1. Success predicted
The aim here was to compare patients with excellent and unacceptable orthodontic treatment results with respect to possible predictable factors. All patients, who completed treatment in a hospital department of orthodontics between 1993 and 2009 with an excellent or unacceptable outcome  were assessed for possible influencing factors including case history, treatment, cephalometrics and plaster casts. Out of 1,653 patients, treatment outcome was excellent in 226 (13.7%) and unacceptable in 56 (3.4%) patients, the remaining cases had either a good or acceptable outcome. The following factors were significantly more common in the unacceptable group: male predominance, occurrence of general diseases, habits, prolonged active appliance treatment duration, negative cooperation, refusal of recommended appliance or premature removal of appliances and decreased pretreatment overbite. Patient cooperation remains the outstanding parameter determining treatment success. A proportionally higher frequency of unacceptable treatment results must be expected in patients with open bite configurations (skeletally, dentally, and functionally).

Klaus K et al. Excellent versus unacceptable orthodontic results: influencing factors. Euro J Orthodontics 2017 Mar 24.

Q Overall, which factor is most decisive in predicting a successful outcome to orthodontic treatment?
A The length of appliance treatment
B Patient cooperation
C Accuracy of study models
D Female patients

  1. YouTube straighteners
Social media has been used to improve the knowledge of orthodontic patients during treatment. Sixty-seven patients were randomised into two groups all of whom were given the standard verbal and written information for patients about to receive orthodontic treatment. In addition, patients in the experimental group received e-mails asking them to view a specifically designed YouTube video which was unlisted but accessible through a web link in the e-mail. All patients completed a questionnaire at the time of bond-up which was repeated at six weeks. In all, the participants watched the video 90 times. Participants in the experimental group scored, on average, almost one point higher on the second questionnaire than did those in the control group. Ethnicity had a statistically significant effect on improvement in knowledge, but gender did not. Presenting audiovisual information through the YouTube web site to orthodontic patients resulted in a significant improvement in patient knowledge. Adding to verbal and written patient information with audiovisual information via the internet is therefore worthy of consideration in improving treatment outcomes.

O'Brien S, Duane B. Delivery of information to orthodontic patients using social media.
Evidence-Based Dent 2017 18: 59-60.

Q In relation to orthodontic treatment:
A Viewing YouTube content may confuse patients and give them unreasonable expectations
B Viewing video content is unlikely to have any effect on teenager’s knowledge
C Use of social media may be an added way to improve patients’ knowledge
D Young people are more likely to be interested in dating websites