scholarly journals Laser Use in Creating Orthodontic Adhesion to Ceramic Surfaces

2021 ◽  
Vol 11 (6) ◽  
pp. 2512
Author(s):  
Anca Labunet ◽  
Andreea Kui ◽  
Sorina Sava
Keyword(s):  
Hydrofluoric Acid ◽  
Surface Preparation ◽  
Good Alternative ◽  
Ceramic Surface ◽  
Ti:Sapphire Lasers ◽  
Ceramic Surfaces ◽  
Golden Standard ◽  
Laser Systems ◽  
Ceramic Crowns

Orthodontists must sometimes bond attachments to ceramic crowns, by using one of the surface preparations available, such as sandblasting or acid etching with hydrofluoric acid. Research shows that different laser systems may also be used for this purpose. The aim of this review is to determine which laser type and modality of use is the most effective in increasing shear bond strength of brackets bonded to ceramic surfaces. Two independent researchers studied the current literature 1990–2018 and selected original articles focusing on in vitro research on laser use for ceramic surface preparation for bonding metallic or ceramic attachments. Twelve articles have met the criteria and have been thoroughly revised, focusing on 2 fractional, Nd:Yag, Er:Yag, femtosecond and Ti:Sapphire lasers. There is little difference shown by the current studies between ceramic types and information on orthodontic bonding to non-feldspathic ceramics is scarce. Femtosecond laser is a good alternative to classical surface preparation with hydrofluoric acid. Nd:Yag laser is more suitable for surface preparation of ceramics than different types of Er:Yag lasers. Difference in laser power may achieve different results, but the golden standard for lasers use has not been found. Laser usage does not obtain the same results as hydrofluoric acid and cannot, so far, eliminate its application.

scholarly journals Comparison of Shear Bond Strength of Metal Brackets Bonded to Porcelain Surface using Different Surface Conditioning Methods: An in vitro Study

2012 ◽  
Vol 13 (4) ◽  
pp. 487-493 ◽  
Author(s):  
PV Girish ◽  
Uma Dinesh ◽  
CS Ramachandra Bhat ◽  
Pradeep Chandra Shetty
Keyword(s):  
Bond Strength ◽  
Hydrofluoric Acid ◽  
Shear Bond Strength ◽  
Orthodontic Brackets ◽  
Control Group ◽  
Ceramic Surface ◽  
Bond Failure ◽  
Surface Conditioning ◽  
Ceramic Surfaces

ABSTRACT Aim To evaluate and compare the shear bond strength of metal brackets bonded to ceramic surfaces using different conditioning methods and to assess the site of bond failure after debonding. Materials and methods A total of 70 ceramic surfaces were produced with uniform shape, size and composition. The samples were divided into 7 groups (each of 10 samples). Group 1 was the control group (untreated surface); in group 2 the surface were roughened with a diamond bur; in group 3 the surface were etched with hydrofluoric acid; in group 4 the surfaces were sandblasted; in group 5 the surfaces roughened with bur and silane applied; in group 6 the surfaces were etched with hydrofluoric acid and silane applied and in group 7 the surfaces were sandblasted and silane applied. To all the above groups, metal orthodontic brackets were bonded with light cure adhesive. The brackets were later stored in artificial saliva and incubated at 37°C (24 hours). The samples were then subjected to shear bond strength test using an Instron universal testing machine. The debonded porcelain surfaces were then studied under stereomicroscope to assess site of bond failure. Results Sandblasting the ceramic surface and silane application showed the highest bond strength. Stereomicroscope examination after debonding showed that the bond failure is at bracket-adhesive interface in four groups namely hydrofluoric acid, sandblasting, hydrofluoric acid with silane and sandblasting with silane. Conclusion Sandblasting with silane combination produced the highest shear bond strength, so it is a clinically suitable method for bonding orthodontic metal brackets onto ceramic surface. Clinical relevance Bonding orthodontic brackets to ceramic crowns of patients has been a tough task. In this study, different conditioning methods were used to treat the ceramic surfaces before bonding. The results showed that sandblasting the ceramic surface prior to application of silane produced the highest shear bond strength which is clinically suitable to reduce bond failures. How to cite this article Girish PV, Dinesh U, Bhat CSR, Shetty PC. Comparison of Shear Bond Strength of Metal Brackets Bonded to Porcelain Surface using Different Surface Conditioning Methods: An in vitro Study. J Contemp Dent Pract 2012;13(4):487-493.

scholarly journals Effects of different etching methods and bonding procedures on shear bond strength of orthodontic metal brackets applied to different CAD/CAM ceramic materials

2017 ◽  
Vol 88 (2) ◽  
pp. 221-226 ◽  
Author(s):  
S. Kutalmış Buyuk ◽  
Ahmet Serkan Kucukekenci
Keyword(s):  
Bond Strength ◽  
Hydrofluoric Acid ◽  
Shear Bond Strength ◽  
Ceramic Materials ◽  
Ceramic Surface ◽  
Bonding Agents ◽  
Ceramic Surfaces ◽  
Different Types ◽  
Cad Cam ◽  
Hybrid Ceramic

ABSTRACT Objective: To investigate the shear bond strength (SBS) of orthodontic metal brackets applied to different types of ceramic surfaces treated with different etching procedures and bonding agents. Materials and Methods: Monolithic CAD/CAM ceramic specimens (N = 120; n = 40 each group) of feldspathic ceramic Vita Mark II, resin nanoceramic Lava Ultimate, and hybrid ceramic Vita Enamic were fabricated (14 × 12 × 3 mm). Ceramic specimens were separated into four subgroups (n = 10) according to type of surface treatment and bonding onto the ceramic surface. Within each group, four subgroups were prepared by phosphoric acid, hydrofluoric acid, Transbond XT primer, and Clearfill Ceramic primer. Mandibular central incisor metal brackets were bonded with light-cure composite. The SBS data were analyzed using three-way analysis of variance (ANOVA) and Tukey HSD tests. Results: The highest SBS was found in the Vita Enamic group, which is a hybrid ceramic, etched with hydrofluoric acid and applied Transbond XT Adhesive primer (7.28 ± 2.49 MPa). The lowest SBS was found in the Lava Ultimate group, which is a resin nano-ceramic etched with hydrofluoric acid and applied Clearfill ceramic primer (2.20 ± 1.21 MPa). Conclusions: CAD/CAM material types and bonding procedures affected bond strength (P < .05), but the etching procedure did not (P > .05). The use of Transbond XT as a primer bonding agent resulted in higher SBS.

scholarly journals Influência da concentração de condicionamento do ácido hidrofluorídrico na adesão protética de cerâmicas vítreas: uma revisão sistemática

2021 ◽  
Vol 10 (2) ◽  
pp. e7810212093
Author(s):  
Millena Silva Cardoso ◽  
Laís Ferrante de Faria ◽  
Camila Moreira Lima ◽  
Fabíola Pessôa Pereira Leite ◽  
Laércio Almeida de Melo
Keyword(s):  
Acid Concentration ◽  
Systematic Reviews ◽  
Evidence Based Medicine ◽  
Hydrofluoric Acid ◽  
Web Of Science ◽  
Cochrane Library ◽  
Evidence Based ◽  
Ceramic Surface ◽  
Based Medicine

Objetivo: O objetivo dessa revisão sistemática foi avaliar a influência das diferentes concentrações do ácido hidrofluorídrico (HF) no condicionamento das cerâmicas vítreas. Materiais e Métodos: Esta revisão reuniu estudos in vitro a partir de buscas nas bases Cochrane Library, Lilacs, PubMed, SciElo, Scopus e Web of Science, através dos descritores “Veneers”, “Crowns”, “Ceramics”, “Ceramic”, “Surface Treatments”, “Surface”, “Hydrofluoric Acid Concentration”, “Acid Concentration”, “Adhesion”, “Hydrofluoric Acid”. Foram incluídos estudos que investigaram os efeitos da concentração do ácido hidrofluorídrico através de diferentes concentrações entre grupos. O nível de evidência dos artigos selecionados seguiu os princípios do Oxford Center for Evidence-Based Medicine. Esta revisão seguiu as recomendações do PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyzes). Resultados: As estratégias de busca encontraram 151 títulos, dos quais 8 foram eleitos e incluídos nessa revisão. Os parâmetros de avaliação incluíram a influência da concentração do ácido quanto a resistência a flexão, rugosidade superficial, ângulo de molhamento e resistência ao microcisalhamento. Nos estudos, as cerâmicas foram condicionadas com diferentes tipos de concentração e, no geral, o HF a 5% teve o melhor desempenho. Conclusão: Os estudos encontraram mais resultados negativos para as concentrações mais baixas (1% e 3%). Apesar de algumas vantagens, o HF a 10% também não teve os melhores resultados, os quais foram de autoria do HF a 5%. Além disso, a concentração não pode ser vista como o único e principal fator importante na qualidade de adesão das cerâmicas.

scholarly journals Influence of different treatments of the ceramic surface and thermal cycling on the bond strength of brackets to ceramic

2017 ◽  
Vol 46 (3) ◽  
pp. 179-183
Author(s):  
Fernando Guerra SÁEZ ◽  
Ana Rosa COSTA ◽  
Adriana Simoni LUCATO ◽  
Ana Paula Terossi de GODOI ◽  
Lourenço CORRER-SOBRINHO ◽  
...  
Keyword(s):  
Bond Strength ◽  
Thermal Cycling ◽  
Hydrofluoric Acid ◽  
Shear Bond Strength ◽  
Deionized Water ◽  
Acid Etching ◽  
Ceramic Surface ◽  
Thermal Cycler ◽  
Post Hoc

Abstract Objective To evaluate in vitro the effect of different treatments of the ceramic surface and thermal cycling on the shear bond strength (SBS) of metallic brackets bonded to feldspathic ceramic. Material and method Ceramic cylinders were divided into four groups (n=4) according to the treatment of ceramic surface: G1-Clearfil Ceramic Primer silane and Transbond XT (CCPT); G2-etched with 10% hydrofluoric acid (HFA) for 60 s, CCP and Transbond XT (ACCPT); G3-etched with 10% HFA for 60 s, Ambar Adhesive and Transbond XT (AAAT); and, G4 - etched with 10% HFA for 60 s, RelyX Ceramic Primer silane -RCP, adhesive primer Transbond and Transbond XT (ACPPT). Brackets were bonded to the cylinders with Transbond XT and light-activated for 40 s with LED Radii Plus. All specimens were stored in deionized water at 37 °C for 24 h, and two cylinders from each group were subject to 7,000 thermal cycles in a thermal cycler (5 °C/55 °C). After storage and thermal cycling, the SBS test was performed at a crosshead speed of 1 mm/min. Data were subjected to two-way ANOVA and Tukey’s post hoc test (α=0.05). Result The SBS of ACCPT was significantly higher than the other groups (p<0.05). The specimens submitted to thermal cycling showed significantly lower SBS than those without thermal cycling (p<0.05), regardless the ceramic surface treatment. The ARI showed predominance of score 0 for all groups. Conclusion Acid etching, CCP silane and Transbond XT method obtained the best results for bracket bonding. Thermal cycling reduced SBS for all groups. Score 0 was predominant for ARI in all groups.

scholarly journals Di-Silicate Dental Ceramic Surface Preparation by 1070 nm Fiber Laser: Thermal and Ultrastructural Analysis

2017 ◽  
Author(s):  
Carlo Fornaini ◽  
Federica Poli ◽  
Elisabetta Merigo ◽  
Nathalie Brulat-Bouchard ◽  
Ahmed El Gamal ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Peak Power ◽  
Surface Preparation ◽  
In Vitro Study ◽  
Optical Microscope ◽  
Ceramic Surface ◽  
Dental Ceramics ◽  
Total Energy Density ◽  
Pulsed Fiber Laser

Background: Lithium di-silicate dental ceramics bonding, realized by using different resins, is strictly dependent on micro-mechanical retention and chemical adhesion. The aim of this in vitro study was to investigate the capability of a 1070 nm fiber laser for their surface treatment. Methods: Samples were irradiated by a pulsed fiber laser at 1070 nm with different parameters (Peak Power from 5 kW to 5 kW, RR 20 kHz, speed from 10 to 50 mm/s, total Energy Density from 1.3 to 27 kW/cm2) and the thermal elevation during the experiment was recorded by a Fiber Bragg Grating (FBG) temperature sensor. Subsequently, the surface modifications were analysed by optical microscope, Scanning Electron Microscope (SEM) and Energy Dispersive X-ray Spectroscopy (EDS). Results: With a Peak Power of 5 kW, RR of 20 kHz and speed of 50 mm/s, the microscopic observation of the irradiated surface showed increased roughness with small areas of melting and carbonization. EDS analysis revealed that, with these parameters, there are no evident differences between laser-processed samples and controls. Thermal elevation during laser irradiation ranged between 5 &deg;C and 9 &deg;C. Conclusions: 1070 nm fiber laser can be considered as a good device to increase the adhesion of Lithium di-silicate ceramics.

The Influence of Surface Standardization of Lithium Disilicate Glass Ceramic on Bond Strength to a Dual Resin Cement

2011 ◽  
Vol 36 (5) ◽  
pp. 478-485 ◽  
Author(s):  
R Brum ◽  
R Mazur ◽  
J Almeida ◽  
G Borges ◽  
D Caldas
Keyword(s):  
Silicon Carbide ◽  
Bond Strength ◽  
Hydrofluoric Acid ◽  
Shear Bond Strength ◽  
Resin Cement ◽  
The Other ◽  
Ceramic Surfaces ◽  
Post Hoc ◽  
Diamond Paste

SUMMARY In vitro studies to assess bond strength between resins and ceramics have used surfaces that have been ground flat to ensure standardization; however, in patients, ceramic surfaces are irregular. The effect of a polished and unpolished ceramic on bond strength needs to be investigated. Sixty ceramic specimens (20×5×2 mm) were made and divided into two groups. One group was ground with 220- to 2000-grit wet silicon carbide paper and polished with 3-, 1-, and ¼-μm diamond paste; the other group was neither ground nor polished. Each group was divided into three subgroups: treated polished controls (PC) and untreated unpolished controls (UPC), polished (PE) and unpolished specimens (UPE) etched with hydrofluoric acid, and polished (PS) and unpolished specimens (UPS) sandblasted with alumina. Resin cement cylinders were built over each specimen. Shear bond strength was measured, and the fractured site was analyzed. Analysis of variance (ANOVA) and Tukey post hoc tests were performed. PE (44.47 ± 5.91 MPa) and UPE (39.70 ± 5.46 MPa) had the highest mean bond strength. PS (31.05 ± 8.81 MPa), UPC (29.11 ± 8.11 MPa), and UPS (26.41 ± 7.31 MPa) were statistically similar, and PC (24.96 ± 8.17 MPa) was the lowest. Hydrofluoric acid provides the highest bond strength regardless of whether the surface is polished or not.

scholarly journals Effect of Surface Cleaning Regimen on Glass Ceramic Bond Strength

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 389 ◽  
Author(s):  
Barbara Lapinska ◽  
Jacek Rogowski ◽  
Joanna Nowak ◽  
Joseph Nissan ◽  
Jerzy Sokolowski ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Ceramic ◽  
Hydrofluoric Acid ◽  
Orthophosphoric Acid ◽  
Secondary Ion Mass Spectrometry ◽  
Surface Cleaning ◽  
Ceramic Surface ◽  
Ceramic Surfaces ◽  
Ceramic Bond ◽  
Cleaning Methods

This study investigated the effect of saliva contamination on chemical changes of ceramic surface as well as the influence of saliva cleaning methods on ceramic-resin bond strength. Saliva was used to contaminate leucite (LGC) and lithium disilicate (LDGC) glass ceramic surfaces. The following cleaning methods were tested: water spray, cleaning with orthophosphoric acid, universal cleaning paste, ultrasonic cleaning with water, re-etching with hydrofluoric acid. Non-contaminated ceramic sample served as control. Chemical analysis of ceramic surfaces was performed using time-of-flight secondary ion mass spectrometry (TOF-SIMS). Shear bond strength (SBS) of ceramics to resin material was tested after 24-hour water storage and after thermocycling. The most effective cleaning method of saliva-contaminated ceramic surface was cleaning LGC surface with orthophosphoric acid or re-etching the LDGC surface with hydrofluoric acid. The application of the following methods resulted in obtaining reliable bond strength.

scholarly journals Effect of etching with different hydrofluoric acid concentrations on bond strength between glazed feldspathic ceramic and metal brackets

2016 ◽  
Vol 19 (1) ◽  
pp. 76
Author(s):  
Cristiane Frantz Arend ◽  
André Gundel ◽  
Renésio Armindo Grehs ◽  
Vilmar Antônio Ferrazzo ◽  
Luiz Felipe Valandro
Keyword(s):  
Contact Angle ◽  
Bond Strength ◽  
Hydrofluoric Acid ◽  
Shear Bond Strength ◽  
Adhesive System ◽  
Control Group ◽  
Ceramic Surface ◽  
Ceramic Surfaces ◽  
Angle Data ◽  
Significant Difference

<p><strong>Objective – </strong>The aim of this study was evaluate the effect of etching with different hydrofluoric acid (HF) concentrations on the shear bond strength between glazed feldspathic ceramic and metal brackets. <strong>Materials and Methods</strong> – Seventy-five blocks of glazed feldspathic ceramic were produced and randomly allocated to 5 groups: <strong>Ctrl-</strong> silane application only; <strong>HF1-</strong> HF1%+silane; <strong>HF3- </strong>HF3%+silane; <strong>HF5-</strong> HF5%+silane; <strong>HF10-</strong> HF10%+silane (standard procedures:  etching for 1 min + washing + drying + silanization). Metal brackets for upper central incisors (Edgewise Standard) were bonded on the ceramic surface with the use of an adhesive system and light-cured composite resin (Transbond<sup>TM</sup> XT, 3M). The specimens were aged for 60 days (thermocycling: 10000x at 5-55 °C; stored in distilled water at 37 °C). Shear testing was performed, and specimens were classified for their Adhesive-Remnant-Index (ARI). Topographical inspection and contact angle analysis of the etched ceramic surfaces were performed. Data were statistically analyzed using the non-parametric Kruskal-Wallis test. One-way ANOVA and post-hoc Tukey’s tests were applied to the contact angle data (p &lt; 0.05). <strong>Results</strong> – No significant difference was detected between the shear bond strength of the groups; but surface etching had a significant influence on the contact angle results (p &lt; 0.00001). The control group presented the highest mean contact angle (61.8 ± 17.2°). All specimens showed adhesive failure at the resin-ceramic interface. <strong>Conclusion –</strong> The tested HF concentrations did not significantly influence the obtained shear bond strength of metal brackets adhered to glazed feldspathic ceramic surfaces.</p><p><strong>Keywords</strong></p><p>Ceramics; Hydrofluoric acid; Adhesion; Brackets; Silanization.</p>

scholarly journals Tratamento de Superfície em Cerâmicas de Dissilicato de Lítio: uma Revisão de Literatura

2020 ◽  
Vol 24 (4) ◽  
pp. 422-425
Author(s):  
Gabriela Torres Zanin ◽  
Omar Geha ◽  
Ricardo Danil Guiraldo ◽  
Murilo Baena Lopes ◽  
Sandrine Bittencourt Berger
Keyword(s):  
Latin American ◽  
Hydrofluoric Acid ◽  
Preparation Method ◽  
Surface Preparation ◽  
Lithium Disilicate ◽  
Caribbean Literature ◽  
Electronic Library ◽  
Ceramic Surfaces ◽  
Final Sample ◽  
Wide Range

O preparo das superfícies cerâmicas é umas das etapas fundamentais para uma adesão duradoura e satisfatória no substrato dentário, garantindo o sucesso do tratamento. A escolha dos produtos corretos confere à prótese maior estabilidade após cimentação, evitando: infiltrações, cáries secundárias e deslocamento da peça cerâmica. Nos últimos tempos, vários protocolos para preparo das superfícies cerâmicas estão sendo usados em função da ampla oferta de produtos no mercado. Diante da diversidade de produtos disponíveis, esta revisão de literatura tem como objetivo mostrar, por meio de artigos, qual o protocolo mais seguro a ser seguido para a cimentação de cerâmicas de dissilicato de lítio. Realizou-se uma revisão de literatura baseada em artigos científicos publicados nas seguintes bases de dados: Scientific Electronic Library Online (SciELO), Medline: Pubmed e Literatura Latino-Americana e do Caribe em Ciências da Saúde (Lilacs), sendo a amostra final composta por vinte e seis estudos. Verificou-se que, para uma adesão adequada das cerâmicas de dissilicato de lítio ao substrato dentário, deve-se seguir o passo a passo do preparo da superfície, sendo a aplicação do ácido fluorídrico, seguido de silano e adesivo a opção mais segura. O modo simplificado de preparo, usando sistemas autocondicionantes pode ser promissor, porém mais estudos são necessários para comprovar sua eficácia.   Palavras-chave: Ácido Fluorídrico. Adesivos. Dissilicato de Lítio.   Abstract The  ceramic surfaces preparation is one of the fundamental steps for a lasting and satisfactory adhesion to the dental substrate, guaranteeing the success of the treatment. The  correct products choice gives the prosthesis greater stability after cementation, avoiding: infiltrations, secondary caries and e ceramic piece displacement. In recent times, several protocols for preparing ceramic surfaces have been used due to the wide range of products in  the market. Due to the diversity of products available, this literature review aims to show, through articles, which is the safest protocol to be followed for the cementation of lithium disilicate ceramics. A review was carried out based on scientific articles published in the databases: Scientific Electronic Library Online (SciELO), Medline: Pubmed and Latin American and Caribbean Literature in Health Sciences (Lilacs), with the final sample comprising twenty-six studies. It was found that, for an adequate lithium disilicate ceramics adhesion to the dental substrate, one must follow the step by  step of the surface preparation, with the hydrofluoric acid (HF) application, followed by silane and adhesive which is the safest option. The simplified  preparation method, using self-etching systems, can be promising, however, more studies are needed to prove its effectiveness.   Keywords: Hydrofluoric Acid. Adhesives. Lithium Disilicate.

Sign in / Sign up

Export Citation Format

Share Document