Dentinal Crack Formation during Root Canal Preparations by the Twisted File Adaptive, ProTaper Next, ProTaper Universal, and WaveOne Instruments

Effect of different nickel–titanium rotary files on dentinal crack formation during root canal preparation in primary molars: a laboratory study

“…These similar design characteristics are believed to influence the efficiencies in causing dentin cracks. In parallel with our study results, Karataş et al [30] reported that there was no statistically singificant difference between PTN and WO files in terms of creating dentin cracks on mandibular incisor teeth.…”

The incidence of dentinal cracks during root canal preparations with reciprocating single-file and rotary-file systems: A meta-analysis

“…Of those studies, 12 were excluded after we examined the full text because they did not conform to the eligibility criteria of this review, as shown in Table 2 20,30-40) . Finally, the 8 studies that met the inclusion criteria were included [21][22][23][24][25][26][27][28] . The process involved in the study selection is shown in Fig.…”

“…Several researchers reported that fullsequence rotary-file instruments induce fewer dentinal cracks than reciprocating single-file systems 21,22) . However, others stated that there was no significant difference in dentinal crack formation between these two systems [23][24][25] . The results of some experiments even indicated that full-sequence rotary-file instruments were associated with more dentinal defects than reciprocating single-file systems [26][27][28] .…”

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

“…Assim, com os avanços nos motores, os fabricantes iniciaram modificações na estrutura das limas, na composição da liga de Ni-Ti e na técnica de fabricação, a fim de melhorar o desempenho dos instrumentos e minimizar as iatrogenias durante o PQM 31 . Alguns estudos 32,33 mostraram que a resistência à fratura cíclica dos instrumentos aumenta quando utilizados no movimento reciprocante, além disso, observou-se que o uso de limas reciprocantes proporciona preparos mais conservadores quando comparados aos preparos com o sistema rotatório. Tal fato pode ser justificado pela utilização de apenas um instrumento para conformação do canal radicular com o sistema reciprocante, enquanto, no sistema rotatório, utiliza-se uma sequência de limas 34,38 .…”