Temporomandibular joint reconstruction (TMJR) is often required for patients with severe and/or refractory TMJ disease who have failed conservative treatment. TMJR helps improve masticatory function and is linked to improved quality of life outcomes. Alloplastic reconstruction is currently considered the treatment of choice for most serious TMJ disorders due to its many advantages, including but not limited to early recovery, consistent long-term outcomes and significant improvements in the function of the jaw. Two types of TMJR prostheses are available for reconstruction, broadly speaking: 1) inventory, and 2) custom-made prostheses. The purpose of this article is to provide a brief overview of TMJR's fundamental principles and concepts to the reader while referring to applicable existing literature.