Qualitative and quantitative evaluation of enamel after various stripping methods.
BACKGROUND
In this study, we investigated ultramorphology, surface roughness, and microhardness of permanent and deciduous tooth enamel after various stripping methods.


METHODS
One hundred twenty deciduous and permanent teeth (n = 60 each) were used. Qualitative (scanning electron microscopy) and quantitative (surface roughness and microhardness tests) experiments were carried out in the following experimental groups: group 1, stripping disk; group 2, diamond-coated metal strip; group 3, stripping disk and Sof-Lex discs (3M-ESPE, Seefeld, Germany); group 4, diamond-coated metal strip and Sof-Lex discs; group 5 (chemical stripping), 37% orthophosphoric acid in conjunction with diamond-coated metal strip; group 6 (control), no stripping. Surface roughness values (Ra) for permanent and deciduous enamel were evaluated with Welch analysis of variance (ANOVA) and Tamhane tests, and Kruskal-Wallis and Mann-Whitney tests, respectively. Microhardness values were evaluated statistically with Kruskal-Wallis, 1-way ANOVA, and Duncan tests.


RESULTS
Deciduous and permanent teeth showed similar results in terms of surface roughness and surface morphology. Groups 3 and 4 had the smoothest deciduous and permanent enamel surfaces, whereas chemical stripping (group 5) produced the roughest surfaces in both enamel types. Stripping did not lead to a significant change in the microhardness of permanent enamel.


CONCLUSIONS
All stripping methods significantly roughened the enamel surfaces. Polishing the stripped surface with Sof-Lex discs decreased the roughness.
Arman
Ayca
A
Department of Orthodontics, Faculty of Dentistry, Baskent University, Ankara, Turkey.
Cehreli
S Burcak
SB
Ozel
Emre
E
Arhun
Neslihan
N
Cetinşahin
Alev
A
Soyman
Mubin
M
D000704:Analysis of Variance; D003743:Dental Enamel / Q000187:drug effects / Q000601:surgery* / Q000648:ultrastructure*; D019229:Dentition, Permanent; D006244:Hardness; D006801:Humans; D008855:Microscopy, Electron, Scanning; D019647:Oral Surgical Procedures / Q000295:instrumentation / Q000379:methods; D010756:Phosphoric Acids / Q000494:pharmacology; D018709:Statistics, Nonparametric; D013499:Surface Properties; D014094:Tooth, Deciduous
D010756:Phosphoric Acids; C030242:phosphoric acid