Despite the importance of children's time use to their quality of life, relatively few international comparative studies have focused on the patterns of children's time use and their relationship with quality of life. This study, therefore, aimed to examine the typologies of time use among 12-year-old children by gender and their relationship with their quality of life. We used the second wave of data from the International Survey of Children's Well-Being collected from 16 countries.
View Article and Find Full Text PDFPlatelet-rich fibrin (PRF) is nowadays often used in various fields, but no removal torque studies have yet been done to evaluate the effects of the platelet-rich fibrin on the bone integration at the initial healing period. An experimental study have been performed in rabbits to evaluate whether the complete PRF clots can accelerate the bone integration of implants at the initial healing period after creating bone defects in tibias. The effect of the complete PRF clots on bone integration was studied in two rabbit groups, 4-week group (group A) and 6-week group (group B) after preparing bony defects.
View Article and Find Full Text PDFInt J Oral Maxillofac Implants
April 2011
Purpose: To determine whether sinus membrane elevation alone can lead to new bone formation on the maxillary sinus floor.
Materials And Methods: Among patients who were to receive implant treatment, those who had 4 to 5 mm of bone height in the maxillary sinus floor (as measured radiographically) were selected as candidates for sinus membrane elevation. The lateral sinus wall was exposed through a buccal mucoperiosteal incision.
Int J Oral Maxillofac Implants
June 2009
Purpose: To investigate postextraction bone formation over time in both diseased and healthy sockets.
Materials And Methods: Core specimens of healing tissues following tooth extraction were obtained at the time of implant placement in patients treated between October 2005 and December 2007. A disease group and a control group were classified according to socket examination at the time of extraction.