Comparison of dentinal crack incidence and of post removal time resulting from post removal by ultrasonic or mechanical force

Ultrasonics in Endodontics: A Review of the Literature

“…This is needed to flare the walls of a troughing groove in an axial direction. difficulties of removing posts without weakening, perforating, or fracturing the remaining root structure (85)(86)(87)(88). Many techniques and instruments have been described to aid in the removal of posts (52, 85, 88 -94).…”

Detection of Dentinal Cracks after Root-end Resection: An Ex Vivo Study Comparing Microscopy and Endoscopy with Scanning Electron Microscopy

“…The majority (70.3%) of detected cracks were incomplete canal cracks. However, because crack identification was only performed at the resection plane (ie, 3 mm from the apex), it can be speculated that incomplete canal cracks might be complete canal cracks and vice versa in a different plane (16). It has been shown that instrumentation for orthograde root canal preparation can lead to the development of cracks, in particular in the apical area (17).…”

“…Reasons for crack development in the present material included the extraction of the tooth and ex vivo treatment (crown resection, endodontic preparation and obturation, and root-end resection) (16,20,22,23). None of the teeth in this study was endodontically treated before extraction.…”

Phylogenetic analysis, expression patterns, and transcriptional regulation of human CTEN gene

“…The human cten protein sequence AAN32666.1 was selected from Genbank and queried with protein-protein BLAST via the NCBI web server (Altshul et al, 1997); 22 protein orthologs possessing sufficient identity across the query sequence and with blast scores > 200 were identified; their corresponding nucleotide coding regions (CDS) were used as the basis of the multiple sequence alignment (MSA). The program MAFFT (Katoh and Toh, 2008) generated the MSA via the EBI web server using minor changes to the default parameterization.…”