Interdisciplinary, Computer-Guided Periodontal and Dental Management of a Novel Hypo- and Microdontia Case Restored With Ultrathin Veneers Fabricated via INKGLUE Technique.

Objectives: This report illustrates the digital interdisciplinary management of a case presenting with diastemata, a retained primary tooth, microdontia, and hypodontia. Esthetic crown lengthening and ultrathin veneers optimized the natural dentition and achieved a stable, minimally-invasive, and esthetically-pleasing outcome.

Clinical Considerations: Reduction guides were digitally-designed and 3D-printed for guided crown lengthening and dental veneer preparation.

Influence of Opacifiers and Different Dentin Thicknesses on the Optical Properties of a Darkened Teeth with Limited Sound Tissue Reduction.

Objective: To evaluate color masking and relative translucency parameter (RTP) of increasing dentin thicknesses from different resin composites, with or without opacifiers, on a veneer dental preparation and resin disks.

Material And Methods: Artificial darkened lateral incisors with 1mm-thick veneers preparations were used to evaluate color masking of different resinous materials, with or without opacifiers: IPS Empress Direct (ED) with or without ED Opaque; and Essentia (ES) with or without ES Masking Liner. For the RTP test; disc-shaped specimens were performed and evaluated with a spectrophotometer (VITA Easyshade) against black and C4 backgrounds.

Fully digital workflow involving 3D printed gingivectomy guide and 3D printed waxup to restore and reshape a congenitally missing central incisor after orthodontic treatment.

Objective: This case report describes a multidisciplinary approach using a digital wax-up to fabricate a gingivectomy and crown lengthening guides, to reshape a lateral incisor into a central incisor and improve overall esthetics.

Clinical Considerations: Comprehensive treatment planning is crucial when executing a multidisciplinary workflow, with digital tools proving to be invaluable aids. In the present case, a digitally designed wax-up was employed to generate a digital surgical guide for reshaping the gingival architecture of a lateral incisor into that of a central incisor, followed by composite restorations.

A fully digital workflow involving 3D printed tooth reduction guides and injection resin-indexes to restore an impacted canine.

Objective: The present clinical report describes a long-term temporary restorative approach using injectable composite to reshape a canine into a central incisor, within the context of an ongoing orthodontic treatment. This treatment protocol describes a fully-digital workflow, incorporating digital designed and 3D printed diagnostic wax up, reduction guides and resin-injection index.

Clinical Considerations: Effective planning is important when aiming to deliver a comprehensive and multidisciplinary workflow, and digital tools serve as invaluable aids.

A fully digital low-cost workflow of a multidisciplinary minimally invasive treatment: step-by-step from function to esthetics.

This clinical case outlines a comprehensive digital workflow for a minimally invasive multidisciplinary treatment. The process utilizes one open-source software for digital wax-up and one low-cost software to address esthetic concerns related to teeth misalignment. The patient's function was stabilized with a digitally made occlusal splint.

Analysis of translucency parameter and fluorescence intensity of 5 resin composite systems.

The natural outcome of dental composite restorations highly depends on the translucency of the enamel layer and fluorescence. This study aimed to evaluate the Translucency Parameter (TP) and Fluorescence Intensity (FI) of five different resin composite systems. Seven discs of each composite brand were prepared in a circular increasing thickness.

Skeletal adaptation to mechanical cues during homeostasis and repair: the niche, cells, and molecular signaling.

Bones constantly change and adapt to physical stress throughout a person's life. Mechanical signals are important regulators of bone remodeling and repair by activating skeletal stem and progenitor cells (SSPCs) to proliferate and differentiate into bone-forming osteoblasts using molecular signaling mechanisms not yet fully understood. SSPCs reside in a dynamic specialized microenvironment called the , where external signals integrate to influence cell maintenance, behavior and fate determination.

Loss of Notch signaling in skeletal stem cells enhances bone formation with aging.

Skeletal stem and progenitor cells (SSPCs) perform bone maintenance and repair. With age, they produce fewer osteoblasts and more adipocytes leading to a loss of skeletal integrity. The molecular mechanisms that underlie this detrimental transformation are largely unknown.

In vitro analysis of durability of S-PRG filler-containing composite crowns for primary molar restoration.

Objective: To evaluate the reliability, maximum principal stress, shear stress, and crack initiation of a computer-aided design/computer-aided manufacturing (CAD/CAM) resin composite (RC) incorporating surface pre-reacted glass (S-PRG) filler for primary molar teeth.

Methods: Mandibular primary molar crowns fabricated by experimental (EB) or commercially available CAD/CAM RCs (HC) were prepared and cemented to a resinous abutment tooth using an adhesive resin cement (Cem) or a conventional glass-ionomer cement (CX). These specimens were subjected to a single compressive test (n = 5/each) and the step-stress accelerated life testing (SSALT) (n = 12/each).

Implant position and guided placement for in-house-produced CAD/CAM restorations with titanium (Ti)-bases.

Digital dentistry has contributed to the evolution and simplification of dental implantology over the last decade. The incorporation of intraoral scanners, CBCT, 3D implant-planning software, and CAD/CAM systems makes prosthetically driven implantology a straightforward process. Such digital resources for treatment planning and execution, following evidence-based concepts, have the ability to improve the long-term esthetics and function of implant-supported restorations as well the long-term survival of dental implants.

Repair Bond Strength of Aged Composite Resins Using Different Surface Treatment Protocols.

This study evaluated shear bond strength (SBS) of thermally aged composite resins repaired using different surface protocols. Four-hundred composite resin samples were made using the following materials (100 samples per material): Filtek Z350XT (FXT); Spectra Smart (SSM); IPS Empress Direct (EDI); and Forma (FOR). Each group's samples were then divided into 10 groups (n = 10 samples per group): G1: no surface treatment; G2: phosphoric acid-etching + universal-adhesive (PU); G3: surface roughening + PU (RPU); G4: RPU + silane (RPSU); G5: surface roughening + hydrofluoric acid-etching + universal adhesive (RHU); G6: RHU + silane (RHSU); G7: dry sandblast + PU (DsPU); G8: DsPU + silane (DsPSU); G9: wet sandblast + PU (WsPU); and G10: WsPU + silane (WsPSU).

Effect of High-radiant Emittance and Short Curing Time on Polymerization Shrinkage Vectors of Bulk Fill Composites.

Purpose: To evaluate the effect of short curing time using a high-radiant emittance light on polymerization shrinkage vectors in different consistency bulk-fill composites (BFRCs) using micro-computed tomography.

Methods And Materials: Radiopaque zirconia fillers were homogeneously incorporated and functioned as radiopaque tracers into two regular-paste: TBFill (Tetric EvoCeram Bulk Fill) and TPFill (Tetric PowerFill), and two flowable (n=6): TBFlow (Tetric EvoFlow Bulk Fill) and TPFlow (Tetric PowerFlow) resin composites. Class I cavities (4 mm depth × 4 mm length × 4 mm width) were 3D-printed and filled in a single increment: TBFill and TBFlow were light-activated using a Bluephase Style 20i (10 seconds in high-mode); TPFill and TPFlow were light-activated using a Bluephase PowerCure (three seconds).

Full digital workflow to resolve angled adjacent dental implants: A dental technique.

The digital acquisition, fabrication process, and delivery of computer-aided design and computer-aided manufacture (CAD-CAM) implant-supported restorations on angled adjacent implants are described. The proximal surface of a scan post was modified for correct adaptation, permitting an accurate digital scan of adjacent implants in 1 step. Definitive screw-retained splinted implant-supported restorations were designed and milled in a zirconia material and delivered with a combined extraoral and intraoral cementation protocol.

3D-printed resins for provisional dental restorations: Comparison of mechanical and biological properties.

Objectives: To characterize the mechanical and biological properties of three commercially available resins, which are currently used for provisional restorations and to compare them to an experimental resin intended for definitive fixed dental prostheses.

Materials And Methods: Three commercially available resins: Crowntec (CT, Saremco), Temporary C&B (FL, Formlabs), C&B MFH (ND, Nextdent), and the experimental resin: Permanent Bridge (PB, Saremco) were printed and subjected to biaxial flexural strength test, finite element analysis, Weibull analysis, scanning electron microscopy, cell proliferation, immunohistochemistry and cytotoxicity assays. Samples from CT, PB, and ND were provided directly from the manufacturers ensuring ideal workflow.

The Computer Aided Design/press technique: Fabrication of zirconia-reinforced lithium disilicate restorations for treatment of extensive noncarious cervical lesions.

Objective: The aim of this case report is to present the CAD/Press technique; a workflow that combines digital design, milled, or 3D printed burnout molds, and a new pressable ceramic material for the treatment of extensive noncarious lesions with minimal invasive indirect ceramic restorations.

Clinical Considerations: Clinical decisions from material selection, preparation design, manufacturing techniques to adhesive protocols will be discussed, as they are important factors for achieving long-term clinical success while preserving healthy tooth structure.

Clinical Significance: The presented workflow aims to ease clinical decisions when restoring extensive cases with indirect restorations and show clinicians a workflow combining several techniques.

Digital Implant Planning and Surgical Guides: Tools for Clinical Success.

Digital technologies have fundamentally changed treatment planning, surgical placement, and restoration of dental implants, improving clinical success while saving valuable chairtime. Intraoral scanners (IOS), cone-beam computed tomography (CBCT), 3D implant planning software, and CAD/CAM systems that fabricate surgical guides and provisional and definitive restorations have become standard tools for precise implant placement and ideal restoration design, which are essential for optimal and long-term esthetic and functional success. This article summarizes clinical guidelines for integration of digital technologies in implant dentistry.

Physiochemical and bactericidal activity evaluation: Silver-augmented 3D-printed scaffolds-An in vitro study.

Hypothesis: Injuries requiring resection of tissue followed by autogenous bone transfer may be prone to infection by Staphylococcus aureus, impeding recovery and increasing medical costs. For critical sized defects, the common approach to reconstruction is a tissue transfer procedure but is subject to limitations (e.g.

Multidisciplinary clinical approach of an orthodontic treatment and complete digital rehabilitation of laminate veneers for esthetically compromised worn teeth.

Aim: The present clinical case reports on the workflow of a multidisciplinary treatment including both orthodontic and esthetic procedures for the rehabilitation of a young patient with severe wear in the anterior area of both the maxillary and mandibular arches due to malocclusion. The described workflow comprises a digital step-by-step process that involves 3D printing, intraoral scanners, and CAD/CAM milling systems.

Results: Accurate diagnostic and treatment planning were paramount when different specialties needed to combine and work together.

Effect of different fabrication steps on color and translucency of a CAD-CAM feldspathic ceramic.

Objective: To evaluate color differences (ΔE) of different fabrication steps performed on a feldspathic ceramic and relative translucency parameter (RTP) after glazing; and to evaluate their effects on the color parameters: L*, a* and b*.

Material And Methods: Computer-aided design/computer-aided manufacturing (CAD-CAM) feldspathic maxillary right central incisor ceramic crowns (Cerec Blocs; 1.4 mm thickness) were fabricated through scanning a model preparation and milling.

Esthetic Restoration of Severely Discolored and Periodontically Compromised Teeth With Novel Digital Workflow.

The objective of this article is to describe to clinicians and dental technicians a novel approach regarding a digital workflow that combines the use of different CAD/CAM software programs to successfully address the challenge of achieving esthetic success in difficult cases. The "ReShape" concept for morphological and esthetic enhancement of monolithic ceramic restorations presents a unique digital workflow that facilitates production of restorations with natural morphology and surface texture, less need for post-milling characterizations, and excellent esthetic results. This approach is aimed at improving the quality of monolithic ceramic restorations fabricated via CAD/CAM technology by combining the acquisition software of an intraoral scanner with a design software.

Esthetic Restoration of Severely Discolored and Periodontically Compromised Teeth With Novel Digital Workflow.

The implementation of digital technologies for interdisciplinary treatment planning and fabrication of monolithic ceramic restorations is a standard protocol in modern dentistry. Teeth with severe discoloration, soft-tissue defects, and multiple diastemas are common challenges clinicians face when performing restorative dentistry. The objective of this article is to describe to clinicians and dental technicians a novel approach regarding a digital workflow that combines the use of different CAD/CAM software programs to successfully address the challenge of achieving esthetic success in difficult cases.

A comparison of ceramic crown color difference between different shade selection methods: Visual, digital camera, and smartphone.

Statement Of Problem: The light source stability of digital cameras and smartphones is important in shade matching in restorative and prosthetic dentistry to communicate objectively with the dental laboratory. Techniques that standardize the light source of such devices are lacking, and this limitation can lead to color mismatches, difficulties in color communication, and treatment documentation.

Purpose: The purpose of this clinical study was to compare the magnitude of color difference (ΔE) among 3 shade selection methods during the fabrication of ceramic crowns: visual shade selection with a shade guide, digital shade selection with a digital camera and cross-polarizing filter, and digital shade selection with a smartphone and a light-correcting device.

In vitro evaluation of surface roughness, color stability, and color masking of provisional restoration materials for veneers and crowns.

Aim: To evaluate surface roughness (SR), color stability (CS), and color masking as assessed through the relative translucency parameter (RTP) of different provisional restoration materials before and after water thermocycling (TC).

Materials And Methods: Four different provisional materialas were selected: acrylic resin, bis-acryl resin, polymethyl methacrylate (PMMA) CAD/CAM blocks, and 3D-printed provisional resin. Samples of 0.