Article
Dentistry, Oral Surgery & Medicine
Thamyres M. Monteiro, Victor O. Cortes-Cid, Marilia F. V. Marceliano-Alves, Andrea F. Campello, Luan F. Bastos, Ricardo T. Lopes, Jose F. Siqueira, Flavio R. F. Alves
Summary: This study compared the intracanal removal of filling material and the frequency and volume of extruded material after retreatment with HyFlex or Reciproc instruments. The results showed a high frequency of filling material extrusion after retreatment with both systems in a cadaver model, with no significant difference between them. Both protocols had similar efficacy in filling material removal procedures, although none completely cleaned the canals.
INTERNATIONAL ENDODONTIC JOURNAL
(2023)
Article
Dentistry, Oral Surgery & Medicine
Gabiana Rodrigues Freitas, Thais Marchand Ribeiro, Fabiana Soares Grecca Vilella, Tiago Andre Fontoura de Melo
Summary: This study evaluated the influence of endodontic cavity access into molars on the chemomechanical preparation of curved root canals. The results showed that there was no significant difference in the transport and centralization of endodontic instruments between conventional and minimally invasive access types. Therefore, the type of cavity access did not affect the preparation of curved root canals with 0.25 and 0.04 taper instruments.
CLINICAL ORAL INVESTIGATIONS
(2021)
Article
Dentistry, Oral Surgery & Medicine
Arunima Aggarwal, Ruchika Roongta Nawal, Seema Yadav, Sangeeta Talwar, Sriram Kunnoth, Puneet Mahajan
Summary: During root canal shaping, rotary instruments resulted in a higher number of dentinal microcracks compared to reciprocating and adaptive instruments. The working length did not significantly influence the formation of dentinal microcracks.
JOURNAL OF ENDODONTICS
(2021)
Review
Chemistry, Physical
Sang Won Kwak, Ya Shen, He Liu, Hyeon-Cheol Kim, Markus Haapasalo
Summary: Understanding the characteristics of nickel-titanium files is crucial for dentists due to their popularity in root canal therapy. The torque required to rotate the files is considered a parameter for stress generation, and understanding the conditions that may cause instrument fractures is important. The stress generated during root canal shaping can lead to microcracks in the instruments and dentinal wall, emphasizing the need to prevent fractures. Various experimental approaches have been used to measure this stress, and this review focuses on the stress generated under different experimental conditions and the factors related to torque generation.
Article
Medicine, General & Internal
Vicente Faus-Llacer, Dalia Pulido Ouardi, Ignacio Faus-Matoses, Celia Ruiz-Sanchez, Alvaro Zubizarreta-Macho, Anabella Maria Reyes Ortiz, Vicente Faus-Matoses
Summary: This study evaluated and compared the dentin removal capacity of Endogal Kids and Reciproc Blue NiTi alloy endodontic reciprocating systems for root canal treatments in primary second molar teeth. The results showed that both systems had similar dentin removal capacity, except for the coronal root canal third where the Reciproc Blue NiTi system preserved more root canal dentin tissue.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Medicine, General & Internal
Changjian Li, Le Liu, Yanfeng Li, Xin Wang, Haiyun Liu, Jiaxin Bao, Jing Wang, Jiadong Fan
Summary: The study found that only 5% sodium hypochlorite can affect the diameter of rotary nickel-titanium instruments, and other disinfectants do not reduce the instrument's fracture resistance. The breaking positions of instruments mainly occurred at the bending segment of the root canal, with a higher breaking frequency closer to the apical foramen.
Review
Dentistry, Oral Surgery & Medicine
Yuhong Liang, Lin Yue
Summary: This review introduces the terms and concepts of engine-driven nickel-titanium (NiTi) endodontic files, as well as the improvements and advancements in different generations of these instruments. Continuous advancements have resulted in better shaping efficiency and resistance in NiTi systems. In clinical practice, the appropriate system should be chosen based on root canal anatomy, instrument characteristics, and operator experience.
INTERNATIONAL JOURNAL OF ORAL SCIENCE
(2022)
Article
Chemistry, Physical
Mohammad I. Al-Obaida, Abdulmohsen A. Alzuwayer, Saqer S. Alanazi, Abdulrahman A. Balhaddad
Summary: This study aimed to determine the cyclic flexural fatigue resistance of commonly used rotary endodontic files, and the results showed that WaveOne had the highest cyclic flexural fatigue resistance while Unicone had the lowest.
Review
Chemistry, Multidisciplinary
Myint Thu, Arata Ebihara, Sherif Adel, Takashi Okiji
Summary: In this review, 52 out of 4096 studies met the inclusion criteria, identifying 26 factors that influence torque or force generation during nickel-titanium rotary root canal instrumentation. Factors associated with higher torque or force generation were found to be supported by multiple studies with consistent results, while some factors were found to be interrelated, obscuring the independent effect of each factor and lacking sufficient scientific evidence supporting the influence of some factors.
APPLIED SCIENCES-BASEL
(2021)
Article
Dentistry, Oral Surgery & Medicine
J. N. R. Martins, E. J. N. L. Silva, D. Marques, F. Belladonna, M. Simoes-Carvalho, V. T. L. Vieira, H. S. Antunes, F. M. B. Fernandes, M. A. Versiani
Summary: This study compared six reciprocating instruments in terms of their geometric design, metallurgical characteristics, mechanical behavior, and ability to prepare root canals. While the instruments had similarities in metal composition and unprepared canal area, they showed differences in phase transformation temperatures and geometric design. The study found that there were variations in the overall geometric design, phase transformation temperatures, and mechanical resistance parameters among the instruments.
INTERNATIONAL ENDODONTIC JOURNAL
(2021)
Article
Dentistry, Oral Surgery & Medicine
Jorge N. R. Martins, Emmanuel J. N. L. Silva, Abayomi O. Baruwa, Rui Pereira da Costa, Francisco M. Braz M. Fernandes, Marco A. Versiani
Summary: This study compared two flat-side single-file rotary instruments with three single-file reciprocating systems through a multimethod assessment. The results showed that the flat-side rotary instruments underperformed the reciprocating instruments in terms of cyclic fatigue, maximum torque, angle of rotation, maximum buckling strength, and flexibility. Manufacturing inconsistencies were also observed in some of the flat-side instruments.
INTERNATIONAL ENDODONTIC JOURNAL
(2023)
Article
Chemistry, Physical
Sebastian Buerklein, David Donnermeyer, Tim Julian Hentschel, Edgar Schaefer
Summary: This study evaluated the performance of five rotary nickel-titanium instruments in preparing curved root canals. The results showed that all instruments performed well, with Jizai instruments exhibiting the best shaping ability and minimal adjustments to canal curvature.
Article
Dentistry, Oral Surgery & Medicine
Isabela G. Guedes, Renata C. Rodrigues, Marilia F. Marceliano-Alves, Flavio R. F. Alves, Isabela N. Rocas, Jose F. Siqueira
Summary: This study compared the shaping ability of four new reciprocating and rotary nickel-titanium instruments, with triangular or S-shaped cross-section, in the mesial canals of mandibular molars. The results showed that they performed equally in shaping the canals.
INTERNATIONAL ENDODONTIC JOURNAL
(2022)
Article
Dentistry, Oral Surgery & Medicine
Maryam Zanjir, Amir Azarpazhooh, Yasaman Hosseini, Elaine Cardoso, Carilynne Yarascavitch, Prakesh S. Shah, Joanna Sale
Summary: This paper explores the expectations and reported outcomes of patients undergoing nonsurgical root canal treatment (NS-RCT), nonsurgical root canal retreatment (NS-ReTx), and endodontic microsurgery (EMS). The study finds that patients value outcomes such as tooth survival, resolution of symptoms, aesthetics, and radiographic healing. Process-related factors are as important as treatment outcomes for patients. Effective communication and education during treatment can increase patient satisfaction and reduce stress. Dissatisfaction is linked to the lack of a comprehensive treatment and follow-up plan. Thorough planning ensures that patients are fully informed and have a structured approach to achieve their desired outcomes.
JOURNAL OF ENDODONTICS
(2023)
Article
Oncology
Fan Cheng, Yaqin Zhu
Summary: None of the experimental methods were able to completely remove the root-filling material. Although the Nd:YAP laser could assist, the process was time-consuming and the efficiency of endodontic retreatment was limited. The use of Mtwo R + H or Reciproc files was the most efficient in this study.
ANNALS OF TRANSLATIONAL MEDICINE
(2021)
Article
Dentistry, Oral Surgery & Medicine
Juan Pacheco-Yanes, Jose C. Provenzano, Marilia F. Marceliano-Alves, Isbelia Gazzaneo, Alejandro R. Perez, Lucio S. Goncalves, Jose F. Siqueira
CLINICAL ORAL INVESTIGATIONS
(2020)
Article
Dentistry, Oral Surgery & Medicine
Amanda Carneiro Aragao, Andrea Vaz Braga Pintor, Marilia Marceliano-Alves, Laura Guimaraes Primo, Aline Saddock de Sa Silva, Ricardo Tadeu Lopes, Aline de Almeida Neves
INTERNATIONAL JOURNAL OF PAEDIATRIC DENTISTRY
(2020)
Article
Dentistry, Oral Surgery & Medicine
Flavio R. F. Alves, Mayra C. C. Dias, Marina Gabriela C. B. Mansa, Marivaldo D. Machado
JOURNAL OF ENDODONTICS
(2020)
Article
Dentistry, Oral Surgery & Medicine
Jose F. Jr Jr Siqueira, Henrique S. Antunes, Alejandro R. Perez, Flavio R. F. Alves, Ibrahimu Mdala, Emmanuel J. N. L. Silva, Felipe G. Belladonna, Isabela N. Rocas
JOURNAL OF ENDODONTICS
(2020)
Article
Dentistry, Oral Surgery & Medicine
Alejandro R. Perez, Domenico Ricucci, Gaya C. S. Vieira, Jose C. Provenzano, Flavio R. F. Alves, Marilia F. Marceliano-Alves, Isabela N. Rocas, Jose F. Siqueira
JOURNAL OF ENDODONTICS
(2020)
Article
Dentistry, Oral Surgery & Medicine
Sandro J. O. Tavares, Cinthya C. Gomes, Marilia F. Marceliano-Alves, Ludmila C. Guimaraes, Jose C. Provenzano, Pablo Amoroso-Silva, Andre G. Machado, Jose F. Jr Jr Siqueira, Flavio R. F. Alves
Summary: Both XP-Endo Finisher R and R1-Clearsonic showed significant reduction in filling material remnants in both full canal and apical segment. XP-Endo Finisher R performed better in overall canal length.
AUSTRALIAN ENDODONTIC JOURNAL
(2021)
Article
Dentistry, Oral Surgery & Medicine
Isabelle Luise Lima Gomes, Flavio Rodrigues Ferreira Alves, Marilia F. Marceliano-Alves, Stephanie B. Silveira, Jose Claudio Provenzano, Lucio Souza Goncalves
Summary: This study evaluated the apical transportation using Mani GPR or HyFlex NT in the retreatment of curved root canals. Mani GPR showed greater horizontal transportation at 1 mm short of the apex and higher variation of the canal curvature angle compared with HyFlex NT.
AUSTRALIAN ENDODONTIC JOURNAL
(2021)
Article
Dentistry, Oral Surgery & Medicine
Suelen Recepute Xavier, Carolina Oliveira de Lima, Marilia Fagury Videira Marceliano-Alves, Mariane Floriano Lopes Santos Lacerda, Ricardo Tadeu Lopes, Celso Neiva Campos
Summary: The study aimed to evaluate the shaping ability of XP-endo Shaper and Mtwo systems in oval-shaped canals preparation using micro-CT. XP-endo Shaper system was more effective in the instrumentation of oval-shaped canals compared to Mtwo system, resulting in greater volume increases and lower percentage of unprepared canal walls in the apical region. No statistical difference was observed regarding apical transportation and centring ability.
AUSTRALIAN ENDODONTIC JOURNAL
(2021)
Article
Instruments & Instrumentation
Andrea F. Campello, Marilia F. Marceliano-Alves, Jose C. Provenzano, Simone C. Loyola, Jose F. Siqueira, Andre G. Machado, Andre L. Machado, Ricardo T. Lopes, Mauricio M. Paiva, Flavio R. F. Alves
Summary: The study found that the accuracy of detecting dentinal cracks was moderate for the 10dry, 10moist, and OMTrans groups, poor for the OM group, and very poor for the 17dry and 17moist groups. The thickness of the dentin crack significantly influenced its detection.
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
Marilia F. Marceliano-Alves, Thais Machado Carvalho de Coutinho, Vivian Ronquete, Paula Avelar Ribeiro Goulard, Larissa Moraes Gabriel do Nascimento, Antoine de Almeida Dos Santos, Ricardo Tadeu Lopes, Renata Ximenes Lins, da Limoeiro, Wayne Martins Nascimento, Pablo Andres Amoroso-Silva
Summary: This study evaluated the internal morphology of 100 distal roots of mandibular first molars using micro-CT. The results showed that the internal morphology of the distal roots is complex and varied, with Vertucci type I and V being the most common. The average root length was 16.06 mm and the most common cross-section shape 1 mm from the apex was oval and circular. The size and shape of the foramina varied, and root isthmus was found in 47% of the samples.
AUSTRALIAN ENDODONTIC JOURNAL
(2023)
Article
Dentistry, Oral Surgery & Medicine
Isabela G. Guedes, Renata C. Rodrigues, Marilia F. Marceliano-Alves, Flavio R. F. Alves, Isabela N. Rocas, Jose F. Siqueira
Summary: This study compared the shaping ability of four new reciprocating and rotary nickel-titanium instruments, with triangular or S-shaped cross-section, in the mesial canals of mandibular molars. The results showed that they performed equally in shaping the canals.
INTERNATIONAL ENDODONTIC JOURNAL
(2022)
Article
Dentistry, Oral Surgery & Medicine
Thamyres M. Monteiro, Victor O. Cortes-Cid, Marilia F. V. Marceliano-Alves, Andrea F. Campello, Luan F. Bastos, Ricardo T. Lopes, Jose F. Siqueira, Flavio R. F. Alves
Summary: This study compared the intracanal removal of filling material and the frequency and volume of extruded material after retreatment with HyFlex or Reciproc instruments. The results showed a high frequency of filling material extrusion after retreatment with both systems in a cadaver model, with no significant difference between them. Both protocols had similar efficacy in filling material removal procedures, although none completely cleaned the canals.
INTERNATIONAL ENDODONTIC JOURNAL
(2023)
Article
Dentistry, Oral Surgery & Medicine
Emily Feitosa Rego, Renata Perez Vianna Silva, Aline Saddock de Sa Silva, Marilia Fagury Videira Marceliano-Alves, Ricardo Tadeu Lopes, Laura Guimaraes Primo, Aline de Almeida Neves
Summary: This study compared the biomechanical outcomes and time required for instrumentation of different endodontic systems. The results showed that rotary systems reduced instrumentation time, while SBF and XPC resulted in more conservative instrumentation, with less debris accumulation and non-instrumented areas.
INTERNATIONAL JOURNAL OF PAEDIATRIC DENTISTRY
(2023)