Consistent Kaluza-Klein Truncations and Two-Dimensional Gauged Supergravity.

We consider generalized Scherk-Schwarz reductions of E_{9} exceptional field theory to D=2 space-time dimensions and, in particular, construct the resulting scalar potential of all gauged supergravities that can be obtained in this way. This provides the first general expression for a multitude of theories with an interesting structure of vacua, covering potentially many new AdS_{2} cases. As an application, we prove the consistency of the truncation of eleven-dimensional supergravity on S^{8}×S^{1} to SO(9) gauged maximal supergravity.

Revision temporomandibular joint arthroplasty for the treatment of acquired metal allergy and review of the literature.

The purpose of this study was to examine the outcomes of patients who received revision temporomandibular joint (TMJ) arthroplasty for the treatment of acquired metal allergy. It was hypothesized that subjects would have significant improvements in pain, swelling, and function. Patients who underwent TMJ revision due to nickel allergy were identified retrospectively.

Microbiology Alloplastic Total Joint Infections: A 20-Year Retrospective Study.

Purpose: Prosthetic joint infection (PJI) is a rare complication of temporomandibular joint replacement (TJR). This study evaluated TJR PJIs at the authors' institution over a 20-year period, including micro-organisms cultured, antibiotic resistance patterns, and intraoperative protocols of TJR.

Patients And Methods: Patients were identified using Current Procedural Terminology and International Classification of Diseases, Ninth Revision codes and surgical logs from January 1995 through 2015.

Is There a Difference in Cost Between Standard and Virtual Surgical Planning for Orthognathic Surgery?

Purpose: Virtual surgical planning (VSP) and 3-dimensional printing of surgical splints are becoming the standard of care for orthognathic surgery, but costs have not been thoroughly evaluated. The purpose of this study was to compare the cost of VSP and 3-dimensional printing of splints ("VSP") versus that of 2-dimensional cephalometric evaluation, model surgery, and manual splint fabrication ("standard planning").

Materials And Methods: This is a retrospective cohort study including patients planned for bimaxillary surgery from January 2014 to January 2015 at Massachusetts General Hospital.