Tooth discoloration treatment has become difficult, especially as individuals seek for white teeth and good appearance. Lightening was thought to be the most cost-effective and conservative cosmetic treatment. Discolored teeth can have an effect on a person's self-image, physical attractiveness, and self-confidence., At-home, and over-the-counter lightening methods are frequently used for both non-vital and vital lightening. This study was an observational cross-sectional study, pretested to assess opinions regarding various aspects of teeth whitening among clinical dental students. An electronic questionnaire was circulated among clinical dentistry students from several universities, and percentages for categorical variables were computed. The connection between the category variables was evaluated using the Chi-square test. All of the data was evaluated using a p0.05 value as a significant value. The survey was completed by 2386 dental students and interns from 14 different governmental and private dentistry colleges in Saudi Arabia. Females made up 68.4% of the participants, while males made up just 31.6%. Dental interns have a higher level of knowledge 42% followed by 33.7% 5th year students, and 22.9% of 6th year students. The majority of participants 62.8% did not use any lightening techniques. The majority of participants 58.8% attend governmental universities, while the remainder attend private universities. Finally, the findings of the study showed that clinical dental students who performed lightening treatments had superior knowledge and attitudes regarding tooth lightening materials and methods, followed by dental interns, 6th year students, and 5th year students.
