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Changes in Soft Tissue Thickness Following Multiple Coronally Advanced Tunnel (MCAT) vs Vestibular Incision Subperiosteal Tunnel Access (VISTA)

NCT07200258 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 44

Last updated 2026-02-13

No results posted yet for this study

Summary

This randomized clinical trial will compare two surgical methods for treating multiple adjacent gingival recessions (types RT1 and RT2): the Modified Coronally Advanced Tunnel (MCAT) and the Vestibular Incision Subperiosteal Tunnel Access (VISTA). Both methods will use connective tissue grafts (CTG), which are the best way to cover roots.

The main objective is to use three-dimensional (3D) digital volumetric analysis to look at how the thickness of soft tissue has changed after six and 12 months. Secondary outcomes include root coverage, esthetic outcomes, gingival health parameters, hypersensitivity, patient satisfaction, and wound healing quality.

There will be 44 volunteers, and they will be randomly assigned to one of the two surgical methods. Under the same settings, periodontal specialists in training will undertake the procedures at the Universidad Complutense de Madrid. There will be follow-up evaluations at different times up to 12 months after the procedure. The results of this study will help determine whether remote incisions via the VISTA technique offer improved outcomes compared to the MCAT technique.

Conditions

  • Gingival Recession

Interventions

PROCEDURE

Vestibular Incision Subperiosteal Tunnel Access (VISTA)

Remote incisions will be performed in the test group. The VISTA technique will be performed as described by Zadeh (Zadeh, 2011). After administration of local anaesthesia, an access incision will be made in the vestibulum to permit elevation of a broad subperiosteal tunnel. A specialized periosteal elevator will be used to create the tunnel by dissecting beneath the periosteum, extending at least one tooth beyond the recession defects and under each papilla, without surface incisions at the gingival margin. The connective tissue graft will be inserted and positioned beneath the tunnel through the incision. A coronally anchored suturing technique will be used. This technique mean placing a horizontal mattress suture using a 6.0 suture with at approximately 2 to 3 mm apical to the gingival margin of each tooth, covering the width of the tooth. If keratinized gingiva is present, the suture will be placed within the band of keratinized gingiva.

PROCEDURE

Modified Coronally Advanced Tunnel (MCAT)

In the MCAT group, the surgical approach will follow the technique described by Aroca et al. (2010). After sulcular incisions made without releasing incisions, a full-thickness muco-periosteal tunnel will be carefully elevated beyond the mucogingival junction and under adjacent papillae using tunneling instruments. The root surfaces will be planed, and a subepithelial connective tissue graft will be harvested from the palatal donor site and inserted into the tunnel. Suspended horizontal mattress sutures will be placed around the contact points to advance and stabilize the flap in a position coronal to the cemento-enamel junction (CEJ) (previous composite at the contact point if necessary). Postoperative care will be identical to that described for the VISTA group.

Sponsors & Collaborators

  • Universidad Complutense de Madrid

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-10-15
Primary Completion
2027-07-31
Completion
2028-07-31

Countries

  • Spain

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07200258 on ClinicalTrials.gov