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https://www.readbyqxmd.com/read/28066812/the-denture-associated-oral-microbiome-in-health-and-stomatitis
#1
Baochen Shi, Tingxi Wu, Jeffrey McLean, Anna Edlund, Youngik Young, Xuesong He, Hongyang Lv, Xuedong Zhou, Wenyuan Shi, Huiying Li, Renate Lux
While investigation of the microbiome on natural oral surfaces has generated a wealth of information, few studies have examined the microbial communities colonizing dentures and their relationship to oral health. To address this knowledge gap, we characterized the bacterial community associated with dentures and remaining teeth in healthy individuals and patients with denture stomatitis. The microbiome compositions of matched denture and tooth plaque samples of 10 healthy individuals and 9 stomatitis patients were determined by 16S rRNA gene pyrosequencing...
November 2016: MSphere
https://www.readbyqxmd.com/read/28042280/advancements-in-all-ceramics-for-dental-restorations-and-their-effect-on-the-wear-of-opposing-dentition
#2
REVIEW
Haroon Rashid, Zeeshan Sheikh, Syed Misbahuddin, Murtaza Raza Kazmi, Sameer Qureshi, Muhammad Zuhaib Uddin
Tooth wear is a process that is usually a result of tooth to tooth and/or tooth and restoration contact. The process of wear essentially becomes accelerated by the introduction of restorations inside the oral cavity, especially in case of opposing ceramic restorations. The newest materials have vastly contributed toward the interest in esthetic dental restorations and have been extensively studied in laboratories. However, despite the recent technological advancements, there has not been a valid in vivo method of evaluation involving clinical wear caused due to ceramics upon restored teeth and natural dentition...
October 2016: European Journal of Dentistry
https://www.readbyqxmd.com/read/28035689/oral-health-of-children-with-attention-deficit-hyperactivity-disorder
#3
Yvonne C Y Chau, Kelly Y C Lai, Colman P J McGrath, Cynthia K Y Yiu
This study assessed and compared oral health and oral-health behaviours among children with and without attention deficit hyperactivity disorder (ADHD). The study included 31 children, 12-18 yr of age, with ADHD and 31 age- and gender-matched children without ADHD. Clinical data were recorded by a trained and calibrated examiner for caries, traumatic dental injuries, periodontal health, tooth wear, and salivary function. A questionnaire was also given to parents or caregivers about the oral health habits and behaviours of these children...
December 30, 2016: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28035661/evidence-of-toothpick-groove-formation-in-neandertal-anterior-and-posterior-teeth
#4
Almudena Estalrrich, José Antonio Alarcón, Antonio Rosas
OBJECTIVES: During the microscopic examination of the Neandertal dentitions from El Sidrón (Spain) and Hortus (France), we found unusual fine parallel microstriations on the mesial and distal sides of all tooth types, near the cervix. As its appearance was similar to toothpick grooves described in other Homo species, it could correspond to early stages on its formation. To test this hypothesis we developed an experimental replication of a groove using grass stalks. MATERIALS AND METHODS: Comparisons between 204 isolated Neandertal teeth and the two experimental dental specimens corroborate that the marks correspond to initial stages of toothpick groove formation, and we propose a five-grade recording scale that summarized the groove formation process...
December 30, 2016: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28032898/age-related-morphological-histological-and-functional-changes-in-teeth
#5
REVIEW
Thiago Saads Carvalho, Adrian Lussi
Throughout lifetime, the teeth are continuously exposed to numerous chemical and physical impacts, which cause the wear of the dental hard tissues, gingival recession and other oral changes with sometimes subsequent problems. Age-related wear of tooth surfaces reduce the dental enamel thickness and expose deeper layers of enamel, which have different physical and chemical properties than the surface enamel. Gingival recession is the main causal factor of root caries and dentine hypersensitivity. Age-related changes in dentine include the formation of secondary dentine and the reduction of tubular lumen diameter (dentine sclerosis), which lead to a reduction in the volume of the pulp chamber...
December 29, 2016: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28018570/immediate-fixed-partial-denture-after-tooth-extraction-in-patients-with-systemic-diseases-a-clinical-report
#6
Hyun Sun Kang, Su Young Lee
For patients with systemic diseases who face difficulties visiting dental clinics, wearing fixed partial denture in the anterior region on the same day of tooth extraction can reduce the total period of treatment and the number of visits, as well as post-treatment psychological effect on the patient.
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/27981411/prevalence-of-erosive-lesions-with-respect-to-risk-factors-in-a-young-adult-population-in-poland-a-cross-sectional-study
#7
Izabela Strużycka, Adrian Lussi, Agnieszka Bogusławska-Kapała, Ewa Rusyan
OBJECTIVE: The study was conducted to investigate the prevalence of erosive lesions and related risk factors in the population of 18-year-old young adults in Poland. MATERIALS AND METHODS: Calibrated examiners measured erosive tooth wear according to Basic Erosive Wear Examination (BEWE) scoring system in 1869 patients and assessed the impact of risk factors with a questionnaire. RESULTS: Erosion was present in 42.3% of the patients. Early damage to the enamel was the most frequent finding (BEWE 1)-28...
December 15, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27980334/orthodontic-retention-to-have-and-to-hold
#8
Anmol S Kalha
Data sourcesCochrane Oral Health Group's Trials Register, Cochrane Central Register of Controlled Trials (CENTRAL), Medline, Embase, US National Institutes of Health Trials Registry and The World Health Organization (WHO) Clinical Trials Registry Platform, abstracts from the British Orthodontic Conference, the European Orthodontic Conference and the International Association for Dental Research (IADR) from 2011 to 2015 and the bibliographies of identified studies.Study selectionRandomised controlled trials (RCTs) involving children and adults who had had retainers fitted or adjunctive procedures undertaken to prevent relapse following orthodontic treatment with braces were considered...
December 2016: Evidence-based Dentistry
https://www.readbyqxmd.com/read/27974573/dietary-adaptions-in-the-ultrastructure-of-dinosaur-dentine
#9
Kirstin S Brink, Yu-Cheng Chen, Ya-Na Wu, Wei-Min Liu, Dar-Bin Shieh, Timothy D Huang, Chi-Kuang Sun, Robert R Reisz
Teeth are key to understanding the feeding ecology of both extant and extinct vertebrates. Recent studies have highlighted the previously unrecognized complexity of dinosaur dentitions and how specific tooth tissues and tooth shapes differ between taxa with different diets. However, it is unknown how the ultrastructure of these tooth tissues contributes to the differences in feeding style between taxa. In this study, we use third harmonic generation microscopy and scanning electron microscopy to examine the ultrastructure of the dentine in herbivorous and carnivorous dinosaurs to understand how the structure of this tissue contributes to the overall utility of the tooth...
December 2016: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/27939655/a-new-in-situ-model-to-study-erosive-enamel-wear-a-clinical-pilot-study
#10
Jan Ruben, Gert-Jan Truin, Ewald M Bronkhorst, Marie Charlotte D N J M Huysmans
OBJECTIVES: To develop an in situ model for erosive wear research which allows for more clinically relevant exposure parameters than other in situ models and to show tooth site-specific erosive wear effect of an acid challenge of orange juice on enamel. METHODS: This pilot study included 6 edentulous volunteers wearing full dentures with 13 embedded enamel samples The study consisted of two control runs: habitual diet only for 30days, and two experimental runs: habitual diet plus 125ml orange juice four times per day (consumed over 4m)...
December 7, 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27928242/dental-management-of-a-child-with-dentinogenesis-imperfecta-a-case-report
#11
Najmeh Akhlaghi, Ali-Reza Eshghi, Mehrnaz Mohamadpour
Dentinogenesis imperfecta (DI) is a hereditary dentin defect caused by an autosomal dominant mutation in dentin sialophosphoprotein gene. Defective dentin development results in discolored teeth that are prone to wear and fracture. Early diagnosis and proper treatment are necessary to achieve better functional and esthetic results and minimize nutritional deficiencies and psychosocial distress. In order to prevent excessive loss of tooth structure, placement of stainless steel crowns (SSCs) on deciduous and young permanent posterior teeth is recommended as soon as such teeth erupt...
March 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/27927887/surface-sensitive-microwear-texture-analysis-of-attrition-and-erosion
#12
S Ranjitkar, A Turan, C Mann, G A Gully, M Marsman, S Edwards, J A Kaidonis, C Hall, D Lekkas, P Wetselaar, A H Brook, F Lobbezoo, G C Townsend
Scale-sensitive fractal analysis of high-resolution 3-dimensional surface reconstructions of wear patterns has advanced our knowledge in evolutionary biology, and has opened up opportunities for translatory applications in clinical practice. To elucidate the microwear characteristics of attrition and erosion in worn natural teeth, we scanned 50 extracted human teeth using a confocal profiler at a high optical resolution (X-Y, 0.17 µm; Z < 3 nm). Our hypothesis was that microwear complexity would be greater in erosion and that anisotropy would be greater in attrition...
December 7, 2016: Journal of Dental Research
https://www.readbyqxmd.com/read/27927084/tooth-wear-and-sleep-quality-a-study-of-police-officers-and-non-police-officers
#13
Junia Maria Serra-Negra, Marcos Simões Aquino, Maria Elisa Sousa Silva, Mauro Henrique Abreu, Rodrigo Richard Silveira
OBJECTIVE: A cross-sectional study was performed to assess the prevalence of tooth wear facets and sleep disorders. METHODS: The sample was divided into two groups: Group I: police officers (n = 144), and Group II: industrial workers (n = 142). A self-reported questionnaire, a clinical examination recorded in the dental records, and the Brazilian version of the Pittsburgh Sleep Questionnaire Index were used for data collection. Descriptive analysis, chi-squared and multiple logistic regression were used as statistical tests at a 5% significance level...
December 8, 2016: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/27908460/influence-of-oral-hygiene-and-its-interaction-with-standard-of-education-on-the-risk-of-oral-cancer-in-women-who-neither-smoked-nor-drank-alcohol-a-hospital-based-case-control-study
#14
F Chen, B-C He, L-J Yan, Y Qiu, L-S Lin, L Cai
We know of only limited data about the role of oral hygiene and the risk of oral cancer with different standards of education. The aim of this study was to assess the association between oral hygiene and risk of oral cancer, with stratification by standard of education, in Chinese women. We organised a case-control study with 250 women with oral cancer and 996 age-matched controls in Fujian, China. Data were collected by personal interview using a structured questionnaire. We used unconditional logistic regression with stratification by educational standard to estimate the odds ratios (OR) and 95% CI...
November 28, 2016: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/27891489/techniques-to-evaluate-dental-erosion-a-systematic-review-of-literature
#15
REVIEW
Mahasweta Joshi, Nikhil Joshi, Rahul Kathariya, Prabhakar Angadi, Sonal Raikar
This article reviews different techniques for evaluating dental erosion, weighs the advantages and disadvantages of these techniques, and presents the latest trends in the study of dental erosion. In May 2014, an initial search was carried out in the PubMed/MEDLINE database of indexed journals from 1975 to 2013 using the following keywords: dental erosion; dental erosion In-vitro; and dental erosion in-vivo. Bibliographic citations from the papers found were then used to find other useful sources. The authors categorize the techniques into three classes: in-vitro, in-vivo and in-vitro/in-vivo...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27871711/comparisons-of-tooth-sizes-dental-arch-dimensions-tooth-wear-and-dental-crowding-in-amazonian-indigenous-people
#16
David Normando, Hellen Gabriela de Almeida Santos, Cátia Cardoso Abdo Quintão
INRODUCTION: Our objective was to assess tooth wear, arch dimensions, tooth sizes, and dental crowding in 4 remote indigenous villages on the Xingu River in Brazil. These populations have similar patterns of dietary habits and practice exclusive breast-feeding, whereas studies in human genetics show large intertribal genetic distances and low intratribal variations. METHODS: Dental casts of 107 subjects in the permanent dentition were evaluated. Tooth wear, arch dimensions, mesiodistal tooth widths, and the irregularity index of the incisors were obtained and compared using analysis of variance or the Kruskal-Wallis test (P <0...
November 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27871014/tooth-wear-pattern-analysis-in-a-sample-of-italian-early-bronze-age-population-proposal-of-a-3-d-sampling-sequence
#17
Sabrina Masotti, Nika Bogdanic, Julie Arnaud, Franco Cervellati, Emanuela Gualdi-Russo
OBJECTIVE: The purpose of this study was to assess the prevalence, distribution and intensity of tooth wear in a sample of an ancient Italian population in order to explain the pattern in terms of dietary habits and/or non-dietary tooth-use behaviors during the Early Bronze Age, with a focus on possible age-group and sex differences. DESIGN: Well-preserved permanent teeth of individuals from the Bronze Age site of Ballabio (Lecco) in northern Italy were examined for tooth wear by different methods...
February 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/27870037/chronic-wasting-disease-in-white-tailed-deer-infection-mortality-and-implications-for-heterogeneous-transmission
#18
Michael D Samuel, Daniel J Storm
Chronic wasting disease (CWD) is a fatal neurodegenerative disease affecting free-ranging and captive cervids that now occurs in 24 U.S. states and two Canadian provinces. Despite the potential threat of CWD to deer populations, little is known about the rates of infection and mortality caused by this disease. We used epidemiological models to estimate the force of infection and disease-associated mortality for white-tailed deer in the Wisconsin and Illinois CWD outbreaks. Models were based on age-prevalence data corrected for bias in aging deer using the tooth wear and replacement method...
November 2016: Ecology
https://www.readbyqxmd.com/read/27861960/a-comparison-between-published-clinical-success-of-direct-resin-composite-restorations-in-vital-posterior-teeth-in-1995-2005-and-2006-2016-periods
#19
REVIEW
Negin Alvanforoush, Joseph Palamara, Rebecca Wong, Michael F Burrow
BACKGROUNDS: Composites are increasing in popularity as restorative materials. This growing role indicates the necessity of studies on their clinical outcome. METHODS: Clinical studies published on the performance of posterior composite restorations were included except those of less than a 24-month assessment period. Results of non-vital, anterior or primary teeth and cervical-single-surface restorations were also excluded. Records about composite type, number of final recall restorations, failure/survival rate, and assessment period and failure reasons were analyzed for each decade...
November 16, 2016: Australian Dental Journal
https://www.readbyqxmd.com/read/27856311/timing-of-dietary-acid-intake-and-erosive-tooth-wear-a-case-control-study
#20
Saoirse O'Toole, Eduardo Bernabé, Rebecca Moazzez, David Bartlett
OBJECTIVES: There is a lack of clinical data on the impact of timing of dietary acid intake and toothbrush abrasion when attempting to control erosive tooth wear progression. The aim of this study was to estimate the association of theoretical causative factors with erosive tooth wear to inform evidence-based guidelines. METHODS: Using case-control study design, 300 participants with dietary erosive tooth wear and 300 age-matched controls were recruited from the restorative clinics of King's College London Dental Institute...
January 2017: Journal of Dentistry
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