Abstract
Objective:Erosion of tooth surface is attributed to recent shift in diet pattern and frequent use of beverages. The aim of this research was to evaluate the effects of different beverages on surface topography and hardness of nano-filled composite material.Methods:Sixty flat disc shaped resin composite samples were fabricated and placed in distilled water for 24 hours. After 24 hours test samples were dried and divided into 4 groups. Group A (n=15) specimens were placed in tight amber bottle comprising 25 ml of artificial saliva. Similarly Group B, C and D were stored in equal amounts of orange juice, milk and coca cola drink respectively. Samples were checked for hardness and surface changes were evaluated with scanning electron microscopy.Results:There were strong significant difference observed in samples immersed in orange juice and artificial saliva. A strong significant difference was seen between Group D and Group A. Group A and Group C showed no significant difference. The micro-hardness test showed reduced values among all samples.Conclusion:Beverages consumed daily have a negative influence on hardness and surface degradation of nano-filled dental composite. Comparatively, nano-filled composites possess higher surface area to volume ratio of their fillers particle size may lead to higher surface roughness than other resin based dental biomaterials.
Highlights
Dental filling materials are required to possess long term durability in dynamic oral conditions
Dental restorative materials are widely used in children and adolescents, who consume different types of soft drinks leading to acidic environment.[1]
After hours specimens were dried and divided into 4 groups i.e. Group A (n=15) specimens were kept in tight amber coloured bottle containing ml of artificial saliva; Group B (n=15), C (n=15) and D (n=15) specimens were stored in equal amount of orange juice, milk and coca cola drink respectively
Summary
Dental filling materials are required to possess long term durability in dynamic oral conditions. Dental restorative materials are widely used in children and adolescents, who consume different types of soft drinks leading to acidic environment.[1] Esthetic dental biomaterials are extensively used in anterior and posterior restorations. They are available with different characteristics and shades. Four types of materials are commonly used for direct restorations: resin composites, polyacid modified resin composites, glass-ionomer cement and resin modified glass-ionomer cement. Resin composites play key role in direct tooth colored restorations.[2] Dentistry has been going through novel variations and advancements which tend to develop better techniques and materials for treatment of patients, who are seeking for esthetic and therapeutic treatment. The filler particles and resin are bonded covalently by a coupling agent commonly known as 3-(trimethoxysilyl) propyl methacrylate (MPS), imparting better mechanical properties.[5]
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