Assessment of Palatine Rugae Stability as a Landmark for Analysis of Orthodontic Treatment Changes in Extraction Cases

Authors : Dr. Shalini G Jain; Dr. B. Balashanmugam; Dr Sharmila R; Dr Tharun M

Volume/Issue : Volume 7 - 2022, Issue 5 - May

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Palatine rugae are anatomical folds or wrinkles of irregular fibrous connective tissue located on the anterior third of the palate behind the incisive papilla. These rugae patterns have been widely studied for various purposes, mainly in the fields of anthropology, genetics, orthodontics, prosthodontics and forensic science. AIM: The study aims to assess the palatine rugae stability as a landmark for analysis of orthodontic treatment changes. OBJECTIVES: This study was designed to investigate the stability of palatine rugae before and after orthodontic treatment and to explore the potential of the palatine rugae area to be used as an adjunctive aid for superimposition in cast analysis of orthodontic treatment changes. MATERIALS & METHODS: The pre and post-dental casts of 50 orthodontically treated adult patients were selected from the Department of Orthodontics, Tamilnadu Government Dental College and Hospital. All patients were indicated to have symmetrical extraction of the maxillary first premolars followed by retraction of the anterior teeth& space closure.All casts were analyzed and measurements done. Comparing the pre and post orthodontic treatment position of the rugae points transversely, antero-posteriorly and in relation to the median palatal plane. RESULTS: Findings concludes that the most stable rugae points were the points of the third rugae and this may be due to their presence away from the extraction position. Thus, they were the least affected by the distal retraction of the anterior teeth. Hence, it could be used as reference points for cast superimposition. CONCLUSION: Palatine rugae showed stability following orthodontic treatment and tooth movement which presented no statistically significant effect on the position of the palatine rugae area. Hence,it could be used for cast analysis and superimposition. DISCUSSION: In the present study, the rugae points in all the measurements in relation to the median palatine raphe revealed stability except for a slight decrease in the values of the right second rugae which was statistically non-significant. From these findings and the whole results, it was concluded that the most stable rugae points were the points of the third rugae and this may be due to their presence away from the extraction position.

Keywords : Palatal rugae,Rugae pattern, Cast Analysis, Orthodontic Superimposition.


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31 - December - 2022

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