NCT03783520

Brief Summary

Irrigation with sodium hypochlorite (NaOCl) during chemo-mechanic preparation for effective root canal disinfection is a standard protocol in root canal treatment. NaOCl is an alkali irrigant with pH 11.0 -12.0. Nearby its high antimicrobial efficacy, cytotoxic features make it questionable when it comes contact with periradicular tissues. Several irrigation materials were investigated less cytotoxic, more or equal antimicrobial to avoid such adverse effects. Calcium hypochlorite, chlorhexidine, chitosan and antibiotics are some of the chemicals tested. Laser is not a chemical but its action may show antibacterial effect. Studies showed that Er,Cr:YSGG laser is strongly antibacterial against Enterococcus faecalis biofilm. This antibacterial effect were frequently obtained with laser activated irrigation (LAI) or photon-induced photoacoustic streaming (PIPS) in the literature. The aim of this study was to evaluate whether disinfection procedure with laser provides more or less benefit in terms of postoperative pain when compared with the conventional NaOCl irrigation method.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
170

participants targeted

Target at P75+ for not_applicable postoperative-pain

Timeline
Completed

Started Nov 2014

Typical duration for not_applicable postoperative-pain

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2014

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2015

Completed
3.1 years until next milestone

First Submitted

Initial submission to the registry

December 19, 2018

Completed
2 days until next milestone

First Posted

Study publicly available on registry

December 21, 2018

Completed
Last Updated

July 21, 2020

Status Verified

December 1, 2018

Enrollment Period

1.1 years

First QC Date

December 19, 2018

Last Update Submit

July 17, 2020

Conditions

Keywords

root canal treatmentintracanal irrigationLaser

Outcome Measures

Primary Outcomes (1)

  • Evaluation of Postoperative pain

    Postoperative pain evaluation with verbal analog scale after root canal treatment. Patients signed as 0: no pain; 1: mild pain, analgesic not required; 2: moderate pain, analgesic required; 3: severe pain, analgesic has no effect in relieving the pain. The data were collected and statistically analysed using by the numerical data. In this study, "0" and "1" scores are considered as better outcome. Patients who signed these scores didn't need to use analgesics. The worst outcome is considered as the patients signed "3". Each scale range for each time interval evaluated as count of patient and presented as percentage. Scale ranges are not summed.

    0-24 hours after root canal treatment

Study Arms (2)

Er,Cr:YSGG Laser

EXPERIMENTAL

In laser group, each root canal was dried with paper points and then Er,Cr:YSGG (Biolase™, Waterlase™, San Clemente, CA, USA) was used for intracanal disinfection with the following parameters: panel output power of 0,75 W, pulse frequency of 20 Hz, and 1% water pressure to 10% air pressure ratio laser with RFT3 tips (415 µm diameter radial firing tip RFT3 Endolase, Biolase Technology, Inc; calibration factor of 0.85). The fiber was placed at 1mm short of the WL. Irradiation was delivered along the entire length of the root canal with helicoradial movements, 1mm per seconds in speed. This procedure was repeated three times and kept for 20 seconds between each irradiation.

Device: Er,Cr:YSGG Laser

Sodium hypochlorite

ACTIVE COMPARATOR

In control group, each canal were irrigated with 6 ml of 2,5% NaOCl. For the final irrigation, 5 ml of sterile saline were used. During irrigation, needle was inserted 1 mm short of the WL.

Other: Sodium hypochlorite

Interventions

Er,Cr:YSGG Laser is used for disinfection of the root canals.

Er,Cr:YSGG Laser

Sodium hypochlorite is used for disinfection of the root canals

Sodium hypochlorite

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • )Single-rooted, maxillary and mandibular incisors, canines or premolars that were asymptomatic (no preoperative pain, swelling or acute endodontic or periodontal abscess). 2)Nonvital pulps and did not respond to cold testing.
  • )People had no systemic diseases or allergies to local anesthetic agents . 4)People had not received any endodontic treatment previously. 5)People had no radiographic evidence of periapical bone loss.

You may not qualify if:

  • Pregnant and breastfeeding women
  • Patients taking analgesic, anti-inflammatory, or antibiotic medications during seven days prior to beginning of treatment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (4)

  • Arias A, de la Macorra JC, Hidalgo JJ, Azabal M. Predictive models of pain following root canal treatment: a prospective clinical study. Int Endod J. 2013 Aug;46(8):784-93. doi: 10.1111/iej.12059. Epub 2013 Feb 12.

    PMID: 23402273BACKGROUND
  • Dewsnup N, Pileggi R, Haddix J, Nair U, Walker C, Varella CH. Comparison of bacterial reduction in straight and curved canals using erbium, chromium:yttrium-scandium-gallium-garnet laser treatment versus a traditional irrigation technique with sodium hypochlorite. J Endod. 2010 Apr;36(4):725-8. doi: 10.1016/j.joen.2009.11.017. Epub 2010 Feb 6.

    PMID: 20307752BACKGROUND
  • Figini L, Lodi G, Gorni F, Gagliani M. Single versus multiple visits for endodontic treatment of permanent teeth: a Cochrane systematic review. J Endod. 2008 Sep;34(9):1041-7. doi: 10.1016/j.joen.2008.06.009.

    PMID: 18718362BACKGROUND
  • Christo JE, Zilm PS, Sullivan T, Cathro PR. Efficacy of low concentrations of sodium hypochlorite and low-powered Er,Cr:YSGG laser activated irrigation against an Enterococcus faecalis biofilm. Int Endod J. 2016 Mar;49(3):279-86. doi: 10.1111/iej.12447. Epub 2015 Apr 1.

    PMID: 25772335BACKGROUND

MeSH Terms

Conditions

Pain, Postoperative

Interventions

Sodium Hypochlorite

Condition Hierarchy (Ancestors)

Postoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsPainNeurologic ManifestationsSigns and Symptoms

Intervention Hierarchy (Ancestors)

Hypochlorous AcidChlorine CompoundsInorganic ChemicalsOxidesOxygen CompoundsSodium Compounds

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Specialist Dentist

Study Record Dates

First Submitted

December 19, 2018

First Posted

December 21, 2018

Study Start

November 1, 2014

Primary Completion

December 1, 2015

Study Completion

December 1, 2015

Last Updated

July 21, 2020

Record last verified: 2018-12

Data Sharing

IPD Sharing
Will not share