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Updated: Apr 25, 2026

Hybrid Printing for the Fabrication of Smart Sensors
Published on: January 31, 2019
Experimental model of developing and analysis of lip prints in atypical surface: A metallic straw (bombilla)
Gabriel M Fonseca1, Esteban Bonfigli2, Mario Cantín3
1CIMA Group, Faculty of Dentistry, Universidad of La Frontera, Temuco, Chile ; Department of Oral Pathology, Faculty of Dentistry, National University of Cordoba, Argentina.
Background:
The interaction between the offender and the victim produces visible or latent prints on objects and utensils. The study of lip prints has reportedly stayed away from the basic cinematic concept of the lip-to-surface relationship.
Materials And Methods:
Three regular powders were used to reveal the latent lip prints on a typical metallic straw called bombilla, and the revealed prints were photographed, preserved, and analyzed.
Results:
Better definition was observed in the lower lip print, and nine anatomical patterns were identified, but a higher definition of wrinkles was observed with indestructible white powder.
Conclusion:
Knowledge of labial dynamics, the real value of the processed surfaces, and the need for testing in field conditions are discussed.

