Mon T, Norkhafizah S, Nurhidayati H. Factor influencing patient satisfaction with dental appearance and treatments they desire to improve aesthetics. BMC Oral Health. 2011; 11: 6.
 Hathere S, Lynch CD, Burke FM, Ericson D, Gilmour AS. Attitudes of final-year dental students to bleaching of vital and non-vital teeth in Cardiff, Cork, and Malmö. J Oral Rehabil. 2011; 38: 263-269.
 Terry DA, Geller W. Esthetic and restorative dentistry: material selection and technique. 2nd ed. Quintessence Publishing Co Inc.: Milan; 2012. p. 677-680.
 Abu Bakr Muḥammad Ibn Zakariya Al-Razi. The Book of Medicine Dedicated to Mansur. 1th ed. Research and proposition by Hazem Bakri Sedighi and translation by Majid Ebrahim Zaker: Publication of the Center for Ethics and Medical History of Tehran University of Medical Sciences; 2008. p. 643.
 Feinman RA. Reviewing vital bleaching and chemical alterations. J Am Dent Assoc. 1991; 122: 55-56.
 Karbasi*Kheir M. Overview of dental history in Iran. Med Hist J. 2014; 4: 137-154.
 Haywood VB, Heymann HO. Nightguard vital bleaching. Quintessence International. 1991; 22: 515-523.
 Paliska J, Stipetić A, Tarle Z, Ristić M, Ban T, Vujičić N, et al. Colorimetric Assessment of Different Tooth Whitening Procedures. Acta Stomatol Croat. 2011; 45: 258-267.
 Sulieman M, MacDonald E, Rees JS, Newcombe RG, Addy M. Tooth bleaching by different concentrations of carbamide peroxide and hydrogen peroxide whitening strips: an in vitro study. J Esthet Restor Dent. 2006; 18: 93-100.
 Kwon SR, Ko SH, Greenwall LH, Goldstein RE, Haywood VB. Tooth whitening in esthetic dentistry: Principles and techniques. 1 st ed. Quintessence Publishing Co: London; 2009. p. 139-140.
 Klarić E, Par M, Profeta I, Matošević D, Tarle Z. Postoperative sensitivity after two in-office bleaching methods. Acta Stomatol Croat. 2011; 45: 100-109.
 Li Y, Greenwall L. Safety issues of tooth whitening using peroxidebased materials. Br Dent J. 2013; 215: 29-34.
 Klarić E, Marcius M, Ristić M, Sever I, Prskalo K, Tarle Z. Surface changes of enamel and dentin after two different bleaching procedures. Acta Clin Croat. 2013; 52: 419-429.
 Azodo CC, Ogbomo AC. Self-evaluated dental appearance satisfaction among young adults. Ann Med Health Sci Res. 2014; 4: 603-607.
 Mehl C, Wolfart S, Vollrath O, Wenz HJ, Kern M. Perception of dental esthetics in different cultures. Int J Prosthodont. 2014; 27: 523-529.
 Maghaireh GA, Alzraikat H, Taha NA. Satisfaction with dental appearance and attitude toward improving dental esthetics among patients attending a dental teaching center. J Contemp Dent Pract. 2016; 17: 16-21.
 Akarslan Z, Sadik B, Erten H, Karabulut E. Dental esthetic satisfaction, received and desired dental treatments for improvement of esthetics. Indian Journal of Dental Research. 2009; 20: 195-200.
 Samorodnitzky-Naveh GR, Geiger SB, Levin L. Patients satisfaction with dental esthetics. J Am Dent Assoc. 2007; 138: 805-808.
 Subait AA, Ali A, Hammad ZA, Alrumaih A, Al-Malki M, Al-faqih A, et al. Dental Aesthetics and Attitudes among University Students in Saudi Arabia, A Cross-sectional study. J Dent and Oral Disord. 2016; 2: 1022.
 Dozić A, Zukanović A, Bajsman A, Sečić S, Petaros A. Spectrophotometric Evaluation of Color Alterations of Teeth Exposed to Different Conditions in Time. Acta Stomatol Croat. 2011; 45: 247- 257.
 Nomay N. Public attitude and awareness towards their teeth color and dental bleaching in Saudi Arabia: A cross-sectional survey. Journal of Public Health and Epidemiology. 2016; 8: 45-52.
 Lajnert V, Kovačević Pavičić D, Pezo H, Stevanović A, Jović T, Šnjarić D, et al. Patients’ general satisfaction with the appearance of anterior maxillary teeth. Vojnosanit Pregl. 2017; 74: 520–525.
 Al-Zarea BK. Satisfaction with appearance and the desired treatment to improve aesthetics. Int J Dent. 2013; 2013: 912368.
 Yu H, Cheng SL, Zhou JY, Cheng H. A survey on general knowledge and influencing factors of dental aesthetics among three universities students in Fuzhou city. Shanghai Kou Qiang Yi Xue. 2017; 26: 510-515.
 Vallittu PK, Vallittu AS, Lassila VP. Dental aesthetics: A survey of attitudes in different groups of patients. J Dent 1996; 24: 335−338.
 Younis A, Al-Omiri MK, Hantash RO, Alrabab’Ah M, Dar-Odeh N, Abu HO, et al. Relationship between dental impacts on daily living, satisfaction with the dentition and personality profiles among a Palestinian population. Odontostomatol Trop. 2012; 35: 21-30.
 Karasneh J, Al-Omiri MK, Al-Hamad KQ, Al Quran FA. Relationship between patient′s oral health-related quality of life, satisfaction with dentition, and personality profiles. J Contemp Dent Pract. 2009; 10: E049-E056.
 Alkhatib MN, Holt R, Bedi R. Age and perception of dental appearance and tooth colour. Gerodontology. 2005; 22: 32–36.
 Strajnić L, Bulatović D, Stančić I, Živković R. Self-perception and satisfaction with dental appearance and aesthetics with respect to patients’ age, gender, and level of education. Srp Arh Celok Lek. 2016; 144: 580-589.
 Hatherell S, Lynch CD, Burke FM, Ericson D, Gilmour AS. Attitudes of final-year dental students to bleaching of vital and non-vital teeth in Cardiff, Cork, and Malmö. J Oral Rehabil. 2011; 38: 263-269.
 Tin-Oo MM, Saddki N, Hassan N. Factors influencing patient satisfaction with dental appearance and treatments they desire to improve aesthetics. BMC Oral Health. 2011; 11: 6.
 Al-Shiekh L, Muhammed MED, Muhammed AER, El-Huda MA, Hashim NT. Evaluation of dental students’ oral hygiene attitude and behavior using HU-DBI in Sudan. Science Postprint. 2015; 1: 1-4
 Wash TF, Rawlinson A, Wildgoose D, Marlow I, Haywood J, Ward JM. Clinical evaluation of the stain removing ability of a whitening dentifrice and stain controlling system. J Dent. 2005; 33: 413-418.
 Joiner A, Philpotts CJ, Alonso C, Ashcroft AT, Sygrove NJ. A novel optical approach to achieving tooth whitening. J Dent. 2008;36 Suppl 1: s8-s14.
 Diklić D, Klarić Sever E, Galić N, Spajić J, Prskalo K. Attitudes of Students of Different Schools of University of Zagreb on Tooth Bleaching. Acta stomatol Croat 2016; 50: 301-309.