Sir, I heartily agree with E. Shawkat (Wikipedia use, BDJ 2009; 206: 117) - Wikipedia should not be used for anything but a general interest tool. It is certainly not to be cited as an authority as anyone may state anything on its pages that they believe is true, regardless of evidence.

For example, if you look under 'tooth eruption', it is stated that periodontal ligament cross linking and contraction causes the tooth to erupt. This was suggested as a possible factor in tooth eruption some 30 years ago, but has long since been discredited. It is now widely accepted that tooth eruption is effected through vascular changes whereas to date, there is no mention of this on Wikipedia (unless Professor Moxham has time to update the site before this letter is published?)