ClinicalTrials.gg
Status unknownNCT04669392Updated Jul 29, 2021

The Effect of Using 70% Ethanol Alcohol as a Root Canal Irrigant on Increasing the Success Rate of Metapex in Pulpectomy Compared to Normal Saline in Primary Molars

An Early Phase 1 interventional study of 70% Ethanol Alcohol in Pulpitis - Irreversible, Resorption, Root and Abscess Bone, sponsored by Cairo University. Status unknown. Open to participants aged 4 Years to 7 Years. Per ClinicalTrials.gov, last updated 2021-07-29.

Sponsored by Cairo University · Early Phase 1, Interventional, and Prevention

The sponsor has not verified this record recently (last verified Jul 2021), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Early Phase 1
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
4 Years to 7 Years
Sex
All
01

Study summary

The aim of the study is to perform a clinical and radiographic evaluation of 70% Ethanol Alcohol versus Normal Saline as root canal irrigating solutions in partial pulpectomy of primary molars with Metapex.

Read the detailed description

In permanent dentition, Calcium Hydroxide-Iodoform paste (Metapex) has a high potential in forming a calcific barrier in the pulpal tissue. Yet, in primary dentition Metapex forms a chronic inflammatory reaction to the pulpal tissue leading to its internal and root resorption. Although the high success rate of Metapex in partial pulpectomy, the rapid resorption of Metapex has led to the presence of the hollow tube effect due to voids formation in the canals. However, this will cause early root resorption before the time of exfoliation. Due to its rapid resorption, Metapex is usually recommended to be used in the pulpectomy of teeth near exfoliation in order to avoid the early root resorption of primary dentition in order to avoid the premature loss of the endodontically treated vital primary teeth with Metapex.

Saline solution is the basic irrigating solution in root canal treatments, yet it has no antimicrobial activities and only results in cleaning the root canals. Ethanol irrigation is believed to be an alternative promising replacement in tissue fixation from Formocresol due to the concerns from its carcinogenicity and toxicity. Also, Ethanol has an excellent bactericidal, virucidal, and fungicidal, and most importantly it is one of the volatile liquids.

In this study, the effect of Ethanol Alcohol on increasing the success rate of Metapex in vital pulp therapy will be studied.

02

Conditions studied

  • Pulpitis - Irreversible
  • Resorption, Root
  • Abscess Bone
  • Mobility, Tooth
  • Pain

Keywords

  • Metapex
  • Primary dentition
03

In context

Root Resorption

43 studies on the registry are indexed under Root Resorption; 9 are open to participants now.

This study's planned enrollment of 20 is below the median of 29 across 36 interventional studies indexed under Root Resorption.

Browse Root Resorption studies →

Lead sponsor

Cairo University is the lead sponsor of 4,941 studies on the registry; 1,458 are open to participants now.

Of its 37 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
4 Years to 7 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Patients medically within normal.
  2. Cooperative patients and cooperative parents.
  3. Children aged 4-7 years old.
  4. Primary mandibular second molar.
  5. Deep carious molars.
  6. A history of spontaneous pain.
  7. Molars with pulp exposure due to caries.
  8. Absences of Internal resorption.
  9. Absences of external pathological resorption.
  10. where the bleeding could not be stopped following removal of the coronal pulp tissue

Exclusion criteria

Exclusion Criteria:

  1. Parents unable to give .
  2. Necrotic pulp.
  3. Unrestorable Teeth.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

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You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Early Phase 1
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Experimental
    70% Ethanol

    Using 70% Ethanol Alcohol as a root canal irrigating solution before obturating the lower primary second molar with Metapex

    Drug: 70% Ethanol Alcohol

  • No intervention
    Normal Saline

    Irrigating the canals with Normal Saline before obturating the lower primary second molar with Metapex

Interventions

  • Drug70% Ethanol Alcohol

    Ethanol, also called ethyl alcohol, grain alcohol, or alcohol, a member of a class of organic compounds that are given the general name alcohols. Ethanol is a commonly used fixative. Fixation of the inner layers of the tissue depends on the ability of the fixative to diffuse into the tissue. Moreover, Ethanol has antibacterial antifungal, and antiviral properties. 70% Ethanol is the safest concentration because the water that has been mixed into the ethanol slows the drying time, creating a longer contact time. Ethanol needs to have a contact time of at least 10 seconds to kill Staphylococcus aureus and Streptococcus pyogenes. At a 10 second drying time.

06

What researchers measure

Primary outcomes

  1. Postoperative pain of partial pulpectomy of Metapex using both 70% Ethanol Alcohol and Normal Saline as root canal irrigating solutions.

    Assessment through Visual Analog Scale , A score from (0-10) 0 is means no pain and 10 is the maximum level of pain.

    Time frame: Patients will be assessed at 12 months follow ups

Secondary outcomes

  1. Radiographic evaluation of partial pulpectomy of Metapex using both 70% Ethanol Alcohol and Normal Saline as root canal irrigating solutions.

    Assessment through Visual interpretation of digital radiograph

    Time frame: Patients will be assessed at 12 months follow ups

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Brand, C. & At, D. M. E. Guidelines for Disinfection and Sterilization in Healthcare Facilities , 2008 ( Centers for Disease Control ). 2008, (2008).
  • Nurko C, Ranly DM, Garcia-Godoy F, Lakshmyya KN. Resorption of a calcium hydroxide/iodoform paste (Vitapex) in root canal therapy for primary teeth: a case report. Pediatr Dent. 2000 Nov-Dec;22(6):517-20. PubMed 11132515 ↗
  • Al-Ostwani AO, Al-Monaqel BM, Al-Tinawi MK. A clinical and radiographic study of four different root canal fillings in primary molars. J Indian Soc Pedod Prev Dent. 2016 Jan-Mar;34(1):55-9. doi: 10.4103/0970-4388.175515. PubMed 26838149 ↗
  • Thiruvenkadam G, Asokan S, John B, Priya PG. Effect of 95% Ethanol as a Final Irrigant before Root Canal Obturation in Primary Teeth: An in vitro Study. Int J Clin Pediatr Dent. 2016 Jan-Mar;9(1):21-4. doi: 10.5005/jp-journals-10005-1327. Epub 2016 Apr 22. PubMed 27274150 ↗
  • Panzacchi S, Gnudi F, Mandrioli D, Montella R, Strollo V, Merrick BA, Belpoggi F, Tibaldi E. Effects of short and long-term alcohol-based fixation on Sprague-Dawley rat tissue morphology, protein and nucleic acid preservation. Acta Histochem. 2019 Aug;121(6):750-760. doi: 10.1016/j.acthis.2019.05.011. Epub 2019 Jul 3. PubMed 31277893 ↗

Individual participant data

Plan to share: Undecided

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 29, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04669392
Lead sponsor
Cairo University
Responsible party
Thamar Al-Gannah Samy Rashed (Thamar Al-Gannah Samy Mohamed Rashed, Cairo University) — Principal investigator
First posted
Dec 16, 2020
Start date
Dec 1, 2021 (estimated)
Primary completion
Dec 1, 2022 (estimated)
Completion
Jan 1, 2023 (estimated)
Last update
Jul 29, 2021

Study contacts

Thamat Al-Gannah SM Rashed, Bachelor's degree of dentistry
Contact
ThamarAlGannah.Mohamed@dentistry.cu.edu.eg
00201111760022

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is status unknown, as verified in Jul 2021. You cannot join it, but the record below documents what was studied.

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