The purpose of this study was to evaluate the electromyographic (EMG) activity of the masseter and temporalis muscles and the skeletal and dental behavior of children having slow maxillary expansion with a quadhelix appliance. The study sample consisted of 30 children (mean age = 7 years 4 months; 17 girls/13 boys) diagnosed with a unilateral posterior crossbite. Lateral cephalometric tracing a...

Asymmetric malocclusion is a common problem in children with transverse and vertical dental anomalies. These asymmetries can be skeletal, dental, functional or combination of these. The aim of this study was to determine condylar position and quantifying inclination of frontal occlusal plane in patients with transversal and vertical dentofacial discrepancy. The study group consisted of 80 patie...

AIM The aim of this audit was to evaluate orthodontic treatment eligibility among new patients referred for assessment from primary dental care clinics in the Health Service Executive (HSE) South region to a HSE orthodontic referral centre. METHOD A data collection form was designed and applied prospectively to consecutive new patient referrals who attended diagnostic clinics at the Orthodont...

INTRODUCTION This cross-sectional retrospective epidemiologic study assessed the relationship between exclusive breastfeeding duration and the prevalence of posterior crossbite in the deciduous dentition. METHODS Clinical examinations were performed in 1377 Brazilian children (690 boys, 687 girls), 3 to 6 years old, from 11 public schools in São Paulo, Brazil. Based on questionnaires answered...

In a previous study, we established that young children with unilateral posterior crossbite have a longer mandibular ramus and more superiorly and posteriorly positioned condyles on the crossbite side. In this study, we evaluated chewing cycle shape and duration in 14 of the patients before treatment, and we looked for changes in cycle shape and duration 6 months after treatment with rapid pala...

Background: Malocclusion can present itself in numerous ways. It is present in every society, but the norms and pattern vary. In order to correct occlusal disharmony, it is imperative to identify its pattern in the population so that proper resources can be directed toward its diagnosis and treatment planning. The aim of this study was to determine of skeletal and dental malocclusion in a sampl...

OBJECTIVES To assess the association of several dental malocclusion features with temporomandibular joint (TMJ) click sounds in a population of temporomandibular disorder (TMD) patients. MATERIALS AND METHODS Four hundred forty-two TMD patients (72% female; 32.2 ± 5.7 years, range 25-44 years) were divided into a TMJ clicking and a no-TMJ clicking group, based on the Research Diagnostic Crite...

This retrospective study was carried out on consecutively collected dental casts, x-rays, and photos of 129 Swedish children who had been born with non-syndromic unilateral (U) cleft lip (CL), cleft lip and alveolus (CLA), or cleft lip and palate (CLP). The following dental characteristics were investigated in the primary and permanent dentitions: 1. the presence, eruption, position, and shape ...

The aim of this study was to investigate possible associations between sickle cell anemia (SCA) and the severity of dental malocclusion (MO). This was a retrospective cohort study of 93 individuals with SCA (G1) and 186 individuals without the disease (G2). SCA patients were randomly selected by a simple draw from patients treated in the Centro de Hematologia e Hemoterapia do Maranhão (HEMOMAR)...

BACKGROUND/OBJECTIVES Although it has been suggested that adult patients with facial asymmetry with posterior unilateral crossbite (PUXB) may have a more tilted mandibular hinge axis (MHA) than those without PUXB, whether craniofacial morphology is associated with the MHA remains unclear. The purpose of this study was to compare the craniofacial morphology and MHA in adult subjects with post-gr...