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[Problem of oral surgical interventions during pregnancy, menstruation and under the intake of hormonal contraceptives].
Pregnancy, menstruation and hormonal contraceptives are no contraindications for necessary oral surgical procedures. If the pregnancy takes a normal course, surgical interventions with absolute indication are possible at any time. Surgical interventions with relative indication should be performed during the second trimester of pregnancy. The dental treatment of pregnant women should be terminated, as far as possible, by the 7th or 8th month of pregnancy. Metabolic imbalances, static loading and gingival changes deserve special attention.
The re-epithelization of endometrium after menstrual desquamation.
MATERIALS: Human uteri were removed by vaginal hysterectomy on the first, second and sixth day of the menstrual cycle. METHOD: Washing, pinning, fixation in glutaraldehyde 2.5%, dehydration in ascending concentration of ethanol, critical point drying with carbon dioxide, sputter coating with gold. RESULTS: The re-epithelization of the endometrium starts immediatley after the onset of menstrual bleeding due to desquamation of the premenstrual endometrium. The remaining stumps of endometrial glands after the endometrial break-down, proliferate rapidly, forming marginal collars. Up to the sixth day the proliferative process has produced a continuous layer of fusiform cuboideal epithelial cells, which cover the entire endometrial surface of the uterine cavity. The dynamics of epithelial growth can be "seen" in following three subsequent stages of the process and in analyzing the arrangement of the cells around the openings of the endometrial glands. Accordingly ciliogenesis occurs in some surface endometrial cells. The paper gives an inconographic survey of the early proliferative phase, illustrating changes from glandular epithelium to the lining epithelial layer and ciliogenesis in the latter. The new formation of ciliae in endometrial epithelial cells is an unique phenomenon, being influenced by the cyclic endocrine regulation of the endometrial function in human reproduction.
Biopsy studies of human endometrium: criteria of dating and information about amenorrhea, menorrhagia, and time of ovulation.
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