Actively Recruiting
Efficacy of Nonsurgical Versus Surgical Management of Black Triangles: A Randomized Clinical Trial
Led by Ain Shams University · Updated on 2026-04-23
30
Participants Needed
1
Research Sites
4 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
Researchers are evaluating different treatment methods for interdental black triangles, which are gaps caused by the loss of gum tissue between teeth. These gaps not only affect appearance but can also cause food to get stuck and lead to gum problems. This study compares surgical and nonsurgical treatments to find the most effective way to manage these black triangles in adults aged 18 to 50 years with mild to moderate papillary loss. The study randomly assigns 30 participants to one of three treatment groups: surgical reconstruction using the tube grafting technique, papillary augmentation with hyaluronic acid injections, or a restorative approach using injection molding composite to reshape teeth. Surgical treatment involves grafting tissue to rebuild the gum area, while the nonsurgical options include a filler injection to increase gum volume and a composite resin technique to reshape teeth surfaces and reduce the gap. Participants will undergo assessments before treatment and at 3 and 6 months afterward. Researchers will measure the black triangle’s surface area and height, along with periodontal health indicators like plaque and bleeding. Patient satisfaction with the esthetic results will be recorded using a Visual Analog Scale. The study aims to provide evidence on the effectiveness and stability of these treatments to guide dental care decisions.
CONDITIONS
Brief Title
Clinical Evaluation of Different Treatments for Interdental Black Triangles
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Adults aged 18 to 50 years
- Presence of interdental black triangle classified as Nordland and Tarnow Class I or Class II
- Radiographic evidence of adequate interdental bone support, defined as 45 mm distance from the contact point to the alveolar crest
- Systemically healthy individuals with no medical conditions affecting wound healing
- Patients willing to participate in the study and attend follow-up visits at 3 and 6 months
You will not qualify if you...
- Patients with systemic diseases that may impair wound healing
- Presence of teeth with acute periapical pathology
- Presence of periodontal pockets or active periodontal disease
- Pregnant or lactating women
- Patients with parafunctional habits (e.g., bruxism)
- Smokers, alcoholics, or drug abusers
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Single treatment session
Participants receive one of three treatments to manage interdental black triangles: surgical reconstruction using the tube grafting technique, hyaluronic acid injections to augment tissue volume, or restorative modification of tooth contours with the injection molding composite technique.
1 visit (in-person)
Duration - 6 months
Participants attend follow-up visits to assess clinical parameters, take clinical photographs, and evaluate esthetic satisfaction after treatment.
2 visits at 3 months and 6 months post-treatment (in-person)
Trial Site Locations
Total: 1 location
1
Faculty of Dentistry, King Salman International University
Cairo, Egypt
Actively Recruiting
Research Team
F
Fatma E.A. Hassanein, PHD
F
Fatma E.A. Hassanein, PHD
How is the study designed?
Study Type
INTERVENTIONAL
Masking
SINGLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
3
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