The effect of dentifrice abrasion on denture topography and the subsequent retention of microorganisms on abraded surfaces

Verran, Joanna; Jackson, Sarah; Coulthwaite, Lisa; Scallan, Anthony; Loewy, Zvi G.; Whitehead, Kathryn A.

doi:10.1016/j.prosdent.2014.05.009

Cited by 50 publications

(49 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the other hand, an increased roughness may foster biofilm adhesion in vivo. Surface roughness, amongst other factors like material properties, is a known contributor to oral biofilm adhesion 26,27) . Hence the absence of a significant difference in cell growth may be due to two counter-acting effects.…”

Section: Discussionmentioning

confidence: 99%

CAD/CAM milled complete removable dental prostheses: An <i>in vitro</i> evaluation of biocompatibility, mechanical properties, and surface roughness

Srinivasan

Gjengedal

Cattani-Lorente

et al. 2018

Dental Materials Journal

112

124

View full text Add to dashboard Cite

This study compared the biocompatibility, mechanical properties, and surface roughness of a pre-polymerized polymethyl methacrylate (PMMA) resin for CAD/CAM complete removable dental prostheses (CRDPs) and a traditional heat-polymerized PMMA resin. Two groups of resin substrates [Control (RC): conventional PMMA; Test (RA): CAD/CAM PMMA] were fabricated. Human primary osteoblasts and mouse embryonic-fibroblasts were cultured for biocompatibility assays. Mechanical properties and surface roughness were compared. ANOVA revealed no difference between the resin groups in the biocompatibility assays. RA demonstrated a higher elastic modulus (p=0.002), young's modulus (p=0.002), plastic energy (p=0.002), ultimate strength (p=0.0004), yield point (p=0.016), strain at yield point (p=0.037), and toughness (p<0.0001); while RC displayed a higher elastic energy (p<0.0001). Laser profilometry concluded a rougher surface profile (p<0.0001) for RA. This study concluded that the tested CAD/CAM resin was equally biocompatible and presented with improved mechanical properties than the traditional heat-polymerized PMMA resin used in the fabrication of CRDPs.

show abstract

Section: Discussionmentioning

confidence: 99%

CAD/CAM milled complete removable dental prostheses: An <i>in vitro</i> evaluation of biocompatibility, mechanical properties, and surface roughness

Srinivasan

Gjengedal

Cattani-Lorente

et al. 2018

Dental Materials Journal

112

124

View full text Add to dashboard Cite

show abstract

“…Aspirated denture plaque has been shown to cause pneumonia and can therefore be a severe health threat for patients with decreased immunity . Among the many possible physical and chemical surface properties influencing microbial attachment to surfaces, surface roughness, hydrophilicity and free surface energy seem to be most relevant. Rough and hydrophobic surfaces, as well as surfaces with a high amount of free surface energy, promote strong microbial attachment and therefore increase the expenditure necessary for biofilm removal .…”

Section: Introductionmentioning

confidence: 99%

Influence of CAD/CAM fabrication on denture surface properties

Steinmaßl

Dumfahrt

Grunert

et al. 2018

J of Oral Rehabilitation

View full text Add to dashboard Cite

Three main properties are responsible for the microbial attractiveness of denture surfaces: roughness, hydrophilicity and free surface energy. This study investigated whether CAD/CAM-fabricated dentures are more favourable for these surface properties than conventionally fabricated dentures. The mucosal surface roughness of 54 standardised study dentures was measured using contact profilometry. The surface hydrophilicity and free surface energy of 70 standardised denture resin specimens were determined by contact angle measurements. Both experimental settings compared AvaDent (AD), Baltic Denture System (BDS), Vita VIONIC (VV), Whole You Nexteeth (WN) and Wieland Digital Dentures (WDD) surfaces with conventionally manufactured denture surfaces (control group). These data were analysed using ANOVA together with Tukey's test or the Games-Howell post hoc test. All CAD/CAM dentures had lower mean surface roughness values than conventional dentures. For AD, VV, WN and WDD, the differences were statistically significant. Vita VIONIC (P < .001), coated WN (P < .001), AD (P = .023) and BDS specimens (P = .027) were significantly more hydrophilic than the control group. All measured surface energies were of similar magnitude (mean values between 31.82 and 33.68 mJ/m ), and only coated WN specimens had a significantly increased mean value (66.62 mJ/m , P < .001). Although most CAD/CAM dentures have smoother and more hydrophilic surfaces than conventional dentures, there is no difference in their free surface energy, except for coated dentures.

show abstract

“…In this way, the polished surfaces present highest roughness values than the threshold of 0.2 µm necessary for adhesion and retention of biofilm [22]. In agreement, the aforementioned study showed that the roughness caused by tooth brushing ranged from 3.4 to 7.6 µm, and it was also demonstrated that this denture base surface condition could be a tendency for biofilm accumulation [23].…”

Section: Discussionmentioning

confidence: 57%

Effect of Different Simulated Microwave Disinfection Cycles on Hardness, Roughness and Gloss of Acrylic Resins

Capla¹,

Rlx²

2017

IJDOS

View full text Add to dashboard Cite

The effect of dentifrice abrasion on denture topography and the subsequent retention of microorganisms on abraded surfaces

Abstract: Analysis of findings reveal that even small abrasions may enhance retention on denture surfaces and reduce surface cleanability. The strength of attachment instead of the amount is more important in terms of surface hygiene.

Cited by 50 publications

References 27 publications

CAD/CAM milled complete removable dental prostheses: An <i>in vitro</i> evaluation of biocompatibility, mechanical properties, and surface roughness

CAD/CAM milled complete removable dental prostheses: An <i>in vitro</i> evaluation of biocompatibility, mechanical properties, and surface roughness

Influence of CAD/CAM fabrication on denture surface properties

Effect of Different Simulated Microwave Disinfection Cycles on Hardness, Roughness and Gloss of Acrylic Resins

Contact Info

Product

Resources

About