Failures of fiber posts were mainly due to post loss of retention , while metal post failures were mostly related to root fracture , post fracture and crown and /or post loss of retention .
In conclusion , metal and fiber posts present similar clinical behavior at short to medium term follow-up .
Remaining dental structure and ferrule increase the survival of restored pulpless teeth .
The aim of this systematic review was to compare the clinical performance and failure modes of teeth restored with intra-radicular retainers .
Influence of clinical baseline findings on the survival of 2 post systems: a randomized clinical trial.
PURPOSE The aim of this prospect i ve r and omized controlled trial was to evaluate the influence of clinical baseline characteristics on the survival of 2 post systems . MATERIAL S AND METHODS One hundred patients needing a post were included . Half the patients received a glass fiber-reinforced post ( FRP ) , and the other half received metal screw posts ( MSP ) . The posts were assigned r and omly . In addition to demographic data , the following parameters were recorded : type of tooth ( incisor/canine versus molar/premolar ) , length of the post in relation to root length ( percentage ) , extent of coronal tooth destruction ( percentage ) , ferrule height ( in millimeters ) , type of restoration ( fixed or removable partial denture ) , and presence of antagonistic contacts ( yes/no ) . After at least 1 year ( mean : 13.84 months ) , the patients were recalled . Statistical analysis was performed using the log-rank test and Cox regression analysis . RESULTS The survival rate of FRPs was 93.5 % . In the MSP group , the survival rate was significantly lower ( 75.6 % ; log-rank test , P = .049 ) . Additionally , the metal posts were associated with more unfavorable complications , for example , root fracture . The type of the tooth and the degree of coronal tooth destruction influenced the survival of MSPs , whereas no influence of these variables could be seen for FRPs . CONCLUSION FRPs are superior to MSPs with respect to short-term clinical performance . Especially for MSPs , clinical survival depends on several variables
Failures of fiber posts were mainly due to post loss of retention , while metal post failures were mostly related to root fracture , post fracture and crown and /or post loss of retention .
In conclusion , metal and fiber posts present similar clinical behavior at short to medium term follow-up .
Remaining dental structure and ferrule increase the survival of restored pulpless teeth .
The aim of this systematic review was to compare the clinical performance and failure modes of teeth restored with intra-radicular retainers .