Maxillary sinus floor elevation using hydroxyapatite nano particles vs tenting technique with simultaneous implant placement: A randomized clinical trial.

Purpose: The present study was conducted to evaluate the amount of bone height gain, density values, and implant stability after maxillary sinus floor elevation using graftless tenting technique or the use of Hydroxyapatite Nanoparticles bone substitute for augmentation with simultaneous implant placement.

Materials And Methods: A total of 20 sinuses with a residual alveolar bone height ranging from 4-6 mm were divided into two groups and underwent sinus augmentation using nano hydroxyapatite bone substitute material and the graftless tenting technique with simultaneous implant placement. Computed tomography CT scans and ISQ measurements were conducted to evaluate bone quality, quantity, and implant stability.

Effect of intravenous dipyridamole on coronary flow parameters in patients with isolated coronary artery ectasia: assessment by transesophageal echocardiography.

Background: In a prospective study design, we sought to assess the effect of dipyridamole on coronary flow parameters in patients with isolated coronary artery ectasia (CAE) as compared to subjects with normal coronaries.

Methods: We enrolled 30 patients with ectasia of the left anterior descending (LAD) artery (study group), and 10 subjects with normal coronaries (control group). All subjects underwent transesophageal echocardiography to record flow velocities in the proximal LAD coronary artery, and velocity time integrals were calculated.