Dear ASO Member
You are invited to participate in the project described below.
The research project is about aiming to obtain the opinions and attitudes of ASO members regarding any changes in their tendency to prescribe orthodontic extractions in recent years.  It also aims to determine current extraction rates among orthodontists and to identify why extraction patterns may be changing.

This project is being conducted by A/Professor Maurice J Meade and Professor Craig Dreyer, Orthodontic Unit, Adelaide Dental School, University of Adelaide.
You are invited to participate as you are a member of the ASO
You are being invited to answer up to 20 questions. Questions are mostly ‘tick-box’ and relate to your demographic details, extractions as part of your orthodontic treatment plan in children/adolescents and factors that influence your extraction decisions.  In addition, you will have the opportunity to provide your own comments.
The survey will take approximately 10 minutes to complete.
There are no foreseeable risks with participating in the survey.
The survey will provide further evidence for specialist orthodontists to evaluate their own treatment practices and information for future research in the area of orthodontic treatment
Participation in this project is completely voluntary. If you agree to participate, you can withdraw at any time before submission of the survey.  Submission of survey responses will be taken as an indication of consent to taking part.
Participation is anonymous. Data from the survey will be stored by the applicant on a password protected University of Adelaide server. The results will be published in a peer reviewed journal. The data may be available to the ASO (subject to ethical approval) for future relevant research for up to 5 years after publication of the results.
Participants with specific queries regarding the survey may contact A/Prof Maurice Meade (primary contact) at or Professor Craig Dreyer at
What if I have a complaint or any concerns?

The study has been approved by the Human Research Ethics Committee at the University of Adelaide (approval number H-2021-118).
If you have questions or problems associated with the practical aspects of your participation in the project, or wish to raise a concern or complaint about the project, then you should consult the Principal Investigator. If you wish to speak with an independent person regarding concerns or a complaint, the University’s policy on research involving human participants, or your rights as a participant, please contact the Human Research Ethics Committee’s Secretariat on: 
Phone: +61 8 8313 6028 Email: 
Post: Level 4, Rundle Mall Plaza, 50 Rundle Mall, ADELAIDE SA 5000 
Any complaint or concern will be treated in confidence and fully investigated. You will be informed of the outcome.

Please go to NEXT to start the survey
Thank you in advance for your participation in this study.
Yours Sincerely
Associate Professor Maurice J. Meade 
Professor Craig Dreyer                                           
Orthodontic Unit, Adelaide Dental School, University of Adelaide.
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