ClinicalTrials.gg
CompletedNCT05952921HOCl-Post-AAUpdated Jul 19, 2023

Comparison of the Effectiveness of Hypochlorous Acid and Chlorhexidine as a Post-surgical Antimicrobial Agent

An interventional study of Mouthwash and Chlorhexidine in Periodontal Diseases, Chronic Periodontitis and Microbial Colonization, sponsored by Universidad El Bosque, Bogotá. Completed at 1 site in Colombia. Open to participants aged 20 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-07-19.

Primary conditionChronic PeriodontitisRegistry: Periodontal DiseasesReclassifiedWhy we changed it
Registry
Periodontal Diseases — the first condition term the registry derived for this study.
ClinicalTrials.gg
Chronic Periodontitis
Why
  1. The study's listed conditions name Chronic Periodontitis, a narrower term within Periodontal Diseases.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Universidad El Bosque, Bogotá · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 3 years 11 months after the study started (first participant enrolled Jul 2019, registered Jun 2023).
Phase
Not applicable
Study type
Interventional
Enrollment
32
Allocation
Randomized
Ages
20 Years to 60 Years
Sex
All
01

Study summary

The aim of the study is to evaluate the effectiveness of Hypochlorous Acid and Chlorhexidine as postsurgical antimicrobial agents in the treatment of severe chronic periodontal disease. The selected patients will be randomly divided into two groups of 16 each. Subjects in group I will undergo scaling and surgical root planing and will use mouthrinse with 0.05% HOCl for 7 days, after this they will mouthwash with 0.025% HOCl until day 21 and Subjects in group II will undergo scaling and surgical root planing followed by a rinse with CHX 0.2% for 7 days, after this they will mouthwash with 0.12% CHX until day 21. Null Hypothesis: There are no significant differences between hypochlorous acid and chlorhexidine in reducing plaque formation at 7, 21 and 90 days of evaluation.

There are no significant differences between HOCl and CHX in the elimination or reduction of periodontopathogenic microorganisms at 7, 21 and 90 days. Alternative hypotheses: There are significant differences between hypochlorous acid and chlorhexidine in reducing plaque formation at 7, 21 and 90 days of evaluation. There are significant differences between HOCl and CHX in the elimination or reduction of periodontopathogenic microorganisms at 7, 21 and 90 days.

Read the detailed description

For the HOCl effectiveness study, parallel groups were compared to determine the clinical and microbiological effectiveness of hypochlorous acid by evaluating the reduction of plaque index, gingival index and clinical insertion level as a primary outcome with chlorhexidine, for a period of 7, 21 and 90 days. The selected patients will be randomly divided into two groups of 16 each. Subjects in group I: 16 subjects for scaling and surgical root planing (surgical technique Modified Widman) and HOCl 0.05% for 7 days and HOCl 0.025% until day 21 and Subjects in group II: 16 subjects for scaling and surgical root planing (surgical technique Modified Widman) and CHX 0.2% for 7 days and 0.12% CHX until day 21. At the beginning of the study (day0) all patients will be evaluated the plaque index, gingival index, periodontal chart, saliva sample collection and subgingival microbiological test, all will receive surgical periodontal treatment (scaling and surgical root planing surgical technique Modified Widman) after the surgery will be instructed to rinse with 15 ml twice a day for 30 seconds in the morning 30 minutes after breakfast and brushing teeth, and at night, before going to sleep with one of the two Rinses: HOCl 0.05% for the first seven days and 0.025% from day eight to day 21 and CHX 0.2% for the first seven days and 0.12% from day eight to day 21. The rinses were coded to avoid any bias and the codes will not be broken before the study ends. Patients will be assigned randomly each will receive a flushing flask identified as solution "A" or "B". These bottles will be identical in terms of shape, color and material. Neither the subject nor the dentists will be informed about the group assignment. The principal investigator who does not participate in the treatment or data collection will have access to a closed envelope with the allocation information. Each of the participants will be clear that the area where the surgical procedure should be performed should remain unbrushed for 21 days. After 21 days all individuals will be given a special toothbrush for after surgery and indications are given for the brushing of the operated area. Adverse effects were evaluated both microbiologically to verify the absence or presence of opportunistic flora associated with the use of mouthwashes and effects on teeth and mucous membranes using a survey and clinical assessment.

The data will be collected as follows:

Day zero will evaluate plaque and gingival index, periodontal pocket depth al probing, clinical insertion level, saliva uptake and subgingival sampling for microbiological analysis. On day 7 suture removal and plaque and gingival index, saliva sampling and subgingival sampling for microbiological analysis were evaluated. On day 21, plaque and gingival index, saliva sampling and subgingival sampling will be evaluated for microbiological analysis. And on day 90, plaque and gingival index, periodontal pocket depth at probing, clinical insertion level, saliva sampling and subgingival sampling for microbiological analysis.

For the test the following parameters will be evaluated: Gingival Index and Plaque Index. The modified gingival index and the modified visible plaque index will be evaluated. Four evaluations will be performed: one at the beginning of the study, another at day 7, 21 and the last at day 90 and the Index of visible plaque and Gingival index (Modified Silness \& Loe) will be used. The probing depth and the level of clinical insertion will be measured in six sites per tooth (mesiobuccal, buccal, distobuccal, distolingual, lingual and mesiolingual) exclusion of the third molar, on day 0 and 90. Measurements will be recorded in the periodontal chart and a North Carolina periodontal probe (Hu-Friedy, Chicago, IL, USA) will be used. Sampling of saliva and microbial count: Microbiological samples in saliva and subgingival will be collected before surgery (day 0) and after surgery at day 7, 21 and 90. For the sampling of subgingival bacteria, the selected sites were cleaned (sterile curettes) before sampling, with cotton roll the field is isolated and dried carefully to avoid contamination, bacterial samples will be collected with paper tips of endodontics sterile (size 55 absorbent paper, Dentsply, Maillefer). Samples will be individually placed in labeled Eppendorf tubes containing Buffer, kept at -70°C and then sent to the laboratory. Will be processed in the laboratory of Oral Microbiology of the Universidad el Bosque. Samples will be analyzed using the real-time PCR technique.

02

Conditions studied

  • Periodontal Diseases
  • Chronic Periodontitis
  • Microbial Colonization

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Keywords

  • Chlorhexidine
  • HOCl
  • bacterial recolonization
  • antiplaque
03

In context

Chronic Periodontitis Reclassified

377 studies on the registry are indexed under Chronic Periodontitis; 21 are open to participants now.

This study's enrollment of 32 is below the median of 46 across 307 interventional studies indexed under Chronic Periodontitis.

Browse Chronic Periodontitis studies →

Lead sponsor

Universidad El Bosque, Bogotá is the lead sponsor of 10 studies on the registry; 1 is open to participants now.

Compared within Chronic Periodontitis, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Periodontal Diseases. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
20 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

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

  • Men and women.
  • Age between 20 and 60 years.
  • Diagnosis of chronic periodontitis.
  • Minimum 20 teeth and minimum 3 teeth with at least one site with PD≥5 mm and CAL> 4 mm
  • Radiographic evidence of bone loss.
  • Good general health.

Exclusion criteria

Exclusion Criteria:

  • Prior periodontal therapy.
  • Smokers.
  • Antibiotic therapy in the last 4 months, consumption of NSAIDs.
  • Pregnancy and / or breastfeeding.
  • Systemic pathology that may affect the progression of PD.
  • Allergy to HOCl or CHX.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
32 participants (actual)

Study arms

  • Experimental
    Hypochlorous acid

    Thirty-two voluntary participants were randomly assigned to receive one of two post-surgical protocols after periodontal surgery: a high concentration rinse with 0.05% HOCl (7 days), followed by 0.025% HOCl /(14 days)

    Other: Mouthwash

  • Active comparator
    Chlorhexidine

    Thirty-two voluntary participants were randomly assigned to receive one of two post-surgical protocols after periodontal surgery: a high concentration of 0.2% CHX (7 days), followed by 0.012% CHX (14 days).

    Other: Chlorhexidine

Interventions

  • OtherMouthwash

    Concentration rinse with 0.05% HOCl

  • OtherChlorhexidine

    A high concentration of 0.2% CHX (7 days), followed by 0.012% CHX (14 days).

06

What researchers measure

Primary outcomes

  1. Plaque Index (PI)

    Presence or absence of visible plaque evaluated with a periodontal probe

    Time frame: Baseline

  2. Plaque Index (PI)

    Presence or absence of visible plaque evaluated with a periodontal probe

    Time frame: 7 days

  3. Plaque Index (PI)

    Presence or absence of visible plaque evaluated with a periodontal probe

    Time frame: 21 days

  4. Plaque Index (PI)

    Presence or absence of visible plaque evaluated with a periodontal probe

    Time frame: 90 days

  5. Gingival index (GI)

    Presence or absence of changes in gingiva color

    Time frame: Baseline

  6. Gingival index (GI)

    Presence or absence of changes in gingiva color

    Time frame: 7 days

  7. Gingival index (GI)

    Presence or absence of changes in gingiva color

    Time frame: 21 days

  8. Gingival index (GI)

    Presence or absence of changes in gingiva color

    Time frame: 90 days

  9. Periodontal pocket depth (PD)

    Depth in millimeters with a North Carolina periodontal probe (Hu-Friedy, Chicago, IL, USA) at six sites per tooth (mesiobuccal, buccal, distobuccal, distolingual, lingual, and mesiolingual), excluding third molar

    Time frame: Baseline

  10. Periodontal pocket depth (PD)

    Depth in millimeters with a North Carolina periodontal probe (Hu-Friedy, Chicago, IL, USA) at six sites per tooth (mesiobuccal, buccal, distobuccal, distolingual, lingual, and mesiolingual), excluding third molar

    Time frame: 90 days

  11. Clinical attachment level (CAL)

    Depth in millimeters with a North Carolina periodontal probe (Hu-Friedy, Chicago, IL, USA) at six sites per tooth (mesiobuccal, buccal, distobuccal, distolingual, lingual, and mesiolingual), except the third molar. Distance in millimeters from the cementoenamel limit to the bottom of the sulcus/periodontal pocket.

    Time frame: Baseline

  12. Clinical attachment level (CAL)

    Depth in millimeters with a North Carolina periodontal probe (Hu-Friedy, Chicago, IL, USA) at six sites per tooth (mesiobuccal, buccal, distobuccal, distolingual, lingual, and mesiolingual), except the third molar. Distance in millimeters from the cementoenamel limit to the bottom of the sulcus/periodontal pocket.

    Time frame: 90 days

  13. Bleeding on probing (BOP)

    Presence of bleeding at the examined site up to 10 seconds after the examination.

    Time frame: Baseline

  14. Bleeding on probing (BOP)

    Presence of bleeding at the examined site up to 10 seconds after the examination.

    Time frame: 90 days

  15. Microbiological evaluation

    Real-time PCR with absolute quantification to confirm the number of colony-forming units (CFU) of bacterial samples from the six sites with the highest PD; specifically P gingivalis, T denticola, T forsythia, E nodatum and A. actinomycetemcomitans

    Time frame: Baseline

  16. Microbiological evaluation

    Real-time PCR with absolute quantification to confirm the number of colony-forming units (CFU) of bacterial samples from the six sites with the highest PD; specifically P gingivalis, T denticola, T forsythia, E nodatum and A. actinomycetemcomitans

    Time frame: 7 days

  17. Microbiological evaluation

    Real-time PCR with absolute quantification to confirm the number of colony-forming units (CFU) of bacterial samples from the six sites with the highest PD; specifically P gingivalis, T denticola, T forsythia, E nodatum and A. actinomycetemcomitans

    Time frame: 21 days

  18. Microbiological evaluation

    Real-time PCR with absolute quantification to confirm the number of colony-forming units (CFU) of bacterial samples from the six sites with the highest PD; specifically P gingivalis, T denticola, T forsythia, E nodatum and A. actinomycetemcomitans

    Time frame: 90 days

Secondary outcomes

  1. Adverse effects

    A survey was carried out on each participant at 7 and 21 days of the study to identify clinical adverse effects such as burning sensation, burning or pain in the oral mucosa, sensation of dryness or dryness, and changes in the perception of taste or the color in the teeth.

    Time frame: 7 days

  2. Adverse effects

    A survey was carried out on each participant at 7 and 21 days of the study to identify clinical adverse effects such as burning sensation, burning or pain in the oral mucosa, sensation of dryness or dryness, and changes in the perception of taste or the color in the teeth.

    Time frame: 21 days

07

Study locations

1 site
  • Universidad El Bosque
    Bogotá, 110011, Colombia
08

References and documents

Publications

  • Castillo DM, Castillo Y, Delgadillo NA, Neuta Y, Jola J, Calderon JL, Lafaurie GI. Viability and Effects on Bacterial Proteins by Oral Rinses with Hypochlorous Acid as Active Ingredient. Braz Dent J. 2015 Oct;26(5):519-24. doi: 10.1590/0103-6440201300388. PubMed 26647939 ↗
  • Lafaurie GI, Zaror C, Diaz-Baez D, Castillo DM, De Avila J, Trujillo TG, Calderon-Mendoza J. Evaluation of substantivity of hypochlorous acid as an antiplaque agent: A randomized controlled trial. Int J Dent Hyg. 2018 Nov;16(4):527-534. doi: 10.1111/idh.12342. Epub 2018 Apr 2. PubMed 29608039 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 19, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05952921
Lead sponsor
Universidad El Bosque, Bogotá
Responsible party
David Díaz-Báez (Clinical Professor, Universidad El Bosque, Bogotá) — Principal investigator
First posted
Jul 19, 2023
Start date
Jul 10, 2019
Primary completion
Dec 1, 2019
Completion
Dec 15, 2019
Last update
Jul 19, 2023

Study contacts

Julio Plata, DDS MSc
principal investigator · Universidad El Bosque
Gloria Lafaurie, DDS MSc
study director · Unit of Basic Oral Investigation (UIBO) - Universidad El Bosque
David Díaz-Báez, DDS MSc
principal investigator · Unit of Basic Oral Investigation (UIBO) - Universidad El Bosque

Oversight

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

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