Dental caries is a multifactorial disease that can be conceptualized as an interaction between genetic and environmental risk factors. The aim of this study to examine the effects AMELX, CA6, DEFB1, TAS2R38 gene polymorphism gene-environment interactions on etiology susceptibility in adults. Genomic DNA was extracted from buccal mucosa, adults aged 20 60 y were placed into 1 2 groups: low (DMFT ≤ 5; n = 77) high ≥ 14; 77). frequency AMELX (+522), CA6 (T55M), DEFB1 (G-20A), (A49P)...

Clinical Relevance Er,Cr:YSGG laser irradiation produced morphological alterations on enamel, which may adversely influence the bond strength of certain adhesives, depending their approach and composition.

The effects of resin infiltration and microabrasion on incipient carious lesions by surface microhardness, roughness morphological assessments, resistance to further acid attack treated were evaluated.Eighty artificially-induced randomly divided into five groups (n = 16): with an adhesive (Excite F, Ivoclar Vivadent, Schaan, Liechtenstein), a infiltrant (Icon, DMG, Hamburg, Germany), without polishing (Opalustre, Ultradent, South Jordan, UT, USA), Diamond Excel, FGM, Joinville, SC, Brazil),...

PURPOSE To measure microtensile bond strength (μTBS) of universal adhesives immediately and after 6-month aging, with or without an additional adhesive layer applied on a separately light-cured non-light-cured adhesive. MATERIALS AND METHODS Eighty human third molars were randomly assigned to 8 experimental groups. The Clearfil Universal Bond (Kuraray Noritake) Single (3M Oral Care) used in self-etch mode (following the manufacturer's directions), either light cured not before application...

This study evaluated the effect of additional enamel etching on clinical performance Class III composite restorations bonded with a mild two-step self-etch adhesive system in three-year evaluation service.Using paired-tooth design, 38 patients received at least one pair restorations. In each paired cavity, (Clearfil SE Bond) was used, either (C-SE etch) or without etching, using phosphoric acid non-etch). Clearfil AP-X used as restorative material for all Evaluation performed baseline and...

Clinical Relevance The two-step etch&rinse and the self-etch adhesive systems tested in this study demonstrated similar clinical performance Class II cavities after two years.

ABSTRACT Objective: The aim of this study was to evaluate the radiopacity different composite resins and compare values those human enamel dentine. Materials Methods: Five specimens each material with thicknesses 2 mm were prepared radiographed alongside aluminum step wedge dentin. Three occlusal radiographs for taken digitized using a desktop scanner. Mean gray test materials measured Image J software. Then conversion performed according establish materials, in millimeters equivalent Al....

The aim of this in vitro study was to evaluate the microindentation hardness and chemical composition residual dentin left at cavity bottom following removal carious using Carisolv chemomechanical Er:YAG laser caries excavation methods comparison with conventional tungsten-carbide bur excavation. Sixty-nine extracted permanent teeth occlusal were assigned into three groups according technique. Carious guided by tactile method a caries-staining dye. In stereomicroscope images (100×) samples,...

This in vitro study aimed to examine the effect of a nano-filled protective coating material on microleakage nanocomposite resin during bleaching treatment. Standardized class V cavities were prepared middle third buccal surfaces ninety human incisors and restored with two-step etch-and-rinse adhesive nanohybrid composite for three groups (n = 30). In Group A, restorations covered G-Coat Plus bleached 10% carbamide peroxide. B, teeth only bleached. C, no or was applied. A performed 8h/day 14...

The purpose of this study was to investigate the effect dental fluorosis on shear bond strength a composite material dentine. Forty human premolar teeth were classified according severity using Thylstrup and Fejerskov index divided into four groups (TFI scores 0, 3, 4 5) 10 teeth. Non-fluorosed score 0) served as control group. A self-etching light-cured bonding system, Clearfil SE Bond, micro-hybrid composite, AP-X selected for study. Buccal surfaces mounted ground flat expose Composite...

Radioactivity is mainly due to natural ones from earth and also outside of the atmosphere so-called cosmic radiation.Although radiation sources their dose effect on humans are known, there still some conflict health especially dental restoration.The limited data for radioactive materials potential risks patient makes those interesting be investigated.For this purposes, uranium, thorium potassium activity have been measured in restorative materials, such as resin composites containing silica...

Background. The use of trayless at-home bleaching agents in darker teeth is raising some concerns due to their unknown efficacy. purpose this vitro study was evaluate the effect tooth discolouration severity on efficacy and colour stability two different systems. Methods. Ninety enamel-dentin samples were divided into groups: lighter tand teeth. each group further three groups (n=15): (1) tray-based system with 10% carbamide peroxide (Opalescence Oh) (control group); (2) a tray applied...

Whitening of fluorosis stains ranging from yellow to dark brown presents a great challenge the dentists. The aim this study was report clinical case 32-year-old female patient with moderate fluorosis, who treated using combination light-assisted in-office and at-home whitening system. performed 25% hydrogen peroxide (Zoom DayWhite, Discus Dental, Stamford, USA) for four 15-min sessions supplemental light (Philips Zoom, immediately followed by home take-home custom tray 22% carbamide...

The aim of this study was to investigate interexaminer and intraexaminer agreement in the replacement decision for Class I amalgam restorations. Three examiners evaluated restorations clinically with bitewing radiographs. One hundred twelve were secondary caries, body fracture, deficient anatomic form (contour), ditched margins, marginal overhangs. After one month, assessments repeated by same under conditions. Cohen's Kappa analysis used analyze data. number decisions varied from 12 27 6 14...

Multifaktöriyel bir hastalık olan diş çürüğünün etiyolojisi yıllardır araştırılmaktadır. Aynı çevresel risk faktörlerine maruz kalan bireylerin çürük riskinin aynı olmadığı belirlenmiş ve bu sonuç çürüğün etiyolojisinde genetik faktörlerin de rol oynadığını akla getirmiştir. Diş çürükleri toplumun tamamında görüldüğü için geçmişte, üzerindeki etkisi önemsenmemiştir. Son on yılda riskine etki eden faktörler ile ilişkili çalışmalarda artış gözlenmiştir. çürüğü üzerine yapılan araştırmalar...