1Post Graduate Student, Department of Public Health Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, India
2Reader, Professor, Department of Public Health Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, India
3Nano Bio Science Lab, Department of Public Health Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, India
4Reader, Department of Public Health Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, India
*Corresponding Author: D. Srisakthi Doraikannan, Department of Public Health Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, No: 162, Poonamalle High Road, Chennai-600 077, Tamil Nadu, India. Email: drsrisakthiphd@gmail.com, Telephone: +91-8122399966
Online published on 27 March, 2020.
This study was conducted to comparatively evaluate the bleaching efficacy of Carbamide Peroxide, Fluoridated Carbamide Peroxide and Nanohydroxyapatite reinforced Carbamide Peroxide
An in-vitro experimental study was carried out on 18 sound human maxillary fully erupted
Premolars extracted stored in phosphate buffer saline solution (PBS). They were segregated in to
3 Groups (Group I, Group II and Group II) consisting of 6 samples in each group. Their UV transmission wavelengths between 380–780 were determined using Spectrophotometer. The samples of the three groups were subjected to bleaching treatments with 10% Carbamide Peroxide, Fluoridated Carbamide Peroxide and Nanohydroxyapatite reinforced Carbamide Peroxide respectively. Spectrophotometric analysis was carried out and data were tabulated in Microsoft Excel for transferred to SPSS for analysis.
It was observed that the bleaching procedure significantly changes the enamel translucency, making it opaquer. It was found in our study that Fluoridated Carbamide Peroxide has a superior bleaching efficacy showing a mean value of 0.4±0.88 prior treatment which increased to 3.3±2.32 post treatment with the bleaching agent than Nanohydroxyapatite reinforced Carbamide Peroxide. The efficacy of 10% carbamide peroxide was found to have least efficacy. The study showed that the mean value of samples in group III was the highest (3.3±2.32) followed by group II (1.9±0.43) and group I (1.7±2.26).
Fluoridated Carbamide Peroxide had superior bleaching effect compared with Nanohydroxyapatite reinforced Carbamide Peroxide.10% carbamide peroxide was found to have the least efficacy than other combinations
Nanohydroxyapatite, Fluoridated Carbamide Peroxide, Human extracted premolars, Teeth
