Different Surgical Techniques in the All-on-4 Treatment Concept: Evaluation of the Stress Distribution Created in Implant and Peripheral Bone with Finite Element Analysis.

Purpose: To examine the stresses caused by different All-on-4 surgical techniques-conventional, a combination of monocortical and bicortical, bicortical, and nasal floor elevation-on the implant and the surrounding bone using 3D finite element analysis (FEA).

Materials And Methods: A 3D bone model of the atrophic maxilla was created based on CT imaging of the fully edentulous adult patient. All implants used in the models were 4 mm in diameter, and the length was 13 mm in the anterior and 15 mm in the posterior.

How efficient are facial masks against COVID-19? Evaluating the mask use of various communities one year into the pandemic.

Face masks are devices worn over the mouth and nose to protect against splashes, infectious respiratory droplets, or aerosols generated during breathing or coughing according to their filtering capacity. Medical masks, respirators, or cloth masks have been used for source control and for the protection of the exposed. After the first case on March 11, 2020, in Turkey, National COVID-19 Scientific Advisory Board published various contents for the correct use of masks.

Long-Term Outcome of Arthrocentesis Plus Hyaluronic Acid Injection in Patients With Wilkes Stage II and III Temporomandibular Joint Internal Derangement.

Objective: Arthrocentesis is a minimally invasive procedure used to manage temporomandibular joint (TMJ) internal derangement (ID). This study evaluated the outcome of arthrocentesis in patients with Wilkes stage II and III TMJ ID.

Patients And Methods: This retrospective study enrolled 50 patients who underwent arthrocentesis in 2011 and 2012 at the Karadeniz Technical University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Turkey.

Horizontal maxillary sinus septa: An uncommon entity.

Introduction: Maxillary sinus septas are barriers of cortical bone that arise from the floor or from the walls of sinus and may even divide the sinus into two or more cavities. Morphologically maxillary sinus septa are generally oriented in buccopalatinal orientation horizontal or sagittal orientation of the sinus septa is a rare condition.

Presentation Of Case: This report presents two sinus lift case, in which observed septa in a horizontal orientation was presented.

Comparative treatment outcomes of menopausal and nonmenopausal women after arthrocentesis.

Objectives: Most of the patients treated for temporomandibular joint disorders constituted from the female population, and this situation is generally hypothesized and demonstrated in several studies. Arthrocentesis of the temporomandibular joint is a minimally invasive and effective treatment method in the management of patients with stage III and stage IV Wilkes syndrome. This study was aimed at assessing the effectiveness of this method between menopausal and nonmenopausal female patients.

Marginal bone resorption around dental implants placed in grafted sinuses; an up-to-30-month clinical and radiological follow-up.

Objective: To determine the relative success of two different bone grafting material - putty and powder forms of De-mineralised Bone Matrix (DBM) - used in sinus lift procedure.

Methods: The retrospective study was conducted at the Department of Oral and Maxillofacial Surgery, Ankara University, Ankara, Turkey, and comprised data related to the patients referred for bilateral maxillary sinus augmentation between 2007 and 2010. During the period, 48 endoosseous implants were placed concurrently with the sinus augmentation in 12 patients.

Does an alkaline environment prevent the development of bisphosphonate-related osteonecrosis of the jaw? An experimental study in rats.

Objective: To investigate the preventive effect of locally applied sodium bicarbonate on bisphosphonate-related osteonecrosis of the jaw (BRONJ).

Study Design: Thirty-six Sprague-Dawley rats were divided into 4 groups. Animals in group I received 0.

Short-term results of prolotherapy in the management of temporomandibular joint dislocation.

Objective: Prolotherapy, the rehabilitation of ligaments or tendons by induced proliferation of cells by using dextrose, is a noninvasive and effective method for the treatment of temporomandibular joint (TMJ) dislocation. The aim of this study was to evaluate the efficacy of prolotherapy method for the management of acute or chronic dislocation of TMJ.

Materials And Methods: In this study, 10 patients with TMJ dislocation (2 acute, 8 chronic) were examined retrospectively.

Evaluation of sedation in oral and maxillofacial surgery in ambulatory patients: failure and complications.

Objectives: This study evaluated the failure and complication rates of sedation in ambulatory patients undergoing oral and maxillofacial surgery.

Materials And Methods: This retrospective cohort study was carried out among 619 patients who had undergone maxillofacial surgical procedures under intravenous sedation with midazolam and fentanyl. Each patient's age, American Society of Anesthesiologists (ASA) classification, systemic condition, surgical procedure, complications, and failures were recorded for evaluation.

An acoustical analysis of the effects of maxillary sinus augmentation on voice quality.

Objective: Increased experience in sinus lifting procedures has led to a number of literature reports, but the potential effects of sinus lifting on voice quality is not clearly addressed in clinical studies. The aim of this study was to objectively investigate the effects of sinus lifting on alterations in voice quality and, in particular, on vocal resonance.

Study Design: A total of 17 patients who were in need of bilateral sinus augmentation were recruited.

Comparative evaluation of antimicrobial effects of Er:YAG, diode, and CO₂ lasers on titanium discs: an experimental study.

Purpose: This study examined carbon dioxide (CO(2); 10,600 nm), diode (808 nm), and erbium (Er):yttrium-aluminum-garnet (YAG; 2,940 nm) laser applications on Staphylococcus aureus contaminated, sandblasted, large-grit, acid-etched surface titanium discs and performed a comparative evaluation of the obtained bactericidal effects and the applicability of these effects in clinical practice.

Materials And Methods: This study was carried out in 5 main groups: Er:YAG laser in very short pulse (VSP) emission mode, Er:YAG laser in short pulse (SP) emission mode, diode laser with a 320-nm fiber optic diode laser with an R24-B handpiece, and CO(2) laser. After laser irradiation, dilutions were spread on sheep blood agar plates and, after an incubation period of 24 hours, colony-forming units were counted and compared with the control group, and the bactericidal activity was assessed in relation to the colony counts.

Tooth in the nose: unusual presentation of a misdiagnosed maxillary ossifying fibroma.

Fibro-osseous lesions involving the paranasal sinuses are uncommon, and making a determination of their histologic type is challenging. Correlating clinical and surgical findings with radiologic and histologic characteristics is essential for making a definitive diagnosis. We describe a case of misdiagnosed maxillary ossifying fibroma presenting as a solitary mass that completely filled and enlarged the left maxillary sinus.

Radiologic evaluation of putty versus powder form of demineralized bone matrix in sinus floor elevation.

The aim of this study was to evaluate differences in ossification of the 2 forms of demineralized bone matrix (DBM)-putty and powder-radiographically, using digital densitometry on panoramic radiographs in maxillary sinus floor augmentation procedures. Twelve subjects needing bilateral maxillary sinus floor augmentation for the placement of osseointegrated implants were included in this study. The left and right maxillary sinuses were augmented in the same session in each patient using the 2 preferred forms of DBM-putty and powder-during the same session.

Methicillin-resistant Staphylococcus aureus (MRSA) osteomyelitis of the mandible.

Methicillin-resistant Staphylococcus aureus (MRSA) is a type of Staphylococcus that is resistant to certain antibiotics, such as methicillin, oxacillin, penicillin, and amoxicillin. This nosocomial pathogen has become a great threat in hospitals globally. Up to 40% of the normal population carries S.