<b><i>Objective:</i></b> To assess the erosive potential of various soft drinks by measuring initial pH and titratable acidity (TA) to evaluate enamel surface roughness using different exposure times. <b><i>Materials Methods:</i></b> The (group 1: Coca-Cola; group 2: orange juice; 3: Cedevita; 4: Guarana, 5: strawberry yoghurt) was measured a meter, TA titration with NaOH. Enamel samples (n = 96), cut from unerupted human third molars, were...

BACKGROUND Fear has always been closely linked to dentistry but it could be intensified by the objective risks imposed pandemic. The of this study was determine profile frightened dental patient during COVID-19 pandemic and measures taken dentists reduce fear increase security among their patients. MATERIAL AND METHODS An anonymous online survey conducted between March 15 April 15, 2021. respondents were 2060 adult citizens Republic Serbia. In addition demographic data, data related...

BACKGROUND Rotary endodontic instruments are increasingly used in root canal treatment and have replaced stainless steel manual files. Cyclic fatigue is the cyclic loading of stress to produce deformation or fracture. This study aimed evaluate compare effects autoclave sterilization on 5 types rotary instruments. MATERIAL AND METHODS ProTaper Universal, BioRace, Next, Twisted File, HyFlex CM were included this study. Each type 96 instruments, divided into 4 groups according number cycles (0,...

Abstract To determine whether sodium hypochlorite (NaOCl) with 0.2% chlorhexidine gluconate (CHX) leads to colour change and precipitate formation, ultrastructurally analyse the dentine surface after simultaneous irrigation 0.5% NaOCl CHX. Four tubes in which 5ml of different concentrations 0,2% CHX were placed, observed every 15 minutes first two hours 7 days. Mixture solutions centrifuged at 800 rpm/4 min. A is under light‐microscopy. Thirty‐five single‐rooted teeth instrumented using...

Abstract The present in vitro study was aimed at evaluating the morphological changes cemento‐enamel junction (CEJ) after exposure to acidic beverages using scanning electron microscopy (SEM). initial pH and titratable acidity (TA) analyzed from follow groups: (I) Coca cola, (II) orange juice, (III) Cedevita, (IV) Red Bull, (V) Somersby cider, (VI) white wine. CEJ samples ( n = 64), obtained unerupted third molars, were allocated one control (artificial saliva, 16) six experimental groups...

Introduction/Aim. Chronic apical periodontitis represents dynamic continuation of the presence endodontic infection in root canal system tooth, when innate and acquired immune responses are activated various cells inflammatory mediators recruited, which cause consequent destruction periapical tissues development lesions. The aim study was to analyze concentration IL-8 tissue homogenates lesions compare obtained results with symptomatology patients size lesion. Methods. A total 93 samples...

Background.Beer, red and white wine are acidic drinks whose frequent consumption can increase the risk of dental erosion.Objectives.To establish effect beer, on morphology surface roughness (SR) human enamel using different exposure times in a cyclic de-and remineralization model vitro. Materials methods.The experiment included 33 surgically extracted impacted third molars from patients aged 18-25 years.Enamel samples obtained by cutting crowns (n = 132) were submitted to alternate cycles...

Background:The impact of bleaching on the cemento-enamel junction (CEJ) is not well known. Due to frequent sensitivity cervical region teeth after vital bleaching, aim present study was evaluate morphological features CEJ human application fluoridated and fluoride-free agents, as post-bleaching fluoridation treatment, by scanning electron microscopy (SEM) analysis.Material/Methods:Thirty-five extracted permanent were longitudinally cut, yielding 70 specimens. Thirty specimens randomly...

Summary Introduction Cytokine network plays an important role in pathogenesis of chronic periapical lesions. The aim this study was to determine the concentration interleukin-6 (IL-6) tissue homogenates human lesions and correlate its levels with symptomatology size Materials Methods 93 samples were obtained after extraction teeth. Samples divided according clinical presentation as symptomatic asymptomatic, large small. IL-6 analyzed using ELISA. Results Statistically significant difference...

Knowledge of external and internal morphology the teeth is very important for members all branches dental practice. In conservative dentistry knowing morphological characteristics crowns significantly because tendency certain tooth groups decay successful restoration in functional aesthetic sense. Successful endodontic treatment impossible without number position root canals inside them. The variability human body includes too. Internal features can be analyzed details only on extracted...

BACKGROUND Apical periodontitis is caused by infected dental pulp and may be associated with caries or trauma, which can destroy periradicular tissues. This study included periapical tissue of patients chronic apical aimed to evaluate the presence cytomegalovirus (CMV) Epstein-Barr virus (EBV) using polymerase chain reaction (PCR), determine levels inflammatory cytokines enzyme-linked immunoassay (ELISA). MATERIAL AND METHODS A total 79 participated in this study. Periapical lesions were...

Introduction. The balance between proinflammatory and anti-inflammatory cytokines plays an important role in the pathogenesis of chronic periapical lesions. aim this study was to determine concentration TNF-? tissue homogenates lesions analyze its levels relation symptomatology size Materials Methods. 93 samples were obtained after extraction teeth. Samples classified according clinical presentation as symptomatic asymptomatic, large small. analyzed using ELISA. Results. results showed...

SUMMARY The aim of the paper was to investigate tissue response implantation "Endomethasone" (Septodont) in artificially prepared defect rat mandible. Sixteen Wistar male rats were used for experiment. After anesthesia, a between midline and mental foramen left mandible made (diameter 1.4 mm, 1.6 mm depth) using sterile steel burs. In experimental group (12 animals) “Endomethasone“ implanted while control (4 heal spontaneously. One half animals both groups sacrificed after fifteen days,...

The application of irrigating solutions is essential in chemomechanical treatment tooth root canal. However, chemical and electrochemical aggressiveness the solutions, which directly act on instruments, may damage their surface. aim this study was to investigate sensitivity nickel-titanium (Ni-Ti) stainless steel endodontic files corrosive action sodium hypochlorite (NaOCl), chlorhexidine gluconate (CHX) ethylenediamine tetraacetic acid (EDTA). Testing corrosion instruments performed by...

One of the primary goals in endodontics is efficient cleaning and shaping root canal while maintaining its original configuration. Numerous studies highlight advantage using nickel-titanium instruments most important their high flexibility ability to penetrate curved canals. The aim this study was analyze ultrastructure surface endodontic files before after use. Eighty-four were included study. used one, three six times for preparation on extracted upper premolars. analysis performed based...

The identification of the mental foramen is important for both diagnostic and clinical procedures.The knowledge about its accurate location significant in reducing complications that may occur during surgical endodontic treatments involving area.The purpose this study was to determine position relation radiographic apex mandibular second premolar on panoramic radiographs.Two hundred digital radiographs were analyzed study.Horizontal vertical determined two reference lines which passed...

The mental foramen is an important anatomic landmark not only in dentistry but also forensics, and the knowledge about its accurate location receiving local anesthesia, during surgical endodontic procedures. purpose of this study was to determine most common position shape Southeast Serbian population. Three hundred panoramic radiographs were analyzed horizontal determined according reference lines drawn at longitudinal axes first second premolar mesial root molar. In 62% cases between...

Introduction. Root canal preparation is one of the most important active phases in treatment infected and noninfected teeth. Nickel-titanium (NiTi) instruments are increasingly used endodontic therapy due to their superior properties compared those made stainless steel. The aim this research was perform an analysis comparison cyclic fatigue ProTaper Universal Next rotary NiTi full rotation simulated canals. Material methods. Twelve twelve were analyzed study. tested artificial stuffed a...

Dental erosion is a pathologic, non-bacterial hard dental tissue loss induced by extrinsic or intrinsic acids.This in vitro study aimed to evaluate and compare the morphology surface roughness of enamel after erosive challenge some acidic substances, Coca-Cola, orange gastric juice.Enamel samples (n = 48), obtained preparation surgical extracted human third molars, were subjected artificial juice commerciallyavailable Coca-Cola immersion 50 ml solutions for 15 min, three times daily, 10...

Introduction. Although many studies have reported various advantages of nickel-titanium endodontic instruments, the use stainless steel files still presents a standard in everyday practice. The aim this study was to evaluate ultrastructure surface instruments before and after their use. Material Methods. Fourteen sets non-used reamers were included study. Each set used one, three or six times simulated clinical conditions on extracted maxillary premolars. After subjected cleaning...

Summary Host response to antigen stimulation in chronic inflammatory periapical lesions is mainly controlled by the balance between proinflammatory and anti-inflammatory cytokines. The aim of this study was determine concentration TGF-β 1 tissue homogenates analyse its level relation symptomatology patients size lesions. Ninety three samples were obtained after extraction teeth. Samples divided according clinical symptoms as symptomatic asymptomatic, large small. analyzed using ELISA....

Summary Introduction Separation (fracture) of endodontic instruments in the root canal during chemomechanical instrumentation is a complication that can compromise final outcome treatment. One most common factors cause fatigue and consequent fracture surface corrosion. The aim this study was to investigate ultrastructure corrosion made stainless steel nickel-titanium after immersion commonly used irrigants. Material Methods included 48 hand files. All were immersed 5.25% sodium hypochlorite,...

In order to forensic use, dental materials should be sufficiently radiopaque detected against enamel/dentin, resulting in correct evaluation of restorations contours, detection secondary caries, marginal defects, etc. Radiopacity contemporary composites has been improved by inserting filler-particles containing heavy metals: aluminum, barium, strontium, zirconium, ytterbium. Tetric composite group (Te-econom, Ceram, EvoCeram) the most suitable radiopacity; T-econom highest radiopacity...