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1.
Rev. ADM ; 76(3): 162-168, mayo-jun. 2019.
Article in Spanish | LILACS | ID: biblio-1022153

ABSTRACT

Objetivo: Analizar la evidencia disponible sobre los componentes de los adhesivos dentinarios, las causas de la falla de la interface dentinaadhesivo, las alternativas para disminuir este fenómeno y aumentar el tiempo de vida de las restauraciones adhesivas. Material y métodos: Se realizó una revisión de la literatura de tipo descriptiva, la búsqueda de artículos se llevó a cabo en diferentes bases de datos, bibliotecas electrónicas, buscadores académicos y búsqueda manual en revistas. Se revisaron 118 artículos, de los cuales se seleccionaron 68. Conclusiones: La adhesión dentinaria sufre degradación hidrolítica y degradación proteolítica; el acondicionado ácido de la dentina promueve la liberación de metaloproteinasas y con ello el inicio de la degradación de la interface dentino-adhesivo, por el momento los adhesivos con MDP brindan la mejor opción ya que presentan los mejores resultados para contrarrestar la degradación, además de encontrarse comercialmente al alcance de los profesionistas. Los sistemas que presentan una simplificación de la técnica en ocasiones pueden ir en detrimento de los resultados. Aún es necesario realizar investigación que conduzca a reducir la falla de la interface adhesiva a largo plazo y obtener restauraciones óptimas, duraderas y libres de microfiltraciones (AU)


Objective: Analyze the available evidence on the components of dentin adhesives, the causes of failure of the dentin-adhesive interface, the alternatives to reduce this phenomenon and increase the lifetime of adhesive restorations. Material and methods: A review of the descriptive literature was made, the search of articles was carried out in different databases, electronic libraries, academic search engines and manual search in journals. 118 articles were reviewed, of which 68 were selected. Conclusions: Dentin adhesion suffers from hydrolytic and proteolytic degradation; the acid conditioning of dentine promotes the release of metalloproteinases and with it the beginning of the degradation of the dentin-adhesive interface, for the moment the adhesives with MDP offer the best option since they present the best results to counteract the degradation besides being commercially available to professionals. Simpli file Systems less can sometimes be detrimental to the results. It is still necessary to carry out investigations that leads to a reduction on the failure of the long-term adhesive interface and obtain optimal, durable and microfiltration-free restorations (AU)


Subject(s)
Acid Etching, Dental , Dentin-Bonding Agents , Metalloproteases , Epidemiology, Descriptive , Dental Restoration Failure , Dental Leakage
2.
Archives of Orofacial Sciences ; : 95-104, 2017.
Article in English | WPRIM | ID: wpr-629094

ABSTRACT

The present study compared and evaluated the shear bond strength (SBS) of two types of glass ionomer cement (GIC), Riva Self Cure HVTM (SDI Ltd., Victoria, Australia) and GC Fuji IX GP EXTRATM (GC America Inc., Alsip, USA) with and without the use of Riva Bond LCTM (SDI Ltd., Victoria, Australia), a lighted cured resin-modified glass ionomer cement (RMGIC) universal adhesive. Sixty extracted sound premolars with prepared exposure of the dentine on the occlusal surface were randomly assigned into four groups according to the tested restorative materials. Shear bond strength (SBS) tests were performed by using the Shimadzu Universal Testing Machine at a crosshead speed of 0.5 mm/minute, and the values obtained were statistically analysed using one-way ANOVA and Tukey tests. The inter-group comparison showed statistically significant differences in the SBS values between all the test groups (p 80%) compared to higher cohesive failures found in the non-adhesive groups (>86%). A Spearman's rho correlation test performed to determine the association between SBS values and mode of failures had indicated positive correlations between the adhesive failure and SBS values in the adhesive groups (rs=0.86, p<0.001; rs=0.85, p<0.001) and the cohesive failure and SBS values in the non-adhesive groups (rs=0.87, p<0.001). These findings support the improvement in adhesion of GICs to tooth structure with the use of RMGIC adhesive.


Subject(s)
Glass Ionomer Cements
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