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Is Palatal Rugae Pattern a Reliable Tool for Personal Identification following Orthodontic Treatment? A Systematic

Archana A Gupta¹, Supriya Kheur², Abdulrahman Alshehri³

¹Private Dental Clinic, Pune 411033, India.

Diagnostics (Basel, Switzerland)

|February 25, 2022

Summary

Palatal rugae remain reliable for personal identification after orthodontic treatment, as morphology is key for accurate visual matching despite dimensional changes. Combining dimensional and morphological analysis can enhance identification accuracy.

Keywords:

forensic odontology morphology orthodontic treatment palatal rugae

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Area of Science:

Forensic Odontology
Anthropology
Orthodontics

Background:

Palatal rugae (unique palatal ridges) are considered a potential biometric for personal identification.
Orthodontic treatment can alter the dimensions of palatal rugae.
The reliability of palatal rugae for identification post-orthodontics requires thorough evaluation.

Purpose of the Study:

To systematically review and assess the reliability of palatal rugae for personal identification after orthodontic interventions.
To qualitatively and quantitatively analyze changes in palatal rugae patterns following orthodontic treatment.

Main Methods:

A systematic review of cross-sectional retrospective studies from PubMed and SCOPUS databases.
Screening of titles and abstracts, followed by full-text analysis using inclusion/exclusion criteria.
Quantitative analysis of compatible data using RevMan software.

Main Results:

18 studies met eligibility criteria; only 3 allowed for quantitative analysis.
Significant dimensional changes were observed in specific palatal rugae (p=0.02, p=0.04).
Despite changes, visual matching accuracy by observers exceeded 90% pre- and post-treatment.

Conclusions:

Palatal rugae morphology appears to be the primary factor for accurate visual identification.
Combining dimensional and morphological assessments may improve personal identification accuracy.
Palatal rugae maintain their reliability as a biometric marker even after orthodontic treatment.