Dentinal fragment samples were collected using Gates Glidden Drills: #5 for a depth of 0–100 µm and #6 for a depth of 100–200 µm (500 r⋅min −1, 1 N, electric motor K Driller Endo Plus).

A substance often used to disinfect root canals was injected incorrectly and caused an unusual cutaneous reaction in a 16-year-old girl during endodontic treatment, according to a case report ...

The case report was published on February 20 in the Journal of Endodontics. This latest report is the seventh reported case of an adverse reaction to an intramuscular injection of calcium hydroxide.