“…The design should be simple in order to allow correct hygiene, with adequate band or crown adaptation [9] (Figure 1). Athough they are described as an effective and inexpensive treatement [10], a few studies have detailed possible complications: the development of caries, mucosal hyperplasia secondary to friction with the appliance, impingement of the latter, fractures (teeth, welding), decementing of bands and damage to the anchoring teeth such as root resorption or other root disorders [7,9,10] (Figures 2 and 3). Athough they are described as an effective and inexpensive treatement [10], a few studies have detailed possible complications: the development of caries, mucosal hyperplasia secondary to friction with the appliance, impingement of the latter, fractures (teeth, welding), decementing of bands and damage to the anchoring teeth such as root resorption or other root disorders [7,9,10] (Figures 2 and 3).…”