NCT07680491

Brief Summary

This prospective, observational study evaluates the efficacy and safety of H42 non-surgical treatment for peri-implant pockets. The trial involves 56 patients, with 28 subjects receiving the H42 treatment and 28 acting as a control group to monitor soft tissue healing and bone level changes. Clinical outcomes focus on Pocket Probing Depth (PPD) and Silness and Löe Plaque Index (PI) measured at baseline, 1 month, and 3 months. Gingival inflammation, pain intensity on a 0-10 NRS scale, and absence of infection are monitored at baseline, 7, 14, and 21 days, and at 1 and 3 months. Additionally, a five-point tissue assessment evaluates color, suppuration, granulation tissue, bleeding, and incision margins. Radiographic analysis at baseline and 3 months uses standardized periapical x-rays to measure bone level, intra-bony defect height, width, and angulation. Safety is assessed through the continuous registration of adverse events.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
56

participants targeted

Target at P25-P50 for all trials

Timeline
14mo left

Started Dec 2025

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress36%
Dec 2025Sep 2027

Study Start

First participant enrolled

December 3, 2025

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

June 24, 2026

Completed
8 days until next milestone

First Posted

Study publicly available on registry

July 2, 2026

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2027

Last Updated

July 2, 2026

Status Verified

June 1, 2026

Enrollment Period

1.8 years

First QC Date

June 24, 2026

Last Update Submit

July 1, 2026

Conditions

Keywords

H42

Outcome Measures

Primary Outcomes (5)

  • Pocket Probing Depth (PPD)

    The distance measured from the base of the pocket to the most apical point on the gingival margin, and it will be measured with an electronic Florida probe at controlled pressure

    At 1 month and 3 months in comparison with the baseline value

  • Plaque Index (PI)

    For each tooth, the four-point scale Silness and Löe Plaque Index is used (Score 0: Excellent; 3: poor)

    At 1 month and 3 months in comparison with the baseline

  • Degree of inflammation

    Not inflamed, mild inflamed, Moderately inflamed, Very inflamed

    Baseline and 7 days, at 14 days, at 21 days, at 1 month and 3 months of follow-up

  • NRS scale

    Numeric Rating Scale is a simple, reliable tool used to measure pain intensity on a scale from 0 to 10 (0: no pain; 10: maximum pain)

    Baseline and 7 days, at 14 days, at 21 days, at 1 month and 3 months of follow-up

  • Absence of infection

    Clinical evaluation to assess the absence of infection, specifically defined as the absence of suppuration (pus formation), at the treated site as evaluated by the Investigator.

    Baseline and 7 days, at 14 days, at 21 days, at 1 month and 3 months of follow-up

Secondary Outcomes (2)

  • Tissue assessment

    Baseline and 7 days, at 14 days, at 21 days, at 1 month and 3 months of follow-up

  • Radiographic image (x-ray)

    Baseline and 3 months follow-up

Study Arms (2)

H42 treated group

28 patients treated with ultrasonic treatment and manual curettes + H42®

Control group

28 patients only with ultrasonic treatment and manual curettes

Eligibility Criteria

Age25 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Adult patients diagnosed with peri-implantitis and treated at the Department of Stomatology, Faculty of Dentistry, University of Seville, Spain. Participants are recruited from patients seeking care at the university dental clinic and are allocated to the study groups according to the study protocol and predefined inclusion and exclusion criteria. The study evaluates the adjunctive use of H42 hydrogel in the non-surgical treatment of peri-implantitis using a case-control design.

You may qualify if:

  • Men or women with age ≥ 25 and ≤ 65 years.
  • Subjects affected by peri-implant pockets with probing depth (PD) in the range between 6 to 8 mm.
  • Each subject can have from 1 to 5 defects.
  • Subjects willing to provide signed informed consent to clinical investigation participation.

You may not qualify if:

  • Use of aspirin and antiplatelet agents a week before treatment.
  • Subjects smokers ≥ 10 cigarettes per day.
  • Subjects presenting current or previous bleeding disorders.
  • Subjects taking or having indications for anticoagulant therapy.
  • Concomitant treatments or procedures to improve gum health over the last six months before the clinical investigation enrolment, such as HA gel treatments, injection of fillers, and surgery.
  • Subjects suffering from infectious diseases, including herpes simplex infection, active hepatitis, or human immunodeficiency virus.
  • Subjects with dental aesthetic surgery in the preceding 12 months before the clinical investigation enrolment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty of Dentistry, University of Seville

Seville, 41009, Spain

RECRUITING

Related Publications (7)

  • Herrera D, Berglundh T, Schwarz F, Chapple I, Jepsen S, Sculean A, Kebschull M, Papapanou PN, Tonetti MS, Sanz M; EFP workshop participants and methodological consultant. Prevention and treatment of peri-implant diseases-The EFP S3 level clinical practice guideline. J Clin Periodontol. 2023 Jun;50 Suppl 26:4-76. doi: 10.1111/jcpe.13823. Epub 2023 Jun 4.

    PMID: 37271498BACKGROUND
  • Schwarz F, Derks J, Monje A, Wang HL. Peri-implantitis. J Periodontol. 2018 Jun;89 Suppl 1:S267-S290. doi: 10.1002/JPER.16-0350.

    PMID: 29926957BACKGROUND
  • Berglundh T, Armitage G, Araujo MG, Avila-Ortiz G, Blanco J, Camargo PM, Chen S, Cochran D, Derks J, Figuero E, Hammerle CHF, Heitz-Mayfield LJA, Huynh-Ba G, Iacono V, Koo KT, Lambert F, McCauley L, Quirynen M, Renvert S, Salvi GE, Schwarz F, Tarnow D, Tomasi C, Wang HL, Zitzmann N. Peri-implant diseases and conditions: Consensus report of workgroup 4 of the 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions. J Periodontol. 2018 Jun;89 Suppl 1:S313-S318. doi: 10.1002/JPER.17-0739.

    PMID: 29926955BACKGROUND
  • Rokaya D, Srimaneepong V, Wisitrasameewon W, Humagain M, Thunyakitpisal P. Peri-implantitis Update: Risk Indicators, Diagnosis, and Treatment. Eur J Dent. 2020 Oct;14(4):672-682. doi: 10.1055/s-0040-1715779. Epub 2020 Sep 3.

    PMID: 32882741BACKGROUND
  • Robitaille N, Reed DN, Walters JD, Kumar PS. Periodontal and peri-implant diseases: identical or fraternal infections? Mol Oral Microbiol. 2016 Aug;31(4):285-301. doi: 10.1111/omi.12124. Epub 2015 Sep 15.

    PMID: 26255984BACKGROUND
  • Derks J, Tomasi C. Peri-implant health and disease. A systematic review of current epidemiology. J Clin Periodontol. 2015 Apr;42 Suppl 16:S158-71. doi: 10.1111/jcpe.12334.

    PMID: 25495683BACKGROUND
  • Caton JG, Armitage G, Berglundh T, Chapple ILC, Jepsen S, Kornman KS, Mealey BL, Papapanou PN, Sanz M, Tonetti MS. A new classification scheme for periodontal and peri-implant diseases and conditions - Introduction and key changes from the 1999 classification. J Clin Periodontol. 2018 Jun;45 Suppl 20:S1-S8. doi: 10.1111/jcpe.12935.

    PMID: 29926489BACKGROUND

MeSH Terms

Conditions

Peri-Implantitis

Condition Hierarchy (Ancestors)

Periodontal DiseasesMouth DiseasesStomatognathic Diseases

Central Study Contacts

Marco Morroni, PhD

CONTACT

Anna Di Bona, PhD

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 24, 2026

First Posted

July 2, 2026

Study Start

December 3, 2025

Primary Completion (Estimated)

September 30, 2027

Study Completion (Estimated)

September 30, 2027

Last Updated

July 2, 2026

Record last verified: 2026-06

Data Sharing

IPD Sharing
Will not share

Locations