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Dental Treatment 2018
Dentistry and Craniofacial Research
ISSN: 2576-392X
Page 39
September 10-11, 2018
Zurich, Switzerland
25
th
International Conference on
Dental Treatment
Objective:
This paper reports on the buffering and acid-resistant
properties of a modified eggshell-titanium composite against
erosive acids.
Materials & Methods:
Eggshell-titanium EB-TiO
2
was prepared
by ball milling eggshell powder and titanium dioxide. Fourier
transform infrared spectroscopy (FTIR), x-ray diffraction
(XRD), transmission electron microscopy (TEM), were used to
characterize EB-TiO2. The buffering property against lactic and
citric acid at pH 2, 4, and 5 were measured using pH meter. Five
brands of toothpastes (Colgate, Colgate Sensitive, Aquafresh,
Oralwise, and Sensodyne) were used to assess the acid-
resistant properties of EB-TiO2. Enamel model were simulated by
dissolving each brand of toothpastes with eggshell (control) and
EB-TiO2. The samples were exposed to citric and lactic acid of
pH 2. The average slope (kPa/s) was measured using a pressure
sensor. ANOVA was used to analyze the kPa/s values (α =0.05).
Results:
TheFTIR, XRDanalysissuggests thesurfacemodification
of EB-TiO2. The TEM image revealed nonhomogeneous shaped
particles with an average size of 13 nm. The pH test results
showed that the buffering properties of eggshell and EB-TiO
2
were comparable. Significant differences were observed in the
acid resistance properties of the samples exposed to both citric
and lactic acids (P<0.05). The colgate toothpaste infused with
eggshell powder had the highest mean kPa/s values, whereas EB-
TiO
2
had the lowest kPa/s values.
Conclusion:
The salient features of this study indicate that
modification of eggshell with titanium dioxide does not affect
its carbonate buffering properties. Connecting the kPa/s values
to acid resistant properties, EB-TiO
2
effectively reduces erosive
attacks when added to toothpaste.
Biography
Stanley C Onwubu has graduated his Master’s degree at the Durban Uni-
versity of Technology cum laude in 2016. He is currently in his third year
studying towards his PhD at Durban University of Technology. He has pub-
lished articles and book chapters in reputed journals. He strongly has pas-
sion in the development of new dental materials from recycled materials.
He has previously worked on new abrasive materials using waste eggshells
for polishing poly methyl methacrylate resin dentures. His current doctoral
research focus on remineralization of damaged teeth using nano-sized tita-
nium dioxide modified eggshell powder with a view of developing a mathe-
matical model to predict dentine remineralization.
profstan4christ@yahoo.comExploring the potential of a modified nano-dental
eggshell-titanium dioxide material against erosive acids
Stanley C Onwubu
1
, Phumlane S Mdluli
1
and
Shenuka Singh
2
1
Durban University of Technology, South Africa
2
University of KwaZulu-Natal, Campus Name, South Africa
Stanley C Onwubu et al., J Dent Craniofac Res 2018, Volume 3
DOI: 10.21767/2576-392X-C3-008