Introduction: Todays in human and animal researchs addressing the ethical principles is more, but still less attention is dental researchs. The aim of this study to evaluate compliance with ethical codes at professional theses of Isfahan dental school done in a period of 15 years (2001-2015).
Materials & Methods: In this cross-sectional study that was performed on 300 thesis of dental college, at first a checklist of ethics codes in working with human and animal subjects was prepared and in next level theses information was gathered by this checklist and valuated with Two-way analysis of variance and least significant difference test (LSD)(a=0.05).
Results: A total of 70 on human study, in 38 cases (%54.2) written consent and in 10 cases (%14.2) oral consent was obtained. In 46 cases (%65.7) subjects were enrolled voluntarily and in 18 cases (%25.7) had consciousness about the power to withdraw from the study at any time. In 20 cases (%52.6) had been referred to the compensation. A total of 51 on animal studies (%46.5) of ethical codes was compliance and in 36 cases (%70.5) of donor organizations were mentioned.
Conclusion: Although the general trend comply with ethical codes in residential studies is improving but it seems that there is a long way to achieve the ethical principles in human and animal studies.