title: Cementum as an age determinant: A forensic view.
abstract: BACKGROUND
  Forensic age estimation (FAE) defines an expertise in forensic medicine, which aims to define in the most accurate way to determine the unknown chronological age of the person involved in judicial or legal proceedings. Dental cementum is a vital tissue which demonstrates continuous apposition throughout the life of the tooth. This appositional changes of cementum helps in approximation of age inforensic investigations.
  
  
  OBJECTIVE
  To correlate age by measuring the overlap or coronal migration of thecementum at thecementoenamel junction (CEJ) and the thickness of the cementum at the apical third of the root.
  
  
  METHODS
  A hundred freshly extracted teethfrom patients ranging from ages 17-55were longitudinal buccolingually ground sectioned using a mounted lathe wheel and Arkansas stone.
  
  
  METHODS
  100 freshly extracted teeth of age group ranging from 17-55 years were taken. These teeth were longitudinally ground sectioned to a thickness of 8-10μm using a mounted lathe wheel and Arkansas stone. Afterwards the teeth were examined under a light microscope using a micrometer eyepiece for measuring the overlap or coronal migration of the cementum at the CEJ and the thickness of the cementum at the apical one-third of root.
  
  
  METHODS
  Measurements of the overlap or the coronal migration of the cementum at the CEJ and the thickness of the cementum at the apical one-third of the root are correlated with age.
  
  
  RESULTS
  Results of the study indicated that the cementum at the CEJ migrated coronally during theaging process in case of the impacted teeth. There is also a significant increase in the thickness of the cementum at the apical onethird of rootin the case of both the impacted and erupted teeth.
  
  
  CONCLUSIONS
  Approximation of age by measuring overlap or coronal migration of the cementum at the CEJ and the thickness of the cementum at the apical one-third of the rootsets new alleys in FAE.
authors.affiliation: Department of Oral and Maxillofacial Pathology, Kamineni Institute of Dental Sciences, Telangana, India.
authors.forename: Godishala Swamy Sugunakar
authors.initials: GS
authors.lastname: Raju
authors.affiliation: Department of Oral and Maxillofacial Pathology, Kamineni Institute of Dental Sciences, Telangana, India.
authors.forename: Muddana
authors.initials: M
authors.lastname: Keerthi
authors.affiliation: Department of Oral and Maxillofacial Pathology, Kamineni Institute of Dental Sciences, Telangana, India.
authors.forename: Surapaneni Rateesh Kumar
authors.initials: SR
authors.lastname: Nandan
authors.affiliation: Department of Oral and Maxillofacial Pathology, Kamineni Institute of Dental Sciences, Telangana, India.
authors.forename: Thokala Madhusudan
authors.initials: TM
authors.lastname: Rao
authors.affiliation: Department of Oral and Maxillofacial Pathology, Kamineni Institute of Dental Sciences, Telangana, India.
authors.forename: Pavan G
authors.initials: PG
authors.lastname: Kulkarni
authors.affiliation: Department of Oral and Maxillofacial Pathology, Kamineni Institute of Dental Sciences, Telangana, India.
authors.forename: Dorankula Shyam Prasad
authors.initials: DS
authors.lastname: Reddy
keywords: Cementoenamel junction; forensic age estimation; micrometer eyepiece