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A new two dimensional facial contour tracing method | ||
| Journal of baghdad college of dentistry | ||
| Article 1, Volume 22, Issue 4, 2010, Pages 62-66 | ||
| Author | ||
| Emad A. Salman | ||
| Abstract | ||
| ABSTRACTBackground: Having an accurate, reproducible, clinically applicable, and ethical quantitative method for tracingfacial contour is an asset in studying the effects of various surgical approaches or drug regimes on postoperative andinfectious swellings in oral surgery. The aim of this study is to develop and test a method and an apparatus that canbe used in clinical trials to trace and measure the facial contour in a coronal section in the face.Materials and Methods : Our method relies on posing the head in a cephalostat in a well standardized reproducibleway and using a narrow beam from a laser diode to trace selected evenly spaced points on the contour of aselected coronal section in the face and project them as illuminated points on a graph paper, the illuminated pointscan be joined by a line to produce a graph which represents the traced contour, retracing contour graphs made insuccessive sessions can be used to assess objectively progression of facial swellings. The method and the tracingapparatus were tested on four carefully selected swelling-free subjects to determine the method's inherent as well asposing error.Results : Results showed that the method's inherent error was so small that can be neglected (0.2%), head posingerror of the method was only 0.56%.Conclusions : Our method is relatively accurate, ethical, and clinically applicable, it can be used to trace contour offacial swellings in the course of their progression under the influence of various surgical approaches or drug regimes.Keywords : Laser beam, facial contour tracing. (J Bagh Coll Dentistry 2010;22(4):62-66). | ||
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