Your response in the WJO no. 1, 2004, to my questions relating to the prevention and treatment of “black triangles” between the teeth by means of mesiodistal stripping was enlightening and interesting reading. However, there may still remain some uncertainty among clinicians and patients regarding whether or not there can occur some permanent damage to the teeth and periodontium with interproximal enamel reduction. This is shown by the fact that in the same WJO issue as your answer, there was an interview with Dr Robert Vanarsdall, who maintains that interproximal enamel reduction in patients with a normal attachment apparatus should be avoided, particularly in the posterior regions. Apparently his monkey studies indicate that stripping may lead to loss of attachment, poor root proximity, and crestal alveolar bone loss. Are you aware of clinical or research information that relates to any actual damage done to the dentition and its supporting structures during properly performed stripping under optimal clinical conditions?