In Vivo Intracanal Temperature Evolution during Endodontic Treatment after the Injection of Room Temperature or Preheated Sodium Hypochlorite

Apical negative pressure irrigation versus syringe irrigation: a systematic review of cleaning and disinfection of the root canal system

“…) without simulating the naturally occurring heat dissipation by the periradicular vascular system (de Hemptinne et al . ). Increasing irrigant temperature is known to accelerate pulp tissue dissolution in vitro (Sirtes et al .…”

“…Differences in the total contact time could have influenced the chemical effect of irrigation. Moreover, one in vitro study used NaOCl at room temperature (29°C) in the syringe irrigation group and preheated NaOCl (50°C) in the negative pressure group (Neelakantan et al 2016) without simulating the naturally occurring heat dissipation by the periradicular vascular system (de Hemptinne et al 2015). Increasing irrigant temperature is known to accelerate pulp tissue dissolution in vitro (Sirtes et al 2005) and may have introduced bias in favour of the negative pressure system in Neelakantan et al (2016) as, clinically, the intracanal irrigant temperature is buffered rapidly (de Hemptinne et al 2015).…”

The Effect of Temperature on Cyclic Fatigue of Nickel-titanium Rotary Endodontic Instruments

“…Therefore, a heated NaOCl irrigant may be best suited as a final step in the irrigation protocol. In an in vivo study by de Hemptinne et al (10), when room temperature NaOCl solution was injected into a canal, the temperature increased to 30.9 C after only 10 seconds. The temperature of a heated solution decreased from 56.4 C to 45.4 C after 5 seconds and took a minute to decrease to 37 C. This rapid equilibration of temperature makes it especially important to test cyclic fatigue of instruments at body temperature instead of at room temperature, because irrigant at room temperature quickly equilibrates to body temperature when used in the root canal space.…”

Comparison of cyclic fatigue resistance and bending properties of two reciprocating nickel‐titanium glide path files

“…,b), but the intracanal temperature has been reported to be around 35°C (De Hemptinne et al . ). Recent studies reported that ambient temperature might drastically affect the cyclic fatigue resistance of NiTi files (de Vasconcelos et al .…”