Hypoglycaemic attacks in patients with insulin-treated diabetes are un
pleasant and inconvenient at best, but may constitute a medical emerge
ncy at their most severe. This article provides the dental practitione
r with an insight into the physiological processes which occur during
such attacks, with clues to the recognition of the signs of impending
hypoglycaemia. Steps which may be taken to avoid hypoglycaemia with th
e various forms of treatment are then considered against a background
of their suitability for use in dental practice.