2019-10-15 C20 ADA Lower Jaw

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Smoothness is achieved when the occlusal surfaces of the teeth are well-coordinated and function in harmony with each other. The overall anatomy of the jaw plays a crucial role in this coordination, ensuring that the lower teeth glide smoothly over the upper teeth without any obstacles. Proximal contacts between adjacent teeth also contribute to smoothness by maintaining proper alignment and preventing excessive wear on the enamel. Centric stops are vital for smoothness as they allow the jaw to come to rest in a neutral position, absorbing shocks and stresses during function. The duplication of the facial surface of the teeth helps maintain symmetry and balance, resulting in a more comfortable and harmonious occlusion.