Elimination of low-quality ceramic posts by proof testing.

Objectives: Prosthetic posts made of zirconia ceramics are beneficial because of their esthetic advantages. The mechanical reliability of ceramic posts is limited because of the strength level and the large scatter in strength of ceramic materials. The hypothesis of this study is that the failure of ceramic posts in vivo, which occur on low-quality posts because of critical microscopic defects can be excluded using the so-called proof test technology.

R-curve behavior of dental ceramic materials.

Some technical ceramics exhibit the R-curve effect, i.e., an increasing fracture resistance with crack extension which is a desirable material property because more energy is necessary to propagate a microscopic crack.

[Sexuality in the aged--problems and results].

The study deals with historical, theoretical and practical aspects of sexuality at advanced age, including the effects of pathological disturbances and vocational stress, reference also being made to the international literature on the subject. Questions of sexuality at advanced age were not investigated until fairly recently. The author considers this to be due mainly to social and ideological barriers and recommends that gerosexual knowledge be propagated.

[Health and sexual behavior of employed women in the menopause phase].

87 women of a random sample test comprising 110 probands aged between 40 and 60 years, were interviewed by way of a semistandardized questionnaire as well as examined both clinically and gynaecologically. The value of sexuality for ageing women as well as the relation of sexuality and health had to be analyzed. Bad state of health, menopause and higher age result in decreasing libido and declining interest in renewed partner ship relations.

[Partnership and sexuality in the latter half of life. The partnership situation and sexual behavior of the working woman in the change of life].

The problem of partnership and sexuality is of great importance also in the second half of life. It is necessary for the consultation centres on marriage and sexuality to take these facts into account, both with respect to organisation and content.

[Living condition of aging working women in family, marriage, and profession (author's transl)].

Our research has elucidated the important role of family life and intimate sphere for the way of living of women in the conversion phase (40-60 years). It is shown that negative factors lie in too hard housework, in deficiency of help by husband, in familiar conflicts and conflicts of married life, and in unfavourable conditions of employment. The necessity of integrating gerosexualhygiene in measures for preparing for an active and harmonious old age was deduced from our results.