Treatment of intrabony defects with beta-tricalciumphosphate alone and in combination with platelet-rich plasma.

Background: The therapeutic efficacy of platelet-rich plasma (PRP) still remains controversial. This study aimed to compare the efficacy of a beta-tricalcium phosphate (β-TCP) and PRP/β-TCP combination both clinically and radiographically.

Methods: Fourteen chronic periodontitis patients with at least two similar three-walled defects were included in the study.

Consistent intrafamilial transmission of Actinobacillus actinomycetemcomitans despite clonal diversity.

Background: Actinobacillus actinomycetemcomitans is a major pathogen in aggressive periodontitis. Our objectives were to determine the periodontal status and occurrence of A. actinomycetemcomitans in family members of subjects with A.