Clinical performance of all-ceramic cantilever fixed dental prostheses: results of a 2-year randomized pilot study. Four-year clinical results of fixed dental prostheses with zirconia substructures (Cercon): end abutments vs. cantilever design. Clinical outcome of three-unit lithium-disilicate glass-ceramic fixed dental prostheses: up to 8 years results. Clinical evaluation of all-ceramic posterior three-unit FDPs made of In-Ceram Zirconia. Effect of prosthetic restoration on oral health-related quality of life in patients with shortened dental arches: a multicentre study. Prospective clinical study of zirconia-based posterior four-unit fixed dental prostheses: four-year follow-up. A multicenter longitudinal clinical trial of a new system for restorations. Long-term survival of endodontically treated, maxillary anterior teeth restored with either tapered or parallel-sided glass-fiber posts and full-ceramic crown coverage. Five-year clinical evaluation of all-ceramic posterior FDPs made of In-Ceram Zirconia. Three-year clinical prospective evaluation of zirconia-based posterior fixed dental prostheses (FDPs) Fracture resistance of compromised endodontically treated teeth restored with bonded post and cores: An in vitro study. Retrospective clinical study of single-retainer cantilever anterior and posterior glass-ceramic resin-bonded fixed dental prostheses at a mean follow-up of 6 years. Ten-year survival and complication rates of lithium-disilicate (Empress 2) tooth-supported crowns, implant-supported crowns, and fixed dental prostheses. Five-year prospective clinical study of posterior three-unit zirconia-based fixed dental prostheses Patient satisfaction following restoration of shortened mandibular dental arches in a randomized controlled trial. Quality of life of endodontically treated versus implant treated patients: a University-based qualitative research study. Three-year clinical comparison of survival of endodontically treated teeth restored with either full cast coverage or with direct composite restoration.
OBJECTIVE To evaluate the clinical performance of zirconia-based cantilever fixed dental prostheses ( FDPs ) . METHOD AND MATERIAL S Twenty-one cantilever FDPs with three or four units were design ed to replace one premolar or incisor ( no canines ) . The FDPs were divided into 11 zirconia cantilever FDPs ( test group ) and 10 metal-ceramic cantilever FDPs ( control group ) and r and omly assigned to patients . The results documented included failures , complications , plaque accumulation , and esthetic performance . Statistical analysis was performed using the Mann-Whitney U and chi-square tests . RESULTS During the 2-year observation period , a total of five clinical ly relevant complications in four patients occurred : three endodontic problems ( two in the test group and one in the control group ) and two veneer chippings ( both in the test group ) . Plaque accumulation on the abutment teeth was not significantly different among groups . The esthetic performance of all FDPs was acceptable . CONCLUSION Stability and esthetic performance were acceptable for all-ceramic cantilever FDPs fabricated with zirconia . A longer observation period and larger sample size are necessary to make valid predictions about the longevity of these restorations The purpose of this prospect i ve study was to evaluate the clinical outcome of three- to four-unit posterior all-ceramic fixed dental prostheses ( FDPs )  made of yttria-stabilized tetragonal zirconia-polycrystal ceramic frameworks ( CerconBase ; Degudent ) . Fifty-eight restorations were placed in 48 patients . Twenty-four FDPs had an end abutment design ( EAD ) replacing 3 premolars and 21 molars . Thirty-four FDPs had a cantilever design ( CD ) replacing 11 premolars and 23 molars . The frameworks had a minimum proximal connector dimension of 3 x 3 mm . The fixed dental prostheses were cemented with glass-ionomer cement after air-abrading the inner crown surfaces . Three FDPs were defined as drop-outs . The mean observation period was 48 + /- 7 months for the EAD ( 21 patients /24 FDPs ) and 50 + /- 14 months for the CD ( 25 patients /31 FDPs ) . The 4-yr survival rate , according to the Kaplan-Meier analyses , was 96 % for the EAD and 92 % for the CD . The technical complication rate was 13 % for the EAD and 12 % for the CD , and the biological complication rate was 21 % for the EAD and 15 % for the CD . For none of the analyses were significant differences found between both groups . After 4 yr the clinical outcome of three- to four-unit posterior FDPs with EAD and CD was promising OBJECTIVES The purpose of this prospect i ve study was to evaluate the clinical outcome of  crown-retained fixed dental prostheses ( FDPs ) made  from a lithium-disilicate glass-ceramic ( IPS e.max Press , Ivoclar-Vivadent ) . METHODS Thirty-six three-unit FDPs were placed in 28 patients . The FDPs replaced teeth in the anterior ( 16 % ) and posterior ( 84 % ) regions . All teeth were prepared following a st and ardized protocol . The size of the proximal connector of the FDPs was 12 mm2 ( anterior ) or 16 mm2 ( posterior ) . FDPs were cemented either with glass-ionomer cement ( n=19 ) or composite resin ( n=17 ) . The following parameters were evaluated at baseline , 6 months after cementation and then annually ( at abutment and contralateral teeth ) : probing pocket depth , plaque index , bleeding on probing , and tooth vitality . RESULTS Three FDPs were defined as drop-out . The mean observation period of the remaining 33 FDPs was 86 months ( range : 67 - 98 months ) : two FDPs in two patients had to be replaced ( 6 % ) because of fractures . The 8-year survival rate according to Kaplan-Meier was 93 % . In addition , chipping of the veneering material was found in two FDPs ( 6 % ) . Two abutments ( 3 % ) of two restorations had to be treated endodontically ; and two FDPs ( 6 % ) lost retention and had to be recemented . These complications did not affect the function of the involved restorations clinical ly . There were no significant differences between the periodontal parameters of the test and control teeth . SIGNIFICANCE Short-span crown-retained three-unit FDPs made from lithium-disilicate glass-ceramic can be used clinical ly irrespective of an adhesive or conventional cementation This prospect i ve study evaluated the clinical outcome of three-unit posterior fixed dental prostheses ( FDPs ) made of In-Ceram Zirconia . All 65 FDPs were inserted at the Department of Prosthodontics , School of Dentistry , Kiel , Germany , and cemented with glass-ionomer cement .  Follow-ups were performed annually . During a mean observation time of 54.4 months , two FDPs failed ( one technical and one biologic failure ) . Two FDPs debonded and the veneering ceramic fractured in four cases . Three abutment teeth needed endodontic treatment and two additional abutment teeth exhibited secondary caries . Results suggest that posterior three-unit all-ceramic FDPs made from In-Ceram Zirconia may be a viable prosthetic treatment option with an outcome comparable to metal-ceramic FDPs The aim of this multicentre prospect i ve study was to investigate the effect of prosthetic restoration for missing posterior teeth in patients with shortened dental arches ( SDAs ) . SDA patients with 2 - 12 missing occlusal units ( a pair of occluding premolars corresponds to one unit , and a pair of occluding molars corresponds to two units ) were consecutively recruited from seven university-based dental hospitals in Japan . Patients chose no replacement of missing teeth or prosthetic treatment with removable partial dentures ( RPDs ) or implant-supported fixed partial dentures ( IFPDs ) .  Oral health-related quality of life ( OHRQoL ) was measured using the oral health impact profile ( Japanese version - OHIP-J ) at baseline and follow-up/post-treatment evaluation . Of the 169 subjects who completed baseline evaluation , 125 subjects ( mean age ; 63.0 years ) received follow-up/post-treatment evaluation . No-treatment was chosen by 42 % ( 53/125 ) of the subjects , and 58 % ( 72/125 ) chose treatment with a RPD ( n = 53 ) or an IFPD ( n = 19 ) . In the no-treatment ( NT ) group , the mean OHIP summary score at baseline was similar to that at follow-up evaluation ( P = 0.69 ) . In the treatment ( TRT ) group , the mean OHIP summary score decreased significantly after the RPD treatment ( P = 0.002 ) , and it tended to decrease , though not statistically significant ( P = 0.18 ) , after the IFPD treatment . The restoration of one occlusal unit was associated with a 1.2-point decrease in OHIP summary score ( P = 0.034 ) . These results suggest that the replacement of missing posterior teeth with RPDs or IFPDs improved OHRQoL. Prosthetic restoration for SDAs may benefit OHRQoL in patients needing replacement of missing posterior teeth PURPOSE The aim of this prospect i ve study was to evaluate the clinical performance of zirconia-based posterior four-unit fixed dental prostheses ( FDPs )  after 4 years of clinical observation . MATERIAL S AND METHODS Between 2006 and 2010 , 10 patients ( 5 women , 5 men ; mean age : 52.8 years ) received 17 posterior four-unit FDPs .  Two calibrated examiners evaluated the FDPs independently 1 week ( baseline ) , 6 months , and 1 , 2 , 3 , and 4 years after placement using California Dental Association ( CDA ) criteria . Periodontal status was assessed on both the abutment and contralateral control teeth using Plaque Index , Gingival Index , probing attachment level , and Margin Index parameters . Statistical analysis was performed using descriptive statistics and the Wilcoxon signed-rank test . RESULTS Three restorations were lost because of fractures at their distal connectors after a mean clinical service of 25.3 months , and one abutment tooth was extracted because of vertical root fracture 23 months after cementation . Three FDPs presented chipping of a moderate size 1 week before framework fracture , and minor chipping was observed in 2 other FDPs 1 week and 36 months after cementation . After 4 years of clinical service , the cumulative survival rate of the posterior four-unit FDPs was 76.5 % . No caries lesions were detected on the abutment teeth . The remaining restorations were judged to be satisfactory according to the CDA criteria . Periodontal parameters did not show significant differences between test and control teeth , but Gingival Index scores demonstrated a slight increase in inflammation in the distal abutments after 4 years ( P = .016 ) . CONCLUSIONS The use of zirconia-based posterior four-unit FDPs should be restricted for patients with high esthetic dem and s , except in patients where at least 4 mm of height is available for connector thickness STATEMENT OF PROBLEM A new method for fabrication of  crowns and fixed partial dentures  ( Procera system ) that involves electric discharge machining and copy milling has been developed . The metal used is unalloyed titanium , which can be processed as a single coping or multiple units joined to a pontic by laser welding . PURPOSE The single-unit coping or the fixed partial denture ( FPD ) substructure is then veneered with a low-fusing porcelain . MATERIAL AND METHODS In this article the clinical application of this technique was evaluated by six major universities in the United States . A total of 114 patients participated in this study , which involved 126 restorations ( 55 maxillary and 71 m and ibular prostheses ) . There were 179 abutments , of which 73 were crowns  and 53 were three-unit FPDs .  Surface and color , anatomic form , and margin integrity were assessed 1 month after cementation and at 1 year with the California Dental Association ( CDA ) quality assessment evaluation system . RESULTS No statistically significant differences in CDA scores between the 1 month evaluations and the 1 year assessment s were found for surface and color ( p = 0.68 ) , anatomic form ( p > 0.99 ) , or margin integrity ( p = 0.57 ) . By use of the lowest ranking in the three categories as the overall quality of the restoration , only 3.3 % ( two crowns and two FPDs ) were not acceptable at the 1-month visit and 4.5 % ( two crowns and three FPDs ) were not acceptable at the 1-year evaluation . At-the 1-month visit 96.6 % ( 114 ) of the restorations were considered to be satisfactory , whereas 95.5 % ( 107 restorations ) were evaluated similarly at the 1-year evaluation . CONCLUSIONS The Procera system demonstrated , by use of the CDA criteria , its capability to produce quality prostheses that were rated satisfactory more than 95 % of the time after insertion and maintained this high rating at least for 1 year OBJECTIVES This retrospective study investigated the clinical effectiveness over up to 8 years of parallel-sided and of tapered glass-fiber posts , in combination with either hybrid composite or dual-cure composite resin core material , in endodontically treated , maxillary anterior teeth covered with full-ceramic crowns . METHODS The study population comprised 192 patients and 526 endodontically treated teeth , with various degrees of hard-tissue loss , restored by the post- and -core technique .  Four groups were defined based on post shape and core build-up material s , and within each group post- and -core restorations were assigned r and omly with respect to root morphology . Inclusion criteria were symptom-free endodontic therapy , root-canal treatment with a minimum apical seal of 4 mm , application of rubber dam , need for post- and -core complex because of coronal tooth loss , and tooth with at least one residual coronal wall . Survival rate of the post- and -core restorations was determined using Kaplan-Meier statistical analysis . RESULTS The restorations were examined clinical ly and radiologically ; mean observation period was 5.3 years . The overall survival rate of glass-fiber post- and -core restorations was 98.5 % . The survival rate for parallel-sided posts was 98.6 % and for tapered posts was 96.8 % . Survival rates for core build-up material s were 100 % for dual-cure composite and 96.8 % for hybrid light-cure composite . CONCLUSIONS For both glass-fiber post design s and for both core build-up material s , clinical performance was satisfactory . Survival was higher for teeth retaining four and three coronal walls The aim of this prospect i ve study was to evaluate the clinical outcomes of three and four-unit  posterior fixed dental prostheses ( FDPs ) made of In-Ceram Zirconia . Twenty FDPs were inserted in 15 patients . Over a mean observation period of 74.6 months , the survival rate was 85 % . Sixty-five percent of cases did not allow for connector dimensions that met the manufacturer 's recommendations without the use of surgical procedures ( eg , crown lengthening ) . Posterior all-ceramic FDPs made of In-Ceram Zirconia appear to be a viable prosthetic treatment option to replace a missing tooth This clinical study evaluated posterior three-unit fixed dental prostheses ( FDPs ) made of zirconia substructures veneered with pressable glass – ceramic .  Nineteen patients received 21 FDPs replacing either the second premolar , first molar , or second molar . The FDPs were cemented with glass ionomer . Recall examinations were performed every 12 months . The mean service time of the FDP was 40 months . At 30 months , one maxillary FDP exhibited zirconia framework fracture at a thinned occlusal area of the abutment . Loss of retention led to the removal of one FDP after 38 months . The Kaplan – Meier survival probability was 90.5 % after 40 months for all types of failures and 95.2 % concerning framework fractures . The overpressing technique appears to be reliable in terms of the veneering material . However , one framework fracture was observed in this study STATEMENT OF PROBLEM It is unclear which post and core system performs best when bonded to severely compromised endodontically treated teeth . PURPOSE The purpose of this study was to investigate the fracture resistance and mode of failure of severely compromised teeth restored with 3 different adhesively bonded post and core systems . MATERIAL AND METHODS Thirty extracted endodontically treated maxillary anterior teeth were r and omly divided into 3 groups , CPC , gold cast post and core ; TPC , titanium prefabricated post/composite resin core ; and FPC , quartz fiber reinforced post/composite resin core . All posts were adhesively cemented . All cores resembled a central incisor preparation with no remaining tooth structure above the finish line . Cast gold crowns were fabricated and cemented adhesively . The specimens were aged with thermocycling and cyclic loading . Two specimens per group were r and omly selected for micro-computed tomographic imaging before and after aging . Failure was induced with a universal testing machine . The mode of failure was characterized by the interface separation . Data were analyzed with 1-way ANOVA ( α=.05 ) followed by post hoc tests ( Bonferroni ) . RESULTS A statistically significant difference was found among the 3 groups ( P=.002  ) . CPC was significantly different than TPC ( P=.008 ) or FPC ( P=.003 ) . The primary mode of failure  for CPC and TPC  was root fracture , and for FPC post debonding . CONCLUSIONS Severely compromised endodontically treated teeth restored with bonded gold cast post and cores showed significantly higher fracture resistance PURPOSE To retrospectively evaluate the 6-year survival rates and technical/ biologic complication rates of single-retainer glass-ceramic resin-bonded fixed dental prostheses ( RBFDPs ) .  MATERIAL S AND METHODS Forty patients with 49 anterior/posterior glass-ceramic RBFDPs were included . The RBFDPs  replaced 11 maxillary/m and ibular central incisors , 18 lateral incisors , 18 premolars , and 2 molars . Patients willing to participate were clinical ly and radiologically examined . The technical outcome was assessed with modified United States Public Health Service criteria . Fracture and /or chipping of the restoration , occlusal wear , marginal adaptation , marginal discoloration , shape , surface texture , and esthetic integration were recorded . Tooth vitality and postoperative sensitivity were tested . The following biologic parameters were assessed at test and control teeth : probing pocket depth , gingival recession , attachment loss , bleeding on probing , furcation involvement , and periodontal mobility . Statistical analysis was performed with exact 95 % confidence intervals to relative frequencies and the paired t test . RESULTS Twenty-eight patients with 35 RBFDPs participated . The mean follow-up of the RBFDPs was 6 years . Twelve patients with 14 RBFDPs were not willing to participate or not available . No catastrophic failures occurred . The 6-year survival rate of the examined RBFDPs was 100 % . No debonding was recorded . Chipping of the ceramic was found in 5.7 % of the RBFDPs . Biologic outcomes were similar at test and control teeth . CONCLUSION Glass-ceramic RBFDPs exhibited promising clinical outcomes in both anterior and posterior regions OBJECTIVES To prospect ively evaluate the clinical long-term outcome of  tooth-supported crowns ( SCs ) , implant-supported crowns ( ISCs ) , and fixed dental prostheses ( FDPs )  made of a lithium-disilicate glass-ceramic framework material ( IPS Empress 2 ) . MATERIAL S AND METHODS Between 1997 and 1999 , a total of 184 restorations ( 106 SCs , 32 ISCs , 33 FDPs , and 13 diverse restorations ) were placed in 73 patients .  Kaplan-Meier estimation was applied for survival and chipping-free rates . Inter-group comparison of both rates was realized by a log rank test and a 2 × 2 contingency table . Also , SCs and FDPs were compared regarding adhesive vs. conventional cementation , and anterior vs. posterior positioning , for impact on survival . RESULTS Due to 14 dropouts ( 34 restorations ) and reasonable exclusion of 19 other restorations , the final data set included : i ) 87 SCs [ 37 patients , mean observation time 11.4 (±3.8)years ] ; ii ) 17 ISCs [ 12 patients , mean observation time 13.3 (±2.3)years ; and iii ) 27 FDPs [ 19 patients , mean observation time 8.9 (±5.4)years ] . The 10-year survival rate/chipping-free rate for SCs were 86.1%/83.4 % , for ISCs 93.8%/94.1 % , and for FDPs were 51.9%/90.8 % . Both ISCs and SCs had a significantly higher survival than FDPs ( ISCs vs. FDPs : both tests p=0.001 ; SCs vs. FDPs : p=0.001 and p=0.005 ) . Differences in the chipping-free rates did not reach significance . Also , neither the cementation mode nor positioning of the restoration had an impact on survival . CONCLUSIONS SCs had a slightly lower outcome than can generally be expected from single crowns . In contrast , ICSs had a favorable outcome and the FDPs predominantly failed . CLINICAL SIGNIFICANCE The practitioner 's choice of dental material s is based ( at best ) on long-term experience . The present 10-year results are based on comprehensive data analyses and show the high potential of lithium-disilicate as a reliable material , especially for single-unit restoration This prospect i ve clinical trial aim ed at evaluating the clinical performance of three-unit posterior zirconia fixed dental prostheses ( FDPs ) after 5 years of clinical function . Thirty-seven patients received 48 three-unit zirconia-based FDPs .  The restorations replaced either a premolar or a molar . Specific inclusion criteria were needed . Tooth preparation was st and ardized . Computer-aided design /computer-assisted manufacturing frameworks with a 9-mm2 cross section of the connector and a 0.6-mm minimum thickness of the retainer were made . The restorations were luted with resin cement . The patients were recalled after 1 , 6 , 12 , 24 , 36 , 48 , and 60 months . The survival and success of the ceramics and zirconia were evaluated . The technical and aesthetic outcomes were examined using the United States Public Health Service criteria . The biologic outcomes were analyzed at abutment and contralateral teeth . Descriptive statistics were performed . All FDPs completed the study , result ing in 100 % cumulative survival rate and 91.9 % and 95.4 % cumulative success rates for patients wearing one and two FDPs , respectively . No losses of retention were recorded . Forty-two restorations were rated alpha in all measured parameters . A minor chipping of the ceramics was detected in three restorations . No significant differences between the periodontal parameters of the test and control teeth were observed . Five-year clinical results proved that three-unit posterior zirconia-based FDPs were successful in the medium term for both function and aesthetic .  Zirconia can be considered a promising substitute of metal frameworks for the fabrication of short-span posterior prostheses PURPOSE Removable partial dentures ( RPD ) used to restore the severely shortened m and ible may adversely affect the remaining natural teeth and are associated with a low prevalence of use . This pilot study investigated patient satisfaction following restoration of m and ibular shortened dental arches . MATERIAL S AND METHODS Sixty subjects with m and ibular shortened dental arches entered a r and omized controlled trial comparing two types of m and ibular prostheses : bilateral free-end saddle RPDs and distal cantilever resin-bonded fixed partial dentures ( FPD ) . Patient satisfaction was assessed using self-administered question naires before ( baseline ) , 3 months after , and 1 year after provision of new prostheses . RESULTS Improvements in levels of general satisfaction with teeth , appearance of teeth , and perceived masticatory ability were significant for the FPD group . Significant improvements in perceived masticatory ability were noted for both groups . There were also significant improvements in perceived levels of comfort of m and ibular prostheses in both groups . Changes in summary satisfaction scores indicated improved satisfaction for both treatment groups but suggested a larger clinical effect for the FPD group . Significant differences between treatment groups were not established . CONCLUSION Patient-based outcomes reported suggested that resin-bonded cantilever FPDs are an effective means of restoring the shortened m and ibular dental arch in terms of patient comfort and acceptance INTRODUCTION Up-to- date studies comparing endodontic treatment versus implant-supported prosthesis have shown similar clinical outcome and survival rates . However , no data are available comparing both treatment modalities based on the patient 's perception of quality of life . This study was design ed to qualitatively describe and compare the quality of life of patients with restored , single endodontically treated teeth versus patients with single implant-supported fixed prostheses . METHODS Forty-eight patients agreed to participate in the study ( n = 24 from each treatment modality ) . Of those , 37 actually participated in the study : 17 were endodontically treated and 20 had an implant-supported prosthesis . Patients in each of the two groups were r and omly selected from the Graduate Endodontics and Graduate Periodontics Departments , respectively . Six focus group discussion s ( n = 3 per treatment group ) were held and audio-recorded for subsequent thematic analysis . Data were analyzed to identify common themes within each category and compared to assess any differences in quality of life between the two treatments . Additionally , a quality of life survey , the shortened version of the Oral Health Impact Profile ( OHIP-14 ) , was given before the discussion group and the responses analyzed . RESULTS The results obtained from this study show similar overall OHIP scores and show a high rate of satisfaction with both treatment modalities . Content analysis of the discussion groups revealed several themes and subthemes . The major themes were importance of overall health , financial implication s of the treatments , perception of the treatments and its outcomes , time since treatment , and follow-up dental visits . CONCLUSIONS The results help identify patients ' perception and concerns with each treatment modality and assist the clinician and patient in the selection of an optimal treatment for their given situation . In addition to the prognosis and outcomes , clinicians should consider patients ' perceptions and preferences as well as the influence each therapy may have on their quality of life , both short- and long-term . Overall , all the participants in this study were pleased with the treatment received and expressed a clear message to save their natural dentition whenever possible STATEMENT OF PROBLEM Little information exists regarding the outcome of crown build-ups on endodontically treated teeth restored with metal-ceramic crowns or with only a direct-placed composite . PURPOSE The aim of this study was to evaluate the clinical success rate of endodontically treated premolars restored with fiber posts and direct composite restorations and compare that treatment with a similar treatment of full-coverage with metal-ceramic crowns . MATERIAL AND METHODS Subjects included in this study had one maxillary or m and ibular premolar for which endodontic treatment and crown build up was indicated and met specific inclusion /exclusion criteria . Only premolars with Class II carious lesions and preserved cusp structure were included . Subjects were r and omly assigned to 1 of the following 2 experimental groups : ( 1 ) teeth endodontically treated and restored with adhesive techniques and composite or ( 2 ) teeth endodontically treated , restored with adhesive techniques and composite , and then restored with full-coverage metal-ceramic crowns .  Sixty teeth were included in the first group and 57 in the second . All restorations were performed by one operator . Causes of failure were categorized as root fracture , post fracture , post decementation , clinical and /or radiographic evidence of marginal gap between tooth and restoration , and clinical and /or radiographic evidence of secondary caries contiguous with restoration margins . Subjects were examined for the listed clinical and radiographic causes of failure by 2 calibrated examiners at intervals of 1 , 2 , and 3 years . Exact 95 % confidence intervals for the difference between the 2 experimental groups were calculated . RESULTS At the 1-year recall , no failures were reported . The only failure modes observed at 2 and 3 years were decementations of posts and clinical and /or radiographic evidence of marginal gap between tooth and restoration . There was no difference in the failure frequencies of the 2 groups ( 95 % confidence interval , -17.5 to 12.6 ) . There was no difference between the number of failures caused by post decementations and the presence of marginal gaps observed in the 2 groups ( 95 % confidence intervals , -9.7 to 16.2 and -17.8 to 9.27 ) . CONCLUSION Within the limitations of this study , the results upheld the research hypothesis that the clinical success rates of endodontically treated premolars restored with fiber posts and direct composite restorations after 3 years of service were equivalent to a similar treatment of full coverage with metal-ceramic crowns
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 ) .