Conclusions The most frequently reported failures in the available studies were as follows : fiber post debonding , loss of retention of single crowns , and marginal gaps .
Less frequently , chippings and fractures were recorded in SCs .
Objective The present systematic review aim ed at assessing data from the literature on endodontic and prosthetic complications in endodontically treated teeth restored with fiber posts and single crowns ( SCs ) or fixed dental prostheses ( FDPs ) .
Rigid versus flexible dentine-like endodontic posts--clinical testing of a biomechanical concept: seven-year results of a randomized controlled clinical pilot trial on endodontically treated abutment teeth with severe hard tissue loss.
INTRODUCTION This is the first clinical long-term pilot study that tested the biomimetic concept of using more flexible , dentine-like ( low Young modulus ) glass fiber-reinforced epoxy resin posts ( GFREPs ) compared with rather rigid , stiff ( higher Young modulus ) titanium posts ( TPs ) in order to improve the survival rate of severely damaged endodontically treated teeth . METHODS Ninety-one subjects in need of postendodontic restorations in teeth with 2 or less remaining cavity walls were r and omly assigned to receive either a tapered TP ( n = 46 ) or a tapered GFREP ( n = 45 ) . The posts were adhesively luted using self-adhesive resin cement . The composite core build-ups were prepared ensuring a circumferential 2-mm ferrule . The primary endpoint was a loss of restoration for any reason . To study group differences , the log-rank test was calculated ( P < .05 ) . Hazard plots were constructed . RESULTS After 84 months of observation ( mean = 71.2 months ) , 7 restorations failed ( ie , 4 GFREPs and 3 TPs ) . The failure modes were as follows : GFREP : root fracture ( n = 3 ) , core fracture ( n = 1 ) and TP : endodontic failure ( n = 3 ) . No statistical difference was found between the survival rates ( GFREPs = 90.2 % , TPs = 93.5 % , P = .642 ) . The probability of no failure was comparable for both post material s ( risk ratio ; 95 % confidence interval , 0.965 - 0.851/1.095 ) . CONCLUSIONS When using self-adhesive luted prefabricated posts in severely destroyed abutment teeth with 2 or less cavity walls and a 2-mm ferrule , postendodontic restorations achieved high long-term survival rates irrespective of the post material used ( ie , glass fiber vs titanium )
Conclusions The most frequently reported failures in the available studies were as follows : fiber post debonding , loss of retention of single crowns , and marginal gaps .
Less frequently , chippings and fractures were recorded in SCs .
Objective The present systematic review aim ed at assessing data from the literature on endodontic and prosthetic complications in endodontically treated teeth restored with fiber posts and single crowns ( SCs ) or fixed dental prostheses ( FDPs ) .