This paper introduces a new class of event-triggering mechanisms (ETMs) for event-triggered control systems, characterized by the introduction of an internal dynamic variable. This dynamic ETM is designed to improve the efficiency of computational and communication resources in cyber-physical systems. The stability of the closed-loop system is proven, and the influence of design parameters on the decay rate of the Lyapunov function is discussed. For linear systems, a lower bound on the inter-execution time is established as a function of the parameters, and the impact of these parameters on a quadratic integral performance index is studied. Simulation results are provided to illustrate the theoretical findings. The paper also explores the choice of parameters to optimize the system's behavior and performance.This paper introduces a new class of event-triggering mechanisms (ETMs) for event-triggered control systems, characterized by the introduction of an internal dynamic variable. This dynamic ETM is designed to improve the efficiency of computational and communication resources in cyber-physical systems. The stability of the closed-loop system is proven, and the influence of design parameters on the decay rate of the Lyapunov function is discussed. For linear systems, a lower bound on the inter-execution time is established as a function of the parameters, and the impact of these parameters on a quadratic integral performance index is studied. Simulation results are provided to illustrate the theoretical findings. The paper also explores the choice of parameters to optimize the system's behavior and performance.