Evaluating aerosol management in dental clinics during Covid-19

Evaluation of Aerosol in a Dental Clinic

PHASE4 · The University of Texas Health Science Center, Houston · NCT04659928

This study tests different methods to reduce the risk of Covid-19 for dental workers during procedures that create aerosols, like using special vacuum devices and mouth rinses.

Quick facts

PhasePHASE4
Study typeInterventional
Enrollment50 (estimated)
Ages18 Years and up
SexAll
SponsorThe University of Texas Health Science Center, Houston (other)
Locations1 site (Houston, Texas)
Trial IDNCT04659928 on ClinicalTrials.gov

What this trial studies

This study assesses the effectiveness of various external evacuation units and mouth rinses during aerosol-generating procedures in dental clinics. It aims to determine the risk level to dental practitioners when performing these procedures in the context of Covid-19. The interventions include high volume evacuation, extraoral vacuum aspirators, external evacuation devices, and hydrogen peroxide as a mouth rinse. The study will focus on procedures that involve prepping natural teeth and are scheduled for the first appointment of the day.

Who should consider this trial

Good fit: Ideal candidates for this study are patients requiring dental procedures that involve prepping natural teeth and can accommodate a longer appointment time.

Not a fit: Patients who do not require dental procedures or those with shorter appointment times may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance safety protocols for dental practitioners and reduce the risk of Covid-19 transmission during dental procedures.

How similar studies have performed: Other studies have explored aerosol management in healthcare settings, but this specific approach in dental clinics is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* prepping natural teeth at the appointment
* at least an hour long procedure
* procedure will be the first one in the morning

Where this trial is running

Houston, Texas

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Covid19

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.