Online ISSN: 2515-8260

BONE DENSITY ASSESSMENT OF MIDPALATAL SUTURE USING GRAYSCALE VALUES-A CBCT STUDY

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Akshay Mohan1 , Shanthasundari K K2 , Ashwin George Mathew3 ,Arthi Balasubramaniam4

Abstract

To assess the predictability of grayscale values in a CBCT scan to assess the level of maturation of midpalatal suture density using CBCT modality Materials and Methods: The 58 CBCT images of maxillary arch of subjects belonging to the age group 5-32 years were evaluated to assess morphologic stages of the midpalatal suture maturation stages A to E based on the Angeliere classification using the grayscale values. One-way ANOVA test was used to check the variation of grayscale in different groups of mid palatal suture classification. Pearson's correlation test was used to determine the correlation between the age of the subjects and grayscale values. An arithmetic calculation was done to convert the grayscale values into Hounsfield units to assess bone density according to the Misch’s Classification. Results- Mean and standard deviation of the grayscale value corresponding to the palatal maturation stage were assessed and its Hounsfield units (HU) were obtained by using the mathematicalformula. There was a statistically significant difference among the stages. No significant difference was observed between stage D and E (p-value >0.05). There was a significant correlation between the age of the patient and the corresponding grayscale value (r =0.599, p=0.00). Conclusion- A statistically significant difference between the ossification stages of the mid palatine suture and grayscale values was obtained from CBCT and can be hence used as an alternate method for checking bone density. There is an increase in grayscale value observed as the age of the subjects increases.

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