We first want to thank the patients and their families that accepted to become involved in this study by giving us their teeth.We would also like to thank the"Association Fran?aise des Familles ayant un enfant atteint du Syndrome Silver-Russell ou né Petit pour l'age Gestationnel(AFIF/PAG)for their help in patient recruitment.We would like to thank the surgeons that extracted the teeth,which allowed this study:Dr Eleonora Segna,Dr Charles-Victor André,Dr Jean-Michel Pons Moureou,and Dr Aurélie Franco.We finally thank Virginie Steunou,Frédéric Brioude,Cristina Das Neves,Marilyne LeJule,and Nathalie Thibaud,molecular biology diagnosis technicians,for their help.EG was financially supported with a grant from the Société Fran?aise d'Endocrinologie et Diabétologie pédiatrique and the experiments were supported by the ANR-18-CE12-022. （AFIF/PAG）