Article
Dentistry, Oral Surgery & Medicine
Cangul Keskin, Burcu Pirimoglu, Elif Ciftcioglu, Esma Dinger, Onur Komec, Ali Keles
Summary: This study assessed the outcome of shaping the mesial roots of mandibular first molars containing band-shaped isthmuses with an isthmus floor located at the apical third with Reciproc Blue and Rotate instruments in terms of canal transportation, canal aberrations and unprepared apical canals.
CLINICAL ORAL INVESTIGATIONS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Ana Paula da Silva Machado, Antonio Caetano Cancio Couto de Souza, Tamille Lima Goncalves, Andre Augusto Franco Marques, Lucas da Fonseca Roberti Garcia, Eduardo Antunes Bortoluzzi, Fredson Marcio Acris de Carvalho
Summary: The ultrasonic activation of sealer resulted in a higher percentage of remaining filling material on the root canal walls compared to no ultrasonic activation. There was a statistically significant difference in the apical third of the root canals between the two groups. However, there was no difference in retreatment time between the groups.
CLINICAL ORAL INVESTIGATIONS
(2021)
Article
Dentistry, Oral Surgery & Medicine
Isabelle L. L. Gomes, Flavio R. F. Alves, Marilia F. Marceliano-Alves, Stephanie B. Silveira, Julio Cezar N. Sousa, Jose Claudio Provenzano, Lucio Souza Goncalves
Summary: This study assessed the apical root canal transportation of Mtwo and Reciproc during the retreatment of severely curved canals. The results showed that both systems had similar apical transportation.
CLINICAL ORAL INVESTIGATIONS
(2023)
Article
Chemistry, Multidisciplinary
Andrea Spinelli, Fausto Zamparini, Alessio Buonavoglia, Paolo Pisi, Maria Giovanna Gandolfi, Carlo Prati
Summary: This study aimed to evaluate the root filling remnants after SRCTs of oval-shaped canals using X-rays and CBCT. The results showed that the remnants were mainly located in the middle thirds of the canals, and the GF group had a significantly higher volume of remnants compared to the SC group. ESEM-EDX analysis revealed that the remnants were composed of sealer and gutta-percha.
APPLIED SCIENCES-BASEL
(2022)
Article
Oncology
Mohammed Mustafa, Raid Almnea, Muhammed Ajmal, Hadi Mohammed Alamri, Abdulaziz Abdulwahed, Darshan Devang Divakar
Summary: The study investigated the efficacy of conventional root canal treatment with adjunctive photodynamic therapy against microbial biofilms within infected c-shaped root canals. Results showed that aPDT significantly reduced bacterial counts and improved the push-out bond strength of root canal filling material.
PHOTODIAGNOSIS AND PHOTODYNAMIC THERAPY
(2021)
Article
Dentistry, Oral Surgery & Medicine
Amanda Pelegrin Candemil, Jardel Francisco Mazzi-Chaves, Matheus Lima Oliveira, Guilherme Bovi Ambrosano, Karla Farias Vasconcelos, Ruben Pauwels, Reinhilde Jacobs, Manoel Damiao Sousa-Neto
Summary: This study aimed to assess the volume of filled C-shaped root canals using different CBCT and micro-CT scanners with nano-CT as a reference. The results showed that CBCT and micro-CT scans displayed significantly larger volume of root canal filling compared to nano-CT. The presence of endodontic filling material can lead to blooming artifacts in CBCT and micro-CT images.
CLINICAL ORAL INVESTIGATIONS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Nathalia Mancioppi Cerqueira, Victoria Gabriela Louzada, Yara Teresinha Correa Silva-Sousa, Walter Raucci-Neto, Graziela Bianchi Leoni
Summary: The study aimed to evaluate the effects of different shaping protocols on the root canal geometry and remaining dentin thickness of mandibular premolars with radicular grooves and two canals. XPS showed fewer changes in root canal geometry and greater remaining dentin thickness toward the RG in lingual canals compared to PTN.
CLINICAL ORAL INVESTIGATIONS
(2021)
Article
Multidisciplinary Sciences
Ahmed Jamleh, Mohannad Nassar, Abdulmohsen Alfadley, Azhar Alanazi, Hadeel Alotiabi, Maryam Alghilan, Khalid Alfouzan
Summary: This study compared the retreatment of oval canals filled with gutta-percha and different sealers using WaveOne Gold. The results showed that the retreatment time was shorter with TotalFill bioceramic sealer compared to AH Plus, while AH Plus had a higher maximum apical load. The maximum coronal load and torque values were similar between the two sealers. TotalFill bioceramic sealer achieved apical patency in all samples, while AH Plus only achieved it in 75% of the samples. The remaining obturating materials were comparable between the two sealers. WOG was effective in removing obturating materials from both sealers.
SCIENTIFIC REPORTS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Hayam Y. Hassan, Fahd M. Hadhoud, Ayman Mandorah
Summary: This study compared the retreatment efficiency of XP-endo Shaper and R-Endo files in curved root canals using ImageJ software. The results showed that XP-endo Shaper was significantly more effective than R-Endo in removing root canal filling materials in the coronal, middle, and apical segments.
Article
Dentistry, Oral Surgery & Medicine
Ane Poly, Fernando Marques, Luciana Moura Sassone, Bekir Karabucak
Summary: Comparing three recognized root canal filing systems, the study found that XP-endo Shaper removed more dentine and left less unprepared canal wall area compared to WaveOne Gold and TRUShape, with similar preparation times for oval-shaped root canals in extracted mandibular molars.
INTERNATIONAL ENDODONTIC JOURNAL
(2021)
Article
Multidisciplinary Sciences
Xueqin Yang, Ye Wang, Mengzhen Ji, Yanyao Li, Hao Wang, Tao Luo, Yuan Gao, Ling Zou
Summary: This study aimed to evaluate the removal effect of ProTaper Next system combined with manual nickel-titanium Hedstrom files or chloroform on filling materials of mandibular incisors by micro-CT. The results showed that PTN combined with MNiTiH could reduce the volume and surface area of residual filling materials, and PTN combined with MNiTiH had less apical extrusion compared to PTN combined with chloroform. However, neither of the two methods rendered root canals completely free from filling materials.
SCIENTIFIC REPORTS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Ana Raquel Lopes dos Santos Miranda, Joao Daniel Mendonca de Moura, Pedro Henrique Souza Calefi, Pablo Andres Amoroso Silva, Marilia Fagury Videira Marceliano-Alves, Ricardo Tadeu Lopes, Rodrigo Ricci Vivan, Patricia de Almeida Rodrigues
Summary: This study evaluated the influence of different designs of endodontic access cavities on the percentage of unprepared areas of canal walls and flexural fatigue of instruments in oval-shaped straight root canals. The results showed that there was no significant difference in unprepared areas or flexural fatigue resistance between the two groups.
INTERNATIONAL ENDODONTIC JOURNAL
(2022)
Article
Dentistry, Oral Surgery & Medicine
Ali Keles, Cangul Keskin, Elif Ciftcioglu, Gulcin Alak
Summary: In this study, micro-computed tomography was used to analyze band-shaped isthmuses in the apical third of the mesiobuccal roots of maxillary molars. The results showed that the frequency of band-shaped isthmuses was 13.5% with a length of up to 5.5 mm. There was no significant difference in the distance between the isthmus floor and apical foramina of the mesiobuccal canals.
CLINICAL ORAL INVESTIGATIONS
(2022)
Article
Dentistry, Oral Surgery & Medicine
Javier Caviedes-Bucheli, Nestor Rios-Osorio, Diana Usme, Cristian Jimenez, Adriana Pinzon, Jorge Rincon, Maria M. Azuero-Holguin, Alvaro Zubizarreta-Macho, Jose F. Gomez-Sosa, Hugo R. Munoz
Summary: The study aimed to evaluate changes in canal volume after root canal preparation using 3 different single-file techniques. Results showed that Reciproc-Blue had the highest increase in canal volume, followed by WaveOne-Gold, while XP-EndoShaper did not significantly increase canal volume during preparation.
Article
Dentistry, Oral Surgery & Medicine
Gustavo De-Deus, Gustavo O. Santos, Iara Zamboni Monteiro, Daniele M. Cavalcante, Marco Simoes-Carvalho, Felipe G. Belladonna, Emmanuel J. N. L. Silva, Erick M. Souza, Raphael Licha, Carla Zogheib, Marco A. Versiani
Summary: This study aimed to assess the interfacial adaptation of two root canal sealers (EndoSequence BC Sealer and AH Plus) to a conventional gutta-percha cone in oval-shaped canals. The results showed that although none of the specimens had a gap-free area along the entire GP-sealer interface, oval canals filled with AH Plus showed fewer gaps than the ones filled with EndoSequence BC Sealer.
INTERNATIONAL ENDODONTIC JOURNAL
(2022)
Article
Dentistry, Oral Surgery & Medicine
Burcu Gucyetmez Topal, Seda Falakaloglu, Emmanuel Silva, Mustafa Gundogar, Emre Iriboz
Summary: This study evaluated the shaping ability and instrumentation time of VDW.ROTATE (TM) and EdgeTaper Platinum (TM) during the preparation of resin-printed primary molars. The results showed that VDW.ROTATE (TM) had good shaping ability and shorter instrumentation time.
INTERNATIONAL JOURNAL OF PAEDIATRIC DENTISTRY
(2023)
Review
Dentistry, Oral Surgery & Medicine
Hongji Yan, Gustavo De Deus, Ida Marie Kristoffersen, Elisabeth Wiig, Janne Elin Reseland, Gaute F. Johnsen, Emmanuel J. N. L. Silva, Havard J. Haugen
Summary: The conventional treatment for irreversibly inflamed or necrotic teeth is root canal treatment or apexification. However, regenerative endodontics using the cell-homing technique shows promising results that can be translated into clinical practice. The cell homing technique is based on endogenous stem cells' capacity to regenerate tissue, and its success criteria have been defined by the American Association of Endodontists. This article provides an overview of vital pulp tissue and various strategies to promote regeneration of damaged pulp tissue, with a focus on the cell homing technique.
JOURNAL OF ENDODONTICS
(2023)
Article
Engineering, Electrical & Electronic
Barbara Mara Ferreira Goncalves, Elson Jose Silva, Renato Cardoso Mesquita
Summary: Traditional meshless methods have difficulties in approximating vector fields due to their use of scalar-based functions. This study introduces the vector nodal meshless method (VNMM), which constructs approximations using shape functions based on the H(curl) spaces and Nedelec's first type elements polynomial space. The authors demonstrate the interpolation capacity of the VNMM shape functions and compare it to the traditional edge finite element method (EFEM) in solving eigenvalue problems. The VNMM shows good performance in solving a nonlinear magnetostatic problem.
IEEE TRANSACTIONS ON MAGNETICS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Jorge N. R. Martins, Emmanuel Joao Nogueira Leal Silva, Duarte Marques, Natasha Ajuz, Mario Rito Pereira, Rui Pereira da Costa, Francisco Manuel Braz Fernandes, Marco Aurelio Versiani
Summary: This study compared the design, metallurgy, and mechanical performance of the ProTaper (PT) Ultimate system with similar instruments from the ProGlider, PT Gold, and PT Universal systems. The results showed that the PT Ultimate instruments had three distinct heat treatments and demonstrated lower torsional strength and higher flexibility compared to their counterparts.
INTERNATIONAL ENDODONTIC JOURNAL
(2023)
Article
Dentistry, Oral Surgery & Medicine
Gustavo S. Chaves, Julio A. Silva, Lucas R. Capeletti, Emmanuel J. N. L. Silva, Carlos Estrela, Daniel A. Decurcio
Summary: This study evaluated the precision of a simplified workflow using only preoperative CBCT scans to gain guided access to root canals of extracted mandibular molars. The influence of the presence of coronal restoration in the simplified workflow was also evaluated. The results showed that the simplified digital workflow using only CBCT examination allowed a high level of precision in obtaining access in extracted molars with and without coronal restoration.
JOURNAL OF ENDODONTICS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Emmanuel J. N. L. Silva, Bruno M. Crozeta, Jorge N. R. Martins, Thiago Moreira, Victor T. L. Vieira, Francisco Manuel Braz-Fernandes, Marco A. Versiani
Summary: This study compares the design, metallurgy, microhardness, bending resistance, and time to fracture of two ultrasonic tips, E1-Irrisonic and Irri Black. The results show that the diamondlike carbon treatment improves the hardness and bending resistance of Irri Black, leading to longer time to fracture under oscillatory motion.
JOURNAL OF ENDODONTICS
(2023)
Review
Dentistry, Oral Surgery & Medicine
Emmanuel J. N. L. Silva, Karem P. Pinto, Felipe G. Belladonna, Claudio M. A. Ferreira, Marco A. Versiani, Gustavo De-Deus
Summary: This systematic review and meta-analysis show that pulpotomy is a highly effective treatment for managing permanent teeth. The results indicate that the success rate of pulpotomy using ProRoot MTA is significantly higher than when using calcium hydroxide. However, the certainty of evidence supporting these findings is low, and there is a need for well-designed RCTs to assess the long-term outcomes of pulpotomy using newer bioceramic materials.
INTERNATIONAL ENDODONTIC JOURNAL
(2023)
Article
Dentistry, Oral Surgery & Medicine
Gustavo De-Deus, Viviany Cozer, Erick Miranda Souza, Emmanuel Joao Nogueira Leal Silva, Felipe Goncalves Belladonna, Marco Simoes-Carvalho, Marco Aurelio Versiani
Summary: This study compared the in vivo accuracy and precision of 3 electronic apex locators in determining the position of the major foramen using micro-CT technology. The results showed that Woodpex III and Root ZX II exhibited higher accuracy compared to Propex Pixi.
JOURNAL OF ENDODONTICS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Gustavo De-Deus, Evaldo A. Rodrigues, Jong-Ki Lee, J. Kim, Emmanuel J. N. L. Silva, Felipe G. Belladonna, Marco Simoes-Carvalho, Erick M. Souza, Marco A. Versiani
Summary: This study evaluated the effects of root canal enlargement on the danger zone (DZ) of mandibular molars. Micro-computed tomography scans were used to examine 30 mesial roots of mandibular first molars before and after different preparation steps. The results showed a significant reduction in DZ thickness after preparations, as well as a shift in DZ position towards the coronal direction. The length of the canal also correlated with the root level of the DZ.
JOURNAL OF ENDODONTICS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Laise Pena Braga Monteiro, Sergio Emilio Miranda de Sousa, Roberta Fonseca de Castro, Emmanuel Joao Nogueira Leal da Silva, Juliana Melo da Silva Brandao
Summary: This study aimed to evaluate the effectiveness of passive ultrasonic irrigation (PUI) compared to mechanical activation with Easy Clean in the removal of organic tissue from simulated areas of internal root resorption. The results showed that Easy Clean was more effective than PUI in removing organic tissue from simulated internal resorption.
Article
Dentistry, Oral Surgery & Medicine
Ana Flavia Almeida Barbosa, Carolina Oliveira de Lima, Bernardo Rempto Antunes, Luciana Moura Sassone, Marco Aurelio Versiani, Emmanuel Joao Nogueira Leal da Silva
Summary: This study evaluated the preparation status, dentine removal volume, and dentine thickness of buccal canals in 22 maxillary molars with and without the MB2 using instruments with the same tip size but different tapers. Micro-CT scans were performed after each instrument. The results showed that there was an increase in dentine removal volume and a decrease in unprepared areas and dentine thickness after each treatment step, with higher reduction in dentine thickness in the MB2 canal compared to the mesiobuccal and distobuccal canals. Knowledge of pre-operative dimensions and dentine thickness is crucial to avoid excessive dentine removal.
AUSTRALIAN ENDODONTIC JOURNAL
(2023)
Article
Dentistry, Oral Surgery & Medicine
Gustavo De-Deus, Fabio Nakao Arashiro, Erick Miranda Souza, Emmanuel Joao Nogueira Leal Silva, Tiago de Mello Guimaraes, Ana Carolina de Carvalho Maciel, Diogo da Silva Oliveira, Felipe Goncalves Belladonna, Ricardo Tadeu Lopes, Marco Aurelio Versiani
Summary: This study assessed the impact of long-term storage conditions (medium and time) on the development of experimental dentinal microcracks using micro-computed tomography. Dry conditions significantly contributed to the formation of new defects at all time points.
AUSTRALIAN ENDODONTIC JOURNAL
(2023)
Article
Dentistry, Oral Surgery & Medicine
Jorge N. R. Martins, Emmanuel Joao Nogueira Leal Silva, Duarte Marques, Ricardo Pinto, Helena Francisco, Natasha Ajuz, Mario Rito Pereira, Francisco Manuel Braz Fernandes, Marco Aurelio Versiani
Summary: By comparing the design, metallurgy, and mechanical properties of different heat-treated reciprocating instruments, it was found that there were variations in the phase transformation temperatures and torsional and bending test outcomes. However, there were no significant differences in the irrigation flow pattern among the different groups.
INTERNATIONAL ENDODONTIC JOURNAL
(2023)
Article
Dentistry, Oral Surgery & Medicine
Emmanuel J. N. L. Silva, Murilo P. Alcalde, Jorge N. R. Martins, Victor T. L. Vieira, Rodrigo R. Vivan, Marco A. H. Duarte, Felipe G. Belladonna, Francisco Manuel Braz-Fernandes, Marco A. Versiani
Summary: This study aims to assess the influence of a flat-side design on the geometry, metallurgy, mechanical performance, and shaping ability of a novel nickel-titanium rotary instrument. The results showed that the flat-side instrument demonstrated enhanced cutting ability compared to its nonflat counterpart, but inferior performance in terms of time, rotation, and maximum torque to fracture, along with distinct phase transformation temperatures. No significant differences were observed in other aspects between flat and nonflat instruments.
INTERNATIONAL ENDODONTIC JOURNAL
(2023)
Article
Dentistry, Oral Surgery & Medicine
Felipe Goncalves Belladonna, Tiago de Mello Guimaraes, Emmanuel Joao Nogueira Leal Silva, Esio de Oliveira Vieira, Jong-Ki Lee, Evaldo de Almeida Rodrigues, Erick Miranda Souza, Marco Aurelio Versiani
Summary: This study assessed the transportation of root canals with 6 different preparation systems. It found that the choice of preparation system and the location within the root canal had significant effects on transportation. Twisted File Adaptive showed the highest transportation, while XP-endo Shaper had the lowest. Transportation generally occurred towards the inner aspect of the canal at the coronal third and towards the outer aspect at the middle and apical thirds.
JOURNAL OF ENDODONTICS
(2023)
