Metallurgical Characterization of a New Nickel-Titanium Wire for Rotary Endodontic Instruments

Alapati, Satish B.; Brantley, William A.; Iijima, Masahiro; Clark, W.A.T.; Kovařík, Libor; Buie, Caesar; Liu, Jie; Johnson, William Ben

doi:10.1016/j.joen.2009.08.004

Cited by 182 publications

(158 citation statements)

References 19 publications

Supporting

Mentioning

146

Contrasting

Unclassified

Order By: Relevance

“…11 The benefits of this M-wire alloy include increased flexibility and improved resistance to cyclic fatigue of the instruments. 12,13 The Reciproc has an identical S-shaped cross-sectional design with sharp cutting edges and is used in a reciprocal motion that requires special automated devices. The reciprocating movement relieves stress on the instrument by special counterclockwise (cutting action) and clockwise (release of the instrument) movements and, therefore, reduces the risk of cyclic fatigue caused by tension and compression.…”

Section: Original Researchmentioning

confidence: 99%

Apical Extrusion of Debris and Irrigant using Novel Preparation Systems

Uzunoğlu¹,

Görduysus²

2014

The Journal of Contemporary Dental Practice

View full text Add to dashboard Cite

Aim:The aim of this in vitro study was to assess the amount of apically extruded debris and irrigant using Reciproc vs self-adjusting file (SAF) and to investigate the effect, if any, of gravitational force via mandibular and maxillary positioning of the teeth. Materials and methods:Forty human mandibular premolars were randomly assigned to four groups of 10 teeth each. The root canals were instrumented according to the manufacturers' instructions using the Reciproc and SAF. Sodium hypochlorite was used as the irrigant. The apically extruded debris was collected in pre-weighted glass vials using the Myers and Montgomery method, and teeth were placed in vials both in downward and upward positions. After drying, the mean weight of debris was assessed with a microbalance and statistically analyzed using two-way ANOVA with Bonferroni correction.Results: All instrumentation techniques and positions caused measurable apical extrusion of debris. A significant difference was observed according to position and instrument used (p < 0.05). The Reciproc extruded significantly more debris than SAF and vial downward position extruded significantly more debris than upward position (p < 0.05). Conclusion:Under the conditions of this study, all systems caused apical debris extrusion, especially in the downward position.Clinical significance: According to results of this study, the SAF was associated with less debris extrusion compared to the Reciproc in both mandibular and maxillary positions.

show abstract

Section: Original Researchmentioning

confidence: 99%

Apical Extrusion of Debris and Irrigant using Novel Preparation Systems

Uzunoğlu¹,

Görduysus²

2014

The Journal of Contemporary Dental Practice

View full text Add to dashboard Cite

show abstract

“…The first notable example was M-Wire, named for its stable martensitic structure [58]. Previous conventional rotary instruments were fabricated from superelastic wire blanks with evident transformable austenite detected by conventional DSC [59].…”

Section: Nickel-titanium Instrumentsmentioning

confidence: 99%

“…Two different batches of M-Wire (termed Type 1 and Type 2), with unknown differences in proprietary processing, were obtained for characterization by temperature-modulated DSC and Micro-X-ray diffraction [58]. Figure 7 shows the differences in the temperaturemodulated DSC plots for (a) conventional superelastic wire and (b) Type 1 M-Wire.…”

Section: Nickel-titanium Instrumentsmentioning

confidence: 99%

“…In contrast, the Micro-X-ray diffraction pattern from Type 2 M-Wire contained additional peaks for martensite and R-phase, along with peaks for austenite. However, when M-Wire was examined by transmission electron microscopy, a heavily deformed martensitic structure was found [58]. The explanation is that the DSC peaks only reveal NiTi phases that are capable of undergoing transformation and that (stable) heavily deformed martensitic NiTi only produces weak x-ray diffraction peaks.…”

Section: Nickel-titanium Instrumentsmentioning

confidence: 99%

See 1 more Smart Citation

Heat Treatment of Dental Alloys: A Review

Brantley¹,

Alapati²

2012

Metallurgy - Advances in Materials and Processes

View full text Add to dashboard Cite

“…Além dessa cinemática diferenciada, ambos são constituídos de liga de Ni-Ti com tratamento especial, conhecido como M-Wire, que resulta em melhorias do instrumento, como maior: flexibilidade, resistência à flexocompressão e à fratura por torsão, o que propicia uma instrumentação mais centralizada e, consequentemente, melhores resultados 17 . Sabe-se que o design da seção transversal desses instrumentos minimiza a área de contato entre a lima e a parede dentinária, o que, segundo a literatura, pode reduzir o risco de transporte do canal 18 . Portanto, instrumentos diferentes apresentam tendências diferentes para formatações e centralizações do preparo, devido às suas diferenças nas seções transversais.…”

Section: Introductionunclassified

Comparação entre as limas Reciproc e WaveOne na formatação e centralização do canal: uma revisão integrativa

Grossi¹,

Cunha²,

Lacerda

et al. 2017

Rev. da Fac. de Odontologia, UPF

View full text Add to dashboard Cite

IntroduçãoO maior desafio na endodontia é a formatação e a desinfecção eficaz dos canais radiculares, a remoção de bactérias e seus subprodutos, resíduos de necrose pulpar e ou dentina contaminada 1,2 , visto que a complexidade anatômica dos canais radiculares impõe limitações durante a construção do canal cirúrgico 2,4 . Tradicionalmente, o preparo químico-mecânico (PQM) é realizado com limas manuais por meio de diferentes técnicas. No entanto, esse preparo demanda um grande número de instrumentos e, ainda, pode provocar desvios, perfurações e grandes desgastes radiculares, devido à elevada rigidez de tais instrumentos, que são produzidos em liga de aço-inoxidável 5,6 .

show abstract

Metallurgical Characterization of a New Nickel-Titanium Wire for Rotary Endodontic Instruments

Cited by 182 publications

References 19 publications

Apical Extrusion of Debris and Irrigant using Novel Preparation Systems

Apical Extrusion of Debris and Irrigant using Novel Preparation Systems

Heat Treatment of Dental Alloys: A Review

Comparação entre as limas Reciproc e WaveOne na formatação e centralização do canal: uma revisão integrativa

Contact Info

Product

Resources

About