Publications by authors named "Mattos N"

Background: Human sexual dimorphism is associated with many biological characteristics, including dental variables.

Objectives: To investigate if molars fused roots present sex-associated differences.

Methods: Panoramic radiographs were used to investigate the frequency and distribution of permanent molars fused roots.

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Background: Genetic polymorphisms have been shown to influence several physiological traits, including dental and craniofacial characteristics. Understanding the clinical relevance of genetic polymorphisms in dental practice is crucial to personalize treatment plans and improve treatment outcomes.

Objective: to evaluate the association between dental age and genetic polymorphisms in genes encoding estrogen receptors alpha and beta (ESR1 and ESR2, respectively) in a sample of Brazilian children.

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Background: Endodontic diagnosis can be compared to a puzzle, requiring the interpretation of a series of clinical and imaging data. Mobile health, especially mobile application (apps), can assist professionals in endodontic diagnosis. This work aims to evaluate an app - Endo 10 app, designed to assist pulpal and periapical diagnosis based on the patient's signs and symptoms and radiographic data.

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Background: This study aimed to evaluate the prevalence of retained primary teeth (RPT) associated with delayed permanent tooth eruption and the factors associated with this condition in German children.

Methods: This is a cross-sectional retrospective study that evaluated panoramic radiographs from orthodontic patients. The diagnosis of RPT was established according to Nolla developmental stage.

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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).

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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.

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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.

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Peripheral facial palsy (PFP) is an inflammation of the facial nerve, which paralyses the face unilaterally or bilaterally, causing pain and discomfort to the patient. PFP affects the lives of compromised individuals not only due to the loss of essential facial functions (smiling, blinking, talking) but also their emotional state. When the face is paralysed, the lost ability to animate the face can be devastating and is often associated with depression, social isolation, and reduced quality of life.

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Objective: The aim of this double-blind, randomized clinical trial was to evaluate the 6- and 18-month clinical performances of a new universal adhesive applied in the "no-waiting" (NW) technique to non-carious cervical lesions (NCCLs) using two evaluation criteria.

Materials And Methods: One hundred and seventy-six restorations were assigned to four groups according to the adhesive system, adhesive strategy, and application mode: Prime&Bond Active (PB) applied using the etch-and-rinse (ER) and self-etch (SE) strategies with 20 s applications and Clearfil Universal Bond Quick (CQ) applied using the ER and SE strategies with the NW technique. The composite resin restorations were evaluated at baseline and after 6 and 18 months using the World Dental Federation (FDI) and US Public Health Service (USPHS) criteria.

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The study aimed to explore the influence of genetic polymorphisms in ANKK1 and DRD2 on the signs and symptoms of temporomandibular disorder (TMD) in construction workers. This cross-sectional study included only male subjects. All construction workers were healthy and over 18 years age.

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Aim: The aim of the study was to compare the ability of three endodontic sealers, Endofill (END), AH Plus (AHP), and Sealer Plus BC (SPB), to penetrate dentinal tubules.

Materials And Methods: Forty-five human teeth, single-rooted and previously instrumented mandibular premolars, were randomly divided into three experimental groups ( = 15): END ( = 15), AHP ( = 15), and SPB ( = 15). After obturation, dental sections were performed horizontally, at 2 and 5 mm from the root apex.

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The present study aimed to evaluate if functional genetic polymorphisms in vitamin-D-related genes are associated with third molar agenesis and third molar microdontia in German orthodontic patients. Pre-orthodontic and follow-up treatment records were evaluated for phenotype definition. Saliva samples were collected for DNA extraction.

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To investigate the genetic association in a sample of replanted teeth, it is necessary to observe the extreme phenotypes, such as, teeth that underwent functional healing and those extracted due to severe external root resorption. Thus, this study aimed to investigate the association of age of the patients, root development, storage media, and polymorphisms in the interleukin 4 (IL4) and interleukin 6 (IL6) genes with teeth that presented extreme outcomes, as functional healing or extraction, in a group whose replantation techniques did not follow the International Association of Dental Traumatology (IADT) 2012 guidelines. Forty-three avulsed and replanted teeth that did not follow IADT 2012 guidelines and underwent functional healing or were extracted were included.

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Background: C-reactive protein (CRP) is an inflammation biomarker that can be a predictor of adverse events in cardiovascular procedures. Its use in the assessment of long-term prognosis of transcatheter aortic valve implantation (TAVI) is still incipient.

Objective: To evaluate CRP as a prognostic marker in the first year after TAVI in aortic stenosis (AoS).

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Metronidazole (MT) is an important drug available for infection treatment. However, in the past few years, this drug has presented effective reduction for infection control, one of the most important reasons is attributed to the reduction of retention time in the stomach environment. Mucoadhesive nanostructured polyelectrolyte complexes (nano PECs) based on chitosan (CS) and hypromellose phthalate (HP) were rationally developed using a full factorial design (2 × 2 × 3), for the incorporation of MT based on the enhancement of the antimicrobial potential against active , in the stomach.

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The aim was to determine whether there is a difference in the periodontal aspect (gingival recession, probing pocket depth) of the palatally displaced canine (PDC) compared to the contralateral canine. Also, from a surgical perspective, sought to determine whether there is a difference (surgical duration, postoperative pain) between the surgical techniques. The word combinations were adapted for each electronic database: PubMed, LILACS, Scopus, Web of Science, Cochrane Library and gray literature.

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Background: Transcatheter aortic valve implantation has become an option for high-surgical-risk patients with aortic valve disease.

Objective: To evaluate the in-hospital and one-year follow-up outcomes of transcatheter aortic valve implantation.

Methods: Prospective cohort study of transcatheter aortic valve implantation cases from July 2009 to February 2015.

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Hyperandrogenic syndromes include diseases that manifest through an increased biological activity of androgens and that can originate from neoplastic or functional diseases. Androgen-secreting ovarian tumors represent about 1% of ovarian neoplasias. Steroid cell tumors are among the more rare types which account for less than 0.

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This study focused on the under-five population of the Alto Xingu region in Brazil, with the following objectives: (1) to evaluate height and weight increment from the first through the fourth years of life and (2) to compare nutritional status in 1980 and 1992. Height and weight increases were evaluated in 81 children. Weight and height were measured in 264 children evaluated in 1980 and in 172 in 1992 (< 10 years of age).

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We performed this prospective cohort study to correlate the findings of left ventricular angiography (LVA) and NOGA left ventricular electromechanical mapping (LVEM) in the evaluation of cardiac wall motion and also to establish standards for wall motion assessment by LVEM. Fifty-five patients (35 men; mean age, 60.4 +/- 11.

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Background And Aims: Dyspepsia is a common complaint that may signal the presence of diseases like cancer or peptic ulcer. The aim of our study was to assess if the clinical patterns of dyspepsia can be considered a valid guideline for the appropriate use of endoscopy.

Methods: According to the symptomatological patterns, our 243 patients were defined as sufferers from: ulcer-like (93 patients), reflux-like (25) and dismotility-like dyspepsia (125).

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