Bone Regeneration After Sinus Floor Elevation in an Intact Sinus or a Sinus With Prior Large Membrane Perforation: A Preclinical Study Using a Rabbit Sinus Model.

Aim: To determine bone regeneration following sinus floor elevation (SFE) at sites with or without prior sinus membrane perforation.

Materials And Methods: The sinus membranes in the maxillary sinuses of 12 rabbits were intentionally perforated (≥ 5 mm) on one side, followed by application of a collagen matrix. SFE was performed on both sinuses after 8 weeks of healing, presenting two groups: SFE with a previous large sinus membrane perforation (group SFE_Perf), and in an intact sinus (group SFE).

Evaluation of the Incidence of Nocardia Infection in Solid Organ Transplant Recipients on Trimethoprim-Sulfamethoxazole for Opportunistic Infection Prophylaxis.

Background: Trimethoprim-sulfamethoxazole (TMP-SMX) is the preferred prophylactic agent for pneumonia (PJP) and toxoplasmosis after solid organ transplant (SOT). Compared with other agents, it has additional activity against species.

Objective: The purpose of this study was to evaluate the incidence of infection in SOT patients receiving TMP-SMX or an alternative agent for opportunistic infection (OI) prophylaxis.

Nucleated red blood cells for characterization of systemic inflammatory response syndrome in dogs.

Background: Nucleated red blood cells (nRBCs) are increased by disease processes and hematopoietic stress.

Objectives: To evaluate the utility of nRBCs as a marker of disease severity and prognosis in dogs with systemic inflammatory response syndrome (SIRS).

Animals: Sixty-two client-owned dogs met the criteria of SIRS without anemia.

Effects of Polydeoxyribonucleotide (PDRN) on Endosinus Bone Regeneration Following Sinus Floor Elevation: An Experimental In Vivo Pilot Study.

Objective: To determine the effect of polydeoxyribonucleotide (PDRN) on endosinus bone regeneration in a rabbit sinus model at sequential healing time points.

Materials And Methods: Eighteen New Zealand white rabbits were used. Bilateral sinus floor elevation (SFE) was performed.

Comparing Small Buccal Dehiscence Defects Treated with or without Guided Bone Regeneration. A Sub-Analysis of a RCT.

Aim: to assess clinical and radiographical outcomes of single tooth posterior implants with a dehiscence defect treated with or without guided bone regeneration (GBR).

Methods: In a randomized clinical trial of 59 patients, single-tooth posterior implants were placed. For the subanalysis of 16 patients with a buccal dehiscence defect (≤ 5mm), the implants were randomly assigned to GBR or spontaneous healing (SH).