Introduction: Maxillofacial materials are used to replace missing facial parts which have been lost through disease or trauma. They are usually comprised of poly (dimethylsiloxane) (PDMS) elastomers. Methods: The study was conducted using commercially available silicone elastomer used for the fabrication of maxillofacial prosthesis and UV shielding Titanium di-oxide nano- oxide particles. Various amounts of TiO2 nano-oxide particles were added to the silicone elastomer: 0%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%. A total of six experimental groups were created by combining silicone elastomer (Cosmesil M511) with Ti O2nano- oxide particles. Statistical analysis was done using SPSS (Statistical Package for Social Sciences) software Version 20. One way analysis of variance (ANOVA) was used to test for any significant difference between the mean values of the materials tested. Post- test (Tukey post hoc) was used to determine whether the mean value of any particular material differed significantly from another specified material, while considering all the data. Result: Mean (SD) change values of tensile strength for Control Group, 0.5% TiO2, 1% TiO2, 1.5% TiO2, 2% TiO2, 2.5% TiO2, 3% TiO2 was 3.7576 ±.06807, 3.8280± .09558, 4.0610± .06883,4.4210± .05078, 4.7865± .04694, 5.0245± .04264, 4.0984±.06753, 4.2824± .45293 respectively. The Change in Tear Strengthwas for Control group, TIO21, TIO22, TIO23, TIO24, TIO25, TIO26 was 3.5002 ± .05726, 4.2855 ± .07651, 4.6525± .07911, 5.6763 ± .11152, 6.0038 ± .08204, 6.2561 ± .09440, 5.0689 ± .10089respectively. Change in Tear Strengthwas for Control group, TIO21,TIO22, TIO23, TIO24, TIO25, TIO26 was 528.8000± 6.03324, 518.5000± 4.92725, 500.6000± 10.52193, 476.7000± 4.66786, 459.8000± 7.40570, 442.4000± 5.46097, 420.2000± 6.25033respectively The Change in Tear Strengthwas for Control group, TIO21TIO22, TIO23, TIO24, TIO25, TIO26 was 34.8700 ± .40291, 35.8000± .64118, 37.0300± .75137, 38.1700± .35292, 40.0900± .43321, 41.5200± .44672, 41.6900± .28067 Respectively and these observed differences were statistically significant (p<0.05). Conclusion: Within the limitations of this study, it was concluded that the use of tulle for the reinforcement of maxillofacial silicone elastomer provided the latter with improved mechanical properties, especially in terms of tear resistance. However, these results should be further supported with more clinical studies.
