The role of ozone on gingival tissue healing after gingivectomy

ISRCTN ISRCTN15523491
DOI https://doi.org/10.1186/ISRCTN15523491
Secondary identifying numbers 3035
Submission date
29/08/2024
Registration date
05/09/2024
Last edited
05/09/2024
Recruitment status
No longer recruiting
Overall study status
Completed
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:
Gingival enlargement is an oral condition that causes the gums to overgrow. It results from several factors, including inflammatory factors. Gingival enlargement can affect function, leading to difficulty speaking and chewing, which makes patients vulnerable to periodontal (gum) disease and halitosis (bad breath) and negatively affects their quality of life. Traditional periodontal treatment may not help in reducing gingival enlargement, so another option may be necessary, which is gingival resection. Traditional surgical resection with a scalpel (gingivectomy) is the standard method for treating gingival enlargement. Laser surgical resection is one of the modern treatment options, as the laser has the ability to reduce complications after surgery. Ozone treatment has been considered as a disinfectant aid due to its immunostimulating, antimicrobial and antioxidant effects. This study aims to test the effectiveness of applying ozone on wound healing and the extent of recurrence after traditional surgical cutting compared to laser cutting.

Who can participate?
Patients aged between 18 and 50 years with inflammatory gingival overgrowth that does not heal after 15 days of professional and individual care

What does the study involve?
In the first session, all patients will be prepared and educated on oral hygiene instructions. In the second session, 15 days after the patient has been prepared, if gingival overgrowth did not heal, a gingivectomy will be performed with a random choice of the traditional or laser surgical method. Participants are randomly allocated to the two treatment methods. (surgical method or laser method). Immediately after resection, ozone gas will be applied to the wound. At the follow-up sessions, pain, healing, gingival enlargement and patient satisfaction will be measured.

What are the possible benefits and risks of participating?
Benefits may include periodontal health improvement and patients will become more aware of the importance of oral care in addition to improving the patient's aesthetic and psychological aspects, reducing inflammation and thus improving their quality of life. Possible risks might include some pain and discomfort after the procedure.

Where is the study run from?
Damascus University (Syria)

When is the study starting and how long is it expected to run for?
March 2022 to October 2024

Who is funding the study?
Damascus University (Syria)

Who is the main contact?
Dr Dana Hussen, danahussen95@gmail.com, dana.hussen@damascusuniversity.edu.sy

Contact information

Dr Dana Hussen
Public, Scientific, Principal Investigator

Mashrou'a Dummar
Damascus
4671
Syria

Phone +963 (0)992185672
Email dana.hussen@damascusuniversity.edu.sy

Study information

Study designSingle-blinded randomized controlled clinical trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)University/medical school/dental school
Study typePrevention, Treatment
Participant information sheet Not available in web format, please use the contact details to request a participant information sheet
Scientific titleEvaluation of the efficacy of ozone in healing of inflammatory gingival enlargements after resection by traditional method or by diode laser
Study objectivesh0: There are no statistically significant differences between all treatment groups regarding the clinical studies indices.
h1: There are statistically significant differences between all treatment groups regarding the clinical studies indices.
Ethics approval(s)

Approved 20/06/2022, Scientific ethics committee at Damascus University (Baramkeh, Damascus, 4671, Syria; +963 (0)1133923223; ap.srd@damascusuniversity.edu.sy), ref: 2722

Health condition(s) or problem(s) studiedInflammatory gingival overgrowth
InterventionThe study aims to compare the surgical method and the laser method of gingivectomy and to compare applying ozone after gingivectomy or not applying it in both treatment groups.

The patients are randomly allocated into each group using a paper envelope and letting the patient choose the envelope (each envelope contains a treatment group).

The surgery treatment group is split into two groups (split-mouth technique): with ozone application or without ozone application. A Kirkland scalpel is used on the buccal and lingual surfaces of the gingival tissue. An Orban scalpel is used on interdental papillae. Ozone is then applied to interdental papillae on one side of the oral cavity and then gingival dressing is applied.

Ozone is applied on every interdental papilla for 20 seconds after isolation with cotton rolls. The surgical procedure takes nearly 30 minutes and the ozone application with the gingival dressing takes nearly 30 minutes so the whole working time is nearly 1 hour.

The laser group is split into two groups (split-mouth technique): with ozone application or without ozone application.

Laser parameters: Power: 2 W; Wavelength: 980 nm; Continuous mode CW.

The laser cutting session takes approximately 20 minutes, the ozone application takes nearly 15 minutes (no gingival dressing is applied) and the whole working time is approximately 35 minutes.

The follow-up appointments:
Clinical parameters and measures are re-evaluated in these sessions. Intra-oral photographs are taken. They take nearly 20 minutes.
Intervention typeProcedure/Surgery
Primary outcome measureGingival tissue enlargement measured using Gingival Overgrowth (GO), which has three degrees (0, 1, 2, 3), at baseline and after 15 days (immediately before gingival resection), 1 month and 3 months after resection
Secondary outcome measures1. Periodontal probing depth (PPD), defined as the distance from the free gingival margin to the bottom of the periodontal pocket. Measured using a periodontal probe (Williams) at baseline and after 15 days (immediately before gingival resection), 1 month and 3 months after resection.
2. Level of gingival inflammation is measured using the Gingival Index (GI) at baseline and after 15 days (immediately before gingival resection), 1 week, 2 weeks, 1 month and 3 months after resection.
3. Pain is measured using a visual analogue scale (VAS) on day 1, day 3, 1 week and 2 weeks after resection
4. Level of healing is measured using the Healing Index (HI), which has five degrees (1, 2, 3, 4, 5) at 1 week, 2 weeks and 1 month after resection
Overall study start date15/03/2022
Completion date25/10/2024

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit50 Years
SexBoth
Target number of participants30
Total final enrolment40
Key inclusion criteria1. Grade II-III inflammatory gingival hyperplasia that has not been improved after 15 days of professional and individual periodontal care
2. Pseudo-gingival pockets with a depth of 2 mm and above
3. Patient aged between 18-50 years old
4. Healthy patients without systemic diseases
Key exclusion criteria1. Pregnant women or those using oral contraceptives
2. Breastfeeding women
3. Smokers
4. Patients treated with nonsteroidal anti-inflammatory drugs and analgesics for 1 month
5. Patients prohibited from undergoing surgery or anesthesia, or patients that have uncontrolled systemic diseases
6. Bad restorations or prosthodontics in the gingival area
7. Localized gingival hyperplasia
8. Patients with drug or hormonal hyperplasia
Date of first enrolment14/07/2022
Date of final enrolment29/08/2024

Locations

Countries of recruitment

  • Syria

Study participating centre

Damascus University
Faculty of Dental Medicine
Oral Medicine Department
Mazzeh Highway
Damascus
4671
Syria

Sponsor information

Damascus University
University/education

Baramkeh
Damascus
4671
Syria

Phone +963 (0)1133923223
Email ap.srd@damascusuniversity.edu.sy
Website http://www.damascusuniversity.edu.sy
ROR logo "ROR" https://ror.org/03m098d13

Funders

Funder type

University/education

Damascus University
Government organisation / Universities (academic only)
Alternative name(s)
University of Damascus, جَامِعَةُ دِمَشْقَ, DU
Location
Syria

Results and Publications

Intention to publish date03/02/2025
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a peer-reviewed journal
IPD sharing planThe datasets will be generated and analyzed during the current study and will be available upon request from Dr Dana Hussen (danahussen95@gmail.com)

Editorial Notes

29/08/2024: Study's existence confirmed by Damascus University.