PubMed ID (PMID): 21716972Pages 342-344, Language: EnglishCoward, Trevor J. / Richards, Robin / Fenlon, Michael / Scott, Brendan J. J.A stereophotogrammetry technique is described that can be used to map the face following surgery for head and neck cancer. It enables the effects of obturators on facial form to be assessed and may have a wide variety of applications.