Background: Maintenance of color throughout the functional lifetime of restorations in teeth is needed for its durability. Color changes have been considered as the major problem of dental restorations. Long-term usage of pediatric liquid medications can stain the tooth as well as the restorative materials whose longevity and acceptability are directly proportional to its color stability. Aim: The present study aims to evaluate and compare the effect of pediatric drugs on the color stability of different esthetic restorations. Methodology: Three different restorative materials such as glass-ionomer cement, composite, and ACTIVA KIDS were used to prepare a total of 150 (50 from each) specimens. These specimens were divided into five experimental subgroups (n = 10), which were immersed in 5 different liquid medicines. The color stability of all specimens was evaluated by colorimeter before and after the immersion period. Results: Composites in iron supplements showed the highest color changes, and the least changes were seen in the ACTIVA KIDS - Ibuprofen group. Conclusion: ACTIVA KIDS is found to be the most resistant to discoloration followed by GIC and composite. Iron supplements showed the highest staining ability among all the medications.

Background. Pediatric endodontics is a field with constant evolution, resulting in the shifting of paradigms from the use of conventional hand files to rotary files for biomechanical preparation in primary teeth. Biomechanical preparation plays a crucial role in the success of root canal treatment. Primary teeth need special attention since they differ from permanent teeth in root canal morphology. Cleaning and shaping of the canals damage the root dentin, leading to dentinal cracks. Newer techniques for root canal preparation, including Ni-Ti rotary files and SAF system, have been developed for use in pediatric endodontics to overcome the drawbacks of conventional methods. The present study compared dentinal defects formed by rotary systems in primary teeth. Methods. Eighty primary teeth were included. The teeth were decoronated with a diamond disc. All the roots were inspected for any pre-existing cracks or craze lines under transmitted light under a stereomicroscope. The specimens were then divided into four groups (n=20): group 1: control, group 2: hand files (HF), group 3: ProTaper files, and group IV: SAF files. The samples were instrumented according to the group they were assigned to. Results. The HF and SAF groups exhibited fewer microcracks. Dentinal microcracks were observed in roots prepared with rotary ProTaper files. There were significant differences between HF/SAF and rotary files (P<0.05). Conclusion. Stainless steel hand K-files and SAF instruments resulted in fewer dentinal damage than the ProTaper Universal files. SAF exhibited satisfactory results with minimal or no crack formation.