Statistical analysis
Data are presented as median and interquartile range
(Percentiles 25 and 75). Chi-square test has been used to compare
the proportion of obtained genetic profiles between both samples,
healthy and cavities tooth. The U of Mann-Whitney test was
applied to compare the concentration and the purity of both
groups, whereas Fisher test was used to compare the grade of
human identification profile. Statistical analysis was performed
with the Stata v.13 (StataCorp. 2013. Stata Statistical Software:
Release 13. College Station, TX: StataCorp LP) software. Only
p-values of 0.05 have been considered statistically significant.