The intention of this article consisted of presenting the principles the bioethical according to Beauchamp and Childress (charity, not-slander, autonomy and justice), with the intention of trying to solve difficult situations that appear actually odontologycal, when allowing a oriented approach the solution of the problem and sustaining the arguments that defend certain positions. The made procedures were bibliographical revision and the method consists of the reflection and the analysis. One concluded that the challenge in the work of the odontologist consists of turning its clinical and professional task an ethical task, as much and as soon as allows the patient to reach its last aim in the life, that is the happiness, not only because it alleviates the pain and thus it comes near her, but because it contributes giving a sense him that calm him and it tranquilizes; as far as possible the virtuous odontologist has to try to help the patient to be happy, through a qualitative change of the pain to something next with the benevolence and other principles of the bioethical.

The reflection of bioethics is based on concrete facts, principles and rules. The principles guide the health professional towards a particular approach in the solution of a problem, they can also fulfill the function of justification (1), they are general norms, they are necessary and sufficient to resolve the ethical dilemmas, they consist of rules that order the arguments and allow to solve the various situations (2), the principles and rules are considered to be prima facie and do not have absolute character, allowing to resolve conflict situations, based on the principle that prevails in the given health situation. Based on this and from the literature review and subsequent analysis, the principles of this discipline are related to the dental practice in what we consider a must be. Non-brief conclusions express the deep meaning of the reflection to which the present work led us.