Background: Palatal rugae are nonidentical mucosal elevations seen on anterior third of palate. They are arranged in transverse direction on either side of the mid-palatine raphe. Although they are the most stable anatomical structures in the oral cavity, certain conditions such as expansion in orthodontic treatment contribute to some amount of variations in their pattern qualitatively. The aim of this study was to compare the shape of rugae and its positional changes before and after rapid maxillary expansion.
Materials And Methods: Fifteen pairs of pre- and post-maxillary expansion casts showing finer details of palatal rugae from seven males to eight females in the age group of 10 ± 2.5 years were selected for this study with transverse maxillary deficiency reporting to Department of Orthodontics, VS Dental College and Hospital. The shape of rugae and the distance between the median points and lateral points of the first and the last two rugae on either side of the mid-palatal raphe were noted and marked. The data collected was statistically analyzed using SPSS program.
Results: There was statistically significant difference in the distance between medial and lateral points of first two and last two rugae.
Conclusion: During maxillary expansion, there is stability of palatal rugae with respect to its shape, number but not with respect to its position. Clinically, the orthodontist can quantify the palatal separation after expansion of the maxillary arch using the interruga distance.
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http://dx.doi.org/10.4103/jomfp.JOMFP_190_18 | DOI Listing |
FEBS J
December 2024
Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Developmental and Regenerative Biology, College of Life and Environmental Sciences, Hangzhou Normal University, China.
Cleft palate is one of the most common birth defects in humans, and palate morphogenesis depends on epithelial-mesenchymal interaction. In this study, we report that ablation of Isl1 in the epithelium leads to complete cleft palate. A significant reduction in mesenchymal cell proliferation was detected in the Isl1 mutant palates, but there was no significant difference in apoptosis between wild-type and mutant embryos.
View Article and Find Full Text PDFEur J Orthod
December 2024
Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon str., Athens 11527, Greece.
Forensic Sci Int
January 2025
Department of Restorative Dentistry and Endodontics, Semmelweis University, Budapest, Hungary. Electronic address:
Intraoral scanning of the palate is considered reliable for human identification; however, its accuracy on postmortem tissue remains dubious. This study aimed to investigate the effect of tissue decomposition on the precision of the intraoral scanner and the deviation of the scan. Ten fresh lamb (Ovies aries) maxillae were either unwashed or washed, selected, and stored at 20.
View Article and Find Full Text PDFbioRxiv
November 2024
Department of Oral Biology, School of Dental Medicine, University at Buffalo, The State University of New York, Buffalo, NY 14214, U.S.A.
MLL4, also known as KMT2D, is a histone methyltransferase that acts as an important epigenetic regulator in various organogenesis programs. Mutations in the gene are the major cause of Kabuki syndrome, a human developmental disorder that involves craniofacial birth defects, including anomalies in the palate. This study aimed to investigate the role of MLL4 and the underlying mechanisms in the development and growth of the palate.
View Article and Find Full Text PDFDent J (Basel)
September 2024
DIMIT, Department of Medicine and Technological Innovation, University of Insubria, 21100 Varese, Italy.
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