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NCT Number: NCT07597616

Periodontal Status in Patients With Oral Lichen Planus

This case-control study will enroll 176 patients age- and sex- matched at the Oral Medicine Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome. There will be two groups: The control group will consist of 88 healthy patients enrolled among those routinely attending the dental outpatient clinic. An additional 88 patients diagnosed with OLP will form the case group. Both groups will undergo standard dental examinations, including periodontal probing. The primary objective is to evaluate whether patients with OLP present a higher prevalence and severity of periodontitis compared to healthy subjects. Secondary objectives include the assessment of gingivitis prevalence and RT1 gingival recessions in OLP patients compared with controls. Periodontal status will be assessed using major clinical indices and classified according to the 2017 AAP/EFP case definition. The study aims to contribute evidence on the shared immune-inflammatory mechanisms underlying both conditions, with potential clinical implications for the integrated periodontal management of OLP patients.

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Key information

Conditions

Oral Lichen Planus Lichen Planus Lichen Planus, Oral Lichenoid Eruptions Mouth Diseases Periodontal Diseases Periodontitis Skin Diseases Skin Diseases, Papulosquamous Skin and Connective Tissue Diseases Stomatognathic Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • OLP group (case)

Age ≥ 18 years Clinical and histopathological diagnosis of OLP according to WHO criteria (2021)

Control group

Age ≥ 18 years Absence of clinical signs of OLP

Exclusion criteria

  • Both groups

Oral lichenoid lesions (OLL): oral lichenoid contact reactions (OLCR), lichenoid drug reactions (LDR), lesions associated with food/substances (e.g. cinnamon) Oral lesions associated with graft-versus-host disease (GVHD) History of haematopoietic stem cell transplantation (HSCT) Pregnancy Oncologic patients (including oral cancers) Smokers Diabetes mellitus Obesity Metabolic syndrome Immunosuppressive therapy Medications causing gingival hyperplasia

Control group only

Immune-mediated inflammatory diseases with oral involvement (e.g. psoriasis, systemic or discoid lupus erythematosus) Autoimmune oral diseases other than OLP

OLP group only

Immunosuppressive therapy for conditions other than OLP Autoimmune oral diseases other than OLP

Treatment and study plan

Primary outcomes

  1. Rate of periodontitis in OLP patients compared with age- and sex-matched healthy controls, classified according to the 2017 AAP/EFP staging and grading system

    Time frame: From 20 of May to 15 of June

Sponsors and collaborators

Lead sponsor

Catholic University of the Sacred Heart

Other

Registry information

Official study title

Studio Retrospettivo Monocentrico di Una Coorte di Pazienti Affetti da Lichen Planus Orale: Caratteristiche, comorbilità e Fattori di Rischio Per la Trasformazione Maligna

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
May 19, 2026
Registry last updated
May 22, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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