Aim: The purpose of the study was the evaluation of the esthetic and physical changes produced on colored titanium Grade 5 (Ti6Al4V) laser treated surfaces to be used in implant dentistry for esthetic success. Materials and methods: Colored titanium surfaces were obtained with laser treatment. The physical and topographic properties were evaluated by stereo, light, and electron microscopy and profilometric analyses. L*a*b* colorimetric coordinates were measured by spectrometry, and the superficial chemical characteristics were evaluated by energy dispersive X-ray analysis. Results: Within the complete palette of titanium colors, pinks (P1-P2), incarnadine (I), and white (W) obtained by laser were selected. The topography, texture, hues, saturation, roughness, and porosity of the samples were compared with those of machined (M) and sand-blasted and etched (SBAE) control surfaces. P1, P2, and I, similar in hue and roughness (Ra ≅ 0.5 μm), had a microgroove spacing of 56 μm and a decreasing porosity. The W sample with a “checkerboard” texture and a light color (L* 96.31) was similar to the M samples (Ra = 0.32 μm), but different from SBAE (Ra = 1.41 μm, L* 65.47). Discussion: The aspects of hard and soft tissue could result in an esthetic failure of the dental implant by showing the dark color of the fixture or abutment. The two different pinks and incarnadine surfaces showed favorable esthetic and physical features to promote dental implant success even in the maxillary anterior area with gingival recession, asymmetry, and deficiency. Conclusion: Titanium colored laser surfaces represent a valid alternative to those currently traditionally obtained and interesting and potential perspectives in the management of dental implants’ esthetic failure.
Background : The thickness of buccal hard and soft tissue has been claimed to be of great clinical relevance in terms of aesthetics and health around implants. To improve such condition several surgical techniques have been proposed and several biomaterials have been used. Collagen products, cross-linked through the use of sugar according to GLYMATRIX technology, have shown their ability to undergo ossification in both animal and human studies, maintaining space for regeneration for long time. Aim/Hypothesis : To evaluate, through a series of consecutively treated patients, the ability of a GLYMATRIX collagen scaffold to improve buccal tissue thickness when used simultaneously to implant positioning in native bone. Materials and Methods : 16 patients, pre-operatively showing adequate bone for implant placement in a CBCT and flat\concave horizontal profile of the ridge in a clinical evaluation, were included in the study. Preoperative virtual models were developed using an intraoral scanner and a dedicated software. All patients received one or two implants and a cross-linked collagen scaffold (OSSIX Volumax, Datum Dental) was placed on the buccal bone plate at the same time. Flaps were repositioned to cover the matrix and sutured around a healing cap. After a conventional healing protocol (post-operative home care, suture removal, clinical and radiographic follow up visits) implants were loaded at 6 months and a new virtual model was obtained with the procedure of above. Gain in tissue thickness buccally to the implant was measured, by means of a computed superimposition of pre-and 6-month virtual models, as the largest improvement along the first 5 mm vertically measured from the gingival margin. Results : 20 implants with sugar cross-linked collagen matrix on the buccal side were consecutively placed in 16 patients. The mean buccal tissue gain at 6 months was 2.4 mm (SD = 0.7 mm). Conclusions and Clinical Implications : The use of a sugar cross-linked collagen matrix showed very promising results in improving buccal tissue thickness around implants. Such ability could be of high clinical relevance to improve this clinical parameter so important for health and esthetics with no needs for major procedures for augmentation.
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