Iraqi Academic Scientific Journals - IASJ

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Waterpipe Smoking Effect on Clinical Periodontal Parameters, Salivary Flow Rate and Salivary pH in Chronic ‎Periodontitis Patient

Saif Mohammed T. Al-Mufti, Saif S. Saliem

Journal of baghdad college of dentistry, 2018, Volume 30, Issue 1, Pages 63-68

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The estimation of the viable count of mutans streptococcus in waterpipe smokers and cigarette smokers

Maha A Mahmood, Ausama A Fathallh

Journal of baghdad college of dentistry, 2021, Volume 33, Issue 3, Pages 23-29

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Autopolymerizing acrylic resin is one of the most frequently used materials in dentistry, but it has relatively poor mechanical properties This study investigated the effect of the addition of poly vinyl pyrrolidone on transverse strength, impact strength and surface roughness of autopolymerzing acrylic resin. A total of 60 specimens were prepared, 30 specimens of each conventional and modified autoplymerizing acrylic.20 specimens of each groups were fabricated with dimensions of (64×10×2.5) mm to conduct the transverse strength and surface roughness tests, while the remaining 10 specimens of each group were fabricated with dimensions of (80×10×4) mm to perform the impact strength test. The results of this study showed that the modified autopolytmerized acrylic had significantly higher transverse strength, and significantly lower surface roughness values while there was no significant differences in impact strength value. It can be concluded that addition of Polyvinylpyrrolidone can improve transverse strength and surface roughness of autopolymerizing acrylic resin.

Tikrit Journal for Dental Sciences, 2013, Volume 2, Issue 2, Pages 145-153

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