OBJECTIVES: This double blind randomized clinical trial evaluated the longevity of the whitening effect (6-month follow-up) of two carbamide peroxide concentrations used in at-home vital bleaching. METHODS: Ninety-two volunteers with shade mean C1 or darker for the six maxillary anterior teeth were randomized into two balanced groups (n=46) according to bleaching agent concentration: 10% (CP10) or 16% (CP16) carbamide peroxide. Patients were instructed to use the whitening agent in a tray for 2h/day during 3 weeks.
OBJECTIVES: This double-blind randomized clinical trial aimed to evaluate the whitening effect of two at-home tooth bleaching agents and the effect of dietary habits after 2 years. The patients' view about bleaching longevity was also investigated. METHODS: Ninety-two subjects with mean shade of C1 or darker for the six maxillary anterior teeth were randomized into two groups (n=46) according to the carbamide peroxide (CP) concentration: 10% (CP10) or 16% (CP16). The treatment was performed using the whitening agent in a tray for 2h/day during 3 weeks.
Annals of the Royal Australasian College of Dental Surgeons
One cannot practise dentistry without realising that for the patient, the control of pain and fear is extremely important. Modern technical advances have made painless dentistry a reality and yet research has shown that more people avoid dental treatment through fear of pain than all other factors combined. Dental surgeons and psychologists agree that patients frequently magnify their unpleasant dental experiences.