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Comparative Evaluation of Surface Roughness of Resin- Modified Glass Ionomer and Glass Hybrid Restorative Materials Simulated by Tooth Brushing: An in-Vitro Study
Komandla, Divya Rao; Acharya, Shashi Rashmi; Pentapati, Kalyana Chakravarthy.
  • Komandla, Divya Rao; Manipal Academy of Higher Education. Manipal College of Dental Sciences. Department of Conservative Dentistry and Endodontics. Manipal. IN
  • Acharya, Shashi Rashmi; Manipal Academy of Higher Education. Manipal College of Dental Sciences. Department of Conservative Dentistry and Endodontics. Manipal. IN
  • Pentapati, Kalyana Chakravarthy; Manipal Academy of Higher Education. Manipal College of Dental Sciences. Department of Public Health Dentistry. Manipal. IN
Article in English | LILACS, BBO | ID: biblio-1351218
ABSTRACT
ABSTRACT

Objective:

Tocompare the effect of tooth brushing on surface roughness of Resin-Modified Glass Ionomer Cement (RMGIC; GC Gold label 2LC Light Cured Universal Restorative) and Glass Hybrid (GH; GC EQUIA SYSTEM- EQUIA Forte™ Fil and EQUIA Forte™ Coat) restorative material at 1- and 3-months interval simulated by tooth brushing. Material and

Methods:

RMGIC and GH material specimens (20 each) were prepared according to manufacturer instructions in 10mm × 2 mm dimensions using a mylar strip. A specially designed toothbrush simulator was used along with Oral B Pro 2 2000N powered toothbrush and Colgate Total dentifrice (Colgate-Palmolive India limited; Relative dentin abrasivity - RDA70- Low abrasive) to perform brushing strokes. Specimens were subjected to surface roughness analysis before and after simulated tooth brushing at baseline, 1, and 3 months.

Results:

The intragroup comparison was done using repeated-measures ANOVA. Intergroup comparisons were done using an independent sample t-test and General Linear Model (ANCOVA). Surface roughness increased from baseline through 3 months in both RMGIC and GH groups. The mean surface roughness in RMGIC group was significantly higher than GH group at baseline 1 and 3-months, respectively (p<0.001, <0.001, and <0.001). Interaction between group and baseline surface roughness was not significant (p=0.466). The estimated marginal means were significantly higher in RMGIC than GH group (p=0.008).

Conclusion:

The surface roughness of both RMGIC and GH restorative increased from baseline to 1 month and 3 months after the simulated toothbrushing protocol. GH exhibited significantly lower surface roughness than RMGIC at all the tested intervals.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Surface Properties / Toothbrushing / Microscopy, Atomic Force / Dental Materials / Glass Ionomer Cements Type of study: Evaluation studies Country/Region as subject: Asia Language: English Journal: Pesqui. bras. odontopediatria clín. integr Journal subject: Dentistry Year: 2021 Type: Article Affiliation country: India Institution/Affiliation country: Manipal Academy of Higher Education/IN

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Full text: Available Index: LILACS (Americas) Main subject: Surface Properties / Toothbrushing / Microscopy, Atomic Force / Dental Materials / Glass Ionomer Cements Type of study: Evaluation studies Country/Region as subject: Asia Language: English Journal: Pesqui. bras. odontopediatria clín. integr Journal subject: Dentistry Year: 2021 Type: Article Affiliation country: India Institution/Affiliation country: Manipal Academy of Higher Education/IN