Investigation of genetic polymorphisms in genes encoding growth factors and dental pulp calcification in orthodontic patients.

Background And Objectives: Pulp calcification is associated with many factors and triggers, including individual genetic predisposition and orthodontic forces. This study aimed to investigate whether genetic polymorphisms in are associated with a risk of dental pulp calcifications in orthodontic patients.

Materials And Methods: Digital orthopantomography (OPG) and genomic DNA from 132 patients were analyzed in this cross-sectional study.

Periapical Lesions Associated with Demographic Variables, Dental Conditions, Systemic Diseases, and Habits.

Aim And Background: The aim of this study was to analyze the prevalence of periapical lesions and possible associations with demographic, dental conditions, systemic diseases, and habit variables in patients from a private Brazilian university.

Materials And Methods: Data from 452 patients of both sexes, aged 18-78 years, from a Brazilian university were evaluated. Panoramic radiographs were analyzed, and the presence of periapical lesions was recorded.

Influence of Filling Material Remnants on the Diffusion of Hydroxyl Ions in Endodontically Retreated Teeth: An Study.

Aim: To assess the influence of remnants of filling material on hydroxyl ion diffusion from calcium hydroxide (CH) paste, measured by the pH value, in retreated teeth.

Materials And Methods: A total of 120 single-rooted extracted teeth were prepared up to a size 35 hand file and filled. For retreatment, the specimens were divided into four groups ( = 20): ProTaper Universal Retreatment (PUR), PUR with additional instrumentation (PURA), Mtwo Retreatment (MTWR), and MTWR with additional instrumentation (MTWRA).

Dynamic Cyclic Fatigue Resistance of Heat-treated Nickel Titanium Instruments in Reciprocating Motion.

Objective: To compare the fatigue resistance of different heat-treated reciprocating instruments tested in a dynamic cyclic fatigue model.

Methods: Forty-eight new instruments were inspected under magnification and selected for this study, and then divided as follows (n=12): X1 Blue (MK Life, Porto Alegre, RS, Brazil), Pro-R (MK Life), Reciproc (VDW, Munich, Germany), and Reciproc Blue (VDW). Artificial canals presenting a curvature of 60° angle and 5 mm radius were milled in zirconia.

Retrospective analysis of survival of avulsed and replanted permanent teeth according to 2012 or 2020 IADT Guidelines.

This study aimed to compare the survival of replanted teeth that followed the 2012 or the 2020 International Association of Dental Traumatology (IADT) guidelines. Sixty-two permanent replanted teeth were retrospectively assessed (IADT 2012, n = 45; IADT 2020, n = 17). Five years after replantation (from January 2017 to December 2021), clinical and radiographic examinations were performed.

Educational approaches for assessing knowledge about and actions of educators in response to dental avulsion.

Background: Dental trauma affects especially schoolchildren and adolescents. Educators, the responsible for the first appointment, have a fundamental role in the prognosis of dental avulsion that occurred in this environment.

Aim: To evaluate the educational approaches for assessing knowledge and actions in response to dental avulsion among educators.

Postoperative Pain after Endodontic Treatment under Irrigation with 8.25% Sodium Hypochlorite and Other Solutions: A Randomized Clinical Trial.

Introduction: The aim of this study was to evaluate the postoperative pain in patients after endodontic treatment using 8.25% sodium hypochlorite (NaOCl) compared with other concentrations and 2% chlorhexidine (CHX).

Methods: In this double-blind randomized trial, 180 patients were evaluated who underwent a single session of endodontic treatment under irrigation with 2.

Effects of 1-Ethyl-3-(3-Dimethylaminopropyl) Carbodiimide on Adhesion of Posts in Teeth Obturated With Different Sealers.

The aim of this study was to evaluate the effect of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) on bond strength of fiberglass posts in root canals obturated with different endodontic sealers. Seventy-eight mandibular premolars were obturated with three sealers (n=26): Endofill (END), AH Plus (AHP), and Endosequence BC Sealer (EBS). After preparation of the post space, two subgroups were formed according to the cementation of the posts (n=13): with EDC (EDC), and without EDC (control - CON).

Cone-Beam Computed Tomography Detection of Separated Endodontic Instruments.

Introduction: This study compared the accuracy, sensitivity, and specificity of different imaging diagnostic protocols, cone-beam computed tomography (CBCT) and digital periapical radiography (DPR), in identifying separated endodontic instruments in filled root canals.

Methods: One hundred eight root canals from 36 mandibular molars were prepared and obturated. Of these, 84 were filled without separated instruments, and 24 were filled with the presence of a separated instrument (stainless steel hand file or reciprocating instrument).

Sialometric and Sialochemical Analysis in Individuals With Pulp Stones.

The aim of this study was to analyze the saliva of patients with pulp stones, with sialometric and sialochemical tests. Eighty individuals, aged between18 and 65 years, of both sexes, were investigated. Patients were included in the pulp stone group when radiographic examination was suggestive of pulp stones in at least one permanent tooth, whereas those without this alteration were considered controls.

Association of taste receptor gene polymorphisms with dental caries.

This study was performed to evaluate the interplay between dental caries, nutritional status, and genetic polymorphisms in TAS1R1 and TAS1R2 (taste receptor, type 1, member 1 and 2) in preschool children and pre-adolescents. We included 525 subjects (306 preschool children and 219 pre-adolescents). Parents/caregivers answered a self-administered questionnaire about their children's systemic health, characteristics, oral hygiene habits, and diet.

Effect of Vehicle and Agitation Methods on the Penetration of Calcium Hydroxide Paste in the Dentinal Tubules.

Introduction: The aim of this ex vivo study was to analyze the effect of different vehicles combined with agitation methods on the penetration of calcium hydroxide (CH) paste in the dentinal tubules.

Methods: Sixty freshly extracted, single-rooted human premolars were prepared using WaveOne Gold (Dentsply Sirona, York, PA) and randomized into 6 experimental groups (n = 10) according to the vehicle and method of paste agitation as follows: propylene glycol (PG) + Lentulo, PG + Lentulo + ultrasound, PG + Lentulo + sonic, distilled water (DW) + Lentulo, DW + Lentulo + ultrasonic, and DW + Lentulo + sonic. The CH paste was manipulated with sodium fluorescein dye and was inserted to completely fill the root canal.

Radiofrequency therapy in esthetic dermatology: A review of clinical evidences.

Background: Chronological skin aging causes the modification of genetic material through enzymes and proteins changes. The process reduces cellular proliferation, along with loss of tissue elasticity, reduced ability to regulate aqueous exchanges, and inefficient tissue replication. Appearance is negatively affected by cumulative changes in coloration, texture, and elasticity over time.

The feminization of dentistry and the perceptions of public service users about gender issues in oral health.

It was investigated the perception of service users in relation to the professional practice of dentists, based on gender differences. The Primary Care Assessment Tool (PCATool) was applied to 900 users of the Public Service in Curitiba, PR, Brazil. Sixty clinics were selected using random sampling, divided between conventional Primary Health Care (PHC) Units and PHC with Family Health System Units.

Association between Pulp Stones and Kidney Stones: A Systematic Review and Meta-analysis.

Introduction: A systematic review and meta-analysis were performed to evaluate the association between pulp stones and kidney stones.

Methods: A search for observational studies was performed in PubMed, Scopus, Web of Science, Biblioteca Virtual em Saúde, and the gray literature. The Newcastle-Ottawa Scale for Risk of Bias criteria were used to evaluate the internal quality of the included studies.

Self-Perception of Gerontoism according to Social Support and Family Functionality.

Background: The gerontoism, a neologism adopted here, is a form of discrimination regarding age and can occur in rational, emotional, and behavioral contexts, and could be influenced by many factors. This study aimed to identify if the social support and the family functionality interfere in the self-perception of gerontoism.

Methods: Participants were 376 elderly in good physical and mental condition.

Analysis of reciprocating system real-time torque variation during root canal preparation.

Objective: This study monitored real-time torque variation of the WaveOne Gold (WOG) and Reciproc Blue (RB) during root canal preparation of mandibular molars. Thirty-six mandibular molars were prepared with WOG Primary 25.07 (WOGP, n = 36) and the RB R25 25.

Assessment of public oral healthcare services in Curitiba, Brazil: a cross-sectional study using the Primary Care Assessment Tool (PCATool).

Objectives: To compare two different models of public oral health in primary care services, a so-called family health strategy (FHS), as opposed to non-FHS services designated as 'conventional' healthcare (CHC), regarding the presence and extent of the attributes of 'good' primary healthcare (PHC). The null hypothesis of this study is that the attributes do not differ between the FHS and CHC.

Design: Cross-sectional.

Training and evaluation of professors of dentistry in postgraduate programmes in Brazil.

Introduction: In Brazil, the undergraduate dental education still remains fragmented and dissociated from its social context, with emphasis on the individualistic and private aspects of dental health. This study aimed to analyze the training and development of university professors of dentistry in stricto sensu postgraduate programs in Brazil.

Materials And Methods: Delphi electronic methodology was used within a qualitative-quantitative design to gather data from a panel of 58 experts.

Oral Health Impact Profile and Associated Variables in Southern Brazilian Drug Users.

Background: This study investigated the association between sociodemographic, behavioral, oral health, variables of drug consumption, and the short version of the Oral Health Impact Profile (OHIP-14), in Southern Brazilian drug users.

Methods: In this cross-sectional study, 202 drug users aged 18 or over admitted for treatment at the Institute for Research and Treatment of Alcoholism ( -IPTA) from the municipality of Campo Largo, PR, Brazil, from 2012 to 2014, were involved. They answered a questionnaire and were examined by a calibrated researcher.

Root Preparation of Deciduous Teeth: Efficacy of WaveOne and ProTaper Systems with and without Passive Ultrasonic Irrigation.

Introduction: The aim of this study was to compare root preparation of deciduous teeth with WaveOne Large (WO) and ProTaper F4 (PT) instruments with or without passive ultrasonic irrigation (PUI).

Methods And Materials: Forty-eight deciduous teeth were scanned before and after root preparation and divided in four groups (=12): WO+EDTA (WO); WO+EDTA with PUI (WOPUI); PTF+EDTA (PT); and PT+EDTA with PUI (PTPUI). Root canal enlargement by micro-computed tomography and root canal cleaning by scanning electron microscopy (SEM) were analyzed.

Effectiveness of different final irrigation techniques and placement of endodontic sealer into dentinal tubules.

The aim of this study was to compare two irrigation techniques and four devices for endodontic sealer placement into the dentinal tubules. Ninety-nine single-rooted human teeth were instrumented and allocated to either the control (CO) (n=11) or experimental groups according to the irrigation method: syringe and NaveTip needle (NT) (n=44), and EndoActivator (EA) (n=44). These groups were subdivided according to sealer placement into K-File (KF), lentulo spiral (LS), Easy Clean (EC), and EndoActivator (EA) subgroups.