“…However, many of the included studies in this systematic review did not perform molecular analysis. Only 23 studies [41,43,52,53,56,63,[66][67][68]70,73,74,76,78,79,[87][88][89][90]92,94,98,105] performed genetic analysis and reported the genetic variants associated with the syndromes. These genes can be grouped into two major groups: one with crucial roles at multiple stages of tooth development, also involving skin and sweat glands (AXIN2, CDH1, DSP, EDA, EDARADD, EVC2, FGFR2, LEF1, MSX1, PITX2, and WNT10A), which are involved in the signal pathway essential for ectodermal structure development [121,122]; the other with genes that intermediate cellular function and development (NPHP1, PCNT, PTCH1, IKBKG, SRCAP, and TBCE).…”