HighlightsChronological age was related to pulp chamber/crown volume ratio in a Spanish population Upper incisor ratios revealed the strongest correlation The pulp chamber/crown volume ratio explained 36.6% of the age variability The difference between chronological and dental age was <5 years in 31.3% of the sample This method of dental age estimation is gender-independent

The objective of this study was to compare the accuracy of contact and laser 3D scanners in tooth mark analysis. Ten dental casts were scanned with both 3D scanners. Seven linear measurements were made from the 3D images of dental casts and biting edges generated with DentalPrint© software (University of Granada, Granada, Spain). The uncertainty value for contact 3D scanning was 0.833 for the upper dental cast and 0.660 mm for the lower cast; similar uncertainty values were found for 3D-laser scanning. Slightly higher uncertainty values were obtained for the 3D biting edges generated. The uncertainty values for single measurements ranged from 0.1 to 0.3 mm with the exception of the intercanine distance, in which higher values were obtained. Knowledge of the error rate in the 3D scanning of dental casts and biting edges is especially relevant to be applied in practical forensic cases.

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S20 etch-and-rinse adhesive. The lowest mean µTBS were obtained with Xeno Select. Conclusions Clearfil SE and Scotchbond Universal applied as a 2-step etch-and-rinse adhesive had greater bond strength to dentin than Scotchbond Universal applied as a one-step self-etch adhesive and Xeno Select. The new universal adhesive Xeno Select, had lower bond strength, particularly applied as a one-step self-etch adhesive.

Madrid, Spain -Meeting Abstract S7 of a periapical lesion or the expansion of an existing one. These CBR systems provide valuable information that can be used to devise a tailored therapeutic approach. -Oral Presentation IntroductionThrough this case report we show the replacement of a metal-ceramic crown on 1.1, with an important aesthetic difficulty because of gingiva shade projected by the metal and the opacity of the material itself.

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