[Analysis of some iatrogenic injuries during manual endodontic treatment].

Some of various iatrogenic diseases, during manual endodontic treatments, are analysed, from detailed clinical instances. Discussion leads to insist upon some classical and original ways of prevention. From general point of view, it is unavoidable to realize with gentleness, never forcing, endodontic proceedings. Deep perception of internal dental morphology is quite necessary and must be respected during treatment. Besides, histo-pathological modifications of parietal dentine have to be known, not only from intellectual but also from tactile point of view. Each practitioner will progressively improve.