BACKGROUND Corrosion resistance is an important requirement for orthodontic appliances. Nickel and chromium may be released from orthodontic wires and can cause allergic reactions and cytotoxicity when patients use various mouthwashes to whiten their teeth. Our study aimed to assess the release of nickel and chromium ions from nickel titanium (NiTi) and stainless steel (SS) orthodontic wires fo...

OBJECTIVES The present study evaluated comparatively the surface roughness of four orthodontic band cements after storage in various solutions. MATERIAL AND METHODS Eight standardized cylinders were made from 4 materials: zinc phosphate cement (ZP), compomer (C), resin-modified glass ionomer cement (RMGIC) and resin cement (RC). Specimens were stored for 24 h in deionized water and immersed i...

A 13 year old girl was referred to the authors because of mobility of the upper central incisors. Orthodontic treatment had been completed 6 months prior to the referral. Three months after the completion of orthodontic treatment a diastema developed between the maxillary central incisors. As the labial frenum was felt to be causing the splaying a frenectomy was done with electrocautery and the...

OBJECTIVE The purpose of this study was to assess the efficiency of compensatory orthodontic treatment of patients with mild Class III malocclusion with two preadjusted bracket systems. METHOD Fifty-six matched patients consecutively treated for mild Class III malocclusion through compensatory dentoalveolar movements were retrospectively evaluated after analysis of orthodontic records. The sa...

Aim: Orthodontic brackets during their wear cause demineralization of enamel, which is the initial step in caries development. The prevention such spots crucial to ensure healthy teeth, but patients’ compliance not most optimal way. aim this study was compare antimicrobial properties fluoride-containing orthodontic materials without additional fluoride. Materials and Methods: Antibacterial effe...

Received: 10/Jan/2009, Accepted: 18/Mar/2009 Objective: Receptor activator for nuclear factor kappa B ligand (RANKL), which is also called osteoclast differentiation factor, is an important regulatory factor in osteoclast maturation. Knowledge of bone and cementum similarities and RANKL role in bone resorption suggests the possibility of a role for this protein in root resorption induced by ort...

AIM The study was undertaken to measure the changes within the mesh pad associated with reconditioning process, measure the bond strength of new and reconditioned orthodontic brackets and correlate the changes in mesh strand diameter with changes in bond strength. MATERIAL AND METHODS 120 clinically normal premolar teeth extracted for orthodontic reasons, were divided equally for bonding with...