Risk of Contamination by COVID-19 During Oral Care With Aerosolization

Summary

The sudden Covid-19 pandemic has led all healthcare workers to adapt to an unprecedented situation by continuing to provide care while protecting themselves and their patients. Medical care with aerosolization systems is particularly of risk because of the strong propagation of the droplets they generate, especially during oral care. Considering the high risk of transmission of the SARS-CoV-2 virus in dental structures remain essential and still very challenging. The need to put in place care procedures to protect the nursing staff and patients is definitely more than necessary. Dental protection equipments against this emergent virus have progressively integrated daily practice, but, to the knowledge of the investigators, no study has precisely evaluated their efficiency.

The main objective of this study is to estimate the risk of dental practitioners to be contaminated by SARS-CoV-2 during dental procedures with or without aerosolization procedures.

For this, after their informed consent, vaccinated dental practitioners or practitioners with a positive covid serological tests of the dental department of Charles Foix hospital will receive individually forty to fifty COVID+ patients. COVID + patients will be included a maximum of one week after the diagnosis of the pathology. Patient care will be determined and performed according to standard practice as part of their standard management and without interference with the study. The usual measures to protect caregivers. The included patients will undergo an oral dental procedure either with aerosolisation or not. Then, SARS-CoV 2 samples will be collected using viral swabs on different spots, followed by detection and quantification by PCR. Swabbing will be achieved on:

* The facial skin, nasal, ocular and oral mucosa of the practitioners.
* The protection equipment of the practitioners (FFP2 masks, visors,surgical calot,gloves) .
* The environment (dental Chair, surgical light, turbine, contra-angle, on the ground..) The presence of viral loads in areas used by COVID + patients will be evaluated by PCR after swabbing.

The study will provide insight into the risk of SARS-CoV 2 contamination for practitioners performing dental procedures in COVID + patients. This risk will be assessed at the level of the facial skin and oral mucous membranes, which are the doors of entry of the virus.

This study will thus make it possible to assess the protective capacity of the protection protocol implemented in investigators' department in this epidemic situation. This will be assessed depending on whether or not aerosolization is used, its type and the nature of the ventilation in the operating room.

Conditions

• Contamination by COVID 19 During Oral Care

Interventions

PROCEDURE

Oral care with/without aerosolization

These treatments involve instruments that produce aerosolization: ultrasonic scaler, rotary instrumentation for caries care, dental extraction, tooth polishing. These care correspond to examinations of the oral cavity, intraoral X-rays or even periodontal pocket probing.

Sponsors & Collaborators

• Institut National de la Santé Et de la Recherche Médicale, France

  collaborator OTHER_GOV

• Assistance Publique - Hôpitaux de Paris

  lead OTHER

Study Design

Allocation

NA

Purpose

PREVENTION

Masking

NONE

Model

SINGLE_GROUP

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2021-03-22

Primary Completion

2022-01-28

Completion

2022-01-28

Countries

• France

Study Locations