方对文章中提供的数据提出了疑虑。我们发现文章中介绍的结果与实验方法之间存在若干缺陷和不一致之处。具体而言，尽管文章的研究设计不同，但发现文章中的数据与同一小组撰写的另一篇文章中的数据存在重叠。因此，编辑认为这篇文章的研究结果不可靠，结论无效。已将撤稿决定通知作者。通讯作者M. P. Ramírez-Fernández和合著者R. A. Delgado-Ruiz不同意撤稿决定。其余合著者无法最终确认撤稿决定。

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引用次数: 0

Does an untreated peri-implant dehiscence defect affect the progression of peri-implantitis?: A preclinical in vivo experimental study 未经处理的种植体周围开裂缺陷会影响种植体周围炎的发展吗？临床前体内实验研究。

IF 4.8 1区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical Oral Implants Research

Pub Date : 2024-07-01 DOI: 10.1111/clr.14324

Young Woo Song, Jin-Young Park, Ji-Yeong Na, Yoon-Hee Kwon, Jae-Kook Cha, Ui-Won Jung, Daniel S. Thoma, Ronald E. Jung

Objective

To investigate the early impact of plaque accumulation in a buccal dehiscence defect on peri-implant marginal bone resorption.

Materials and Methods

In six male Mongrel dogs, four dental implants were placed in the posterior maxilla on both sides (two implants per side). Based on the group allocation, each implant was randomly assigned to one of the following four groups to decide whether buccal dehiscence defect was prepared and whether silk ligation was applied at 8 weeks post-implant placement for peri-implantitis induction: UC (no defect without ligation); UD (defect without ligation); LC (no defect with ligation); and LD (defect with ligation) groups. Eight weeks after disease induction, the outcomes from radiographic and histologic analyses were statistically analyzed (p < .05).

Results

Based on radiographs, the exposed area of implant threads was smallest in group UC (p < .0083). Based on histology, both the distances from the implant platform to the first bone-to-implant contact point and to the bone crest were significantly longer in the LD group (p < .0083). In the UD group, some spontaneous bone fill occurred from the base of the defect at 8 weeks after implant placement. The apical extension of inflammatory cell infiltrate was significantly more prominent in the LD and LC groups compared to the UC group (p < .0083).

Conclusion

Plaque accumulated on the exposed implant surface had a negative impact on maintaining the peri-implant marginal bone level, especially when there was a dehiscence defect around the implant.

目的研究颊部开裂缺损中的菌斑积累对种植体周围边缘骨吸收的早期影响：在六只雄性蒙古犬的后上颌骨两侧植入四颗种植体（每侧两颗）。根据组别分配，每颗种植体被随机分配到以下四组中的一组，以决定是否准备颊部开裂缺损，以及是否在种植体植入后 8 周进行丝线结扎以诱导种植体周围炎：UC（无缺损不结扎）组；UD（缺损不结扎）组；LC（缺损不结扎）组；LD（缺损结扎）组。疾病诱导八周后，对放射学和组织学分析结果进行统计分析（P 结果：根据 X 光片，UC 组的种植体螺纹暴露面积最小（p 结论：UC 组的种植体螺纹暴露面积最小：种植体暴露面上积累的牙菌斑对维持种植体周围边缘骨水平有负面影响，尤其是当种植体周围有开裂缺损时。

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引用次数: 0

Single-piece zirconia versus single-piece titanium, narrow-diameter dental implants in the anterior maxilla: 5-year post-loading results of a randomized clinical trial 上颌骨前部单片氧化锆与单片钛、窄直径牙科植入物的对比：随机临床试验的 5 年后装载结果

IF 4.8 1区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical Oral Implants Research

Pub Date : 2024-06-28 DOI: 10.1111/clr.14319

Paula Andrea Ruiz Henao, Gabriel Leonardo Magrin, Leticia Caneiro-Queija, Cesar Augusto Magalhães Benfatti, Yago Leira, Antonio Liñares-González, Juan Blanco-Carrión

Objectives

The aim of this study was to evaluate esthetic parameters in the anterior maxillary region by comparing single-piece zirconia versus titanium narrow-diameter implants. Additionally, clinical, radiological and patient-reported outcome measures (PROMs) were analyzed.

Materials and Methods

Thirty implants (tissue level implant) were placed in 30 patients in the maxillary esthetic sector. Depending on randomization, a zirconia (test) or titanium implant (control) was placed. Esthetic, clinical, and radiological parameters, including the implant crown esthetic index (ICAI), pink esthetic score (PES), probing pocket depth, bleeding on probing, plaque index, and marginal bone levels, were evaluated at 12, 36 and 60 months after loading.

Results

Sixty months after crown placement, no significant differences were found between groups. The ICAI values were 5.25 ± 4.21 and 4.50 ± 2.98 for the test and control groups, respectively. The corresponding PES values were 7.44 ± 1.93 and 7.43 ± 1.74 for the test and control groups, respectively. There were no significant intergroup differences for the rest of the parameters evaluated.

Conclusion

It can be suggested that monotype zirconia implants may serve as a potential alternative to titanium implants in selected clinical scenarios. While the results demonstrated comparable esthetic, clinical, and radiological aspects for zirconia implants as compared to titanium implants after a 5-year follow-up period, further research with larger sample sizes and longer-term follow-up is recommended.

本研究旨在通过比较单片氧化锆与钛窄径种植体，评估上颌前牙区的美学参数。此外，还对临床、放射学和患者报告的结果指标（PROMs）进行了分析。材料和方法在 30 名患者的上颌美学区域植入了 30 个种植体（组织水平种植体）。根据随机分配，植入了氧化锆（试验）或钛种植体（对照）。在植入后的 12 个月、36 个月和 60 个月对美学、临床和放射学参数进行评估，包括植入冠美学指数（ICAI）、粉色美学评分（PES）、探诊袋深度、探诊出血量、牙菌斑指数和边缘骨水平。试验组和对照组的 ICAI 值分别为 5.25 ± 4.21 和 4.50 ± 2.98。测试组和对照组的相应 PES 值分别为 7.44 ± 1.93 和 7.43 ± 1.74。结论可以认为，在特定的临床情况下，单型氧化锆种植体可以作为钛种植体的潜在替代品。虽然 5 年的随访结果表明氧化锆种植体与钛种植体在美学、临床和放射学方面具有可比性，但仍建议进行样本量更大、随访时间更长的进一步研究。

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引用次数: 0

Effects of hard- and/or soft-tissue grafting with early implant placement: Histomorphometric outcomes of an exploratory study in canines 早期植入种植体的硬组织和/或软组织移植效果：犬科探索性研究的组织形态计量结果

IF 4.8 1区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical Oral Implants Research

Pub Date : 2024-06-21 DOI: 10.1111/clr.14320

Hyun-Chang Lim, Kwang-Seok Lee, Ronald E. Jung, Nadja Naenni, Ui-Won Jung, Daniel S. Thoma

Objective

To histomorphometrically determine the effects of hard- and/or soft-tissue augmentation by applying the early implant placement protocol.

Materials and Methods

The distal roots of the maxillary second and third premolars were extracted in 10 mongrel dogs. After 1 month, early implant placement was performed in the distal roots, resulting in buccal dehiscence defects. Four treatments were then randomly applied: (1) guided bone regeneration (GBR), (2) connective tissue grafting (CTG), (3) simultaneous GBR and CTG (GBR + CTG) and (4) no further treatment (control). Healing abutments were connected to all implants to allow non-submerged healing. At 4 and 16 weeks, tissue sections were harvested and histomorphometric analyses were performed.

Results

Group GBR presented the largest total tissue thickness at 4 weeks, but underwent a greater remodelling compared with the other groups between 4 and 16 weeks. At 16 weeks, the overall tissue thickness was largest in group GBR + CTG. This group was also the most favourable in terms of the level of the margo mucosae and the presence of mineralized tissue at the coronal level. Group CTG demonstrated a stable tissue thickness over time, with a larger thickness at 16 weeks compared with group GBR.

Conclusion

Simultaneous CTG and GBR resulted in the most-favourable tissue thickness when applying the early implant placement protocol.

材料与方法拔除 10 只杂种狗的上颌第二和第三前臼齿远端牙根。1 个月后，对远端牙根进行早期种植，造成颊开裂缺损。然后随机采用四种治疗方法：(1) 引导骨再生（GBR）；(2) 结缔组织移植（CTG）；(3) 同时进行 GBR 和 CTG（GBR + CTG）；(4) 不再进行治疗（对照组）。所有种植体都连接了愈合基台，以实现非浸没式愈合。结果 GBR 组在 4 周时的组织总厚度最大，但在 4 至 16 周期间与其他组相比，重塑程度更大。16 周时，GBR + CTG 组的总组织厚度最大。就粘膜水平和冠状水平矿化组织的存在而言，该组也是最有利的。结论在应用早期种植体植入方案时，同时使用 CTG 和 GBR 可获得最理想的组织厚度。

{"title":"Effects of hard- and/or soft-tissue grafting with early implant placement: Histomorphometric outcomes of an exploratory study in canines","authors":"Hyun-Chang Lim, Kwang-Seok Lee, Ronald E. Jung, Nadja Naenni, Ui-Won Jung, Daniel S. Thoma","doi":"10.1111/clr.14320","DOIUrl":"10.1111/clr.14320","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>To histomorphometrically determine the effects of hard- and/or soft-tissue augmentation by applying the early implant placement protocol.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>The distal roots of the maxillary second and third premolars were extracted in 10 mongrel dogs. After 1 month, early implant placement was performed in the distal roots, resulting in buccal dehiscence defects. Four treatments were then randomly applied: (1) guided bone regeneration (GBR), (2) connective tissue grafting (CTG), (3) simultaneous GBR and CTG (GBR + CTG) and (4) no further treatment (control). Healing abutments were connected to all implants to allow non-submerged healing. At 4 and 16 weeks, tissue sections were harvested and histomorphometric analyses were performed.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Group GBR presented the largest total tissue thickness at 4 weeks, but underwent a greater remodelling compared with the other groups between 4 and 16 weeks. At 16 weeks, the overall tissue thickness was largest in group GBR + CTG. This group was also the most favourable in terms of the level of the margo mucosae and the presence of mineralized tissue at the coronal level. Group CTG demonstrated a stable tissue thickness over time, with a larger thickness at 16 weeks compared with group GBR.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Simultaneous CTG and GBR resulted in the most-favourable tissue thickness when applying the early implant placement protocol.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10455,"journal":{"name":"Clinical Oral Implants Research","volume":"35 10","pages":"1324-1334"},"PeriodicalIF":4.8,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/clr.14320","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141448328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative in vitro evaluation of microgap in titanium stock versus cobalt–chrome custom abutments on a conical connection implant: Effect of crown cementation and ceramic veneering 锥形连接种植体上钛库存基台与钴铬定制基台微间隙的体外比较评估：牙冠粘结和陶瓷贴面的影响。

IF 4.8 1区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical Oral Implants Research

Pub Date : 2024-06-17 DOI: 10.1111/clr.14317

Federico Herrero-Climent, Francisco Martínez-Rus, María Paz Salido, David Roldán, Guillermo Pradíes

Objective

To compare the implant–abutment connection microgap between computer-aided design and computer-aided manufacturing (CAD/CAM) milled or laser-sintered cobalt–chrome custom abutments with or without ceramic veneering and titanium stock abutments with or without crown cementation.

Material and Methods

Six groups of six abutments each were prepared: (1) CAD/CAM cobalt–chrome custom abutments: milled, milled with ceramic veneering, laser-sintered, and laser-sintered with ceramic veneering (four groups: MIL, MIL-C, SIN, and SIN-C, respectively) and (2) titanium stock abutments with or without zirconia crown cementation (two groups: STK and STK-Z, respectively). Abutments were screwed to the implants by applying 30 Ncm torque. All 36 samples were sectioned along their long axes. The implant–abutment connection microgap was measured using scanning electron microscopy on the right and left sides of the connection at the upper, middle, and lower levels. Data were analyzed using the Kruskal–Wallis test (p < .05).

Results

Mean values (μm) of the microgap were 0.54 ± 0.44 (STK), 0.55 ± 0.48 (STK-Z), 1.53 ± 1.30 (MIL), 2.30 ± 2.2 (MIL-C), 1.53 ± 1.37 (SIN), and 1.87 ± 1.8 (SIN-C). Although significant differences were observed between the STK and STK-Z groups and the other groups (p < .05), none were observed between the milled and laser-sintered groups before or after ceramic veneering. The largest microgap was observed at the upper level in all groups.

Conclusions

Titanium stock abutments provided a closer fit than cobalt–chrome custom abutments. Neither crown cementation nor ceramic veneering resulted in significant changes in the implant–abutment connection microgap.

目的比较计算机辅助设计和计算机辅助制造（CAD/CAM）铣制或激光烧结钴铬合金定制基台（带或不带陶瓷贴面）与钛合金基台（带或不带牙冠粘结）之间的种植体-基台连接微间隙：制备了六组基台，每组六个：(1) CAD/CAM 钴铬合金定制基台：铣削、铣削后陶瓷贴面、激光烧结和激光烧结后陶瓷贴面（四组：分别为 MIL、MIL-C、SIN 和 SIN-C）；(2) 粘接或不粘接氧化锆冠的钛库存基台（两组：分别为 STK 和 STK-Z）。基台以 30 Ncm 的扭力拧紧到种植体上。对所有 36 个样本沿长轴进行切片。使用扫描电子显微镜测量了种植体与基台连接处左右两侧上、中、下的微间隙。数据分析采用 Kruskal-Wallis 检验（P 结果：微间隙的平均值（μm）分别为 0.54 ± 0.44（STK）、0.55 ± 0.48（STK-Z）、1.53 ± 1.30（MIL）、2.30 ± 2.2（MIL-C）、1.53 ± 1.37（SIN）和 1.87 ± 1.8（SIN-C）。虽然 STK 和 STK-Z 组与其他组之间存在明显差异（p 结论：STK 和 STK-Z 组的钛基底可提供更好的修复效果：钛基台比钴铬合金定制基台更密合。牙冠粘结和陶瓷贴面都不会导致种植体与基台连接微间隙的显著变化。

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引用次数: 0

Three-dimensional changes and influencing factors of tent space following osteotome sinus floor elevation without grafting: A 48-month retrospective radiographic study 截骨窦底提升术后帐篷空间的三维变化和影响因素：一项为期 48 个月的回顾性放射学研究。

IF 4.8 1区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical Oral Implants Research

Pub Date : 2024-06-14 DOI: 10.1111/clr.14312

Wen Zhang, Haida Chen, Ke Zhao, Xinhua Gu

Objectives

To analyze the three-dimensional stability and morphologic changes of tent space after the osteotome sinus floor elevation (OSFE) procedures without bone grafts.

Materials and Methods

Forty-six implants placed using the OSFE technique with simultaneous implant placement without bone grafts were included in this retrospective study. Cone-beam computed tomography (CBCT) scans of the augmented sinuses were obtained pre- and postoperatively up to 48 months of follow-up. The maxillary sinus cavity profiles were outlined using three-dimensional virtual reconstruction and superimposition of CBCT scans. The three-dimensional changes in the tent space were measured. A generalized estimating equation (GEE) was used to explore potential factors.

Results

The implant survival rate was 97.8%. The mean volume of remaining tent space immediately after surgery was 96.8 ± 70.5 mm³, shrinking to 31.0 ± 24.9 mm³ after 48 months, while the mean percentage of remaining tent space volume decreased to 29.1 ± 20.7%. The tent space volume and the percentage of residual tent space volume only decreased significantly within 12 months after surgery (p = .008, .013). GEE results indicated positive correlations between the percentage of remaining tent space volume and implant protrusion length (p = .000) and apical height (p = .000), with a negative correlation between the sinus floor area immediately after surgery (p = .002) and the healing time (p = .022).

Conclusions

The volume of the tent space rapidly shrank after OSFE without bone grafts. Several factors might influence the tent space stability. Long-term clinical trials with larger sample sizes are necessary to further validate the results.

目的分析不植骨的骨刀窦底提升（OSFE）术后帐篷空间的三维稳定性和形态变化：这项回顾性研究共纳入了 46 个使用 OSFE 技术植入的种植体，同时植入种植体时未进行植骨。在术前和术后48个月的随访中，对植入的上颌窦进行了锥形束计算机断层扫描（CBCT）。通过三维虚拟重建和 CBCT 扫描的叠加，勾勒出上颌窦腔的轮廓。测量了蝶窦空间的三维变化。采用广义估计方程（GEE）来探讨潜在因素：种植体存活率为 97.8%。术后剩余帐幕空间的平均体积为 96.8 ± 70.5 mm3，48 个月后缩小至 31.0 ± 24.9 mm3，剩余帐幕空间体积的平均百分比降至 29.1 ± 20.7%。帐篷间隙体积和剩余帐篷间隙体积百分比仅在术后 12 个月内显著下降（p = .008, .013）。GEE 结果表明，剩余帐幕空间体积百分比与种植体突出长度（p = .000）和根尖高度（p = .000）呈正相关，与术后即刻的窦底面积（p = .002）和愈合时间（p = .022）呈负相关：结论：在不植骨的情况下，OSFE术后窦腔体积迅速缩小。有几个因素可能会影响帐篷间隙的稳定性。为了进一步验证结果，有必要进行样本量更大的长期临床试验。

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引用次数: 0

Factors influencing speech improvement following maxillary complete-arch implant-supported restorations: A retrospective study 影响上颌全牙弓种植体支撑修复术后言语改善的因素：回顾性研究

IF 4.8 1区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical Oral Implants Research

Pub Date : 2024-06-12 DOI: 10.1111/clr.14311

Yun Zhang, Hongwei Ding, Hanqi Gao, Jie Liu, Feng Wang, Yiqun Wu

Objective

This study explored factors affecting speech improvement in patients with an edentulous maxilla after the delivery of a complete-arch implant-supported fixed dental prosthesis (IFDP).

Materials and Methods

Patients who had received IFDP for edentulous maxilla were enrolled, and various potential speech improvement-related factors were considered, including patient demographics, anterior residual bone volume, preoperative facial features, preoperative acoustic parameters, and adaptation time. Acoustic analysis and perceptual ratings were used to assess three fricatives [s], [f], and [ɕ]. Correlation and regression analyses were conducted to assess the association between changes in fricatives and potential factors (α = .05).

Results

The study included 50 patients (18 females and 32 males, aged 50.62 ± 15.71 years, range 19–76). Significant correlations were found among the change in the center of gravity (ΔCoG) of [s] and anterior residual bone volume, zygomatic implants number and proportion (p < .05). These correlations were largely mirrored in the perceptual score (ΔPS) changes. After controlling for age, sex, preoperative acoustic parameters, and adaptation time, the ΔCoG and ΔPS of fricatives were mainly correlated with the anterior residual bone volume, preoperative acoustic parameters, and adaptation time.

Conclusion

Speech improvements post-IFDP delivery are mainly related to preoperative speech characteristics, anterior residual bone volume, and adaptation time. The residual bone volume's impact on consonants varies with specific articulatory gestures. This study provides insights into forecasting speech outcomes following IFDP restoration and provides recommendations and methods for data collection in developing future prediction models.

目的：本研究探讨了影响上颌无牙患者在接受全拱种植体支持固定义齿（IFDP）修复后语言能力改善的因素：本研究探讨了影响上颌无牙患者在接受全拱种植体支持固定义齿（IFDP）修复后语言能力改善的因素：研究考虑了各种潜在的语言改善相关因素，包括患者人口统计学特征、前部残余骨量、术前面部特征、术前声学参数和适应时间。声学分析和感知评分用于评估三个摩擦音[s]、[f]和[ɕ]。进行了相关和回归分析，以评估摩擦音的变化与潜在因素之间的关联（α = .05）：研究包括 50 名患者（18 名女性和 32 名男性，年龄为 50.62 ± 15.71 岁，范围为 19-76 岁）。研究发现，[s]的重心变化（ΔCoG）与前方残余骨量、颧骨种植体数量和比例之间存在显著相关性（p 结论：IFDP 术后的语音改善主要集中在前方残余骨量、颧骨种植体数量和比例上：IFDP 术后言语改善主要与术前言语特征、前方残余骨量和适应时间有关。残余骨量对辅音的影响因具体发音手势而异。本研究为预测 IFDP 修复后的言语效果提供了见解，并为今后开发预测模型提供了建议和数据收集方法。

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引用次数: 0

Material and abutment selection for CAD/CAM implant-supported fixed dental prostheses in partially edentulous patients – A narrative review 部分无牙颌患者的 CAD/CAM 种植体支持固定义齿的材料和基台选择 - 综述。

IF 4.8 1区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical Oral Implants Research

Pub Date : 2024-06-12 DOI: 10.1111/clr.14315

Malin Strasding, Laurent Marchand, Elizabeth Merino, Cristina Zarauz, João Pitta

Restorative material selection has become increasingly challenging due to the speed of new developments in the field of dental material science. The present narrative review gives an overview of the current indications for implant abutments and restoration materials for provisional and definitive implant-supported fixed dental prostheses in partially edentulous patients. For single implant restorations, titanium base abutments for crowns are suggested as an alternative to the conventional stock- and customized abutments made out of metal or zirconia. They combine the mechanical stability of a metallic connection with the esthetic potential of ceramics. For multiple-unit restorations, conical titanium bases especially designed for bridges are recommended, to compensate for deviating implant insertion axes and angulations. Even though titanium base abutments with different geometries and heights are available, certain clinical scenarios still benefit from customized titanium abutments. Indications for the definitive material in fixed implant restorations depend on the region of tooth replacement. In the posterior (not esthetically critical) zone, ceramics such as zirconia (3–5-Ymol%) and lithium-disilicate are recommended to be used in a monolithic fashion. In the anterior sector, ceramic restorations may be buccally micro-veneered for an optimal esthetic appearance. Lithium-disilicate is only recommended for single-crowns, while zirconia (3–5-Ymol%) is also recommended for multiple-unit and cantilever restorations. Attention must be given to the specific mechanical properties of different types of zirconia, as some feature reduced mechanical strengths and are therefore not indicated for all regions and restoration span lengths. Metal-ceramics remain an option, especially for cantilever restorations.

由于牙科材料科学领域的快速发展，修复材料的选择变得越来越具有挑战性。本综述概述了目前部分无牙颌患者临时性和确定性种植体支持固定义齿修复的种植基台和修复材料的适应症。对于单颗种植体修复，建议使用钛基台来替代传统的金属或氧化锆基台。它们结合了金属连接的机械稳定性和陶瓷的美学潜力。对于多单位修复，建议使用专为桥体设计的锥形钛基台，以补偿种植体插入轴和角度的偏差。尽管有不同几何形状和高度的钛基台可供选择，但在某些临床情况下，定制化的钛基台仍会使患者受益。固定种植修复体的基底材料的适应症取决于牙齿替换的区域。在后牙区（不影响美观），建议使用氧化锆（3-5-Ymol%）和二硅酸锂等陶瓷作为整体材料。在前牙区，为了获得最佳的美学外观，陶瓷修复体可以在颊侧微织。二硅酸锂仅推荐用于单冠，而氧化锆（3-5-Ymol%）也推荐用于多单位和悬臂修复。必须注意不同类型氧化锆的具体机械性能，因为有些氧化锆的机械强度较低，因此并不适用于所有区域和修复体的跨度长度。金属陶瓷仍然是一种选择，尤其是在悬臂修复中。

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引用次数: 0

Public speaking and leadership in implant dentistry: Have these skills been overlooked? 种植牙科中的公开演讲和领导力：这些技能是否被忽视了？

IF 4.8 1区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical Oral Implants Research

Pub Date : 2024-06-12 DOI: 10.1111/clr.14262

Lucrezia Paterno’ Holtzman, João Pitta, Iva Milinković, Miha Pirc, Pierluigi Romandini, Maria-Angeliki Alexopoulou, Kathrin Becker, Balazs Feher, Nikolay Makarov, Pavel Scarlat, Ignacio Sanz-Sánchez

Objective

To describe the speaker and leadership development seminars during the 2023 EAO Summer Camp (SC).

Materials and Methods

In September 2023, 24 participants joined the SC organized by the EAO Junior Committee (JC) in Lisbon, focused on enhancing public speaking and leadership skills. Facilitated by two experienced trainers, the program aimed to evaluate the participants' progress through pre-, post-training “immediate” and “delayed” (3 months after the event) anonymous questionnaires. The JC formulated a survey (JCS) addressing aspects of public speaking, presentation skills and leadership, how important the participants considered them and what type of training in this field they had received thus far.

Results

Twenty-three participants responded to the pre- and immediate post-training surveys, 22 completed the delayed post-training survey and 20 completed the JCS. The findings revealed increased confidence and comfort in public speaking post-event, with sustained improvements over time, accompanied by positivity, pleasant feelings, and increased camaraderie. Post-training delayed results also showed that reduced symptoms of anxiety before a speech were reported. The JCS highlighted that many participants had not properly acquired public speaking skills during university. Similarly, 19 out of 20 participants felt that leadership skills were important in contemporary dentistry but not properly taught in dental school curriculums.

Conclusions

The 2023 EAO SC was a successful event providing advanced training in leadership and public speaking skills. However, a notable number of young dentists continue to experience anxiety when faced with presentations, indicating a potential need for additional training to relieve stress and enhance confidence.

2023年9月，24名学员参加了由里斯本欧洲文化组织青年委员会（JC）组织的夏令营，重点是提高公开演讲和领导技能。在两位经验丰富的培训师的指导下，该计划旨在通过培训前、培训后的 "即时 "和 "延迟"（活动结束后 3 个月）匿名问卷来评估参与者的进步。联合协调委员会制定了一份调查问卷（JCS），内容涉及公众演讲、演讲技巧和领导力的各个方面，参与者认为这些方面有多重要，以及他们迄今为止在这一领域接受过哪些类型的培训。23 名参与者回答了培训前和培训后的即时调查，22 人完成了培训后的延迟调查，20 人完成了 JCS。调查结果显示，学员在活动后的公开演讲中增强了自信心和舒适感，并随着时间的推移持续改善，同时还表现出积极、愉快的情绪，并增进了友情。培训后的延迟结果还显示，演讲前的焦虑症状有所减轻。联合调查强调，许多学员在大学期间没有正确掌握公开演讲的技巧。同样，20 位参与者中有 19 位认为领导技能在当代口腔医学中非常重要，但牙科学校的课程中却没有适当教授领导技能。然而，仍有相当数量的年轻牙科医生在面对演讲时感到焦虑，这表明可能需要额外的培训来缓解压力和增强自信。

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引用次数: 0