Motivation is the factor for many activities such as learning (
1). Motivation gives power and direction to individuals (
2). Educational motivation is a prerequisite to learning and it is a factor that helps the leaner to maintain the continuity of learning. Undoubtedly, career choice is one of the most fundamental life decisions. By choosing a job, a person should spent more cost and time for his/her profession training, on the other hand, the conducted investigations have shown that after completing professional education, profession shift is possible usually in some courses rarely with high cost and time. So, choosing academic discipline should be done with high precise considerations (
2). However, learners with stronger education incentive can do more educational activities and obtain more success (
1). Several factors are involved in choosing the field of study and they can be divided into two external and internal groups. In most cases, internal factors are controllable by the person; however, the external factors are out of the individual control and indirectly influence human choices. For the external factors, we can mention family, educational environment, age groups, visual media, and socio-economic areas (
3). The personality of individuals is one of the most effective factors in choosing their academic discipline (
4). Among them, selecting academic disciplines and especially courses related to medical sciences should be done more carefully because they are relevant to human health, and also interest to profession is one of the preconditions for professional services with high quality to clients (
4). In recent decades, more attention has been paid to the vital role of density and medical disciplines in maintaining and promoting the health of all classes of people in different societies. And changes in political, social and economic improvements have a positive effect in promoting the status of health care workers in the society (
5). The most important role of dentists is to improve the quality of dental care and provide health care services to all peoples in the society (
6). Unfortunately, in our country it seems that a large part of students enter this field of study by entrance examination and usually top-ranking peoples choose this discipline regardless of their interests and talents. This study may cause problems for some of them. Therefore, investigating the motivations of dental students who are in the top list of the entrance exam is so important to choose this discipline (
7), according to this fact, choice of discipline will have a process for each person and during the study, they should spend more cost and time to enter into the profession (
8). The studies have shown that the students of dental discipline are in more favorable mood than other students because they do not have any concern about employment after graduation (
9). The recent studies have shown that in addition to different motivations to enter to dental discipline, there are many factors such as gender, race, and education level of the parents that influence the students’ motivation in choosing their field of study (
10). According to studies conducted in Brazil by the most educated and qualified dental surgeons in the world, it was clear that the reasons and motivations of students are not fixed in this discipline and influenced by inside and environmental factors (
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13). Vavid Dastjerdi et al. investigated the motivations of medical and dental students of Shahid Beheshti university of medical sciences in choosing their academic discipline and results showed that the majority of dental students consider the high social status, and high income and the ability to self-employment as the most important influential factors for choosing this discipline (
14). A study was conducted by Aghili et al. (
15) in 2012 to determine the factors affecting the choice of discipline among dental students of Tehran University of Medical Sciences and Shahid Sadoughi in Yazd in 2012 - 2013. Another study was conducted by Kazemizadeh et al. in 2010 to determine the motivations to choose the discipline among medical and dental students of Rafsanjan university of medical sciences. The results of the above-mentioned studies showed that high professional and social status is the most important reason to choose this discipline (
16). Also, another study was conducted by Amani et al. (
17) in 2012 to determine the motivations for entering to dentistry discipline among first-year students of dental discipline of Ardabil university of medical sciences. Another study was conducted by Neamatollahi et al. in 2010 to determine the motivations and views of students in Mashhad University of Dental Science to choose their discipline. The results showed that the student’s motivations in choosing their discipline include appropriate income, social status, job security and appropriate working time (
7). Changes in the medical training system of the country are one of the major policies of ministry of health. So, more attention should be paid to inside motivations of this system along with other changes. The choice of field of study and job is one of the decisions made is affected by motivations, and is not similar among males and females. Meanwhile, in order to provide appropriate context and background for employment in good jobs, it seems necessary to study and investigate the aptitudes and individual desires (
18).