Minimal alterations on the enamel surface by micro-abrasion: in vitro roughness and wear assessments
J. appl. oral sci
; J. appl. oral sci;21(2): 112-117, Mar-Apr/2013. tab, graf
Article
ي En
| LILACS
| ID: lil-674367
المكتبة المسؤولة:
BR1.1
ABSTRACT
ABSTRACT Objective:
To evaluate the in vitro changes on the enamel surface after a micro-abrasion treatment promoted by different products. Material andMethods:
Fifty (50) fragments of bovine enamel (15 mm × 5 mm) were randomly assigned to five groups (n=10) according to the product utilized G1 (control)= silicone polisher (TDV), G2= 37% phosphoric acid (3M/ESPE) + pumice stone (SS White), G3= Micropol (DMC Equipment), G4= Opalustre (Ultradent) and G5= Whiteness RM (FGM Dental Products). Roughness and wear were the responsible variables used to analyze these surfaces in four stages baseline, 60 s and 120 s after the micro-abrasion and after polishing, using a Hommel Tester T1000 device. After the tests, a normal distribution of data was verified, with repeated ANOVA analyses (p≤0.05) which were used to compare each product in different stages. One-way ANOVA and Tukey tests were applied for individual comparisons between the products in each stage (p≤0.05).Results:
Means and standard deviations of roughness and wear (µm) after all the promoted stages were G1=7.26(1.81)/13.16(2.67), G2=2.02(0.62)/37.44(3.33), G3=1.81(0.91)/34.93(6.92), G4=1.92(0.29)/38.42(0.65) and G5=1.98(0.53)/33.45(2.66). At 60 seconds, all products tended to produce less surface roughness with a variable gradual decrease over time. After polishing, there were no statistically significant differences between the groups, except for G1. Independent of the product utilized, the enamel wear occurred after the micro-abrasion.Conclusions:
In this in vitro study, enamel micro-abrasion presented itself as a conservative approach, regardless of the type of the paste compound utilized. These products promoted minor roughness alterations and minimal wear. The use of phosphoric acid and pumice stone showed similar results to commercial products for the micro-abrasion with regard to the surface roughness and wear. .Key words
النص الكامل:
1
الفهرس:
LILACS
الموضوع الرئيسي:
Enamel Microabrasion
/
Dental Enamel
/
Tooth Wear
نوع الدراسة:
Evaluation_studies
المحددات:
Animals
اللغة:
En
مجلة:
J. appl. oral sci
موضوع المجلة:
ODONTOLOGIA
السنة:
2013
نوع:
Article