The concept of human dental occlusion represents much more than the mere physical contact of the biting surfaces of opposing teeth. It is not a static, unchanging, structural relationship, but rather a dynamic, real, physiological relationship between different tissue systems. It is best defined as the functional relationship between the components of the masticatory system, which includes the teeth, the periodontium, the neuromuscular system, the temporomandibular joints and the craniofacial skeleton. Biologically, occlusion represents a coordinated functional interaction between different cell populations of the masticatory tissue systems that differentiate, model, remodel, destroy and regenerate. When the functional balance of the masticatory system is disturbed or when occlusion is restored by various types of prosthetic restorations, specific goals of occlusal treatment become important, especially today with the rapid insertion of dental implants. The aim of this chapter is to highlight the characteristics of dental occlusion in relation to the characteristics and requirements of ‘prosthetic occlusion’ for different types of prosthetic restorations supported by natural teeth, gingiva, alveolar ridges and dental implants. A particular focus in writing the chapter is the analysis of the scientific literature on the interrelationship between the so-called occlusion concepts and the biomechanical aspects of different types of implant prosthetic restorations.

Titanium and titanium alloys have been used in dentistry for many years, to manufacture dental implants and other prosthetic appliances. Due to their excellent mechanical properties, corrosion resistance, and biocompatibility, they can completely replace the use of traditional alloys in modern dentistry. With the progress and development of new technologies, the three-dimensional (3D) printer was designed, namely the technology of creating three-di- mensional physical objects from digital data (CAD-CAM system). The case presented in the paper describes the way of the manufacturing of titanium-ceramic bridg- es, with the help of computer-aided design and printing (CAD-CAM).