Journal of Forensic Dental Sciences
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Year : 2015  |  Volume : 7  |  Issue : 1  |  Page : 8-13

Transverse changes in lateral and medial aspects of palatal rugae after mid palatal expansion: A pilot study

Department of Orthodontics, Faculty of Dentistry, Jamia Millia Islamia, New Delhi, India

Correspondence Address:
Priyanka Kapoor
Department of Orthodontics, Faculty of Dentistry, Jamia Millia Islamia, New Delhi
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0975-1475.150294

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Introduction: Palatal rugae has established role in forensic identification of an individual due to its stability in growth as well as orthodontic treatment. However effect of orthodontic mid-palatal expansion on rugae stability still requires further investigation. Hence, this study was aimed at evaluating the stability of palatal rugae in transverse dimension in adolescent patients of mid-palatal expansion. Materials and Methods: The study sample consists of 14 subjects (10F,4M, age 12.4 ± 2.0 years) with transverse maxillary constriction, treated with bonded and banded rapid maxillary expansion (RME) appliance. 1 st to 3 rd rugae on pre- and post-expansion casts were recorded synchronously. Inter-medial and inter-lateral rugae distance were measured with digital calipers to record the transverse positional rugae changes. Results: There was a statistically significant (p < 0.05) increase in values after expansion between medial aspects of 2 nd (p = 0.002) and 3 rd rugae (p = 0.005) and lateral aspects of 1 st (p = 0.015), 2 nd (p = 0.006) and 3 rd (p = 0.001) rugae. The transverse changes were recorded in the order of 3 rd rugae >2 nd rugae >1 st rugae. Conclusion: This pilot study does not support stability of medial and lateral ruga points of 2 nd and 3 rd primary rugae for forensic identification in individuals treated with mid palatal expansion.

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