Each patient is situated at a different position from routine in visiting dental practice. It is known that most patients, seeking dental care present a higher or smaller degree of stress. Majority of patients develop a degree of anxiety, depending on education, type of dental treatment or dentist’s behavior and that may be a result from the past, whereas others feel comfortable and they are pleased to be treated  .
Over the last 15 years, the terms “Quality of life” and “Health-related quality of life” have been seen increasingly in medical literature. There is still little research in the field of orthodontics and health-related quality of life. The conclusion as to whether orthodontic treatment of dentofacial deformities fit into the classic concept of health and disease is a difficult one  . One of the reasons frequently stated for undertaking orthodontic treatment is improvement in aesthetics and subsequent enhancement of psycho-social well-being  . It is thought that regularity of the dental arches might facilitate oral hygiene, and prevention of caries and periodontal disease is thus a perceived benefit of orthodontic treatment  .
Quality of life may be defined as a person’s sense of well-being that stems from satisfaction or dissatisfaction with the areas of life that are important to him/her.
The last tendency for quality of life, applied to oral health, allows it to be oriented to different social groups. And that’s the way to positive patient’s attitudes and social opinion about dental treatment   . Sometimes, low economic opportunities of the Bulgarian consumers of dental services define negative social attitude to the dentists. In particular, present incomes of the most ofBulgarians put themselves in a restricted access to implantology and orthodontic treatment.
The aim of the present study is to investigate of certain socio-demographic and economic components and their influence for the need of orthodontic treatment.
3. Materials and Methods
By using a sociological method of straight-group questionnaire the subjects have been asked to consider factors such as age and gender, oral health, according to expectations of needed orthodontic treatment and self-assessed dental esthetics  . In orderly to objectify statistical data a numerical scale―Visual Analogue Scale (VAS) was introduced   . By using Visual Analogue Scale every one of the undergraduates self-assessed its own dental esthetics with the choice of a number of means. The whole range 0 - 100 points has been divided into the following assessment groups:
・ From 0 to 24―poor esthetics
・ From 25 to 49―not very bad
・ From 50 to 74―good esthetics
・ From 75 to 99―very good esthetics
・ 100 points―perfect esthetics (ideal occlusion)  -  .
Statistical data are discussed by means of variation and nonparametric analyses. Findings and graphics are presented by computer software programs SPSS ver. 17.
The sample comprises 89 young adults from 22 to 34 years old. The experimental group is composed of 45 undergraduates from Medical University of Plovdiv. All of them are dental medicine students who being trained as dentists and acquiring of competences in the specialty. There are 44 undergraduates in the control group getting their professional competence as engineers at University of Food Technologies of Plovdiv without any dental education.
The mean age of the subjects in the experimental group is 24.90 ± 0.35 years. The mean age of the control group is 25.43 ± 0.7 years. Respondents from the experimental group have highest relative proportions of presentation in the age of 20 - 24 years―56.53 ± 7.10. The results are presented in Table 1:
It is seen in Table 1, that there is no statistical significance in comparing the relative proportions of both groups, P > 0.05, F = 0.37. All of them are undergraduates and this may be explained by the young age of contingents. Satisfaction with dentofacial appearance has also been found in previous studies to correlate with age  . Satisfaction with facial body image decreases with age. Consciousness about body image, including dental appearance, seems to increase with age, reaching a peak around the midteens  .
Previous studies have shown high correlation between socio-economic factors and consciousness for the need of orthodontic treatment  . In accordance with Profit criteria (cost―risk―benefit―quality) dental health services are not attainable by Bulgarian consumer just because this service has been for nothing in past 50 years  .
The results presented in Table 2 show how each respondent explains material status of his/her family. It’s interesting to note that no one of the control group assessed himself at a “very good” position. This status is confirmed by 13.3% ± 5.06% of experimental group. Both groups have nearly exposed relatively proportions at other rates of economic status in society.
The analysis of the measures related to the factor “residence” indicated that most of the undergraduates live in town―93.03% ± 3.88% and only 6.97% ± 3.88% in village. The same is the situation in control group about this factor―97.7% ± 2.29% live in town and 2.30% ± 2.29%―in village. Subjective rating of
Table 1. Respondent’s age distribution .
Table 2. General well-being of the family.
Table 3. Satisfaction from the received treatment .
oral health have been used in other recent studies identifying interesting, albeit not objective, relationships to socio-demographic parameters    .
After some time, unfavourable factors increase the pathology and orthodontic treatment become more expensive  . And that is the primary reason for patient’s lack of satisfaction from the dental procedure. This conflict points out that the communication between patient and dentist is socio-economic in essence. About the question” What is more important for you―patient satisfaction or dentist’s satisfaction from the received treatment?” are presented the next outcomes at Table 3:
To compare data for both groups confirmed that patient satisfaction of the conducted treatment is more important from dentist’s opinion to this question (55.8 ± 7.57% for experimental group and 68.18% ± 7.02%). “The dental profession has to ensure that we are able to justify our treatment plans, based on true clinical need, but also allowing patients to have an acceptable level of input”  and ethics is violated in cases of:
・ Unsatisfactory treatment,
・ Convincing patients to accept unnecessary services  .
The relationships between the need to improve oral aesthetics in the sense of imitation (“Do you know people with braces”) and the awareness of students are studied. For the following variables presented in Table 4, Spearman’s correlation is significant P < 0.01:
The data from Table 4 shows that the relationship between internet use and social media choice is high rs = 0.84. In fact, it is assumed that this is a normal
Table 4. Correlations between imitation as a factor for conducting orthodontic treatment and information via the Internet.
*Correlations are significant at P < 0.01.
manifestation of the possibility of more information when using the Internet. Internet is the possibility that any information found is useful to the potential patient who is interested in the stages associated with orthodontic treatment. This relationship is positive and significant―rs = 0.69. When specifying the Internet sources, the useful information found shows less dependence, but still remains significant―rs = 0.55 (P < 0.01). This fact gives reason to believe that the children who participated in the survey tend to trust the information they find on the Internet.
It is interesting to know how young people with varying dental esthetics forms their criteria about self-assessed dental image, smile and good oral-health. By using Visual Analogue Scale every one of the undergraduates self-assessed its own dental esthetics with the choice of a number of means.
The mean of VAS for the experimental group approaches to a “very good esthetics” division―75.72 ± 3.47 p. With 100 points are only 9.3% self-esteemed. This result explains due to stability knowledge and self-confidence of undergraduates in answering (decision) of their own oral-health problems. The mean value for age and VAS leave a space for subsistence of a significant feedback between age and VAS. Further research is required to establish the feedback correlation.
1) These findings suggest that there is a statistical significance of satisfaction from the dental esthetics in compared groups, P<0. 05. This fact is due to the higher educational criteria of undergraduates learning dental medicine. The students without medical education show higher satisfaction from their oral and facial image.
2) A significant correlation is invariant over age, sex and education in forming perceptions of needed orthodontic treatment and self-assessed dental esthetics.
3) The results confirm that favourable dental esthetics and previous orthodontic treatment are important variables in explaining certain socio-demographic and economic factors.
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