The relationship between age and degree of fusion between manubrium and mesosternurm and xiphoid process and mesosternurm was studied. The data was statistically analyzed. The mean age for onset and completion of these joints were calculated, followed by their regression equation for males and females respectively. Combined regression equation was also calculated for use where sex of the person is not known. The findings are presented in this article.

Key words: Sternum, Sternal joints, Degree of fusion, Age estimation