INTRODUCTION The effect of fixed orthodontic appliances on biochemical changes in saliva and pathophysiological status of the oral cavity is not clear. Recent data showed that nickel (Ni) released from orthodontic appliances can decrease cellular viability, induce DNA damage and apoptosis in oral mucosa cells. Since the mechanism of these Ni effects is unknown, the aim of our study was to analy...

OBJECTIVE To assess parents' and caregivers' view of the first twelve months of adolescents' orthodontic treatment with fixed appliances and to assess the evaluative properties of the Brazilian version of the Parental-Caregiver Perceptions Questionnaire (P-CPQ) in the orthodontic setting. METHODS Data from a sample of 96 parents and caregivers of adolescents undergoing orthodontic treatment w...

It is a commonly held misconception among Irish dentists that only minor malocclusions can be treated with lingual appliances. This article demonstrates the use of contemporary completely customised lingual orthodontic appliances to treat a diverse range of malocclusions, to a satisfactory level, and thereby may disabuse clinicians of the belief that only minor malocclusions can be treated with...

BACKGROUND Magnetic resonance imaging (MRI) has been used to study configurations of speech organs in the resting state. However, MRI is sensitive to metals, and numerous types of metallic appliances, most of which have a large magnetic susceptibility, are used in orthodontic treatment and may cause severe artifacts on MRI. We have developed techniques for obtaining MRI movies of the oral regio...

Objective: To evaluate the effects of fixed orthodontic treatment on gingival health. Materials and methods: In the present study 30 orthodontic patients under fixed mechanotherapy mean aged 19.82 years were selected. The selection criteria were: Treatment that consisted of full-mouth fixed orthodontic appliances. Exclusion criteria included patients with systemic disease, are on antibiotics or...

STATEMENT OF THE PROBLEM Fixed orthodontic appliances predispose patients to dental caries. Use of mouthrinses has been introduced as the effective way for reducing dental plaque accumulation. PURPOSE The aim of this study was to compare the effects of Persica mouthwash and Chlorhexidine (CHX) on colonization of Streptococcus mutans (S. mutans) on fixed orthodontic O-rings. MATERIALS AND ME...

BACKGROUND Malocclusion is a common disease of oral and maxillofacial region. The study was aimed to investigate levels changes of periodontal pathogens in malocclusion patients before, during and after orthodontic treatments, and to confirm the difference between adults and children. METHOD One hundred and eight malocclusion patients (46 adults and 62 children at the school-age) were randoml...