Limits...
Effect of different pH solvents on micro-hardness and surface topography of dental nano-composite: An in vitro analysis.

Khan AA, Siddiqui AZ, Al-Kheraif AA, Zahid A, Divakar DD - Pak J Med Sci (2015 Jul-Aug)

Bottom Line: 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.

View Article: PubMed Central - PubMed

Affiliation: Aftab Ahmed Khan, MSc, M.Bioeth, B.D.S Researcher, Dental Biomaterials Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh 11433; Saudi Arabia.

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.

No MeSH data available.


Related in: MedlinePlus

SEM micrographs of nano-filled composite specimen immersed in lactic acid atdifferent magnifications.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4590396&req=5

Figure 3: SEM micrographs of nano-filled composite specimen immersed in lactic acid atdifferent magnifications.


Effect of different pH solvents on micro-hardness and surface topography of dental nano-composite: An in vitro analysis.

Khan AA, Siddiqui AZ, Al-Kheraif AA, Zahid A, Divakar DD - Pak J Med Sci (2015 Jul-Aug)

SEM micrographs of nano-filled composite specimen immersed in lactic acid atdifferent magnifications.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4590396&req=5

Figure 3: SEM micrographs of nano-filled composite specimen immersed in lactic acid atdifferent magnifications.
Bottom Line: 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.

View Article: PubMed Central - PubMed

Affiliation: Aftab Ahmed Khan, MSc, M.Bioeth, B.D.S Researcher, Dental Biomaterials Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh 11433; Saudi Arabia.

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.

No MeSH data available.


Related in: MedlinePlus