Effect of wearing complete dentures on human palatal mucosal blood flow measured by 133Xe clearance.

In eight edentulous subjects, who had not previously worn dentures, blood flow was measured by 133Xe clearance after intramucosal injection. Upper and lower complete dentures were then constructed for these subjects, and 133Xe clearance was measured after the dentures had been worn for 7 and 40 days. Before the insertion of dentures the mean blood flow to palatal mucosa was 18.9 +/- 7.1 ml/100 g/min. Seven and 40 days after wearing dentures the mean flows to the palatal mucosa were 10.6 +/- 4.5 and 12.6 +/- 5.3 ml/100 g/min, respectively. The difference before and after wearing dentures was statistically significant (p less than 0.05). The subjects were asked not to wear the dentures for 24 h after the third visit on the 40th day whereupon the blood flow reached almost normal levels (16.2 +/- 5.45 ml/100 g/min). The findings show that wearing dentures hinders the blood supply to the palatal mucosa, and that after resting the oral tissues, blood flow may return to normal levels.

[The study of the relationship between the face type and condyle morphology (a cephalometric and anthropometric study)]. / Yüz tipi ile mandibuler kondil morfolojisi iliskisinin degerlendirilmesi (Sefalometrik ve antropometrik çalisma).

The main purpose of this investigation was to study the shape and size of the mandibular condyles for any correlation with type of mandibular rotation. 40 mandibular bones that belongs to modern man, and late Roman stage were examined regarding the size and shape of condyles. The cephalograms of the mandibles were taken and the type of mandibular rotation was recorded on them according to Leiba analysis. The Leiba analysis results showed statistically significant differences while, the differences between the condyle sizes were found to be insignificant between the groups.