Wear behavior of a microhybrid composite vs. a nanocomposite in the treatment of severe tooth wear patients: A 5-year clinical study

Ning, Ke; Bronkhorst, Ewald M.; Bremers, Andreas J A; Bronkhorst, Hilde; Meer, W. van der; Yang, Fang; Leeuwenburgh, Sander C.G.; Loomans, Bas

doi:10.1016/j.dental.2021.09.011

Cited by 20 publications

(12 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…With advancements in nanotechnology in recent years, dental composites with nanoparticles were introduced. Microhybrid composites and nanocomposites are the most commonly used materials for direct dental restorations with microscale/nanoscale, individual/clustered nanoscale glass fillers, respectively ( 6 ). As claimed, a high surface/volume ratio in nanocomposites results in improved mechanical, thermal, and optical properties ( 7 ).…”

Section: Introductionmentioning

confidence: 99%

Color Stability of Dental Composites after Immersion in Beverages and Performed Whitening Procedures

Korać¹,

Ajanović²,

Džanković³

et al. 2022

Acta Stomatol Croat

View full text Add to dashboard Cite

Objectives The study aimed to compare the color stability of two different light-cured composites after immersion in three liquids and the effectiveness of 16% carbamide peroxide (CP) in removing the discoloration. Material and methods Color stability of a microhybrid (Z250, 3M ESPE) and nanocomposite (Z550, 3M ESPE) was evaluated after immersion in instant coffee, tea, Coca-Cola, and deionized water as a control group (n=5). Samples were kept in liquids for four hours daily at 37°C for 30 days. Furthermore, 16% CP was applied for the following 14 days, simulating night whitening. A digital spectrophotometer was used for color measurement based on the CIEL*a*b* color coordinates. The color changes (∆E) were measured at baseline, after immersion in the beverages, and also after the teeth whitening procedure. Mixed and factorial ANOVA followed by Bonferroni’s post-hoc test were used for statistical evaluation (p≤0.05). Results Tested resin composites showed a color change over the acceptability threshold (ΔE*> 3.48) after immersion in coffee and tea. Nanocomposite reported a significant increase in discoloration in coffee after 30 days (p <0.05). The color of both materials significantly changed (p<0.05) along all three L*a*b* axes in coffee and tea to darker, yellow, and red. Whitening with 16% CP was effective in removing external discoloration in both examined composite materials. Conclusion Coffee and tea induced clinically detectable color changes in dental composites tested, with cumulative effects. Whitening represents an efficient method for the removal of surface discoloration in composite restorations.

show abstract

Section: Introductionmentioning

confidence: 99%

Color Stability of Dental Composites after Immersion in Beverages and Performed Whitening Procedures

Korać¹,

Ajanović²,

Džanković³

et al. 2022

Acta Stomatol Croat

View full text Add to dashboard Cite

show abstract

“…Another study evaluating a different tooth wear index found a higher detection of initial surface changes using 3D scans than stone casts [ 39 ]. The available data on the precision and accuracy of intra-oral scanners indicate that they are precise enough to detect and monitor tooth wear [ 40 – 42 ]. In the present study, data from the 3D scans revealed more defects than intraoral photographs.…”

Section: Discussionmentioning

confidence: 99%

Deterioration of anterior resin composite restorations in moderate to severe tooth wear patients: 3-year results

Lima

Crins²,

Opdam³

et al. 2022

Clin Oral Invest

View full text Add to dashboard Cite

Objectives Deterioration in anterior resin composite restorations placed in tooth wear patients was investigated after 36 months. Materials and methods Data collected prospectively for 47 participants of the Radboud Tooth Wear Project were used (41 ± 8 years, 90% male, n = 270 restorations). Restorations were individually evaluated using intraoral photographs and 3D scans to rate modified FDI scores and to record the presence of degradation features. Four groups with distinct combinations of composites and techniques were assessed, and multivariable logistic regression models were used to analyze the data (p < 0.05). Results For all groups together, early degradation signs were present at 1 month: irregularities (41.5%) and ditching (7.4%) were observed at the surface and adhesive interfaces. The frequency of irregularities decreased in the 36-month evaluation (37%), but ditching (12.2%) and fractures (10.7%) were more common. The most frequent deterioration (based on photographs) was observed for staining (44%) and loss of luster (31%). In 3D scans, the most frequent were for wear (25%), marginal adaptation (24%), and the presence of irregularities (19%). Canines had 5.5 times more chances of deterioration by ditching than incisors (p < 0.001). The differences between composites and restorative techniques were minor. Conclusions A continuous degradation process of restorations placed in tooth wear patients was observed in anterior teeth restored with different composites, with a progression of the deterioration over 36 months. Clinical relevance When placing anterior resin composite restorations in tooth wear patients, it could be important to establish realistic expectations and the need for checkup appointments.

show abstract

“…In addition, the filler load of microhybrid composite has been recommended to exceed a minimum filler load of at least 60% of volume [12]. With varying filler load by volume seen in microhybrid composites, having higher filler content as well as lower resin content and filler size, produces desirable mechanical properties such as increased material strength [13,14].…”

Section: Fracture Resistancementioning

confidence: 99%

“…The long continuous fibers have a semi-interpenetrating polymer network (SIPN) structure, which clinically leads to superior bonding properties due to the polymer matrix's ability to dissolve partially in the bonding resin [27]. Short fiber-reinforced composite resin adds discontinuous short fiberglass between 0.3 and 1.9 mm in length that increases the resistance to the propagation of cracks and load bearing [14]. The properties of this material offer an exceptional way to replace the missing dentine structure by mimicking to some extent its structural properties [20].…”

Section: Fracture Resistancementioning

confidence: 99%

Biomimetic Approach in Tooth Conservation and Fracture Resistance: A Short Descriptive Review of Current Biomaterials and Techniques

2022

IJOH

View full text Add to dashboard Cite

Background: New concepts such as biomimetic dentistry, minimally invasive approach, and the understanding of tooth biomechanics have changed the paradigm on how teeth need to be restored. The emergence of new biomaterials has allowed to improve bonding capacity, as well as the ability to reduce loading stress transmitted to the remaining tooth structure, making it possible to extend the life of a restoration and give the compromised tooth a second chance. To date, several studies have demonstrated the fracture resistance under uniaxial loading of restored Class II mesial-occlusal-distal (MOD) dental cavities in posterior teeth using different restorative biomaterials; however, many of those materials have not yet been compared with each other regarding fracture resistance. Objectives: A literature review was undertaken to revise current research focusing on the fracture resistance of MOD cavity preparations restored with different filling techniques, including microhybrid and nanohybrid composite resin, short discontinuous fiberglass reinforced composite resin, long continuous polyethylene fiber, fiberglass reinforced net, and the combination of these materials. Conclusion: This literature review offers information regarding currently used restorative biomaterials’ fracture resistance in restored MOD teeth. Most studies were conducted in vitro, demonstrating that fracture resistance under uniaxial load was higher in MOD cavity preparations restored with a combination of polyethylene fibers and composite resin (nanohybrid), followed by a combination of fiberglass and composite resin (nanohybrid). The reviewed information also revealed that the use of composite resin as a single material has the lowest fracture resistance and the highest percentage of catastrophic failures. Given the limited information regarding the combination of these biomaterials in a clinical setting it is suggested to perform controlled clinical trials by using the proposed combinations to demonstrate their clinical relevance and success ratio. Nonetheless, initial data suggests that a biomimetic restorative approach using biomaterials that connect and replace the missing tooth structure and redistribute biologically the loading stress may have a positive impact in terms of tooth preservation in MOD cavities.

show abstract

Wear behavior of a microhybrid composite vs. a nanocomposite in the treatment of severe tooth wear patients: A 5-year clinical study

Cited by 20 publications

References 25 publications

Color Stability of Dental Composites after Immersion in Beverages and Performed Whitening Procedures

Color Stability of Dental Composites after Immersion in Beverages and Performed Whitening Procedures

Deterioration of anterior resin composite restorations in moderate to severe tooth wear patients: 3-year results

Biomimetic Approach in Tooth Conservation and Fracture Resistance: A Short Descriptive Review of Current Biomaterials and Techniques

Contact Info

Product

Resources

About