fa عمومى General گزارش مورد case report <strong>Background</strong>: Early orthodontic treatment is important to guide dentitions during the development of a functional and morphological occlusion. Anterior dental crossbite and thumb sucking habits can be treated by interceptive orthodontic treatment modalities that are a method to restore a normal occlusion when a malocclusion has started to occur.<br> &nbsp;<br> <strong>Case Presentations</strong>: The cases shown are ranging from the age of 7-9 years presenting in mixed dentition development. This article presents six cases of anterior crossbite corrected by using removal acrylic appliances with Z spring and two cases of thumb sucking habits corrected by using palatal crib. Recall examination after 6 months displayed normal occlusal relationship without any relaps.<br> &nbsp;<br> <strong>Conclusion: </strong>Paediatric dentists have&nbsp; important role to diagnose malocclusions early. Early interceptive orthodontic treatment can potentially eliminate the need for future complicated and costly orthodontic treatment.<br> &nbsp; Interceptive Orthodontic, Anterior Crossbite, Thumb Sucking, Palatal Crib. 104 111 http://intjmi.com/browse.php?a_code=A-10-1-271&slc_lang=fa&sid=1 Ceren İlisulu 10031947532846002957 10031947532846002957 Yes Istanbul University, Faculty of Dentistry, Department of Pedodontics, Istanbul, Turkey, DDS PhD. Sinem Uz 10031947532846002958 10031947532846002958 No Istanbul University, Faculty of Dentistry, Department of Pedodontics, Istanbul, Turkey, DDS PhD. Mine Koruyucu 10031947532846002959 10031947532846002959 No Istanbul University, Faculty of Dentistry, Department of Pedodontics, Istanbul, Turkey, DDS PhD. Figen Seymen 10031947532846002960 10031947532846002960 No Istanbul University, Faculty of Dentistry, Department of Pedodontics, Istanbul, Turkey, DDS PhD.