Modified Sling and Conventional Suture Techniques in Free Gingival Graft Operations

Not Applicable

Completed

• Conditions: Gingival Recession, Localized
• Interventions: Procedure: Conventional graft and conventional suture technique; Procedure: Gingival unit graft and conventional suture technique; Procedure: gingival unit graft+modified sling suture technique; Procedure: Conventional graft and modified sling suture technique

• Registration Number: NCT06197893
• Lead Sponsor: Bezmialem Vakif University

Brief Summary

The aim of this study is to investigate the effects of conventional suture (CS) and modified sling suture (MSS) techniques, applied in free gingival graft (FGG) surgery using gingival unit graft (GUG) and conventional graft (CG) techniques, on clinical parameters and graft dimensions.

Detailed Description

Background: The aim of this study is to investigate the effects of conventional suture (CS) and modified sling suture (MSS) techniques, applied in free gingival graft (FGG) surgery using gingival unit graft (GUG) and conventional graft (CG) techniques, on clinical parameters and graft dimensions.

METHODS: 52 individuals having Cairo Type 2 (RT2) and Type 3 (RT3) gingival recessions in mandibular anterior region were divided into four groups as a) GUG+MSS (n=13), b) GUG+CS (n=13), c) CG+MSS (n=13) and d) CG+CS (n=13). Keratinized gingival width (KGW), keratinized tissue thickness (KGT), relative gingival recession height (rGRH), and relative vestibule depth (rVD) measurements were recorded using a digital caliper and periodontal probe UNC 15. Dimensional changes (Δ) of the graft surface area (GSA) was determined by ImageJ software. All measurements were done at baseline and repeated 1st and 3rd months.

Study Timeline

• Study Start: 2022-03-15
• Primary Completion: 2022-12-22
• Study Completion: 2022-12-22
• Status Verified: 2023-12
• Study First Submitted: 2023-12-26
• Study First Submitted QC: 2023-12-26
• Study First Posted: 2024-01-09
• Last Update Submitted: 2024-01-09
• Last Update Posted: 2024-01-11

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

• Systemically healthy individuals
• <1 mm of attached gingiva on mandibular incisors
• PI and GI scores <1
• Patients who had not previously undergone soft tissue surgery in the relevant area

Exclusion Criteria

• Pregnant or lactating women
• Patients younger than 18 years old
• Mandibular incisors with having restoration, probing depth ≥ 3 mm, malposition and/or endodontic problem
• Maxillary premolars with gingival recession in the palatal area and/or prosthetic restoration

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
4. CG+CS	Conventional graft and conventional suture technique	The dissected conventional graft, as detailed experimental CS+MSS group, fixed recipient bed with conventional suture technique, as detailed experimental GUG+CS group.
2. GUG+CS	Gingival unit graft and conventional suture technique	The GUG was obtained from the maxillary premolar area, as detailed experimental GUG+MSS group. The dissected graft was fixed to the recipient site using conventional suture technique.
1. GUG+MSS	gingival unit graft+modified sling suture technique	The GUG was obtained from the maxillary premolar area. The dissected graft was fixed to the recipient site using a modified sling suture technique.
3. CG+MSS	Conventional graft and modified sling suture technique	Conventional graft dimensions were determined with aluminum foil and the foil was placed in the palatial region at the level of the maxillary premolars, at least 2 mm away from the free gingival margin of the adjacent teeth. The dissected graft was fixed to the recipient site with 5/0 polypropylene suture using a modified sling suture technique, as detailed experimental GUG+MSS group.

Primary Outcome Measures

Name	Time	Method
Graft shrinkage	baseline, 1-, 3-months after FGG surgery	The shrinkage of the graft area was calculated according to the differences between the graft area at baseline, 1st, 3rd months using ImageJ software.

Secondary Outcome Measures

Name	Time	Method
Keratinized tissue weight gain (KTW)	baseline, 1-, 3-months after FGG surgery	Alginate impressions of each participants were taken from mandibular teeth and an acrylic stent containing both mandibular canine-canine teeth was prepared. The measurements were made relatively with reference to the predetermined points on the stent. KTW was measured as the distance from the buccal midpoint of tooth between the free gingival margin and the alveolar mucosa.

Trial Locations

Locations (1)

Bezmialem Vakıf University; 🇹🇷 Istanbul, Turkey