The goal of this split-mouth pilot study is to study the effect of two different suturing techniques in root coverage using coronally advanced flap tunnel in multiple adjacent recession cases to see which technique will give superior outcomes in term of mean root coverage percentage, and root coverage esthetic score after 3-months.

The main questions it aims to answer are:

• Does a suturing technique gives superior mean root coverage percentage over another?
• Does a suturing technique gives superior root coverage esthetic score?

Researcher will compare between V-reverse suturing technique and anchored sling suture to see which will result in superior mean root coverage percentage, and root coverage esthetic score after 3-months.

Participants will:

• Come in for a first visit to check your gum health, check eligibility and to be provided with scaling and polishing if needed.
• Come in for surgery and clinical measurements.
• Participant will be asked to complete post-operative questionnaire for 14 days.
• Re-evaluated after 1 week and suture removal at 2 weeks.
• Follow-up after 1 and 3 months.

This split-moth pilot study is designed to assess the comparative effectiveness of V-reverse suturing technique(test) and anchored sling suturing technique (Control) in patients with bilateral multiple adjacent gingival recession. The primary aim of the study is to compare the test and control groups in terms of the obtained mean root coverage (mRC) and Root coverage esthetic score (RES) in 3 months. The secondary aims are to compare the two groups in terms of Complete root coverage (CRC), Keratinized tissue width (KTW), Gingival thickness (GT), Recession depth (REC), Probing depth (PD), and Patient-reported outcomes and satisfaction.

At surgery day (T0) baseline measurements and photographs will be taken for all participants and they will be treated with coronally advanced tunnel with autogenous connective tissue graft harvested from the palate for both sides. Each side will be randomly allocated for either V-reverse suturing technique (test) or anchored sling suturing technique (control) to advance the tunnel coronally. At the end of the surgery postoperative instructions will be delivered to all patients in a written and oral manner, in conjunction with a medical prescription, and post-operative questionnaire to fill for the next 14 days to capture patient-reported experience measures (PREMs).

Participants will be re-evaluated at 1 week and at 2 weeks sutures will be removed.

At (T1) 1 month after surgery the following parameters will be recorded : bleeding on probing (BOP), plaque index (PI), and recession depth.

At (T2) 3 month after surgery the following parameters will be recorded : bleeding on probing (BOP), plaque index (PI), recession depth, probing depth (PD), clinical attachment loss (CAL), gingival thickness (GT), keratinized tissue width (KTW), Root coverage esthetic score (RES), mean root coverage% (mRC%), and complete root coverage(cRC "YES/NO")..

Visual analog scale from 0 - 10 (10- very dissatisfied, 0- very satisfied) at each visit after surgery was taken to assess patients overall satisfaction, and another visual analog scale from 0 - 10 (10- worst pain, 0- no pain) to assess patients perceptions of pain.

Photographs will be taken at each visit, all indices will be recorded by a calibrated examiner, and oral hygiene instructions will be reinforced at each visit.

The trial will be conducted in accordance with the Declaration of Helsinki (2013) and Good Clinical Practice (GCP) guidelines. Approval has been granted by the Institutional Review Board (IRB) of Jordan University of Science and Technology. Written informed consent will be obtained from all participants prior to enrollment. Adverse events will be documented, monitored, and reported according to IRB requirements.

Inclusion Criteria:

• Age ≥ 18 years
• Periodontally and systemically healthy;
• Good plaque control (FMPS < 20%)
• Presence of two quadrants exhibiting multiple (2 or more sites) adjacent RT1 or RT2 gingival recession ≥ 2 mm in at least one site.
• Non-smoker.

Exclusion Criteria:

• Smoking
• Pregnant or lactating women;
• Untreated periodontitis;
• Systemic disorders with compromised healing potential;
• Use of medications (immuno-suppressants, phenytoin, or anything else that might affect soft tissue healing);
• Undergoing radiotherapy;
• History of mucogingival surgery.
• Presence of severe tooth malposition, rotation, or super-eruption.
• Presence of root caries or inadequate prosthetic restorations;
• Persistence of uncorrected gingival trauma from toothbrushing.

We plan to share de-identified individual participant data (IPD) including demographics, primary and secondary outcome measures, and adverse events. Data will be made available beginning 12 months after publication of the primary results, and will be accessible to qualified researchers upon reasonable request, subject to data-sharing agreements and IRB approval.

12 months after publication of primary results and will remain available for 5 years via a controlled access repository upon request and data use agreement.

Qualified researchers affiliated with academic institutions, healthcare organizations, or nonprofit research centers will be able to request access to the de-identified individual participant data (IPD) and supporting documents, including the Study Protocol, Statistical Analysis Plan (SAP), and Analytic Code.

Requests for access will be reviewed by the study sponsor or data access committee to ensure appropriate use and ethical standards.

Approved users will receive access via a secure online data repository, after signing a data use agreement that outlines terms of use, privacy protections, and publication rights.