The clinical challenge of achieving marginal adaptation in direct and indirect restorations

Neppelenbroek, Karin Hermana

doi:10.1590/1678-77572015ed005

Cited by 13 publications

(8 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Clinicians should strive to achieve the best possible match for indirect restorations, i.e., the marginal and internal fit of the indirect restoration should not exceed 50 µm for resin cements as specified by the ISO standard [ 42 ]. However, sometimes, it is not possible to achieve a perfect, evenly-distributed cement layer over the entire restoration interface; in such cases, 90 µm-thick layers are clinically acceptable, and higher values may exist in some places (pointwise) [ 43 ]. Even in laboratory conditions is difficult to obtain a cement layer of the same thickness (e.g., KoNroot Cem min.…”

Section: Discussionmentioning

confidence: 99%

The Influence of Cement Layer Thickness on the Stress State of Metal Inlay Restorations—Photoelastic Analysis

et al. 2021

View full text Add to dashboard Cite

The successful restoration of teeth requires a good connection between the inlay and natural tissue. A strong bond may improve retention and reinforce tooth structure. The purpose of this study was to evaluate the influence of cement layer thickness on contraction stress generated during photopolymerization, and to determine the changes in stress state of the cement occurring during aging in water (over 84 days). Two cements were used: resin composite cement (NX3) and self-adhesive resin cement (Maxcem Elite Chroma). A cylindrical sample made of CuZn alloy was used to imitate the inlay. The stress state was measured by photoelastic analysis. The contraction stress of the inlay restoration was calculated for cement layer thicknesses of 25 µm, 100 µm, 200 µm, and 400 µm. For both tested materials, the lowest contraction stress was observed for the thinnest layer (25 µm), and this increased with thickness. Following water immersion, a significant reduction in contraction stress was observed due to hygroscopic expansion. Applying a thin layer (approximately 25 µm) of composite and self-adhesive resin cements resulted in high levels of expansion stresses (over −6 MPa) after water aging.

show abstract

Section: Discussionmentioning

confidence: 99%

The Influence of Cement Layer Thickness on the Stress State of Metal Inlay Restorations—Photoelastic Analysis

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Whereas at 12 months, the difference noted could be due to the loss of retention and chip fracture in group A and due to periapical pathology in one case in Group B even when the restoration was functionally intact. One possible reason for this could be due to presence of marginal gap in restoration tooth interface contributing to the micro or nano leakage which though can't be assessed clinically in the present study [30] . The findings of the present study regarding functional properties of both groups are consistent with the observations done by Balkaya et al in permanent teeth after a period of 12 months [28] .…”

Section: Functional Propertymentioning

confidence: 85%

Clinical performance of Equia Forte: A glass hybrid GIC versus Tetric N Ceram; a bulk fill composite in class II carious primary molars: A 12 month split mouth clinical trial

Shagale¹,

Aby²,

Prabhakar³

et al. 2020

Int. J. Appl. Dent. Sci.

View full text Add to dashboard Cite

The present study aims to clinically evaluate the performance of a glass hybrid glass ionomer cement (GIC), Equia forte (GC India) and a bulk fill composite, Tetric N Ceram (Ivoclar Vivadent) in restoration of class II carious lesions in primary molars for a period of 12 months. A total of 39 patients of 5-9 years with occlusoproximal carious lesion on primary maxillary or mandibular molars were selected and randomly allotted into two groups i.e Group A (Equia Forte) and Group B (Tetric N Ceram). A total of 78 restorations (39 teeth for each group) was placed using Equia Forte and Tetric N Ceram using a split mouth design and were evaluated for a period of 12 months at regular time intervals using FDI criteria by two blinded examiners for esthetic, functional and biological properties. The data were analyzed using one way ANOVA for intragroup comparison and student t test for intergroup comparison. There was no statistically significant difference seen at baseline, 3, 6, 9 and 12 months for esthetic, functional and biological properties within the group. On inter group comparison, there was no statistically significant result observed except for functional property at 6 months with a p value of 0.02. The current study suggests that both Equia Forte and Tetric N Ceram can be a choice of restorative material in class II carious lesions in primary molars.

show abstract

“…Marginal discrepancies at the crown–tooth interface are plaque stagnation areas that facilitate the attachment of oral bacteria and the formation of biofilms, which by then can lead to secondary caries and crown failure. However, the formation of secondary caries around dental crowns can be observed even with no marginal discrepancies [ 111 ]. To overcome this clinical challenge, contact-killing materials may provide a solution to prevent the attachment of microorganisms and the subsequent onset of caries.…”

Section: Contact-killing Materials As a Strategy In Resin-based Rementioning

confidence: 99%

Emerging Contact-Killing Antibacterial Strategies for Developing Anti-Biofilm Dental Polymeric Restorative Materials

et al. 2020

View full text Add to dashboard Cite

Polymeric materials are the first choice for restoring tooth cavities, bonding tooth-colored fillings, sealing root canal systems, and many other dental restorative applications. However, polymeric materials are highly susceptible to bacterial attachment and colonization, leading to dental diseases. Many approaches have been investigated to minimize the formation of biofilms over polymeric restorative materials and at the tooth/material interfaces. Among them, contact-killing compounds have shown promising results to inhibit dental biofilms. Contact-killing compounds can be immobilized within the polymer structure, delivering a long-lasting effect with no leaching or release, thus providing advantages compared to release-based materials. This review discusses cutting-edge research on the development of contact-killing compounds in dental restorative materials to target oral pathogens. Contact-killing compounds in resin composite restorations, dental adhesives, root canal sealers, denture-based materials, and crown cements have all demonstrated promising antibacterial properties. Contact-killing restorative materials have been found to effectively inhibit the growth and activities of several oral pathogens related to dental caries, periodontal diseases, endodontic, and fungal infections. Further laboratory optimization and clinical trials using translational models are needed to confirm the clinical applicability of this new generation of contact-killing dental restorative materials.

show abstract

The clinical challenge of achieving marginal adaptation in direct and indirect restorations

Cited by 13 publications

References 17 publications

The Influence of Cement Layer Thickness on the Stress State of Metal Inlay Restorations—Photoelastic Analysis

The Influence of Cement Layer Thickness on the Stress State of Metal Inlay Restorations—Photoelastic Analysis

Clinical performance of Equia Forte: A glass hybrid GIC versus Tetric N Ceram; a bulk fill composite in class II carious primary molars: A 12 month split mouth clinical trial

Emerging Contact-Killing Antibacterial Strategies for Developing Anti-Biofilm Dental Polymeric Restorative Materials

Contact Info

Product

Resources

About