Modified Coronally Advanced Tunnel for Mandibular Lingual Root Coverage

Enrolling by invitation · Not applicable

Conditions studied: Gingival Recession, Mucogingival Deformity - Insufficient Keratinized Tissue

In brief

This study will follow adults who have gum recession on the tongue side of the lower teeth. Participants will receive a gum surgery called the Modified Coronally Advanced Tunnel technique with a connective tissue graft taken from the roof of the mouth. The study will include 20 participants and will follow them for up to 24 months after surgery. The main outcome is how much of the exposed root is covered 6 months after surgery. The study will also measure gum thickness, gum width, tooth sensitivity, healing, patient comfort, satisfaction, and three-dimensional soft tissue changes using intraoral scans.

Key facts

Study ID

NCT07590960

Run by

University of Pittsburgh

People needed

20

Starts

2026-07-23

Expected to finish

2028-12-01

Last updated by the study team

2026-07-29

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Age 18-65 years
• Single or multiple Cairo RT1 lingual gingival recessions ≥3 mm on mandibular incisors, canines, or premolars
• Identifiable CEJ on the lingual aspect
• Vital uniradicular teeth
• Full-mouth plaque score <20%
• Smokes less than 10 cigarettes per day
• Adequate mouth opening for lingual access
• Sufficient palatal donor tissue thickness (≥2 mm at 2-3 mm from gingival margin)

You may not qualify if…

• Positive urine pregnancy test or self-reported lactation
• Smoker more than 10 cigarettes per day
• Uncontrolled systemic diseases, at the discretion of the PI (diabetes HbA1c >7%, cardiovascular disease, immunocompromised)
• Use of medications affecting periodontal tissues (phenytoin, calcium channel blockers, immunosuppressants)
• Use of blood thinners
• Previous root coverage surgery at treated sites
• Teeth with cervical restorations or caries on lingual surfaces
• Inadequate attached gingiva (<1 mm)
• Prominent lingual frenum attachment requiring frenectomy

Where it is running

• University of Pittsburgh School of Dental Medicine — Pittsburgh, Pennsylvania, United States

Full record on ClinicalTrials.gov

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