You performed root canal treatment on me. The inflammation recurred, so the procedure had to be repeated. The condition has now settled, but the gum next to the treated tooth bleeds at the slightest touch (when brushing or flossing). Is there any way to heal or strengthen the gum?

Root canal treatment and gum bleeding on stimulation in the interdental space usually do not have a common cause. The gum bleeds because of constant irritation by bacterial plaque. The main question is why it bleeds more at this site than at other locations. Most often these are spaces that are more difficult to clean. The gum in the interdental spaces between premolars and molars usually bleeds more than between incisors, because cleaning at the front is easier and quicker. Given that the tooth has already undergone root canal treatment, there is probably some extensive restoration on the crown. The restoration may be damaged, deficient or porous. A small piece of hard dental tissue may have broken off. All these problems cause greater plaque accumulation in the interdental space and stronger irritation of the gum.
The affected interdental space needs to be cleaned more thoroughly and, if the bleeding does not stop despite this, the restoration on the existing dental crown should be replaced, repaired or modified.

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