Zirconia abutments in the anterior region: A systematic review of mechanical and esthetic outcomes

Naveau, Adrien; Rignon-Bret, Christophe; Wulfman, Claudine

doi:10.1016/j.prosdent.2018.08.005

Cited by 72 publications

(68 citation statements)

References 39 publications

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“…It has often been proposed that acid etching using 70% perchloric acid after the creation of artificial defects simulates more realistic bone defects (Hilgenfeld et al, 2018;Pinheiro et al, 2015;Umetsubo et al, 2012). The present study differed in one respect from other investigations in this field, which is that implant res- the clinical relevance of our study, we chose a conventional titanium abutment because this is most commonly used for abutments (Naveau, Rignon-Bret, & Wulfman, 2019). We selected monolithic zirconia for the crown material.…”

Section: Discussionmentioning

confidence: 99%

“…Liedke et al have confirmed implant abutment material has an important effect on bone assessment in CBCT (Liedke et al, ). To improve the clinical relevance of our study, we chose a conventional titanium abutment because this is most commonly used for abutments (Naveau, Rignon‐Bret, & Wulfman, ). We selected monolithic zirconia for the crown material.…”

Section: Discussionmentioning

confidence: 99%

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In vitro diagnostic accuracy of low‐dose CBCT for evaluation of peri‐implant bone lesions

Schwindling

Hilgenfeld

Weber

et al. 2019

Clinical Oral Implants Res

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Objectives To investigate the in vitro diagnostic accuracy of low‐dose cone‐beam computed tomography (LD‐CBCT) for the detection, classification, and measurement of peri‐implant bone lesions. Material and methods Titanium dental implants with all‐ceramic single crowns (n = 24) were inserted into bovine bone. At twelve implants, four types of peri‐implant bone lesions were created. Radiographic imaging was performed using three techniques: LD‐CBCT, high‐definition CBCT (HD‐CBCT), and intraoral radiography (IR). The datasets were presented twice to four observers in a random order. Diagnostic accuracy was measured by calculating sensitivity and specificity, and analyzed using the McNemar's test at a significance level of 0.05. Absolute agreement between the defect sizes was assessed by means of intraclass correlation coefficients (ICC). Results For all three techniques, diagnostic accuracy and reliability for the detection of defects were almost perfect. The following order was found for classification of the different defect types (sensitivity/specificity): HD‐CBCT (0.96/0.99) > LD‐CBCT (0.93/0.98) > IR (0.71/0.95). No significant difference was found between the two CBCT techniques. Their performance was superior to that of IR. With regard to absolute agreement of defect size, LD‐CBCT agreement with HD‐CBCT (ICC, 95% confidence interval) was slight for defect depth (0.342, 0.181–0.625) and substantial for defect width (0.911, 0.775–0.963). Conclusion Intraoral radiography is useful for detecting peri‐implant bone lesions. LD‐CBCT provides additional information regarding the geometry of defects. The even higher diagnostic accuracy of the HD‐CBCT protocol tested needs to be carefully weighed against its radiation dose, which is 14 times higher than that of LD‐CBCT.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

In vitro diagnostic accuracy of low‐dose CBCT for evaluation of peri‐implant bone lesions

Schwindling

Hilgenfeld

Weber

et al. 2019

Clinical Oral Implants Res

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“…The main issue that hampers the advances is related to the material of the secondary phase, which often is not widely available for use in the conditions of real production [33,34,36,37,40,44,89,103]. Besides, the material of the secondary phase can significantly change the appearance of ceramics, such as transparency and color, which directly affects and restricts the areas of its potential application [7,8,39,104].…”

Section: Discussionmentioning

confidence: 99%

“…Due to the excellent exploitation properties of ceramics [6,7] and according to the summary analysis of experts, the volume of the world ceramic market grows at an average annual rate of 9.2%, and by 2020, the market volume will reach $103 billion [8][9][10][11]. The trends for nanoceramics can be even more significant in further perspective.…”

Section: Introductionmentioning

confidence: 99%

On Electrical Discharge Machining of Non-Conductive Ceramics: A Review

et al. 2019

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The inability of ceramic and nanoceramic processing without expensive diamond tools and with a high-material-removal rate hampers the scope of its potential applications and does not allow humanity to make a full shift to the sixth technological paradigm associated with Kuhn scientific revolutions and Kondratieff's waves and restrains the growth of the economy. The authors completed a review on the research state of ceramic and nanoceramic processing by electrical discharge machining, which is possibly solved by two principal approaches associated with the usage of standard commercially available machine tools. The first approach is related to the introduction of expensive secondary phase; the second approach proposes initiate processing by adding auxiliary electrodes in the form of coating, suspension, aerosol, or 3D-printed layer based on the components of silver, copper, or graphite in combination with an improved dielectric oil environment by introducing graphite or carbon nanoparticles, which is hugely relevant today.Technologies 2019, 7, 55 2 of 16 of cutting tools limits the resulting geometry of the product. Other machining methods such as vibroacoustic machining, laser and electron beam scribing, selective laser sintering with a binder, find their specific place in the processing of ceramics. However, they do not allow the receiving of all geometrically possible shapes of the product without losses on the operational parameters of ceramics [16][17][18].One of the most popular methods for the production of parts, regardless of their hardness, is electrical discharge machining (EDM). However, it requires the material to be conductive [19][20][21]. The process of electrical erosion of the material consists of initiating electric pulses in the interelectrode gap, in the breakdown of the dielectric medium in the gap, in establishing a discharge channel, where the temperature reaches more than 10,000 • C (low-temperature plasma). Due to such temperatures, the material is ablated, the drops of cooled material as eroded debris are washed away by the flow of the dielectric medium, and the electrodes again approach to resume the cycle. Thus, a unique crater-like topology on the surface of the workpiece is created [22][23][24][25].The inability of ceramics and nanoceramics to conduct current hampers the scope of its potential applications and restrains the growth of the progress and the switch to the next technological paradigm that most of the scientists associate with the term "nano" [26][27][28][29][30][31][32].Thus, it can be concluded that the study and development of a method for electrical discharge machining of non-conductive ceramics and nanoceramics are incredibly relevant today.The authors propose to apply the dialectical approach of cognition as a scientific approach to solve the formulated scientific problem. The dialectical approach includes the systematization and updating of existing knowledge and new data about the object of research.

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“…Recently, Zirconia has been tested showing excellent hardness [ 4 ], marginal fit [ 5 ], and bond strength [ 6 ]. Nevertheless, restoration with a zirconia crown is a challenging treatment, and clinical problems related to the zirconia crown may decrease the retention form and clinical performance of this restoration [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Retention and Clinical Performance of Zirconia Crowns: A Comprehensive Review

Soleimani

Jalali

Mostafavi

et al. 2020

International Journal of Dentistry

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Zirconia has been used for rehabilitation of edentulous spaces approximately for a decade, and there have been several reports regarding the clinical performance and retention of zirconia crowns. Outstanding mechanical properties, biocompatibility, and excellent aesthetics make zirconia-based crowns as a popular crown among the current all-ceramic crowns in restorative dentistry. However, restoration with a zirconia crown is a challenging treatment. The goal of this study was to assess the current literature to summarize the studies reporting the effective risk factors on retention of zirconia crowns to provide clinicians with a useful point of view in the decision-making process for use of these restorations. Literature based-search was performed to find related articles until August 2020 using EMBASE, Google Scholar, and MEDLINE. Search terms used were “zirconia restorations properties,” “zirconia crowns clinical performance,” “zirconia crown survival,” “biological complications,” and “zirconia crown retention.” Results were limited to papers available in English. The references of all related literature were also searched for further citations. Overall, although clinical long-term and follow-up studies are a vital requirement to conclude that zirconia has great reliability, it seems that zirconia crown restorations are both well tolerated and sufficiently resistant.

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Zirconia abutments in the anterior region: A systematic review of mechanical and esthetic outcomes

Cited by 72 publications

References 39 publications

In vitro diagnostic accuracy of low‐dose CBCT for evaluation of peri‐implant bone lesions

In vitro diagnostic accuracy of low‐dose CBCT for evaluation of peri‐implant bone lesions

On Electrical Discharge Machining of Non-Conductive Ceramics: A Review

Retention and Clinical Performance of Zirconia Crowns: A Comprehensive Review

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