Rapid Maxillary Expansion After Alveolar Bone Grafting With rhBMP-2 in UCLP Evaluated by Means of CBCT.

Objective: To demonstrate the feasibility of rapid maxillary expansion (RME) after alveolar bone grafting (ABG) in complete unilateral cleft lip, alveolus and palate (UCLP) without damage to the grafted area.

Setting: Hospital for Rehabilitation of Craniofacial Anomalies (HRAC), University of São Paulo, Department of Orthodontics.

Patient: A case report of a 10-year-old boy with a complete UCLP who was treated with RME after secondary ABG procedure.

Resorption of roots of different dimension induced by different types of forces.

Root resorption is a variable to be considered in induced tooth movement (ITM). It is related to root morphology and alveolar bone crest, and also to the types of forces exerted by mechanotherapy. This histometric study evaluated the predominance of root resorption among roots of different dimensions, following ITM with different types of forces and at different time intervals.

Induction of ankylosis in the incisor for orthodontic tooth movement in rats.

Background/aim: The present research evaluated the induction of ankylosis and the eruption rate in rat incisors, with the aim of achieving stable anchorage for orthodontic tooth movement (OTM) of the molars.

Material And Methods: Fifteen male Wistar rats were used. In the Experimental group, the right superior incisor of each animal was extracted, denuded of the PDL and the dental papilla, and reimplanted.

Importance of periodontal ligament thickness.

This study evaluated whether periodontal ligament (PL) thickness varied with root size and examined the possible influence of this variation on orthodontic mechanics. Measurements were taken of the maxillary left first molar in 54 male Wistar rats. Mean mesial and distal PL thicknesses were compared between the intermediate buccal and mesiobuccal roots using paired Student's t-tests with a 5% significance level.

Comparative evaluation of two different vestibuloplasty surgical procedures in cleft patients: a pilot study.

Objective: Patients with a cleft lip or palate often present alterations in the labial aspect of the ridge, resulting in a shallow vestibule. This study compares the results of two different surgical procedures on deepening of the labial sulcus.

Interventions: Ten patients with a cleft lip and palate were separated into two groups and underwent different vestibuloplasty procedures.