Effects of root canal preparation, various filling techniques and retreatment after filling on vertical root fracture and crack formation

Abstract

The filling techniques (except SC) caused more cracks than preparation only. The SC caused fewer cracks compared to the other filling techniques. The retreatment following the different filling techniques (except CL) caused more cracks than the original fillings.

Critical appraisal of studies on dentinal radicular microcracks in endodontics: methodological issues, contemporary concepts, and future perspectives

“…Most experimental studies on crack formation used a stereomicroscope to evaluate non‐sectioned apical root surfaces or different levels of a sectioned root in order to evaluate preparation , obturation , and retreatment protocols. These studies were conducted using original magnification ranging from ×8 up to ×100 (Table ) under high‐level illumination.…”

“…Currently, only 4 studies using sectioning method evaluated the incidence of cracks after retreatment procedures in mandibular incisors and premolars (Table ). In 3 studies , various retreatment techniques, followed by different preparation and filling procedures, caused a high incidence of crack initiation and had a significant effect on crack propagation.…”

Moisture content of root canal dentine affects detection of microcracks using micro‐computed tomography

“…, Çapar et al . ) induced dentinal defects. However, the literature on microcrack formation lacks consensus (Versiani et al .…”

Porosity distribution in root canals filled with gutta percha and calcium silicate cement

“…The SC biomaterial-placement technique requires insertion of a properly matched cone in conjunction with a root canal sealer to completely fill the entire canal. It may thus offer a sorelyneeded robust treatment alternative that may also potentially reduce the propensity of treatment to damage the dentinal walls [8]. Using both of the above mentioned root canal filling approaches (LC or SC), a sealer is used to completely fill the gaps between the cones and the dental tissues.…”