Cureus · 2024
A Crossover Trial of a Novel Toothbrushing Method for Prevention of Aspiration Pneumonia: Toothpaste With Povidone-Iodine and Moisturizing Gel Mixture.
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Funahara Madoka, Imakiire Akira, Funahara Ryuichiro, Oyama Haruka, Soutome Sakiko, Nakamichi Atsuko
Аннотация
INTRODUCTION: Toothbrushing, during which dental plaque is brushed off into the oral cavity, can increase the risk of aspiration pneumonia in older adults and intubated patients.
METHODS: This study examined brushing methods to prevent the spread of bacteria in the oral cavity. Six participants who required assistance with brushing received toothbrushing from a dental hygienist. Toothbrushing was performed using a toothbrush soaked in water (Water group), gel (Gel group), povidone-iodine solution (PV-I group), or a mixture of a moisturizing gel and povidone-iodine gel (PV-I+Gel group). The number of bacteria in the saliva before and after brushing was measured using a delayed real-time polymerase chain reaction, which can quantify the number of viable bacteria.
RESULTS: In the Water group, salivary bacterial counts increased significantly after brushing. The bacterial counts in the Gel and PV-I groups increased slightly after brushing; however, the increase was less than that observed in the Water group. In the PV-I+Gel group, the number of bacteria in the saliva was significantly reduced after brushing.
CONCLUSIONS: In patients at risk for aspiration pneumonia, toothbrushing should be performed with a mixture of PV-I and a moisturizing gel. This method is a novel approach that reduces the risk of aspiration pneumonia in intubated patients and older adults requiring care, and its clinical application is expected in the future.
METHODS: This study examined brushing methods to prevent the spread of bacteria in the oral cavity. Six participants who required assistance with brushing received toothbrushing from a dental hygienist. Toothbrushing was performed using a toothbrush soaked in water (Water group), gel (Gel group), povidone-iodine solution (PV-I group), or a mixture of a moisturizing gel and povidone-iodine gel (PV-I+Gel group). The number of bacteria in the saliva before and after brushing was measured using a delayed real-time polymerase chain reaction, which can quantify the number of viable bacteria.
RESULTS: In the Water group, salivary bacterial counts increased significantly after brushing. The bacterial counts in the Gel and PV-I groups increased slightly after brushing; however, the increase was less than that observed in the Water group. In the PV-I+Gel group, the number of bacteria in the saliva was significantly reduced after brushing.
CONCLUSIONS: In patients at risk for aspiration pneumonia, toothbrushing should be performed with a mixture of PV-I and a moisturizing gel. This method is a novel approach that reduces the risk of aspiration pneumonia in intubated patients and older adults requiring care, and its clinical application is expected in the future.