Long-term Survival of Root-canal–treated Teeth: A Retrospective Study Over 10 Years

Abstract

In this retrospective study the survival rate of 190 root-canal-treated teeth of 144 patients after 10-yr minimum was evaluated. Students during their training in 1987 and 1988 had performed the treatments. Age, gender, jaw, or quantity of root canals had no influence to the success of a root-canal treatment. Teeth with an apical lesion before the endodontic treatment showed a significantly shorter likelihood of survival. The best results could be found in root-canal fillings ending 0 to 1 mm and 1 to 2 mm before the apex. Comparing types of restoration, prosthetic-treated teeth with retention post and crown seem to be favorable. The study showed that root-canal treatment even conducted by students has a survival rate of 85.1% (Kaplan-Meier) after 10 yr and is a long-lasting, conservative therapy.

Wnt5a Promotes Inflammatory Responses via Nuclear Factor κB (NF-κB) and Mitogen-activated Protein Kinase (MAPK) Pathways in Human Dental Pulp Cells

“…caries) is not eliminated, regardless of how minute, the continued infection can promote pulpitis and result in total pulp necrosis that can lead to total loss of the entire dental pulp. Despite the reported clinical success of root canal treatments, endodontically treated teeth often become devitalized and brittle and, thus, susceptible to postoperative fracture and other complications, including reinfection because of coronal leakage or microleakage (31,32).…”

Tooth regeneration: a revolution in stomatology and evolution in regenerative medicine

“…A typical endodontic treatment or root canal therapy for irreversible pulpitis is pulpectomy, involving pulp extirpation followed by root canal enlargement and obturation of root canal with gutta percha, a bioinert thermoplastic material. Despite reported clinical success, endodontically treated teeth become de-vitalized and brittle, susceptible to post-operative fracture and other complications including re-infections due to coronal leakage or microleakage [41]. A substantial amount of tooth structures including enamel and dentin is removed during endodontic treatment, potentially leading to post-treatment tooth fracture and trauma [41][42].…”

“…Despite reported clinical success, endodontically treated teeth become de-vitalized and brittle, susceptible to post-operative fracture and other complications including re-infections due to coronal leakage or microleakage [41]. A substantial amount of tooth structures including enamel and dentin is removed during endodontic treatment, potentially leading to post-treatment tooth fracture and trauma [41][42]. Endodontically treated teeth have lost pulpal sensation, and are deprived of the ability to detect secondary infections [42][43].…”

Comparing the Retention of Cast Posts Cemented with Three Different Kinds of Cement

“…Unti l now, work has drawn att enti on to the necessity of a responding post and crown that would enable opti mal results 15,16 . Retenti on of the post in the tooth root is criti cal for the success and durability of the fi nal restorati on.…”