title: Correlation of Lip Prints with Gender, ABO Blood Groups and Intercommissural Distance.
abstract: BACKGROUND
  In forensics, the mouth allows for a myriad of possibilities. Lip print on glass or cigarette butt found at crime scenes may link to a suspect. Hence, a dentist has to actively play his role in personal identification and criminal investigation.
  
  
  OBJECTIVE
  To investigate the uniqueness of the lip print patterns in relation to gender, ABO blood groups and intercommissural distance (ICD).
  
  
  METHODS
  The study was conducted on 208 randomly selected students. The lip print of each subject was obtained and pattern was analyzed according to Tsuchihashi classification. The blood group and ICD at rest position was recorded for each.
  
  
  RESULTS
  The study showed that Type II (branched) lip pattern to be most prominent. The B+ blood group was the most common in both genders and the ICD is higher in males. The lip print pattern does not show any correlation between ABO blood groups, gender, and ICD.
  
  
  CONCLUSIONS
  The lip print pattern shows no correlation with gender, ABO blood groups, or ICD. Further studies with larger samples are required to obtain statistical significance of this correlation.
authors.affiliation: Departments of Oral Medicine and Radiology, Surendra Dental College and Research Institute, Sri Ganganagar, Rajasthan, India.
authors.forename: Pradhuman
authors.initials: P
authors.lastname: Verma
authors.forename: Suresh K
authors.initials: SK
authors.lastname: Sachdeva
authors.forename: Kanika Gupta
authors.initials: KG
authors.lastname: Verma
authors.forename: Swati
authors.initials: S
authors.lastname: Saharan
authors.forename: Kompal
authors.initials: K
authors.lastname: Sachdeva
keywords: Blood groups; Competent lips; Intercommissural distance; Lip prints
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