How screw connections influence the primary stability of acetabular cups under consideration of different bone models.

Introduction: Good osteointegration of implants requires sufficient primary stability. Aim of this study was to examine the influence of screw fixation on the primary stability of press-fit cups.

Methods: Two press-fit acetabular cups were tested with regard to the influence and number of screws and their primary stability.

Respiratory mode, nasal patency and palatine dimensions.

Purpose: To investigate the influence of breathing mode and nasal patency in the dimensions of the hard palate by comparing mouth breathing (MB) and nasal breathing (NB) adults.

Methods: Seventy-seven individuals, distributed into the MB group (n=38) and the NB group (n=39), of both genders and aged between 18 and 30 years old, took part in the study. The respiratory mode diagnosis was based on anamnesis, physical characteristics, and otorhinolaryngological examination.

Oral contraceptives suppress cell proliferation and enhance apoptosis of eutopic endometrial tissue from patients with endometriosis.

Objective: To evaluate the effects of administering combination oral contraceptives (COCs) to patients with endometriosis on the regulation of cell growth in the eutopic endometrium.

Design: Prospective study.

Setting: Research institute and clinical fertility center.