52 documents found, page 1 of 6
Effect of varying functional monomers in experimental self-adhesive composites:...
Ferreira, Marta Nunes; Neves Dos Santos, Marta; Fernandes, Inês; Marto, Carlos Miguel; Laranjo, Mafalda; Silva, Diana; Serro, Ana PaulaThe aim was to evaluate the effects of adding different functional monomers to experimental self-adhesive composites (SACs) on polymerization kinetics, cell metabolic activity, and sealing ability. SACs were formulated using urethane dimethacrylate as the base monomer and triethylene glycol dimethacrylate. Additionally, 10 wt.% of distinct functional monomers were added - 10-methacryloyloxydecyl dihydrogen phos...
Three-Dimensional Impression of Biomaterials for Alveolar Graft: Scoping Review
Francisco, Inês; Basílio, Ângela; Ribeiro, Madalena Prata; Nunes, Catarina; Travassos, Raquel; Marques, Filipa; Pereira, Flávia; Paula, Anabela BaptistaCraniofacial bone defects are one of the biggest clinical challenges in regenerative medicine, with secondary autologous bone grafting being the gold-standard technique. The development of new three-dimensional matrices intends to overcome the disadvantages of the gold-standard method. The aim of this paper is to put forth an in-depth review regarding the clinical efficiency of available 3D printed biomaterials...
Bulk-Fill Resins versus Conventional Resins: An Umbrella Review
Silva, Gonçalo; Marto, Carlos Miguel; Amaro, Inês; Coelho, Ana; Sousa, José Paulo; Ferreira, Manuel Marques; Francisco, InêsCurrently, composite resins have become the material of choice for the restoration of posterior teeth. Although bulk-fill resins represent a tempting alternative due to their lower complexity and faster use, some dentists are reluctant to use this material. The objective is to compare the performance of bulk-fill resins and conventional resins in direct restorations of posterior teeth based on the literature. T...
Microleakage Evaluation of Temporary Restorations Used in Endodontic Treatment-...
Paulo, Siri; Abrantes, Ana M.; Xavier, Mariana; Brito, Ana Filipa; Teixo, Ricardo; Coelho, Ana; Paula, Anabela; Carrilho, Eunice(1) Background: Coronal microleakage can lead to endodontic treatment failure. This study aimed to compare the sealing ability of different temporary restorative materials used during endodontic treatment. (2) Methods: Eighty sheep incisors were collected, uniformized in length, and access cavities were performed, except for in the negative control group, where the teeth were left intact. The teeth were divided...
Microleakage Study of a Bulk Fill over an Uncured Adhesive System
Pinto, Mariana Vaz; Pires, Salomé; Marto, Carlos Miguel; Amaro, Inês; Coelho, Ana; Sousa, José; Ferreira, Manuel Marques; Botelho, Maria FilomenaThis study aimed to evaluate and compare the microleakage of composite resin restorations under a total-etch adhesive system applied with two different techniques, with and without cure. Cavities were made on the buccal surface of twenty-six intact teeth and subsequently restored with bulk-fill flow composite resin (SDR®® flow+) and conventional resin (Spectra™ ST HV). Two experimental groups were created, one ...
The Biological Effects of 3D Resins Used in Orthodontics: A Systematic Review
Francisco, Inês; Paula, Anabela Baptista; Ribeiro, Madalena; Marques, Filipa; Travassos, Raquel; Nunes, Catarina; Pereira, Flávia; Marto, Carlos MiguelThree-dimensional (3D) resin medical-dental devices have been increasingly used in recent years after the emergence of digital technologies. In Orthodontics, therapies with aligners have gained popularity, mainly due to the aggressive promotion policies developed by the industry. However, their systemic effects are largely unknown, with few studies evaluating the systemic toxicity of these materials. The releas...
What Is the Most Effective Technique for Bonding Brackets on Ceramic-A Systemat...
Francisco, Inês; Travassos, Raquel; Nunes, Catarina; Ribeiro, Madalena; Marques, Filipa; Pereira, Flávia; Marto, Carlos Miguel; Carrilho, EuniceBackground: There has been an increase in demand for orthodontic treatment within the adult population, who likely receive restorative treatments using ceramic structures. The current state of the art regarding the most effective method to achieve an appropriate bond strength of brackets on ceramic surfaces isn't consensual. This systematic review aims to compare the available surface treatments to ceramics and...
Effectiveness of photodynamic therapy on treatment response and survival of pat...
Cardoso, Miguel; Marto, Carlos Miguel; Paula, Anabela; Coelho, Ana Sofia; Pinho e Melo, Teresa M. V. D.; Ferreira, Manuel M.; Botelho, Maria FilomenaObjective: This review aims to systematically examine the effectiveness of photodynamic therapy for the treatment of patients with recurrent oral squamous cell carcinoma. Introduction: Oral squamous cell carcinoma is a significant public health problem, and is the seventh most common cancer. Its incidence is mainly due to tobacco use, alcohol consumption, and HPV infection. The survival rates are poor due to di...
Isolation and Identification of Cytotoxic Compounds Present in Biomaterial Life®
Ferreira, Maria Beatriz; Pereira, Nelson A. M.; Marto, Carlos Miguel; Cardoso, Miguel; Amaro, Inês; Coelho, Ana; Saraiva, José; Spagnuolo, GianricoDirect pulp capping consists of a procedure in which a material is directly placed over the exposed pulp to maintain dental vitality. Although still widely used in clinical practice, previous in vitro studies found that the biomaterial Life® presented high cytotoxicity, leading to cell death. This study aimed to identify the Life® constituents responsible for its cytotoxic effects on odontoblast-like cells (MDP...
Mechanical and Tribological Characterization of a Bioactive Composite Resin
Carneiro, Elsa Reis; Coelho, Ana Sofia; Amaro, Inês; Paula, Anabela Baptista; Marto, Carlos Miguel; Saraiva, José; Ferreira, Manuel MarquesDespite developments and advances in dental materials which allow for greater restorative performance, there are still challenges and questions regarding the formulation of new compositions and chemical reactions of materials used in restorative dentistry. The aim of this study was to assess and compare the mechanical and tribological characteristics of a bioactive resin, a composite resin, and a glass ionomer....