Effect of Treatment with Twin-Block Appliances on Body Posture in Class II Malocclusion Subjects: A Prospective Clinical Study.

BACKGROUND There is strong evidence that malocclusion and body posture are interdependent. The relationship between improvement of nasopharyngeal airway, correction of malocclusion by orthodontic treatment or orthognathic surgery, and changes in body posture were evaluated in several studies. The purpose of the present study was to analyze the effect of the orthodontic treatment with Twin-block appliance on body posture.

[The significance of zinc for contractility of smooth muscles and ultrastructure of their microfilaments in case of hypodynamic stress].

The aim of the study was to investigate the significance of zinc (added to food of the rabbits) for contractility of smooth muscles (effected by acetylcholine) and ultrastructure of their microfilaments in case of hypodynamic stress. Hypodynamic stress of 48-day duration was provoked for Chinchilla rabbits (n=20) by placing them in metal hutches. Every day (48 days) 10 rabbits, which had intervention received doses of zinc 0.