Effect of coffee staining and simulated oral hygiene methods on the color and translucency of a nanoceramic resin.

Objective: Evaluate the color and translucency of a nanoceramic resin subjected to hygiene practices and immersion in coffee over time.

Materials And Methods: Specimens (n = 80, HT and LT, 0.5-mm thick) of a nanoceramic resin were obtained and were divided in groups according to the simulated oral hygiene: no intervention (NT), brushing with an electric brush and water (BN), brushing with an electric brush and toothpaste for 10 s (BT), and immersion in mouthwash for 30 s (MW).

Harmonizing color measurements in dentistry using translucent tooth-colored materials.

Background: Since color measurements are relative, the discrepancy among different instruments is alarmingly high. This multicenter study evaluated the effectiveness of instrument calibration and inter-instrument harmonization of different spectrophotometers with the same optical geometry using tooth-colored, translucent dental materials.

Methods: The coordinating center (CC) spectrophotometer was calibrated using the NPL Ceram Series II set.

Dental and composite resin discoloration induced by different hydraulic calcium silicate-based cements: two-year in vitro assessment.

Few long-term studies assess the discoloration induced by hydraulic calcium silicate-based cement on dental structures. In addition, as far as we know, no long-term study has assessed the discoloration induced by these cement on composite resin. This in vitro study aimed to assess, during a period of two years, the discoloration potential of different hydraulic calcium silicate-based cements (hCSCs) on the enamel/dentin structure and composite resin restoration.

Additive Manufacturing Technologies for Fabrication of Biomaterials for Surgical Procedures in Dentistry: A Narrative Review.

Purpose: To screen and critically appraise available literature regarding additive manufacturing technologies for bone graft material fabrication in dentistry.

Material And Methods: PubMed and Scopus were searched up to May 2021. Studies reporting the additive manufacturing techniques to manufacture scaffolds for intraoral bone defect reconstruction were considered eligible.

Early Biofilm Formation on Rough and Smooth Titanium Specimens: a Systematic Review of Clinical Studies.

Objectives: There is a concern whether the enhancement on implant surface roughness is responsible for higher biofilm formation, which acts as an aetiological factor for peri-implant diseases. The aim of the present systematic review was to answer the following question: "Are rough surfaces more susceptible to early biofilm formation when compared to smoother surfaces on titanium specimens?".

Material And Methods: The research was performed on PubMed, Web of Science and Scopus, up to August 2021.

Color stability of a resin nanoceramic after surface treatments, adhesive cementation, and thermal aging.

Statement Of Problem: Whether color changes in resin nanoceramic (RNC) restorations can occur because of material and adhesive interface degradation is unclear.

Purpose: The purpose of this in vitro study was to evaluate the color of RNCs submitted to surface treatments, cementation, and aging.

Material And Methods: RNC specimens (N=120) were produced with a thickness of 0.

Current perspectives on dental adhesion: (3) Adhesion to intraradicular dentin: Concepts and applications.

Adhesion science is one of the greatest contributions to restorative dentistry. Adhesion not only established the current principles of tissue preservation, but also allowed for the production of more hermetic and long-lasting restorations. Although adhesive strategies are routinely used in most clinical situations, adhesion to root dentin is still a major challenge.

Tooth discoloration induced by the different phases of a calcium aluminate cement: One-year assessment.

Objectives: To assess the discoloration of teeth treated with the different phases of calcium aluminate cement (CAC), in comparison with the conventional CAC and mineral trioxide aggregate (MTA).

Materials And Methods: Fifty bovine incisors were prepared and filled. Two millimeters of the filling was removed to fabricate a cervical plug with the following cements (n=10): CA(CaO.

Challenging replacement of a maxillary canine with an implant-supported restoration: A surgical and prosthetic approach.

This clinical report describes the replacement of a traumatized maxillary canine that was extracted after unsuccessful orthodontic extrusion with an implant-supported restoration. Guided bone regeneration surgery was performed, followed by a second surgery with implant placement plus simultaneous bone and tissue regeneration. Esthetics and function were achieved with the placement of a veneered zirconia implant-supported restoration.

Strategies to Reduce Biofilm Formation in PEEK Materials Applied to Implant Dentistry-A Comprehensive Review.

Polyether-ether-ketone (PEEK) has emerged in Implant Dentistry with a series of short-time applications and as a promising material to substitute definitive dental implants. Several strategies have been investigated to diminish biofilm formation on the PEEK surface aiming to decrease the possibility of related infections. Therefore, a comprehensive review was carried out in order to compare PEEK with materials widely used nowadays in Implant Dentistry, such as titanium and zirconia, placing emphasis on studies investigating its ability to grant or prevent biofilm formation.

Evaluation of the color and translucency of glass-infiltrated zirconia based on the concept of functionally graded materials.

Statement Of Problem: Infiltrated zirconia has promising mechanical properties. However, information about its optical behavior is scarce.

Purpose: The purpose of this in vitro study was to evaluate the color and translucency of zirconia submitted to infiltration and aging.

Esthetic and functional rehabilitation of bilateral congenital absence of maxillary lateral incisors: Minimally invasive surgical and prosthetic approach.

Objective: Congenital absence of maxillary lateral incisors is a frequent clinical challenge which must be solved by a multidisciplinary approach in order to obtain an esthetic and functional restorative treatment. Noninvasive treatments, that are in accordance with the patients' expectations, should be the first therapeutic alternative. If the deciduous tooth is present, minimally invasive dental extraction followed by immediate dental implant placement and provisional restoration is indicated.

Fluorescence of natural teeth and restorative materials, methods for analysis and quantification: A literature review.

Objective: This review integrates published scientific information about the fluorescence of natural teeth, dental resins and ceramics, and the main methods of analysis and quantification presented in the literature.

Overview: Fluorescence is an emission of light (photons) by a substance that has absorbed light of higher energy. In natural teeth, it is more intense in the dentin than in the enamel and presents a bluish-white color.

Transmittance of visible and blue light through zirconia.

The aim of this study was to evaluate the transmittance of visible light (VL) (λ: 400-700 nm) and blue light (BL) (λ: 360-540 nm) through six CAD/CAM zirconia blanks (ZiB) in comparison to a lithium disilicate ceramic (LS2). Disks of the zirconia materials Bruxzir (BX), Cercon (CE), Lava Frame (LF), Lava Plus (LP), Prettau (PT), Zenostar (ZS) and LS2 (EM) were manufactured and the transmittance was measured in a spectrophotometer. ZS, followed by CE, PT, LP, LF, and BX showed the lowest transmittance of VL and BL.

Effect of different irrigations on the bond strength of self-adhesive resin cement to root dentin.

Background: Different disinfectant solutions or medications are indicated prior fiber post bonding procedures.The aim was to evaluate the effect of different pretreatments of root canal on the bond strength of a fiber post luted to dentin with self-adhesive resin cement.

Material And Methods: Forty-eight single-rooted mandibular premolars were endodontically treated and prepared to receive fiber posts.

Impact of laboratory treatment with coloring and fluorescent liquids on the optical properties of zirconia before and after accelerated aging.

Statement Of Problem: Laboratory procedures, such as dipping in coloring and fluorescent liquids, can be used to improve the optical properties of zirconia. However, information is lacking on the effect of these liquids.

Purpose: The purpose of this in vitro study was to evaluate the color differences and degree of fluorescence of zirconia (3Y-TZP) treated with coloring and fluorescent liquids before and after an accelerated aging protocol.

Combining Esthetic Layering and Lithium Disilicate Sintering Technique on Zirconia Frameworks: A Veneering Option to Prevent Ceramic Chipping.

Major and minor chipping of veneering porcelain are two of the most frequent complications in all-ceramic restorations with zirconia frameworks. In cases of major chipping, replacement of the affected restoration may be necessary. High-strength lithium disilicate ceramic offers new options to serve as veneering material in a sintering technique or as repair material for chipping in combination with the adhesive technique.

Oral features and computerized rehabilitation of a young patient with CHARGE syndrome using minimally invasive long-term interim CAD-CAM restorations.

Patients with CHARGE syndrome (where CHARGE stands for coloboma of the iris or retina, heart defects or cardiac malformations, atresia/stenosis of the choanae, retardation of growth and development, genital anomalies, and ear abnormalities) present several orofacial anomalies. Their treatment depends on the specific type of manifestation. To perform the complex oral rehabilitation and achieve a conservative, esthetic, and functional exploration of the definitive treatment goal, computer-aided design and computer-aided manufacturing (CAD-CAM) polymers can be used as long-term interim restorations.

Influence of Accelerated Aging on the Color Stability of Dental Zirconia.

Objective: This study evaluated the influence of different aging times on the color stability of zirconia that is either veneered or not by ceramic.

Materials And Methods: Fifteen zirconia disks (3Y-TZP) were produced (12.0 mm in diameter and 1.

Nasal Floor Elevation with Simultaneous Implant Placement: A Case Report.

Objective: The aim of this paper is to report a clinical case of nasal floor elevation and simultaneous dental implant placement.

Case Report: The patient presented to the clinic of the Center of Education and Research on Dental Implants (CEPID) in the Department of Dentistry at the Federal University of Santa Catarina (UFSC, Florianópolis, Brazil), for follow-up for peri-implantitis control. After clinical and radiographic assessment, two of three implants on anterior maxilla were removed.

Partial-prep bonded restorations in the anterior dentition: Long-term gingival health and predictability. A case report.

Bonded porcelain restorations are a predictable and durable treatment option that can restore not only the strength and function of the teeth but also the esthetic appearance. One important issue in adhesive dentistry is the preservation of sound enamel. Following biomimetic principles, employing minimally invasive applications and adhesive technologies is of paramount importance for successful restorations.