Micro-CT analysis of molar teeth restored by combining conventional and glass fibre reinforced composites
Journal Title: Engineering of Biomaterials / Inżynieria Biomateriałów - Year 2016, Vol 19, Issue 137
Abstract
The loss of mineralized tissues of the tooth as a result of pathogenic processes and treatment is the principal factor leading to tooth weakening. Most frequently, the cracks occur on the filling surface as a result of repeatable cycles of bites. They propagate in the tooth and the filling. The cracks belong to the reasons of filling's replacement and consequently affecting filling's durability. Recently, composite materials are most frequently selected by the dentists and patients as reconstruction materials. There are many ways of increasing mechanical resistance of dental composites e.g. their location in the form of facing on metal structures or introduction of various fibres made of glass, carbon, aramid or polyethy-lene. EverX Posterior is manufactured by GC in the form of composite reinforced with short glass fibres. The properties of this material are similar to the properties of dentine. Therefore it is used for cavity filling in side teeth as the first layer of dentine reconstruction. Advanced non-destructive structures imaging technique by means of computer tomography (CT) is an excellent tool used for materials quality analysis. So the micro-CT analysis of quality and joining of restorative materials based on different filler was presented in this paper. Third molars without caries, extracted due to orthodontic reasons, have been used in the test. Composite biomaterial reinforced with glass fibre - everX Posterior by GC – was applied in the form of single layer and next Filtek Z250, 3M ESPE conventional composite was applied in the form of layer with a thickness of 2-3 mm. Analysed structure of the tooth and composite materials confirms the high quality of the restoration. The filling received by layer technique is free of porosities, thus suggesting the lack of micro-leakages between the filling and tooth tissues. Moreover, the interface between the fibre reinforced and particle reinforced nanocomposite biomaterials seems to be ideal.
Authors and Affiliations
B. Surowska, M. Ostapiuk
Keywords
Related Articles
- EP ID EP559772
- DOI -
- Views 30
- Downloads 0
Badanie działania antybakteryjnego kompozytów na bazie poli(L-laktydu) przeznaczonych na biodegradowalne gwoździe śródszpikowe
Implantacja gwoździ śródszpikowych wiąże się z ryzykiem wystąpienia poważnej infekcji kości spowodowanej zakażeniem bakteryjnym. Tradycyjna antybiotykoterapia w tym przypadku ma wiele ograniczeń. Rozwiązaniem tego proble...
The effect of titanium dioxide addition on physical and biological properties of Na2O-B2O3-P2O5 and CaO-Na2O-P2O5 glasses
Two types of phosphate glasses 50Na2O-20B2O3-30P2O5 (NBP) and 30CaO-20Na2O-50P2O5 (CNP) with different content of TiO2 (0, 3 and 5 mol%) have been prepared by melt-quenching process. TiO2 was added to increase glass netw...
Influence of the multiple sterilization process on the biomaterial properties
Due to their favorable properties, numerous metallic materials, including titanium alloys are chosen for biomedical applications. A final preparation step before the implantation of a metallic biomaterial is sterilizatio...
Plasma oxidized Ti6Al4V and Ti6Al7Nb alloys for biomedical applications
Titanium and its alloys are one of the most popular metallic materials used in medicine for many years. Their favorable mechanical properties, high corrosion resistance and good biotolerance in an environment of tissues...
Surface functionalization of poly(L-lactide-co-glycolide) membranes with amphiphilic poly(2-oxazoline) for guided tissue regeneration and treatment of bone tissue defects
The main challenge of this research was to functionalize the surface of poly(L-lactide-co-glycolide) (PLGA) membranes with amphiphilic poly(2-oxazoline) (POx) in order to change PLGA chemical state and properties. Poly(2...