Ricerc@Sapienza

Background: Maxillary molar distalization is the most frequently used nonextraction treatment in the correction of Class II malocclusion. The use of traditional intra-oral devices shows unreliable results. Nowadays the use of miniscrew-supported appliances helps prevent anchorage loss. The aim of this pilot study is to compare the amount of upper first molar distalization and the dentoalveolar side effects using traditional distal jet appliance and miniscrew-supported distal jet appliance.

OBJECTIVES The aim of the present clinical case is to describe an orthodontic treatment to gain space in the maxillary arch by using a bone-anchored molar distalization appliance (distal-jet). Computer-guided palatal orthodontic mini-screws were inserted in the palatal vault thanks the use of a surgical guide realized with CAD/CAM technology. MATERIALS AND METHODS In this case report two orthodontic mini-screws were inserted in the palatal area by means of a surgical guide by a specialist in orthodontic without oral surgery or computer-guided skills.

Introduction: The primary aim of this study was to investigate and compare perceived pain intensity and oral health–related quality of life (OHRQOL) results during the activation phase of rapid maxillary expansion (RME), with tooth-borne and bone-borne devices. In addition, a secondary aim of this study was to evaluate the correlation between pain scales and the shortened Oral Health Impact Profile (OHIP-14) questionnaire. Methods: Thirty-six subjects (16 girls and 20 boys) with a mean age of 12.3 years (standard deviation, 0.82 years) were randomized into 2 groups.