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Indian Journal of Forensic Odontology 19(1):p 13-16, Jan - June 2026. | DOI: 10.21088/ijfo.0974.505X.19126.2
Original Article
Reliability and Accuracy of Palatal Rugoscopy as a Tool for Gender Identification in Orthodontic Patients
Seema Gupta, Namit Nagar, Adeel Ahmed Bajjad
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Attribution-Non-commercial 4.0 International (CC BY-NC 4.0)This license enables reusers to distribute, remix, adapt, and build upon the material in any medium or format for noncommercial purposes only, and only so long as attribution is given to the creator.
Indian Journal of Forensic Odontology 19(1):p 13-16, Jan - June 2026. | DOI: 10.21088/ijfo.0974.505X.19126.2
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Received : April 03, 2026
Accepted : May 04, 2026
Published : June 30, 2026
Abstract
Background: Palatal rugoscopy is a reliable forensic tool for human identification due to the uniqueness and stability of palatal rugae. However, orthodontic treatment, especially involving palatal appliances, may alter rugae morphology, potentially affecting its accuracy in gender identification. This study aimed to evaluate the reliability and diagnostic accuracy of palatal rugoscopy for sex determination in orthodontic patients. Methods: A cross-sectional analytical study was conducted on 360 participants divided into three groups: non-orthodontic controls, orthodontic patients without palatal appliances, and those treated with palatal appliances. Rugae patterns were assessed using Lysell and Thomas & van Wyk classifications. Statistical analysis included ANOVA, chi-square test, ROC analysis, and logistic regression. Results: Significant sexual dimorphism was observed in controls, with higher rugae counts in females (p < 0.05). Diagnostic accuracy was highest in controls (86.7%, AUC = 0.91), reduced in orthodontic patients without appliances (74.2%), and lowest in those with palatal appliances (61.7%) (p < 0.001). Palatal appliances significantly reduced rugae count and increased asymmetry, affecting sex prediction. Conclusions: Orthodontic treatment, particularly with palatal appliances, compromises the reliability of rugoscopy for gender identification. Caution is advised when applying this method in forensic cases involving orthodontically treated individuals.
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Cite this article
Licence:
Attribution-Non-commercial 4.0 International (CC BY-NC 4.0)This license enables reusers to distribute, remix, adapt, and build upon the material in any medium or format for noncommercial purposes only, and only so long as attribution is given to the creator.
| Received | Accepted | Published |
|---|---|---|
| April 03, 2026 | May 04, 2026 | June 30, 2026 |
DOI: 10.21088/ijfo.0974.505X.19126.2
Keywords
Palatal RugoscopyGender IdentificationOrthodontic TreatmentForensic OdontologyPalatal RugaeSearch for Similar Articles
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Timeline
| Received | April 03, 2026 |
| Accepted | May 04, 2026 |
| Published | June 30, 2026 |
licence
Attribution-Non-commercial 4.0 International (CC BY-NC 4.0)
This license enables reusers to distribute, remix, adapt, and build upon the material in any medium or format for noncommercial purposes only, and only so long as attribution is given to the creator.
