Fracture resistance of roots prosthetically restored with intra-radicular posts of different lengths. Fracture resistance of compromised endodontically treated teeth restored with bonded post and cores: An in vitro study. Ferric sulfate versus dilute formocresol in pulpotomized primary molars: long-term follow up. Three-year clinical comparison of survival of endodontically treated teeth restored with either full cast coverage or with direct composite restoration. Effect of no ferrule on failure of teeth restored with bonded posts and cores. Clinical Evaluation of Success of Primary Teeth Pulpotomy Using Mineral Trioxide Aggregate(®), Laser and Biodentine(TM)- an In Vivo Study. Root canal treatment in a population-based adult sample: status of teeth after endodontic treatment. Effect of tooth type and ferrule on the survival of pulpless teeth restored with fiber posts: a 3-year clinical study. Clinical evaluation of a polyacid-modified resin composite (compomer) in Class II restorations of primary teeth: a two-year follow-up study. Casein Phosphopeptide-Amorphous Calcium Phosphate and Shear Bond Strength of Adhesives to Primary Teeth Enamel Evaluation of Novel Glass Fiber-reinforced Composite Technique for Primary Anterior Teeth with Deep Carious Lesions: A 12-month Clinical Study Pulpotomy in caries-exposed immature permanent molars using calcium-enriched mixture cement or mineral trioxide aggregate: a randomized clinical trial. Treatment outcomes of pulpotomy in primary molars using two endodontic biomaterials. A 2-year randomised clinical trial. A three-year clinical evaluation of two-bottle versus one-bottle dentin adhesives.
The purpose of this study was to assess the fracture resistance of roots that were prosthetically restored with intra-radicular posts  of different lengths . Forty-five bovine incisors were sectioned 17 mm from their apices , endodontically treated and r and omly divided into three experimental groups : GI , fibreglass posts luted at a depth of 12 mm ; GII , 8 mm and GIII , 4 mm . All posts were luted with dual resin cement . Resin composite cores were prepared with st and ardized measurements , and all teeth were restored with metal crowns . The sample s were su bmi tted to the fracture resistance test in a universal testing machine , at an angle of 135 degrees and speed of 0.5 mm min(-1 ) , until fracture occurred . The data , in MPa , were su bmi tted to the analysis of variance ( anova ) followed by Tukey 's test ( alpha = 0.01 ) . No statistically significant difference ( P > 0.01 ) was found between GI ( 129.72 + /- 12.14 ) and GII ( 154.3 + /- 12.08 ) , which presented the highest fracture resistance values . Group GIII ( 100.5 + /- 8.07 ) showed lower fracture resistance ( P < 0.01 ) when compared with GI and GII . Within the limitations of this study , it was concluded that the post lengths influenced the fracture resistance of prosthetically restored roots . These results suggest that it is not necessary to perform excessive intra-radicular post-space preparation to improve the fracture resistance of roots 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 The aim of this study was to compare the effect of ferric sulfate ( FS ) to that of dilute formocresol ( DFC ) as pulp dressing agents in pulpotomized primary molars . Ninety-six primary molars in 72 children were treated by a conventional pulpotomy technique . Fifty-eight teeth were treated by a FS solution for 15 sec , rinsed , and covered by zinc oxide-eugenol paste ( ZOE ) . In another 38 teeth , a cotton pellet moistened with 20 % DFC was placed for 5 min , removed , and the pulp stumps were covered by ZOE paste . The teeth of both groups were sealed by a second layer of intermediate restorative material ( IRM ) and restored with a stainless steel crown . This is a report of the clinical and radiographic examination of 55 teeth dressed with FS and 37 teeth fixed with DFC , that have been treated 6 to 34 months previously ( mean 20.5 months ) . Four teeth were excluded from the study due to failure of the patient to present for recall . Success rates of 92.7 % for the FS , and of 83.8 % for the DFC were not significantly different . Four teeth ( 7.2 % ) of the FS group and two ( 5.4 % ) of the DFC group presented internal resorption . Inter-radicular radiolucencies were observed in two teeth of the FS group and three teeth of the DFC group . The latter also presented periapical lesions . Success rates of both groups were similar to those of previous studies utilizing the traditional Buckley 's formocresol 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 This study investigated how the absence of a ferrule affected the failure load of teeth that had been restored with bonded fiber posts and resin cores . There was a significant difference ( p < 0.001 ) between the ferrule and nonferrule groups ' load to failure . For the ferrule group , root fracture was the predominant mode of failure ; in the nonferrule group , debonding failures were predominant INTRODUCTION Pulpotomy technique basically consists of removing the coronal pulp and fixing the radicular pulp with a medicament . It is the most widely accepted clinical procedure for treating primary teeth with coronal pulp inflammation caused by caries with no involvement of the radicular pulp . AIM To evaluate the success and efficacy of Mineral Trioxide Aggregate ( MTA ) , Lasers and Biodentine as pulpotomy agents both clinical ly and radiographically . MATERIAL S AND METHODS In the present study , 60 primary molars in children whose pulpal status warranted pulpotomy were selected and r and omly assigned into three groups that included MTA , Laser and Biodentine allocating 20 teeth to each group . The pulpotomy procedure was then performed on all selected teeth followed by restoration with stainless steel crowns . Later the patients were recalled for 3 months and 6 months for clinical and radiographic evaluation . RESULTS Statistical analysis was done using Fisher exact test to determine pair wise comparison of three agents with respect to clinical and radiographic criteria . Kruskal-Wallis ANOVA , Mc Nemars test was applied to evaluate the efficacy of each agent between 3 months and 6 months . The results showed that maximum success rate was found in MTA group . However , the comparison between three groups was statistically not significant ( p<0.05 ) . CONCLUSION Pulpotomies performed with either MTA , Laser or Biodentine are equally efficient with similar clinical /radiographic success and hence can be considered as alternatives to Formocresol The purpose of this study was to quantify treatment outcomes of  endodontically treated teeth , in a representative , population -based adult sample . The " Florida Dental Care Study " was a prospect i ve , longitudinal , cohort study of 873 subjects who had at least one tooth at baseline and who were 45 yr or older . An in-person interview and clinical examination were conducted at baseline , 24 months , and 48 months after baseline , with 6-monthly telephone interviews between those times . Dental record information was abstract ed afterward . Seventy-five teeth had conventional root-canal therapy ( RCT ) performed and met the inclusion criteria of 1-yr of follow-up or extraction . The mean duration of follow-up after RCT was 24.8 months . The mean ( SD ) attachment loss ( AL ) on teeth receiving RCT was only 3.3 ( 1.4 ) mm . Permanent restorations were placed in 79 % of teeth a mean of 4.4 months after the RCT . However , 12 % of teeth did not have any restorative treatment after RCT . After RCT had been completed , 81 % of teeth were retained and 19 % were ultimately extracted . Taken as a whole , this community-based study of a representative sample of adults suggests a higher failure rate than reported from studies in highly controlled environments or insured population s. It also suggests that the length of time to initial restoration of RCT -treated teeth is less than optimal . RCT was almost never performed on teeth with advanced periodontal attachment loss PURPOSE To determine , in a 3-year clinical trial , whether tooth type and ferrule significantly affect the survival of pulpless teeth restored with fiber posts . METHODS A sample of 87 teeth in 87 patients ( 32 men and 55 women , age ranged from 23 to 78 ) were restored using Snowpost : 34 incisors , 12 canines , 25 premolars and 16 molars . The posts were cemented with RelyXUnicem and the core was made with a resin composite ( Dentocore Automix ) . Every tooth was covered with a metal-ceramic or all ceramic crown . Two experimental groups , according to the presence or absence of ferrule , were defined : A ) 45 teeth with ferrule ( > 2 mm height ) ; and B ) 42 teeth without ferrule ( < 2 mm height ) . Patients were reevaluated every 6 months . RESULTS 14 of the total restorations failed ( 16.1 % ) . The failure modes were caries ( n=4 ) , post fracture ( n=4 ) , root fracture ( n=2 ) , and marginal gap , post cement failure , crown cement failure , and periapical lesion ( n= 1 respectively ) . In Group A the failure observed was 6.67 % and in Group B it was 26.20 % . The log-rank test showed statistically significant differences between both groups . According to the type of tooth , the incisors were the teeth with the highest failure rate ( 73.52 % ) , but Chi-square test showed no statistically significant differences among the four tooth types , perhaps because of the low number of the sample PURPOSE The aim of the study was to assess the clinical performance of a compomer restorative material ( Dyract , DeTrey/Dentsply ) for the restoration of Class II cavities , extended into dentin in primary teeth . METHODS The sample of the study consisted of 25 patients with 68 restored cavities . The restorations were evaluated with the modified Ryge criteria at baseline and after 6 , 12 and 24 months . Examination was clinical , radiographic , and observation of cast replicas under scanning electron microscope ( SEM ) . RESULTS After 24 months , 100 % of the restorations were retained , 3 % presented bulk fractures , and 6 % developed secondary caries at cervical margins . After 24 months , there was a significant reduction in marginal integrity while there was only slight change in anatomic form . Proximal contact was defective in 6 % of the restorations and 8 % showed marginal discoloration . SEM evaluation revealed a generalized occlusal and scattered marginal wear with no marginal gaps . CONCLUSION The compomer presented acceptable clinical performance in Class II restorations of primary teeth after 24 months in service Background : CPP-ACP ( Phosphopeptide-Amorphous Calcium Phosphate ) has an important role in caries prevention in pediatric patients . This study was done , because of the great use of CPP-ACP and the need for restoration for teeth treated with CPP-ACP as well as the importance of shear bond strength of adhesives in the success of restorations . Objectives : This study aim ed to evaluate the effect of casein phosphopeptide-amorphous calcium phosphate ( CPP-ACP ) on shear bond strength of dental adhesives to enamel of primary teeth molars . Material s and Methods : This in vitro study was conducted on 180 extracted primary molars . They were r and omly divided into 6 groups and each group was divided into 2 subgroups ( treated with CPP-ACP and untreated ) . In subgroups with CPP-ACP , enamel was treated with CPP-ACP paste 1 h/d for 5 days . Types of adhesives that were evaluated in this study were Tetric N-Bond , AdheSE , AdheSE One F , single Bond 2 , SE Bond , and Adper Prompt L-Pop . Shear bond strength was tested with a universal testing machine and mode of failure was evaluated under stereomicroscope . Data were analyzed by T test , 2-way analysis of variance ( ANOVA ) , Tukey and Fisher exact test using SPSS18 . P < 0.05 was considered as significance level . Results : Shear bond strengths of different adhesive systems to enamel of primary teeth treated and untreated with CPP-ACP showed no significant difference ( P > 0.05 ) . Mode of failure in all groups regardless of CPP-ACP administration was mainly adhesive type . Our results indicated that CPP-ACP did not affect shear bond strength of studied adhesives to primary teeth enamel . Conclusions : To have a successful and durable composite restoration , having a high strength bonding is essential . Considering the wide use of CPP-ACP in preventing tooth decay and the role of adhesive shear bond strength ( SBS ) in success of composite restoration , we conducted the present study to evaluate the effect of CPP-ACP on the SBS of adhesives to primary teeth enamel Background Early childhood caries discloses a distinct clinical pattern , and the teeth most often involved are the maxillary central incisors , lateral incisors , and the maxillary and man-dibular first molars . The maxillary incisors are most severely affected , with deep carious lesions usually involving the pulp . Teeth that have been endodontically treated often have little coronal tooth tissue remaining and as such require a post to retain the core and restoration .This study evaluated and compared the efficacy of EverStick glass fiber-reinforced composite post with ParaPost Taper Lux in primary maxillary anterior teeth . Aim An in vivo study was conducted to evaluate and compare the longevity and failures of two fiber post systems in primary maxillary anterior teeth . Material s and methods A total of 60 severely mutilated primary maxillary anterior teeth from children aged 3 to 5 years were selected according to the inclusion criteria . These teeth were treated endodontically and were r and omly assigned into two groups with 30 sample s in each group , group I : EverStick glass fiber-reinforced composite post , group II : ParaPost Taper Lux post . The evaluation of dislodgment of posts , secondary caries , root fracture , and post fracture was carried out clinical ly and radiographically during every follow-up at 3 , 6 , 9 , and 12 months interval . Results Statistical tests ( Chi-square test , Fisher ’s exact probability test ) suggested that dislodgment of the posts was significant between the two groups at 6 , 9 , and 12 months follow-ups . But within the group during subsequent follow-up intervals , dislodgment of posts as a mode of failure was not statistically significant . However , clinical ly failures were seen in both the study groups . Conclusion Fiber post system has proved to be successful clinical ly in both primary and permanent teeth due to the mono-block effect with luting agent , post system , core material , and bonding to dentin . Thus , today the EverStick glass fiber post system provides a novel way of fabricating cost-effective and less time-consuming custom-made post in treating mutilated maxillary anteriors . How to cite this article Sawant A , Chunawalla Y , Morawala A , Kanchan NS , Jain K , Talathi R. Evaluation of Novel Glass Fiber-reinforced Composite Technique for Primary Anterior Teeth with Deep Carious Lesions : A 12-month Clinical Study . Int J Clin Pediatr Dent 2017;10(2):126 - 130 OBJECTIVE To compare clinical and radiographic outcomes of pulpotomy treatment using calcium-enriched mixture ( CEM ) cement and mineral trioxide aggregate ( MTA ) in carious-exposed vital immature permanent first molars . DESIGN Fifty-one immature molars with clinical carious exposure with symptomatic/asymptomatic pulpitis met the inclusion criteria and r and omly assigned to one of the treatment groups ( CEM [ 26 teeth ; 59 roots ] , MTA [ 25 teeth ; 59 roots ] ) . After performing pulpotomy and covering the radicular pulps with the bio material s , all teeth were permanently restored . Blinded clinical and radiographic evaluations were performed at 6 and 12 months after operation for signs of success or failure . Radiographs were evaluated for complete/partial apical closure . The data were analysed using chi-square test and generalized estimating equation ( GEE ) model . RESULTS There was no significant difference at the baseline between the two experimental groups . All available cases ( 49 teeth ) showed pulp survival and signs of continuous root development after 12 months . Overall , complete apical closure ( apexogenesis ) occurred in 76.8 % and 73.8 % of radiographically interpreted roots in CEM cement and MTA groups , respectively . There was no statistical difference in terms of radiographic outcomes between two groups . CONCLUSIONS Calcium-enriched mixture cement and MTA showed similar performance in pulpotomy of immature caries-exposed permanent molars AIM To compare the treatment outcomes of calcium-enriched mixture ( CEM ) cement and mineral trioxide aggregate ( MTA ) as pulp dressing bio material s in vital pulpotomy of carious primary molars . STUDY DESIGN split-mouth r and omised clinical trial . MATERIAL S AND METHODS Forty children aged 4 - 8 years with 2 carious teeth requiring pulpotomy were selected and r and omly assigned to MTA ( n = 40 ) or CEM ( n = 40 ) groups . After coronal pulp removal , the remaining radicular pulp was covered with an appropriate bio material ; the teeth were then permanently restored . Clinical /radiographic success/failures were blindly evaluated at 6- , 12- and 24-month follow-ups . STATISTICS the recorded data were analyzed with McNemar test and GEE . RESULTS A total of 36 , 33 and 35 patients were available for 6- , 12- and 24-month follow-ups , respectively . At the 12-month follow-up only one and three teeth in the CEM and MTA groups had pathologic external root resorption , respectively . The resorbed teeth were then missed due to extraction /exfoliation at the 24-month follow-up ; all other treated teeth were sign/symptom-free . Overall , clinical and radiographic outcomes in both MTA/CEM groups were comparable at the three follow-ups without significant differences . Time had no significant effect on the success . CONCLUSION MTA and CEM demonstrated favourable treatment outcomes for pulpotomy of carious primary molars ; CEM may be an effective pulp dressing bio material BACKGROUND The authors conducted an in vivo investigation to compare the clinical performance of two commercial one-bottle adhesives and a two-bottle adhesive for restoration of noncarious cervical lesions ( NCCLs ) . METHOD The patient pool consisted of 57 patients and 171 teeth ( three teeth per patient ) , with one NCCL per tooth . Each patient received three resin-based composite restorations , each with a different adhesive : one tooth with a two-bottle , water-based adhesive as the control ; another tooth with a one-bottle , ethanol-based adhesive ; and a third tooth with a one-bottle , solvent-free adhesive . The authors assessed restorations in terms of retention , marginal integrity , margin discoloration and air sensitivity at baseline , six months , one year , two years and three years after initial placement . RESULTS The retention rates at 36 months were 88 percent for the first adhesive , 81 percent for the second adhesive and 90 percent for the third adhesive . No statistically significant differences in retention rates could be shown , with 86 percent of restorations retained overall . Measures of marginal integrity , marginal discoloration and sensitivity also had no statistically significant differences between the three adhesives ( P > .05 ) . CONCLUSIONS All three adhesives performed with acceptable outcomes after a 36-month period , with small differences between the one- and two-bottle systems and between the various solvents . Retention rate was moderately high and air sensitivity was markedly reduced ; however , superficial marginal discoloration and marginal degradation was notable . Certain lesion , tooth and patient characteristics may predispose restorations to retention failure . CLINICAL IMPLICATION S The type of solvent may not be a major factor in retention of Class V restorations in NCCLs . Both single-bottle adhesives and conventional two-bottle adhesives performed acceptably
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 .