Cristian Abad Coronel

University of Cuenca | UC · Facultad de Odontología

Debido a la actual situación provocada por la Pandemia, información desde fuentes oficiales organizada, se hace necesaria para los profesionales odontólogos.

New technologies are changing the therapeutical options to do indirect restorations and new adhesive systems are continuously introduced to be used by clinicians. Different interactions between restorations, adhesive systems components, enamel and dentin require having criteria based on the selection of the adhesive system, ensuring the longevity o...

Objectives . To evaluate microleakage and absolute marginal discrepancy (AMD) and to assess correlation between AMD and microleakage with four resin luting cements. Material and Methods . 20 extracted human third molars were prepared for full-coverage crowns. 20 zirconia copings were made (LAVA, 3M ESPE) and cemented. Specimens were randomly alloca...

Several techniques have been reported on in the literature related to the treatment of anterior partial edentulism and its effects on aesthetics and function.1 Patients with single-tooth loss can be treated with osseointegrated implants, fixed prosthodontics, removable partial dentures, and fiber-reinforced polymer bridges (FRPBs). Actually includi...

Dental implant placement is crucial in oral rehabilitation, requiring precision for successful outcomes. Digital technologies, including surgical guides, enhance predictability and efficiency in implant procedures. However, their impact on implant positioning accuracy is still under investigation. This systematic review aimed to evaluate the litera...

Aim: The influence of different heat treatments on the mechanical properties of CAD/CAM ceramics was assessed. Methodology: A systematic search in five databases and gray literature was performed. In vitro studies providing data about the influence of various thermal treatments on the mechanical properties of CAD/CAM ceramics were included. Results...

Dental implants are commonly used to replace missing teeth, however concerns associated with implant and prosthetic components are well-established. Fractures of the screws supporting the implant abutment can generate complicated clinical situations. The aim of this article is to present an accessible and minimally invasive protocol to recover frac...

«La rehabilitación oral basada en herramientas digitales debe estar siempre encaminada a la eficiencia y centrada en el beneficio del paciente en tiempo, presupuesto, preservación del remanente biológico y longevidad de las restauraciones realizadas»

The aim of this study was to compare the influence of heat treatment on fracture resistance (FR) of different ceramic materials used for CAD/CAM systems. Methods: Eighty monolithic restorations were designed using the same parameters and milled with a CAD/CAM system (CEREC SW 5.0, PrimeMill, Dentsply-Sirona™, Bensheim, Germany), forming five study...

The aim of this study was to determine the mechanical implications of four-unit fixed dental prostheses (FDPs) made of (1) monolithic zirconium dioxide (ZR O2), (2) polymethylmethacrylate (PMMA), (3) metal ceramic (PFM) and (4) impression resin (3DPP). Methods: Four groups were studied with eight samples for each material (n: 32). Each structure wa...

The aim of this study was to evaluate and compare the fracture resistance of a temporary three-unit fixed dental prosthesis (FDP) made of a new polymeric material obtained by an additive technique (3DPP) using a computer-aided design and manufacturing (CAD/CAM) system, comparing the prosthesis to the respective outcomes of temporary polymethylmetha...

Background: Digital approaches in dentistry promote efficiency, predictability and less invasiveness. From planning to prosthetically guided implant placement the digital workflow has several benefits: more accurate routing, faster and safer surgery; and a reduction in prosthetic complications. This workflow has gained interest because using digita...

The development of digital technologies has allowed for the fabrication of new materials; however, it makes it difficult to choose the best methods to obtain occlusal splints with optimal properties, so it is essential to evaluate the effectiveness of these materials. The aim of the study is to compare the fracture resistance of occlusal splints ma...

The aim of this study was to evaluate and compare the fracture resistance of a single-unit fixed prosthesis, using a CAD/CAM PMMA material and two printed materials (3DPPa and 3DPPb). A typodont with a specific preparation for a full crown was used; a digital impression was made with a state-of-the-art scanner (PrimeScan TM , Dentsply-Sirona TM , N...

With the great demand in the market for new dental software, the need has been seen to carry out a precision study for applications in digital dentistry, for which there is no comparative study, and there is a general ignorance regarding their applications. The purpose of this study was to investigate the accuracy differences between digital impres...

The aim of this study was to evaluate and compare the fracture resistance of definitive zirconia dioxide restorations obtained using a computer-aided design and manufacturing (CAD/CAM) system. Methods: Two groups of ten samples were analyzed for each material (n: 20); the first group was Zolid Gen X Amann Girrbach (ZGX) and the second group was Cer...

The aim of this study was to evaluate and compare the fracture resistance of definitive zirconia dioxide restorations obtained using a computer-aided design and manufacturing (CAD/CAM) system. Methods: Two groups of ten samples were analyzed for each material (n: 20), the first group was Zolid Gen X Amann Girrbach (ZGX) and the second group was Cer...

The aim of this study was to evaluate and compare the fracture resistance of temporary restorations made of polymethylmethacrylate (PMMA), graphene-modified PMMA (GRA), acetal resin (AR) and polysulfone (PS) obtained by a subtractive technique (milling) using a computer-aided design and manufacturing (CAD/CAM) system of a three-unit fixed dental pr...

Objective: The objective of this in vitro study was to evaluate the volumetric wear of three CAD/CAM (computer-aided design/computer-aided manufacturing) ceramic materials. Materials and Methods: The materials evaluated were CEREC Blocs (Dentsply Sirona), Initial LRF (GC) and Amber Mill (HASS Corp). All the samples (n=30) were subjected to simulate...

Statement of problem The biologically oriented preparation technique is a concept with a vertical tooth preparation, gingitage, an immediate interim restoration preserving the clot, and a specific laboratory technique aiming to adapt the marginal periodontal tissue to a remodeled emergence profile of the crown. However, the published scientific evi...

The objective of the study was to evaluate the volumetric wear of four composite materials for CAD/CAM (computer-aided design/computer-aided manufacturing) systems. The materials evaluated were: Cerasmart (CER), Shofu Block HC (SBH), Tetric CAD (TEC) and Brava (BRA). All the samples (n = 40) were subjected to simulated brushing (100,000 cycles). We...

The purpose of this study was to compare the fracture strength of monolithic zirconium dioxide subjected to a sintering process in two different furnaces: InFire HTC Speed and CEREC SpeedFire. Methods: Forty restorations were designed and machined using a computer aided design / computer aidded machine (CAD/CAM) system. The restorations were rand...

Objectives: This study aimed to provide information on the accuracy of exported digital files with the different resolutions available in the CEREC 4.6.2 software obtained by means of an intraoral scanner (IOS), in addition to establishing differences between materialized models with different exported resolutions, and how these different exported...

The biologically oriented preparation technique (BOPT) has revolutionized the execution of fixed prosthetic treatments, ensuring tissue stability and the integration of the gingival tissue with the prosthetic restorations. BOPT follows both a clinical and laboratory sequence; the two must be perfectly integrated and synchronized, with the phase of...

El concepto BOPT como filosofía de trabajo orientada a la integración de las preparaciones, la prótesis y el tejido periodontal, ha ido marcando una tendencia irreversible como método alternativo de tratamiento en prótesis fija. Esta nueva visión se contrapone a tratamientos restauradores convencionales que basan sus principios en líneas de termina...

The aim of this study was to evaluate and compare the resistance to fracture of interim restorations obtained through additive techniques (3D impressions) and subtractive techniques (milling) using a computer-aided design and manufacture (CAD/CAM) system of a three-unit fixed dental prosthesis (FDP) to ascertain its clinical importance. (1) Materia...

The aim of this study was to determine the resistance to fracture of feldspathic restorations with lithium disilicate and crystallized with different ovens and programs. Methods: Sixty monolithic restorations (LD) (EMAX CAD™ LT, Ivoclar-Vivadent™) were designed with the same parameters and milled with a CAD/CAM system (CEREC SW 5.1, CEREC MCXL, D...

This study aims to evaluate the microstructural and mechanical properties of three commercial resin-based materials available for computer-aid design and manufacturing (CAD/CAM)-processed indirect dental restoration: LavaTM Ultimate Restorative (LU), 3M ESPE; Brilliant Crios (BC), COLTENE and CerasmartTM (CS), GC Dental Product. The three types of...

Introducción La digitalización en Odontología plantea el uso de equipamiento y técnicas que han revo-lucionado el flujo de trabajo en rehabilitación oral. La utilización de escáneres intraorales de alta precisión y exactitud, y su correspon-diente beneficio, así como los sistemas CAD/ CAM (diseño y fabricación asistidos por orde-nador), han encontr...

Tras de la exploración, diagnóstico y planificación de un tratamiento para prótesis parcial fija, su ejecución requiere que los dientes pilares sean preparados para recibir las restauraciones. Las preparaciones deben realizarse siguiendo ciertos principios mecánicos, es-téticos y biológicos que aseguren el éxito a largo plazo de la prótesis, sin af...

Background: The vertical dimension of occlusion (VDO) is one of the most important parameters to consider for diagnosis and treatment planning.

La Pandemia ha afectado a la odontología de manera muy severa.LA información cambia y se actualiza constantemente. Por ello hemos actualizado el recopilatorio de información organizado sobre SARS-COV 2 y COVID-19 relacionado con la práctica de Odontología Restauradora con fuentes oficiales, guías con soporte científico y literatura actual sobre el...

Workflow in fixed prosthesis requires a strict compliance of the exploration, diagnosis and treatment plan processes. Execution of this plan begins with the dental preparations and the impressions to obtain the working models. New technologies to design and machine fixed prosthesis are giving way to a higher frequency of digital impressions through...

As 3D printing, computer-aided machining, and optical scanners keep improving and are becoming more accessible, design software is rapidly becoming the next frontier in digital dentistry. Rapid prototyping technologies in dentistry were initially operated with generic software that was not specifically designed for dental applications. This was ver...

Digitalization is the first step involving a digital restorative dentistry workflow. Although the digitalization process was initially confined to CAD/CAM (computer-aided design/computer-aided manufacturing) dental procedures, nowadays a much wider range of dental procedures have been revolutionized by their ongoing digitalization. Digitalization c...

In the production of dental restorations, there are, currently, two main types of materials: ceramics and resin composites. These latter kinds are typically suggested because of their quick fabrication, easy reparation and increased crossed link density compared with conventional light-cured materials. However, it is not clear for the specialist wh...

CLINICAL INNOVATIONS in DENTISTRY

En la actual vida cotidiana, la tecnología digital cada vez toma mayor importancia como una válida herramienta de ayuda en nuestras actividades sin ser ajena a su aplicación en nuestra profesión.

El flujo digital en odontología: de lo virtual a lo tangible Abad-Coronel C; Encalada C; Pradíes G. La digitalización de la odontología es ya una realidad, la tecnología chairside CEREC es utilizada por cerca de 38.000 dentistas en el mundo. Su globalización va desplazando las impresiones convencionales y su fiabilidad respecto a reproducción de lo...

Background: Surface cleaning by argon plasma is widely used as the last step of the manufacturing process of titanium implants before their sterilization by c rays. This technology works through the activation of the electronic mantle of materials by a spray of argon under pressure at room temperature. Microscopic effects of such activation is the...