Effectiveness of different surface treatments on bond strength between 3D-printed teeth and denture base.

Purpose: To investigate the effects of different surface treatments and thermal cycling on the shear bond strength between 3D-printed teeth and denture bases.

Material And Methods: For the shear bond strength (SBS) test, the specimens were the maxillary central incisors (11 × 9 × 7 mm) bonded on a cylindrical base (20 × 25 mm). The control group was heat-cured polymethylmethacrylate (PMMA) (N = 20).

Impact of using magnifying dental loupes on clinical performance during tooth preparation: A systematic review.

Background: To assess whether using magnification loupes affects tooth preparation working posture performed by undergraduate students and dentistry professionals and whether it influences the quality of the preparation, operator satisfaction and procedure time.

Material And Methods: This review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement and registered in the International Prospective Register of Systematic Review (CRD42023482377). Electronic searches were conducted in PubMed/Medline, Cochrane Library, Web of Science, and Scopus databases for relevant articles published up to August 2023.

Macromorphometric Analysis of Metastatic Lesions in Bones due to Breast Cancer: Contribution to Human Identification.

Objective: This study aimed to report the metastatic lesions observed in identified skeletons whose deaths were caused by breast cancer complications to provide information and evidence that can be used in cases of human identification forensics.

Methods: The research was conducted at the Centre for Forensic Anthropology Studies of the Faculty of Odontology of the University of Pernambuco (CEAF/FOP/UPE), Recife, Brazil. The data bank of the CEAF/FOP/UPE was searched for skeletons with the cause of death reported as due to breast cancer, resulting in five cases.

Complete denture rehabilitation for a patient with Parkinson's disease using clinical strategies: A case report.

Objective: To present clinical strategies for prosthetic rehabilitation with complete dentures (CDs) of a Parkinson's disease patient.

Case Report: An 82-year-old patient sought the Department of Dentistry at UFRN, reporting retention dissatisfaction and hamper to the mandibular CD adaptation. Patient-reported a dry mouth sensation, and exhibited disordered mandibular movements, tremors, and resorbed mandibular ridge.

Malignant hyperthermia in maxillofacial surgery: Literature review supported by case presentation.

Objective: Malignant hyperthermia (MH) is characterized by a state of hypermetabolism after exposure to halogenated inhalational anesthetics or succinylcholine. The aims of this study were to carry out an updated review on the subject and report an illustrative case of MH in urgent maxillofacial surgery.

Material And Methods: A search of the PubMed/MEDLINE database using the keyword "malignant hyperthermia" was performed including articles published over the last 11 years in English, Spanish or Portuguese.

Comparison of two alar cinch base suture in orthognathic surgery: a randomized clinical trial.

Le Fort I osteotomy is widely used in orthognathic surgery to correct maxillary deformities. However, this osteotomy may be related with the increase of alar base width. The aims of the present study were to compare two alar cinch suture after Le Fort I osteotomy and observe which type presents a better result in controlling the enlargement of the alar base after maxillary repositioning in orthognathic surgery.

Sleep disturbance and depression in adolescence: an integrative review of literature.

This study investigated the association between sleep disorders and depression in adolescents, PubMed/MedLine, SciELO and Lilacs databases were consulted, with an interval of 7 years (2013-2019), in English, Portuguese and Spanish. An integrative review was carried out where after analyzing the inclusion criteria, 616 articles were selected for reading titles and abstracts and 94 of these were selected for full reading. After the full reading, 15 articles were elected to be part of this review.

Does ferrule thickness influence resistance to fracture of endodontically treated teeth?

Background: Teeth with severe crown destruction and endodontically treated may or may not present a circular strip of dental tissue located in the cervical region called ferrule.

Aims: The aims of this study were to evaluate ferrule thickness influence on endodontically treated teeth (ETT) resistance to fracture.

Materials And Methods: A total of 30 bovine incisor teeth were selected, endodontically treated and randomly distributed, according to the ferrule thickness: G1- no ferrule, G2 - 1 mm, and G3 - 2 mm.

Effect of Pressure, Post-Pressing Time, and Polymerization Cycle on the Degree of Conversion of Thermoactivated Acrylic Resin.

Herein, the effect of different post-pressing times and pressure in two cycles of polymerization on the degree of conversion (DC) of thermally activated acrylic resin (TRRA) is analyzed to optimize the polymerization of this material. After post-pressing for 0, 6, or 12 h, polymerization was performed with or without a pressure of 60 psi (0.41 MPa) in a short (4 h) or a long (11 h) cycle, totaling 12 groups.

Cyclic Fatigue Resistance of Mtwo Rotary Instruments with two Different Instrumentation Techniques.

Introduction: The objective of this study was to evaluate whether cervical preparation with Mtwo files in a crown-down technique influences instrumentation time and the cyclic fatigue resistance of these instruments.

Methods And Materials: Two instrumentation techniques were evaluated (manufacturer and crown-down). Each group consisted of 10 kits containing four Mtwo instruments (10/0.

Cyclic Fatigue Resistance of WaveOne Gold, ProDesign R and ProDesign Logic Files in Curved Canals In Vitro.

Introduction: Endodontic instruments are developed to provide a better cleaning of the root canal system and reduce its risk of fracture. The aim of this study was to evaluate the instrumentation time and cyclic fatigue resistance of WaveOne Gold, ProDesign R and ProDesign Logic files.

Methods And Materials: Thirty Nickel-titanium (NiTi) rotary instruments were divided into 3 groups (=10).

Treatment of Large Thyroglossal Duct Cyst.

The thyroglossal duct cyst is the neck congenital abnormality most common in the childhood. Clinically, it shows itself as a solitary neck mass in the region of hyoid bone, it is painless and can be dislocated during de physical examination and tongue protrusion. The most common treatment is its removal through the Sistrunk technique.

A systematic review on the critical size defect model.

Objectives: To systematically review the literature data regarding the critical size defect (CSD) in adult rat calvaria and to determine which defect dimensions could be considered as being critical size.

Material And Methods: A literature search was conducted at Ovid Medline and Embase up to July 2012. Studies presenting with at least one of the primary outcomes of interest (number of defects with complete closure and the percentage of new bone formation (%NBF) in rat calvaria) were included.

Effect of infrared laser in the prevention and treatment of paresthesia in orthognathic surgery.

Orthognathic surgery is the surgical procedure that makes correcting deformities of the bones in the region of the maxilla and mandible a reality in the Brazilian dentistry. However, this type of surgery usually involves paresthesia in the postoperative period, concerning the surgeons who perform them and generating discomfort to patients. This study aimed at evaluating the effect of infrared laser (830 nm) in the prevention and treatment of paresthesias after orthognathic surgery.

Recurrence of central odontogenic fibroma: a rare case.

Central odontogenic fibroma (COF) is a rare, benign, painless, slow-growing tumor associated with expansion of the bone cortex. Histologically, it consists of fibrous connective tissue that contains multiple islands of odontogenic epithelium. Some lesions have diffuse spherical calcifications that usually are related to islands or cords of epithelium.

In vitro biological response to a self-adhesive resin cement under different curing strategies.

Self-adhesive resin cements represents a new approach in indirect restorative dentistry, although little is known about its biological properties. The influence of the curing strategy on the biological response of a self-adhesive resin cement (Rely-X Unicem/3M ESPE) was evaluated through methyltetrazolium (MTT) and nitric oxide (NOx) assays. Cylindrical specimens (n = 48) were prepared and cured according to the following strategies: photoactivation with halogen light-curing unit (LCU) Demetron/Kerr, LED LCU Radii/SDI, and chemical activation.

Formocresol mutagenicity following primary tooth pulp therapy: an in vivo study.

Objectives: To investigate whether formocresol, in Buckley's original formulation, is mutagenic in vivo to lymphocyte cultures obtained from the peripheral blood of children aged from 5 to 10 years old. These children were recruited from those attending the dental clinics of Recife City Council and the University of Pernambuco School of Dentistry, Brazil.

Methods: The sample comprised 20 children who had primary teeth with cariously exposed vital pulps.