Rui Pereira da Costa

Root Canal Filling of Teeth with Open Apex Using Different Techniques, Low-Temperature Gutta-Percha Points, and Bioceramic Sealers

Rui Pereira da Costa, Igor Bassi Ferreira Petean, Guilherme Nilson Alves dos Santos, Alice Corrêa Silva‐Sousa et autres

To evaluate the impact of different root canal filling techniques on the push-out resistance to dislodgment of the filling material to dentin, the quality of the filling interface, and root temperature variation in teeth with open apex. Forty-eight human maxillary canines with …

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A Comparative Analysis of ProTaper Ultimate and Five Multifile Systems: Design, Metallurgy, and Mechanical Performance

Jorge Martins, Emmanuel João Nogueira Leal Silva, Víctor Talarico Leal Vieira, Rui Pereira da Costa et autres

The present research compared the design, metallurgical properties, and mechanical characteristics of the ProTaper Ultimate instruments with five multifile systems. A total of 469 new nickel-titanium rotary finishing instruments, all 25 mm in length but varying in size, taper, and metal alloy …

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Impact of low-fusion gutta-percha cones used in variations of the continuous wave condensation technique with filling sealers based on bioceramic compounds on the quality of root canal filling

Rui Pereira da Costa, Guilherme Nilson Alves dos Santos, Igor Bassi Ferreira Petean, Alice Corrêa Silva‐Sousa et autres

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Diagnostic value of cone beam computed tomography for root canal morphology assessment – a micro-CT based comparison

Mariana Domingos Pires, Jorge Martins, Mário Rito Pereira, Isabel Vasconcelos et autres

OBJECTIVES: The aim of this study was to assess cone beam computed tomography (CBCT) as a root canal anatomy diagnostic tool by comparison with micro-CT gold-standard. MATERIALS AND METHODS: 216 two-rooted mandibular molars were first scanned in a CBCT device (200 μm …

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Comparative analysis of reciprocating and flat‐side heat‐treated rotary single‐file systems: Design, metallurgical characteristics, and mechanical performance

Jorge Martins, Emmanuel João Nogueira Leal Silva, Abayomi Baruwa, Rui Pereira da Costa et autres

AIM: To compare two flat-side single-file rotary instruments with three single-file reciprocating systems through a multimethod assessment. METHODOLOGY: A total of 290 new NiTi single-file rotary (AF F One Blue 25/0.06 and Platinum V.EU 25/0.06) and reciprocating (One Files Blue R25, Reciproc …

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Characterization of the file‐specific heat‐treated ProTaper Ultimate rotary system

Jorge Martins, Emmanuel João Nogueira Leal Silva, Duarte Marques, Natasha C. Ajuz et autres

AIM: To compare design, metallurgy and mechanical performance of the ProTaper (PT) Ultimate system with instruments of similar dimensions from the ProGlider, PT Gold and PT Universal systems. METHODOLOGY: New PT Ultimate instruments (n = 248) were compared with instruments of similar …

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Management of periapical lesion with persistent exsudate

Sérgio André Quaresma, Rui Pereira da Costa, Beatriz Batalha, Maria Carlos Quaresma et autres

This case describes the treatment and follow-up of a mandibular molar in an 18-year-old female with a periapical cyst. Thus, it becomes important to know which options should we take when faced with a clinical situation that we cannot resolve through conventional …

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Root Canal Treatment of Severely Calcified Teeth with Use of Cone-Beam Computed Tomography as an Intraoperative Resource.

Sérgio André Quaresma, Rui Pereira da Costa, Igor Bassi Ferreira Petean, Alice Corrêa Silva‐Sousa et autres

The aim of this study was to describe a new strategy, consisting of the use of cone-beam computed tomography (CBCT) in the planning and intraoperative stages of root canal treatment (RCT), associated with the use of radiopaque gutta-percha markers, as an auxiliary …

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Comparison of five rotary systems regarding design, metallurgy, mechanical performance, and canal preparation—a multimethod research

Jorge Martins, Emmanuel João Nogueira Leal Silva, Duarte Marques, Felipe Gonçalves Belladonna et autres

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Management of a perforating internal root resorption using mineral trioxide aggregate: a case report with 5‐year follow‐up

Rui Pereira da Costa, Sérgio André Quaresma, Fabiane Carneiro Lopes‐Olhê, Rafael Verardino de Camargo et autres

Internal root resorption is characterised by progressive loss of tooth substance initiating at the root canal wall as a result of clastic activity. This report describes a case of a perforating internal root resorption on a maxillary central incisor in a 25-year-old …

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Abordagem e tratamento de reabsorção interna perfurante com destruição dentária extrema

Rui Pereira da Costa, Sérgio André Lopes Quaresma, Fabiane Carneiro Lopes‐Olhê, Rafael Verardino de Camargo et autres

Endodontic management of dens invaginatus Type IIIb: Case series

Jorge Martins, Rui Pereira da Costa, Craig S. Anderson, Sérgio André Quaresma et autres

Dens invaginatus may be seen as a developmental malformation. It is characterized by an invagination of the enamel and dentin, creating a lumen inside the affected tooth, which may extend as deep as the apical foramen. Oehlers Type IIIb is considered the …

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