30 results match your criteria: "Medical and Dental Center[Affiliation]"

Reconsideration of the horizontal tube-shifting technique in the intraoral radiography of maxillary molars.

Oral Radiol

December 2024

Department of Oral Radiology, School of Dentistry, Asahi University, 1851 Hozumi, Mizuho-Shi, Gifu, 501-0296, Japan.

Objective: The horizontal tube-shifting technique can be adopted to separate overlapping buccal roots of the maxillary molar from the palatal root. A simulation study was performed to determine an appropriate tube-shift angulation when adopting three-dimensional computed tomography imaging.

Methods: Cone-beam computed tomography images of 21 volunteers were used for simulation.

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Purpose: Evaluating the bone mineral density (BMD) of alveolar bone is useful for dental treatments. The DentalSCOPE is an image analysis system developed to evaluate the BMD of alveolar bone. The aim of this study was to evaluate the relationship between cross-sectional anatomical size and BMD value.

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Size, shape, alignment, and arrangement-4 steps to optimize dentofacial composition in smile design by using the patient-centered concept: A dental technique.

J Prosthet Dent

June 2024

Professor, Post-Graduate Program in Dentistry, School of Health and Life Sciences, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Rio Grande do Sul, Brazil.

A technique derived from patient-based outcomes is described for planning and determination of dental morphology in esthetic rehabilitation by direct evaluation in the mouth, with the help of the patient, and based on the definitive simulation results. The technique is focused on identification of a tooth arrangement to provide the most harmonious dentofacial composition based on size, shape, alignment, and arrangement, with input from the patient. A clinical treatment is presented to illustrate the use of the technique.

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Background: Little is known about a synergistic effect of periodontitis and obesity on systemic biomarkers and a possible effect periodontal treatment may exert. This study aimed to evaluate the impact of periodontitis and periodontal treatment on systemic inflammation and metabolic profile in obese and non-obese rats.

Methods: Sixty male Wistar rats were randomly divided in six groups differentiated by diet and periodontal status: no periodontitis (G1 and G4), untreated ligature-induced periodontitis (G2 and G5), and treated ligature-induced periodontitis (G3 and G6).

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Oral Inflammatory Burden and Carotid Atherosclerosis Among Stroke Patients.

J Endod

May 2022

Graduate Program in Dentistry, School of Health and Life Sciences, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Medical and Dental Center of the Military Police of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.

Article Synopsis
  • This study investigates the link between oral inflammatory burden (OIB) and carotid atherosclerotic burden (CAB) in patients who have experienced ischemic stroke (IS) or transient ischemic attack (TIA).
  • A total of 240 hospital patients were analyzed, focusing on dental conditions like apical periodontitis and root canal treatment, to determine their relationship with the severity of CAB.
  • Results indicate that higher levels of OIB correlate with increased CAB, suggesting a significant interaction between oral and cardiovascular health that merits further exploration.
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Aim: To evaluate the impact of the presence and treatment of periodontal disease (PD) and apical periodontitis (AP) on the aorta and liver of obese and non-obese rats.

Methodology: One hundred and forty Wistar rats were divided into two groups, according to the diet administered: normal diet (-n), without obesity; and cafeteria diet (-c), with induced obesity. These groups were divided into seven subgroups according to the specific experimental protocols: naïve control (NC); AP; AP with treatment (APt); PD; PE with treatment (PDt); AP and PD (APPD); and AP and PD with treatment (APPDt).

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Number of teeth is independently associated with ischemic stroke: A case-control study.

J Clin Neurosci

August 2021

Graduate Program in Dentistry, School of Health and Life Sciences, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil; Medical and Dental Center of the Military Police of Rio Grande do Sul, Brazil. Electronic address:

Article Synopsis
  • - The study investigated the link between the number of permanent natural teeth and the risk of ischemic stroke (IS) or transient ischemic attack (TIA) in a southern Brazilian population, involving 458 participants.
  • - Participants included 229 individuals with IS or TIA (cases) and 229 without cardiovascular disease (controls), matched by age and sex, with assessments using advanced imaging techniques.
  • - Results indicated that fewer natural teeth were associated with a higher risk of IS or TIA, along with factors like hypertension and smoking, suggesting oral health may play a significant role in cardiovascular events.
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Endodontics has gained emphasis in the scientific community in recent years due to the increase in clinical and in animal models studies focused on endodontic medicine, which aims to evaluate the interrelationship between systemic and periapical tissues pathological conditions. These studies have shown that systemic changes can boost the pathogenesis of endodontic infection, favoring its development and progression. A contrary relationship is reported in numerous studies that affirm the potential of endodontic infection to trigger systemic damage and may lead to the worsening of pre-existing pathologies.

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Background: Apical periodontitis (AP) frequently presents as a chronic asymptomatic disease. To arrive at a true diagnosis, in addition to the clinical examination, it is mandatory to undertake radiographic examinations such as periapical or panoramic radiographs, or cone-beam computed tomography (CBCT). Thus, the worldwide burden of AP is probably underestimated or unknown.

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Tooth loss is associated with atherosclerosis and a poorer functional outcome among stroke patients.

Clin Oral Investig

December 2020

Graduate Program in Dentistry, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, 6681 Av. Ipiranga, prédio 6, 90619900, Porto Alegre, RS, Brazil.

Objectives: The purpose of the study was twofold: (1) to test the hypothesis that tooth loss is independently associated with carotid atherosclerotic burden (CAB) among individuals with ischemic stroke (IS) or transient ischemic attack (TIA) and (2) to test the association between tooth loss and disability following the occurrence of cerebral ischemia.

Materials And Methods: This observational study included 418 patients with IS or TIA. Tooth loss and the CAB were measured through a head and neck multidetector computed tomography angiography.

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This cross-sectional study investigated the relationship between Oral Assessment Guide (OAG) scores and malnutrition in newly hospitalized patients. A total of 880 hospitalized adults were enrolled. Hypoalbuminemia was defined as serum albumin less than 3.

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Objective: To determine the association between cheek-biting and depression in patients visiting dental clinics for routine check-up..

Methods: The case-control study was conducted at Ameen Medical and Dental Centre, Karachi, from July 2016 to January 2017, and comprised patients coming for routine dental check-up with complaint of pain and burning in oral cavity.

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Background/aim: Dental trauma is a public health issue with a high prevalence in children. The aim of this study was to evaluate the level of knowledge of dentists in Rio Grande do Sul, Brazil, of the management of traumatic dental injuries, using the International Association of Dental Traumatology (IADT) Guidelines as a reference.

Materials And Methods: An electronic questionnaire investigating personal and professional characteristics and 12 questions about dento-alveolar trauma, was sent to all registered dentists of the Regional Council of Dentistry of Rio Grande do Sul (n=14 753).

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The assessment of root canal curvature is essential for clinical and research purposes. This systematic review presents an overview of the published techniques for the measurement of root canal curvature features using imaging and to provide a critique of their clinical application. A database search in PubMed, PubMed Central, Embase, Scopus, EBSCO Dentistry & Oral Sciences Source and Virtual Health Library was conducted, using appropriate key words to identify measurement methods for root canal curvatures.

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Aim: To evaluate the association between chronic oral inflammatory burden (OIB) - as the combination of periodontal and endodontic disease load - and physical fitness.

Methodology: One hundred and twelve nonsmoker male police officers who performed a standardized physical fitness test (PFT) were analysed. Participants underwent oral clinical and periapical radiographic examinations.

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Aim: To determine the prevalence of preoperative endodontic pain (PREP) and the incidence of postoperative endodontic pain (POEP), identifying the predictors of PREP and POEP in a southern Brazilian subpopulation, using clinical data from an electronic chart database (ECD).

Methodology: This retrospective observational study included 563 consecutive individuals presenting for root canal treatment (RCT). Patients were treated by undergraduate and graduate students, following standard RCT protocols.

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Aim: To evaluate whether the presence of apical periodontitis (AP), root canal treatment (RCT) and endodontic burden (EB) - as the sum of AP and RCT sites - were associated with long-term risk of incident cardiovascular events (CVE), including cardiovascular-related mortality, using data on participants in the Baltimore Longitudinal Study of Ageing (BLSA).

Methodology: This retrospective cohort included 278 dentate participants in the BLSA with complete medical and dental examinations. Periodontal disease (PD) and missing teeth were recorded.

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Introduction: This systematic review and meta-analysis investigated evidence to support whether apical periodontitis (AP) can modify the systemic levels of inflammatory markers (IM) in humans.

Methods: The MEDLINE, Embase, Cochrane, and PubMed databases were searched between 1948 and 2012, with no language restriction. Additionally, the bibliography of all relevant articles and textbooks were manually searched.

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Coronal leakage is an important factor affecting the outcome of endodontic therapy. This study evaluated the microbial leakage (ML) and the apical inflammatory response (AIR) in dog's teeth after root canal filling with three endodontic sealers, post preparation and exposure to the oral environment, testing the hypothesis that there is a positive correlation between these two histological parameters (ML and AIR). Sixty-four root canals of 8 mongrel dogs were cleaned, shaped and randomly distributed into groups according to the sealer to be used: Sealer 26 (n=18); AH Plus (n=18); RoekoSeal (n=19); no sealer - control group (n=9).

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Objectives: To examine the effect of operative and restorative treatment of dental caries on the levels of caries associated microorganisms in saliva and to relate alterations to the type and extent of treatment.

Design: Longitudinal.

Setting: Paediatric Dentistry Department at a central hospital in Sweden.

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The aim of this study was to evaluate interdental caries incidence and progression in relation to the effect of antibacterial varnish treatments in schoolchildren anticipated at caries risk. After a screening procedure, 110 healthy children (8-10 years) with moderate and high counts of salivary mutans streptococci (MS) were invited to join a 2-year longitudinal study. At baseline, MS were enumerated at all mesial interdental sites of the first permanent molars with a chair-side technique.

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Fluoride concentration in whole saliva and in separate gland secretions was studied after a 7-day fluoridated milk regimen (1mg F per day) in 12 healthy schoolchildren aged 10-13 years. A 2-week fluoride-free run-in period preceded the tests in order to establish the endogenous baseline levels. Unstimulated and stimulated whole saliva and stimulated parotid and submandibular-sublingual saliva were collected at 1, 3, 6, 12 and 24h after F-milk ingestion, and fluoride concentrations were determined with an ion-selective electrode.

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Objective: The aim of this two-year community demonstration trial was to study the caries inhibitory effects of semiannual applications of a fluoride varnish in preschool children.

Methods: Twenty-four public dental health clinics in the county of Halland, Sweden, with 5,137 preschool children, 4 and 5 years of age, were matched and equally allocated to a fluoride varnish group (n = 2,535) and a reference group (n = 2,602). The children in the fluoride varnish group were treated every six months with topical applications of a silane fluoride varnish, Fluor Protector (0.

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The aim was to study the effect of a chlorhexidine/thymol-containing varnish (Cervitec) on the levels of prostaglandin E2 (PGE2) in gingival crevicular fluid (GCF). The material consisted of 25 adolescents and young adults with fixed orthodontic appliances exhibiting gingival inflammation. Four buccal sites, adjacent to bands and brackets, were selected on each patient and randomly treated with either a varnish containing chlorhexidine diacetate (1% w/w) and thymol (1% w/w) or a placebo varnish without active ingredients.

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