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BMC Oral Health Mar 2024Several efforts have been made to improve mechanical and biological properties of calcium silicate-based cements through changes in chemical composition of the... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Several efforts have been made to improve mechanical and biological properties of calcium silicate-based cements through changes in chemical composition of the materials. This study aimed to investigate the physical (including setting time and compressive strength) and chemical (including calcium ion release, pH level) properties as well as changes in cytotoxicity of mineral trioxide aggregate (MTA) after the addition of 3 substances including CaCl, NaHPO, and propylene glycol (PG).
METHODS
The systematic review was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Electronic searches were performed on PubMed, Embase, and Scopus databases, spanning from 1993 to October 2023 in addition to manual searches. Relevant laboratory studies were included. The quality of the included studies was assessed using modified ARRIVE criteria. Meta-analyses were performed by RevMan statistical software.
RESULTS
From the total of 267 studies, 24 articles were included in this review. The results of the meta-analysis indicated that addition of PG increased final setting time and Ca ion release. Addition of NaHPO did not change pH and cytotoxicity but reduced the final setting time. Incorporation of 5% CaCl reduced the setting time but did not alter the cytotoxicity of the cement. However, addition of 10% CaCl reduced cell viability, setting time, and compressive strength.
CONCLUSION
Inclusion of 2.5% wt. Na2HPO4 and 5% CaCl2 in MTA can be advisable for enhancing the physical, chemical, and cytotoxic characteristics of the admixture. Conversely, caution is advised against incorporating elevated concentrations of PG due to its retarding effect.
TRIAL REGISTRATION
PROSPERO registration number: CRD42021253707.
Topics: Aluminum Compounds; Calcium Chloride; Calcium Compounds; Dental Cements; Drug Combinations; Oxides; Propylene Glycol; Silicates
PubMed: 38486235
DOI: 10.1186/s12903-024-04103-1 -
Journal of Conservative Dentistry and... Feb 2024The aim of this study was to systematically compare the bond strength of self-adhesive and self-etch or total-etch resin cement to zirconia. The PubMed, ISI (all), and... (Review)
Review
The aim of this study was to systematically compare the bond strength of self-adhesive and self-etch or total-etch resin cement to zirconia. The PubMed, ISI (all), and Scopus databases were searched for the selected keywords up to November 1, 2021, without date or language restrictions. In vitro studies comparing the bond strength of self-adhesive and self-etch or total-etch resin cement to zirconia were eligible for inclusion in the study. The selected articles were divided into four groups based on the type of resin cement and the storage time. Statistical analysis was performed using the Biostat Comprehensive Meta-Analysis Software version 2 ( = 0.05). The effect of conventional cement ( Glass Ionomer (GI), Resin Modified Glass Ionomer (RMGI) and zinc phosphate) was analyzed using descriptive analysis. The initial search yielded 376 articles, of which 26 were selected after a methodological assessment. Two reviewers independently extracted data and assessed the risk of bias. The results showed that the immediate or delay bond strength of the self-adhesive resin cement to zirconia has no significant difference with the bond strength of self-etch resin cement to zirconia. The immediate and delay bond strength of total-etch cement-zirconia was significantly lower than that of self-adhesive cement-zirconia ( = 0.00). A descriptive analysis of the selected articles showed that the bond strength of self-adhesive resin cement to zirconia was significantly higher than total-etch cement. The results of the meta-analysis showed that both self-adhesive and self-etch resin cement (if applied according to their manufacturer's instruction) are suitable for bonding to zirconia.
PubMed: 38463466
DOI: 10.4103/JCDE.JCDE_225_23 -
Pediatric Dentistry Jan 2024The purpose of this study was to present an evidence-based guideline for primary teeth with deep caries or trauma requiring vital pulp therapies (VPT). A systematic... (Meta-Analysis)
Meta-Analysis
The purpose of this study was to present an evidence-based guideline for primary teeth with deep caries or trauma requiring vital pulp therapies (VPT). A systematic review/meta-analysis on vital primary teeth resulting from trauma or caries was conducted using GRADE to assess the certainty of evidence for clinical recommendations. A decision tree was provided for choosing VPTs. No articles on trauma VPT were found. For VPT in primary teeth with deep caries, indirect pulp treatment (IPT) or pulpotomy using the calcium silicate cement (mineral trioxide aggregate [MTA] or Biodentine) show increased success over using direct pulp capping (DPC) and other pulpotomies. Different liners do not affect IPT success (high certainty) or DPC capping agents' success (very low certainty) after 24 months. It is strongly recommended, with high certainty from 24-month data, that calcium silicate cement pulpotomy is preferred over formocresol, ferric sulfate, zinc oxide eugenol pulpotomy, and other pulpotomies. Using selective caries removal and IPT for deep caries is strongly recommended with moderate certainty over complete and stepwise removal. Statistically, this results in significantly fewer pulp exposures. No caries removal and Hall technique crown may be used when indicated (moderate certainty at 24 months). For vital primary incisors with deep caries, pulpotomy was significantly better statistically than pulpectomy. Teeth diagnosed with/without reversible pulpitis pain showed comparable success after 12 months of treatment by IPT or calcium silicate cement pulpotomy. The following had little or no significant effect on MTA pulpotomy success: coronal pulp removal methods; irrigation solution; method to control hemorrhage; base over MTA; treatment in one or two visits; anterior or posterior teeth. Indirect pulp treatment or calcium silicate cement pulpotomy is likely to increase vital pulp therapy success over other VPTs such as direct pulp capping and other pulpotomies after 24 months (moderate certainty).
Topics: Humans; Dental Care; Pulpotomy; Dental Pulp; Calcium; Dental Cements; Glass Ionomer Cements; Tooth, Deciduous; Calcium Compounds; Silicates
PubMed: 38449041
DOI: No ID Found -
Journal of Dentistry May 2024The purpose of this systematic review was to investigate how different interventions can impact the bond strength of additively manufactured crown materials after... (Review)
Review
OBJECTIVE
The purpose of this systematic review was to investigate how different interventions can impact the bond strength of additively manufactured crown materials after cementation.
DATA/SOURCES
Four online databases Ovid MEDLINE, Scopus, Web of Science and Google Scholar were searched up to January 2023. Inclusion criteria were English-language publications, full-text, and in vitro studies only. Exclusion criteria were studies that did not assess the bonding of an additively manufactured crown material to cement or did not conduct any bond strength tests. An assessment of risk of bias was done in accordance with a modified Consolidated Standards of Reporting Trials (CONSORT) checklist. Each study was analysed and compared based on the interventions and bond strength results.
STUDY SELECTION
Six studies satisfied the inclusion and exclusion criteria, five of which evaluated photopolymerised resin and one that tested zirconia manufacturing via 3D printing. All studies observed a low risk of bias. The interventions applied included the type of surface pretreatments, airborne-particle abrasion pressure, cement type, taper of crown, and artificial aging. Three studies compared the bonding performance to milled materials.
CONCLUSIONS
The bond strength of crown materials additively manufactured from photopolymers presented high values and are comparable to milled materials. The systematic review demonstrated there was no definite superior cement type, but airborne-particle abrasion with alumina was generally recommended. There is a clear gap in the literature regarding the bond strength of additively manufactured crowns. Therefore, further research is necessary to evaluate its clinical applicability for permanent restorations.
CLINICAL SIGNIFICANCE
Factors influencing the bond strength of additively manufactured crown materials should be evaluated so dental professionals can adopt procedures that promote the strongest bond.
Topics: Crowns; Dental Bonding; Humans; Dental Materials; Materials Testing; Dental Cements; Zirconium; Surface Properties; Cementation; Printing, Three-Dimensional; Dental Stress Analysis; In Vitro Techniques
PubMed: 38432351
DOI: 10.1016/j.jdent.2024.104908 -
The Saudi Dental Journal Feb 2024Tricalcium silicate-based cements exhibit several beneficial properties for dental health and biocompatibility, which can induce biomineralisation. (Review)
Review
INTRODUCTION
Tricalcium silicate-based cements exhibit several beneficial properties for dental health and biocompatibility, which can induce biomineralisation.
OBJECTIVES
To assess the sealing ability and intratubular penetration of tricalcium silicate-based sealers using warm and cold obturation techniques.
MATERIALS AND METHODS
An electronic search was conducted in PubMed, Scopus, and Web of Science databases for endodontically treated teeth with bioceramics and their sealing capacity in root canal obturation published up to February 2023.
RESULTS
Of the 90 articles, 16 met the inclusion criteria, and only 10 were used for the -analysis, of which four addressed intratubular penetration, four addressed sealing capacity, and two addressed both variables. In the sealing capacity group, the -analysis concluded a standardised mean difference (SMD) of -1.31 in favour of the test group (warm) with a certain nonsignificant trend (p = 0.081); regarding intratubular penetration, the -analysis concluded an SMD = 2.34 in favour of the test group (warm) with significantly greater penetration (p = 0.032).
CONCLUSION
The warm obturation technique introduced significantly greater intratubular penetration than the cold technique, along with a remarkably superior sealing capacity compared to the cold technique, approaching statistical significance.
PubMed: 38419984
DOI: 10.1016/j.sdentj.2023.10.015 -
Medical Science Monitor : International... Feb 2024Glass ionomer cement (GIC) is a self-adhesive dental restorative material composed of a polyacrylic acid liquid and fluoro-aluminosilicate glass powder. It is commonly...
Glass ionomer cement (GIC) is a self-adhesive dental restorative material composed of a polyacrylic acid liquid and fluoro-aluminosilicate glass powder. It is commonly used for cementation during dental restoration. This study aimed to systematically review the existing literature regarding the clinical performance of GIC in load-bearing dental restorations. A comprehensive literature search was conducted in EBSCO, PubMed, Embrace, and Cochrane databases. Only randomized controlled trials (RCTs) were included in the search, and a broad search technique was used, where inclusion and exclusion criteria were applied. After a thorough evaluation, 12 RCTs were extensively reviewed, and whether GIC is suitable for load-bearing restorations was determined. Significant variations in staining surface or margin, color match, translucency, esthetic anatomical form, retention, material fracture, marginal adaptation, surface luster, occlusal contour, wear, and approximal anatomical form indicated the unsuitability of GIC. By contrast, significance differences in patient view and periodontal response indicated that GIC is suitable. No significant differences in postoperative sensitivity, recurrence of caries, or tooth integrity were observed. Nevertheless, the results of the review demonstrated that the clinical performance of GIC is comparable to that of traditional restorative materials with regard to the parameters analyzed. GIC is a suitable restorative material for load-bearing restorations regarding surface margin, esthetic anatomical form, material retention and fracture, marginal adaptation, occlusal contour, wear, and approximal anatomical form. It reduces other parameters, such as postoperative sensitivity, recurrence of caries, and tooth integrity.
Topics: Humans; Glass Ionomer Cements; Tooth, Deciduous; Weight-Bearing; Databases, Factual; Dental Caries
PubMed: 38351604
DOI: 10.12659/MSM.943489 -
International Journal of Paediatric... Jan 2024The International Association of Dental Traumatology (IADT) guidelines include the use of decoronation for the management of complex crown-root fractures but do not... (Review)
Review
INTRODUCTION
The International Association of Dental Traumatology (IADT) guidelines include the use of decoronation for the management of complex crown-root fractures but do not outline how this technique is best employed. The aim of this review is to reach a consensus in the management of the root canal system in decoronated permanent teeth undergoing root submergence and to determine whether this has an impact on the success and survival of the retained root.
MATERIALS AND METHODS
Search included databases MEDLINE via Ebsco, EMBASE via Ovid, Web of Science via Clarivate, PubMed via PubMed.gov, the Cochrane Library via Wiley, cited reference searching and hand searching of relevant journals. Two independent reviewers performed study selection, data extraction and risk of bias assessment using Joanna Briggs Institute (JBI) Critical Appraisal Checklist.
RESULTS AND DISCUSSION
In total, 18 articles were included in qualitative analysis: 17 of these were case reports and one case series. A total of 37 teeth were treated with decoronation either using the Malmgren or an alternative protocol (root submergence following endodontic treatment with gutta-percha [GP] or a calcium silicate cement and vital root submergence). Limited evidence from this review suggests that immediate decoronation and vital root submergence are successful in apexogenesis and preserving alveolar bone. This systematic review has been registered in the International Prospective Register of Systematic Reviews (PROSPERO: registration number CRD42022316266).
PubMed: 38282164
DOI: 10.1111/ipd.13161 -
Dental Materials : Official Publication... Mar 2024Nonthermal atmospheric or low-pressure plasma (NTP) can improve the surface characteristics of dental materials without affecting their bulk properties. This study aimed... (Review)
Review
OBJECTIVES
Nonthermal atmospheric or low-pressure plasma (NTP) can improve the surface characteristics of dental materials without affecting their bulk properties. This study aimed to systematically review the available scientific evidence on the effectiveness of using NTP for the surface treatment of etchable, silica-based dental ceramics before cementation, and elucidate its potential to replace the hazardous and technically demanding protocol of hydrofluoric acid (HF) etching.
METHODS
A valid search query was developed with the help of PubMed's Medical Subject Headings (MeSH) vocabulary thesaurus and translated to three electronic databases: PubMed, Web of Science, and Scopus. The methodological quality of the studies was assessed according to an adapted version of the Methodological Index for Non-Randomized Studies (MINORS).
RESULTS
Thirteen in vitro study reports published between 2008 and 2023 were selected for the qualitative and quantitative data synthesis. The implemented methodologies were diverse, comprising 19 different plasma treatment protocols with various device settings. Argon, helium, oxygen, or atmospheric air plasma may significantly increase the wettability and roughness of silicate ceramics by plasma cleaning, etching, and activation, but the treatment generally results in inferior bond strength values after cementation compared to those achieved with HF etching. The technically demanding protocol of plasma-enhanced chemical vapor deposition was employed more commonly, in which the surface deposition of hexamethyl disiloxane with subsequent oxygen plasma activation proved the most promising, yielding bond strengths comparable to those of the positive control. Lack of power analysis, missing adequate control, absence of examiner blinding, and non-performance of specimen aging were common methodological frailties that contributed most to the increase in bias risk (mean MINORS score 15.3 ± 1.1).
SIGNIFICANCE
NTP can potentially improve the adhesive surface characteristics of dental silicate ceramics in laboratory conditions, but the conventional protocol of HF etching still performs better in terms of the resin-ceramic bond strength and longevity. More preclinical research is needed to determine the optimal NTP treatment settings and assess the aging of plasma-treated ceramic surfaces in atmospheric conditions.
Topics: Dental Porcelain; Dental Bonding; Surface Properties; Resin Cements; Ceramics; Silicates; Oxygen; Materials Testing; Hydrofluoric Acid; Silanes
PubMed: 38281846
DOI: 10.1016/j.dental.2024.01.001 -
Journal of Indian Prosthodontic Society Jan 2024The purpose of this study was to evaluate the difference in marginal bone level, technical and biological complications between screw-retained and cemented all-ceramic... (Meta-Analysis)
Meta-Analysis
Evaluation of marginal bone level, technical and biological complications between screw-retained and cement-retained all-ceramic implant-supported crowns on zirconia abutment: A systematic review and meta-analysis.
PURPOSE
The purpose of this study was to evaluate the difference in marginal bone level, technical and biological complications between screw-retained and cemented all-ceramic implant-supported crowns fabricated on zirconia abutment at different follow-up periods.
MATERIALS AND METHODS
Independent search was conducted in Cochrane Library, EBSCO, and PubMed/PubMed Central/MEDLINE databases and the Google Scholar search engine for prospective studies and randomized controlled trials published between January 2014 and June 2023 evaluating the marginal bone level, technical and biological complications between screw-retained and cemented all-ceramic implant-supported crowns fabricated on zirconia abutment. Meta-analysis was conducted to assess the quantitative data on the marginal bone level and biological complications.
RESULTS
A total of eight studies were included for qualitative synthesis and six studies for quantitative synthesis. For marginal bone level, no statistically significant difference was observed (P = 0.83 and P = 0.69, respectively) during the follow-up period of 3 years and 5 years. For probing depth, the cemented group showed more amount of probing depth than the screw-retained group at a follow-up period of 3 years (P < 0.05) whereas no statistically significant difference was observed at a follow-up period of 5 years (P = 0.73). For bleeding on probing, the cemented group showed more probing depth than the screw-retained group at a follow-up period of 5 years (P = 0.10).
CONCLUSION
The evidence suggests that the screw-retained group showed no statistically significant difference in marginal bone level, comparatively fewer biological complications, and relatively higher technical complications than the cemented group at different follow-up periods.
Topics: Prospective Studies; Dental Implants; Dental Cements; Glass Ionomer Cements; Bone Cements; Bone Screws; Ceramics; Crowns; Zirconium
PubMed: 38263555
DOI: 10.4103/jips.jips_524_23 -
Dental Materials Journal Jan 2024This systematic review investigates the effectiveness of calcium and phosphate ions release on the bioactivity and remineralization potential of glass ionomer cement...
This systematic review investigates the effectiveness of calcium and phosphate ions release on the bioactivity and remineralization potential of glass ionomer cement (GIC). Electronic databases, including PubMed-MEDLINE, Scopus, and Web of Science, were systematically searched according to PRISMA guidelines. This review was registered in the PROSPERO database. Five eligible studies on modifying GIC with calcium and phosphate ions were included. The risk of bias was assessed using the RoBDEMAT tool. The incorporation of these ions into GIC enhanced its bioactivity and remineralization properties. It promoted hydroxyapatite formation, which is crucial for remineralization, increased pH and inhibited cariogenic bacteria growth. This finding has implications for the development of more effective dental materials. This can contribute to improved oral health outcomes and the management of dental caries, addressing a prevalent and costly oral health issue. Nevertheless, comprehensive longitudinal investigations are needed to evaluate the clinical efficacy of this GIC's modification.
Topics: Humans; Glass Ionomer Cements; Calcium; Dental Caries; Phosphates
PubMed: 38220163
DOI: 10.4012/dmj.2023-132