EFFECT OF SURFACE TREATMENT ON ENAMEL SURFACE ROUGHNESS

Autor: Şeyda Erşahan, Fidan Alakuş Sabuncuoğlu
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Journal of Istanbul University Faculty of Dentistry, Vol 50, Iss 1, Pp 1-8 (2016)
Druh dokumentu: article
ISSN: 2149-2352
2149-4592
DOI: 10.17096/jiufd.02142
Popis: Purpose: To compare the effects of different methods of surface treatment on enamel roughness. Materials and Methods: Ninety human maxillary first premolars were randomly divided into three groups (n=30) according to type of enamel surface treatment: I, acid etching; II, Er:YAG laser; III, Nd:YAG laser. The surface roughness of enamel was measured with a noncontact optical profilometer. For each enamel sample, two readings were taken across the sample—before enamel surface treatment (T1) and after enamel surface treatment (T2). The roughness parameter analyzed was the average roughness (Ra). Statistical analysis was performed using a Paired sample t test and the post-hoc Mann- Whitney U test, with the significance level set at 0.05. Results: The highest Ra (average roughness) values were observed for Group II, with a significant difference with Groups I and III (P
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