Comparison of 2 means (independent z test or independent ttest)
In previous articles, I discussed how to calculate the probability of obtaining data as extreme as those we have observed if the null hypothesis were true. This probability, called the…
Long-term bonded retention after closure of maxillary midline diastema
Introduction The objectives of this study were to evaluate fixed bonded palatal surface retainers between the maxillary central incisors that were placed to maintain midline diastema closure and record their…
Risk management strategies in orthodontics. Part 1: Clinical considerations
Orthodontic therapy uses safe procedures resulting in significant functional and esthetic benefits with relatively few risks. Nevertheless, in an increasingly litigious society, one that raises an autonomous patient’s expectations while…
Physical and adhesive properties of dental enamel after radiotherapy and bonding of metal and ceramic brackets
Introduction The increasing success rates for cancer patients treated with radiotherapy and the frequent occurrence of tooth loss during treatment have led to an increased demand for orthodontic treatment after…
Comparison of 5 types of interocclusal recording materials on the accuracy of articulation of digital models
Introduction One method of articulating digital models is to use a digitized interocclusal record. However, the accuracy of different interocclusal record materials to articulate digital models has yet to be…
American Association of Orthodontists Foundation Craniofacial Growth Legacy Collection: Overview of a powerful tool for orthodontic research and teaching
This article reports on the current status of the American Association of Orthodontists Foundation (AAOF) Craniofacial Growth Legacy Collection—an AAOF-supported multi-institutional project that uses the Internet and cloud computing to…
A century of influence: Part 2. The greatest generation
The story of orthodontics during the first 100 years of Journal publication can be told through the people who lived it. As part of the American Journal of Orthodontics and Dentofacial…
Effect of social media in improving knowledge among patients having fixed appliance orthodontic treatment: A single-center randomized controlled trial
Introduction Research has shown that orthodontic patients are more likely to retain information presented in an audiovisual format. However, there has been little research on the effectiveness of audiovisual information…
How much is too much?
Rosa is a radiant, affectionate 10-year-old girl who was adopted from Central America. The restorative dentistry that had been provided for her before her adoption was accomplished without local anesthesia. Although…
Residents’ journal review
Alveolar bone assessment by cone-beam computerized tomography Ma ZG, Yang C, Fang B, Xia YH, Mao LX, Feng YM. Three-D imaging of dental alveolar bone change after fixed orthodontic treatment…
