Preheated acid associated with silane and electric current in the adhesion of the resin cement to ceramic
Gustavo Belmiro Casaburi,
Marcos Henrique Ramos da Silva,
Lourenço Correr-Sobrinho
et al.
Abstract:This study verified the effect of the combination of preheated hydrofluoric acid/silane/electric current in the adhesion of the resin cement to ceramic. IPS E.max Press ceramic discs embedded in PVC rigid tubes were divided into four groups associating preheated hydrofluoric acid and silane applied with electrical current (n=10): Ha+S (Heated acid + silane); Ha+S+Ec (Heated acid + silane + electrical current); A+S (Acid + silane) and A+S+Ec (Acid + silano + electrical current). Resin cement/ceramic samples wer… Show more
“…Adhesive fracture was predominant in all groups and evaluation moments. The Ha+S and A+S groups presented higher contact angle values compared to the Ha+S+Ec and A+S+Ec groups with lower values [7].…”
Section: Major Outcomesmentioning
confidence: 80%
“…The composite resin to be used should be applied, choosing the appropriate material for each case [2,3]. Some work, analyzing the relevance of various chemical and mechanical treatments in old composite resins and repair bond strength, concluded that the improvement in the bond strength between the new and the old composite resin restoration requires increased harshness to institute micromechanical union between the surface of the old composite resin and the resin together [4,5].…”
Section: Major Outcomesmentioning
confidence: 99%
“…The use of drills, followed by acid etching and application of adhesive, appears to be used by more than 80% of dentists as a pre-treatment of the old composite to be repaired. In vitro data can help elucidate whether silane treatment of composite resin surfaces before repair is indispensable [3][4][5].…”
Section: Introductionmentioning
confidence: 99%
“…However, for the conditioned groups there was no difference between the silane and the silane associated with dentin adhesive. Acid etching of porcelain significantly increased strength in all bonding methods and was the main contributor to the values obtained [2][3][4].…”
Introduction: Dental restorations are often placed due to caries or fractures, and composite resin is often the material of choice to restore teeth. Several factors may play a role related to the application of silane coupling agents, such as the type of silane (hydrolyzed or non-hydrolyzed) and the service life of the defective composite resin restoration being repaired. Objective: It was to analyze the main outcomes of clinical and experimental studies to highlight the importance of using silane in composite resin restorations in modern dentistry. Methods: The PRISMA Platform systematic review rules were followed. The search was carried out from February to April 2024 in the Scopus, PubMed, Science Direct, Scielo, and Google Scholar databases. The quality of the studies was based on the GRADE instrument and the risk of bias was analyzed according to the Cochrane instrument. Results and Conclusion: A total of 111 articles were found, 36 articles were evaluated in full and 30 were included and developed in the present systematic review study. Considering the Cochrane tool for risk of bias, the overall assessment resulted in 30 studies with a high risk of bias and 22 studies that did not meet GRADE and AMSTAR-2. Most studies did not show homogeneity in their results, with X2=78.4%>50%. It was concluded that the previous application of silane reduced the bond strength values. The two-bottle adhesive showed better results than single-bottle or self-etching systems for composite resin repairs. Furthermore, the association of preheated hydrofluoric acid/silane applied or not with electric current promoted different values of micro shear resistance, types of fracture, and contact angles in the resin cement/ceramic connection. Silane application is essential for surfaces conditioned by hydrofluoric acid, but the use of adhesive is optional when silane is applied.
“…Adhesive fracture was predominant in all groups and evaluation moments. The Ha+S and A+S groups presented higher contact angle values compared to the Ha+S+Ec and A+S+Ec groups with lower values [7].…”
Section: Major Outcomesmentioning
confidence: 80%
“…The composite resin to be used should be applied, choosing the appropriate material for each case [2,3]. Some work, analyzing the relevance of various chemical and mechanical treatments in old composite resins and repair bond strength, concluded that the improvement in the bond strength between the new and the old composite resin restoration requires increased harshness to institute micromechanical union between the surface of the old composite resin and the resin together [4,5].…”
Section: Major Outcomesmentioning
confidence: 99%
“…The use of drills, followed by acid etching and application of adhesive, appears to be used by more than 80% of dentists as a pre-treatment of the old composite to be repaired. In vitro data can help elucidate whether silane treatment of composite resin surfaces before repair is indispensable [3][4][5].…”
Section: Introductionmentioning
confidence: 99%
“…However, for the conditioned groups there was no difference between the silane and the silane associated with dentin adhesive. Acid etching of porcelain significantly increased strength in all bonding methods and was the main contributor to the values obtained [2][3][4].…”
Introduction: Dental restorations are often placed due to caries or fractures, and composite resin is often the material of choice to restore teeth. Several factors may play a role related to the application of silane coupling agents, such as the type of silane (hydrolyzed or non-hydrolyzed) and the service life of the defective composite resin restoration being repaired. Objective: It was to analyze the main outcomes of clinical and experimental studies to highlight the importance of using silane in composite resin restorations in modern dentistry. Methods: The PRISMA Platform systematic review rules were followed. The search was carried out from February to April 2024 in the Scopus, PubMed, Science Direct, Scielo, and Google Scholar databases. The quality of the studies was based on the GRADE instrument and the risk of bias was analyzed according to the Cochrane instrument. Results and Conclusion: A total of 111 articles were found, 36 articles were evaluated in full and 30 were included and developed in the present systematic review study. Considering the Cochrane tool for risk of bias, the overall assessment resulted in 30 studies with a high risk of bias and 22 studies that did not meet GRADE and AMSTAR-2. Most studies did not show homogeneity in their results, with X2=78.4%>50%. It was concluded that the previous application of silane reduced the bond strength values. The two-bottle adhesive showed better results than single-bottle or self-etching systems for composite resin repairs. Furthermore, the association of preheated hydrofluoric acid/silane applied or not with electric current promoted different values of micro shear resistance, types of fracture, and contact angles in the resin cement/ceramic connection. Silane application is essential for surfaces conditioned by hydrofluoric acid, but the use of adhesive is optional when silane is applied.
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