Biomedical subjects

Anna Kierklo

Publications and source records attributed to Anna Kierklo.

3 recordsLinked to original sources

PubMed2006

[Achievement of endodontics at the edge of the century].

Endodontics is the branch of dentistry which deals with dental pulp pathology and treatment of root canals. There has been noted a significant improvement in this discipline recently, which has made a substantial increase in therapeutical efficiency and made dentists' work easier. It was possible due to dynamic development of new material technologies and clinical procedures. Aim of this paper was to present the current state of knowledge in endodontics. The most important achievements were especially stressed. Among the most important for development of present endodontics there are: new methods of canal length estimation, modem methods of visualization, nickel titanium rotary instrumentation, numerous gutta-percha obturation systems and also more biocompatible obturation materials.

Dental Instruments↗

PubMed2002

The influence of cervical lesion on the stress state and strength of tooth with occlusal restoration: a numerical model study.

This paper is concerned with bio-engineering problems in dentistry. The analysis of stress in a lower premolar with a deep non-carious cervical lesion and restored occlusal Class I cavity under occlusal load of 100 N was shown. Finite element method was used for the analysis of a two-dimensional model of a human tooth. In order to facilitate the evaluation of the loads, four cross-sections in characteristical points of the model were made. The model was generated and the calculations were done on IBM Pentium III personal computer. The principal and equivalent stresses were calculated and used in qualitative and quantative evaluation of tooth tissue and tooth restoration strength. The results are shown in figures and charts. The analysis of the cross-sections distant to the cervical area has proved that the presence or absence of cervical lesion has no significant influence on the values and stress distribution. Only in the region of sharp-shaped notch in the bottom of defect (4-4) high stresses in the tooth tissues occur. The values of stress did not exceed the compressive and tensile strength in any case under investigation. The study has shown that the presence of cervical angular lesion does not affect the mechanical strength of a tooth with a properly restored occlusal cavity. Clinically, the situation is safe from the biomechanical point of view.

Biomechanical Phenomena↗

PubMed2002

[Paracervical non-caries defects].

The aim of the study was the description of origin and treatment of paracervical, non-caries defects. Dental plaque is involved in the formation of caries defects, while those of non-caries origin are produced due to the action of mechanical and chemical factors. The treatment consists in wide fluoride prophylaxis (elimination of causes) and in the application of mineralization procedures and restoration of missing dental tissue using modern dental highly-adhesive materials. At the same time occlusion disorders and parafunctions are eliminated.

Dental Prophylaxis↗