In 2016, the same authors reported that ROGDI-negative individuals with the clinical diagnosis of KTZS showed biallelic mutations in SLC13A5, previously described in individuals with the diagnosis of autosomal recessive early infantile epileptic encephalopathy (EIEE25, MIM: #615905) who also displayed variable teeth hypoplasia and/or hypodontia [78]. This evidence concerns the gene SLC13A5 and tooth agenesis.