Does bone microbial contamination influence autogenous grafting in sinus augmentation?
To the best of our knowledge, this is the first study to confirm osseous microbial contamination with major periodontopathogens in individuals undergoing maxillary sinus augmentation with a history of periodontitis. The effect on the grafting outcome translated into bone volume loss in the grafted sinus 6 months postaugmentation. Specific microbial contamination may have an impact on osteogenesis in osseous regeneration.
Adenocarcinoma of the duodenum gives rise to nonspecific gastrointestinal tract symptoms, and diagnosis is often delayed. Despite this delay, the Whipple procedure may still be curative for patients with positive lymph nodes, a fact poorly appreciated in the surgical literature. The role of segmental resection for distal duodenal tumors is unclear.