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Postoperative PainNCT04326998

Gutta-percha Solvent on Postoperative Pain After Root Canal Retreatment

A study testing solvent and non-solvent in people with Postoperative Pain and Root Canal, run by Mahidol University at 1 site in Thailand.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The process of non-surgical retreatment includes removing the previous root canal filling materials, disinfecting and sealing the root canal system to prevent re-infection. Gutta-percha is the most common root canal filling material used with various types of sealers. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Postoperative Pain, Root Canal, Retreatment
What is being tested?
solvent and non-solvent
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteThailand
Study dates
18 Sep 2019to 18 Jun 2021
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • not be contra-indicated with medication used in this study (ibuprofen)
  • have a previously treated endodontic single-root tooth with the need of retreatment
  • all those teeth must be restorable
  • old root canal filling materials must be located at 1 to 3 mm from the radiographic apex in the periapical radiograph

Who cannot join

  • open apex, root resorption or root perforation
  • participants presenting pre-operative pain and/or swelling at the appointment visit
  • taking analgesics or antibiotics less than one week before appointment visit
  • experiencing problems in completing the pain questionnaires
  • tooth which does not contain gutta-percha
  • cannot be patent through the apex at the appointment visit

Trial locations and contacts

1 site in 1 country.

Thailand1 site
  • Mahidoluniversity

    Bangkok, 10400

Other trials in Thailand

About this study

Official title: Natural Gutta-percha Solvent Did Not Affect Postoperative Pain in Retreatment: a Randomized Clinical Trial

The process of non-surgical retreatment includes removing the previous root canal filling materials, disinfecting and sealing the root canal system to prevent re-infection. Gutta-percha is the most common root canal filling material used with various types of sealers. To remove gutta-percha, solvent has been suggested because of its ability to dissolve gutta-percha. The new formula, under the brand name, GuttaClear, has been investigated for its comparable dissolving ability and lower cytotoxicity when compared with others that are currently used. However, no information is currently available of GuttaClear solvent concerning postoperative pain. Therefore, the present study will evaluate postoperative pain after non-surgical retreatment cases using GuttaClear as a solvent compared with no solvent used. Sixty participants are chosen and distributed into 2 groups, randomly. After the procedures, participants will receive the questionnaires about postoperative pain and the amount of medication intake. Both will be recorded at six time periods: (1) immediately after procedure; (2) 6 hours after procedure; (3) 12 hours after procedure; (4) 24 hours after procedure; (5) 48 hours after procedure and (6) 72 hours after procedure.

Being tested
solvent, non-solvent
Medical subject headings
Pain, Postoperative

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • solventProcedure or surgery

    using solvent (GuttaClear) in procedure

  • non-solventProcedure or surgery

    non-solvent

Study groups in NCT04326998
Study groupRoleWhat they receive
non-solventActive comparatormechanical or heat treatment
Receives: Procedure: non-solvent
solventExperimentalGuttaClear
Receives: Procedure: solvent

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. postoperative pain

    NRS score recorded from 0 to 10 while 0 means no pain and 10 means the worst possible pain

    Measured: 3 days

Secondary outcomes (1)
  1. number of Ibuprofen intake

    Measured: 3 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Mar 2020
  2. Study start18 Sep 2019
  3. Primary completion18 Mar 2021
  4. Study completion18 Jun 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04326998
Sponsor's protocol ID
MU-DT/PY-IRB 2019/054.2608
Status last verified
Sep 2021
First submitted
27 Mar 2020
Last updated
21 Sep 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Jantarat J, Malhotra W, Sutimuntanakul S. Efficacy of grapefruit, tangerine, lime, and lemon oils as solvents for softening gutta-percha in root canal retreatment procedures. J Investig Clin Dent. 2013 Feb;4(1):60-3. doi: 10.1111/j.2041-1626.2012.00143.x.

    PubMed 23382062
  • Genc Sen O, Erdemir A, Canakci BC. Effect of solvent use on postoperative pain in root canal retreatment: a randomized, controlled clinical trial. Clin Oral Investig. 2020 Jan;24(1):257-263. doi: 10.1007/s00784-019-02948-3. Epub 2019 May 15.

    PubMed 31093742
  • Topcuoglu HS, Topcuoglu G. Postoperative pain after the removal of root canal filling material using different techniques in teeth with failed root canal therapy: a randomized clinical trial. Acta Odontol Scand. 2017 May;75(4):249-254. doi: 10.1080/00016357.2017.1283707. Epub 2017 Feb 5.

    PubMed 28162017
  • Garcia-Font M, Duran-Sindreu F, Morello S, Irazusta S, Abella F, Roig M, Olivieri JG. Postoperative pain after removal of gutta-percha from root canals in endodontic retreatment using rotary or reciprocating instruments: a prospective clinical study. Clin Oral Investig. 2018 Sep;22(7):2623-2631. doi: 10.1007/s00784-018-2361-x. Epub 2018 Feb 2.

    PubMed 29396645
  • Sirijindamai D, Wichai W, Mitrirattanakul S, Jantarat J. Effect of GuttaClear on Postoperative Pain After Root Canal Retreatment: A Randomized Clinical Trial. Eur Endod J. 2023 Jan;8(1):55-64. doi: 10.14744/eej.2022.85047.

    PubMed 36748447

Questions about this trial

What is this clinical trial studying?

A study testing solvent and non-solvent in people with Postoperative Pain and Root Canal, run by Mahidol University at 1 site in Thailand.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 21 Sep 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Thailand. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

postoperative pain (time frame: 3 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04326998, which also lists 5 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Sep 2021.

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