Mumtaz-ul Islam, Tahir Ali Khan, Mohtada Hassan, Aiman Khan, Nayab Amin, Raham Zaman.
Evaluation of flexural strength of composite by addition of dental amalgam powder: a pilot study.
Pak Oral Dental J Jan ;35(2):299-303.

Dental composites are showing versatility in the field of restorative dentistry. Strength is main issue for their use especially in stress bearing area. Present study was aimed to evaluate the flexural strength of dental amalgam incorporated nano filled hybrid composite. Mechanical incorporation of a commercially available dental amalgam powder in nano filled hybrid composite was performed through amalgamator. Specimens were prepared and analyzed according to ISO standard No. 4049. Specimens analyzed were six (n=3) for each group. Null hypothesis for the study was no difference in the flexural strength of a commercially available dental composite and the prepared one which was rejected by the test statistics. Flexural strength of the control material was 90 Mpa while for the test material was 106.12 Mpa. Results showed a marked difference in the values of flexural strength of both the materials. Flexural strength can be increased by incorporating dental amalgam powder. Dental amalgam powder is a potential candidate for a high flexural strength and antibacterial composite. The study needs more trials on different aspects and evaluation of mechanical properties.

PakMediNet -Pakistan's largest Database of Pakistani Medical Journals - http://www.pakmedinet.com