An in vitro comparison of microleakage of restorative materials in the pulp chambers of human molar teeth

Bacterial Microleakage of Barrier Materials in Obturated Root Canals

“…Previous studies in which different methods were used to evaluate microleakage have reported a variety of results in assessing the ability of glass ionomers to prevent leakage (4, 5, 7). Carman and Wallace (4) found that glass ionomer cement placed over the gutta-percha reduced dye leakage more than intermediate restorative material (IRM) and light-cured and self-cured composite. Beckham et al (5) have determined greatest dye penetration with glass ionomer cement when compared to Barrier Dentin Sealant and TERM groups.…”

“…A variety of alternative methods including an additional material placed into the canal orifices after removal of a portion of gutta-percha and sealer (2) or sealing the pulp chamber floor with a restorative material have been suggested to prevent the entrance of oral fluids and microorganisms into the root-canal system (4). Several restorative materials have been tested in an attempt to provide an intracoronal barrier to prevent coronal microleakage (5,6).…”

An in vitro evaluation of four materials as barriers to coronal microleakage in root-filled teeth

“…During root‐canal treatment, it is important to create a seal in the access cavity in order to prevent the entrance of saliva and microorganisms into the root‐canal system. However, several studies have reported that coronal microleakage can occur around temporary restorations (Saunders & Saunders 1990, Beckham et al . 1993, Carman & Wallace 1994, Beach et al .…”

Intraorifice sealing ability of different materials in endodontically treated teeth: An in vitro study

“…This observation is in accordance to studies conducted by Diaz-Arnold and Wilcox, Carman and Wallace, Roghanizad and Jones, and Galvan et al ., where composite showed substantial leakage. [22232425]…”