Ultrastructure of gingival sulcus mucosa after application of hybrid heliocomposites

Abstract

Hybrid heliocomposites were used for repair of the carious tooth crown. Ultrastructural study of mucosa biopsy specimens from sites adjacent to the filling 3 weeks after treatment showed that Charisma, Herculite, and Esterfil Ca filling materials led to degenerative changes in the mucosa, while Filtek Z-250 heliocomposite caused no pathological changes in the gingiva at the site of contact.

Ultrastructure of Gingival Epithelium in Chronic Gingivitis

“…In these layers, we often observed considerable intercellular edema (spongiosis) accompanied by expansion of intercellular spaces, loss of intercellular bridges with formation of vesicles and gaps between the cells (acantholysis), which can be regarded here as a manifestation of dyskeratosis, that is, impaired synthesis of keratohyalin and desmosome proteins. These structural changes of oral mucosa described in various pathologies and after using different fi lling materials [7,9] can be due to leakage of the transudate from the papillary layer into the basal and prickle cell layers of the epithelium.…”

Morphological and immunological analysis of the oral mucosa in tobacco smoking and odontopreparation

“…These changes were most pronounced after OP. These structural transformations of the oral mucosa were described for different pathological processes and for different filling materials [7,12] and can result from penetration of transudation from the papillary layer into the epidermal basal and pricky layers. An appreciable dilatation of the extracellular spaces in the epidermal layer can be also due to suppression of regeneratory plastic processes in epitheliocytes, impaired biosynthesis of many important structural and functional proteins, for example, desmosome components.…”

Structural reactions of the buccal mucosa in diabetic parodontopathy

“…L. M. Nepomnyashchikh Diabetes mellitus and peptic ulcer occupy a special place among the diseases which have a direct impact on the periodontal status [2,7]. Diabetes mellitus in the majority of cases is associated with chronic generalized periodontitis with frequent exacerbations and short remissions; in addition, the periodontium is often damaged under the effect of various unfavorable factors [1,8,9,11,12]. The main manifestations of diabetes are hyperglycemia and the resultant vascular disorders [10,15], leading to the development of severe ischemia of various organs [5,14].…”