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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05252260
Other study ID # 2018/120
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date October 1, 2019
Est. completion date June 23, 2020

Study information

Verified date February 2022
Source Abant Izzet Baysal University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Randomized controlled parallel designed clinical study aimed to compare vestibule depth gain and dimensional changes of wound area in individuals who underwent vestibule deepening surgery using diode laser and conventional technique


Description:

52 systemically healthy patients aged between 18 and 53 years (10 males and 42 females) with inadequate vestibular depth and insufficient attached gingiva in the anterior mandible were included in this randomized examiner- and patient-blinded, parallel design study. Following nonsurgical periodontal treatment, patients were divided into 4 groups as follows: a) diode laser (L); b) diode laser+Low level laser therapy (LLLT); c) conventional surgery and conventional surgery+LLLT, and vestibule deepening was applied to all subjects either with scalpel or laser assisted. Scalpel surgery was performed as Clark's vestibuloplasty. A local anesthetic was administered bilaterally to the mental area. Then, a horizontal incision was prepared at the mucogingival junction with a scalpel blade 15c. All the muscle fibers over the periosteum were resected carefully. Following, the mucosal flap was sutured to the depth of the vestibule sulcus with 4-0 polypropylene suture material, once every 4 mm, from a total of 5 regions. Laser assisted vestibuloplasty was performed using diode laser. Local anesthesia was achieved in the same manner as the control group (scalpel surgery). Laser irradiation was performed in continuous wave mode, using a 980 nm diode laser with a power of 1.5W, 600 μm optical fiber. After adequate local anesthesia, ablation was started from the mucogingival junction and performed with horizontal movements parallel to the bone. The muscle attachments were slowly released until the deepest point of the wound site was 5 mm. The mucosal flap was not stabilized with sutures and periodontal dressing was not used to cover the wound area.


Recruitment information / eligibility

Status Completed
Enrollment 52
Est. completion date June 23, 2020
Est. primary completion date June 7, 2020
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Patients were> 18 years old and of both genders, - Patients presenting inadequate vestibular depth and insufficient attached gingiva on incisors in the mandibular anterior region - Full mouth plaque index (PI) and gingival index (GI) scores < 1 - The patients had to be systemically healthy and nonsmokers Exclusion Criteria: - Patients who had Miller class II and more advanced gingival recession in the region of the lower anterior incisors and interproximal attachment loss - Patients who were taking medications that would interfere with the wound-healing process, pregnant or lactating women, - Patients who had previously undergone periodontal surgery in the study area, who had orthodontic therapy and using fixed/removable dentures involving lower anterior teeth were excluded from the study.

Study Design


Intervention

Procedure:
Diode Laser
Vestibuloplasty surgery was performed via diode laser. Laser irradiation was performed in continuous wave mode, using a 980 nm diode laser with a power of 1.5W, 600 µm optical fiber.
Conventional Surgery
A local anesthetic was administered bilaterally to the mental area and waited for 5 min for diffusion of the solution. Then, a horizontal incision was prepared at the mucogingival junction with a scalpel blade no. 15c. All the muscle fibers over the periosteum were resected carefully. Following, the mucosal flap was sutured to the depth of the vestibule sulcus with 4-0 polypropylene suture material, once every 4 mm, from a total of 5 regions.
Other:
Low level laser therapy (LLLT)
Vestibuloplasty surgery was performed via diode laser. Following, LLLT was applied in continuous wave mode for 1 minute without contacting the tissue, using a phototherapy probe (power output, 0.5W; total energy of 6 J / cm²) at a distance of 1-2 mm from the tissue. LLLT was repeated immediately after the surgery, on the 1st, 3rd and 7th days

Locations

Country Name City State
Turkey Bolu Abant Izzet Baysal University, Faculty of Dentistry, Department of Periodontology Bolu

Sponsors (1)

Lead Sponsor Collaborator
Abant Izzet Baysal University

Country where clinical trial is conducted

Turkey, 

Outcome

Type Measure Description Time frame Safety issue
Other Wound Healing Scores of the surgical area The healing of the surgical area was scored by using an index determined by Landry et al and compared between the groups in the evaluated time periods (1:worst and 5:excellent) Wound healing scores on 3rd day, Wound healing scores on 7th day; Wound healing scores on 14th day; Wound healing scores on 28th day
Other Pain and Loss of Function Scores of the study participants Patients were asked to rate their postoperative pain and functional changes (discomfort during eating and speaking) on visual analog scales (VAS) and compared between the groups in the evaluated time periods (1: minimum and 10: maximum). Minimum scores mean better results. Pain and Loss of Function on 1st day; Pain and Loss of Function on 7th day after the operation
Other Change in horizontal wound dimension in the surgical area The linear dimensions of the wound in the horizontal direction were measured with a digital caliper over the projection on the endodontic file and recorded on the patient form. Change from Baseline horizontal dimension at 1 week; Change from Baseline horizontal dimension at 2 week; Change from Baseline horizontal dimension at 4 week
Other Scar Tissue Formation Scores in the surgical area The scar tissue in the operation area was evaluated clinically and compared between the study groups (0: minimum scar formation; 8 maximum scar formation) minimum scar formation is better Scar Tissue Formation at 1st month
Primary Vestibule Depth Measurement Change (millimeter) Measurements were performed with the help of a plastic stopper placed on the endodontic canal instrument, with reference to the guides created on the acrylic stent which was prepared before the surgery Change from Baseline vestibule depth measurement at 1 week; Change from Baseline vestibule depth measurement at 2 week; Change from Baseline vestibule depth measurement at 1 month
Secondary Re-epithelization Area of the operation region Areas where there is little or no gingival epithelium were evaluated by applying a plaque staining agent to the surgical area. Clinical photographs of the stained gingiva were taken immediately after the operation and on the 3rd, 7th, and 14th days after the operation, using pre-prepared acrylic stents. Images were taken at standard magnification and distance on a digital camera (four optical zooms, 20cm) and the head of each patient was positioned to standardize the images. Incomplete epithelialized areas were measured using an image analysis software by the investigator blinded to the groups Change from baseline re-epithelization Area at 3 day; Change from baseline re-epithelization Area at 7 day; Change from baseline re-epithelization Area at 14 day
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