Effects of Platelet-Rich Fibrin on Bone Healing Around Implants Placed in Maxillary Sinuses: A Histomorphometric Assessment in Rabbits.

This study investigated the effect of platelet-rich fibrin (PRF) on bone healing around implants placed in elevated sinus cavities. Forty New Zealand albino rabbits were divided into eight groups, based on the time of sacrifice (14 or 40 days) and the material used: blood clot (control), hydroxyapatite (HA) from bovine bone, HA combined with PRF, and PRF alone. Each group consisted of five animals (n = 5).

Pre- and Post-Rehabilitation Tomographic Superimposition of Full Arch Cases, Obtaining the Drop Values and How to Get Around Inaccuracies.

Rehabilitating severely atrophic maxillae, particularly when bone loss and sinus pathologies preclude conventional dental implants, is a complex challenge. Techniques such as all-on-four offer solutions for some patients, but severe resorption may necessitate zygomatic implants. Guided surgery, aided by digital tools, improves implant accuracy and reduces complications.

The Addition of Hydroxyapatite Nanoparticles on Implant Surfaces Modified by Zirconia Blasting and Acid Etching to Enhance Peri-Implant Bone Healing.

This study investigated the impact of adding hydroxyapatite nanoparticles to implant surfaces treated with zirconia blasting and acid etching (ZiHa), focusing on structural changes and bone healing parameters in low-density bone sites. The topographical characterization of titanium discs with a ZiHa surface and a commercially modified zirconia-blasted and acid-etched surface (Zi) was performed using scanning electron microscopy, profilometry, and surface-free energy. For the in vivo assessment, 22 female rats were ovariectomized and kept for 90 days, after which one implant from each group was randomly placed in each tibial metaphysis of the animals.

Comparison of Manual (2D) and Digital (3D) Methods in the Assessment of Simulated Facial Edema.

Background: An edema assessment following dental surgeries is essential to improving the dental surgeon's technique and, consequentially, patient comfort.

Purpose: Two-dimensional (2D) methods are limited in analyzing 3-dimensional (3D) surfaces. Currently, 3D methods are used to investigate postoperative swelling.

Oral Surgery in Patients With Sturge-Weber Syndrome.

The Sturge-Weber syndrome (SSW) is a congenital neurocutaneous malformation, with angiomas involving the leptomeningea and facial skin. This syndrome is characterized by corticocerebral angiomatosis, cerebral calcifications, ocular affections, mental retardation, increased risk of stroke, counterlateral hemiplegia, and seizures. Another important feature of SSW is the flameus nevus on the face.

Sclerotherapy for Extensive Vascular Malformation in the Tongue.

Vascular malformations (VMs) are benign lesions of blood vessels originated from an error in vascular morphogenesis during the embryologic phase. Generally, when located in the head and neck region VMs occurs in lips, tongue, buccal mucosa, gums, or palate. The VMs are usually asymptomatic, varies in size and may cause facial asymmetries.

Management of Blowout Fracture With Support of Video Endoscopy in a Pediatric Patient.

Pure orbital fractures have the tendency to occur on medial wall and orbital floor; because these points are more fragile, the endoscopy can be utilized for accomplishing the task of repositioning the herniated content, as well as serving as an additional tool, helping to view the orbital defects through a transantral approach. The presented case is a female patient, 12 years old, who was diagnosed as having a pure blowout fracture, on right orbital floor, type trapdoor, with orbital content herniated toward the maxillary sinus. It was realized that a surgical procedure for reduction of orbital content through video endoscopy, via antral, allowed a great viewing of soft and hard structures, checking the positioning of implants and its relation with the orbital cavity, enabling installing through a small surgical access and minimum detachment, and favoring postoperative recovery.