Bulk-fill composites have been introduced to facilitate the placement of deep direct resin composite restorations. This study aimed at analyzing cervical marginal integrity bulk-fill vs incremental and open-sandwich class II restorations after thermomechanical cycling using replica scanning electron microscopy (SEM) ranking according World Dental Federation (FDI) criteria. Box-only cavities were prepared in 91 maxillary premolars with gingival margin placed 1 mm above below cemento-enamel...

Abstract Purpose The coronavirus disease 2019 (COVID‐19) pandemic has significantly challenged dental education. This study investigated the procedures outlined by faculty members to maintain quality education in a safe bioenvironment and adequately control risk of cross‐infection Method Dental educators from schools around world were invited join an online survey considering different demographic factors. consisted 31 questions that classified into separate sections, including academic...

Cervical interfacial bonding quality has been a matter of deep concern. The purpose this study was to analyze microtensile bond strength (MTBS) and cervical gap distance (IGD) bulk-fill vs incremental-fill Class II composite restorations. Box-only cavities were prepared in 91 maxillary premolars (n = 7) with gingival margin placement 1 mm above the cementoenamel junction at one side below it on other side. Eighty-four divided into self-etch total-etch groups further subdivided six...

This study investigated the color stability and microhardness of five composites exposed to four beverages with different pH values. Composite discs were produced (n=10); Filtek Z250 (3M ESPE) P90 applied in two layers (2 mm, 20 seconds), Tetric N-Ceram Bulk Fill (TetricBF, Ivoclar Vivadent) SonicFill (Kerr) bulk (4 mm) then light cured (40 seconds, Ortholux-LED, 1600 mW/cm2). Indirect composite Sinfony was (Visio system, 3M ESPE). The specimens polished tested for stability; ΔE calculated...

Currently, the principal strategy for treatment of carious defects involves cavity preparations followed by restoration natural tooth structure with a synthetic material inferior biomechanical and esthetic qualities questionable long-term clinical reliability interfacial bonds. Consequently, prevention minimally invasive dentistry are considered basic approaches preservation sound structure. Moreover, conventional periodontal therapies do not always ensure predictable outcomes or completely...

Abstract Objectives Sufficient depth of cure allows bulk-fill composites to be placed with a 4-mm thickness. This study investigated bulk versus incremental application methods by visualizing shrinkage vectors in flowable and conventional composites. Materials Cylindrical cavities (diameter = 6 mm, 4 mm) were prepared 24 teeth then etched bonded OptiBond FL (Kerr, Italy). The mixed 2 wt% radiolucent glass beads. In one group, smart dentin replacement (SDR, Dentsply) was applied “SDR-bulk” (...

This investigation evaluated the effect of flowable liners beneath a composite restoration applied via different methods on pattern shrinkage vectors.Forty molars were divided into five groups (n = 8), and cylindrical cavities prepared bonded with self-etch adhesive (AdheSe). Tetric EvoCeram Bulk Fill (TBF) was used as filling material in all cavities. The EvoFlow (TEF) SDR to line cavity floor. In gp1-TBF, not used. TEF thin layer gp2-fl/TEF + TBF gp3-fl/TEF TBFincremental. Two composites...

To evaluate the dimensional accuracy of occlusal veneers printed using a novel direct ink writing (DIW) system and clinically approved dental composite. A three-dimensional printer was developed based on extrusion-based DIW principle. The printer, constructed primarily with open-source hardware, calibrated to print flowable resin composite (Beautifil Flow Plus). feasibility this technology assessed through an evaluation 20 laboratory confocal scanner. precision determined by pairwise...

This in vitro study analysed potential of early proximal caries detection using 3D range data teeth consisting near-infrared reflection images at 850 nm (NIRR).Two hundred fifty healthy and carious permanent human were arranged pairwise, examined with bitewing radiography (BWR) NIRR validated micro-computed tomography. findings evaluated from buccal, lingual occlusal (trilateral) views according to yes/no decisions about presence caries. Reliability assessments included kappa statistics...

Purpose This retrospective study investigates oral health and care in patients with neurodegenerative cerebrovascular diseases (CVDs) treated a dental facility for people disabilities.Methods Oral indices decayed, missing, filled teeth (DMFT), periodontal screening index (PSI), treatment spectrum, hygiene were evaluated 152 multiple sclerosis, Parkinson's disease, dementia, CVD 30 controls. Regression analyses identified group differences influencing factors on DMFT.Results Patients or had...

Abstract Background The aim of this study was to evaluate the postbrushing tooth-whitening effect toothpaste containing hydroxyapatite nanoparticles (nano-HAPs). impact concentration on whitening performance nano-HAP also investigated. Methods Two concentrations (10 wt% and 1 wt%) were incorporated in nonabrasive toothpastes. Forty bovine incisors randomly assigned into four groups: 10 nano-HAP, without as a negative control water blank control. Each tooth treated with three times...

Abstract Objectives This study evaluated the adhesion and whitening effects of a combination P11-4 self-assembling peptide hydroxyapatite (peptide-HAP) on bovine enamel. Methods Forty-six caries-free teeth were selected, 40 randomly allocated to one five groups ( n = 8). First, application frequency, exposure time, storage in saliva an experimental low-concentrated peptide-HAP suspension (0.5 wt% HAP; Curodont, Credentis) compared with commercial bleaching agent (VivaStyle Paint Plus, VS,...

Bulk-fill composites are increasingly used in stress-bearing areas posterior teeth, with a diversity of reports concerning their effectiveness and clinical reliability. The objective this randomized control study was to investigate the bulk-fill versus veneered Class II composite restorations. A double-blind split-mouth technique employed 80 subjects recruited for restoring caries one molar bilaterally same arch following respective inclusion exclusion criteria after obtaining written...

Abstract Objectives People with severe intellectual or multiple disabilities (PIMD) have been receiving dental care in a specialized unit offering special dentistry. For most of these adult patients, the initial consultation is complaint driven. In addition, limited ability to cooperate due their often means that treatment for patients usually carried out under general anesthesia (GA). Chairside attempts are exception rather than rule. This retrospective study evaluated whether consistent...