scholarly journals In vitro evaluation of glass fiber post

2012 ◽  
pp. e204-209 ◽  
Author(s):  
K. Jasjit Kaur ◽  
S. Navneet Sharma ◽  
H. Harpal Singh
Keyword(s):  
Glass Fiber ◽  
Fiber Post ◽  
In Vitro Evaluation ◽  
Glass Fiber Post

scholarly journals Influence of Zingiber officinale Extract on Push-Out Bond Strength of Glass-Fiber Post

2018 ◽  
Vol 29 (1) ◽  
pp. 93-98 ◽  
Author(s):  
Tânia Mara da Silva ◽  
Virgílio Vilas Boas Fernandes Junior ◽  
Rosemary Soares de Santana ◽  
Renata Marques de Melo Marinho ◽  
Márcia Carneiro Valera ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Zingiber Officinale ◽  
Resin Cement ◽  
Fiber Post ◽  
Ginger Extract ◽  
Etch And Rinse ◽  
Glass Fiber Post ◽  
Push Out

Abstract The aim of this study was to evaluate in vitro the influence of 20% glycolic ginger extract on the bond strength of glass-fiber post cemented with etch-and-rinse or self-etching resin cement. Forty-eight bovine roots were standardized (17±0.5 mm) and randomly divided into two groups, according to irrigant used during biomechanical preparation: NaOCl: 1% sodium hypochlorite and GEN: 20% glycolic ginger extract. Root canal was prepared and randomly assigned to one of two subgroups (n=12), according to luting protocol: self-etching (RelyX U200) and etch-and-rinse (RelyX ARC). After 48 h, the roots were sectioned perpendicularly (4 in cervical third and 3 in middle third) and submitted to push-out bond strength test (50 kgf load cell, 1.0 mm/min). Failure mode was analyzed in SEM and stereomicroscopy. Data were analyzed by three-way ANOVA and Tukey tests (p<0.05). ANOVA revealed that there were no significant differences between U200 (2.01±0.17)B and ARC (1.93±0.12)B in GEN group, and at the cervical third for both irrigants, 2.69±0.16A and 2.54±0.17A, respectively. Middle third showed lower bond strength than cervical third, regardless the irrigant. Overall, the cervical third regardless the irrigant employed and the association between NaOCl and ARC, presented better adhesive performance.

Comparison of Different Post Systems for Fracture Resistance: An in vitro Study

2017 ◽  
Vol 18 (3) ◽  
pp. 205-208 ◽  
Author(s):  
Suneel V Vadavadagi ◽  
Kiran M Dhananjaya ◽  
Rashmi P Yadahalli ◽  
M Lahari ◽  
Shilpa R Shetty ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Carbon Fiber ◽  
Glass Fiber ◽  
Fracture Resistance ◽  
Quartz Fiber ◽  
Fiber Post ◽  
Tooth Structure ◽  
Fiber Posts ◽  
Glass Fiber Post

ABSTRACT Introduction Endodontic restoration becomes a challenging task for the clinician because of severe loss of coronal tooth structure owing to trauma, caries, restorative, and endodontic procedures. The restoration of these teeth requires the use of a post and core as individual units or as abutment supports for fixed or removable restorations in a predictable long-term manner. Aim To compare and assess the compressive bond strength of glass, quartz, and carbon fiber posts restored with porcelainfused- to-metal (PFM) crown. Materials and methods A total of 45 upper central incisor teeth having straight root canals, similar anatomically root segments, and fully developed apices were selected. Teeth were divided into three groups of 15 teeth after endodontic treatment. Group I: Teeth inserted with the prefabricated glass fiber post. Group II: Teeth inserted with the quartz fiber post. Group III: Teeth inserted with carbon fiber post. The posts were placed and core was fabricated using composite restoration followed by PFM crown cementation using adhesive resin. Compressive load required to fracture the tooth was measured using a universal loading machine. The difference between the variables was assessed by one-way analysis of variance, followed by Tukey's post hoc test. Results The compressive strength exhibited by carbon fiber posts was highest with a mean of 668.33 ± 26.397, followed by quartz fiber post (635.80 ± 30.390). Least compressive strength was exhibited by glass fiber post (567.53 ± 26.632). An analysis of variance shows statistically highly significant difference (p < 0.005) among the posts used. Conclusion This study concluded that the carbon fiber posts had higher compressive strength than other quartz, glass fiber posts. Clinical significance Endodontic treatment results in loss of a significant part of the tooth structure. Posts restore these teeth and provide retention. How to cite this article Vadavadagi SV, Dhananjaya KM, Yadahalli RP, Lahari M, Shetty SR, Bhavana BL. Comparison of Different Post Systems for Fracture Resistance: An in vitro Study. J Contemp Dent Pract 2017;18(3):205-208.

scholarly journals Impact of Root Dentin Thickness on the in vitro Compressive Strength of Teeth treated with Recent Post and Core Systems

2017 ◽  
Vol 18 (11) ◽  
pp. 1065-1070 ◽  
Author(s):  
Sahil Mogla ◽  
Amit Bhagat ◽  
Litik Mittal ◽  
Tawanpreet Kaur ◽  
Munish Dheeraj ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Glass Fiber ◽  
Analysis Of Variance ◽  
Fiber Post ◽  
Glass Fiber Post ◽  
Root Dentin ◽  
Post And Core ◽  
Post Space ◽  
Dentin Thickness

ABSTRACT Introduction Endodontically treated teeth dry with time, and its dentin undergoes changes making the teeth brittle and friable. The main function of a post is to strengthen or reinforce a weakened root. However, doing a post and core frequently requires the removal of sound tooth tissue. Recent materials introduced in the market for post and cores have been promising. Aim The aim of this study is to evaluate the fracture resistance of endodontically treated extracted permanent teeth with variable remaining root dentin thickness after post space preparation. Materials and methods A total of 270 freshly extracted permanent maxillary central incisors with fully formed apices were selected, decoronated at cementoenamel junction, and divided into three main groups according to remaining root dentin thickness, determined using a Vernier caliper into 0.5, 1, and 1.50 mm after post space preparation. Each group was further divided into three subgroups (subgroup a: Custom-made cobalt–chromium alloy post and core; subgroup b: Prefabricated glass fiber post and composite core; and subgroup c: EverStick fiber post). Each specimen was subjected to compressive load using universal testing machine. The force required to fracture was recorded and data were analyzed using analysis of variance (ANOVA) test. Results Analysis of variance revealed that compressive strength of the tooth is significantly affected by the increase in the remaining dentin thickness after post space preparation (p < 0.05). Furthermore, teeth with custom fabricated posts showed a significantly higher compressive strength (p < 0.05) than prefabricated glass fiber post and EverStick fiber post groups except the group with minimum remaining dentin thickness. Conclusion The present in vitro study revealed that compressive strength of the post and core systems is directly related to the amount of healthy remaining dentin thickness. Hence, efforts to maximize the preservation of natural dentin should be taken during post space preparation. How to cite this article Bhagat A, Mittal L, Mogla S, Kaur T, Dheeraj M, Marwah G. Impact of Root Dentin Thickness on the in vitro Compressive Strength of Teeth treated with Recent Post and Core Systems. J Contemp Dent Pract 2017;18(11):1065-1070.

Retrieval of Glass Fiber Post Using Er:YAG Laser and Conventional Endodontic Ultrasonic Method: An In Vitro Study

2019 ◽  
Vol 28 (9) ◽  
pp. 1024-1028 ◽  
Author(s):  
Janina Golob Deeb ◽  
Kinga Grzech‐Leśniak ◽  
Colby Weaver ◽  
Jacek Matys ◽  
Sompop Bencharit
Keyword(s):  
Glass Fiber ◽  
Er:Yag Laser ◽  
Ultrasonic Method ◽  
In Vitro Study ◽  
Vitro Study ◽  
Fiber Post ◽  
Glass Fiber Post
Sign in / Sign up

Export Citation Format

Share Document