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Completed

NCT Number: NCT05813444

Gingival Phenotype Prevalence of Lower Incisors and Associated Risk Factors : a Cross-sectional Study

Several types of gingival phenotype can be diagnosed in the general population and their evaluation is an essential clinical criterion in periodontal practice, whether the periodontal therapies are preventive or curative, non-surgical or surgical. Moreover, several authors have shown that the gingival phenotype varies from one dental sector to another, hence the interest of a meticulous and targeted diagnostic approach in relation to the established therapeutic objectives. To date, the gingival phenotype has been not studied extensively in the mandibular incisal area. Therefore, it seems relevant to conduct an observational cross-sectional study on a cohort of patients in good general health and with a healthy and intact periodontium to assess the prevalence of the gingival phenotype in this area. The secondary objective is to highlight the associated intrinsic and extrinsic risk factors for thin gingival phenotype, to anticipate a risk of gingival recession and to propose an early personal therapy.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

University Hospital of Nice

Nice, 06200, France

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • age (18 years old or older)
  • dental student on the university hospital of Nice
  • social security affiliate
  • systemically healthy
  • healthy and intact periodontium
  • informed consent.

Exclusion criteria

  • pregnancy
  • under any regular medical treatment
  • active periodontal disease
  • presence of plaque
  • enduring orthodontic treatment
  • periodontal surgery in the mandibulary anterior region
  • non consent patient
  • patient under judgment trials.

Treatment and study plan

Primary outcomes

  1. Gingival phenotype prevalence

    Time frame: 18 months

    Assessment of gingival thickness (Kan et al 2015) and keratinised tissue height of the lower incisors with UNC-15 periodontal probe (Hu-Freidy, USA) and clinical photography.

Secondary outcomes

  1. Associated risk factors for thin gingival phenotype

    Time frame: 18 months

    Age, gender, smoking habit, orthodontic background, oral hygiene habit, oral ventilation, dysfunction, facial typology, chin shape, visibility of vascularisation and root convexity through the gum, gingival recession (Cairo), frenal insertion and skin type.

Sponsors and collaborators

Lead sponsor

Centre Hospitalier Universitaire de Nice

Other

Registry information

Official study title

Gingival Phenotype Prevalence of Lower Incisors and Associated Risk Factors in French Dental Students Population : a Cross-sectional Study

Important dates

Study start
2022
Primary completion
2023
Study completion
2023
First posted
Apr 14, 2023
Registry last updated
Feb 17, 2025

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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