The choice of an irrigating solution for use in infected root canals requires previous knowledge the microorganisms responsible infectious process as well properties different solutions. Complex internal anatomy, host defenses and microorganism virulence are important factors treatment teeth with asymptomatic apical periodontitis. Irrigating solutions must have expressive antimicrobial action tissue dissolution capacity. Sodium hypochlorite is most used endodontics, because its mechanism...

Knowing the outcome of root canal treatment (RCT) is determinant to substantiate clinical decision making process, especially when RCT weighed against extraction natural teeth or replacement by prosthetic elements. The ideal scenario in all situations should combine healing/prevention disease (apical periodontitis) and functional retention tooth. Understanding risk factors associated with endodontic failure a key factor increase chances success. logical action reverse existing disease, which...

The objective of this study was to analyze the antimicrobial effect 2% sodium hypochlorite (NaOCl) and chlorhexidine (CHX) by agar diffusion test direct exposure test. Five microorganisms: Staphylococcus aureus, Enterococcus faecalis, Pseudomonas aernginosa, Bacillus subtilis, Candida albicans, one mixture these were used. These strains inoculated in brain heart infusion (BHI) incubated at 37 degrees C for 24 h. For (ADT), 18 Petri plates with 20 ml BHI 0.1 microbial suspensions, using...

Operative procedural errors must be well analyzed in order to avoid influence negatively the root canal treatment (RCT) prognosis. The successful RCT prevents tooth loss and avoids pain apical periodontitis. This review aimed categorize common operative procedure clinical factors associated with RCT. Based on this, will approached of procedures within sequence: endodontic planning, pulp periapical disease diagnosis, anaesthesia, access cavity preparation, isolation rubber dam, filling...

Abstract This study evaluated the anatomical relationship between posterior teeth root apices and maxillary sinus floor (MSF) on 202 cone beam computed tomography (CBCT) exams. The distance MSF, as well MSF thickness of cortical bone closest to furcation regions were measured. vertical horizontal relationships with molar roots classified into categories adapted from criteria proposed by Kwak et al. (14). shortest distances observed in mesiobuccal second (0.36±1.17 mm) palatal first...

The site of the sinus tract depends on rate resistance against abscess exudate drainage, bone morphology, and distance from root apex to outer cortical bone. To assess apical thickness in buccal palatal/lingual aspects maxillary mandibular teeth, using a high-resolution cone-beam computed tomography (CBCT) system.In total, 422 CBCT examinations were included study, resulting sample 1400 teeth. scans acquired by PreXion 3D, with protocol. was taken as between center foramen lingual/palatal...

A retrospective survey was designed to identify diagnostic subgroups and clinical factors associated with odontogenic pain discomfort in dental urgency patients. consecutive sample of 1,765 patients seeking treatment for at the Urgency Service Dental School Federal University Goiás, Brazil, selected. Inclusion criteria were pulpal or periapical that occurred before (minimum 6 months after last appointment), exclusion teeth developmental anomalies missing information incomplete records....

Streptococcus mutans is the microorganism mostly responsible for initiation of tooth decay and also progression an established lesion. Silver has been used its antibacterial properties many years, in different forms: ionised elementary forms, as silver zeolites or nanoparticles. The purpose this study was to evaluate activity three dental cements modified by nanosilver. Three were used: Sealapex, RelyX ARC, Vitrebond. incorporated with 0.05 mL nanoparticles solution. Control groups prepared...

Abstract This study aimed to compare the effects of intracanal medication pastes Bio-C Temp® (BC), UltraCal XS® (UC), and Pure Calcium Hydroxide (CH) on crown color change, pH, antimicrobial activity. Color change was assessed using CIEL*a*b* space system parameter. pH values were measured at 3, 24, 72, 168 hours. Antimicrobial activity evaluated agar diffusion direct exposure tests. Statistical analyses conducted ANOVA, Kruskal-Wallis, Friedman tests (α = 0.05). After 15 days, BC exhibited...

The purpose of this work was to develop a model system study antimicrobial strategies in endodontic biofilms. Enterococcus faecalis suspension colonized 10 human root canals. Five milliliters Brain Heart Infusion (BHI) were mixed with 5 mL the bacterial inoculums (E. faecalis) and inoculated sufficient volume fill canal during 60 days. This procedure repeated every 72 h, always using 24-h pure culture prepared adjusted No. 1 MacFarland turbidity standard. Biofilm formation analyzed by...

Background: Silver has a long history of use in medicine as an antimicrobial and anti-inflammatory agent.Silver nanoparticles (NAg) offer the possibility to control formation oral biofilms through with biocidal, anti-adhesive, delivery abilities.This study aims evaluate antibacterial effect resin luting cements without NAg, their influence on color, sorption solubility.Material methods: NAg were incorporated two dual-cured (RelyX ARC (RA) color A1 RelyX U200 (RU) A2) concentrations (0.05%...

The aim of this study was to determine the minimum inhibitory concentration (MIC) and antimicrobial effectiveness by direct exposure test 4 endodontic irrigants [1% sodium hypochlorite (NaOCl), 2% chlorhexidine (CHX), 1% calcium hydroxide (Ca(OH)2; prepared with 1 g Ca(OH)2 100 mL sterile distilled water), a solution + detergent (HCT20)] for S. aureus, E. faecalis, P. aeruginosa, B. subtilis, C. albicans mixed culture. Microbial growth analyzed two methods: turbidity culture medium that...

The objective of this study was to compare, by two experimental methods, the antimicrobial efficacy different root canal fillingpastes used in pediatric dentistry. tested materials were: Guedes-Pinto paste (GPP), zinc oxide-eugenol (OZEP), calcium hydroxide (CHP), chloramphenicol + tetracycline oxide and eugenol (CTZP) Vitapex®. Fiven microbial strains (S. aureus, E. faecalis, P. aeruginosa, B. subtilis C. albicans) obtained from American Type Culture Collection were inoculated Brain Heart...

The purpose of this research was to verify the influence Iodoform on antimicrobial potential calcium hydroxide. S. aureus, E. faecalis, P. aeruginosa, B. subtilis, C. albicans were biological indicators. substances tested were: hydroxide + saline; saline. For agar diffusion test, 18 Petri plates with 20 ml BHI inoculated microbial suspensions. Fifty-four cavities made and filled tested. diameters inhibition then measured. In direct exposure 162 #50 sterile absorbent paper points immersed in...

The objective of this study was to evaluate the influence irrigants on antimicrobial potential calcium hydroxide paste in dogs' teeth with apical periodontitis. Forty-eight premolar adult mongrel dogs had their root canals opened oral environment for 6 months. were prepared and treated different irrigating solutions intracanal medicaments, according following groups: 1) 2.5% sodium hypochlorite (NaOCl) + (CHP); 2) 2% chlorhexidine (CHX) CHP; 3) vinegar 4) vinegar. In group 4, both solution...

The aim of this study was to evaluate the antimicrobial potential ozone applied 3 different solutions in an ultrasonic cleaning system against Staphylococcus aureus. A total 120 mL S. aureus were mixed 6 L experimental (sterilie distilled water, vinegar and sterile water + Endozime AWpluz) used a (UCS). Ozone produced by electric discharge through current oxygen bubbling with flow rate at 7g/h (1.2%) into microbial suspensions. Ten each suspension collected 5 fold dilutions made 9 BHI...

The solubility, pH, electrical conductivity, and radiopacity of AH Plus MTA FillApex were evaluated. In addition, the surfaces morphologies sealers analyzed by using scanning electron microscopy. For pH test, samples immersed in distilled water at different periods time. same solution was used for conductivity measurement. solubility evaluated according to ANSI/ADA. Statistical analyses carried out 5% level significance. presented higher mean value conductivity. No significant difference...

The aim of this study was to detect root isthmuses in maxillary and mandibular molars evaluate their frequencies using map-reading dynamics CBCT images. Two hundred extracted human were used ex vivo assay. A consecutive sample two (first second) selected from exams. detected the pulp orifice apex recorded according beginning end, into categories: 1. begin end cervical third; 2. third middle 3. apical 4. 5. 6. 7. no isthmus. scans obtained different planes with axial slices 0.5 mm/0.5 mm...

The purpose of this clinical study was to compare the accuracy working length (WL) determination using cone-beam computed tomography (CBCT), conventional periapical radiographies and electronic apex locator.This conducted during root canal treatment 19 patients with a total 30 single-rooted teeth diagnosed apical periodontitis. After taking initial parallel radiographies, file advanced into until WL detected by locator. Subsequently, measured were taken set in canal. Afterwards, CBCT images...