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   Evaluation of physicochemical properties of root-end filling materials using conventional and micro-CT tests  
   
نویسنده torres f.f.e. ,bosso-martelo r. ,espir c.g. ,cirelli j.a. ,guerreiro-tanomaru j.m. ,tanomaru-filho m.
منبع journal of applied oral science - 2017 - دوره : 25 - شماره : 4 - صفحه:374 -380
چکیده    Objective to evaluate solubility,dimensional stability,filling ability and volumetric change of root-end filling materials using conventional tests and new micro-ct-based methods. material and methods solubility (loss of mass) after 7 and 30 days,and dimensional stability (in mm) were evaluated in accordance with carvalho-junior,et al. 7 (2007). the filling ability and volumetric change (in mm3) were evaluated by micro-ct (bruker-microct,kontich,belgium) using resin models with cavities 3 mm deep and 1 mm in diameter. the cavities were filled with materials to evaluate filling ability,and then scanned by micro-ct. after 7 and 30 days immersed in distilled water,the filled cavities were scanned again to evaluate the volumetric change. mta angelus (mta),biodentine (bio) and zinc oxide-eugenol cement (zoe) were evaluated. data were submitted to analysis of variance (anova) and tukey’s test with 5% significance level. results the results suggested correlated or complementary data between the proposed tests. at 7 days,bio showed higher solubility and at 30 days,showed higher volumetric change in comparison with mta (p<0.05). with regard to volumetric change,the tested materials were similar (p>0.05) at 7 days. at 30 days,they presented similar solubility. bio and mta showed higher dimensional stability than zoe (p<0.05). zoe and bio showed higher filling ability (p<0.05). conclusions zoe presented a higher dimensional change,and bio had greater solubility after 7 days. bio presented filling ability and dimensional stability,but greater volumetric change than mta after 30 days. micro-ct can provide important data on the physicochemical properties of materials complementing conventional tests. © 2017,faculdade de odontologia de bauru. all rights reserved.
کلیدواژه Calcium silicate; Endodontics; Physical properties; X-ray microtomography
آدرس universidade estadual paulista,faculdade de odontologia,departamento de odontologia restauradora,araraquara,sp, Brazil, universidade federal da bahia,curso de odontologia,departamento de clínica integrada,salvador,ba, Brazil, universidade estadual paulista,faculdade de odontologia,departamento de odontologia restauradora,araraquara,sp, Brazil, universidade estadual paulista,faculdade de odontologia,departamento de diagnöstico e cirurgia,araraquara,sp, Brazil, universidade estadual paulista,faculdade de odontologia,departamento de odontologia restauradora,araraquara,sp, Brazil, universidade estadual paulista,faculdade de odontologia,departamento de odontologia restauradora,araraquara,sp, Brazil
 
     
   
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