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CompletedNCT04723732Updated Jan 26, 2021

Antiplaque, Antigingivitis and Anti-inflammatory Effects of Myrrh Mouthwash

An interventional study of Myrrh mouthwash and Chlorhexidine mouthwash in Gingivitis and Dental Plaque, sponsored by King Abdulaziz University. Completed at 1 site in Saudi Arabia. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-01-26.

Sponsored by King Abdulaziz University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 3 years 2 months after the study started (first participant enrolled Aug 2017, registered Nov 2020).
Phase
Not applicable
Study type
Interventional
Enrollment
24
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

Myrrh-based mouthwash has the potential to be a suitable alternative to the gold standard chlorhexidine mouthwash for dental plaque and gingivitis reduction. To date, however, little research has been carried out to determine its true clinical significance on periodontal health. The purpose of this study is to evaluate and compare the efficacy of 1% myrrh mouthwash with commercially available 0.2% chlorhexidine mouthwash in terms of plaque and gingivitis reduction and inflammatory mediator (interleukin-1β) inhibition.

Read the detailed description

This will be a single-center, triple-blinded, randomized, three-arm parallel, controlled trial in periodontally healthy adult volunteers (no clinical attachment loss and bleeding on probing \< 10%). We will include all eligible patients seeking dental treatment at the center after gaining a written informed consent. After the initial dental screening and a session of professional teeth cleaning procedures, participants will be instructed to refrain from regular oral hygiene practices for 2 weeks to develop experimental gingivitis. Participants will then be randomly allocated to one of the three treatment groups [1:1:1] using a simple randomization method (i.e. computer-generated random numbers). They will be instructed to continue refrain from regular oral hygiene practices and use 10 ml of the assigned mouthwash twice daily for 1 minute. Treatment effect will be evaluated by comparing the baseline (day 0) and post-intervention (day 14) values of all clinical parameters (modified gingival index, plaque index, proinflammatory interleukin-1β biomarker, and Gingival Bleeding Index).

02

Conditions studied

  • Gingivitis
  • Dental Plaque

Keywords

  • gingivitis
  • herbal
  • myrrh
  • myrrha
  • antigingivitis
  • antiplaque
  • IL-1
  • dental plaque
03

In context

Gingivitis

590 studies on the registry are indexed under Gingivitis; 105 are open to participants now.

This study's enrollment of 24 is below the median of 64 across 478 interventional studies indexed under Gingivitis.

Browse Gingivitis studies →

Lead sponsor

King Abdulaziz University is the lead sponsor of 96 studies on the registry; 18 are open to participants now.

Of its 7 completed or terminated interventional studies of FDA-regulated products, 1 (14%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • good periodontal health;
  • dentition of ≥20 teeth and a minimum of 5 teeth per quadrant;
  • the absence of any systemic illness;
  • no history of oral prophylaxis in the past 6 months;
  • no relevant medical history that might compromise normal oral hygiene practice.

Exclusion criteria

Exclusion Criteria:

  • pocket depth >3 mm
  • severe misalignment of teeth;
  • the presence of orthodontic appliances;
  • intake of antibiotic and/or anti-inflammatory medications within the past 6 months;
  • use of tobacco;
  • inability of comply with the study's appointment schedule;
  • pregnant or breast-feeding mothers.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
24 participants (actual)

Study arms

  • Experimental
    Myrrh mouthwash

    1% mouthwash of Commiphora myrrha made from resin extract. Participants will use 10 ml of the mouthwash twice daily for 14 days.

    Drug: Myrrh mouthwash

  • Active comparator
    Chlorhexidine Mouthwash

    Commercial 0.2% Chlorhexidine gluconate mouthwash (Avalon Pharma, Riyadh). Participants will use 10 ml of the mouthwash twice daily for 14 days.

    Drug: Chlorhexidine mouthwash

  • Placebo comparator
    Normal saline

    Commercial 0.9% sodium chloride solution (Pharmaceutical solutions industry, Jeddah). Participants will use 10 ml of the mouthwash twice daily for 14 days.

    Drug: Normal saline

Interventions

  • DrugMyrrh mouthwash

    1% mouthwash solution of commiphora myrrha, made from Commiphora Myrrha resin extract.

    Also known as: Commiphora myrrha mouthwash

  • DrugChlorhexidine mouthwash

    0.2% mouthwash solution of chlorhexidine gluconate.

    Also known as: Chlorhexidine gluconate mouthwash, Avalon Avohex mouthwash

  • DrugNormal saline

    0.9% solution of sodium chloride, containing 9 g/L Sodium Chloride (154 mEq/L sodium and 154 mEq/L chloride)

    Also known as: Sodium Chloride solution

06

What researchers measure

Primary outcomes

  1. Change from Baseline in inflammation on the proinflammatory interleukin (IL)-1β biomarker at Day 14

    IL-1β is an important mediator of the inflammatory response. Elevated IL-1β levels have been reported in a number of infectious disease conditions and in noninfectious inflammatory conditions. Human IL-1β ELISA kit by BioVendor was utilized to determine the IL-1β level. Preparation of reagents, execution of test protocol, and calculation of results were done adhering to the manufacturer's Product Data Sheet enclosed with the kit. The absorbance of each strip was read on a spectro-photometer at 450 nm wave length.

    Time frame: Baseline and Day 14

Secondary outcomes

  1. Change from Baseline in gingivitis on the 4-point Modified Gingival Index (MGI) at Day 7 and 14

    The MGI is a noninvasive visual assessment tool to assess the severity of gingivitis over time. It uses a rating score between 0 (normal gingiva) and 3 (severe inflammation with tendency to spontaneous bleeding). Change = (Day 14 Score - Baseline Score)

    Time frame: Baseline, Day 7, and Day 14

  2. Change from Baseline in plaque accumulation on O'leary Plaque Index (PI) at Day 7 and 14

    The PI is a validated assessment tool based on recording of the presence of soft debris and mineralized deposits on all 4 surfaces of all teeth. It uses a rating score between 0 (no plaque) and 1 (plaque present at gingival margin). Change = (Day 14 Score - Baseline Score)

    Time frame: Baseline, Day 7, and Day 14

  3. Change from Baseline in gingival bleeding on the Gingival Bleeding Index (GBI) at Day 14

    The GBI is a reliable indicator of gingival inflammation and periodontal stability. It uses gentle probing of the orifice of the gingival sulcus. The bleeding on probing (BOP) was assessed using a standardized periodontal probe with a 0.6 mm tip and 1 mm marking. A trained examiner measured BOP applying probing forces not exceeding 0.25 N (25 g). A positive finding was recorded if bleeding occured within 10 seconds.

    Time frame: Baseline and Day 14

07

Study locations

1 site
  • King Abdul Aziz University
    Jeddah, Makkah 21589, Saudi Arabia
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 26, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04723732
Lead sponsor
King Abdulaziz University
Responsible party
talal zahid (Associate Professor, King Abdulaziz University) — Principal investigator
First posted
Jan 26, 2021
Start date
Aug 15, 2017
Primary completion
Aug 15, 2018
Completion
Dec 15, 2018
Last update
Jan 26, 2021

Study contacts

Talal Zahid, M.S
principal investigator · King Abdulaziz University

Oversight

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

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