Effect of Surface Roughness and Materials Composition

Abstract

In the mouth, biofilm formation occurs on all soft and hard surfaces. Microbial colonization on such surfaces is always preceded by the formation of a pellicle. The physicochemical surface properties of a pellicle are largely dependent on the physical and chemical nature of the underlying surface. Thus, the surface structure and composition of the underlying surface will influence on the initial bacterial adhesion. The aim of this review is to evaluate the influence of the surface roughness and the restorative material composition on the adhesion process of oral bacteria. Both in vitro and in vivo studies underline the importance of both variables in dental plaque formation. Rough surfaces will promote plaque formation and maturation. Candida species are found on acrylic dentures, but dentures coating and soaking of dentures in disinfectant solutions may be an effective method to prevent biofilm formation. Biofilms on gold and amalgam are thick, but with low viability. Glass-ionomer cement collects a thin biofilm with a low viability. Biofilms on composites cause surface deterioration, which enhances biofilm formation. Biofilms on ceramics are thin and highly viable

Effect of Polishing Procedure on the Roughness and Bacterial Adhesion of Provisional Restorative Materials

“…The oral cavity is constantly contaminated by a complex diversity of microbial species with a strong tendency to colonize surfaces [11] [12], with the adhesion of said organisms to the rough surfaces of the mouth facilitating their survival…”

Feldspati̇k Ve Li̇tyum Di̇si̇li̇kat Cam Porselenleri̇n Yüzey Pürüzlülüğü Üzeri̇nde Farkli Yüzey İşlemleri̇ni̇n Etki̇si̇ni̇n İncelenmesi̇

“…16 Ağız ortamı sürekli kompleks ve farklı mikrobial türlerin kolonize olmasıyla kontamine olmaktadır. 18 Porselenlerin pürüzlü yüzeyleri, mikroorganizmaların adezyon ve retansiyonları açısından elverişli yapılardır. Eğer pürüzlü yapılar subgigival bölgede ise mikroorganizmaların retansiyonu daha hızlı olur ve sonuçta oluşan plak formları periodontitis için uygun zemin oluşturur.…”

CHAPTER 13. Bacterial Adhesion and Interaction with Biomaterial Surfaces

“…[94][95][96] Surface material composition determines physico-and chemical properties, and moderates the bacterial adhesion. On a series of gold film surfaces with self-assembled monolayers (SAMs) formed, adhesion of S. aureus was found to be lowest on the ethylene oxide-bearing surfaces, followed by the hydroxyl surfaces, while adhesion on the carboxylic-and methyl-terminated SAMs was much higher.…”