I. Giraldez

• PhD
• Professor (Assistant) at Rey Juan Carlos University

Dental caries is the major biofilm-mediated oral disease in the world. The main treatment to restore caries lesions consists of the use of adhesive resin composites due to their good properties. However, the progressive degradation of the adhesive in the medium term makes possible the proliferation of cariogenic bacteria allowing secondary caries t...

Dental caries is the major biofilm-mediated oral disease in the world. The main treatment to restore the caries lesions consist of the use of adhesive resin composites due to their good properties. However, the progressive degradation of the adhesive in the medium term makes possible the proliferation of cariogenic bacteria allowing secondary carie...

Objectives: To evaluate the effect of the application of an additional hydrophobic bonding resin on the clinical performance of a universal adhesive applied in etch-and-rinse (ER) or self-etch adhesive (SE) strategy in non-carious cervical lesions (NCCLs) after 5 years. Materials and methods: Scotchbond Universal Adhesive (3M Oral Care) was appl...

Objectives To evaluate the effect of the application of an additional hydrophobic bonding resin on the clinical performance of a universal adhesive applied in etch-and-rinse (ER) or self-etch adhesive (SE) strategy in non-carious cervical lesions (NCCLs) after 5 years. Materials and Methods Scotchbond Universal Adhesive (3M Oral Care) was applied i...

Objectives To evaluate if the addition of a layer of a hydrophobic bonding resin to the recommended application sequence of a universal adhesive improves the respective clinical behavior in non-carious cervical lesions (NCCLs) after 36 months. Materials and methods Scotchbond Universal Adhesive (SBU, 3M Oral Care) was applied in NCCLs of 39 subjec...

Background: The first state of alarm due to COVID-19 in Spain led to limit dental treatment exclusively to emergencies. The objective of the survey was to evaluate the amount and type of emergencies attended during this period, as well as to know how they were solved, and what measures were adopted to carry out dental care in these exceptional cir...

Objectives There are many works that have attempted to estimate the fracture toughness of enamel by indentation techniques using equations whose success in determining the actual value of fracture toughness, rely on a particular three-dimensional pattern consisting of cracks growing from the edges of the indentation. Recently, an alternative method...

Objectives: The aim of this study was to compare the one-year clinical performance of three restorative systems, which included a novel low-shrinkage composite and two bonding strategies. Materials and methods: Twenty-five patients received three Class I (occlusal) or Class II restorations performed with one of three restorative systems: Filtek...

Objectives: To determine the effect of 38% hydrogen peroxide bleaching agent on enamel fracture toughness (Kc) immediately, after 24h, and after one week by nanoindentation and scanning electronic microscope (SEM). Methods: Four recently extracted bovine incisors were selected and polished using a mechanical grinder (Labopol-5, Struers) on polish...

Objectives: The aim of this study was to compare the 1-year clinical performance of three restorative systems, which included a novel low-shrinkage composite and two bonding strategies. Methods: Twenty-five patients received three Class I (occlusal) or Class II restorations performed with one of three restorative systems: Filtek Silorane Restorat...

Tooth enamel is a hybrid organic–inorganic bionanocomposite comprised predominantly of enamel rods. Understanding the effects of bleaching treatment on the biomechanical properties of this tissue is essential for clinical applications. Accordingly, this study is focused on the wear behaviour of the enamel using nanoscratch tests when a 38% hydrogen...

To determine the influence of curing mode on the surface hardness of seven resin cements used to lute indirect composite restorations. Seven commercial dual-curing resin cements were tested: two were total-etch (RelyX ARC [3M ESPE, St. Paul, MN, USA] and Variolink II [Ivoclar Vivadent, Schaan, Liechtenstein]); one was self-etch (Multilink Automix [...

Objectives: To study the effect of artificial aging on the mechanical/structural properties of three Zr-based materials. Methods: Discs (d=13.0mm; h=1.20.2mm) were prepared from three materials: (1) Lava, a 3Y-TPZ material (3M ESPE); (2) IPS e.max ZirCAD (IPS), a 3Y-TPZ material (Ivoclar Vivadent); (3) NanoZr, a Ce-ZrO2/Al2O3 material (Matsushita...

Objectives: To determine the effect of 38% hydrogen peroxide bleaching agent on enamel roughness immediately after the treatment and after one week in artificial saliva with Atomic Force Microscopy (AFM). Methods: Five recently extracted bovine incisors were selected and polished using a mechanical grinder (Labopol-5, Struers, Copenhagen, Denmark...

Objective: To analyze the influence of cavity configuration factor (C-factor) on the microtensile bond strength (-TBS) of a total-etch resin cement and a self-adhesive resin cement when used to lute indirect composite restorations. Methods: Human extracted molars were selected and divided in two groups. In the first group flat dentin surfaces wer...

The obtaining of mechanical properties as elastic modulus and hardness of enamel and dentin has been an important topic of study in material science. Due to the small size of the samples, nanoindentation test becomes an ideal technique for determining the mechanical properties of these structures. Despite numerous studies, there is no agreement on...

This work was carried out with the aim of To determine if the superficial hardness of four resin cements is affected by the mode of cure and the post curing.