Food Was Collecting in the Side of His Mouth He Could Not Feel

Quick answer: After a stroke, food and plaque accumulate on the weakened side because the tongue and cheek no longer clear it. That causes rapid decay and gum disease — and, more seriously, it raises the risk of aspiration pneumonia, which is one of the leading causes of death after stroke.

The call

His daughter made the appointment. He had had a stroke fourteen months earlier and had not seen a dentist since, and she had noticed a smell.

Shlomo, 74, from Old Beit Shemesh, had left-sided weakness affecting his arm and face, and some difficulty swallowing. He was living at home with his wife, walking with a stick, and speaking clearly if slowly.

What we found

The asymmetry was immediate and complete.

The right side — his unaffected side — was in reasonable condition. Moderate plaque, a few old restorations, gums a little inflamed.

The left side was a different mouth. Food debris packed around every tooth and in the buccal sulcus, where it had evidently been sitting for a long time. Heavy plaque and calculus. Seven areas of decay, several extensive. Severe gum inflammation. His lower left denture segment had not been worn since the stroke because he could not manage it.

Why one side. Three mechanisms compound:

• The tongue and cheek no longer clear food. Normally they sweep the sulcus constantly, without conscious effort. With facial and lingual weakness, food simply stays.
• Reduced sensation means he did not know it was there. He could not feel the pouching.
• One-handed brushing. He was right-handed and had lost function in his left arm, and reaching the left side of the mouth with the right hand is the harder direction.

The part that is not about teeth. Aspiration pneumonia is among the leading causes of death in the year following a stroke. The mechanism involves inhaling oropharyngeal secretions, and the bacterial load in those secretions is directly related to oral hygiene. Multiple studies have found that structured oral care programmes in stroke and care-home populations reduce pneumonia incidence measurably.

So mouth care after a stroke is not a comfort measure. In a patient with dysphagia, it is a respiratory intervention — and it is very often nobody's assigned job after discharge.

He had been given rehabilitation for walking, for his arm, and for speech. Nobody had mentioned his mouth.

What we did

Restorative treatment, staged over four visits, all in the morning when he was less fatigued, all kept to forty minutes.

Five teeth restored with glass ionomer — chosen for fluoride release and tolerance of a field that is difficult to keep dry. Two teeth were unrestorable and were extracted, in consultation with his doctor about his medication.

We treated him upright rather than reclined, given the swallowing difficulty, and used high-volume suction continuously.

The hygiene programme, which is where the durable benefit is:

• An electric brush, which removes the need for the wrist and arm movement he cannot make.
• A brush handle adapted with a foam grip for his right hand.
• His wife trained, directly, on cleaning the left buccal sulcus — with her standing behind him and his head supported, which gives far better access and control than working from the front.
• A gauze wipe of the left sulcus after every meal, which took thirty seconds and did more than anything else.
• Chlorhexidine gel applied on a brush, not as a rinse — rinsing is unsafe with impaired swallowing.
• High-fluoride toothpaste, smeared and not rinsed.

We wrote to his family doctor and his speech and language therapist, both to report the findings and to flag that the oral care component of his rehabilitation had not been picked up by anyone.

Three-monthly recalls, which for this risk level is the correct interval.

The outcome

At three months the left sulcus was clean and the gum inflammation had largely resolved. At twelve months there was no new decay.

He has had no chest infections since. That is one patient and proves nothing on its own, and it is the outcome the whole programme is aimed at.

His denture was remade in a simplified design he can insert one-handed.

What to do if this happens to you

1. Book a dental review within a few months of a stroke. It is routinely missed.
2. Check the weak side after every meal. Food pouches there and nobody feels it.
3. Get the carer taught directly, standing behind, with the head supported.
4. Use an electric brush. It removes most of the dexterity demand.
5. Do not use rinses if swallowing is impaired. Gels applied on a brush are safer.
6. Tell the rehabilitation team. Mouth care belongs in the plan and usually is not in it.

Caring for someone after a stroke? Ramat Beit Shemesh Urgent Dental Care trains carers as part of the appointment. 055-985-8845 · WhatsApp https://wa.me/972559858845 · Harav Kook 28/1, Beit Shemesh

This is a composite clinical story. It reflects a presentation we see regularly in Beit Shemesh and Ramat Beit Shemesh; the name and details are illustrative and are not those of a real patient.