A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Effect of ethanol treatment on mechanical properties of heat-polymerized polymethyl methacrylate denture base polymer
Tekijät: Santhosh Basavarajappa, Abdul Aziz Abdullah Alkheraif, Saleh M. Alhijji, Jukka Pekka Matinlinna, Pekka Kalevi Vallittu
Kustantaja: JAPANESE SOC DENTAL MATERIALS DEVICES
Julkaisuvuosi: 2017
Journal: Dental Materials Journal
Tietokannassa oleva lehden nimi: DENTAL MATERIALS JOURNAL
Lehden akronyymi: DENT MATER J
Vuosikerta: 36
Numero: 6
Aloitussivu: 834
Lopetussivu: 841
Sivujen määrä: 8
ISSN: 0287-4547
eISSN: 1881-1361
DOI: https://doi.org/10.4012/dmj.2016-423
Verkko-osoite: https://www.jstage.jst.go.jp/article/dmj/36/6/36_2016-423/_article
Tiivistelmä
This laboratory study was assessing the nano-mechanical properties (NMP), surface roughness (S-a), and topographic changes caused by ethanol on the surface of heat-polymerized denture base polymers at different time past dough stage. Specimens of heat polymerizing acrylic resin (Interacryl Hot, Interdent, Celje, Slovenia) of size 10x10x3 mm were prepared, wet ground, and polished for uniform smoothness and treated with ethanol in concentrations of 40, 70, and 99.9% for 30, 60, and 120 s and statistical analysis was done. Some statistical significance for S-a were highest with 120 s exposure to 40% ethanol. NMP were the highest for specimens treated with 99.9% ethanol concentration for 120 s, on specimens prepared 30 min past the dough stage. This study suggested that heat-polymerized denture base polymers are prone for changes by ethanol which alters mechanical properties and surface topography. Dough time influenced the ethanol resistance.
This laboratory study was assessing the nano-mechanical properties (NMP), surface roughness (S-a), and topographic changes caused by ethanol on the surface of heat-polymerized denture base polymers at different time past dough stage. Specimens of heat polymerizing acrylic resin (Interacryl Hot, Interdent, Celje, Slovenia) of size 10x10x3 mm were prepared, wet ground, and polished for uniform smoothness and treated with ethanol in concentrations of 40, 70, and 99.9% for 30, 60, and 120 s and statistical analysis was done. Some statistical significance for S-a were highest with 120 s exposure to 40% ethanol. NMP were the highest for specimens treated with 99.9% ethanol concentration for 120 s, on specimens prepared 30 min past the dough stage. This study suggested that heat-polymerized denture base polymers are prone for changes by ethanol which alters mechanical properties and surface topography. Dough time influenced the ethanol resistance.
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