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Syringe irrigation in confluent canals: A sequential computational fluid dynami...
Rito Pereira, Mário; Silva, Goncalo; Semiao, Viriato; Martins, Jorge; Silverio, Vania; Pascoal-Faria, Paula; Duarte, Isabel; Alves, NunoThis study aims to assess the influence of root canal preparation, irrigation needle design and its placement depth in the irrigation flow of confluent canals during syringe irrigation. A mandibular molar presenting two confluent canals in its mesial root was sequentially prepared and scanned by micro-computed tomography after mechanical preparation up to ProTaper Next system sizes X2 (25/.06v), X3 (30/.07v) an...
Syringe irrigation in confluent canals: A sequential computational fluid dynami...
Rito Pereira, Mário; Silva, Goncalo; Semiao, Viriato; Martins, Jorge N. R.; Silverio, Vania; Pascoal-Faria, Paula; Duarte, Isabel; Alves, NunoThis study aims to assess the influence of root canal preparation, irrigation needle design and its placement depth in the irrigation flow of confluent canals during syringe irrigation. A mandibular molar presenting two confluent canals in its mesial root was sequentially prepared and scanned by micro-computed tomography after mechanical preparation up to ProTaper Next system sizes X2 (25/.06v), X3 (30/.07v) an...
Experimental validation of a computational fluid dynamics model using micro‐par...
Pereira, Mário; Silva, Gonçalo; Semiao, Viriato; Silverio, Vania; Martins, Jorge; Pascoal-Faria, Paula; Alves, Nuno; Dias, Juliana; Ginjeira, AntónioThis study aimed to experimentally validate a computational fluid dynamics (CFD) model, using micro-particle image velocimetry (micro-PIV) measurements of the irrigation flow velocity field developed in confluent canals during irrigation with a side-vented needle. A microchip with confluent canals, manufactured in polydimethylsiloxane was used in a micro-PIV analysis of the irrigation flow using a side-vented n...
Experimental validation of a computational fluid dynamics model using micro-par...
Pereira, Mário Rito; Silva, Gonçalo; Semião, Viriato; Silvério, Vânia; Martins, Jorge N.R.; Pascoal-Faria, Paula; Alves, Nuno; Dias, Juliana R.Aim: This study aimed to experimentally validate a computational fluid dynamics (CFD) model, using micro-particle image velocimetry (micro-PIV) measurements of the irrigation flow velocity field developed in confluent canals during irrigation with a side-vented needle. Methodology: A microchip with confluent canals, manufactured in polydimethylsiloxane was used in a micro-PIV analysis of the irrigation flow usi...
Prevalence of periapical lesions, root canal treatments and restorations in tee...
Baruwa, Abayomi O.; Martins, Jorge N. R.; Ginjeira, AntónioAim: To describe the prevalence of periapical lesions, root canal treatments and coronal restorations on teeth adjacent to either implant- or natural tooth-supported crowns using cone-beam computed tomography (CBCT) assessment compared to nonadjacent teeth. Methodology: A total of 1249 CBCT volumes were screened by five pre-calibrated observers in 11 health centres. A step-by-step screening protocol was impleme...
3D-printed multisampling holder for microcomputed tomography applied to life an...
Vasconcelos, Isabel; Franco, Margarida; Pereira, Mário; Duarte, Isabel; Ginjeira, António; Alves, NunoThe aim of this work was to design, fabricate, test and validate a 3D-printed multisampling holder for multi-analysis by microcomputed tomography. Different raw materials were scanned by microcomputed tomography. The raw material chosen was used to fabricate the holder by 3D printing. To validate the multisampling holder, five teeth were filled with a high density-material and scanned in two ways: a single and ...
3D-printed multisampling holder for microcomputed tomography applied to life an...
Vasconcelos, Isabel; Franco, Margarida; Pereira, Mário; Duarte, Isabel; Ginjeira, António; Alves, NunoThe aim of this work was to design, fabricate, test and validate a 3D-printed multisampling holder for multi-analysis by microcomputed tomography. Different raw materials were scanned by microcomputed tomography. The raw material chosen was used to fabricate the holder by 3D printing. To validate the multisampling holder, five teeth were filled with a high density-material and scanned in two ways: a single and ...
Evaluation of root canal filling with a bioceramic sealer using micro-computed ...
Vasconcelos, Isabel; Pereira, Mário Rito; Ginjeira, António; Franco, Margarida C.; Morouço, Pedro; Alves, NunoThis pilot study aims to define a protocol for optimizing the micro-computed tomography (micro-CT) settings to evaluate in the future research the root canal filling in oval shaped canals. Thirty distal canals of mandibular molars were used. After preparation of the canals, the roots were randomly divided into five groups. The canals were filled with two types of sealers (Endosequence BC Sealer or AH Plus) and ...
Evaluation of Root Canal Filling with a Bioceramic Sealer Using Micro-Computed ...
Vasconcelos, Isabel; Pereira, Mário Rito; Ginjeira, António; Franco, Margarida; Morouço, Pedro; Alves, NunoThis pilot study aims to define a protocol for optimizing the micro-computed tomography (micro-CT) settings to evaluate in the future research the root canal filling in oval shaped canals. Thirty distal canals of mandibular molars were used. After preparation of the canals, the roots were randomly divided into five groups. The canals were filled with two types of sealers (Endosequence BC Sealer or AH Plus) and ...