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Surface Roughness of Composite Resins after Simulated Toothbrushing with Different Dentifrices.

Monteiro B, Spohr AM - J Int Oral Health (2015)

Bottom Line: According to three-way analysis of variance, dentifrice (P = 0.044) and brushing time (P = 0.000) were significant.The composite resin was not significant (P = 0.381) and the interaction among the factors was not significant (P > 0.05).The dentifrice OBW caused a higher surface roughness in both composite resins.

View Article: PubMed Central - PubMed

Affiliation: Master Student, Department of Restorative Dentistry, School of Dentistry, Pontifical Catholic University of Rio Grande do Sul, Brazil.

ABSTRACT

Background: The aim of the study was to evaluate, in vitro, the surface roughness of two composite resins submitted to simulated toothbrushing with three different dentifrices.

Materials and methods: Totally, 36 samples of Z350XT and 36 samples of Empress Direct were built and randomly divided into three groups (n = 12) according to the dentifrice used (Oral-B Pro-Health Whitening [OBW], Colgate Sensitive Pro-Relief [CS], Colgate Total Clean Mint 12 [CT12]). The samples were submitted to 5,000, 10,000 or 20,000 cycles of simulated toothbrushing. After each simulated period, the surface roughness of the samples was measured using a roughness tester.

Results: According to three-way analysis of variance, dentifrice (P = 0.044) and brushing time (P = 0.000) were significant. The composite resin was not significant (P = 0.381) and the interaction among the factors was not significant (P > 0.05). The mean values of the surface roughness (µm) followed by the same letter represent no statistical difference by Tukey's post-hoc test (P <0.05): Dentifrice: CT12 = 0.269(a); CS Pro- Relief = 0.300(ab); OBW = 0.390(b). Brushing time: Baseline = 0,046ª; 5,000 cycles = 0.297(b); 10,000 cycles = 0.354(b); 20,000 cycles = 0.584(c).

Conclusion: Z350 XT and Empress Direct presented similar surface roughness after all cycles of simulated toothbrushing. The higher the brushing time, the higher the surface roughness of composite resins. The dentifrice OBW caused a higher surface roughness in both composite resins.

No MeSH data available.


Related in: MedlinePlus

(a-d) Surface morphology of composite resin Z350 XT after 5,000 cycles of simulated toothbrushing (×4,000) (a) 0 cycles; (b) abrasion with Colgate Total 12 Clean Mint; (c) abrasion with Colgate Sensitive Pro-Relief; (d) abrasion with Oral B Pro-Health Whitening.
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Figure 1: (a-d) Surface morphology of composite resin Z350 XT after 5,000 cycles of simulated toothbrushing (×4,000) (a) 0 cycles; (b) abrasion with Colgate Total 12 Clean Mint; (c) abrasion with Colgate Sensitive Pro-Relief; (d) abrasion with Oral B Pro-Health Whitening.

Mentions: The SEM images of Figure 1a-d correspond to the Z350 XT composite resin. There was substantial surface smoothness of the composite resin (Figure 1a) before toothbrushing. After 5,000 cycles of brushing, dentifrice OBW (Figure 1d) caused significant surface roughness of the composite resin compared to dentifrice CT12 (Figure 1b) and CS (Figure 1c).


Surface Roughness of Composite Resins after Simulated Toothbrushing with Different Dentifrices.

Monteiro B, Spohr AM - J Int Oral Health (2015)

(a-d) Surface morphology of composite resin Z350 XT after 5,000 cycles of simulated toothbrushing (×4,000) (a) 0 cycles; (b) abrasion with Colgate Total 12 Clean Mint; (c) abrasion with Colgate Sensitive Pro-Relief; (d) abrasion with Oral B Pro-Health Whitening.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4513759&req=5

Figure 1: (a-d) Surface morphology of composite resin Z350 XT after 5,000 cycles of simulated toothbrushing (×4,000) (a) 0 cycles; (b) abrasion with Colgate Total 12 Clean Mint; (c) abrasion with Colgate Sensitive Pro-Relief; (d) abrasion with Oral B Pro-Health Whitening.
Mentions: The SEM images of Figure 1a-d correspond to the Z350 XT composite resin. There was substantial surface smoothness of the composite resin (Figure 1a) before toothbrushing. After 5,000 cycles of brushing, dentifrice OBW (Figure 1d) caused significant surface roughness of the composite resin compared to dentifrice CT12 (Figure 1b) and CS (Figure 1c).

Bottom Line: According to three-way analysis of variance, dentifrice (P = 0.044) and brushing time (P = 0.000) were significant.The composite resin was not significant (P = 0.381) and the interaction among the factors was not significant (P > 0.05).The dentifrice OBW caused a higher surface roughness in both composite resins.

View Article: PubMed Central - PubMed

Affiliation: Master Student, Department of Restorative Dentistry, School of Dentistry, Pontifical Catholic University of Rio Grande do Sul, Brazil.

ABSTRACT

Background: The aim of the study was to evaluate, in vitro, the surface roughness of two composite resins submitted to simulated toothbrushing with three different dentifrices.

Materials and methods: Totally, 36 samples of Z350XT and 36 samples of Empress Direct were built and randomly divided into three groups (n = 12) according to the dentifrice used (Oral-B Pro-Health Whitening [OBW], Colgate Sensitive Pro-Relief [CS], Colgate Total Clean Mint 12 [CT12]). The samples were submitted to 5,000, 10,000 or 20,000 cycles of simulated toothbrushing. After each simulated period, the surface roughness of the samples was measured using a roughness tester.

Results: According to three-way analysis of variance, dentifrice (P = 0.044) and brushing time (P = 0.000) were significant. The composite resin was not significant (P = 0.381) and the interaction among the factors was not significant (P > 0.05). The mean values of the surface roughness (µm) followed by the same letter represent no statistical difference by Tukey's post-hoc test (P <0.05): Dentifrice: CT12 = 0.269(a); CS Pro- Relief = 0.300(ab); OBW = 0.390(b). Brushing time: Baseline = 0,046ª; 5,000 cycles = 0.297(b); 10,000 cycles = 0.354(b); 20,000 cycles = 0.584(c).

Conclusion: Z350 XT and Empress Direct presented similar surface roughness after all cycles of simulated toothbrushing. The higher the brushing time, the higher the surface roughness of composite resins. The dentifrice OBW caused a higher surface roughness in both composite resins.

No MeSH data available.


Related in: MedlinePlus