To intrude or not to intrude? A systematic review of the controversy surrounding orthodontic intrusion on reduced periodontium.

Objective: The main objective of this review was to evaluate the effects of orthodontic intrusion on patients with reduced periodontium. Additionally, this review aims to explore the potential for attachment gain and tissue regeneration in these patients and identify optimal therapeutic conditions to mitigate any negative effects of intrusion.

Methods: A systematic review was conducted according to the PRISMA 2020 statement.

Is maxillary arch expansion with Invisalign® efficient and predictable? A systematic review.

Background: The main objective of this review is to assess the effectiveness and predictability of the transverse expansion movement performed by Invisalign®. The secondary objectives are to determine whether the expansion is of a dentoalveolar or skeletal nature, and to locate the areas of expansion on the dental arch.

Methods: Two investigators used the PubMed database to search for articles related to the subject.