Nowadays, there is a large variety of dental restorative composite materials on the market, making it difficult to select the proper one. The mechanical properties of various dental materials determine how long they endure when used in the mouth. On the other hand, the therapeutic efficiency of these restorative materials cannot be predicted solely based on their mechanical properties. These features, on the other hand, help with the examination of the impact of changes in their composition. As a consequence, these tests can help the clinician choose the right material. The various mechanical properties can be investigated using a variety of laboratory experiments. The common laboratory tests used to evaluate the mechanical characteristics, composition, and classification of dental composite materials, as well as the factors that influence mechanical qualities, are discussed in this study.