Physical and Chemical Properties of Solids
Key Terms RHEOLOGY Dilatant Resistance to flow increases as the rate of deformation (shear strain rate) increases. The more rapidly dilatant fluids are stirred or forced through a syringe, the…
Mechanical Properties of Solids
Outline What Are Mechanical Properties? Stress-Strain Properties Other Strength Test Methods Fracture of Restorations Properties of Surface Interactions Strength of Tooth Structure Selection of Dental Materials Key Terms Brittle Relative…
Precision and trueness of maxillary crowded models produced by 2 vat photopolymerization 3-dimensional printing techniques
Introduction This cross-sectional study aimed to analyze the precision and trueness of dental models produced using 2 rapid prototyping 3-dimensional printers. Methods A digital crowded maxillary arch with a T-shaped…
Orthodontic space closure in a young female patient with solitary median maxillary central incisor syndrome
A solitary median maxillary incisor can occur as a rare single dental anomaly or a symptom of the early-intrauterine developmental brain disorder of holoprosencephaly. The few published case reports about…
Treatment of maxillary transversal deficiency by using a mini-implant-borne rapid maxillary expander and aligners in combination
Bone-borne rapid maxillary expansion distraction devices are used to achieve a more skeletal expansion and to avoid dental side effects of conventional expanders such as tipping of anchorage teeth. In…
How do general dental practitioners perceive and deal with orthodontic bonded retainers?
Introduction Long-term follow-up and management of orthodontic bonded retainers require a strong collaboration between orthodontists and general dental practitioners (GDPs). This study aimed to evaluate if Eastern French GDPs were…
Bone depth and thickness of different infrazygomatic crest miniscrew insertion paths between the first and second maxillary molars for distal tooth movement: A 3-dimensional assessment
Introduction This research aimed to measure the bone depth and thickness of different insertion paths for safe placement of infrazygomatic crest miniscrews between the first (U6) and second maxillary molars…
Exposure to the oral environment enhances the corrosion of metal orthodontic appliances caused by fluoride-containing products: Cytotoxicity, metal ion release, and surface roughness
Introduction This study aimed to evaluate the metal ion release, cytotoxicity, and surface roughness of clinically used metal orthodontic appliances after immersion in different fluoride product solutions compared with those…
Are chin and symphysis morphology facial type–dependent? A computed tomography-based study
Introduction The chin is a major determinant of the facial profile; hence, it plays a major role in orthodontics and orthognathic surgery. It is thus essential to follow and better…
Correlation between esthetic expectations for orthognathic treatment and psychological characteristics among Chinese adult patients
Introduction This study aimed to evaluate the association of esthetic expectations with self-reported personal characteristics, anxiety, depression, self-esteem, oral health–related quality of life, and the Orthognathic Quality of Life Questionnaire…
Product advertisements in orthodontic journals: Are they evidence-based?
Introduction Previous research has suggested orthodontic advertisements are poorly supported by evidence. The primary aim of this study was to identify the type and quality of evidence supporting advertisement claims…
Development of dentofacial characteristics related to Incontinentia Pigmenti syndrome: A repeated cross-sectional study
Introduction This research aimed to investigate the dentofacial characteristics of patients with Incontinentia Pigmenti (IP) (or Bloch-Sulzberger) syndrome in childhood, juvenile, and adulthood developmental stages. Methods Fifteen female patients with…
A cross-sectional evaluation of the impact of Class II Division 1 malocclusion in treated and untreated adolescents on oral health–related quality of life
Introduction The relationship between malocclusion, orthodontic treatment, and oral health–related quality of life (OHRQOL) is complicated, with some traits, such as increased overjet, having a potentially greater adverse effect on…
Assessment of the effects of local platelet-rich fibrin injection and piezocision on orthodontic tooth movement during canine distalization
Introduction The study aimed to evaluate and compare the effects of local platelet-rich fibrin (PRF) injection and piezocision applications on tooth movement during canine distalization, as well as to evaluate…
Assessment of Streptococcus mutansbiofilms on orthodontic adhesives over 7 days
Introduction The purpose of this study was to compare the metabolism of Streptococcus mutans biofilms after 1-7 days of growth on different orthodontic adhesives. Methods Specimens of 6 commercial orthodontic adhesives…
Treatment effects of functional appliances in children with Class II malocclusion with and without morphologic deviations in the upper spine
Introduction This research aimed to compare treatment effects of functional appliances between children with and without morphologic deviations in the upper spine and analyze associations between Atlas dimensions and the…
Effect of light-emitting diode–mediated photobiomodulation on extraction space closure in adolescents and young adults: A split-mouth, randomized controlled trial
Introduction This split-mouth trial aimed to examine the effects of light-emitting diode (LED)–mediated photobiomodulation compared with no photobiomodulation on maxillary canine distalization. Methods Twenty participants (10 males and 10 females;…
A comparative assessment of information recall and comprehension between conventional leaflets and an animated video in adolescent patients undergoing fixed orthodontic treatment: A single-center, randomized controlled trial
Introduction The objective of this 2-arm parallel trial was to investigate the recall and comprehension of the information of orthodontic patients undergoing fixed orthodontic treatment using either the verbal explanation…
Wear resistance of crowns made from different CAM/CAD materials
Highlights • PICN has high wear resistance against steatite antagonist. • Low impact on surface roughness for PICN by wear. • Zirconia reinforced lithium disilicate is less abrasive against steatite….
Effect of different manipulations on the physical, chemical and microstructural characteristics of Biodentine
Highlights • Manual mixing with water results in microstructural changes, with lower setting time and lower calcium ion release. • Manual mixing required more liquid added to the mixture to…
