Skull bone thickness versus malocclusion

Skull base bone hyperpneumatization.

A 50-year-old male with a long standing history of compulsive Valsalva maneuvers, complaining of episodes of vertigo underwent head computed tomography. Axial CT slices at the level of the skull base (Fig. A) and the first cervical vertebrae (Fig. B) shows an extensive unusual pneumatization of both the body and lateral processes of the first cervical vertebrae (arrows), with air pouches dissec...

Excessive dietary intake of vitamin A reduces skull bone thickness in mice

Calvarial thinning and skull bone defects have been reported in infants with hypervitaminosis A. These findings have also been described in humans, mice and zebrafish with loss-of-function mutations in the enzyme CYP26B1 that degrades retinoic acid (RA), the active metabolite of vitamin A, indicating that these effects are indeed caused by too high levels of vitamin A and that evolutionary cons...

Gingival Thickness Assessment: Visual versus Direct Measurement

Background and Aim: Several methods have been suggested to measure gingival thick-ness. This study aimed to assess the reliability of visual assessment of facial gingival biotype of maxillary and mandibular teeth with or without using a periodontal probe in comparison with direct measurement. Materials and Methods: Sixty-seven healthy patients (25 women and 42 men) with a total of 100 hopele...

Osteoradionecrosis of the skull stimulating bone metastases.

Multiple skull erosions which simulated bone mestatases developed in a 54-year-old patient who had been treated for favus by radiotherapy 40 years earlier. Radiation necrosis should be recognized and differentiated from defects and erosions due to malignant or infectious process in order to prevent unnecessary procedures and treatment.

Skull Expansion by Spring-Mediated Bone Regeneration