NCT03711357

Brief Summary

A randomized clinical trial that evaluates the effect of using 980nm diode laser intracanal irradiation on postoperative pain and root canal disinfection in endodontic retreatment cases with chronic periapical lesions

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P25-P50 for not_applicable postoperative-pain

Timeline
Completed

Started Oct 2018

Typical duration for not_applicable postoperative-pain

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2018

Completed
12 days until next milestone

First Submitted

Initial submission to the registry

October 13, 2018

Completed
5 days until next milestone

First Posted

Study publicly available on registry

October 18, 2018

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2020

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2020

Completed
Last Updated

October 18, 2018

Status Verified

October 1, 2018

Enrollment Period

1.6 years

First QC Date

October 13, 2018

Last Update Submit

October 16, 2018

Conditions

Outcome Measures

Primary Outcomes (1)

  • postoperative pain, measured using Visual analogue scale (VAS)

    Visual analogue scale (VAS) will be used for to record severity of pain. It is a (0-10) scale. Criteria to determine the severity of postoperative pain will be as follows: (0: no pain), (1-3: mild pain), (4-6: moderate pain), (7-10: severe pain).

    7 days after root canal re-treatment procedures

Secondary Outcomes (2)

  • Root canal disinfection

    Four samples will be taken; first, second and third samples will be taken at first visit of endodontic retreatment procedures. while, the fourth sample will be taken in the second visit (7 days later).

  • number of analgesic tablets

    At day 7 after endodontic retreatment procedures

Study Arms (2)

laser

ACTIVE COMPARATOR

980 nm diode laser (maximum output of 3 watts and coupled with a fiber optic tip of 200 µm diameter) will be used for four irradiations, of 5 seconds each, after chemo-mechanical preparation procedures.

Radiation: 980 nm diode laser

Placebo

PLACEBO COMPARATOR

After chemo-mechanical preparation procedures, the diode laser fiber optic tip will be inserted inside the root canals but not activated.

Other: placebo

Interventions

980 nm high power diode laser device.

laser
placeboOTHER

the diode laser fiber optic tip will be inserted in root canals, but will not be activated.

Placebo

Eligibility Criteria

Age18 Years - 50 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Endodontic retreatment cases of single rooted teeth with chronic periapical lesions; with periapical radiolucency of less than 1 cm diameter will be selected.
  • Teeth with straight root canals.
  • Subjects aged between 18-50 years of age.
  • No contributory medical history.
  • No previous administration of analgesics and / or antibiotics within the previous 2 weeks.

You may not qualify if:

  • Retreatment cases with complications such as separated instruments, perforations, ledges, resorption, transportation, calcifications, immature apices and over fillings.
  • Teeth with curved roots.
  • Swelling or sinus tract.
  • Mutilated teeth that interfere with proper isolation and seal between visits.
  • Subjects with generalized periodontitis, or if the tooth has probing depth of more than 3 mm.
  • Subjects with uncontrolled diabetes or debilitating diseases.
  • Pregnant or nursing females.
  • Systemic disorders that necessitate antibiotic prophylaxis or prevent the use of Ibuprofen.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Pain, Postoperative

Interventions

Lasers, Semiconductor

Condition Hierarchy (Ancestors)

Postoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsPainNeurologic ManifestationsSigns and Symptoms

Intervention Hierarchy (Ancestors)

LasersOptical DevicesEquipment and SuppliesRadiation Equipment and Supplies

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
All the participants will be blinded, as they will not know which interventional group they belong to
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: A trial with two parallel groups
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

October 13, 2018

First Posted

October 18, 2018

Study Start

October 1, 2018

Primary Completion

May 1, 2020

Study Completion

June 1, 2020

Last Updated

October 18, 2018

Record last verified: 2018-10

Data Sharing

IPD Sharing
Will not share

There is no plan to make the participants data available to other researchers