Exploring the impact of antimicrobial treatments combined with dental cleaning on gum disease patients

ISRCTN ISRCTN14161265
DOI https://doi.org/10.1186/ISRCTN14161265
Submission date
30/04/2025
Registration date
21/05/2025
Last edited
27/05/2025
Recruitment status
Recruiting
Overall study status
Ongoing
Condition category
Oral Health
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
This study aims to find out if using an antimicrobial treatment called HybenX (HY) along with standard dental cleaning (SRP) provides extra benefits for people with severe gum disease (periodontitis). Researchers will compare the results of using both treatments together versus using only the dental cleaning.

Who can participate?
Adults over 18 years old with severe gum disease (stage III or IV periodontitis), good general health, and at least five natural teeth per quadrant can participate. Participants must have at least two sites with a pocket depth greater than 4 mm.

What does the study involve?
Participants will receive a full-mouth examination (excluding wisdom teeth) at the start and after three months. In each participant, two randomly chosen sections of the mouth will be treated with both SRP and HY, while the other two sections will receive only SRP. The study will be conducted at a single center.

What are the possible benefits and risks of participating?
Participants will benefit from free complex periodontal assessment and treatment. Risks include potential allergic reactions and chemical burns from HybenX, and complications from anesthesia such as temporary loss of sensitivity, pain at the puncture site, and local hematoma. There may also be other unpredictable risks.

Where is the study run from?
Iuliu Hațieganu University of Medicine and Pharmacy (Romania)

When is the study starting and how long is it expected to run for?
October 2024 to October 2027

Who is funding the study?
Universitatea de Medicină şi Farmacie Iuliu Haţieganu Cluj-Napoca (Romania)

Who is the main contact?
Iulia Roxana Costin (Maniac-Costin), costiniuliaroxana@yahoo.com

Contact information

Mrs Iulia Roxana Costin (Maniac-Costin)
Public, Scientific

Fabricii, nr. 19, bl Ro 25, sc. 5, ap. 41
Cluj-Napoca
400620
Romania

ORCiD logoORCID ID 0009-0000-3976-3935
Phone +40 753149589
Email costin_iulia_roxana@elearn.umfcluj.ro
Prof Alexandra Roman
Principal investigator

street Victor Babes, no. 15
Cluj-Napoca
400012
Romania

ORCiD logoORCID ID 0000-0002-0649-9426
Phone +40 722627488
Email veve_alexandra@yahoo.com
Dr Andra Soanca

street Victor Babes, no. 15
Cluj-Napoca
400012
Romania

ORCiD logoORCID ID 0000-0001-8452-6410
Phone +40 723753324
Email andrapopovici@gmail.com

Study information

Study designSingle center split-mouth randomized controlled clinical trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital, School, University/medical school/dental school
Study typeTreatment
Participant information sheet 47256 PIS 1 in Romanian.pdf
Scientific titleThe use of a local desiccant antimicrobial agent in periodontal therapy: a randomized clinical trial
Study acronymULDAAPT
Study objectivesThe study aimed to analyze whether there are differences in clinical efficacy by using a commercial desiccant antimicrobial agent Hybenx in combination with subgingival mechanical instrumentation (SRP) vs. SRP alone for the treatment of severe periodontitis cases during a three-month interval.
Ethics approval(s)

Approved 03/12/2024, Ethics Committee of the County Emergency Hospital (str. Clinicilor nr. 3-5, Cluj-Naopca, 400006, Romania; +40 264597256; secretariat@scjucluj.ro), ref: 46170

Health condition(s) or problem(s) studiedPeriodontitis
InterventionEach patient will receive an initial complete full-mouth clinical examination, excluding wisdom teeth (baseline assessment). Periodontal examinations will be performed in the clinic setting with standard equipment: dental mirror, UNC-15 periodontal probe, with millimiter markings (Hu-Friedy, Chicago, IL, USA).
Based on the evaluated clinical periodontal parameters: probing depth (PD), gingival recession (GR), clinical attachment loss (CAL), and bleeding on probing scores the diagnosis of periodontitis, will be established, according to the 2018 classification system developed by the EFP and AAP. Gingival inflammation will be assessed using the Gingival Bleeding Index (GBI), and oral hygiene will be quantified with the Oral Hygiene Index (OHI) scores.
The periodontal diagnosis will be set based on the presence of interdental CAL at a minimum of two non-adjacent teeth, or buccal /oral CAL ≥ 3 mm associated with PD > 3 mm. The identified periodontitis cases will be divided into four stages based on the severity of the periodontal tissue destruction: stage I (mild) periodontitis; stage II (moderate) periodontitis; stage III and stage IV (severe and very severe) periodontitis. Cases that do not meet periodontitis case definition criteria will be classified as either gingivitis or periodontally healthy cases.
After initial clinical periodontal assessment and diagnosis, a standard, stepwise treatment plan will be provided for each patient based on the available recommendations, including the first-step of the periodontal therapy, comprising of patient behavioral change interventions, supragingival biofilm control, and management of modifiable risk factors. Cause-related therapy consisting of mechanical subgingival instrumentation will be initiated only after the first-step therapy endpoints will be achieved. For each periodontitis patient, two hemiarches of the four hemiarches will be treated with subgingival mechanical instrumentation (SRP) plus HybenX and will be included in the test group (SRP plus HY group), while the other two hemiarches that will receive SRP alone will be included in the control group (SRP group). After completing the study, patients will receive the other therapy steps as planned.

The hemiarches (hemiarches 1 and 4) will be randomly assigned to one of the therapies (SRP plus HY or SRP alone) based on a randomization table. On the first treatment day, hemiarches 1 and 4 will be treated following random allocation (test therapy or control therapy); the following day, the other treatment will be applied for the other two hemiarches (hemiarches 2 and 3).

The records of the participants will not contain any mention of treatment allocation. The list containing allocation numbers and patient’s names will be kept by the senior periodontologist, who is also responsable for patient’s recruitment. The baseline examination and the treatment will be provided by two investigators, and re-evaluations will be performed by other investigators. Investigators conducting the follow-up examination and the statistician will not be aware of the treatment type received by patients.
HybenX application protocol according to the manufacturer:
• Dry the tooth
• Apply HybenX® via cannula before scaling and root planing in pockets deeper than 5 mm.
• Wait 10–30 seconds
• Remove HybenX® with supragingival and subgingival to the base of periodontal pockets suction and rinse with water until clear
Intervention typeDevice
Pharmaceutical study type(s)Pharmacodynamic
PhasePhase III/IV
Drug / device / biological / vaccine name(s)Hybenx (a concentrated mixture of acidified phenolics, a desiccating agent, consisting of 60% sulfonated phenolics, 28% sulfuric acid, and 12% water)
Primary outcome measureMeasured at baseline and follow up:
1. Probing depth (PD) is measured using a periodontal probe at six sites per tooth
2. Gingival recession (GR) is measured using a periodontal probe at six sites per tooth
3. Clinical attachment loss (CAL) is measured using a periodontal probe at six sites per tooth
4. Gingival Bleeding Index (GBI) is measured using the presence of bleeding upon probing at four sites per tooth and calculated as a percentage of bleeding sites over total sites
5. Oral Hygiene Index (IHI) is measured using the presence of visible dental plaque at four sites per tooth and calculated as a percentage of plaque-positive sites over total sites
6. Change in total probing depth (PD) is measured using a periodontal probe at six sites per tooth and compared between intervention groups
Secondary outcome measuresMeasured at baseline and follow up:
1. Total probing depth (PD) is measured using a periodontal probe at six sites per tooth, calculating the average of all sites evaluated
2. Interproximal probing depth (PD) is measured using a periodontal probe at six sites per tooth, calculating the average of interproximal sites evaluated
3. Total clinical attachment loss (CAL) is measured using a periodontal probe at six sites per tooth, calculating the average of all sites evaluated
4. Interproximal clinical attachment loss (CAL) is measured using a periodontal probe at six sites per tooth, calculating the average of interproximal sites evaluated
5. Count of total probing depths equal to 5 mm is measured using a periodontal probe at six sites per tooth, summing the number of sites with PD = 5 mm
6. Count of interproximal probing depths equal to 5 mm is measured using a periodontal probe at six sites per tooth, summing the number of interproximal sites with PD = 5 mm
7. Count of total probing depths greater than or equal to 6 mm is measured using a periodontal probe at six sites per tooth, summing the number of sites with PD ≥ 6 mm
8. Count of interproximal probing depths greater than or equal to 6 mm is measured using a periodontal probe at six sites per tooth, summing the number of interproximal sites with PD ≥ 6 mm
9. Oral Hygiene Index (IHI) score is measured using a dental plaque detector at four sites per tooth, calculated as the percentage of plaque-positive sites over total sites
10. Gingival Bleeding Index (GBI) score is measured using a periodontal probe at four sites per tooth, calculated as the percentage of bleeding sites over total sites
Overall study start date01/10/2024
Completion date01/10/2027

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit65 Years
SexAll
Target number of participants60
Key inclusion criteria1. Periodontitis stage III-IV
2. Good systemic health
3. Age>18 years
4. Minimum 5 natural teeth per quadrant
5. A minimum of 2 sites on different teeth with a pocket probing depth (PD)>4 mm
Key exclusion criteria1. Periodontal and/or antibiotic therapy within the last 6 months
2. Use of antiseptic mouthwashes in the last 3 months
3. Pregnancy
4. Severe systemic conditions
5. Immunosuppressive therapy/current radiotherapy
Date of first enrolment12/12/2024
Date of final enrolment01/10/2026

Locations

Countries of recruitment

  • Romania

Study participating centre

Periodontology Outpatient Clinic, University of Medicine and Pharmacy "Iuliu Hațieganu", Cluj-Napoca
Str. Victor Babes nr. 15
Cluj-Napoca
400012
Romania

Sponsor information

Funders

Funder type

University/education

Universitatea de Medicină şi Farmacie Iuliu Haţieganu Cluj-Napoca
Government organisation / Universities (academic only)
Alternative name(s)
University of Medicine and Pharmacy Cluj-Napoca, Iuliu Haţieganu University of Medicine and Pharmacy, University of Medicine and Pharmacy "Iuliu Haţieganu" Cluj-Napoca, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, Universitatea de Medicină și Farmacie “Iuliu Hațieganu”, UMF Iuliu Hațieganu Cluj-Napoca, UMF Cluj, UMF Cluj-Napoca, UMFCLUJ, UMF
Location
Romania

Results and Publications

Intention to publish date01/10/2027
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal
IPD sharing planThe datasets generated during and/or analysed during the current study will be available upon request from: Costin Iulia Roxana (Maniac-Costin), email address: costiniuliaroxana@yahoo.com

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet in Romanian 21/05/2025 No Yes
Participant information sheet in Romanian 21/05/2025 No Yes

Additional files

47256 PIS 1 in Romanian.pdf
in Romanian
47256 PIS 2 in Romanian.pdf
in Romanian

Editorial Notes

27/05/2025: Contact details updated.
21/05/2025: Trial's existence confirmed by Ethics Committee of the County Emergency Hospital.