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Not yet recruiting NCT06981871

Prevalence of Lower and Upper Incisor Periodontal Phenotypes and Risk Indicators.

— Observational Gingiva Phenotype

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Evaluation of the gingival phenotype of the incisors in the upper and lower jaws.
Who it may be relevant to
Registry conditions: Gingiva, Phenotype. Basic parameters: from 18 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
France
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

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Official title

Prevalence of Lower and Upper Incisor Periodontal Phenotypes and Risk Indicators in French Dental Students: a Bicentric Cross-sectional Study

Overview

The determination of the periodontal phenotype is an essential part of the periodontal diagnostic process, which must guide not only treatment but also prognosis (Kim et al. 2020). This determination is based on the clinical assessment of 3 individual variables: gingival height/thickness and alveolar bone cortical thickness. Although these anatomical characteristics are genetically determined, they are also influenced by numerous acquired, endogenous or exogenous factors that can act at a general and/or local level. The periodontal phenotype is therefore specific to an individual and its 3 components vary over time according to the dental sectors and sites of each individual. For example, the morphology of this phenotype varies according to whether the gingiva is thick or thin, high or reduced, and the bone cortex is thick or thin, with all possible combinations. Clinicians need to know the distribution of these different types of phenotypes, particularly in the aesthetic areas they are concerned with, in order to better identify the most fragile ones in the face of the multiple daily stresses to which the periodontium may be subjected: muscular force, dental plaque, oral hygiene manoeuvres, parafunctionality, dental procedures.... However, studies on the prevalence of the periodontal phenotype are limited and mainly concern Asian, Indian and American populations, with very few studies on European populations. Main objective: To assess the prevalence of periodontal phenotypes in the upper and lower incisors of French subjects, according to tooth type and at the individual level. Secondary objective: Identification of potential risk indicators in relation to the type of periodontal phenotype."

Interventions

  • Other Evaluation of the gingival phenotype of the incisors in the upper and lower jaws
    Assessment of gingival thickness (Kan et al 2015) and keratinised tissue height of the incisors with UNC-15 peridontal probe (Hu-Freidy, USA) and clinical photography.

Primary outcome measures

  • Prevalence of gingival phenotypes (gingival thickness ) [Time frame: At the inclusion]
  • Prevalence of gingival phenotypes (keratinised tissue height) [Time frame: At the inclusion]
  • Prevalence of gingival phenotypes (Photography) [Time frame: At the inclusion]
Secondary outcome measures (2)
  • Associated risk indicators for thin gingival phenotype ( Clinical description) [Time frame: At the inclusion]
  • Associated risk indicators for thin gingival phenotype ( orthodontic and facial characteristics ) [Time frame: At the inclusion]

Eligibility criteria

Inclusion criteria

  • Age (18 years old or older),
  • Dental student on the university hospitals of Nice and Nancy.
  • Social security affiliate.
  • Systemically healthy.
  • Healthy and intact periodontium.
  • Informed consent.

Exclusion criteria

  • Pregnancy.
  • Under any regular medical treatment.
  • Active periodontal disease.
  • Enduring orthodontic treatment.
  • Periodontal surgery in the mandibulary anterior region.
  • Non consent patient.
  • Patient under judgment trials.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Study design

Observational model
Cohort

Study locations

France · 1 center
  • CHU NICE — Nice

Identifiers

NCT: NCT06981871 · 25Odonto02

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗