Estudio a medio plazo de las restauraciones directas en dientes posteriores

Remineralization effects of conventional and experimental ion-releasing materials in chemically or bacterially-induced dentin caries lesions

Abstract Objectives The aim of this study was to evaluate the remineralization effects of conventional and experimental ion-releasing materials on different artificial dentin carious lesions. Methods Forty human dentin discs were submitted to different demineralization protocols for simulated caries lesion: (D1) Shallow chemically-induced caries, (D2) deep chemically-induced caries, (D3) deep bacterially-induced caries. Each disc was divided in five parts; one of those served as baseline control. The remaining parts of each disc (n = 12–16/group) were treated using the following materials: EXP, an experimental resin-based bioactive material consisting of a self-etch primer and an adhesive c…

Effect of ozone therapy upon clinical and bacteriological parameters of the oral cavity: an update

Objective: To review the literature on ozone therapy in oral health, as assessed by different clinical and bacteriological parameters. Material and methods: A PubMed literature search was made using the key words “ozone dental”, and establishing as limits “randomized controlled trial” and “dental journal”. Thirteen articles were identified, with access to only 6 of them. Results: Four studies used ozone for the treatment of caries. One study examined its effect upon dental hypersensitivity, while another evaluated the efficacy of ozone as a tooth whitening technique. Five studies explored the bacteriological actions of ozone therapy in reference to different types of bacteria. Conclusion: T…

The effect of dentine pre-treatment using bioglass and/or polyacrylic acid on the interfacial characteristics of resin-modified glass ionomer cements.

Objective To evaluate the effect of load-cycle aging and/or 6 months artificial saliva (AS) storage on bond durability and interfacial ultramorphology of resin-modified glass ionomer cement (RMGIC) applied to dentine air-abraded using Bioglass 45S5 (BAG) with/without polyacrylic acid (PAA) conditioning.Methods RMGIC (Ionolux, VOCO) was applied onto human dentine specimens prepared with silicon-carbide abrasive paper or air-abraded with BAG with or without the use of PAA conditioning. Half of bonded-teeth were submitted to load cycling (150,000 cycles) and half immersed in deionised water for 24 h. They were cut into matchsticks and submitted immediately to microtensile bond strength (μTBS) …

Aesthetic dentistry : chromatic appreciation in the clinic and the laboratory

La demanda estética en Odontología va en aumento, una de sus bases es la correcta selección del color de las restauraciones. El color es una cualidad que se ve modulada por una serie de factores ambientales e individuales que el clínico debe conocer. La valoración ocular del color, puede inducir a error de apreciación si no se sigue un protocolo correcto de iluminación, y técnica de observación los autores lo revisan, simplificándolo con un enfoque práctico. Recientemente, han aparecido instrumentos de medición del color que intentan corregir los defectos de la técnica convencional. Aesthetic requirement in dentistry is getting more and more important every day. One of its basic principles …