Retention Force of Glass Ionomer Based Luting Cements with Posterior Primary Zirconium Crowns – A Comparative in Vitro Study

Abstract

Objective: To determine the retentive force of three glass-ionomer luting cements used with prefabricated primary zirconium crowns (PPZCs) and to assess whether the retentive force was dependent on cementation material or different PPZCs brands. Study design: Four mandibular right second molar PPZCs were selected, one each from four manufacturers–NuSmile®ZR, Sprig Crowns, Cheng Crowns and Kinder Krowns. Silicone impressions of the outer surface of crowns were taken; stone dies prepared and reduced to fit the corresponding brand. 24 alginate impressions of each die obtained and filled with core buildup flowable composite. 96 composite tooth-replicas thus achieved were divided into four groups and further categorized into three subgroups of eight samples based on luting cements used – BioCem, FujiCEM®2 and KetacCem. Samples were thermocycled, placed in artificial saliva for one week followed by assessment of retentive force for crown dislodgment and failure mode. Results: Data was statistically evaluated using two-way ANOVA, HSD (P <0.05). KetacCem had the lowest retentive force while BioCem showed comparatively higher value to FujiCEM®2. Adhesive failure modes were predominant with cement mainly adhering to crown’s internal surface. Conclusions: Resin-based GI cements offered superior retention than conventional GI cements for PPZCs and retentive force was dependent on cement type.

Evaluation of compressive strength, surface microhardness, solubility and antimicrobial effect of glass ionomer dental cement reinforced with silver doped carbon nanotube fillers

“…It has been employed in a variety of dental applications, including minimally invasive and atraumatic direct restoratives, liner and bases, pit and fissure sealants, and endodontic sealers [ 8 , 9 ]. Clinicians prefer to use GICs for long-term temporary restorations, the sandwich approach, luting agent, root caries, and permanent restorations in non-stress bearing areas, also cementation of orthodontic appliances and prosthodontic frameworks on the primary teeth [ 10 – 12 ]. Their properties are generally attractive for these applications and include high aesthetic properties, biocompatibility, fluoride-releasing and remineralization ability, chemical adhesion to the tooth surface, and matching the coefficient of thermal expansion of the natural tooth [ 13 , 14 ].…”

Oxidized Natural Biopolymer for Enhanced Surface, Physical and Mechanical Properties of Glass Ionomer Luting Cement

“…GICs are known for their biocompatibility and low cytotoxicity. They release fluoride, which has antibacterial actions and helps prevent secondary caries and remineralize the tooth structure [ 4 ] and provides long-term protection to the tooth-restoration interface. Being easier to handle and manipulate during the cementation process and the ability to set and bond in the presence of moisture, GIC luting is an appropriate luting choice in most clinical situations.…”

“…Self-adhesive resin cement is a relatively new addition to luting materials, offering favourable properties [ 3 ]. However, it does not possess the same anti-cariogenic properties as conventional GIC or resin-modified GIC, and it is also intolerant to moisture [ 4 ].…”

Influence of Cement Thickness on Stress Distribution for Two Dental Implants Restored With Zirconia Crowns

“…On the other hand, while comparatively less robust and adhesive than resin cement, glass ionomer cement offers distinctive advantages, including the release of fluoride ions, which effectively deter sub-coronal cavities. These types of cement are often employed in scenarios where mechanical strength is not of primary concern but where enhanced protection against cavities is imperative [33,34]. They are widely utilized in crown restorations directly on the tooth.…”