Publications by authors named "Pradies G"

Objective: This systematic review aimed to summarize and evaluate the available information regarding the performance of artificial intelligence on dental implant classification and peri-implant pathology identification in 2D radiographs.

Data Sources: Electronic databases (Medline, Embase, and Cochrane) were searched up to September 2024 for relevant observational studies and both randomized and controlled clinical trials. The search was limited to studies published in English from the last 7 years.

View Article and Find Full Text PDF

Objectives: To evaluate the influence of horizontal and vertical dental preparation techniques on tooth-supported fixed restorations, with specific focus on survival and success rates, periodontal-related variables, and patient-reported outcome (PROs) measures.

Methods: A comprehensive literature search of relevant randomized and controlled clinical trials (RCTs/CCTs), prospective/retrospective cohort studies, and case series with a minimum follow-up period of 3 years was performed across electronic databases (Medline, Embase, and Cochrane) up to January 2024. Primary outcomes included success and survival rates, and secondary outcomes included periodontal variables, both mechanical and biological complications, and PROs.

View Article and Find Full Text PDF
Article Synopsis
  • This review compares traditional and digital methods for assessing marginal gaps in fixed dental prostheses, highlighting the advantages and limitations of each technique.
  • Traditional methods like Cross-Sectional Method (CSM) and Silicone Replica Technique (SRT) are established but have drawbacks, while newer digital techniques like Triple-Scan Method (TSM) and Optical Coherence Tomography (OCT) provide more detailed evaluations.
  • The study indicates a knowledge gap in the literature, emphasizing the need for further exploration of digital methods for clinical applications in dental assessments.*
View Article and Find Full Text PDF
Article Synopsis
  • Digital technology in dentistry, particularly the use of intraoral scanners (IOSs), has improved the process of acquiring occlusal records, highlighting the importance of static virtual articulation in this digital workflow.
  • A literature review of 30 relevant studies revealed three primary evaluation methods for accuracy: distance measurement, occlusal contact analysis, and deviation analysis; however, direct comparisons across studies are complicated due to differing methodologies.
  • Factors impacting the accuracy of virtual interocclusal records, such as scan range and positioning of records, remain uncertain and vary based on specific conditions, suggesting that using multiple evaluation methods could lead to a more comprehensive understanding of accuracy.
View Article and Find Full Text PDF
Article Synopsis
  • A systematic review was conducted to explore factors affecting the accuracy of additively manufactured (AM) interim dental prostheses, as there was previously no comprehensive analysis available.
  • The review followed established guidelines, was registered in a reputable database, and involved thorough electronic searches resulting in 31 relevant studies categorized by various influencing factors.
  • Key findings indicate that AM material, prosthetic factors, AM system, AM parameters, postprocessing techniques, and aging all significantly impact the accuracy of these dental prostheses.
View Article and Find Full Text PDF

Objectives: This study aimed to assess the fit of interim crowns produced using DLP-based 3D printing with different manufacturing workflows-open and proprietary-versus milling technology.

Methods: A total of 120 crowns were evaluated using the replica technique. The control group (Mill, n = 30) was manufactured via subtractive technology.

View Article and Find Full Text PDF

Objectives: The aim of this study was to assess the accuracy of surgical guides manufactured with four different 3D printers..

Methods: Forty-eight surgical guides (BlueSky Plan, BlueSky Bio) were produced using four different 3D printers, with strict adherence to each manufacturer's instructions.

View Article and Find Full Text PDF

Objective: To compare the implant-abutment connection microgap between computer-aided design and computer-aided manufacturing (CAD/CAM) milled or laser-sintered cobalt-chrome custom abutments with or without ceramic veneering and titanium stock abutments with or without crown cementation.

Material And Methods: Six groups of six abutments each were prepared: (1) CAD/CAM cobalt-chrome custom abutments: milled, milled with ceramic veneering, laser-sintered, and laser-sintered with ceramic veneering (four groups: MIL, MIL-C, SIN, and SIN-C, respectively) and (2) titanium stock abutments with or without zirconia crown cementation (two groups: STK and STK-Z, respectively). Abutments were screwed to the implants by applying 30 Ncm torque.

View Article and Find Full Text PDF

Objectives: To evaluate the diagnostic performance of three versions of a deep-learning convolutional neural network in terms of object detection and segmentation using a multiclass panoramic radiograph dataset.

Methods: A total of 600 orthopantomographies were randomly selected for this study and manually annotated by a single operator using an image annotation tool (COCO Annotator v.11.

View Article and Find Full Text PDF

Objectives: This scoping review aimed to identify the available evidence in the use of 3D printing technology in dental implantology. Due to the broad scope of the subject and its application in implantology, three main areas of focus were identified: (1) customized dental implants, (2) manufacturing workflow for surgical implant guides, and (3) related implant-supported prostheses factors, which include the metallic primary frameworks, secondary ceramic or polymer superstructures, and 3D implant analog models.

Materials And Methods: Online databases (Medline, Cochrane, Embase, and CINAHL) were used to identify the studies published up to February 2023 in English.

View Article and Find Full Text PDF

Purpose: To evaluate the effect of operator age on the scan accuracy (trueness and precision) of inexperienced operators when compared with experienced operators, and how training, intraoral scanner (IOS), and software version affect scan accuracy.

Material And Methods: Thirty-four operators were sorted into groups: G1 (operators <25 years old, no experience), G2 (operators >40 years old, no experience), and G3 (experienced IOS operators). They conducted partial-arch scans before and after a 4-session training with two IOSs (Trios 3 and True Definition) and two software versions.

View Article and Find Full Text PDF

Introduction: The aim of this systematic review was to assess the literature reporting on the failure rates, survival rates and complication rates and patient reported outcome measures (PROMs) of anterior full (FC) or partial (PC) coverage single tooth restorations after a mean observation period of at least 3 years.

Methods: Systematic search was conducted using the electronic databases: MEDLINE, EMBASE and Cochrane library. Data regarding survival (restoration failure) and complication rates and PROMs were extracted and presented descriptively.

View Article and Find Full Text PDF

Aims: To determine whether the use of single or combined mechanical and virtual articulators, as well as facebows, jaw motion trackers, face scanners, and related devices, actually improve the efficacy of the prosthesis obtained in terms of lifespan and patient-related outcomes. To coin the terms Analogic and Digital Virtual Patients (AVP and DVP) as an attempt to analyze, clarify and synthesize terminology and workflows related to previously so-called devices.

Materials And Methods: A scoping review was accomplished involving different databases.

View Article and Find Full Text PDF

Purpose: The aim of this randomized controlled clinical trial was to evaluate peri-implant marginal bone levels (MBLs) and soft tissue dimension changes 1 year after loading. Patients in the control group received bone-level implants, whereas in the test group, tissue-level implants with a convergent transmucosal neck were used.

Material And Methods: MBLs were calculated by measuring the distance from the implant shoulder to the first visible bone-to-implant contact using standardized periapical digital radiographs.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to evaluate the accuracy of printed dental models from five different 3D printers, focusing on trueness and precision.
  • A total of 225 models were printed from full-arch scans of 15 patients and analyzed using Control X software for comparison with a reference model.
  • Results showed that industrial printers yielded better accuracy than dental desktop printers, indicating the importance of printer choice in achieving high-quality prosthetic restorations.
View Article and Find Full Text PDF

The aim of this study was to evaluate the diagnostic reliability of a web-based artificial intelligence program for the detection of interproximal caries in bitewing radiographs. Three hundred bitewing radiographs of patients were subjected to the evaluation of a convolutional neural network. First, the images were visually evaluated by a previously trained and calibrated operator with radiodiagnosis experience.

View Article and Find Full Text PDF

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 evidence on this subject is limited.

Purpose: The purpose of this systematic review was to analyze whether using the biologically oriented preparation technique leads to improved clinical outcomes in terms of probing depth, gingival inflammation index, gingival marginal stability, and fewer mechanical and biological complications.

View Article and Find Full Text PDF

Purpose: This in vitro study analyzed the accuracy of a computer-assisted design (CAD)/computer-assisted manufacturing (CAM) guided implant surgery system by comparing linear, angular, and coronal deviations between the planned and final implant placement.

Methods: By using a fully guided surgery workflow, 32 dental implants were placed in 16 partially edentulous models. After virtual design of the restorations, radiological and CAD files were matched and implant positions were planned by using dedicated implant planning software (Galileo Implant version 1.

View Article and Find Full Text PDF

Objectives: To evaluate the effectiveness of intraoral scanning with identical multiple implant scan bodies (ISB) using customized over scan body rings (COR) as an auxiliary system.

Methods: Six printed rings with different diameters and shapes were attached at different levels to each identical ISB of an edentulous mandibular master model. The master model was scanned using an intraoral scanner (Primescan CEREC) until valid digital models for the COR group (n=10) and for the unmodified ISB (UN) group (n=10) were obtained.

View Article and Find Full Text PDF

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 preparation and temporary restorations in the clinic correlating with a well-founded and protocolized execution of the laboratory steps. In turn, prosthetic work returned to the clinic must show perfect integration between the prosthesis, the preparation, and the periodontal tissue, with a balance between pink and white esthetics.

View Article and Find Full Text PDF

Purpose: To assess the internal accuracy and mechanical behaviour under cyclic loading after artificial aging of implant-supported crowns restored with original stock abutments and two compatible non-original stock abutments.

Methods: Forty-eight original internal hexagon connection implants were connected to different stock abutments. The samples were divided into three groups depending on the manufacturer of the abutment components (one original, two non-originals).

View Article and Find Full Text PDF

Aim: The aim was to evaluate the efficacy and effectiveness of tooth-supported fixed prostheses in partially edentulous patients with stage IV periodontitis.

Material And Methods: Randomized and controlled clinical trials (RCTs and CCTs) and prospective/retrospective cohort studies or case series were searched in three databases. Survival rate of abutment teeth was considered the primary outcome.

View Article and Find Full Text PDF

Objectives: To evaluate the effect of age and intra-oral scanner (IOS) on the learning curve of inexperienced operators.

Methods: Thirty-four operators pertaining to 1 of 3 groups: (G1) students ≤ 25 years (y), (G2) dentists ≥ 40y, and (G3) a control group of experienced IOS operators (no age limitation), were included. All participants performed baseline and final quadrant scans on a volunteer subject, before and after a training program of 3 sessions, with two different IOS: TRIOS 3 (S1) and True Definition (S2).

View Article and Find Full Text PDF

Objective: The aim of the present cross-sectional study was to compare the interocclusal contact records obtained by three different digital methods (intra- and extraoral digital scanners and T-Scan III system) with the conventional method (articulating paper).

Materials And Methods: Twenty-five healthy volunteers were selected. As a control group, maximum intercuspation occlusal contacts were registered and photographed from the patients with an 8 µm articulating paper.

View Article and Find Full Text PDF