RESUMEN
Tooth extraction is the most common procedure in dental practice. However, in the long term, it may cause alveolar ridge atrophy. This systematic review aimed to evaluate the role of platelet-rich fibrin (PRF) in post-exodontic alveolar ridge preservation in terms of its effectiveness in the regeneration of bone tissue as assessed by imaging and its efficacy compared to physiological bone healing. The study is presented in accordance with the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. This systematic review was conducted using electronic databases such as PubMed, Scopus, Web of Science, and Science Direct. The gray literature search was conducted in the New York Academy of Medicine Grey Literature Report. All the studies in this systematic review were randomized controlled trials (RCTs). The risk of bias was performed according to the Cochrane Handbook for Systematic Reviews of Interventions 6.2 (RevMan 6.2). Considering the inclusion and exclusion criteria, we included 17 randomized clinical trials published up to 2022 investigating the efficacy of PRF in post-exodontic bone regeneration. Based on the results of clinical studies, it can be stated that despite not being statistically significant, PRF promotes neoformation and prevents bone loss between three and four months post-extraction.
RESUMEN
RESUMEN Las resinas compuestas dentales fueron introducidas en la primera mitad del siglo XX como una avance mecánico- estético en el campo de la odontología restauradora, en respuesta a los silicatos, que hasta aquel entonces era el material restaurador de primera elección, dentro de su composición, posee una matriz orgánica formada por Bis- GMA y otros monómeros de dimetacrilato (TEGMA, UDMA, siloranos), que son susceptibles a la pigmentación de sustancias extrínsecas, en diferente grado , las bebidas más comunes como vino tinto, té, café y bebidas azucaradas Objetivo: Revisar y analizar la literatura disponible que responda a la pregunta ¿Cuáles son los factores extrínsecos más comunes que causan pigmentación de las resinas compuestas?
ABSTRACT Dental composite resins were introduced in the first half of the 20th century as a mechanical-aesthetic advance in the field of restorative dentistry, as a response to silicates, which at that time was the first choice restorative material, composite resin contains a matrix of organic made up of Bis-GMA and other dimethacrylate monomers (TEGMA, UDMA, silorans) doing them susceptible to pigmentation with extrinsic substances, in this case drinks, such as red wine, tea and coffee are the main cause of the pigmentation of resins. Objective: To Review and analyze the available literature that answers the question: what are the most common extrinsic factors that cause pigmentation of composite resins?