We assessed the stability of orthodontic mini-implants in young rats. Male rats with mean ages of 6 weeks (n = 16) and 20 weeks (n = 16) were divided into four groups (n = 8 each). In the 6- and 20-week immediate-loading groups, immediately after placement, mini-implants were exposed to an experimental traction force for 2 weeks. In the 6- and 20-week healing groups, the force was applied for 2...

Orthodontic anchorage is defined as resistance to undesired tooth movement. In the anteroposterior dimension, 3 anchorage situations are traditionally defined by the ratio of incisor retraction to molar protraction. While moderate anchorage entails reciprocal space closure, maximum anchorage means that most of the space is closed by retraction of the incisors, and minimum anchorage means that m...

Dr. Librizzi is in the private practice of orthodontics in South Burlington, VT. Dr. Janakiraman is an Assistant Professor and Dr. Rangiani is a postgraduate resident, Division of Orthodontics, Department of Craniofacial Sciences, University of Connecticut School of Dental Medicine, 236 Farmington Ave., Farmington, CT 06030. Dr. Nanda is an Associate Editor of the Journal of Clinical Orthodonti...

Deep overbite has potentially detrimental effects on mandibular and temporomandibular joint function and periodontal health as well as esthetics. Incisor intrusion can be achieved with various treatment modalities. The most commonly used is the utility arch technique. In mini-implant anchorage system, forces can be applied to produce tooth movement in any direction without detrimental reciproca...

The aim of this research is to systematically analyze clinical trials involving the use of mini-implants in the sagital control of II / 1 anomaly. Published articles were considered over a period of seven years, in the AJO-DO and "The Angle Orthodontist”. There were sought all articles which reported the use of mini-implants in the sagittal control for the treatment of II/1 anomaly. By establis...

Results: All measurements were pooled and submitted to statistical analysis. In order to verify the inter-examiner systematic error a paired t-test was performed. Dahlberg ’s formula was used to estimate the casual error. For comparison purposes between Before and After stages, a paired t-test was done. For the comparison between mini-implant and Nance button groups, a Student t-test was applie...