NIR irradiation of human buccal fat pad adipose stem cells and its effect on TRP ion channels.

The effect of near infrared (NIR) laser irradiation on proliferation and osteogenic differentiation of buccal fat pad-derived stem cells and the role of transient receptor potential (TRP) channels was investigated in the current research. After stem cell isolation, a 940 nm laser with 0.1 W, 3 J/cm was used in pulsed and continuous mode for irradiation in 3 sessions once every 48 h.

Three-Dimensional Finite Element Analysis of Stress Distribution and Displacement of the Maxilla Following Surgically Assisted Rapid Maxillary Expansion with Tooth- and Bone-Borne Devices.

Objectives: The aim of this study was to investigate the displacement and stress distribution during surgically assisted rapid maxillary expansion under different surgical conditions with tooth- and bone-borne devices.

Materials And Methods: Three-dimensional (3D) finite element model of a maxilla was constructed and an expansion force of 100 N was applied to the left and right molars and premolars with tooth-borne devices and the left and right of mid-palatal sutures at the first molar level with bone-borne devices. Five computer-aided design (CAD) models were simulated as follows and surgical procedures were used: G1: control group (without surgery); G2: Le Fort I osteotomy; G3: Le Fort I osteotomy and para-median osteotomy; G4: Le Fort I osteotomy and pterygomaxillary separation; and G5: Le Fort I osteotomy, para-median osteotomy, and pterygomaxillary separation.

A 7-year study of 1,278 patients with maxillofacial trauma and cerebrospinal fluid leak.

Background: A number of patients with facial fractures have cerebrospinal fluid (CSF) leak that may result in meningitis and other central nervous system complications. Commonly, CSF leak occurs following trauma, but the etiology and pattern of this disorder are different from region to region. This study aims to evaluate the distribution of CSF leak in patients with maxillofacial fractures in Isfahan province, Iran.

Can ambient orange fragrance reduce patient anxiety during surgical removal of impacted mandibular third molars?

Purpose: To investigate whether ambient orange fragrance, compared with no fragrance, can reduce patient anxiety before and during surgical removal of an impacted mandibular third molar.

Materials And Methods: In the present randomized clinical trial, the patients who required extraction of an impacted mandibular third molar and fulfilled the predetermined criteria were included. A dental anxiety scale (DAS) questionnaire was used to determine the anxiety level of the patients before surgery.

Maxillary repositioning according to Frankfort horizontal plane during orthognathic surgery.

Context: There are a lot of disagreements among surgeons over controlling the maxillary position during orthognathic surgery.

Aim: To investigate maxillary repositioning according to Frankfort horizontal plane in orthognathic surgery.

Materials And Methods: Fourteen patients were selected who were submitted to maxillary or bimaxillary surgery.

Bilateral temporomandibular joint pain as the first and only symptom of ischemic cardiac disease: a case report.

Pain of ischemic and non-ischemic cardiac disease can be referred to the craniofacial region. Also, in 6% of patients, craniofacial pain can be the first and only and symptom of cardiac ischemia. Missed diagnoses of these cases may lead to unnecessary dental treatment and a significant number of deaths in patients with atypical symptoms of coronary disease.