Erratum to: Eur Arch Paediatr Dent (2016) 17:445–454 DOI 10.1007/s40368-016-0252-x

Owing to oversights during the production process, this article appeared with low-resolution versions of the figures. The authors and the publishers apologize for the inconvenience to readers and are pleased to provide the high-resolution figures here.

Fig. 1
figure 1

Questionable surface with ICADS II code 1: a stereomicroscopic image of the occlusal surface, b radiograph of the crown, c sectioning directions, and d section image by reflected polarised light microscopy

Fig. 2
figure 2

Questionable surface with ICADS II code 2: a stereomicroscopic image of the occlusal surface, b radiograph of the crown, c sectioning directions, and d section image by reflected polarised light microscopy

Fig. 3
figure 3

Questionable surface with ICADS II code 3: a stereomicroscopic image of the occlusal surface, b radiograph of the crown, c sectioning directions, and d section image by reflected polarised light microscopy