title: A comparative study of overlay generation methods in bite mark analysis.
abstract: OBJECTIVE
  To evaluate the best method of overlay generation out of the three methods, i.e., manual, photocopying, and computer assisted method.
  
  
  METHODS
  Impressions of maxillary and mandibular arches of 25 individuals participating in the study were made and dental study models were prepared. Overlay production was done by manual, photocopying, and computer assisted methods. Finally, the overlays obtained by each method were compared.
  
  
  RESULTS
  Kruskal Wallis ANOVA H test was used for the comparison of manual, photocopying, and computer assisted overlay generation methods. H value being highest in case of computer assisted overlays, thus, making it the best method of overlay generation out of the three methods.
  
  
  CONCLUSIONS
  We conclude that the method of computer assisted overlay generation is the best among the three methods used in our study.
authors: Department of Oral Medicine and Radiology, Mahatma Gandhi Post Graduate Institute of Dental Sciences, (Government of Puducherry Institution), Indira Nagar, Gorimedu, Pondicherry, India.
authors: Mihir
authors: M
authors: Khatri
authors: Mariappan Jonathan
authors: MJ
authors: Daniel
authors: Subramanian Vasudevan
authors: SV
authors: Srinivasan
keywords: Bite mark; computer assisted method; manual method; overlay; photocopying method
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