scholarly journals Reliability of Fiber Post Bonding to Root Canal Dentin After Simulated Clinical Function In Vitro

2012 ◽  
Vol 37 (4) ◽  
pp. 397-405 ◽  
Author(s):  
K Bitter ◽  
J Perdigão ◽  
M Exner ◽  
K Neumann ◽  
AM Kielbassa ◽  
...  
Keyword(s):  
Bond Strength ◽  
Resin Cement ◽  
The Other ◽  
Hybrid Layer ◽  
Resin Cements ◽  
Anterior Teeth ◽  
Fiber Posts ◽  
Relyx Unicem ◽  
Bond Strengths

SUMMARY The aim of this study was to investigate the effect of thermomechanical loading (TML) on the bond strength of fiber posts luted with three different resin cements. Sixty-six extracted human anterior teeth were endodontically treated and restored with fiber posts (RelyX Fiber Posts, 3M ESPE) using three commercially available resin cements and three corresponding core build-up materials (n=22 each): Panavia F 2.0/Clearfil DC Core Automix (Kuraray), Variolink II/Multicore Flow (Ivoclar Vivadent), and RelyX Unicem/Filtek Z250 (3M ESPE). Twelve specimens of each group received all-ceramic crowns and were subjected to TML. The other 10 specimens were stored in saline solution for 24 hours. The roots were sectioned and bond strength was measured using a push-out test. Adhesive interfaces of two specimens of each group subjected to TML were analyzed using field emission scanning electron microscopy (FESEM). Bond strengths of fiber posts were significantly affected by the type of resin cement (p<0.0005) and TML (p<0.0005; two-way analysis of variance). TML significantly reduced bond strengths for all materials ((6.0 (6.2) MPa)) compared with initial bond strengths ((14.9 (10.4) MPa)). RelyX Unicem resulted in significantly higher bond strengths before ((18.3 (10.3) MPa)) and after TML ((9.8 (7.5) MPa)) compared with the other materials (p<0.0005; Tukey HSD). Using FESEM, Variolink II and Panavia F demonstrated a hybrid layer partly detached from the underlying resin cement, whereas no hybrid layer was observed for RelyX Unicem. The decrease in bond strength after TML suggests that retention of fiber posts may be reduced after clinical function. Therefore, endodontically treated teeth that are restored using fiber posts may benefit from additional reinforcement via coronal restorations using adequate ferrules and/or adhesive techniques.

scholarly journals Passo a passo clínico dos laminados estéticos: uma alternativa restauradora em dentes anteriores

2020 ◽  
Vol 8 (9) ◽  
Author(s):  
Allany Oliveira Andrade ◽  
Ana Vitória Leite Luna ◽  
Isabela Alcântara Farias ◽  
Marcelo Gadelha Vasconcelos ◽  
Rodrigo Gadelha Vasconcelos
Keyword(s):  
Bond Strength ◽  
Sao Paulo ◽  
Resin Cement ◽  
São Paulo ◽  
Resin Cements ◽  
Functional Rehabilitation ◽  
Anterior Teeth ◽  
Ceramic Thickness ◽  
Laminate Veneers

A Odontologia restauradora deve ser praticada da forma mais conservadora possível. Os laminados cerâmicos, usualmente conhecidos como lentes de contato, são considerados uma boa opção para os procedimentos estéticos, pois o seu preparo é limitado ao esmalte, o que os tornam uma abordagem conservadora. Este trabalho objetiva sintetizar informações de bases científicas que corroborem sobre os laminados cerâmicos com ênfase no seu passo a passo clínico. Em reabilitações com laminados estéticos devem ser selecionadas corretamente os casos clínicos e o tipo de cerâmica mais indicada, pois estas se diferem entre si em suas propriedades mecânicas e estéticas. Além disso, o preparo dentário, quando houver, deve ser de até 0,5mm de espessura. Para a moldagem, o material de escolha deve ser de qualidade, onde o mais indicado é a silicona de adição devido a suas propriedades superiores. No que concerne à etapa de cimentação a técnica que associa o ácido hidrofluorídrico, silano e cimento resinoso promove excelente desempenho clínico em longo prazo, podendo chegar a 90% de sucesso clínico após 13 anos de acompanhamento.Descritores: Prótese Dentária; Estética Dentária; Cerâmica; Facetas Dentárias.ReferênciasTurgut S, Bagis B. Effect of resin cement and ceramic thickness on final color of laminate veneers: An in vitro study. J Prosthet Dent. 2013;109(3):179–86.Andrade AO, Silva IVS, Vasconcelos MG, Vasconcelos RG. Cerâmicas odontológicas: classificação, propriedades e considerações clínicas. SALUSVITA. 2017;36(4):1129-52.Souza ROA, Miyashita E. Lentes de contato cerâmicas como alternativa para correção de giroversões e diastemas em área estética. Prótesenews.2014;1(1):38-50.Alhekeir DF, Al-Sarhan RA, Al Mashaan AF. Porcelain laminate veneers: Clinical survey for evaluation of failure. Saudi Dent J. 2014;26(2):63-7.Kumar GV, Poduval TS, Reddy B, Reddy S. A study on provisional cements, cementation techniques, and their effects on bonding of porcelain laminate veneers. J Indian Prosthodont Soc. 2014;14(1):42-9.Soares PV, Spini PH, Carvalho VF, Souza PG, Gonzaga RC, Tolentino AB et al. Esthetic rehabilitation with laminated ceramic veneers reinforced by lithium disilicate. Quintessence Int. 2014;45(2):129-33.Giray EF, Duzdar L, Oksuz M, Tanboga I. Evaluation of the bond strength of resin cements used to lute ceramics on laser-etched dentin. Photomed Laser Surg. 2014;32(7):413-21.Miyashita E, Oliveira GG. Odontologia estética: os desafios da clínica diária. São Paulo: Napoleão; 2014.Vieira D, Monsores VV. Metal Free - Lentes de contato e coroas totais. São Paulo: Santos; 2013.Anusavice JK, Shen C, Rawls HR. Phillips Materiais Dentários. São Paulo: Saunders Elservier; 2013.Bottino MA. Percepção: estética em próteses livres de metal em dentes naturais e Implantes. São Paulo: Artes Médicas; 2009.Greco DG, Carvalho RAC, Silva MD. Odontologia de alta performance: laminados cerâmicos ultra conservadores. São Paulo: Napoleão; 2015.Monteiro J, Polo GG. Effect of ceramic thickness and cement shade on the final shade after bonding using the 3D master system: a laboratory study. Clin Exp Dent Res. 2016;2(1):57-64.Sapata A, Costa JA, Lenza VJ, Francci CE, Witzel MF, Lodovici E. Lentes de contato: harmonização do sorriso sem desgaste dental. clin int j braz dent. 2013;9(2):154-63.Calixto LR, Bandeca MC, Andrade MF. Enceramento diagnóstico: previsibilidade no tratamento estético indireto. R dental press estét. 2011;8(4):26-37.Baratieri LN, Chain MC. Odontologia restauradora: fundamentos e possibilidades. 2.ed. São Paulo: Santos; 2015.Farias Neto A, Gomes EMCF, Sánchez Ayala A, Sánchez Ayala A, Vilanova LSR. Esthetic rehabilitation of the smile with no-prep porcelain laminates and partial veneers. Case Rep Dent. 2015; 2015: 452765Vanlıoğlu BA, Kulak-Özkan Y. Minimally invasive veneers: current state of the art. Clin Cosmet Investig dent. Cosmetic and Investigational Dentistry. 2014;6:101-7.Alves RH, Venâncio GN, Meira JF, Toda C, Conde NCO, Bandeira MFCL. Aesthetic and functional rehabilitation with Alumina: a case report. Reabilitação estética e funcional com Alumina. Braz Dent Sci. 2016;19(4):119-24.Higashi C, Silva MJ, Gomes JC. Preservação da normalidade do periodonto após procedimentos restauradores. Rev Dicas. 2012;1:20-3.Korkut B, Yanikoğlu F, Günday M. Direct Composite Laminate Veneers. J Dent Res Dent Clin Dent Prospects. 2013;7(2):105-11.Pini NP, Aguiar FHB, Lima DANL, Lovadino JR, Terada RSS, Pascotto RC. Advances in dental veneers: materials, applications, and techniques. Clin Cosmet Investig Dent. 2012; 4:9–16Van Noort R. Introdução aos materiais dentários. São Paulo: Mosby elservier 3º ed; 2010.Cardoso PC, Decurcio RA, Lopes LG, Souza JB. Importância da Pasta de Prova (Try-In) na cimentação de facetas cerâmicas – relato de caso. ROBRAC 2011;20(53):166-71.Amoroso AP, Ferreira MB, Torcato LB, Pellizzer EP, Mazaro JVQ, Gennari Filho H. Cerâmicas odontológicas: propriedades, indicações e considerações clínicas. Rev Odontol Araçatuba. 2012;33(2):19-25.Ferracane JL, Stansbury JW, Burke FJ. Self-adhesive resin cements - chemistry, properties and clinical considerations. J Oral Rehabil. 2011;38(4):295-314.Alavi AA, Behroozi Z, Nik Eghbal F. The shear bond strength of porcelain laminate to prepared and unprepared anterior teeth. J Dent (Shiraz). 2017;18(1):50-5.

The Role of Resin Cement on Bond Strength of Glass-fiber Posts Luted Into Root Canals: A Systematic Review and Meta-analysis of In Vitro Studies

2014 ◽  
Vol 39 (1) ◽  
pp. E31-E44 ◽  
Author(s):  
R Sarkis-Onofre ◽  
JA Skupien ◽  
MS Cenci ◽  
RR Moraes ◽  
T Pereira-Cenci
Keyword(s):  
Systematic Review ◽  
Bond Strength ◽  
Meta Analysis ◽  
Resin Cement ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Root Canals ◽  
Fiber Posts ◽  
Glass Fiber Posts

SUMMARY Because there are several ways to cement glass-fiber posts (GFPs) into root canals, there is no consensus on the best strategy to achieve high bond strengths. A systematic review was conducted to determine if there is difference in bond strength to dentin between regular and self-adhesive resin cements and to verify the influence of several variables on the retention of GFPs. This report followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. In vitro studies that investigated the bond strength of GFPs luted with self-adhesive and regular resin cements were selected. Searches were carried out in the PubMed and Scopus databases. No publication year or language limit was used, and the last search was done in October 2012. A global comparison was performed between self-adhesive and regular resin cements. Two subgroup analyses were performed: 1) Self-adhesive × Regular resin cement + Etch-and-rinse adhesive and 2) Self-adhesive × Regular resin cement + Self-etch adhesive. The analyses were carried out using fixed-effect and random-effects models. The results showed heterogeneity in all comparisons, and higher bond strength to dentin was identified for self-adhesive cements. Although the articles included in this meta-analysis showed high heterogeneity and high risk of bias, the in vitro literature seems to suggest that use of self-adhesive resin cement could improve the retention of GFPs into root canals.

scholarly journals Push-Out Bond Strength of Quartz Fiber Posts Luted with Self-Adhesive and Conventional Resin Cements

2016 ◽  
Vol 18 (2) ◽  
pp. 73
Author(s):  
Luiz Cardoso DDS, MSD, PhD ◽  
Élito Araújo DDS, MSD, PhD ◽  
Juan Ramírez DDS, MSD, PhD
Keyword(s):  
Bond Strength ◽  
Resin Cement ◽  
Quartz Fiber ◽  
Hybrid Layer ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Bonferroni Test ◽  
Crown Roots ◽  
Push Out

The aim of this study was to evaluate the influence of the resin cement on push-out bond strength of quartz fiber posts to intraradicular dentin. Fifty-six single-rooted human teeth were selected. After removing the crown, roots were endodontically treated and the dowel spaces were prepared with # 2 post drills of DT Ligth® SL Post System (VDW®). The specimens were randomly divided into four groups (n = 14). Group 1: RelyX™ Unicem (3M ESPE), Group 2: Clearfil ™ SA Cement (Kuraray), Group 3: Bifix SE (Voco), and G4 RelyX™ ARC (3M ESPE). After 24 h, 12 specimens of each group were sectioned in 6 slices with 1 mm of thickness, two of each radicular third. The push-out test was conducted in an Instron machine at 0.5 mm/min. Data were submitted to ANOVA and Bonferroni test. Fractured specimens were observed at 25X to evaluate the types of failures. Two specimens of each group were processed for SEM evaluation. The Mean values (MPa) for groups 1, 2, 3 and 4 were respectively: 11.06, 8.85, 8.37 and 13.36. All experimental groups showed higher values of resistance in the cervical third, while the lowest were in the apical third. Adhesive failures between cement and dentin (46.87 %) prevailed, followed by mixed failures (45.15 %). SEM photomicrographs illustrating the interface formed between the self-adhesive resin cements and dentin showed an interface without the formation of a hybrid layer. G4 showed the formation of a thick and homogeneous hybrid layer with resin tags. The conventional resin cement associated with a three-step adhesive system displayed the higher bond strength to intraradicular dentin, when compared to the different self-adhesive resin cements.

scholarly journals Bonding Effectiveness of Two Adhesive Luting Cements to Glass Fiber Posts: Pull-Out Evaluation of Three Different Post Surface Conditioning Methods

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Lorenzo Graiff ◽  
Laura Rasera ◽  
Marco Calabrese ◽  
Paolo Vigolo
Keyword(s):  
Bond Strength ◽  
Methyl Methacrylate ◽  
Glass Fiber ◽  
Resin Cement ◽  
Resin Cements ◽  
Cement Interface ◽  
Pull Out ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Bond Strengths

The purpose of this study was to evaluate the bond strength at the post/resin-cement interface with 3 different surface treatments of glass fiber posts and with 2 different luting resin cements. Sixty glass fiber posts (RelyX Fiber Post) were randomly divided into 3 groups (n=20) and were luted with a dual-polymerizing self-adhesive universal resin cement (RelyX Unicem) and with a dual-polymerizing resin cement (RelyX ARC). This was carried out in association with a dual-polymerizing adhesive (Scotchbond Multi-Purpose Plus) in simulated plexiglass root canals after receiving three different pretreatment procedures. A pull-out test was performed on each sample to measure bond strengths. Data were analyzed with two-way ANOVA. Two samples from each group were processed for SEM observations in order to investigate the morphologic aspect of the post/cement interface. Both resin cements demonstrated significant different bond strength values (P<0.0001). The surface treatment result was also statistically significant (P=0.0465). SEM examination showed a modification of the post surface after pretreatment with methyl methacrylate. The dual-polymerizing self-adhesive universal resin cement achieved higher MPa bond strength values. The use of methyl methacrylate as a surface treatment of glass fiber posts provided a significant increase in bond strengths between the posts and both luting materials.

scholarly journals Push-Out Bond Strength of Quartz Fiber Posts Luted with Self-Adhesive and Conventional Resin Cements

2016 ◽  
Vol 18 (2) ◽  
pp. 73
Author(s):  
Luiz Cardoso DDS, MSD, PhD ◽  
Élito Araújo DDS, MSD, PhD ◽  
Juan Ramírez DDS, MSD, PhD
Keyword(s):  
Bond Strength ◽  
Resin Cement ◽  
Quartz Fiber ◽  
Hybrid Layer ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Bonferroni Test ◽  
Crown Roots ◽  
Push Out

The aim of this study was to evaluate the influence of the resin cement on push-out bond strength of quartz fiber posts to intraradicular dentin. Fifty-six single-rooted human teeth were selected. After removing the crown, roots were endodontically treated and the dowel spaces were prepared with # 2 post drills of DT Ligth® SL Post System (VDW®). The specimens were randomly divided into four groups (n = 14). Group 1: RelyX™ Unicem (3M ESPE), Group 2: Clearfil ™ SA Cement (Kuraray), Group 3: Bifix SE (Voco), and G4 RelyX™ ARC (3M ESPE). After 24 h, 12 specimens of each group were sectioned in 6 slices with 1 mm of thickness, two of each radicular third. The push-out test was conducted in an Instron machine at 0.5 mm/min. Data were submitted to ANOVA and Bonferroni test. Fractured specimens were observed at 25X to evaluate the types of failures. Two specimens of each group were processed for SEM evaluation. The Mean values (MPa) for groups 1, 2, 3 and 4 were respectively: 11.06, 8.85, 8.37 and 13.36. All experimental groups showed higher values of resistance in the cervical third, while the lowest were in the apical third. Adhesive failures between cement and dentin (46.87 %) prevailed, followed by mixed failures (45.15 %). SEM photomicrographs illustrating the interface formed between the self-adhesive resin cements and dentin showed an interface without the formation of a hybrid layer. G4 showed the formation of a thick and homogeneous hybrid layer with resin tags. The conventional resin cement associated with a three-step adhesive system displayed the higher bond strength to intraradicular dentin, when compared to the different self-adhesive resin cements.

Development of a Cavity Disinfectant Containing Antibacterial Monomer MDPB

2016 ◽  
Vol 95 (13) ◽  
pp. 1487-1493 ◽  
Author(s):  
N. Hirose ◽  
R. Kitagawa ◽  
H. Kitagawa ◽  
H. Maezono ◽  
A. Mine ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Bond Strength ◽  
Bacterial Species ◽  
Oral Bacteria ◽  
Resin Cement ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Significant Difference ◽  
Adhesive Resin Cement

An experimental cavity disinfectant (ACC) that is intended to be used for various direct and indirect restorations was prepared by adding an antibacterial monomer 12-methacryloyloxydodecylpyridinum bromide (MDPB) at 5% into 80% ethanol. The antibacterial effectiveness of ACC and its influences on the bonding abilities of resin cements were investigated. To examine the antibacterial activity of unpolymerized MDPB, the minimum inhibitory and bactericidal concentrations (MIC and MBC) were determined for Streptococcus mutans, Lactobacillus casei, Actinomyces naeslundii, Parvimonas micra, Enterococcus faecalis, Fusobacterium nucleatum, and Porphyromonas gingivalis. Antibacterial activities of ACC and the commercial cavity disinfectant containing 2% chlorhexidine and ethanol (CPS) were evaluated by agar disk diffusion tests through 7 bacterial species and by MIC and MBC measurement for S. mutans. The effects of ACC and CPS to kill bacteria in dentinal tubules were compared with an S. mutans–infected dentin model. Shear bond strength tests were used to examine the influences of ACC on the dentin-bonding abilities of a self-adhesive resin cement and a dual-cure resin cement used with a primer. Unpolymerized MDPB showed strong antibacterial activity against 7 oral bacteria. ACC produced inhibition zones against all bacterial species similar to CPS. For ACC and CPS, the MIC value for S. mutans was identical, and the MBC was similar with only a 1-step dilution difference (1:2). Treatment of infected dentin with ACC resulted in significantly greater bactericidal effects than CPS ( P < 0.05, analysis of variance and Tukey’s honest significant difference test). ACC showed no negative influences on the bonding abilities to dentin for both resin cements, while CPS reduced the bond strength of the self-adhesive resin cement ( P < 0.05). This study clarified that the experimental cavity disinfectant containing 5% MDPB is more effective in vitro than the commercially available chlorhexidine solution to eradicate bacteria in dentin, without causing any adverse influences on the bonding abilities of resinous luting cements.

scholarly journals Adhesive Durability Inside the Root Canal Using Self-adhesive Resin Cements for Luting Fiber Posts

2017 ◽  
Vol 42 (6) ◽  
pp. E167-E176 ◽  
Author(s):  
K Bitter ◽  
A Maletic ◽  
K Neumann ◽  
L Breschi ◽  
G Sterzenbach ◽  
...  
Keyword(s):  
Bond Strength ◽  
Root Canal ◽  
Fiber Post ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Silver Deposits ◽  
Bond Strengths ◽  
One Year ◽  
Push Out

SUMMARY Objectives: The aim of the study was to investigate the effects of various self-adhesive resin cements on the push-out bond strengths and nanoleakage expression at the luting interfaces of fiber posts immediately and after one year of aging. Methods and Materials: One hundred forty-four extracted human anterior teeth were endodontically treated. After post space preparation, fiber posts were luted using five commercially available self-adhesive resin (SAR) cements and a core build-up material applied with a self-etch adhesive (BF: Bifix SE/Rebilda Post, VOCO; CSA: Clearfil SA Cement/Rely X Fiber Post, 3M ESPE; RX: RelyX Unicem 2/Rely X Fiber Post, 3M ESPE; SPC: Speed Cem/FRC Postec, Ivoclar Vivadent; SMC: Smart Cem/X Post, Dentsply; RB: Rebilda DC-Futurabond/Rebilda Post; n=22). For each group, half of the specimens were subjected to thermocycling (TC) (5°C-55°C, 10,000 cycles) and stored humid for one year at 37°C. Push-out bond strength data of six slices (thickness 1 mm) per root and nanoleakage expression of representative specimens were evaluated after 24 hours (baseline) and after TC and storage for one year (aging), respectively. Results: Bond strength differed significantly among resin cements (p&lt;0.0005) and the location inside the root canal (p&lt;0.0005), but not by aging (p=0.390; repeated-measures analysis of variance). SMC (14.6±5.8 MPa) and RX (14.1±6.8 MPa) revealed significantly higher bond strength compared to BF (10.6±5.4 MPa) and RB (10.0±4.6 MPa) but differed not significantly from SPC (12.8±4.8) MPa; CSA (6.1±4.6 MPa) revealed significantly lower bond strength compared to all other investigated materials (p&lt;0.05; Tukey Honestly Significantly Different). Qualitative nanoleakage analysis revealed more silver deposits at the interface in all groups after aging. For CSA, a large amount of silver deposits inside the cement was also observed at baseline and after aging. Conclusions: Fiber post luting using SAR cements demonstrated reliable bond strengths. Product-specific differences and initial degradation effects could be demonstrated.

A Fluoride-containing Composite Resin—An In Vitro Study of a New Material for Orthodontic Bonding

1989 ◽  
Vol 16 (3) ◽  
pp. 207-212 ◽  
Author(s):  
P. A. Cook ◽  
C. C. Youngson
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Glass Ionomer Cement ◽  
In Vitro Study ◽  
The Other ◽  
Glass Ionomer ◽  
New Material ◽  
Bond Strengths ◽  
Ionomer Cement

The shear/peel bond strength of a new material, a ‘hybrid’ of a composite resin and a glass ionomer cement, was compared in vitro with the bond strengths of a composite resin and of a glass ionomer cement. The new material had a significantly greater bond strength than the other materials tested and its properties were very similar to the composite resin. Unlike the glass ionomer cement, etching of the enamel before applying the adhesive is required. The clinical indications for using this new cement are discussed.

scholarly journals Bond Strength of Overdenture Locator Posts Cemented with Seven Luting Agents

2013 ◽  
Vol 14 (4) ◽  
pp. 675-680
Author(s):  
Khalil Aleisa
Keyword(s):  
Bond Strength ◽  
Testing Machine ◽  
Mean Value ◽  
Resin Cement ◽  
Control Group ◽  
Resin Cements ◽  
Human Teeth ◽  
Luting Agents ◽  
Relyx Unicem ◽  
Significant Difference

ABSTRACT Statement of the problem Post retention is crucial factor in restoration survival. Posts are commonly failed due to loss of retention. It is unknown which luting agents would provide the maximum bond strength for Locator overdenture posts. Aim The aim of this study was to evaluate the bond retentive strengths of Locator overdenture posts cemented with 7 luting agents. Materials and methods One hundred and five single rooted human teeth were decoronated and randomly assigned to 7 groups (n = 15). Post spaces were prepared with Locator post drills to the depth of 6 mm. The Locator posts were cemented with Variolink II, RelyX ARC, Multilink N, RelyX Unicem, ParaCore, or MultiCore Flow resin luting agents. Zinc phosphate cement was served as control group. Specimens were stored in water at 37°C for 24 hours. Each specimen was loaded in tension in an Instron universal testing machine. The maximum force required to dislodge each Locator post was recorded. Means and standard deviations were calculated and data were statistically analyzed with one-way analysis of variance (ANOVA). Results The highest mean bond strength value for Locator posts was recorded for MultiCore® Flow group (mean = 550.1 N), while the lowest mean value was for RelyX Unicem™ resin cement group (mean = 216.8 N). A statistically significant difference in mean locator overdenture post bond strength was observed between the 7 cement types (p < 0.0001). ParaCore™ and MultiCore® Flow groups had significantly higher bond strength than all other groups, but they were not differed from each other. Conclusion Bond strength of Locator overdenture posts were influenced by the type of luting agents. MultiCore Flow and ParaCore resin cements offered the greatest retention. Clinical significance The type of luting agents had a significant effect on the retention of Locator posts. The use of Core buildup resin cements as luting agent with Locator post demonstrated the greatest retention. How to cite this article Aleisa K. Bond Strength of Overdenture Locator Posts Cemented with Seven Luting Agents. J Contemp Dent Pract 2013;14(4):675-680.

scholarly journals Influence of Relining Post on the Bond Strength of Resin Cements

2015 ◽  
Vol 16 (7) ◽  
pp. 559-564 ◽  
Author(s):  
Matheus Coelho Bandéca ◽  
Adriano Augusto Melo de Mendonça ◽  
Etevaldo Matos Maia Filho ◽  
Fausto da Silva Bramante ◽  
Darlon Martins Lima ◽  
...  
Keyword(s):  
Bond Strength ◽  
Resin Cement ◽  
The Self ◽  
Fiber Post ◽  
Resin Cements ◽  
Adhesive Resin ◽  
Fiber Posts ◽  
Significant Difference ◽  
Adhesive Cement ◽  
Push Out

ABSTRACT This study evaluated the influence of relining fiber posts on the bond strength (BS) of resin cements in the root canal. Forty bovine teeth were divided in four groups (n = 10)G1 (ARC)—fiber post cemented with resin cement RelyX ARC; G2 (ARC+Z350)—relined fiber post cemented with RelyX ARC; G3 (U200)—fiber post cemented with self-adhesive cement RelyX U200; G4 (U200+Z350)—relined fiber post cemented with RelyX U200. The roots were sectioned in six 1.2-mm slices and the push-out test was performed. Data were analyzed by three-way analysis of variance (ANOVA), and Tukey's test (α = 0.05). For the conventional resin cement, there was no significant difference between groups G1-ARC (15.5 ± 3.8) and G2-ARC+Z350 (16.1 ± 4.5). For the self-adhesive cement, the results revealed higher BS values for relined posts G4-U200 + Z350 (19.9 ± 7.9) as compared to non-relined posts G3-U200 (14.4 ± 4.5). For both cements, in groups of relined posts, the apical and the cervical thirds presented similar BS. Relining enhances the performance of the self-adhesive resin cement, and the interaction between relining and root third influences the BS to the conventional resin cement. How to cite this article Conde DM, Rodrigues VP, de Fátima Carvalho Souza S, Bauer JRO, da Silva Bramante F, Lima SNL, Filho EMM, Bandeca MC, de Mendonça AAM, Lima DM. Influence of Relining Post on the Bond Strength of Resin Cements. J Contemp Dent Pract 2015;16(7):559-564.

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