Degradation of a hybrid layer – review of literature
Journal Title: Journal of Stomatology (Czasopismo Stomatologiczne) - Year 2017, Vol 70, Issue 1
Abstract
Introduction. The basic premise of adhesive dentistry is to achieve the reliable chemical bond between dental hard tissues and restorative composite material. The hybrid layer is one of the key elements of this interface. Unfortunately, over time the hybrid layer wears out under the influence of physical and chemical factors. As a consequence of this process, marginal leakage forms along the restoration interface, together with marginal discolorations, and even the loss of filling retention. Two following models of hybrid layer degradation were described: disorganization of collagen fibres and hydrolysis (loss) of the resin from the inter-fibrillar spaces within the hybrid layer. Degradation of the collagen matrix requires the coexistence of demineralization and activation of endogenous enzymes present in the dentine. Metalloproteinase of the dentine matrix can be activated by caries or by the application of certain types of bonding systems. Aim of the study. To review up-to-date research results on factors affecting the hybrid layer degradation. Conclusions. Both the type of bonding system and the method of dentine surface treatment have a significant impact on the quality of the hybrid layer, and thus the durability of the resulting adhesive bond. A proper clinical protocol should be established in order to achieve the highest bond strength between the composite material and the dental hard tissue while minimizing degradation with time.
Authors and Affiliations
Monika Łukomska-Szymańska,, Jerzy Sokołowski, Barbara Łapińska
Keywords
Related Articles
- EP ID EP191852
- DOI -
- Views 86
- Downloads 0
Comparison of microbiological outcomes after using Vector ® ultrasonic system and conventional periodontal treatment of chronic periodontitis in adults. Pilot study and literature review
Introduction. Periodontitis is an infectious disease which is caused by opportunist bacteria appearing in the mouth. The presence of bacteria in combination with host genetics and other factors could lead to the loss of...
Próchnica wczesnego dzieciństwa w odniesieniu do spożywania słodkich pokarmów oraz zabiegów higienicznych zębów u dzieci w wieku żłobkowym.
Wstęp: Dokładne i regularne oczyszczanie jamy ustnej, połączone z przeciwpróchnicowym schematem karmienia, jest istotne w zmniejszaniu ryzyka rozwoju próchnicy wczesnego dzieciństwa. Cel pracy: Celem pracy było dokonani...
One-visit apexification using highly biocompatibile materials – review of literature
Despite the development of new methods of diagnosis and treatment of dental caries, many immature permanent teeth require root canal treatment. Permanent teeth with open apices are often treated due to trauma that may le...
Clinical implications of the use of ceramic restorations in 36 months of observation
Introduction. Zirconium-based ceramic restorations have very good aesthetics, biocompatibility and mechanical strength. Despite many advantages, there are also disadvantages, which include: incidents of porcelain chippin...
Survey-based evaluation of oral hygiene habits among students of several Cracow universities – part I
Introduction. Oral health status is integrally related to the overall body health as well as general well being. Parents should implement proper hygienic habits from the earliest age to be continued over a lifetime. Asse...