Premium
Primary assessment of a self‐adhesive gutta‐percha material
Author(s) -
Marending M.,
Bubenhofer S. B.,
Sener B.,
DeDeus G.
Publication year - 2013
Publication title -
international endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.988
H-Index - 119
eISSN - 1365-2591
pISSN - 0143-2885
DOI - 10.1111/j.1365-2591.2012.02117.x
Subject(s) - gutta percha , materials science , adhesive , dentistry , scanning electron microscope , bond strength , composite material , nuclear chemistry , chemistry , root canal , medicine , layer (electronics)
Aim To evaluate a prototype gutta‐percha material ( B io‐ G utta), which is claimed to work without sealer because of its incorporated ultrafine bioactive glass particles, in terms of its induction of p H and calcium phosphate (CaP) precipitates, and its self‐adhesiveness in root canals. Methodology B io‐ G utta was compared with conventional gutta‐percha ( GP , composition: 70 wt% Z n O , 30 wt% polyisoprene). Test and control materials ( N = 3) were immersed in phosphate‐buffered saline ( PBS ) at 37 °C for 30 days. The pH in the solution was monitored. Apparent C a P formation was assessed using scanning electron microscopy ( SEM ). The root canals of 33 single‐rooted teeth were filled by vertical compaction of heated B io‐ G utta, 33 control canals were filled with vertically compacted GP without sealer. Push‐out bond strengths associated with the filling materials in root cross‐sections from middle root thirds was determined 1, 8, and 30 days after root filling ( N = 11 per group). These values were compared between groups using one‐way anova (α < 0.05). Results B io‐ G utta induced a high p H in the PBS solution, which plateaued at values between 11.4 and 11.8. Apparent C a P crystals covered the B io‐ G utta material after 30 days of immersion in PBS , whilst no such structures were observed on GP . Both materials under investigation had similar initial push‐out bond strength values ( P > 0.05). The adherence of B io‐ G utta increased from day 1 to 8 and was significantly higher than that of conventional GP at 8 and 30 days ( P < 0.05). Conclusions The experimental gutta‐percha material under investigation was alkaline and caused C a P precipitates on its surface. It improved its adherence to the root canal wall within 1 week.