BACKGROUND One ideal property of a root-end filling material is its apical sealing ability. The aim of this in vitro study was to assess bacterial and dye microleakage of white and gray mineral trioxide aggregate (WMTA and GMTA), Portland cement and calcium-enriched mixture (CEM) cement used as root-end filling material, and to assess the agreement between these two test methods. MATERIALS AN...

INTRODUCTION Some studies in dental literature have proposed that short term and long term exposure of root dentin to calcium hydroxide predisposes it to fracture. Mineral trioxide aggregate (MTA) and a recently introduced endodontic material, calcium-enriched mixture (CEM) cement may be used instead of calcium hydroxide and might have an effect on the strength of root dentin. Therefore, the ai...

i ntroduction: the aim of the present study was to evaluate whether adding 2% chlorhexidine (chx) and 2.6% sodium hypochlorite (naocl) to calcium-enriched mixture (cem) cement would affect its setting time (st), or not. methods and materials: in this study, the setting time of cem cement was evaluated in three groups ( n =9) as follows: group 1; cem cement, group 2; cem cement+2% chx and group ...

INTRODUCTION Root-end preparation and restoration with an endodontic material are required when nonsurgical endodontic retreatment has failed or is impossible. The present clinical study reports the treatment outcomes of periradicular surgery using calcium-enriched mixture (CEM) cement. MATERIALS AND METHODS A prospective outcome study of periradicular surgery using CEM was conducted on 14 pe...

introduction: sealing ability of root-end filling materials is of great importance. it can be investigated by measuring microleakage. the purpose of this in vitro study was to evaluate microleakage of calcium enriched mixture (cem) cement in two different media including phosphate buffer solution (pbs) and distilled water. materials and methods: twenty single-rooted human teeth were selected. a...

INTRODUCTION The aim of this study was to compare the marginal adaptation of mineral trioxide aggregate (MTA) and calcium-enriched mixture(CEM) cement apical plugs in open apex teeth in dry, blood- and saliva-contaminated canals. METHODS AND MATERIALS A total of 120 human extracted single-rooted teeth were used. The teeth were decoronated and canals were cleaned and shaped up to #80 K-Files. ...

PURPOSE To evaluate the clinical performance of inlays and onlays luted with two different resin cements, mixed at different temperatures and to evaluate the marginal adaptation of the restorations. MATERIALS AND METHODS One hundred IPS e.max restorations (82 onlays, 18 inlays; 84 molars, 16 premolars) were placed in 50 patients (28 females, 22 males, mean age, 33 years). The restorations wer...

diabetes mellitus is a chronic disease which affects the healing ability of the pulp and periodontium. the aim of the present study was to assess the histopathologic response of dental pulp to pulp capping using mta or cem cement in diabetic rats. thirty two wistar male rats aged between 8 and 10 weeks (weight: 200-250g) were divided into two groups of diabetic (n=16) and healthy (n=16) animals...

introduction: in cases of limited access to the surgical site, an alternative approach is to obturate the canal prior to surgery. endodontic surgery is subsequently performed by root-end resection without retro-cavity preparation. this in vitro study was designed to compare the sealing ability of resected roots filled with either mineral trioxide aggregate (mta) or calcium enriched mixture (cem...

introduction: the purpose of this laboratory study was to evaluate the effect of acidic ph on the sealing ability of calcium-enriched mixture (cem) cement and mineral trioxide aggregate (mta) apical plugs. methods and materials: seventy single-rooted human maxillary anterior teeth were recruited. the teeth were randomly divided into 4 experimental groups ( n =15), and 1 negative and 1 positive ...