Evaluation of palatal rugae pattern in establishing identification and sex determination in Nalgonda children


Rani Thabitha
Rajendra Reddy
M Manjula
N Sreelakshmi
A Rajesh
Vinay Kumar


Background: Establishing individual identification of a decedent only by dental means is a mammoth task in forensic odontology. Palatal rugae′s uniqueness, its resistance to heat, and stability throughout life have been proved by its use as an alternative aid in individual identification where comparison of fingerprints and other records is difficult. Aims and Objectives: The aim of the present study was to analyze the role of palatal rugoscopy in personal identification and sex determination of Nalgonda pediatric population. Materials and Methods: The study group consisted of 100 children having mixed dentition within the age range of 8-11 years, residing in Nalgonda district. Palatal rugae pattern, shape of the incisive papillae, length of the median palatal raphae, and shape of the dental arches were analyzed using Chi-square and Mann-Whitney tests between males and females. Results: Wavy and curved patterns appeared to be most prevalent in both males and females but with no significant difference. The number of primary rugae in females and secondary rugae in males, on left side of the palate, was significantly more than their counterparts (P < 0.05). When rugae unification was observed, diverging type was significantly more in males than in females. Parabolic dental arch form, elliptical type of incisive papilla, and medium length of median palatal raphae was observed in majority of the subjects. Conclusion: The present study hypothesizes the uniqueness of the rugae in personal identification as no two palates showed similar type of rugae in either of the genders. The rugae pattern also contributes minimally towards sex determination as there was no significant difference observed between the two variables.


How to Cite
Rani Thabitha, Rajendra Reddy, M Manjula, N Sreelakshmi, A Rajesh, & Vinay Kumar. (2015). Evaluation of palatal rugae pattern in establishing identification and sex determination in Nalgonda children. Journal of Forensic Dental Sciences, 7(3), 232–237. https://doi.org/10.4103/0975-1475.172447


  1. English WR, Robinson SF, Summitt JB, Oesterle LJ, Brannon RB, Morlang WM. Individuality of human palatal rugae. J Forensic Sci 1988;33:718‑26.
  2. Caldas IM, Magalhaes T, Afonso A. Establishing identity using cheiloscopy and palatoscopy. Forensic Sci Int 2007;165:1‑9.
  3. Sassouni V. Palato print, physioprint and roentgenographic cephalometry as new methods in human identification(Preliminary report). J Forensic Sci 1957;2:428‑42.
  4. Lysell L. Plicae palatinae transversae and papillae incisiva in man; a morphologic and genetic study. Acta Odontol Scand 1955;13:135‑7.
  5. Harrison A. The palatal rugae in man. Proc Acad Nat Soc 1889;6:245.
  6. Kapali S, Townsend G, Richards L, Parish T. Palatal rugae pattern in Australian Arborigines and Caucasians. Aus Dent J 1997;42:129‑33.
  7. Thomas CJ, Kotze TJ. The palatal rugae pattern: Anew classification. J Dent Assoc S Afr 1983;38:153‑7.
  8. Filho EM, Helena SP, Arsenio SP, Suzana MC. Palatal rugae patterns as bioindicator of identification in forensic dentistry. RFO 2009;14:227‑33.
  9. Testut L. Tratado de Anatomia Humana. Barcelone: S alvat Editores; 1944.
  10. Allen H. The palatal rugae in man. Dent Cosm 1889;31:66‑80.
  11. Winslow JB. Exposition anatomique de la structure du corps humain 1732;4:681.
  12. Santorini JD. Septeemdecim Tabulae, Parmae; 1775.
  13. Patil MS, Patil SB, Acharya AB. Palatine rugae and their significance in clinical dentistry: A review of the literature. J Am Dent Assoc 2008;139:1471‑8.
  14. Goria C. Le rughe del palato in speciale rapporto coll anthropolgia criminale e la psichiatria. 1911. Cited by: Lysell L. Plicae palatinae transerversae and papilla incisiva in man. Acta Odontol Scand 1955;13:5‑137.
  15. Sognnaes RD. Forensic stomatology (third of three parts). N Engl J Med 1977;296:197‑203.
  16. Jacob RF, Shalla CL. Postmrtem identification of edentulous deceased: Denture tissue surface anatomy. J Forensic Sci 1987;32:698‑702.
  17. Limson KS, Julian R. Computerized recording of the palatal rugae pattern and an evaluation of its application in forensic identification. J Forensic Odontostomatol 2004;22:1‑4.
  18. Shetty M, Premalatha K. Study of palatal rugae pattern among the student population in Mangalore. J Indian Acad Forensic Med 2011;33:112‑4.
  19. Bharat ST, Kumar GR, Dhanapal R, Saraswathi T. Sex determination by discriminant function analysis of palatal rugae from a population of coastal Andhra. J Forensic Dent Sci 2011;3:58‑62.
  20. Indira A, Gupta M, David MP. Usefulness of palatal rugae patterns in establishing identity: Preliminary results from Bengaluru city, India. J Forensic Dent Sci 2012;4:2‑5.
  21. Dhoke M, Osato S. Morphological study of the palatal rugae in Japanese. 1. Bialteral differences in the regressive evolution of the palatal rugae. JPN J Oral Biol 1994;36:126‑40.
  22. Surekha R, Anila K, Reddy VS, Hunasgi S, RaviKumar S, Ramesh N. Assessment of palatal rugae patterns in Manipuri and Kerala population. J Forensic Dent Sci 2012;4:93‑6.
  23. Abdellatif AM, Awad SM, Hammad SM. Comparative study of palatal rugae shape in two samples of Egyptian and Saudi children. Pediatric Dent J 2011;21:123‑8.
  24. Nayak P, Acharya AB, Padmini AT, Kaveri H. Difference in the palatal rugae shape in two populations of India. Arch Oral Biol 2007;52:977‑82.
  25. Kotrashetti VS, Hollikatti K, Mallapur MD, Hallikeremath SR, Kale AD. Determination of palatal rugae patterns among two ethnic populations of India by logistic regression analysis. J Forensic Leg Med 2011;18:360‑5.
  26. Kumar S, Vezhavendhan N, Shanthi V, Balaji N, Sumathi MK, Vendhan P. Palatal rugoscopy among puducherry population. J Contemp Dent Pract 2012;13:401‑4.
  27. Shetty SK, Kalia S, Patil K, Mahima VG. Palatal rugae pattern in Mysorean and Tibetan populations. Indian J Dent Res 2005;16:51‑5.
  28. Fahmi FM, Al‑Shamrani SM, Talic YF. Rugae pattern in a Saudi population sample of males and females. Saudi Dent J 2001;13:92‑5.
  29. van der Linden FP. Changes in position of posterior teeth in relation to ruga points. Am J Orthod 1978;74:142‑61.
  30. Saraf A, Bedia S, Indrukar A, Degwekar S, Bhowate R. Rugae patterns as an adjunct to sex differentiation in forensic identification. J Forensic Odontostomatol 2011;29:14‑9.