Aesthetic Anterior Composite Restorations: A Guide to Direct Placement

Influence of surface sealant on the translucency of composite resin: effect of immersion time and immersion media

“…The discrepancy of this findings may be explained by the use of different methodologies, 1,3,7,21 in which it may be observed that authors employed the immersion of specimens in the solution continually for a determined period, without removing any time from it. However, since since this study aimed to simulate a clinical situation, specimens were immersed in staining solutions for 5 minutes each time, three times a day, and were left in artificial saliva for the rest of the day (totaling 24 hours).…”

“…The development of composite resin has been contributed to the incorporation of aesthetic aspects in direct dental restorations, satisfying the desires of patients who expect dentists to provide restorations that not only restore the original function and shape of their teeth but also meet the same color, thus being clinically imperceptible 1 . However, composite resin shows some undesirable characteristics, such as microleakage resultant from polymer shrinkage 2 , intrinsic discoloration and superficial staining, which may lead to color instability 3 .…”

“…The susceptibility to staining is related to various factors such as the type of organic matrix, particle size and its percentage in the material's composition, as well as the degree of polymerization, the time elapsed between the filling of the cavity and its finishing and polishing, the degree of smoothness, water sorption, type of staining agent and the length of time that this agent remains in contact with the material 1 . Other studies 6,7,8 has described the continuous degradation undergone in aesthetic restorations, indicating that this kind of material stains easily and its color stability, surface hardness and wear strength may be affected.…”

“…This material has a low viscosity and high wettability 9,10 and reduce some of the defects that restorations are subject, such as the marginal leakage 1,9 .In addition, this material provides restorations with a better superficial texture by penetrating into surface micro defects and increasing the smoothness of restored surfaces 4 . The literature offers few studies about the effect of surface sealant on the staining of composite resins when subjected to different staining agents.…”

Flexural Strength of Glass Carbomer Cement and Conventional Glass Ionomer Cement Stored in Different Storage Media over Time

“…The ability of the dentist to accomplish the desired result has been limited by certain basic factors such as the availability of suitable materials compatible with the hazards present in the oral cavity and the development of an appropriate process for their daily use. Ideally, a restorative material should have physical properties identical to those of the tooth and should also mimic it aesthetically [1]. During the first half of the 19th century, amalgam and gold were developed as viable restorative materials for dentistry [2].…”