13 documents found, page 1 of 2
Volume and/or Time of NaOCl Influences the Fracture Strength of Endodontically ...
Souza,Erick M; Quadros,José de Ribamar P.; Silva,Emmanuel J. N. L.; De-Deus,Gustavo; Belladonna,Felipe G.; Maia-Filho,Etevaldo MAbstract The aim of this study was to evaluate whether amplifying the volume and/or time of contact of NaOCl affects the fracture strength of endodontically treated bovine teeth. Four bovine incisors from 10 animals were allocated into 4 groups using a split-mouth design. Root canals were instrumented using a sequence of 4 manual stainless steel files and irrigated with a 5.25% alkalized NaOCl solution. The tot...
Evaluation of Apically Extruded Debris Using Positive and Negative Pressure Irr...
Barbosa-Ribeiro,Marlos; Arruda-Vasconcelos,Rodrigo; Fabretti,Fabio L.; Silva,Emmanuel J. N. L; De-Deus,Gustavo; Gomes,Brenda P. F. A.Abstract This study evaluated the amount of apically extruded debris after chemo-mechanical preparation (CMP) using positive and negative pressure irrigation systems [Conventional irrigation (CI) and EndoVac (EV)] in association with different irrigants [6% Sodium Hypochlorite (NaOCl), 2% Chlorhexidine gel + saline solution (CHXg + SS), 2% Chlorhexidine solution (CHXs) or Saline solution (SS)]. Eighty mandibula...
Effect of Intermediate Flush Using Different Devices to Prevent Chemical Smear ...
Silva,Camilla Corrêa; Ferreira,Vivian Maria Durange; De-Deus,Gustavo; Herrera,Daniel Rodrigo; Prado,Maíra do; Silva,Emmanuel João Nogueira Leal daAbstract This study compared the effect of intermediate flush with distilled water delivered by conventional irrigation, EndoVac microcannula or Self-Adjusting File (SAF) system in the prevention of chemical smear layer (CSL) formation. Thirty human premolars were used. Canals were prepared with Reciproc system and 5.25% NaOCl. After chemomechanical preparation, samples were divided in 3 groups (n=10) according...
Safe Mechanical Preparation with Reciprocation Movement without Glide Path Crea...
Rodrigues,Evaldo; De-Deus,Gustavo; Souza,Erick; Silva,Emmanuel João Nogueira LealAbstract The aim of the present study was to prospectively assess the frequency of teeth in which the Reciproc instruments were able to reach the full working length (WL). This case series study enrolled 277 consecutive teeth requiring primary endodontic treatment performed with the Reciproc system (VDW) without a previous glide path by 3 experienced endodontists. Instruments R25, R40 or R50 were selected, resp...
Unusual Deviation of the Main Foramen from the Root Apex
Versiani,Marco Aurélio; Ahmed,Hany Mohamed Aly; Sousa-Neto,Manoel Damião de; De-Deus,Gustavo; Dummer,Paul Michael HowellAbstract The relationship of the main foramen to the anatomic root apex has been the subject of several studies. Although they are anatomically close, they rarely coincide, and their distance can vary according to age or tooth type, ranging from 0.2 to 3.0 mm. The aim of this short communication was to evaluate the distance between the main foramen of independent middle mesial canals (MMCs) and the anatomical m...
Cytotoxicity Profile of Endodontic Sealers Provided by 3D Cell Culture Experime...
Silva,Emmanuel João Nogueira Leal; Carvalho,Nancy Kudsi de; Ronconi,Carina Taboada; De-Deus,Gustavo; Zuolo,Mario Luis; Zaia,Alexandre AugustoAbstract The aim of the present study was to evaluate the cytotoxic effects of five endodontic sealers (AH Plus, Endomethasone N, EndoSequence BC, MTA Fillapex and Pulp Canal Sealer EWT) using a three-dimensional (3D) cell culture model. A conventional bi-dimensional (2D) cell culture model was used as reference technique for comparison. Balb/c 3T3 fibroblasts were cultured in conventional bi-dimensional cell c...
On the Causality Between Dentinal Defects and Root Canal Preparation: A Micro-C...
De-Deus,Gustavo; Belladonna,Felipe Gonçalves; Marins,Juliana Roter; Silva,Emmanuel João Nogueira Leal; Neves,Aline de Almeida; Souza,Erick MirandaAbstract This study aimed to evaluate the cause-effect relationship between canal preparation with ProTaper Universal (PTU) system and dentinal defects formation using micro-computed tomography (micro-CT) analysis. Forty mesial canals of mandibular molars with a type II Vertucci's canal configuration were scanned at an isotropic resolution of 14.16 µm. The sample was assigned to an experimental (n = 30) and a c...
Postoperative Pain after Foraminal Instrumentation with a Reciprocating System ...
Silva,Emmanuel João Nogueira Leal da; Monteiro,Maria Rachel; Belladonna,Felipe Gonçalves; Almeida,José Flávio; De-Deus,Gustavo; Neves,Aline de AlmeidaThe aim of the present study was to evaluate and compare postoperative pain after foraminal instrumentation using 5.25% sodium hypochlorite (NaOCl) or 2% chlorhexidine (CHX) gel irrigation protocol in nonvital single-rooted teeth after reciprocating instrumentation. Sixty-two volunteers presenting a single root canal diagnosed with asymptomatic necrosis and apical periodontitis were randomized into 2 experiment...
Three-dimensional Quantitative Porosity Characterization of Syringe- versus Han...
De-Deus,Gustavo; Scelza,Miriam Z.; Neelakantan,Prasanna; Sharma,Subash; Neves,Aline de Almeida; Silva,Emmanuel João Nogueira LealThe aim of the present study was to compare the porosity characteristics of AH Plus Jet(tm) syringe-mix and the conventional hand-mixed AH Plus root canal sealers by three-dimensional quantitative high-resolution micro-computed tomography (micro-CT). Seven test specimens were prepared from each tested sealer by a single operator following the manufacturer's instructions and poured into pre-lubricated plastic sp...
Micro-CT Evaluation of Non-instrumented Canal Areas with Different Enlargements...
De-Deus,Gustavo; Belladonna,Felipe Gonçalves; Silva,Emmanuel João Nogueira Leal; Marins,Juliana Roter; Souza,Erick Miranda; Perez,RenataThe aim of this study was to compare the percentage of non-instrumented area of root canals prepared with different enlargements using single-file reciprocating systems (Reciproc and WaveOne) and a conventional multi-file rotary (BioRaCe) system by micro-computed tomographic analysis. Thirty mesial roots of mandibular molars with moderate curvature (10° to 20°) presenting a type II Vertucci canal configuration ...