Abstract
Objectives Stem cell from human exfoliated deciduous teeth (SHED) has great potential for bone
tissue engineering and cell therapy for regenerative medicine. It has been combined
with biomaterials such as mixed of polymethylmethacrylate (PMMA) and hydroxyapatite
(HA) as candidates for synthetic bone graft biomaterial. The aim of this study was
to analyze the toxicity test of mixed PMMA-HA scaffold seeded with SHED and osteoblast
in vitro.
Materials and Methods SHED was isolated from the pulp of noncarious deciduous teeth and osteoblast cells
were cultured, and exposed to PMMA-HA scaffolds with three concentration groups: 20/80,
30/70, and 40/60 for 24 hours. Cytotoxicity test was performed by MTT assay to cell
viability.
Statistical Analysis Data were analyzed using IBM SPSS Statistics 25, one-way analysis of variance followed
by least significant difference test, considering the level of significance p-value less than 0.05
Results The percentage of SHED's viability was best in the PMMA-HA group with concentrations
of 20/80, followed by 30/70, and 40/60 with 87.03, 75.33, and 65.79%, respectively.
The percentage of osteoblast cell's viability was best in the PMMA-HA group with concentrations
of 20/80, followed by 30/70, and 40/60 with 123.6, 108.36, and 93.48%, respectively.
Conclusions Mixed PMMA-HA was not toxic for the SHED and osteoblast. This characteristic is the
initial requirement to be proposed as an alternative material for healing alveolar
bone defects. In vivo animal research is mandatory to confirm the use of PMMA-HA on
the alveolar defect model.
Keywords
viability - medicine - polymethylmethacrylate - hydroxyapatite - stem cell from human
exfoliated deciduous teeth - osteoblast