The goal of this observational study is to examine the effect of designs using different aesthetic dental proportions made with the digital smile design program on the aesthetic perception of individuals of different ages, gender, and educational status.

The main questions it aims to answer are:

1. The golden ratio is the most aesthetic ratio known and accepted in dentofacial structures.
2. There is no significant difference between the aesthetic perception of dental students, dentists, specialist dentists and laypeople.

Participants will answer:

• The first 5 questions related that demographic data such as age, gender, and educational status.
• The smile designs of a woman and a man, prepared according to 8 different principles, will be evaluated by the participants according to the Likert scale.

Researchers will compare the 4th and 5th-grade students of a dentistry faculty, dentists, specialist dentists and laypeople to see the effect of smile design on facial aesthetic perception.

Inclusion Criteria:

• Anyone who can answer the survey online

Exclusion Criteria:

• individuals under the age of 18

4th and 5th-grade students of a dentistry faculty: 4th and 5th-grade students at the university where the researcher works (Trakya University, Faculty of Dentistry)

Dentists and specialist dentists: Dentists and specialist dentists working in health institutions in the country where the researcher is located (Republic of Türkiye)

Laypeople: People who came to the dental faculty for treatment, relatives and friends of the researcher.