IJAR.2019.198
Type of Article: Original Research
Volume 7; Issue 2.3 (June 2019)
Page No.: 6657-6662
DOI: https://dx.doi.org/10.16965/ijar.2019.198
A STUDY ON HARD PALATE AND HIGH ARCHED PALATE: A MORPHOMETRIC STUDY WITH ASSOCIATED TRAITS
Panathula Annapurna 1, Peruri Pushyami *2.
1 Assistant professor, Department of Anatomy, Pinnamaneni Siddhartha Medical College, Vijayawada, Andhra Pradesh, India.
*2 Assistant professor, Department of Anatomy, Pinnamaneni Siddhartha Medical College, Vijayawada, Andhra Pradesh, India.
Address of correspondence: Dr. Peruri Pushyami, Assistant professor, Pinnamaneni Siddhartha Medical College, Vijayawada, Andhra Pradesh, 521345, Mobile no: 9963175827, E-Mail: dr.pushyami@gmail.com
ABSTRACT:
Background: The hard palate is important for feeding, mastication and speech. Mammals with a defective hard palate may die shortly after birth due to the inability to suckle. The interaction between tongue and hard palate is essential in the formation of certain speech sounds. In high arched palate, a proper palate-lingual contact is not achieved, resulting in defective articulation. Surgically, the anatomy of hard palate can be modified by using Palatal Height Index measurement, which could lead to the improvisation of palato-lingual contact and articulation. This study aims to determine the Palatal height index.
Results: After taking detail history of the subjects, the qualitative and quantitative parameters were measured and then compared between the normal group (n=60) and high arched palate group (n=60) to know the statistical significance between the two groups. The qualitative parameters measured in this study were shape of hard palate, permanent dentition, microdontia, spacing of teeth, missing of teeth, eruption time of teeth, crowding of teeth, malalignment, and malocclusion. The quantitative parameters measured in this study were average linear width, average height and palatal height index. Impressions of hard palate were taken through the prepared cast. From the prepared cast average linear width, average height and palatine height index were measured. The mean ± SD value of average linear width measured between two molars was found to be 3.82 ± 0.32 in normal and 3.46 ± 0.17 in high arched palate subjects. The mean ± SD value of average height measured between two molars was 1.58 ± 0.26 in normal and 2.06 ± 0.2 in high arched palate subjects. The mean ± SD value of palatine height index measured between two molars was 41.98 ± 9.82 in normal and 59.69 ± 5.81 in high arched palate subjects.
Conclusion: Palatal height index was high in the study group when compared to the normal group of similar aged candidates and the results were found to be statistically significant. Crowding of incisors and canines, malocclusion, malalignment, absence of 2nd premolar, spacing of teeth were observed in high arched palate group.
Key words: Hard palate, Crowding of teeth, Malocclusion, Average linear width, Average height and Palatal Height Index.
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