9 documents found, page 1 of 1
Surface Roughness Evaluation of Resin Composites after Finishing and Polishing ...
Vinagre, Alexandra; Barros, Catarina; Gonçalves, Joana; Messias, Ana; Oliveira, Filipe; Ramos, JoãoThe purpose of this study was to evaluate the effect of two finishing and polishing methods on the surface roughness of different resin composites. Twenty-two disk-shaped specimens of five resin composites Zirconfill® (ZF), Filtek™ Supreme XTE (FS), Brilliant EverGlow™ (BG), Ceram.X® Duo (CD), and Harmonize™ (HA) were prepared for each one using a silicon mold. Both surfaces of each specimen were first grinded ...
Surface roughness evaluation of resin composites after finishing and polishing ...
Vinagre, Alexandra; Barros, Catarina; Gonçalves, Joana; Messias, Ana; Oliveira, Filipe; Ramos, JoãoThe purpose of this study was to evaluate the effect of two finishing and polishing methods on the surface roughness of different resin composites. Twenty-two disk-shaped specimens of five resin composites Zirconfill® (ZF), Filtek™ Supreme XTE (FS), Brilliant EverGlow™ (BG), Ceram.X® Duo (CD), and Harmonize™ (HA) were prepared for each one using a silicon mold. Both surfaces of each specimen were first grinded ...
Management of Pulp Canal Obliteration-Systematic Review of Case Reports
Vinagre, Alexandra; Castanheira, Catarina; Messias, Ana; Palma, Paulo J.; Ramos, JoãoBackground and Objectives: This systematic review aimed to assess the literature focusing on the clinical management of traumatized teeth with Pulp Canal Obliteration (PCO) and propose an updated clinical decision-making algorithm. The present review follows the PRISMA guidelines and was registered on PROSPERO database (CRD42020200656). Materials and Methods: An electronic search strategy was performed in Pubme...
Six-Month Color Stability Assessment of Two Calcium Silicate-Based Cements Used...
Palma, Paulo J.; Marques, Joana A.; Falacho, Rui I.; Correia, Eder; Vinagre, Alexandra; Santos, João Miguel; Ramos, João C.Aim: The purpose of the present study is to assess the color stability of two calcium silicate-based cements (CSCs) used in regenerative endodontic procedures (REPs). Methods: A total of 40 acrylic single-rooted transparent teeth, with immature apex, were used. Root canals were filled up to 3 mm below the level of the cementoenamel junction, with either saline solution (Mineral Trioxide Aggregate (MTA)/saline a...
Pulp Temperature Rise Induced by Light-Emitting Diode Light-Curing Units Using ...
Vinagre, Alexandra; Ramos, João C.; Rebelo, Clara; Basto, José Francisco; Messias, Ana; Alberto, Nélia; Nogueira, RogérioThe aim of this research was to compare the pulp temperature (PT) rise induced by four light-emitting diode light-curing units (LED LCUs) (Bluephase 20i, Demi Ultra, SPEC 3, and Valo) in different curing modes. Immediately after extraction, the pulp chamber of 11 premolars was accessed from the palatal cervical third of the crown for insertion of fiber Bragg grating (FBG) sensors for temperature measurement and...
Polymerization Shrinkage Evaluation of Restorative Resin-Based Composites Using...
Lins, Rodrigo; Vinagre, Alexandra; Alberto, Nélia; Domingues, Maria F.; Messias, Ana; Martins, Luís R.; Nogueira, Rogério; Ramos, João C.The purpose of this study was to compare the linear polymerization shrinkage of different restorative resin-based composites (RBCs) using fiber Bragg grating (FBG) sensors. Five RBCs were evaluated: Zirconfill® (ZFL); Aura Bulk-Fill (ABF); Tetric® N-Ceram Bulk-Fill (TBF); FiltekTM Bulk-Fill (FBF); and Admira Fusion-Ormocer® (ADF). Ten samples per resin were produced in standardized custom-made half-gutter silic...
Does Delayed Restoration Improve Shear Bond Strength of Different Restorative P...
Palma, Paulo J.; Marques, Joana A.; Falacho, Rui I.; Vinagre, Alexandra; Santos, João Miguel; Ramos, João C.The purpose of the present study was to assess the proper time to perform a restoration (immediately or delayed) after placement of two calcium silicate-based cements (CSCs) and to test the performance of two different restorative protocols regarding shear bond strength (SBS). Seventy-five acrylic blocks were randomly divided into five groups (n = 15). Specimens were filled with either ProRoot MTA (Dentsply Tul...
Does Delayed Restoration Improve Shear Bond Strength of Different Restorative P...
Palma, Paulo J.; Marques, Joana A.; Falacho, Rui I.; Vinagre, Alexandra; Santos, João Miguel; Ramos, João C.The purpose of the present study was to assess the proper time to perform a restoration (immediately or delayed) after placement of two calcium silicate-based cements (CSCs) and to test the performance of two different restorative protocols regarding shear bond strength (SBS). Seventy-five acrylic blocks were randomly divided into five groups (n = 15). Specimens were filled with either ProRoot MTA (Dentsply Tul...
Cuspal Displacement Induced by Bulk Fill Resin Composite Polymerization: Biomec...
Vinagre, Alexandra; Ramos, João; Alves, Sofia; Messias, Ana; Alberto, Nélia; Nogueira, RogérioPolymerization shrinkage is a major concern to the clinical success of direct composite resin restorations. The aim of this study was to compare the effect of polymerization shrinkage strain of two resin composites on cuspal movement based on the use of fiber Bragg grating (FBG) sensors. Twenty standardized Class II cavities prepared in upper third molars were allocated into two groups (n = 10). Restorations in...