Oral care in the bedbound patient: position matters as much as technique

Oral care in the bedbound patient is treated as a comfort measure, whereas it has clinical implications concerning an organ far from the mouth: the lung.

The link is documented. Oral biofilm in a patient with impaired swallowing can be aspirated into the airway, and oral bacteria are among those isolated in aspiration pneumonia.

It follows that oral care in this patient is not a cosmetic matter but a respiratory prevention measure, and it is an argument that changes the priority carers give it.

The first practical element is position, and it is got wrong more often than technique. A supine patient during oral care risks inhaling water and debris.

Correct positioning means the trunk raised where possible, or the head turned to one side if raising is not practicable, so that fluids collect in the cheek rather than travelling towards the pharynx.

The carer stands behind or to the side, not in front, because that is the position allowing the head to be supported and the arch to be seen.

Water should be used in minimal quantity. A barely damp brush and suction if available; in the home setting, gauze to collect rather than rinsing.

As for tools, a small-headed soft brush remains the first choice. Moistened gauze cleans the mucosa but does not remove biofilm from tooth surfaces, and does not replace brushing.

Chlorhexidine mouthwashes have a role here more than elsewhere, because in many of these patients complete mechanical removal cannot be achieved. They should be applied with gauze rather than rinsed.

Dry mouth is almost constant, from medication, mouth breathing and reduced fluid intake, and it must be managed because absent saliva removes the principal natural defence.

The mucosa should be hydrated with specific products, avoiding glycerine which dehydrates over time, and the lips protected to prevent painful fissures that then prevent opening.

One last consideration concerns the carer. Instructions must be simple and realistic: a ten-step procedure does not get carried out, whereas three clear steps repeated twice a day do.

In summary: oral biofilm is linked to aspiration pneumonia, positioning prevents inhalation during the procedure, water should be minimal, gauze does not replace the brush, dry mouth must be managed, and instructions to carers must be brief to be followed.