Bioactive silica fibers provide alternatives for the design of novel products, e.g., as implants used in tissue guiding or bone repairs.
During the past 35 years glass and glass-ceramics have been used for tissue guiding in filling bone cavities, in treating frontal sinus infections, in repair of damaged suborbital ocular rims, in dentistry for treating infected bifurcation, etc.
Thus, for the indirect approach, normal tissue guides yield lifelong cancer treatment solutions.
In contrast to the intersegmental vessels (ISVs) of the trunk, which sprout following well-defined attracting and repulsive cues (Torres-Vázquez et al., 2004; Suli et al., 2006), the subintestinal plexus develops in the absence of any apparent tissue guiding its formation.
Longitudinal incisions of around 1 cm were made and the protective soft-tissue guide was introduced by means of blunt dissection.
Then, with blunt dissection and the aid of a protective soft-tissue guide positioned at 90 degrees to the coronal plane of the hand, two 2.5 mm pins were introduced until they pierced the volar cortical wall of the second metacarpal.
These studies demonstrated that natural ECM scaffolds, derived from decellularized tissues, guide stem cell differentiation into the cell types residing in the tissue from which the ECM was derived [35].
Based on a graded-biomaterials approach, we have hypothesized that the next-generation of guided tissue and guided bone regeneration (GTR/GBR) membranes for periodontal tissue engineering will be a biologically active, spatially designed and functionally graded nanofibrous biomaterial that closely mimics the native extra-cellular matrix (ECM).
The complete regeneration of lost periodontal tissues, guided tissue regeneration (GTR) is identified one of the best strategies.
Tissue-guided regenerated heart valves risk therefore being a therapeutic option for few.
