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Introduction. One of the most important objectives of an oral health care is helping patients in the effort to reach a high level of satisfaction with their mouth cavity with or without teeth. Patients and Methods. The paper aims to establish the connection between the satisfaction of patients treated with fixed and mobile dentures on one side, and oral health, quality of life and psychological characteristics of patients on the other. The research was conducted as a prospective study with 320 patients separated into three groups - group I (patients treated with fixed dentures), group II (patients treated with mobile dentures), and group III (patients treated with both mobile and fixed dentures). The oral related life quality was observed within five dimensions: anamneses data, symptoms of ill-functioning of stomatogenic system (chewing and speech), dental status - extraoral, dental status - intraoral and dental abilities. Conclusion. The linear regression model was adopted for the purpose of analysis of target markers and oral health determination. The research showed that oral-related quality of life in patients treated with fixed and mobile dentures was most affected by intraoral clinical features, psychological characteristics, and the type of denture, along with a whole range of minor factors (age, timing of denture treatment after the teeth loss, period of denture usage, order of denture implantation, mouth cavity hygiene, diet).

The quality of life for patients treated with immediate total dentures can be greatly improved, regardless of age. Modern achievements within the fields of medicine and stomatology do not cover the numerous contraindications when it comes to prosthetic recovery as a result of total immediate dentures.

This paper examines permanent teeth hardness (microhardness) using the Vickers method. An original methodology was developed and adopted for preparing the experimental material, i.e. the cross sections into four characteristic locations on the tooth: corona dentis, cervix dentis, pars medialis radicis dentis and apex radicis dentis. A new 'hardness profile' was introduced, which connects hardness and location along the cross section of the tooth. Hardness was measured 664 times on experimental cross sections with total a average hardness of 73.17 HV according to Vickers and a standard deviation of 55.68 HV. The derived descriptive statistical indicators of tooth hardness were calculated for equivalent cross sections, individual teeth, teeth groups and tooth localizations. Two algorithms were developed for determining the rank of tooth hardness - one for estimating the rank of arithmetic mean of the hardness of the cross sections of the teeth, and the other for estimating the rank of hardness for individual teeth. .