Survival of two post systems

• Verfasst von: Schmitter, Marc [VerfasserIn]
• Verfasst von: Hamadi, Khaled [VerfasserIn]
• Verfasst von: Rammelsberg, Peter [VerfasserIn]
• Titel: Survival of two post systems
• Titelzusatz: five-year results of a randomized clinical trial
• Verf.angabe: Marc Schmitter, Khaled Hamadi, Peter Rammelsberg
• E-Jahr: 2011
• Jahr: [2011]
• Umfang: 8 S.
• Fussnoten: Gesehen am 12.10.2022
• Titel Quelle: Enthalten in: Quintessence international
• Ort Quelle: Carol Stream, Ill. [u.a.] : Quintessenz Publ., 1990
• Jahr Quelle: 2011
• Band/Heft Quelle: 42(2011), 10, Seite 843-850
• ISSN Quelle: 1936-7163
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Acid Etching, Dental
• Sach-SW: Cementation
• Sach-SW: Dental Materials
• Sach-SW: Dental Prosthesis Design
• Sach-SW: Dental Prosthesis Repair
• Sach-SW: Dental Restoration Failure
• Sach-SW: Dentin-Bonding Agents
• Sach-SW: Female
• Sach-SW: Follow-Up Studies
• Sach-SW: Glass
• Sach-SW: Humans
• Sach-SW: Male
• Sach-SW: Middle Aged
• Sach-SW: Phosphoric Acids
• Sach-SW: Post and Core Technique
• Sach-SW: Prospective Studies
• Sach-SW: Resin Cements
• Sach-SW: Risk Factors
• Sach-SW: Survival Analysis
• Sach-SW: Titanium
• Sach-SW: Tooth Extraction
• Sach-SW: Tooth Fractures
• Sach-SW: Tooth Root
• Sach-SW: Tooth, Nonvital
• Sach-SW: Treatment Outcome
• Sach-SW: Zinc Phosphate Cement
• K10plus-PPN: 1818808897

Abstract

OBJECTIVE: To assess the survival rate of two different post systems after 5 years of service with a prospective randomized controlled trial. - METHOD AND MATERIALS: One hundred patients in need of a post were studied. Half of the patients received long glass fiber-reinforced posts, while the other half received long metal screw posts. The posts were assigned randomly. After at least 5 years (mean, 61.37 months), follow-ups were established. When a complication occurred prior to this recall, the type and time of the complication was documented. Statistical analysis was performed using the log-rank test and Kaplan-Meier analysis. Additionally, a Cox regression was performed to analyze risk factors. - RESULTS: The survival rate of fiber-reinforced posts was 71.8%. In the metal screw post group, the survival rate was significantly lower, 50.0% (log-rank test, P = .026). Metal posts resulted more often in more unfavorable complications (eg, root fractures); consequently, more teeth (n = 17) had to be extracted. The Cox regression identified the following risk factors: position of the tooth (anterior vs posterior teeth), degree of coronal tooth destruction, and the post system (fiber-reinforced post vs metal screw post). Fiber-reinforced restorations loosened in several patients; in some of these cases (n = 6), patients did not notice this, leading to the extraction of teeth. - CONCLUSION: Long metal screw posts should be used with great care in endodontically treated teeth. Besides the selection of the post system, other factors influence the survival of the restoration.