Evaluation of treatment for functional posterior crossbite of the deciduous dentition using Planas' direct tracks.

Background: Functional posterior crossbites are a common finding in children with deciduous teeth and must be treated as soon as they are diagnosed in order to avoid unwanted changes in normal growth and development patterns.

Objective: This study objective was to evaluate the changes caused by Planas' direct tracks treatment on the arch dimensions of patients with functional posterior crossbite in first dentition.

Materials And Methods: The sample consisted of 20 children, 4 to 6 years old, divided into two groups, paired up according to age and gender.

Evaluation of the mechanical and chemical control of dental biofilm in patients with Down syndrome.

Objective: To evaluate the mechanical and chemical control of dental biofilm in patients with Down syndrome, using different experimental dentifrices.

Material And Methods: Forty institutionalized children between ages 7 and 13 years in the mixed dentition phase participated in this study. An experimental cross-over, blind clinical trial was used, having the following protocols: fluoridated dentifrice (protocol G1); fluoridated dentifrice + chlorhexidine (protocol G2); fluoridated dentifrice + chlorhexidine + plaque-disclosing agent (protocol G3); and fluoridated dentifrice + plaque-disclosing agent (protocol G4).