Virtual Reality has made important contributions to the health care, especially in the training field, which aims to acquisition of knowledge and skills in performing certain procedures. A procedure still not simulated consists of making local anesthesia for dental treatment, specifically to block inferior alveolar nerve. The execution of this procedure has a high failure rate, increasing the risk to patients and the insecurity of beginners. Thus, and considering the complexity for creating a realistic simulation, this work aims to develop a computer system prototype based on Virtual Reality, for simulation of anesthesia procedure stage (needle insertion task), emphasizing the stage of the anesthesia administration procedure that involves the correct handling and needle insertion. Or in terms of Virtual Reality, the part that involves human-computer interaction, taking into account visual and haptic aspects. The haptic approach is an important part in computer systems of this kind and the realism is considered one of the main objectives in the development of these systems. Additionally, an analysis of human-computer interaction was examined, indicating that although there are still several technological limitations, the system can be regarded as an auxiliary training tool for the task, complementing traditional methods. Also, a perceptual objective metric for evaluation of haptic interaction was formulated, because in the literature the subjective ways dominate the tests and a metric found in the literature fails on certain situations, especially those related to the insertion needle, stage of the anesthesia procedure simulated in this study.