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Abdel-Gawad S, Dursun E, Ceinos R, Le Goff S, Fasham T, Attal JP, Francois P. Touch-cure activation by marketed universal resin luting cements of their associated primer to dentin. J Oral Sci 2024; 66:139-144. [PMID: 38710613 DOI: 10.2334/josnusd.24-0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
PURPOSE The aim of this study was to investigate the dentin shear bond strength (SBS) and bonding interface of three recently developed "universal" resin luting cements based on different modalities. METHODS The dentin SBS and interfacial analysis of three recently launched "universal" resin luting cements, namely, G-Cem One, RelyX Universal and Panavia SA cement universal, were studied. All bonding protocols, including the previous use of their dedicated primer or universal adhesive in touch-cure mode or light-cure mode were performed. Variolink Esthetic LC used in conjunction with Scotchbond Universal Plus was used as a control group. For each group (n = 9), 10 specimens were tested for dentin SBS and two were examined by scanning electron microscopy. SBS were analyzed by two-way ANOVA followed by Dunnett's test. RESULTS SBS values showed that the three "universal" resin luting cements tested exhibit different adhesive behaviors. G-Cem One with its touch-cure activated primer had a greater SBS to dentin (25.5 MPa) than that of the control group (22.1 MPa). CONCLUSION "Universal" resin luting cements have variable efficacy when used in self-curing mode. The touch-curing mode is also of concern but may show high potential for some formulations.
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Affiliation(s)
- Sarah Abdel-Gawad
- Innovative Dental Materials and Interfaces Research Unit (URB2i), Paris Cité University
| | - Elisabeth Dursun
- Innovative Dental Materials and Interfaces Research Unit (URB2i), Paris Cité University
- Department of Pediatric Dentistry, Henri Mondor Hospital
| | - Romain Ceinos
- Innovative Dental Materials and Interfaces Research Unit (URB2i), Paris Cité University
- Department of Restorative Dentistry, Côte d'Azur University
| | - Stéphane Le Goff
- Innovative Dental Materials and Interfaces Research Unit (URB2i), Paris Cité University
| | - Timothy Fasham
- Innovative Dental Materials and Interfaces Research Unit (URB2i), Paris Cité University
- Department of Restorative Dentistry, Bretonneau Hospital
| | - Jean-Pierre Attal
- Innovative Dental Materials and Interfaces Research Unit (URB2i), Paris Cité University
- Department of Restorative Dentistry, Charles Foix Hospital
| | - Philippe Francois
- Innovative Dental Materials and Interfaces Research Unit (URB2i), Paris Cité University
- Department of Restorative Dentistry, Bretonneau Hospital
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de Souza GHM, Dias-Junior LCDL, Machado RG, Ghidini GP, Minamisako MC, Takashima MTU, Cábia NC, Machado R, da Silveira Teixeira C, Garcia LDFR. Assessing push-out bond strength in re-irradiated teeth: Universal resin cement performance in self-etch and self-adhesive modes. J ESTHET RESTOR DENT 2024; 36:941-950. [PMID: 38475977 DOI: 10.1111/jerd.13220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024]
Abstract
OBJECTIVES To investigate the effect of cumulative doses of radiation on the pushout bond strength (BS) of a universal resin cement used in the self-etch (SE) and self-adhesive (SA) modes to the intraradicular dentin. MATERIALS AND METHODS Forty-eight human teeth were distributed into three groups (n = 16) according to the radiation therapy dose (RT): NoRT (no-radiotherapy), 70RT (70 Gy), and 70 + 70RT (70 Gy + 70 Gy). The teeth were redistributed into two subgroups (n = 8), according to the adhesive mode: SE (NoRT-SE, 70RT-SE, and 70 + 70RT-SE) and SA (NoRT-SA, 70RT-SA, and 70 + 70RT-SA). Data were statistically compared after BS test (ANOVA, Tukey's post hoc test, and Fisher's exact test). RESULTS In the SA mode, BS was significantly higher in nonirradiated teeth compared with 70RT and 70 + 70RT (p < 0.0001). There were no significant differences between SE and SA modes in nonirradiated teeth (p = 0.14). In the 70RT group, SE mode increased BS compared with SA mode (p < 0.0001). Most specimens had adhesive and mixed failures in SA and SE modes, respectively. CONCLUSIONS The universal resin cement in the SE mode had greater BS to the irradiated dentin. When teeth were re-irradiated, the universal resin cement had similar performance in terms of BS, regardless of the adhesive approach. CLINICAL SIGNIFICANCE There is no research establishing a correlation between radiotherapy and its impact on the BS of a universal resin cement used in SE and SA modes to intraradicular dentin.
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Affiliation(s)
| | - Luiz Carlos de Lima Dias-Junior
- Department of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Renata Gondo Machado
- Department of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Gabriela Pasqualin Ghidini
- Department of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | | | | | - Nayara Cardoso Cábia
- Department of Radiotherapy, Oncology Research Center (CEPON), Florianópolis, SC, Brazil
| | - Ricardo Machado
- Department of Restorative Sciences, College of Dentistry, University of Oklahoma, Oklahoma City, Oklahoma, USA
| | - Cleonice da Silveira Teixeira
- Department of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Lucas da Fonseca Roberti Garcia
- Department of Dentistry - Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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Khalil RJ, Al-Shamma AMW. Micro-shear bond strength of a novel resin-modified glass ionomer luting cement (eRMGIC) functionalized with organophosphorus monomer to different dental substrates. Heliyon 2024; 10:e30851. [PMID: 38765086 PMCID: PMC11101864 DOI: 10.1016/j.heliyon.2024.e30851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 03/27/2024] [Accepted: 05/07/2024] [Indexed: 05/21/2024] Open
Abstract
Objectives This study aims to assess and compare the micro-shear bond strength (μSBS) of a novel resin-modified glass-ionomer luting cement functionalized with a methacrylate co-monomer containing a phosphoric acid group, 30 wt% 2-(methacryloxy) ethyl phosphate (2-MEP), with different substrates (dentin, enamel, zirconia, and base metal alloy). This assessment is conducted in comparison with conventional resin-modified glass ionomer cement and self-adhesive resin cement. Materials and methods In this in vitro study, ninety-six specimens were prepared and categorized into four groups: enamel (A), dentin (B), zirconia (C), and base metal alloys (D). Enamel (E) and dentin (D) specimens were obtained from 30 human maxillary first premolars extracted during orthodontic treatment. For zirconia and metal alloys, 48 disks were manufactured using IPS e.max ZirCAD through dry milling and Co-Cr powder alloy by selective laser milling. Each group was further subdivided into three subgroups (n = 8) according to the luting cement used: (1) Fuji PLUS resin-modified glass ionomer luting cement (FP) as a control cement, (2) modified control cement (eRMGIC), and (3) RelyX U 200 (RU 200) self-adhesive resin cement. The two-way analysis of variance and Tukey's HSD were used to assess the data obtained from measuring the μSBS of the samples. Results The results of this study showed that the mean μSBS values of eRMGIC were statistically higher compared to FP in all tested groups (p < 0.001). The mean μSBS results of eRMGIC were non-significantly different from those recorded by RU 200 for all substrates except for the dentin substrate, where the RU200 cement produced significantly higher strength (p < 0.001). The failure modes were limited to a combination of mixed and adhesive failures without pure cohesive failure. Significance The functionalization of FP with an organophosphorus co-monomer (2-MEP) directly affects the adhesion performance of the functionalized cement, which may be utilized to develop a new type of acid-base cement. It exhibited a performance comparable to that of resin-based cement and should serve well under different clinical conditions.
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Affiliation(s)
- Rabeia J Khalil
- Department of Restorative and Aesthetic Dentistry, College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Abdulla M W Al-Shamma
- Department of Restorative and Aesthetic Dentistry, College of Dentistry, University of Baghdad, Baghdad, Iraq
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Eggmann F, Mante FK, Ayub JM, Conejo J, Ozer F, Blatz MB. Influence of universal adhesives and silane coupling primer on bonding performance to CAD-CAM resin-based composites: A laboratory investigation. J ESTHET RESTOR DENT 2024; 36:620-631. [PMID: 37950565 DOI: 10.1111/jerd.13165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/16/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
OBJECTIVE Obtaining strong resin bonds to computer-aided design and computer-aided manufacturing (CAD-CAM) resin-based composites with dispersed fillers (CCRBCs) poses a challenge. Therefore, this study aimed to assess the effect of three universal adhesives and a two-component silane coupling agent on the shear bond strength to three (CCRBCs). MATERIALS AND METHODS Eight hundred and sixty-four specimens of Brilliant Crios, Lava Ultimate, and Tetric CAD were polished or grit blasted, bonded with Adhese Universal DC, One Coat 7 Universal (OC7), and Scotchbond Universal Plus Adhesive (SBU) with or without a silane primer. Shear bond strength was measured after 24 h and 10,000 thermocycles. Linear regressions were performed (α = 0.05). RESULTS After thermocycling, bond strengths were similar for the universal adhesives on polished Brilliant Crios and Lava Ultimate (p ≥ 0.408). Grit blasted Tetric CAD showed no significant differences (p ≥ 0.096). The silane primer had minimal impact on grit blasted Tetric CAD (p ≥ 0.384). The silane primer increased the bond strength of OC7 to Brilliant Crios (p = 0.001) but decreased the adhesion of SBU to Brilliant Crios and Lava Ultimate (p ≤ 0.018). CONCLUSIONS Bond strength of universal adhesives varied with CCRBC type. The two-component silane coupling agent showed mixed effects on adhesive performance. CLINICAL SIGNIFICANCE Selecting universal adhesives from the same CCRBC product line does not always guarantee superior bond strength. The efficacy of silane coupling agents differs based on the bonding substrate.
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Affiliation(s)
- Florin Eggmann
- Department of Preventive and Restorative Sciences, Robert Schattner Center, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Department of Periodontology, Endodontology, and Cariology, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland
| | - Francis K Mante
- Department of Preventive and Restorative Sciences, Robert Schattner Center, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jose M Ayub
- Department of Preventive and Restorative Sciences, Robert Schattner Center, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Julián Conejo
- Department of Preventive and Restorative Sciences, Robert Schattner Center, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Fusun Ozer
- Department of Preventive and Restorative Sciences, Robert Schattner Center, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Markus B Blatz
- Department of Preventive and Restorative Sciences, Robert Schattner Center, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Takamizawa T, Aoki R, Hayashi K, Shoji M, Kasahara Y, Barkmeier WW, Latta MA, Kamimoto A, Miyazaki M. Scanning electron microscopy observation of dentin bond interfaces in different types of resin luting cements. Dent Mater J 2024; 43:179-190. [PMID: 38246629 DOI: 10.4012/dmj.2023-219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
This study aimed to observe and compare the resin luting cement (RLC)/dentin interfaces of different types of RLC systems with scanning electron microscopy (SEM). This study evaluated six self-adhesive resin luting cement systems (SARLCs), four systems combining a SARLC with a tooth primer (SARLCPs), and six conventional resin luting cement systems (CVRLCs). Cured resin composite rods were bonded to bovine dentin using RLCs in different etching modes. The morphological features at the interfaces were observed using SEM. Although all RLCs in etch-&-rinse (ER) mode showed a clear hybrid layer, most SARLCs had a thinner and more porous hybrid layer than the SARLCPs and CVRLCs. All SARLCPs with primer and CVRLCs showed a thin high-density layer below the primer layer in both etching modes. CVRLCs and SARLCPs with primer treatment systems may be more versatile and reliable when compared to simplified RLC systems.
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Affiliation(s)
| | - Ryota Aoki
- Department of Operative Dentistry, Nihon University School of Dentistry
| | - Kana Hayashi
- Department of Operative Dentistry, Nihon University School of Dentistry
| | - Mone Shoji
- Department of Operative Dentistry, Nihon University School of Dentistry
| | - Yuta Kasahara
- Department of Operative Dentistry, Nihon University School of Dentistry
| | - Wayne W Barkmeier
- Department of General Dentistry, Creighton University School of Dentistry
| | - Mark A Latta
- Department of General Dentistry, Creighton University School of Dentistry
| | - Atsushi Kamimoto
- Department of Comprehensive Dentistry and Clinical Education, Nihon University School of Dentistry
| | - Masashi Miyazaki
- Department of Operative Dentistry, Nihon University School of Dentistry
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Hadis MA, Shortall AC, Palin WM. The power of light - From dental materials processing to diagnostics and therapeutics. Biomater Investig Dent 2024; 11:40308. [PMID: 38645925 PMCID: PMC11022655 DOI: 10.2340/biid.v11.40308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/12/2024] [Indexed: 04/23/2024] Open
Abstract
Harnessing the power of light and its photonic energy is a powerful tool in biomedical applications. Its use ranges from biomaterials processing and fabrication of polymers to diagnostics and therapeutics. Dental light curable materials have evolved over several decades and now offer very fast (≤ 10 s) and reliable polymerization through depth (4-6 mm thick). This has been achieved by developments on two fronts: (1) chemistries with more efficient light absorption characteristics (camphorquinone [CQ], ~30 L mol-1 cm1 [ʎmax 470 nm]; monoacylphosphine oxides [MAPO], ~800 L mol-1 cm-1 [ʎmax 385 nm]; bisacylphosphine oxide [BAPO], ~1,000 L mol-1 cm-1 [ʎmax 385 nm]) as well mechanistically efficient and prolonged radical generation processes during and after light irradiation, and; (2) introducing light curing technologies (light emitting diodes [LEDs] and less common lasers) with higher powers (≤ 2 W), better spectral range using multiple diodes (short: 390-405 nm; intermediate: 410-450 nm; and long: 450-480 nm), and better spatial power distribution (i.e. homogenous irradiance). However, adequate cure of materials falls short for several reasons, including improper selection of materials and lights, limitations in the chemistry of the materials, and limitations in delivering light through depth. Photonic energy has further applications in dentistry which include transillumination for diagnostics, and therapeutic applications that include photodynamic therapy, photobiomodulation, and photodisinfection. Light interactions with materials and biological tissues are complex and it is important to understand the advantages and limitations of these interactions for successful treatment outcomes. This article highlights the advent of photonic technologies in dentistry, its applications, the advantages and limitations, and possible future developments.
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Affiliation(s)
- Mohammed A Hadis
- Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Adrian C Shortall
- Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - William M Palin
- Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
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Josic U, D'Alessandro C, Miletic V, Maravic T, Mazzitelli C, Jacimovic J, Sorrentino R, Zarone F, Mancuso E, Delgado AH, Breschi L, Mazzoni A. Clinical longevity of direct and indirect posterior resin composite restorations: An updated systematic review and meta-analysis. Dent Mater 2023; 39:1085-1094. [PMID: 37827872 DOI: 10.1016/j.dental.2023.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/21/2023] [Accepted: 10/05/2023] [Indexed: 10/14/2023]
Abstract
OBJECTIVES To answer the PICO(S) question: Is there a difference in clinical longevity between direct and indirect resin composite restorations placed on permanent posterior teeth? DATA Randomized controlled clinical trials (RCTs) investigating direct and indirect resin composite restorations in posterior permanent teeth were considered. SOURCES Several electronic databases were searched, with no language or date restrictions. The revised Cochrane Collaboration's tool for assessing risk of bias (RoB-2) was used to analyze the studies; meta-analyses were run and the certainty of evidence was assessed by the GRADE tool. A subgroup meta-analysis was performed for resin composite restorations placed on posterior worn dentition. STUDY SELECTION Twenty-three articles were included in qualitative synthesis, while 8 studies were used for meta-analyses. According to the RoB-2 tool, 5 studies were ranked as "low risk", 7 had "some concerns", while 11 papers were rated as "high risk" of bias. There were no statistically significant differences in short-term (p = 0.27; RR=1.54, 95% CI [0.72, 3.33]), medium-term (p = 0.27; RR=1.87, 95% CI [0.61, 5.72]) and long-term longevity (p = 0.86; RR=0.95, 95% CI [0.57, 1.59]). The choice of restorative technique had no influence on short-term survival of resin composite restorations placed on worn dentition (p = 0.13; RR=0.46, 95% CI [0.17, 1.25]). The certainty of evidence was rated as "very low". CONCLUSIONS Direct and indirect resin composite restorations may show similar clinical longevity in posterior region, regardless of the observation period or substrate (wear-affected and non-affected dentition). The very low quality of evidence suggests that more long-term RCTs are needed to confirm our results.
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Affiliation(s)
- Uros Josic
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Carlo D'Alessandro
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Vesna Miletic
- Sydney Dental School, Faculty of Medicine and Health, University of Sydney, Sydney 2145, Australia
| | - Tatjana Maravic
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Claudia Mazzitelli
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Jelena Jacimovic
- Central Library, School of Dental Medicine, University of Belgrade, Serbia
| | - Roberto Sorrentino
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, Division of Prosthodontics and Digital Dentistry, University "Federico II" of Naples, Italy
| | - Fernando Zarone
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, Division of Prosthodontics and Digital Dentistry, University "Federico II" of Naples, Italy
| | - Edoardo Mancuso
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - António Hs Delgado
- Egas Moniz Center for Interdisciplinary Research (CiiEM), Monte de Caparica, Almada 2829-511, Portugal; Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London, UK
| | - Lorenzo Breschi
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
| | - Annalisa Mazzoni
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
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Breschi L, Josic U, Maravic T, Mancuso E, Del Bianco F, Baldissara P, Mazzoni A, Mazzitelli C. Selective adhesive luting: A novel technique for improving adhesion achieved by universal resin cements. J ESTHET RESTOR DENT 2023; 35:1030-1038. [PMID: 36971211 DOI: 10.1111/jerd.13037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/22/2022] [Accepted: 03/08/2023] [Indexed: 03/29/2023]
Abstract
OBJECTIVE We aimed to introduce the concept of "Selective adhesive luting-SAL" which is explained through clinical steps and supported by preliminary laboratory evidence. CLINICAL CONSIDERATIONS Cementation with rubber dam is difficult to perform in case of short abutment teeth and/or subgingival crown margins. By means of universal resin cements/universal adhesive systems, which can be employed in self-adhesive as well as adhesive luting procedures, this paper presents a novel technique allowing clinicians to perform reliable cementation where rubber dam isolation is difficult. The SAL technique entails the application of a universal adhesive system only on easily accessible abutment surfaces, enabling simultaneous adhesive and self-adhesive luting in different portions of the abutment. The SAL clinical workflow is explained through prosthodontic rehabilitation of maxillary right central incisor affected by microdontia and restored with a lithium-disilicate crown. Furthermore, our laboratory microshear bond strength study supports the rationale behind SAL application demonstrating higher bond strength even when the adhesive resin is placed only on one portion of the cementation substrate. CLINICAL SIGNIFICANCE This article advocates the application of SAL technique in clinical situations where effective adhesive luting is uncertain, since it can improve the adhesion between the tooth and universal resin cements.
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Affiliation(s)
- Lorenzo Breschi
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Uros Josic
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Tatjana Maravic
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Edoardo Mancuso
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Federico Del Bianco
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Paolo Baldissara
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Annalisa Mazzoni
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Claudia Mazzitelli
- Department for Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
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Josic U, Mazzitelli C, Maravic T, Comba A, Cadenaro M, Radovic I, Sebold M, Turco G, Breschi L, Mazzoni A. The effect of carbodiimide on push-out bond strength of fiber posts and endogenous enzymatic activity. BMC Oral Health 2023; 23:399. [PMID: 37328778 PMCID: PMC10276460 DOI: 10.1186/s12903-023-03067-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 05/21/2023] [Indexed: 06/18/2023] Open
Abstract
BACKGROUND To investigate the effect of 0.3 M 1-ethyl-3(3-dimethylaminopropyl) carbodiimide (EDC) aqueous solution pretreatment on push-out bond strength (PBS) and matrix-metalloproteinases (MMPs) activity within radicular dentin when different post cementation strategies were employed. METHODS One hundred and twenty monoradicular human teeth were endodontically treated and randomly divided into six groups, depending on the cementation strategy and root dentin pretreatment (n = 20): EAR: cementation with an etch-and-rinse adhesive (LuxaBond Total Etch, DMG) and resin cement (LuxaCore Z Dual, DMG); EAR/EDC: 1 min EDC pretreatment after etching + EAR; SE: cementation with a self-etch primer (Multilink Primer, Ivoclar Vivadent) and corresponding cement (Multilink Automix, Ivoclar Vivadent); SE/EDC: self-etch primer + EDC pretreatment + SE; SA: cementation with a universal self-adhesive cement (RelyX Universal, 3 M); SA/EDC: EDC pretreatment + SA. Slices were submitted to PBS test and interfacial nanoleakage evaluation 24 h after cementation or after thermocycling (40.000 cycles, 5-55 °C). To investigate the effect of EDC on MMPs activity, 4 additional first maxillary premolars per group were processed for in situ zymography analysis. Multivariate ANOVA and post hoc Tukey tests were used to analyze PBS values. The data from in situ zymography were analyzed with Kruskal-Wallis test and Dunn's pairwise multiple comparison procedures (α = 0.05). RESULTS The variables "EDC pretreatment", "root region" and "thermocycling" significantly influenced PBS (p < 0.05), while the variable "cementation strategy" had no influence (p > 0.05). Thermocycling significantly reduced PBS in SE and SA groups (p < 0.05). EDC was effective in preserving PBS after artificial aging. EDC pretreatment significantly reduced enzymatic activity at baseline in EAR and SE groups, and in SA group after thermocycling (p < 0.05). CONCLUSIONS The use of EDC prevents the reduction of bond-strength values after artificial aging and silences endogenous enzymatic activity within radicular dentin when different cementation strategies were employed.
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Affiliation(s)
- Uros Josic
- Department for Biomedical and Neuromotor Sciences, Dental Clinic, DIBINEM, University of Bologna, Via San Vitale 59, Bologna, 40125, Italy
| | - Claudia Mazzitelli
- Department for Biomedical and Neuromotor Sciences, Dental Clinic, DIBINEM, University of Bologna, Via San Vitale 59, Bologna, 40125, Italy
| | - Tatjana Maravic
- Department for Biomedical and Neuromotor Sciences, Dental Clinic, DIBINEM, University of Bologna, Via San Vitale 59, Bologna, 40125, Italy
| | - Allegra Comba
- Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Milena Cadenaro
- Department of Medical Sciences, University of Trieste, Trieste, Italy
- Institute for Maternal and Child Health-IRCCS "Burlo Garofolo,", Trieste, Italy
| | - Ivana Radovic
- Clinic for Paediatric and Preventive Dentistry, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Maicon Sebold
- Department of Restorative Dentistry, Operative Dentistry Division, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil
| | - Gianluca Turco
- Department of Medical Sciences, University of Trieste, Trieste, Italy
| | - Lorenzo Breschi
- Department for Biomedical and Neuromotor Sciences, Dental Clinic, DIBINEM, University of Bologna, Via San Vitale 59, Bologna, 40125, Italy
| | - Annalisa Mazzoni
- Department for Biomedical and Neuromotor Sciences, Dental Clinic, DIBINEM, University of Bologna, Via San Vitale 59, Bologna, 40125, Italy.
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