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Table 3 Associations between data of general questions and chosen treatment therapy with coefficient of determination

From: Temporary anchorage device usage: a survey among Swiss orthodontists

Categories of general questions section TAD type used for distalization Treatment options: main categories
Orthodontic technique (fixed appliance) 0.20* 0.21
Self-ligation 0.16* 0.07
Bracket slot sizes 0.10* 0.17
Country of specialisation 0.25* 0.10
University of specialisation 0.29* 0.27
Working in private practice as 0.20 0.15
Gender 0.05 0.08
Years working as orthodontist 0.09 0.00
Years working in private practice 0.32 0.00
Number of mini-screws placed approximately in February and March of 2012 0.35* 0.29
Number of palatal implants placed approximately in February and March of 2012 0.27 0.29
Number of mini-plates placed approximately in February and March of 2012 0.11 0.12
  1. *P < 0.05.