Actively Recruiting

Phase Not Applicable
Age: 18Years +
All Genders
ID07185191

Evaluation of Safety and Clinical Benefits of Polynucleotide RDM36 for Treating Interdental Papilla and Gum Tissue Deficits

Led by Mastelli S.r.l · Updated on 2026-05-12

40

Participants Needed

1

Research Sites

N/A

Total Duration

On this page

Sponsors

M

Mastelli S.r.l

Lead Sponsor

C

Clinical Research Technology S.r.l.

Collaborating Sponsor

AI-Summary

What this Trial Is About

Researchers are evaluating the safety and clinical performance of the medical device RDM36, which contains high purification polynucleotides (PN HPT), in the treatment of periodontal gingival contraction and Black Triangles Syndrome (BTS). The study aims to assess how well RDM36 can restore interdental papilla and marginal soft tissue deficits, providing mechanical protection and promoting tissue hydration, fibroblast vitality, and collagen deposition as a minimally invasive alternative to surgical and orthodontic approaches. Participants will be randomly assigned to receive either RDM36 or a saline solution as a control. Both treatments involve two perpendicular infiltrations (buccal and palatal) of 0.2 ml each. The study includes a 26-week treatment period, during which the effects on the black triangle lesions and gingival tissue will be monitored using photographic documentation, 2D and 3D imaging, and colorimetric evaluation. Throughout the study, participants will undergo evaluations of periodontal health using plaque index, bleeding on probing, recession, and probing depth measurements. Patient-reported outcomes on aesthetic improvement will be collected through visual analogue, global aesthetic improvement, and Likert scales. Safety will be assessed by monitoring for adverse device effects. The total participation duration covers enrollment through the 26 weeks of treatment, with assessments at regular intervals.

CONDITIONS

Brief Title

Evaluation of the Safety and Performance of the Medical Device RDM36 in the Treatment of Periodontal Gingival Contraction and in Black Triangles Syndrome (BTS)

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Able to provide written informed consent for the study
  • Male or female participants
  • Aged 18 years or older at the time of consent
  • Have at least one anterior interdental papilla recession in the smile zone as per Jemt's classification
  • Teeth near the papilla recession must have a contact point
  • No signs of periodontal disease
  • Good oral hygiene with full mouth plaque and bleeding scores less than 10%
  • No plaque or bleeding on probing at the treatment site
  • No retentive factors at the treatment site
Not Eligible

You will not qualify if you...

  • Active periodontitis
  • Acute infection in the oral cavity or upper respiratory tract
  • Pregnancy, breastfeeding, or planning to conceive up to 120 days after treatment ends
  • Smoking more than 10 cigarettes per day
  • Bleeding disorders or use of blood clotting medications
  • Systemic diseases affecting periodontal health
  • Autoimmune diseases
  • Known or suspected allergy to seafood products
  • Psychiatric or behavioral disorders or substance abuse interfering with study cooperation
  • Infra-bony defects with pockets or papilla contraction visible by X-ray or probing

AI-Screening

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Implementation

Duration - Single treatment session at baseline

Participants receive two perpendicular infiltrations (buccal and palatal) of either the medical device RDM36 or saline solution.

1 baseline visit (in-person)

Treatment

Duration - 26 weeks (± 2 weeks)

Participants are monitored for safety and clinical performance of the treatment over 26 weeks.

1 visit at 6 weeks and additional visits up to week 26 for assessments

Trial Site Locations

Total: 1 location

1

Azienda Socio Sanitaria Territoriale (A.S.S.T.) degli Spedali Civili di Brescia

Brescia, Italy, Italy, 25123

Actively Recruiting

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Research Team

M

Molinari

How is the study designed?

Study Type

INTERVENTIONAL

Masking

DOUBLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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