Periapical biomechanics and the role of cyclic biting force in apical retrograde fluid movement

Abstract

Biting forces would cause bending of the periapical bone and cyclic biting forces would contribute to retrograde fluid movement into the root canal space and extraradicular region.

Enterococcus faecalis‐mediated biomineralized biofilm formation on root canal dentine in vitro

“…Moreover, our earlier experiments have demonstrated a biting force‐induced retrograde fluid movement into the apical portion of the root canal. This cyclic influx of tissue fluid into the apical portion of the root canal may promote persistence of bacteria as biofilm in this region 32. The interaction of E. faecalis with root canal dentine observed in this study may be an important issue to ponder in endodontics, especially due to increasing application of calcium hydroxide as intervisit medicament during RCT.…”

Possibilities of Gutta-Percha–centered Infection in Endodontically Treated Teeth: An In Vitro Study

“…Nevertheless, coronal leakage through postendodontic restorations and root filling is thought to be a common cause of root canal recontamination (20,21). Experiments also have highlighted the possibility of apical retrograde fluid movement as a result of chewing forces (22). Although persistent apical periodontitis after endodontic treatment has been a topic of interest in recent times, very few studies have examined the biofilm-forming potential of bacteria on GP points under different clinically relevant conditions.…”

Apically extruded debris and irrigant with two Ni‐Ti systems and hand files when removing root fillings: a laboratory study

“…). It has been suggested that floral foam might be used to simulate periapical tissue (Kishen ). Although floral foam can simulate some resistance and would be more realistic than zero back pressure, it has a different density than periapical tissue.…”