The study aimed to evaluate the effectiveness of in-office bleaching and associated tooth sensitivity on application of nano-calcium phosphate paste as desensitizing agent. Bleaching was performed with 35% hydrogen peroxide gel in 40 patients who were randomly divided into placebo and nano-calcium phosphate paste groups. Bleaching efficacy (BE) was evaluated using a value-oriented Vita shade gu...

OBJECTIVES To investigate the stain removal ability of melamine sponge before aesthetic tooth whitening in extracted teeth. METHODS Melamine sponge of thickness 40 mm was compressed and the destruction of the partition wall structure during the compression process was examined under a stereoscopic microscope. An extracted human tooth was cleaned by normal polishing or with melamine sponge for...

Objective: To evaluate the influence of acid erosion caused by daily intake lemon juice or apple cider vinegar, associated with immediate dental whitening, on bovine enamel. Materials and Methods: 30 teeth were sectioned to obtain enamel blocks distributed into three groups (n = 10): G1- Tooth whitening 35% hydrogen peroxide; G2- peroxide + G3 - vinegar. Treatments performed for 21 days, varnis...

AIM To develop and evaluate a reproducible intrinsic discolouration model in vitro, based on tea, which would allow the effectiveness of bleaching to be evaluated. METHOD The crown portions of extracted human third molars were sectioned bucco-lingually in half. Colour assessments were made at baseline, post staining and post whitening using a standard clinical shade guide (SG), a shade vision...

Objective: The desire of individuals to have whiter teeth increases the interest in tooth whitening products. Our aim was vitro study effect hydrogen peroxide, blue covarine and active charcoal containing toothpastes on human teeth. Materials Methods: A total 40 extracted incisor were used study. To measure toothpastes, divided into four subgroups placed phantom jaw model. Then, daily brushing ...

A pleasing appearance and bright smile greatly enhance oneʼs personality. Discoloration, especially when the anterior teeth are affected, puts a significant disturbance of aesthetics can decrease patient’s self esteem. Public demand for esthetic dentistry, including tooth whitening has increased in recent years. Discoloration is common problem caused by either extrinsic or intrinsic factor. Now...