The aim of this study is to compare topographically the hydrophilic potential of two different types of biomaterials through argentic impregnation. The experiment used five blocks of integral bovine bone (n = 5) consisting of an organic portion and a mineral portion (Bio-Oss Block, Geist ich Pharma, Welhausen, Switzerland); five blocks of bovine bone (n = 5), consisting of a mineral portion (Lumina Block, Criteria, São Paulo, Brazil); five blocks of equine bone (n = 5) (Bio-Gen, BIOTECK, Arcangelo, Italy). A model tomography I-Cat was used. The images were created in DICOM with the following acquisition protocol: MAX Fo V of 6 cm with 40-seconds exposure of 0.2 mm voxel (MAX Hight Resolution), tridimensional image, with 4.2 mm of depth and 103.67 of diameter compared in terms of weight and density in the initial and final conditions. The non-parametric tests of Wilcoxon Signed Rank and Wilcoxon Mann-Whitney were used in the analysis of results

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The bovine collagen membrane LUMINA-COAT (Reg.ANVISA nº80522420002) of the company CRITÉRIA BIOMATERIAS LTDA, membrane basically composed of type 1 collagen, biocompatible and sterile for medicine and dentistry use, had one of its surfaces coated with a polylactic acid (PLA) sheet. Sterile and previously shaped for adjustment on grafted bone site, this device was applied in 2 clinical cases of bone regeneration in the function of guided tissue regeneration barrier.

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