scholarly journals Adhesion to Zirconia: A Systematic Review of Surface Pretreatments and Resin Cements

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2751
Author(s):  
Rubén Comino-Garayoa ◽  
Jesús Peláez ◽  
Celia Tobar ◽  
Verónica Rodríguez ◽  
María Jesús Suárez
Keyword(s):  
Systematic Review ◽  
Artificial Aging ◽  
Meta Analysis ◽  
Resin Cement ◽  
Air Abrasion ◽  
Surface Pretreatment ◽  
Adhesive Cementation ◽  
The One ◽  
Focus Question ◽  
Adhesive Cement

This systematic review aims to evaluate the different pretreatments of the zirconia surface and resin cement in order to determine a valid operative protocol for adhesive cementation. Methodologies conducted for this study followed the Prisma (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) guidelines. An electronic search was performed in four databases. The established focus question was: “What type of surface conditioning method is the one that obtains the best adhesion values to zirconia over time by applying a resin cement?” Forty-five relevant papers were found to qualify for final inclusion. In total, 260 different surface pretreatment methods, mainly combinations of air-abrasion protocols and adhesive promoters, were investigated. Altogether, the use of two artificial aging methods, three types of cement and four testing methods was reported. The results showed that mechanicochemical surface pretreatments offered the best adhesive results. Self-adhesive cement and those containing 10-MDP obtained the best results in adhesion to zirconia. Artificial aging reduced adhesion, so storage in water for 30 days or thermocycling for 5000 cycles is recommended. A standardized adhesive protocol has not been established due to a lack of evidence

scholarly journals Well-Being and Romantic Relationships: A Systematic Review in Adolescence and Emerging Adulthood

2019 ◽  
Vol 16 (13) ◽  
pp. 2415 ◽  
Author(s):  
Mercedes Gómez-López ◽  
Carmen Viejo ◽  
Rosario Ortega-Ruiz
Keyword(s):  
Systematic Review ◽  
Romantic Relationships ◽  
Emerging Adulthood ◽  
Emerging Adults ◽  
Meta Analysis ◽  
Well Being ◽  
The Other ◽  
The One ◽  
Definition Of ◽  
The Relationship

Adolescence and emerging adulthood are both stages in which romantic relationships play a key role in development and can be a source of both well-being and negative outcomes. However, the limited number of studies prior to adulthood, along with the multiplicity of variables involved in the romantic context and the considerable ambiguity surrounding the construct of well-being, make it difficult to reach conclusions about the relationship between the two phenomena. This systematic review synthesizes the results produced into this topic over the last three decades. A total of 112 studies were included, following the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P) guidelines. On the one hand, these works revealed the terminological heterogeneity in research on well-being and the way the absence of symptoms of illness are commonly used to measure it, while on the other hand, they also showed that romantic relationships can be an important source of well-being for both adolescents and emerging adults. The findings underline the importance of providing a better definition of well-being, as well as to attribute greater value to the significance of romantic relationships. Devoting greater empirical, educational, and community efforts to romantic development in the stages leading up to adulthood are considered necessary actions in promoting the well-being of young people.

scholarly journals Effect of laser irradiation on bond strength between zirconia and resin cement or veneer ceramic: A systematic review and meta-analysis

2021 ◽  
Vol 21 (2) ◽  
pp. 125
Author(s):  
SandroBasso Bitencourt ◽  
LetíciaChaves Ferreira ◽  
LeticiaCerri Mazza ◽  
DanielaMicheline dos Santos ◽  
AldierisAlves Pesqueira ◽  
...  
Keyword(s):  
Systematic Review ◽  
Bond Strength ◽  
Laser Irradiation ◽  
Meta Analysis ◽  
Resin Cement

scholarly journals One Abutment at One Time Concept for Platform-Switched Morse Implants: Systematic Review and Meta-Analysis

2018 ◽  
Vol 29 (1) ◽  
pp. 7-13 ◽  
Author(s):  
Joanes Silva Santos ◽  
Thiago de Santana Santos ◽  
Paulo Ricardo Saquete Martins Filho ◽  
Nadine von Krockow ◽  
Paul Weigl ◽  
...  
Keyword(s):  
Systematic Review ◽  
Bone Loss ◽  
Meta Analysis ◽  
Cochrane Collaboration ◽  
Pubmed Database ◽  
Prisma Statement ◽  
Bone Level ◽  
Marginal Bone Level ◽  
The One ◽  
The Cochrane Collaboration

Abstract The aim of this systematic review and meta-analysis was to compare the peri-implant vertical bone loss of immediate loading of implant crowns using the one abutment at one time (AOT) protocol and implants with abutment removal (AR). This systematic review with meta-analysis was reported according to the PRISMA statement, with guidance from the Cochrane Collaboration Handbook. A total of 103 publications were identified in the PubMed database and reference lists of examined articles. After the screening of titles and abstracts, the eligibility of eight full-text articles was assessed. Five studies published between 2010 and 2015 were included in the meta-analysis. There was less peri-implant vertical bone loss at implants using an AOT protocol than at implants using AR protocol (WMD -0.19, 95% CI -0.26 to -0.13; p<0.0001; random-effects model). In conclusion, the use of the AOT protocol with platform-switched Morse implants results in less bone loss than do AR procedures, but this effect may not be clinically relevant. The preservation of marginal bone level achieved with the AOT protocol may not enhance the aesthetics. These results should be interpreted with caution.

The Role of Resin Cement on Bond Strength of Glass-fiber Posts Luted Into Root Canals: A Systematic Review and Meta-analysis of In Vitro Studies

2014 ◽  
Vol 39 (1) ◽  
pp. E31-E44 ◽  
Author(s):  
R Sarkis-Onofre ◽  
JA Skupien ◽  
MS Cenci ◽  
RR Moraes ◽  
T Pereira-Cenci
Keyword(s):  
Systematic Review ◽  
Bond Strength ◽  
Meta Analysis ◽  
Resin Cement ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Root Canals ◽  
Fiber Posts ◽  
Glass Fiber Posts

SUMMARY Because there are several ways to cement glass-fiber posts (GFPs) into root canals, there is no consensus on the best strategy to achieve high bond strengths. A systematic review was conducted to determine if there is difference in bond strength to dentin between regular and self-adhesive resin cements and to verify the influence of several variables on the retention of GFPs. This report followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. In vitro studies that investigated the bond strength of GFPs luted with self-adhesive and regular resin cements were selected. Searches were carried out in the PubMed and Scopus databases. No publication year or language limit was used, and the last search was done in October 2012. A global comparison was performed between self-adhesive and regular resin cements. Two subgroup analyses were performed: 1) Self-adhesive × Regular resin cement + Etch-and-rinse adhesive and 2) Self-adhesive × Regular resin cement + Self-etch adhesive. The analyses were carried out using fixed-effect and random-effects models. The results showed heterogeneity in all comparisons, and higher bond strength to dentin was identified for self-adhesive cements. Although the articles included in this meta-analysis showed high heterogeneity and high risk of bias, the in vitro literature seems to suggest that use of self-adhesive resin cement could improve the retention of GFPs into root canals.

scholarly journals A New Approach to Social Entrepreneurship: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 13 (5) ◽  
pp. 2754
Author(s):  
Alejandro García-Jurado ◽  
José Javier Pérez-Barea ◽  
Rodrigo Nova
Keyword(s):  
Systematic Review ◽  
Social Entrepreneurship ◽  
Social Impact ◽  
Conceptual Development ◽  
Semantic Analysis ◽  
Meta Analysis ◽  
Future Research ◽  
Venture Philanthropy ◽  
Governmental Organization ◽  
The One

All social entrepreneurship experts state that the issue of definition is the main problem affecting research in this field. Although there is no single definition, this is clearly a new domain in the field of research on entrepreneurship. The main objective of this study is to further knowledge in this area by means of a systematic review of scientific literature to determine the conceptual development of social entrepreneurship and to identify the most interesting research trends. This study uses a research method, known as latent semantic analysis (LSA), which has been applied to a database of keywords collected from a rigorous selection of academic articles. The results show that this phenomenon has emerged from two parallel currents within the organization management field; on the one hand, the non-governmental organization (NGO) and voluntary tradition and, on the other, the world of business ethics and corporate social responsibility (CSR). The main lines of future research highlighted in the analysis include the measurement of social impact, venture philanthropy, and hybrid organizations.

scholarly journals A Review of Surface Treatment Methods to Improve the Adhesive Cementation of Zirconia-Based Ceramics

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Rodrigo Dalla Lana Mattiello ◽  
Tulio Marcos Kalife Coelho ◽  
Elizeu Insaurralde ◽  
Alan Augusto Kalife Coelho ◽  
Gustavo Pereira Terra ◽  
...  
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Resin Cement ◽  
Air Abrasion ◽  
Treatment Methods ◽  
Pubmed Database ◽  
Luting Cement ◽  
Adhesive Cementation ◽  
Short Time

In spite of high mechanical strength, zirconia-based ceramics (ZrO2) has poor bond strength after conventional bond cementation procedures, requiring different surface treatment methods (STMs). This review gathered information about the STM for adhesive cementation (AC) to ZrO2 in the PubMed database, considering in vitro studies pertaining to AC for acid-resistant ceramics (ZrO2) limited to peer-reviewed papers published in English between 1965 and 2013 in dental journals. Different STMs have been proposed for ZrO2: air-abrasion (laboratory or chairside) with silica- (Si-) coated aluminum particles, the use of materials containing phosphate monomers, primer or silane application, laser irradiation, Si vapor phase deposition, and selective infiltration etching. In conclusion, STMs improve bond strength of resin luting cement to ZrO2 mainly when tested in short time. STMs must be correlated to the type of ZrO2 and the resin cement.

scholarly journals Effect of Surface Treatment on Shear Bond Strength between Resin Cement and Ce-TZP/Al2O3

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Jong-Eun Kim ◽  
Jee-Hwan Kim ◽  
June-Sung Shim ◽  
Byoung-Duck Roh ◽  
Yooseok Shin
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Artificial Aging ◽  
Water Storage ◽  
Strength Reduction ◽  
Resin Cement ◽  
Air Abrasion ◽  
High Bond ◽  
High Bond Strength ◽  
Effect Of Surface

Purpose.Although several studies evaluating the mechanical properties of Ce-TZP/Al2O3have been published, to date, no study has been published investigating the bonding protocol between Ce-TZP/Al2O3and resin cement. The aim of this study was to evaluate the shear bond strength to air-abraded Ce-TZP/Al2O3when primers and two different cement types were used.Materials and Methods.Two types of zirconia (Y-TZP and Ce-TZP/Al2O3) specimens were further divided into four subgroups according to primer application and the cement used. Shear bond strength was measured after water storage for 3 days or 5,000 times thermocycling for artificial aging.Results.The Y-TZP block showed significantly higher shear bond strength than the Ce-TZP/Al2O3block generally. Primer application promoted high bond strength and less effect on bond strength reduction after thermocycling, regardless of the type of cement, zirconia block, or aging time.Conclusions.Depending on the type of the primer or resin cement used after air-abrasion, different wettability of the zirconia surface can be observed. Application of primer affected the values of shear bond strength after the thermocycling procedure. In the case of using the same bonding protocol, Y-TZP could obtain significantly higher bond strength compared with Ce-TZP/Al2O3.

Adhesive Cementation Promotes Higher Fatigue Resistance to Zirconia Crowns

2017 ◽  
Vol 42 (2) ◽  
pp. 215-224 ◽  
Author(s):  
F Campos ◽  
LF Valandro ◽  
SA Feitosa ◽  
CJ Kleverlaan ◽  
AJ Feilzer ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
Mean Value ◽  
Resin Cement ◽  
Surface Pretreatment ◽  
Inner Surface ◽  
Computer Aided ◽  
Mode Of Failure ◽  
Zirconia Crowns ◽  
Adhesive Cementation ◽  
Number Of Cycles

SUMMARY Objective: The aim of this study was to investigate the influence of the cementation strategy on the fatigue resistance of zirconia crowns. The null hypothesis was that the cementation strategy would not affect the fatigue resistance of the crowns. Methods and Materials: Seventy-five simplified molar tooth crown preparations were machined in glass fiber–filled epoxy resin. Zirconia crowns were designed (thickness=0.7 mm), milled by computer-aided design/computer-aided manufacturing, and sintered, as recommended. Crowns were cemented onto the resin preparations using five cementation strategies (n=15): ZP, luting with zinc phosphate cement; PN, luting with Panavia F resin cement; AL, air particle abrasion with alumina particles (125 μm) as the crown inner surface pretreatment + Panavia F; CJ, tribochemical silica coating as crown inner surface pretreatment + Panavia F; and GL, application of a thin layer of porcelain glaze followed by etching with hydrofluoric acid and silanization as crown inner surface pretreatment + Panavia F. Resin cement was activated for 30 seconds for each surface. Specimens were tested until fracture in a stepwise stress fatigue test (10,000 cycles in each step, 600 to 1400 N, frequency of 1.4 Hz). The mode of failure was analyzed by stereomicroscopy and scanning electron microscopy. Data were analyzed by Kaplan-Meier and Mantel-Cox (log rank) tests and a pairwise comparison (p&lt;0.05) and by Weibull analysis. Results: The CJ group had the highest load mean value for failure (1200 N), followed by the PN (1026 N), AL (1026 N), and GL (1013 N) groups, while the ZP group had the lowest mean value (706 N). Adhesively cemented groups (CJ, AL, PN, and GL) needed a higher number of cycles for failure than the group ZP did. The groups' Weibull moduli (CJ=5.9; AL=4.4; GL=3.9; PN=3.7; ZP=2.1) were different, considering the number of cycles for failure data. The predominant mode of failure was a fracture that initiated in the cement/zirconia layer. Finite element analysis showed the different stress distribution for the two models. Conclusion: Adhesive cementation of zirconia crowns improves fatigue resistance.

scholarly journals Effect of Instrumentation Techniques, Irrigant Solutions and Artificial accelerated Aging on Fiberglass Post Bond Strength to Intraradicular Dentin

2015 ◽  
Vol 16 (7) ◽  
pp. 523-530 ◽  
Author(s):  
Carlos Jose Soares ◽  
Carlos Estrela ◽  
Fernanda Ribeiro Santana ◽  
Júlio Almeida Silva ◽  
Ana Helena Gonçalves Alencar ◽  
...  
Keyword(s):  
Bond Strength ◽  
Artificial Aging ◽  
Accelerated Aging ◽  
Resin Cement ◽  
Strength Increase ◽  
Adhesive Resin ◽  
Rotary Instruments ◽  
Endodontically Treated Tooth ◽  
Niti Instruments ◽  
Adhesive Cement

ABSTRACT Objective To evaluate the effect of instrumentation techniques, irrigant solutions and specimen aging on fiberglass posts bond strength to intraradicular dentine. Materials and methods A total of 120 bovine teeth were prepared and randomized into control and experimental groups resulting from three study factors (instrumentation techniques, irrigant solutions, specimen aging). Posts were cemented with RelyX U100. Samples were submitted to push-out test and failure mode was evaluated under a confocal microscope. Results In specimens submitted to water artificial aging, nickel-titanium rotary instruments group presented higher bond strength values in apical third irrigated with NaOCl or chlorhexidine. Irrigation with NaOCl resulted in higher bond strength than ozonated water. Artificial aging resulted in significant bond strength increase. Adhesive cement-dentin failure was prevalent in all the groups. Conclusion Root canal preparation with NiTi instruments associated with NaOCl irrigation and ethylenediaminetetra acetic acid (EDTA) increased bond strength of fiberglass posts cemented with self-adhesive resin cement to intraradicular dentine. Water artificial aging significantly increased postretention. Clinical significance The understanding of factors that may influence the optimal bond between post-cement and cementdentin are essential to the success of endodontically treated tooth restoration. How to cite this article Santana FR, Soares CJ, Silva JA, Alencar AHG, Renovato SR, Lopes LG, Estrela C. Effect of Instrumentation Techniques, Irrigant Solutions and Artificial accelerated Aging on Fiberglass Post Bond Strength to Intraradicular Dentin. J Contemp Dent Pract 2015;16(7): 523-530.

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