Post-retained Restorations: A Cost-minimization Analysis Nested in a Randomized Clinical Trial

2021 ◽  
Author(s):  
ALC Pires ◽  
V Poletto-Neto ◽  
LA Chisini ◽  
F Schwendicke ◽  
T Pereira-Cenci
Keyword(s):  
Clinical Trial ◽  
Glass Fiber ◽  
Randomized Clinical Trial ◽  
Cost Minimization ◽  
Health Economic Evaluation ◽  
Rank Test ◽  
Cast Metal ◽  
Cost Minimization Analysis ◽  
Fiber Posts ◽  
Glass Fiber Posts

SUMMARY Objectives: The aim of this study was to assess four post-retained restorative strategies for endodontically treated teeth using cost-minimization analysis. Methods and Materials: The cost-minimization analysis was based on primary data from a randomized clinical trial and followed the Consolidated Health Economic Evaluation Reporting Standards (CHEERS) guidelines. Two hundred twenty-five teeth (141 patients) restored using four strategies—teeth with ferrules+ restored with either glass fiber posts or direct composite or crowns, and teeth without ferrules- restored with either glass fiber or cast metal posts with crowns—were evaluated annually between 2009 and 2018. Initial costs and incremental costs per year were calculated. Survival curves were created using the Kaplan-Meier method and log-rank test. Kruskal-Wallis analysis was followed by Dunn’s test, which was used to compare restorative treatments, with a significance level of 5%. Results: Initial costs were greater for cast metal posts without crowns (US$153.14). Glass fiber posts with composite (US$27.11) were least costly; the most failures occurred in this group, but they were primarily repairable restoration fractures. The number of extractions, and thus cost, was greater for glass fiber posts with crowns. The mean annual cost was significantly lower for teeth restored with composite (p<0.001). Ferrule presence did not significantly impact annual costs. Conclusions: The use of glass fiber posts and direct composite incurred significantly lower annual costs than did other alternatives involving crowns or metal posts.

scholarly journals Evaluation of Clinical Performance of Cast Metal vs. Glass Fiber Posts in the Restoration of Endodontically Treated Teeth

2021 ◽  
Vol 10 (20) ◽  
pp. 1496-1500
Author(s):  
Mohit Bhatnagar ◽  
Leena Tomer ◽  
Pramiti Saxena ◽  
Arti Singh ◽  
Veenuka Sharma ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Clinical Performance ◽  
Treatment Options ◽  
Endodontically Treated Teeth ◽  
Tooth Structure ◽  
Cast Metal ◽  
Fiber Posts ◽  
Intergroup Comparison ◽  
Glass Fiber Posts

BACKGROUND Endodontically treated teeth are usually associated with insufficient coronal and radicular tooth structure and hence, are restored with both cast metal and fiber posts. However, there are limitations in both treatment options. Glass fiber posts have known to show better performance than cast metal posts due to similarity in elastic modulus with dentin. The purpose of this study was to compare and evaluate the performance of glass fiber and cast metal posts in endodontically treated teeth that required intraradicular retention. METHODS 40 endodontically treated teeth were selected in patients and divided into two groups, glass fiber, and cast metal respectively. The participants were randomly allocated to both groups by using their registration number with an allocation ratio of 1:1. Participants were recalled at 3 and 6 months after cementation (baseline) for follow up. Radiographs were taken and evaluation was done according to FDI criteria. The intergroup comparison for the difference of mean scores between the two independent groups was done using the unpaired / independent t test. RESULTS Of the 40 endodontically treated teeth, 20 were restored with fiber posts and 20 were restored with cast metal posts. In total, 8 incisors, 6 canines, 21 premolars, and 5 molar teeth were included. The 6-month clinical survival of fiber posts was 100 % while that of cast metal posts was 95 %. The results were found to be nonsignificant (P = 0.159, 0.231, 0.805 at baseline, 3 months, and 6 months respectively). CONCLUSIONS The overall performance of the glass fiber posts was better than that of cast metal posts within the 6 months’ study period. However, no statistically significant differences were seen. Hence, in short follow up periods, both showed similar results and performed equally well. KEY WORDS Glass Fiber Posts Cast Metal Post Post and Core Technique Endodontically Treated Teeth

scholarly journals Randomized controlled trial comparing glass fiber posts and cast metal posts

2020 ◽  
Vol 96 ◽  
pp. 103334 ◽  
Author(s):  
Rafael Sarkis-Onofre ◽  
Helena Amaral Pinheiro ◽  
Victório Poletto-Neto ◽  
César Dalmolin Bergoli ◽  
Maximiliano Sérgio Cenci ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Glass Fiber ◽  
Controlled Trial ◽  
Cast Metal ◽  
Randomized Controlled ◽  
Fiber Posts ◽  
Glass Fiber Posts

scholarly journals Effect of surface treatments on push-out bond strength of calcium silicate-based cements to fiber posts

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Amr M. Elnaghy ◽  
Ayman Mandorah ◽  
Ali H. Hassan ◽  
Alaa Elshazli ◽  
Shaymaa Elsaka
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Glass Fiber ◽  
Calcium Silicate ◽  
Surface Treatments ◽  
The Other ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Push Out ◽  
Effect Of Surface

Abstract Background To evaluate the effect of surface treatments on the push-out bond strength of Biodentine (BD) and white mineral trioxide aggregate (WMTA) to fiber posts. Methods Two brands of fiber posts were used: Reblida post; RP and RelyX post; RX. Each type of post (n = 80/group) was divided into four groups (n = 20/group) and exposed to surface treatment as follows: Control (no treatment), sandblasting (SB), hydrofluoric acid (HF), and TiF4 4 wt/v%. Each group was further subdivided into two subgroups (n = 10/subgroup) based on the type of CSCs used as follows: Subgroup A: BD and Subgroup B: WMTA. Push-out bond strength of BD and WMTA to glass fiber posts was assessed. Data were statistically analyzed using three-way ANOVA and Tukey’s test. A Weibull analysis was performed on the push-out bond strength data. Results BD showed higher bond strength than WMTA (P < 0.001). The push-out bond strength for posts treated with TiF4 4 wt/v% showed greater bond strength than the other surface treatments (P < 0.05). The BD/RP-TiF4 4 wt/v% showed the greater characteristic bond strength (σ0) (15.93) compared with the other groups. Surface treatments modified the surface topography of glass fiber posts. Conclusions The BD/RP-TiF4 4 wt/v% showed greater bond strength compared with the other groups. The TiF4 4 wt/v% surface treatment enhanced the bond strength of BD and WMTA to glass fiber posts than the other treatments. Surface treatment of fiber post with TiF4 4 wt/v% could be used to improve the bond strength with calcium silicate-based cements.

CAD/CAM Milled Glass Fiber Posts: Adaptation and Mechanical Behavior in Flared Root Canals

2021 ◽  
Author(s):  
MER Gama ◽  
GS Balbinot ◽  
GC Ferreira ◽  
EG Mota ◽  
VCB Leitune ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Fiber Post ◽  
Root Canals ◽  
Fiber Posts ◽  
Cad Cam ◽  
Glass Fiber Posts ◽  
Glass Fiber Post ◽  
Post And Core ◽  
Push Out

SUMMARY This study aimed to evaluate the cementation and mechanical behavior of flared root canals restored with CAD/CAM milled glass fiber post-and-core systems. Sixty-six endodontically treated human canines with a flared root canal were divided into three different groups according to the type of post: GPF received prefabricated posts; GREL received relined glass fiber posts, and GMILLED received CAD/CAM milled glass fiber posts. Cementation was performed with self-adhesive resin cement. The samples were submitted to x-ray microcomputed tomography analysis for the analysis of voids and gaps. The roots were sectioned and submitted to the push-out bond strength test. The load-to-fracture was evaluated in post-and-core systems. GMILLED presented lower void and lower gap volumes when compared to GPF and GREL. On the load-to-fracture test, GREL presented statistically significant higher values than GMILLED. GPF values had no statistically significant difference from the two other groups. On the push-out bond strength test, GPF presented statistically significant lower values when compared to GREL and GMILLED. The most common failure pattern was between dentin and cement in all groups. CAD/CAM milled glass fiber post-and-core systems presented an enhanced adaptation of glass fiber posts to flared root canal systems. Their results were comparable to relined posts in bond strength, while load-to-fracture-results for GMILLED were lower than those for GPF.

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