Investigating the impact of whitening toothpastes on bioactive resin-based restorative materials: a comparative analysis.

Objective: To assess the color stability and surface roughness of bioactive resin-based composite following exposure to coffee staining and brushing with whitening toothpastes.

Methods: Disk-shaped specimens of Filtek Z250 (FZ), Beautifil Flow Plus (BFP), Activa Presto (AP), and Fuji II LC (FII) were stained with coffee and then brushed with one of three toothpastes, conventional (C-TP), non-peroxide whitening (W-TP) or hydrogen peroxide-containing whitening toothpaste (HPW-TP) for 10 000 cycles. Changes in color (ΔE) and surface roughness were measured.

Evaluating flexure properties, hardness, roughness and microleakage of high-strength injectable dental composite: an in vitro study.

Background: Recently, a new generation of high-strength flowable dental composites has been introduced by manufacturers. The manufacturers claim that these materials have enhanced mechanical and physical properties and are suitable for use in a wide range of direct anterior and posterior restorations, even in high-stress bearing areas.

Aim: The objective of this study was to assess certain physical and mechanical properties of these recently introduced high-strength flowable composites in comparison to conventional multipurpose dental composites.

Effect of Light Curing Distance on Microhardness Profiles of Bulk-Fill Resin Composites.

Bulk-fill (BF) dental resin composites are made to be polymerized in increments of up to 5 mm rather than the 2 mm increment recommended for conventional composites. This project aimed to determine microhardness (MH) profiles of BF resin composites at different depths and varying light cure (LC) distances from the light source in an attempt to mimic varying clinical situations. Forty-eight cylindrical specimens (4 mm diameter and 6 mm height) were prepared from 3 BF composites: Tetric N-Ceram Bulk-Fill (TBF), Filtek One Bulk-Fill (FBF), and Sonic-Fill 2 (SF2).

Utilizing Light Cure Units: A Concise Narrative Review.

The use of photo-curable resin composite restorations is an essential treatment modality in modern dental practice. The success and longevity of these restorations depend on achieving predictable and effective polymerization. Understanding the dynamics of the polymerization and the effect of light cure units (LCUs) on this process is paramount.

Infection Control Barrier and Curing Time as Factors Affecting the Irradiance of Light-Cure Units.

Objective: The objective of the study is to investigate the effect of infection control barrier (ICB) and curing time on irradiance of light cure units (LCUs).

Methods: Irradiance (mW/cm) of the LCUs at a government dental school were recorded with and without ICB at 0 (T), 10 (T), and 20 (T) seconds using a digital radiometer. Data were analyzed using IBM SPSS Statistics Version 17 for Windows software for the analysis of variance and Bonferroni methods at 0.

Effect of self-etch adhesives on the internal adaptation of composite restoration: a CP-OCT Study.

Despite improvements in dental adhesive materials, internal adaptation remains a challenge in bonded restorations. The aim of this study was to compare microgaps and internal floor adaptation between two different self-etch adhesives in class-V cavities using cross-polarization optical coherence tomography (CP-OCT). In this in vitro study, standardized round class-V cavities were prepared in 20 non-carious human upper central incisor teeth.

Efficiency of light curing units in a government dental school.

The light intensity of a light-curing unit is a crucial factor that affects the clinical longevity of resin composites. This study aimed to investigate the efficiency of light-curing units in use at a local governmental dental school for curing conventional and bulk-fill resin materials. A total of 166 light-curing units at three locations were examined, and the brand, type, clinic location, diameter of curing tip, tip cleanliness (using a visual score), and the output (in mW/cm using a digital radiometer) were recorded.

Adapting the diagnostic definitions of the RDC/TMD to routine clinical practice: a feasibility study.

Unlabelled: The Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) is a well-known diagnostic tool for clinical trials on TMD.

Objectives: This study aims to assess the reliability, validity and feasibility of a new method of physically diagnosing temporomandibular disorders (TMD), designed for routine clinical use. This version, known as Clinical Examination Protocol-TMD (CEP-TMD), was compared to the gold standard original RDC/TMD.