Renata Chałas

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Alagille syndrome is a rare, autosomal, complex, dominant disorder associated with dysfunction of the liver, heart, skeleton, and eyes, as well as characteristic facial appearance. It is associated with the defect in component of the Notch signalling pathway. Here, we review the main features of Alagille syndrome with special focus on oro-facial(More)
OBJECTIVE The aim of the study was to compare under in vitro conditions marginal sealing of 4 different bulk-fill materials composite restorations of class II. METHODS Comparative evaluation concerned 4 composites of a bulk-fill type: SonicFill, Tetric EvoCeram Bulk Fill, Filtek Bulk Fill, and SDR. The study used 30 third molars without caries. In each(More)
Liquid epoxide resins, solvents and solvent-modified epoxide resins, as well as hardeners for epoxide resins, appear to be skin and mucosa irritants of different intensity and possibly have allergenic properties. Therefore, it is required that the employees are qualified and industrial safety rules are followed when these substances are in use in the(More)
Bacteria living constantly in the oral cavity are in the form of a biofilm. The biofilm formed on a solid base such as the enamel of the teeth, fillings, restorations, orthodontic appliances or obturators is dental plaque. Disturbance of homeostasis of biofilm, excessive growth or increase in the number of acid-forming bacteria leads to the development of(More)
BACKGROUND Diastema is a space between teeth. The most often is maxillary midline diastema between upper central incisors. One of the main causes of diastema is enlarged upper lip frenulum attachment. The aim of the study was to assess frenulum attachment in patients with diastema and investigate if type of upper lip frenulum attachment has an impact on the(More)
The dynamic development of knowledge in the field of probiotics was commenced at the beginning of the 20th century. Since then, many ways of their possible usage in medicine have been established. In accordance with the WHO, probiotics are live microorganisms, which if applied in adequate amounts may benefit the host. Among probiotics, fungi and bacteria(More)
Growth hormone (GH) is a polypeptide hormone produced by the cells of pituitary. Production of growth hormone is carried out in a pulsating manner, and the frequency and intensity of the pulses is dependent on age and gender. Growth hormone deficiency (GHD) is characterized by, among others, slow growth process often from early childhood, delayed bone age.(More)
Introduction. Growth hormone deficiency (GHD) is one of the main indications for growth hormone therapy. One characteristic of this disease is bone age delay in relation to the chronological age. Pituitary dysfunction negatively affects the growth and development of the jaws and teeth of the child. The secretion of endocrine glands regulates growth,(More)
BACKGROUND The one of the most recent imaging technology is X-ray microtomography which allows non-invasive three-dimensional visualisation of structures. It also offers the opportunity to conduct a comprehensive quantitative analysis of the tested objects such as measuring the shares of the various phases, determining the material density and distribution(More)
BACKGROUND The aim of this study was to assess the size of upper incisors and canines in patients with gaps in the upper dental arch, especially medium gap between upper central incisors. MATERIALS AND METHODS Diagnostic orthodontic models of 30 adult patients with full permanent dentition with diastema in the upper arch were studied. Patients with severe(More)