**7.2 Definitive prosthesis**

The long-term success of our prosthetic treatment depends on an adequate diagnosis and the detection of possible clinical difficulties before treatment. The planning of esthetic and functional prostheses requires the analysis of additional parameters such as smile height, lip sizes, permanence or absence of nasal and labial support given by the pre-maxilla, interocclusal and inter-arch space, functional demands, etc. For full arch reconstruction with dental implants there are several alternatives that we mention below:


*A Review of Current Concepts in Full Arch Rehabilitation with Dental Implants DOI: http://dx.doi.org/10.5772/intechopen.99704*

#### **Figure 6.** *Workflow for fabrication of hybrid metal-acrylic prosthesis.*

fracture. Other authors recommended a cantilever length of 1.5 or 2 times of the anterior/posterior curve of the implants. Hybrid dentures are generally made of acrylic resin and metal or metal and porcelain (**Figure 6**) [47].
