 Powder-based additive manufacturing techniques, such as selective laser sintering, SLS, and inkjet 3D printing, 3DP, are being used to create complex structures from tissue engineering materials. These techniques can produce parts with high accuracy and low cost, making them ideal for tissue engineering applications. Research has focused on optimizing these techniques to improve mechanical and biological properties of fabricated tissues and scaffolds. Parameters such as laser power, scan speed, and powder particle size have been optimized to achieve desired results. Additionally, new biocompatible, a bioactive materials have been developed to enhance the mechanical and biological properties of laser sintered and 3D printed tissues. Finally, researchers have explored ways to improve the mechanical and biological properties of tissues by optimizing the processing conditions. This article was authored by Saeed Farid Saeed Shirazi, Samira Garakani, Mehdi Mairali, and others.