# Effectiveness of a Chlorine Dioxide Spray on Dental Plaque and Respiratory Pathogens in Institutionalized Elders

> **NCT03533335** · PHASE4 · COMPLETED · sponsor: **The University of Hong Kong** · enrollment: 228 (actual)

## Conditions studied

- Oral Hygiene
- Frail Elderly
- Nursing Homes
- Chlorhexidine

## Interventions

- **OTHER:** Oral spray (chlorhexidine spray, chlorine dioxide spray, sterile water spray)

## Key facts

- **NCT ID:** NCT03533335
- **Lead sponsor:** The University of Hong Kong
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2014-06-01
- **Primary completion:** 2016-12-31
- **Final completion:** 2017-12-31
- **Target enrollment:** 228 (ACTUAL)
- **Last updated:** 2018-05-23


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03533335

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03533335, "Effectiveness of a Chlorine Dioxide Spray on Dental Plaque and Respiratory Pathogens in Institutionalized Elders". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT03533335. Licensed CC0.

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