Surgical Treatment of Synovial Chondromatosis in the Inferior Compartment of the Temporomandibular Joint With Articular Disc Involvement.

The authors report an unusual case of painful synovial chondromatosis originated in the inferior compartment of the temporomandibular joint (TMJ) with articular disc involvement in a 56-year-old woman with complaint of severe pain in the right preauricular region. Magnetic resonance images showed advanced destruction of the right articular disc anteriorly displaced, condylar erosion, and distinct nodules within an extremely expanded inferior joint compartment with large amount of fluid, as well as a large TMJ effusion. A scintigraphy showed elevated bone uptake in the right TMJ, demonstrating intense bone remodeling activity in the region.

Three-dimensional analysis of the pharyngeal airway space and hyoid bone position after orthognathic surgery.

Purpose: The aim of this study was to evaluate changes in the pharyngeal airway space (PAS) and hyoid bone position after orthognathic surgery with cone-beam computed tomography (CBCT).

Material And Methods: This study was conducted with the tomographic records of 30 patients with skeletal class II or III deformities submitted to two different types of orthognathic surgery: Group 1 (n = 15), maxillary advancement, and mandibular setback; and Group 2 (n = 15), maxillomandibular advancement. CBCT scans were acquired preoperatively (T); and at around 1.

Use of biomaterials with or without platelet-rich plasma in postextraction sites: a microscopic study in dogs.

Purpose: Sites that will receive dental implants need to be quantitatively and qualitatively suitable for this therapy. The treatment of postextraction areas with biomaterials associated with platelet-rich plasma (PRP) might make the repair process more efficient, resulting in desirable bone characteristics. The present study sought to evaluate the effectiveness of PRP in the process of new bone formation when associated with biomaterials.