Transnasal endoscopic removal of an ectopic maxillary sinus tooth associated with a dentigerous cyst: A case report and a brief review.

Introduction: Ectopic teeth in the maxillary sinus, particularly when associated with dentigerous cysts, represent a rare clinical entity that can lead to significant complications. Early detection and appropriate surgical management are crucial for optimal outcomes, with minimally invasive approaches gaining increasing prominence in contemporary practice.

Case Presentation: An 18-year-old male presented with right-sided facial swelling and persistent discomfort.

Promotion of mandibular distraction osteogenesis by parathyroid hormone via macrophage polarization induced through iNOS downregulation.

Objective: To investigate whether Parathyroid hormone (PTH) can promote mandibular distraction osteogenesis by regulating macrophage polarization and the underlying mechanisms of this phenomenon.

Methods: Forty-eight Rabbits were used to establish the mandibular distraction osteogenesis experimental model, randomly divided into 2 groups. Intermittent post-operative injections of 20 μg/kg PTH and normal saline were administered to the experimental and control groups, respectively.

The immunomodulatory effect of IL-4 accelerates bone substitute material-mediated osteogenesis in aged rats via NLRP3 inflammasome inhibition.

Background: Bone defect repair by implanting bone substitute materials has been a common clinical treatment. With the understanding of substance-immune system interactions and increasing evidence indicating that the post-implantation immune response determines the fate of bone substitute materials, active modulation of host macrophage polarization is considered a promising strategy. However, whether the same regulatory effects exist when an individual immune system is altered with aging is unclear.

Bacteria Co-colonizing with in Two Asymptomatic Patients.

Background: infection (CDI) is the leading cause of nosocomial diarrhea. Co-colonization of key bacterial taxa may prevent the transition from asymptomatic colonization to CDI. However, little is known about the composition of key bacterial taxa in asymptomatic patients.