Effect of two active irrigation systems on the temperature of NaOCL
Research type
Research Study
Full title
The effect of Sonic (EndoActivator®) and Ultrasonic (Irrisafe®) active irrigation on temperature of Sodium Hypochlorite during root canal treatment, a research on extracted human teeth.
IRAS ID
223954
Contact name
Michael Horrocks
Contact email
Sponsor organisation
University of Chester
Duration of Study in the UK
0 years, 1 months, 31 days
Research summary
Endodontic treatment aims to clean the root canal from infection. The use of irrigation solutions was suggested to be used as early as 1859, using the irrigation is to ensure the elimination and removal of microorganisms that can colonise the root canal. The most effective and widely used irrigation solution is Sodium Hypochlorite. Many methods have been developed to ensure the efficient delivery of the irrigation solution to all the root canal system. These systems are divided into manual and machine-powered devices, the latter can also be divided into sonic, ultrasonic. This study will compare two systems for enhancing endodontic irrigation, Endoactivator®(sonic) and Irrisafe®(ultrasonic), measuring the temperature generated within the tooth. Increasing the temperature of Sodium Hypochlorite has been shown to increase the efficiency of the solution in the elimination of microorganisms, but damage to periodontal ligament cells on the surface of the root may occur, if the external root temperature rises above 47ºC. The study will be conducted on extracted human upper anterior teeth, which will be obtained from patients attending the dental practice that the researcher is working in. Teeth are only ever extracted for clinical reasons and patients may be either the researcher’s own patients or the patients of other dentists in the same practice. Informed consent will be obtained following a discussion about all the available treatment options and prior to extraction.The root canals will be prepared in an identical manner using the same Endodontic filing system and prepared by the same operator, following manufacturer’s guidelines.Thermocouples will then be inserted in the prepared teeth at three different levels for each tooth, which will be inserted in a water bath set at 37 degrees Celsius to control the temperature. The results will be recorded, and statistically analysed in order to determine temperature changes.
REC name
North West - Greater Manchester West Research Ethics Committee
REC reference
17/NW/0641
Date of REC Opinion
3 Nov 2017
REC opinion
Favourable Opinion