Comparing two lasers for treating gingival overgrowth in patients who uses braces

ISRCTN ISRCTN17755133
DOI https://doi.org/10.1186/ISRCTN17755133
Secondary identifying numbers 3337
Submission date
30/04/2025
Registration date
12/05/2025
Last edited
12/05/2025
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
Gingival overgrowth continues to concern patients due to its effects on both aesthetic and functional aspects (such as speech and chewing), and in some cases, it may hinder the progress of orthodontic treatment and prevent the orthodontist from continuing their work.
Therefore, it is necessary to find an effective and comfortable treatment for our patients that ensures optimal control over the aesthetic and functional complications in patients suffering from orthodontics-induced gingival overgrowth.
This study aims to evaluate the effects of CO2 laser compared to the 450 nm diode laser by assessing the following indices:
gingival overgrowth index, mucosal scarring, periodontal pocket depth, clinical crown length, bleeding during and after the surgical procedure, pain, recurrence, operation time and healing.

Who can participate?
Patients with gingival overgrowth induced by fixed orthodontics.

What does the study involve?
We divided the patients into two groups, the first group was treated using a CO2 laser, and the second group using a 450nm Diode laser. The following variables were studied: gingival overgrowth, periodontal pocket depth, clinical crown length, gingival bleeding index, visual analog scale for pain, recurrence index, healing index, and operation time.

What are the possible benefits and risks of participating?
assisting the orthodontist with the orthodontic treatment while also treating gingival overgrowth.
No harmful side effects are expected .

Where is the study run from?
Damascus university, Faculty of dentistry (Syria)

When is the study starting and how long is it expected to run for?
September 2024 to September 2026

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Dr Rose Assaf
rose.assaf@damascusuniversity.edu.sy, roseassaf024@gmail.com

Contact information

Dr Rose Assaf
Public, Scientific, Principal Investigator

An Nasera
Damascus
-
Syria

Phone +963 936042721
Email roseassaf024@gmail.com

Study information

Study designInterventional randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)University/medical school/dental school
Study typeTreatment
Participant information sheet 47260 PIS.pdf
Scientific titleA comparative study between CO2 laser and the diode laser 450nm in the management of gingival overgrowth during orthodontic treatment
Study objectivesNull Hypothesis (H₀):
There are no statistically significant differences between the CO₂ laser group and the diode laser group in any of the research variables.

Alternative Hypothesis (H₁):
There are statistically significant differences between the CO₂ laser group and the diode laser group in all of the research variables.
Ethics approval(s)

Approved 05/09/2024, Research Ethics Committee-Faculty of Dentistry, Damascus University (Mazzeh highway, Damascus, -, Syria; +963 1133926091; Dean.dent@damascusuniversity.edu.sy), ref: 3337

Health condition(s) or problem(s) studiedGingival overgrowth during orthodontic treatment
InterventionThe sample was divided into two groups: the first group was treated using a CO2 laser, and the second group using a 450nm Diode laser. The following variables were studied: gingival overgrowth, periodontal pocket depth, clinical crown length, gingival bleeding index, visual analog scale for pain, recurrence index, healing index, and operation time.
Intervention typeProcedure/Surgery
Primary outcome measure1. The clinical crown length, gingival overgrowth index, and periodontal pocket depth will be measured over the following periods: before intervention, after 15 days, 1 month, 3 months, and 6 months.
2. The pain index will be measured over the following periods: day of treatment, after 1 day, 2 days, 3 days, and after 1 week.
3. The bleeding index will be measured during the surgical procedure and after the procedure.
4. Operation time will be measured separately for each group.
5. The clinical healing index will be measured over the following periods: after 1 week and after 1 month.
6. The scar will be evaluated over the following periods: after surgery, after 1 month, 3 months, and 6 months.
7. The recurrence index will be measured over the following periods: after 1 month, 3 months, and 6 months.
Secondary outcome measuresThere are no secondary outcome measures
Overall study start date05/09/2024
Completion date05/09/2026

Eligibility

Participant type(s)Patient
Age groupMixed
SexBoth
Target number of participants30
Key inclusion criteria1. Patients treated with fixed orthodontics
2. Patients with gingival overgrowth
Key exclusion criteria1. Pregnant and breastfeeding women.
2. Smokers.
3. Patients taking medications that cause gingival enlargement, such as (calcium channel blockers, anticonvulsants, immunosuppressants), and patients taking blood thinners or bisphosphonate medications.
3. Patients with diabetes.
4. Patients with infectious diseases such as (hepatitis, acquired immunodeficiency virus).
5. Endocrine disorder.
Date of first enrolment05/09/2024
Date of final enrolment28/02/2026

Locations

Countries of recruitment

  • Syria

Study participating centre

Damascus University
Syria, Damascus, Rabwa Neighborhood
Damascus
-
Syria

Sponsor information

Damascus University
University/education

Mazzeh Highway
Damascus
-
Syria

Phone +963 993303359
Email ap.srd@damascusuniversity.edu.sy
Website http://www.damascusuniversity.edu.sy
ROR logo "ROR" https://ror.org/03m098d13

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date
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 generated during and/or analysed during the current study will be available upon request from (Dr. Rose Assaf, roseassaf024@gmail.com).

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet in Arabic 02/05/2025 No Yes

Additional files

47260 PIS.pdf
in Arabic

Editorial Notes

01/05/2025: Trial's existence confirmed by Damascus University.