1
|
Liu T, Xie H, Chen C. A comparison of different cleaning approaches for blood contamination after curing universal adhesives on the dentine surface. Dent Mater 2024:S0109-5641(24)00234-3. [PMID: 39129078 DOI: 10.1016/j.dental.2024.07.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 07/25/2024] [Accepted: 07/31/2024] [Indexed: 08/13/2024]
Abstract
OBJECTIVE This study compared the effectiveness of various cleaning approaches, including spray rinsing, repreparing with diamond burs, and using phosphoric acid or sodium hypochlorite alone or with polyphenols (resveratrol or myricetin), in removing blood contamination from the dentine after adhesive light-curing. METHODS The contact angles of the treated surfaces were measured and scanning electron microscopy/ energy dispersive X-ray spectroscopy observation was performed. The bond strength and nanoleakage were assessed, and in situ zymography was performed before and after aging. Interactions between matrix metalloproteinase (MMP)-9 and polyphenols were evaluated using molecular dynamics and rhMMP-9 inhibition analyses. The destruction of sodium hypochlorite on collagen and the resistance of polyphenols-treated dentine collagen to enzymolysis were evaluated using the hydroxyproline (HYP) assay. The effect of polyphenols on dentine collagen crosslinking was assessed by Fourier Transform Infrared Spectroscopy. RESULTS The repreparation group had the lowest contact angle compared to the other groups. The spray rinsing group had the lowest bond strength and highest amounts of nanoleakage. Cleaning with phosphoric acid or sodium hypochlorite alone removed the blood contaminants and parts of the adhesive; moreover, applying polyphenols further improved the bond strength and decreased nanoleakage and MMP activity after aging. Both polyphenols inhibited rhMMP-9 activity and promoted collagen crosslinking. Sodium hypochlorite showed the maximum HYP release when used alone, which was decreased after adding polyphenols. SIGNIFICANCE Phosphoric acid or sodium hypochlorite cleaning can remove blood contamination from the dentine surface after adhesive curing, and the addition of polyphenols can improve the durability of dentine bonding.
Collapse
Affiliation(s)
- Ting Liu
- Department of Endodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Nanjing 210029, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China
| | - Haifeng Xie
- State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Nanjing 210029, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China; Department of Prosthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Chen Chen
- Department of Endodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing 210029, China; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Nanjing 210029, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China.
| |
Collapse
|
2
|
Alkhudhairy F. Experimental and Chitosan-Infused Adhesive with Dentin Pretreated with Femtosecond Laser, Methylene Blue-Activated Low-Level Laser, and Phosphoric Acid. Photobiomodul Photomed Laser Surg 2024. [PMID: 39069884 DOI: 10.1089/pho.2024.0077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024] Open
Abstract
Aim: To prepare experimental adhesive (EA) with 1% and without chitosan nanoparticles on dentin conditioned with a conventional technique phosphoric acid (PA) compared with two different contemporary techniques: photodynamic therapy (PDT) and femtosecond laser (FSL). Method: The methodology consisted of synthesis of EA and 1% chitosan-modified adhesive (CMA). Scanning electron microscopy, dentin adhesive interface assessment, energy-dispersive spectroscopy, shear bond strength (SBS), degree of conversion (DC), and bond failure were assessed. Teeth were selected, disinfected, and mounted in acrylic up to the cementoenamel junction. Occlusal enamel was removed and teeth were randomly allocated into groups and conditioned. These included Group 1: samples treated with PA; Group 2: specimens conditioned with methylene blue photosensitizer (MBP) activated by PDT; and Group 3: samples conditioned with FSL. Following different conditioning regimes, specimens were bonded using 1% CMA and EA. The composite buildup was followed by SBS testing and a bond failure assessment. DC was assessed for both EA and CMA. Analysis of variance and Tukey's post hoc test were used to compare the mean and standard deviation of SBS and DC in different experimental groups, with a significance level of p < 0.05. Results: Dentin pretreated with etch and rinse demonstrated the highest bond strength with 1% CMA. Dentin conditioned with MBP activated by PDT and bonded to EA showed the lowest bond scores. Overall SBS values of 1% CMA were better than EA irrespective of the conditioning regime of dentin. The DC was higher in EA adhesive. This was followed by DC in 1% CMA. DC in EA was found to be comparable with 1% CMA. Conclusions: PA remains the gold standard for dentin conditioning. The incorporation of 1% chitosan in adhesive improves SBS and results in no change in DC. The use of FSL in dentin conditioning can be used as an alternative approach as it results in SBS within acceptable limits. The study was approved by the ethical board of King Saud University.
Collapse
Affiliation(s)
- Fahad Alkhudhairy
- Restorative Dental Sciences Department, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| |
Collapse
|
3
|
Nezir M, Dinçtürk BA, Sarı C, Alp CK, Altınışık H. Effect of fiber-reinforced direct restorative materials on the fracture resistance of endodontically treated mandibular molars restored with a conservative endodontic cavity design. Clin Oral Investig 2024; 28:316. [PMID: 38750289 PMCID: PMC11096213 DOI: 10.1007/s00784-024-05720-4] [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: 03/08/2024] [Accepted: 05/10/2024] [Indexed: 05/18/2024]
Abstract
OBJECTIVE This study aimed to evaluate the fracture strength of teeth restored using fiber-reinforced direct restorative materials after endodontic treatment with a conservative mesio-occlusal access cavity design. MATERIALS AND METHODS A total of 100 extracted intact mandibular first molars were selected and distributed into a positive control group where teeth left intact and the following four test groups comprised of teeth with conservative mesio-occlusal access cavities that had undergone root canal treatment (n = 20/group): access cavity without restoration (negative control), bulk-fill resin composite with horizontal glass fiber post reinforcement, fiber-reinforced composite with bulk-fill resin and bulk-fill resin composite. Following thermocycling (10,000 cycles), fracture resistance was measured using a universal testing machine. Statistical analyses (one-way analysis of variance and the Tamhane test) were performed, and statistical significance was set at p < 0.05. RESULTS Groups with minimally invasive access cavities had lower fracture strength than intact teeth, regardless of the restoration material (p < 0.05). Fiber-reinforced composite groups demonstrated higher fracture strength than bulk-fill resin composite alone (p < 0.05). Fracture types varied among groups, with restorable fractures predominant in the fiber-reinforced composite groups. CONCLUSION This study suggests that using fiber-reinforced composite materials, especially in combination with bulk-fill resin composites, can effectively enhance the fracture strength of endodontically treated teeth with conservative access cavities. However, using only bulk-fill resin composite is not recommended based on the fracture strength results. CLINICAL SIGNIFICANCE When teeth that undergo endodontic treatment are restored using a conservative access cavity design and fiber-reinforced composite materials, especially in combination with bulk-fill resin composites, the fracture strength of the teeth can be effectively increased.
Collapse
Affiliation(s)
- Merve Nezir
- Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, Emek, Ankara, 06510, Turkey
| | - Beyza Arslandaş Dinçtürk
- Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, Emek, Ankara, 06510, Turkey
| | - Ceyda Sarı
- Department of Restorative Dentistry, Faculty of Dentistry, İstanbul Medipol University, İstanbul, Turkey
| | - Cemile Kedici Alp
- Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, Emek, Ankara, 06510, Turkey
| | - Hanife Altınışık
- Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, Emek, Ankara, 06510, Turkey.
| |
Collapse
|
4
|
Geng Vivanco R, Sousa ABS, Oliveira VDDC, Sinhoreti MAC, Pires-de-Souza FDCP. Effect of the use of bromelain associated with bioactive glass-ceramic on dentin/adhesive interface. Clin Oral Investig 2024; 28:106. [PMID: 38244108 DOI: 10.1007/s00784-024-05496-7] [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: 10/17/2023] [Accepted: 01/06/2024] [Indexed: 01/22/2024]
Abstract
OBJECTIVES To evaluate the effect of bromelain associated with Biosilicate on the bond strength (BS) of a universal adhesive system to sound (SD) and caries-affected dentin (CAD), and on the proteolytic activity. MATERIALS AND METHODS Cavities were prepared in 360 molars, half submitted to cariogenic challenge. Teeth were separated into groups (n=20): Control-No treatment; CHX-0.12% chlorhexidine; NaOCl-5% sodium hypochlorite; Br5%-5% bromelain; Br10%-10% bromelain; Bio-10% Biosilicate; NaOClBio-NaOCl+Bio; Br5%Bio-Br5%+Bio; Br10%Bio-Br10%+Bio. Following treatments, the adhesive system was applied, and cavities were restored. Samples were sectioned into sticks and stored at 37 °C for 24 h, 6 months, and 1 year. Microtensile BS (2-way ANOVA, Bonferroni's test, α=0.05), fracture patterns (SEM), and adhesive interfaces (TEM) were evaluated. Bacterial collagenase assay and in situ zymography were performed. RESULTS In CAD, Br10% presented higher BS (p=0.0208) than Br5%Bio. Br5% presented higher BS (p=0.0033) after 6 months than after 24 h; and association of treatments, higher BS (p<0.05) after aging than after 24 h. Mixed fractures were the most prevalent. Association of treatments promoted a more uniform hybrid layer with embedded Bio particles. Experimental groups presented lower (p<0.0001) relative fluorescence units than Control. Bromelain, associated or not with Bio, showed collagenolytic degradation. CONCLUSIONS Bromelain associated with Biosilicate did not affect the BS to SD. In CAD, Br5%Bio decreased immediate BS but had no long-term influence. This association decreased the proteolytic activity. CLINICAL RELEVANCE Bromelain and Biosilicate may enhance the longevity of adhesive restorations by inhibiting endogenous proteases.
Collapse
Affiliation(s)
- Rocio Geng Vivanco
- Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | | | | | | | | |
Collapse
|
5
|
Swetha D, Ballal S, Sundar S, Vasudevan A, Natanasabapathy V. The Outcome of GaAlAs Diode Laser (980 Nm) Pulpotomy in Patients with Symptomatic Irreversible Pulpitis Assessed Using CBCT - Randomised Controlled Trial with an 18-Month Follow-up. Eur Endod J 2024; 9:35-43. [PMID: 38157279 PMCID: PMC10777084 DOI: 10.14744/eej.2023.72687] [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: 01/27/2023] [Revised: 07/01/2023] [Accepted: 08/01/2023] [Indexed: 01/03/2024] Open
Abstract
OBJECTIVE To evaluate the effect of diode laser (GaAlAs-980 nm) for full coronal pulpotomy (FCP) compared to conventional crown pulpotomy (CCP) in mature teeth with symptomatic irreversible pulpitis (SIP) and assess dentine bridge formation after FCP using CBCT. METHODS A total of 86 patients (43 per group) with SIP in permanent mandibular molars were included. Access opening and FCP were done, after which haemostasis was achieved with 2.5% NaOCl in the CCP group and a diode laser (GaAlAs-980 nm) in the laser crown pulpotomy group (LCP). Biodentine (Septodont, Saint-Maur-des-Fossés, France) was placed, and the cavity was sealed. Clinical and radiographic follow-ups were done at 6, 12, and 18 months, with additional CBCT evaluation at 18 months. Statistical analysis was performed using the Mann-Whitney U test, and survival rates were assessed using Kaplan-Meier analysis. The Cox proportional model was used to determine the effect of possible covariates on pulpotomy outcomes. P<0.05 was considered to be statistically significant. RESULTS The overall success rate for CCP and LCP at 18 months was 88.4% and 93% respectively. At the end of 18 months, 8 cases (5 in CCP, 3 in LCP) failed. The postoperative pain score at 48 hours was significantly higher for CCP (mean +- standard deviation: 1.7+-1.4; p<0.001). CBCT analysis at 18 months revealed thicker dentine bridge formation for LCP (Median & IQR: 0.89, 1.06) compared to CCP (p=0.0479). The Kaplan-Meier curve showed a more rapid decline in the survival rate of CCP (0.89) compared to that of LCP (0.93). Postoperative pain at 48 hours, PAI scores at 6, 12, 18 months, and age were found to affect the hazard ratio based on the Cox regression model. CONCLUSION Within the limitations of this trial, there was no significant difference in the outcome between diode laser and conventional pulpotomy. However, LCP resulted in lesser postoperative pain at 48 hours and thicker dentine bridge formation at 18 months, with a longer estimated survival rate. (EEJ-2023-01-011).
Collapse
Affiliation(s)
- Dharshya Swetha
- Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research (MAHER), Chennai, India
| | - Suma Ballal
- Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research (MAHER), Chennai, India
| | - Sathish Sundar
- Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research (MAHER), Chennai, India
| | - Aishwarya Vasudevan
- Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research (MAHER), Chennai, India
| | - Velmurugan Natanasabapathy
- Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research (MAHER), Chennai, India
| |
Collapse
|
6
|
Bedir F, Telatar GY. Comparison of Different Dentin Deproteinizing Agents on Bond Strength and Microleakage of Universal Adhesive to Dentin. JOURNAL OF ADVANCED ORAL RESEARCH 2023. [DOI: 10.1177/23202068231157998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Abstract
Aim: To evaluate the effects of papain (Brix 3000), bromelain, sodium hypochlorite (NaOCl), and chlorine dioxide (ClO2) application to the deep dentin surface on shear bond strength (SBS), microleakage, and dentin surface properties. Materials and Methods: Deep dentin surface ( n = 100) for evaluating SBS, class V preparation at the buccal surface for testing microleakage ( n = 100), and deep dentin slices ( n = 20) for evaluating surface properties were conducted on the 220 molar teeth. Four different deproteinizing agents (Brix 3000, 40% bromelain, 5.25% NaOCl (Chloraxid), and 0.12% ClO2) were applied to the dentin, and then the universal adhesive was used in self-etch (SE) and etch&rinse (E&R). Deproteinizing agents were not applied to the control group. All of the samples were subjected to 5000 cycles of thermal aging at 5ºC–55ºC. SBS (MPa) was tested by a universal testing machine. The microleakage of resin composite bonded with different adhesive modes was evaluated under a stereomicroscope. The changes in the surface morphology were examined with scanning electron microscopy (SEM) and attenuated total reflection – fourier transform infrared spectroscopy (ATR-FTIR). Results: ClO2 exhibited the highest bond strength among deproteinizing agents. Compared to the SE mode, E&R mode significantly showed higher bond strength ( p < .05). In gingival margin, bromelain SE exhibited the highest marginal leakage, while Brix 3000 SE had the lowest mean microleakage score. Conclusion: Deproteinizing with ClO2 was effective in improving the SBS of universal adhesive in the E&R mode to deep dentin. Deproteinization with bromelain before universal adhesive in SE mode showed more microleakage on both the occlusal and gingival surfaces.
Collapse
Affiliation(s)
- Fatih Bedir
- Faculty of Dentistry, Department of Restorative Dentistry, Recep Tayyip Erdogan University, Rize, Turkey
| | - Gül Yıldız Telatar
- Faculty of Dentistry, Department of Restorative Dentistry, Recep Tayyip Erdogan University, Rize, Turkey
| |
Collapse
|
7
|
Ashy LM, Marghalani H. Internal and Marginal Adaptation of Adhesive Resin Cements Used for Luting Inlay Restorations: An In Vitro Micro-CT Study. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6161. [PMID: 36079545 PMCID: PMC9457854 DOI: 10.3390/ma15176161] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
Adequate internal adaptation and marginal sealing of resin luting cements are of particular importance for the success of cemented ceramic inlays. The purpose of this study was to investigate the initial adaptation of different resin cements at the tooth-inlay restoration interface at enamel versus dentin surfaces. Thirty-two extracted human molars were allocated to four groups. One Class II cavity was prepared in each tooth. In each group, half of the cavities’ gingival floors were on enamel while the other halves were on cementum. Lava Ultimate CAD/CAM inlays were luted to the cavities using the following adhesive systems: RelyX Unicem, RelyX Ultimate, eCement, and Variolink Esthetic DC. After staining teeth with silver nitrate solution, marginal and internal gap volumes were determined using micro-CT images. Statistical analyses were conducted by independent t test and one-way ANOVA followed by post hoc Tukey test (p < 0.05). The internal and marginal gap volume values were the highest for Variolink Esthetic DC at the dentin surface (0.629 ± 0.363) and (2.519 ± 1.007), respectively, and the lowest for RelyX Unicem at the enamel surface (0.005 ± 0.004) and (0.009 ± 0.003), respectively. The internal and marginal adaptation on the enamel surface for RelyX Unicem and RelyX Ultimate resin cements were comparable to each other and to eCement but significantly better than Variolink Esthetic DC cement. Regardless of the adhesive resin system used, adaptation on enamel is superior to that on dentin surfaces.
Collapse
Affiliation(s)
- Linah M. Ashy
- DRBBA-Research Group, Oral and Maxillofacial Prosthodontics Department (OMP), Faculty of Dentistry, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia
| | - Hanadi Marghalani
- DRBBA-Research Group, Operative and Esthetic Dentistry Division, Restorative Dentistry Department (RDD), Faculty of Dentistry, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia
| |
Collapse
|
8
|
H S Delgado A, Belmar Da Costa M, Polido MC, Mano Azul A, Sauro S. Collagen-depletion strategies in dentin as alternatives to the hybrid layer concept and their effect on bond strength: a systematic review. Sci Rep 2022; 12:13028. [PMID: 35906302 PMCID: PMC9338246 DOI: 10.1038/s41598-022-17371-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 07/25/2022] [Indexed: 01/01/2023] Open
Abstract
Strategies aiming to improve the longevity of resin-dentin adhesive interface developed so far have only been able to retard the problem. Different approaches are thus needed. The objective of this review was to determine whether the use of collagen-depletion strategies after acid-etching procedures may improve the bond strength of resin-based materials to dentin. A systematic review was planned following 2021 PRISMA statement guidelines, with a search strategy performed in five electronic databases: PubMed/Medline, Scopus, EMBASE, SciELO and IADR Abstract Archive (last search: 17/01/2022). Inclusion criteria encompassed studies which evaluated a collagen-depletion strategy in acid-etched human dentin and tensile/shear bond strength tests. Risk of bias assessment was carried out by two reviewers, working independently on an adapted five-domain risk of bias (RoB) checklist for laboratory studies. Results were synthesized qualitatively, as a meta-analysis was not possible due to limited number of studies and their RoB. A total of eight studies were eligible for inclusion in the systematic review after inclusion/exclusion criteria application. Out of these, two evaluated the effect of using NaOCl followed by an antioxidant, and the remaining six evaluated different enzymatic treatments (bromelain, chondroitinase ABC, papain, and trypsin). None of the studies reported a decrease of bond strength when a collagen-depletion strategy was used, in comparison to traditional hybrid layers (control). All enzymatic treatment studies which respected the inclusion criteria improved the bond strength to dentin. Some specific collagen-depletion strategies seem to play a favorable role in improving immediate bond strengths to dentin. Further research with sound methodology is required to consolidate these findings, since limitations in RoB and a low number of studies were found. The assessment of further proteolytic agents and long-term outcomes is also required.
Collapse
Affiliation(s)
- António H S Delgado
- Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Instituto Universitário Egas Moniz (IUEM), Campus Universitário, Quinta da Granja, Monte de Caparica, 2829-511, Almada, Portugal. .,Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, University College London, London, UK.
| | - Madalena Belmar Da Costa
- Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Instituto Universitário Egas Moniz (IUEM), Campus Universitário, Quinta da Granja, Monte de Caparica, 2829-511, Almada, Portugal
| | - Mário Cruz Polido
- Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Instituto Universitário Egas Moniz (IUEM), Campus Universitário, Quinta da Granja, Monte de Caparica, 2829-511, Almada, Portugal
| | - Ana Mano Azul
- Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Instituto Universitário Egas Moniz (IUEM), Campus Universitário, Quinta da Granja, Monte de Caparica, 2829-511, Almada, Portugal
| | - Salvatore Sauro
- Dental Biomaterials and Minimally Invasive Dentistry, Department of Dentistry, Cardenal Herrera-CEU University, CEU Universities, Valencia, Spain
| |
Collapse
|
9
|
Sanon K, Tichy A, Hatayama T, Thanatvarakorn O, Prasansuttiporn T, Wada T, Shimada Y, Hosaka K, Nakajima M. Addition of metal chlorides to a HOCl conditioner can enhance bond strength to smear layer deproteinized dentin. Dent Mater 2022; 38:1235-1247. [PMID: 35715250 DOI: 10.1016/j.dental.2022.06.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 05/02/2022] [Accepted: 06/05/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To evaluate the effect of smear layer deproteinization using hypochlorous acid (HOCl) with/without metal chlorides (SrCl2 and ZnCl2) on the microtensile bond strength (µTBS) of two simplified adhesives to dentin. METHODS Human dentin surfaces with a standardized smear layer were pretreated using a 105 ppm HOCl solution with/without SrCl2 (0.05 M, 0.1 M, 0.2 M, 0.4 M) or ZnCl2 (0.05 M, 0.1 M, 0.2 M) for 5 s, 15 s, or 30 s. After the deproteinizing solution was washed out with water for 5 s, 15 s, or 30 s, pretreated surfaces were bonded with one-step self-etch adhesive Bond Force II or universal adhesive Clearfil Universal Bond Quick, and µTBS was measured after 24 h. Additionally, the deproteinizing effects of HOCl solutions with/without the metal chlorides were compared by measuring changes in the amide:phosphate ratio using attenuated total reflection Fourier transform infrared spectroscopy. Statistical analysis was performed using multifactor ANOVA, Tukey's post hoc tests and t-tests (p < 0.05). RESULTS Pretreatment with pure HOCl for 15 s and 30 s significantly decreased the amide:phosphate ratio (p < 0.05), indicating effective deproteinization, but the µTBS of both adhesives increased significantly only if HOCl was washed out for 30 s (p < 0.05). Increasing the concentrations of metal chlorides enabled shortening of the wash-out time down to 5 s while maintaining the improved µTBS (p < 0.05). The deproteinizing effect of HOCl was not significantly altered by the addition of metal chlorides (p > 0.05). SIGNIFICANCE The effectiveness of smear layer deproteinization using HOCl can be improved by the addition of metal chlorides, as their increasing concentration allowed to shorten the wash-out time from 30 s down to 5 s.
Collapse
Affiliation(s)
- Kittisak Sanon
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan; Department of Operative Dentistry, Faculty of Dentistry, Chulalongkorn University, 34 Henri Dunant Road, Pathumwan, Bangkok 10330, Thailand
| | - Antonin Tichy
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan; Institute of Dental Medicine, First Faculty of Medicine of the Charles University and General University Hospital in Prague, Karlovo namesti 32, Prague 121 11, Czech Republic
| | - Takashi Hatayama
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - Ornnicha Thanatvarakorn
- Faculty of Dentistry, Bangkokthonburi University, 16/10 Leab Klong Taweewatana Rd., Taweewatana, Bangkok 10170, Thailand
| | - Taweesak Prasansuttiporn
- Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Chiang Mai University, Suthep, Muang Chiang Mai, Chiang Mai 50200, Thailand; Center of Excellence in Materials Science and Technology, Chiang Mai University, Suthep, Muang Chiang Mai, Chiang Mai 50200, Thailand
| | - Takahiro Wada
- Department of Advanced Biomaterials, Graduate School of Medical and Dental Sciences, Medical and Dental Science and Technology, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - Yasushi Shimada
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - Keiichi Hosaka
- Department of Regenerative Dental Medicine, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramotocho, Tokushima 770-8504, Japan
| | - Masatoshi Nakajima
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan; Department of Regenerative Dental Medicine, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramotocho, Tokushima 770-8504, Japan.
| |
Collapse
|
10
|
Favetti M, Schroeder T, Montagner AF, Moraes RR, Pereira-Cenci T, Cenci MS. NaOCl Application after Acid Etching and Retention of Cervical Restorations: A 3-Year Randomized Clinical Trial. Oper Dent 2022; 47:268-278. [PMID: 35584331 DOI: 10.2341/20-166-c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2021] [Indexed: 11/23/2022]
Abstract
This study evaluated the retention of composite resin restorations in noncarious cervical lesions (NCCLs) performed with or without pretreatment with 10% NaOCl solution (deproteinization). A randomized, controlled, split-mouth, doubleblinded trial was carried out. Thirty patients with at least two NCCLs were included in the study. The NCCLs were randomly allocated into two treatment groups: control (acid etching with 37% phosphoric acid + placebo solution + Adper Single Bond 2/3M Oral Care + Filtek Z350/3M Oral Care) or experimental group (acid etching with 37% phosphoric acid + 10% NaOCl solution + Adper Single Bond 2 + Filtek Z350). A calibrated examiner evaluated the restorations at baseline (1 week) and recalls (6, 12, 24, and 36 months) using the FDI criteria. The primary outcome evaluated was retention of the restorations. Data were analyzed by the Kaplan-Meier method and the log-rank test (α=0.05). After 3 years, 64 restorations were evaluated in 23 patients. The annual failure rate was 9% for the control group and 17.8% for the experimental group (deproteinization technique). Considering the failures and their distribution among the characteristics of the patients and NCCLs, no statistically significant differences were observed for the control and experimental treatment groups (p=0.077) or the number of teeth in the mouth (p=0.320). Restorations in the mandible (p=0.039) and premolars (p=0.013) showed significantly lower clinical survival rates. The deproteinization pretreatment with a 10% NaOCl solution did not promote additional retention of restorations in NCCLs. (clinicaltrials. gov: NCT03086720).
Collapse
Affiliation(s)
- M Favetti
- Morgana Favetti, DDS, MS, PhD student, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Brazil
| | - T Schroeder
- Thaiane Schroeder, DDS, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Brazil
| | - A F Montagner
- *Anelise Fernandes Montagner, DDS, MS, PhD, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Brazil
| | - R R Moraes
- Rafael Ratto Moraes, DDS, MS, PhD, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Brazil
| | - T Pereira-Cenci
- Tatiana Pereira-Cenci, DDS, MS, PhD, associate professor, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Brazil
| | - M S Cenci
- Maximiliano Sergio Cenci, DDS, MS, PhD, associate professor, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Brazil
| |
Collapse
|
11
|
de Albuquerque ATQ, Bezerra BO, de Carvalho Leal I, de Moraes MDR, Melo MAS, Passos VF. Resin infiltrant protects deproteinized dentin against erosive and abrasive wear. Restor Dent Endod 2022; 47:e29. [PMID: 36090515 PMCID: PMC9436655 DOI: 10.5395/rde.2022.47.e29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 01/12/2022] [Accepted: 01/20/2022] [Indexed: 11/17/2022] Open
Abstract
Objectives This study aimed to investigate the anti-erosive/abrasive effect of resin infiltration of previous deproteinized dentin. Materials and Methods Dentin slabs were randomly assigned to 3 groups (n = 15): Control (no deproteinization; no resin infiltrant applied), RI (no deproteinization; resin infiltrant applied), and DRI (deproteinization; resin infiltrant applied). After undergoing the assigned treatment, all slabs were subjected to an in vitro cycling model for 5 days. The specimens were immersed in citric acid (0.05 M, pH = 3.75; 60 seconds; 3 times/day) and brushed (150 strokes). Between the challenges, the specimens were exposed to a remineralizing solution (60 minutes). The morphological alterations were analyzed by mechanical profilometry (µm) and scanning electron microscopy (SEM). Data were submitted to one-way analysis of variance (ANOVA) and Tukey tests (p < 0.05). Results Control and RI groups presented mineral wear and did not significantly differ from each other (p = 0.063). DRI maintained a protective layer preserving the dentin (p < 0.001). After erosive/abrasive cycles, it was observed that in group RI, only 25% of the slabs partially evidenced the presence of the infiltrating, while, in the DRI group, 80% of the slabs presented the treated surface entirely covered by a resin-component layer protecting the dentin surface as observed in SEM images. Conclusions The removal of the organic content allows the resin infiltrant to efficiently protect the dentin surface against erosive/abrasive lesions.
Collapse
Affiliation(s)
| | - Bruna Oliveira Bezerra
- Department of Dentistry, School of Dentistry, Fortaleza University, Fortaleza, CE, Brazil
| | - Isabelly de Carvalho Leal
- Department of Restorative Dentistry, School of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Mary Anne S. Melo
- Dental Biomedical Sciences Ph.D. Program, University of Maryland School of Dentistry, Baltimore, MD, USA
- Division of Operative Dentistry, Department of General Dentistry, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - Vanara Florêncio Passos
- Department of Restorative Dentistry, School of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, CE, Brazil
| |
Collapse
|
12
|
Alsubait S, Aljarbou F. Biodentine or Mineral Trioxide Aggregate as Direct Pulp Capping Material in Mature Permanent Teeth with Carious Exposure? A Systematic Review and Meta-analysis. Oper Dent 2021; 46:631-640. [PMID: 35507905 DOI: 10.2341/20-277-lit] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2021] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To evaluate the success rate of direct pulp capping (DPC) with Biodentine in mature permanent teeth with carious vital pulp exposure compared to that of DPC with mineral trioxide aggregate (MTA) by means of a systematic review and meta-analysis. DATA SOURCES The two authors searched independently the literature published through July 31, 2020, in five electronic databases (PubMed, the Cochrane Central Register of Controlled Trials, Web of Science Core Collection, the Wiley Online Library, and the SCOPUS database). STUDY SELECTION The research protocol was previously registered in the PROSPERO database (CRD42020192511). Clinical studies that met the inclusion criteria were chosen and independently screened by the authors. DATA EXTRACTION A custom-designed spreadsheet was used to extract the data. The quality of each study was evaluated by means of the revised Cochrane risk of bias (ROB) tool or the ROB of nonrandomized studies of interventions tool. DATA SYNTHESIS Three randomized controlled trials and one retrospective study met the inclusion criteria. Only one study had a high risk of bias. The included studies reported data on a total of 95 participants with an age range of 8-51 years. No significant difference was observed in the overall treatment outcome when comparing Biodentine with MTA (Risk ratio=1.00, 95% confidence interval [0.93-1.07], p=1.00). CONCLUSIONS Biodentine had comparable clinical and radiographic success to that of MTA when used as a DPC agent in mature permanent teeth with carious vital pulp exposure. Additional high-quality studies are needed.
Collapse
Affiliation(s)
- Sara Alsubait
- *Sara Alsubait, Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Fahd Aljarbou
- Fahd Aljarbou, King Saud University, Riyadh, Saudi Arabia
| |
Collapse
|
13
|
Alkattan R, Koller G, Banerji S, Deb S. Bis[2-(Methacryloyloxy) Ethyl] Phosphate as a Primer for Enamel and Dentine. J Dent Res 2021; 100:1081-1089. [PMID: 34238050 PMCID: PMC8381596 DOI: 10.1177/00220345211023477] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Dental resin composites are commonly used in the restorative management
of teeth via adhesive bonding, which has evolved significantly over
the past few decades. Although current self-etch bonding systems
decrease the number of clinical steps, the acidic functional monomers
employed exhibit a limited extent of demineralization of enamel in
comparison to phosphoric acid etchants, and the resultant superficial
ionic interactions are prone to hydrolysis. This study evaluates the
etching of primers constituted with bis[2-(methacryloyloxy) ethyl]
phosphate (BMEP) of dental hard tissue, interfacial characteristics,
and inhibition of endogenous enzymes. We examine the incorporation of
2 concentrations of BMEP in the formulation of experimental primers
used with a hydrophobic adhesive to constitute a 2-step self-etching
bonding system and compare to a commercial 10–methacryloyloxydecyl
dihydrogen phosphate (10-MDP)–containing system. The interaction of
the primer with enamel and dentine was characterized using scanning
electron, confocal laser scanning, and Raman microscopy while the
polymerization reaction between the BMEP primers and hydroxyapatite
was evaluated by Fourier-transform infrared spectroscopy. The
inhibitory effect against matrix metalloproteinase (MMP) enzymes of
these primers was studied and percentage of inhibition analyzed using
1-way analysis of variance and Tukey’s post hoc test
(P < 0.05). Results of the scanning electron
microscopy micrographs demonstrated potent etching of both enamel and
dentine with the formation of longer resin tags with BMEP primers
compared to the 10-MDP–based system. The BMEP polymerized on
interaction with pure hydroxyapatite in the dark, while the 10-MDP
primer exhibited the formation of salts. Furthermore, BMEP primers
were able to inhibit MMP activity in a dose-dependent manner. BMEP
could be used as a self-etching primer on enamel and dentine, and the
high degree of polymerization in the presence of hydroxyapatite can
contribute to an increased quality of the resin polymer network,
prompting resistance to gelatinolytic and collagenolytic
degradation.
Collapse
Affiliation(s)
- R Alkattan
- Centre for Oral, Clinical and Translational Sciences, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK.,Department of Restorative Dental Science, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - G Koller
- Centre for Oral, Clinical and Translational Sciences, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK.,Centre for Host Microbiome Interactions, King's College London Dental Institute at Guy's Hospital, King's Health Partners, London, UK.,London Centre for Nanotechnology, London, UK
| | - S Banerji
- Centre for Oral, Clinical and Translational Sciences, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK.,Department of Prosthodontics, University of Melbourne, Melbourne, Australia
| | - S Deb
- Centre for Oral, Clinical and Translational Sciences, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK
| |
Collapse
|
14
|
Sinjari B, Santilli M, D’Addazio G, Rexhepi I, Gigante A, Caputi S, Traini T. Influence of Dentine Pre-Treatment by Sandblasting with Aluminum Oxide in Adhesive Restorations. An In Vitro Study. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3026. [PMID: 32645819 PMCID: PMC7372407 DOI: 10.3390/ma13133026] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/20/2020] [Accepted: 07/03/2020] [Indexed: 01/22/2023]
Abstract
Dentine pretreatment through sandblasting procedures has been widely studied but no curve test results are currently available. Thus, the aim herein was to in vitro compare the adhesive strength in sandblasted or not samples using a universal testing machine. Thirty -two bovine teeth were divided into two groups, namely test (n = 16 bars), sandblasting with aluminum oxide particles (50 µm) was performed before the adhesion procedures), and control (n = 16 bars), where no sandblasting procedure was performed. A bi-material curve test was used to evaluate the characteristics of the dentine pretreatment in terms of tensile stress and fracture strength. A scanning electron microscope (SEM) was used to analyze the fracture topography in the composite, bonding, dentin, and at the relative interfaces. The results demonstrated a statistically significant difference between the two groups in terms of tensile stress at maximum load showing values of 84.300 ± 51.342 MPa and 35.071 ± 16.609 MPa, respectively for test and control groups (p = 0.033). Moreover, a fracture strength test showed values of 18.543 ± 8.145 MPa for test and 8.186 ± 2.833 MPa for control group (p = 0.008). In conclusion, the sandblasting treatment of the dentine significantly influenced the mechanical resistance of the adhesion in this in vitro study.
Collapse
Affiliation(s)
- Bruna Sinjari
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (M.S.); (G.D.); (I.R.); (A.G.); (S.C.); (T.T.)
- Electron Microscopy Laboratory, University G. d’Annunzio Chieti-Pescara, 66100 Chieti, Italy
| | - Manlio Santilli
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (M.S.); (G.D.); (I.R.); (A.G.); (S.C.); (T.T.)
- Electron Microscopy Laboratory, University G. d’Annunzio Chieti-Pescara, 66100 Chieti, Italy
| | - Gianmaria D’Addazio
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (M.S.); (G.D.); (I.R.); (A.G.); (S.C.); (T.T.)
- Electron Microscopy Laboratory, University G. d’Annunzio Chieti-Pescara, 66100 Chieti, Italy
| | - Imena Rexhepi
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (M.S.); (G.D.); (I.R.); (A.G.); (S.C.); (T.T.)
- Electron Microscopy Laboratory, University G. d’Annunzio Chieti-Pescara, 66100 Chieti, Italy
| | - Alessia Gigante
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (M.S.); (G.D.); (I.R.); (A.G.); (S.C.); (T.T.)
| | - Sergio Caputi
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (M.S.); (G.D.); (I.R.); (A.G.); (S.C.); (T.T.)
- Electron Microscopy Laboratory, University G. d’Annunzio Chieti-Pescara, 66100 Chieti, Italy
| | - Tonino Traini
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (M.S.); (G.D.); (I.R.); (A.G.); (S.C.); (T.T.)
- Electron Microscopy Laboratory, University G. d’Annunzio Chieti-Pescara, 66100 Chieti, Italy
| |
Collapse
|
15
|
Xu J, Li M, Wang W, Wu Z, Wang C, Jin X, Zhang L, Jiang W, Fu B. A novel prime-&-rinse mode using MDP and MMPs inhibitors improves the dentin bond durability of self-etch adhesive. J Mech Behav Biomed Mater 2020; 104:103698. [DOI: 10.1016/j.jmbbm.2020.103698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 12/11/2022]
|