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BMC Oral Health

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https://www.readbyqxmd.com/read/30180892/morphology-of-palatally-displaced-canines-and-adjacent-teeth-a-3-d-evaluation-from-cone-beam-computed-tomographic-images
#1
Rosalia Leonardi, Simone Muraglie, Salvatore Crimi, Marco Pirroni, Giuseppe Musumeci, Rosario Perrotta
BACKGROUND: The goal of this study was to investigate in patients with unilateral palatally displaced canine (PDC) the morphology of maxillary teeth from cone-beam computed tomography (CBCT) scans both on the PDC side and non-PDC side using a "surface matching" technique. METHODS: CBCT images from 28 patients (mean age 16.04 ± 1.77 years) with unilateral PDC were selected. Each tooth in this study was segmented and then rendered into a 3D model using Mimics Research software and the root length was measured...
September 4, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30176855/associated-factors-to-cervical-dentin-hypersensitivity-in-adults-a-transversal-study
#2
Polyana Matos Alcântara, Nayara Franciele Figueiredo Barroso, Adriana Maria Botelho, Dhelfeson Willya Douglas-de-Oliveira, Patrícia Furtado Gonçalves, Olga Dumont Flecha
BACKGROUND: This cross-sectional study aimed to identify the factors associated to the cervical dentin hypersensitivity (DH) in Brazilian adult population. METHODS: Three hundred and eighty patients (67.2% women and 32.8% men) were assessed by questionnaire and thermal test with ice. Participants marked in a visual analogue scale (VAS) the intensity of pain, and a calibrated examiner (ICC 0.990) measured the scores using a caliper. Pain scores above 0.5 mm were considered sensitive teeth...
September 3, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30165840/bactericidal-effect-of-a-diode-laser-on-enterococcus-faecalis-in-human-primary-teeth-an-in-vitro-study
#3
Shanshan Dai, Gang Xiao, Ning Dong, Fei Liu, Shuyang He, Qingyu Guo
BACKGROUND: In recent years, the diode laser (810 nm) has been used for root canal disinfection, which plays an important role in endodontic therapy. This study was undertaken to evaluate the disinfecting ability of a diode laser in experimentally infected root canals of primary teeth. METHODS: Human retained mandibular primary anterior teeth without apical foramen resorption were selected and contaminated with Enterococcus faecalis for 21 days. The specimens were randomly divided into four groups: the negative group (no treatment), positive group (5...
August 31, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30157834/oral-health-and-health-related-quality-of-life-in-hiv-patients
#4
Vinicius da Costa Vieira, Liliane Lins, Viviane Almeida Sarmento, Eduardo Martins Netto, Carlos Brites
BACKGROUND: Oral health care may improve the health-related quality of life (HRQoL) of HIV/AIDS patients. We aimed to evaluate oral health and HRQoL of HIV/AIDS patients using antiretroviral therapy. METHODS: A cross-sectional study included 120 HIV-infected patients, aged ≥18 years, from February, 2016 to September, 2017. The 36-Item Short Form Health Survey (SF-36) was used to evaluate the HRQoL. We assessed dental caries status using the Decayed, Missing and Filled Teeth (DMFT) index...
August 29, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30157822/comparison-of-glide-paths-created-with-k-files-pathfiles-and-the-proglider-file-and-their-effects-on-subsequent-waveone-preparation-in-curved-canals
#5
Linxia Zheng, Xiongfei Ji, Chengxi Li, Lulu Zuo, Xin Wei
BACKGROUND: The root canal glide path has been recommended as the foundation for a safer root canal preparation. The aim of this study was to compare glide paths created with K-files, PathFiles, and the ProGlider file, and their effects on subsequent WaveOne preparation regarding canal transportation, canal volume increase, apical extruded debris, and working time in curved canals. METHODS: Sixty mesial canals of extracted human mandibular first molars were randomly assigned to the K-file (KF), PathFile (PF) and ProGlider file (PG) groups for glide path preparation...
August 29, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30157818/the-knowledge-and-use-of-population-based-methods-for-caries-detection
#6
Ana Luiza Sarno Castro, Maria Isabel Pereira Vianna, Carlos Maurício Cardeal Mendes
BACKGROUND: Since the 1980s, a wide variety of methods have been proposed to measure dental caries in the population, demonstrating a lack of consensus regarding the procedure that should be used for this purpose. The current study investigated the methods that are known and used by public oral health researchers and professors as well as the reasons that lead to the choice of a particular method. METHOD: In the context of an interview, a questionnaire was administered to public oral health researchers and professors who used caries indices and worked in Salvador and Feira de Santana, Bahia, Brazil from 2005 to 2015...
August 29, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30144810/improved-anchoring-nails-design-and-analysis-of-resistance-ability-tensile-test-and-finite-element-analysis-fea-of-improved-anchoring-nails-used-in-temporomandibular-joint-tmj-disc-anchor
#7
Z H Zhou, X Z Chen, X W Chen, Y X Wang, S Y Zhang, S F Sun, J Z Zhen
BACKGROUND: Anchorage is one of the most important treatments for severe temporomandibular joint disorder (TMD). Anchoring nails have shown great success in clinical trials; however, they can break under pressure and are difficult to remove. In this study, we aimed to evaluate an improved anchoring nail and its mechanical stability. METHODS: The experiment consisted of two parts: a tensile test and finite element analysis (FEA). First, traditional and improved anchoring nails were implanted into the condylar cortical bone and their tensile strength was measured using a tension meter...
August 25, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30143044/characterization-of-oral-polymorphonuclear-neutrophils-in-periodontitis-patients-a-case-control-study
#8
Elena A Nicu, Patrick Rijkschroeff, Eva Wartewig, Kamran Nazmi, Bruno G Loos
BACKGROUND: Maintaining oral health is a continuous and dynamic process that also involves the immune system. Polymorphonuclear neutrophils (PMNs) migrate from blood circulation and become apparent in the oral fluid. Controversies exist regarding the specific role of the oral PMNs (oPMNs) in the presence of chronic oral inflammation, such as periodontitis. In this study we characterized cell counts, activation status, apoptosis, and reactive oxygen species (ROS) generation by oPMNs and circulatory (cPMNs), and the salivary protease activity, in subjects with and without periodontitis...
August 24, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30143043/odontogenic-ameloblast-associated-protein-odam-in-gingival-crevicular-fluid-for-site-specific-diagnostic-value-of-periodontitis-a-pilot-study
#9
Hye-Kyung Lee, Soo Jin Kim, Young Ho Kim, Youngkyung Ko, Suk Ji, Joo-Cheol Park
BACKGROUND: Odontogenic Ameloblast-Associated Protein (ODAM) in gingival crevicular fluid (GCF) can provide evidence of the detachment of junctional epithelium from the tooth surface by periodontitis. This study sought to investigate the ability of ODAM to reflect the severity of periodontitis at a site-specific level; thus whether there was a relationship between clinical diagnostic parameters and the value of ODAM in GCF was analyzed. METHODS: Eight periodontitis patients with various severities were enrolled, and the clinical parameters and samples of GCF were obtained from 44 to 60 sites of each subject...
August 24, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30139349/income-and-wealth-as-correlates-of-socioeconomic-disparity-in-dentist-visits-among-adults-aged-20-years-and-over-in-the-united-states-2011-2014
#10
Alexander Kailembo, Carlos Quiñonez, Gabriela V Lopez Mitnik, Jane A Weintraub, Jennifer Stewart Williams, Raman Preet, Timothy Iafolla, Bruce A Dye
BACKGROUND: Most studies in the United States (US) have used income and education as socioeconomic indicators but there is limited information on other indicators, such as wealth. We aimed to assess how two socioeconomic status measures, income and wealth, compare as correlates of socioeconomic disparity in dentist visits among adults in the US. METHODS: Data from the National Health and Nutrition Examination Survey (NHANES) 2011-2014 were used to calculate self-reported dental visit prevalence for adults aged 20 years and over living in the US...
August 23, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30139339/effects-of-dynamic-aging-on-the-wear-and-fracture-strength-of-monolithic-zirconia-restorations
#11
Işıl Sarıkaya, Yeliz Hayran
BACKGROUND: The purpose of this study is to evaluate the wear and fracture strength of crowns and three-unit partial fixed dental prosthesis (FDP) fabricated using by Bruxzir and Incoris TZI as recently introduced monolithic zirconia materials. METHODS: A total of sixteen crowns and sixteen three-unit FDPs were fabricated using Bruxzir and Incoris TZI (n = 8). All specimens were subjected to a 2-body wear test in a dual axis chewing simulator for 1,200,000 loading cycles against steatite antagonist balls...
August 23, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30134965/polymer-based-dental-filling-materials-placed-during-pregnancy-and-risk-to-the-foetus
#12
Trine Lise Lundekvam Berge, Gunvor Bentung Lygre, Stein Atle Lie, Lars Björkman
BACKGROUND: Tooth-coloured polymer-based dental filling materials are currently the first choice for dental restorative treatment in many countries. However, there are some concerns about their safety. It has been shown that substances known as endocrine disrupters, which might pass through the placental barrier, are released from these materials within the first hours after curing. Thus, the placement of polymer-based dental fillings in pregnant women may put the vulnerable foetus at risk...
August 22, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30134878/the-association-between-nutritive-non-nutritive-sucking-habits-and-primary-dental-occlusion
#13
Hiu Tung Bonnie Ling, Fung Hou Kumoi Mineaki Howard Sum, Linkun Zhang, Cindy Po Wan Yeung, Kar Yan Li, Hai Ming Wong, Yanqi Yang
BACKGROUND: The development of primary dentition can be affected by oral sucking habits. Therefore, this study aims to investigate the association of nutritive and non-nutritive sucking habits with primary dentition development. METHODS: One thousand one hundred and fourteen children aged 2 to 5 years old in Hong Kong were recruited in a cross-sectional study. Information on their nutritive (e.g. breastfeeding and bottle feeding) and non-nutritive sucking habits (e...
August 22, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30126407/association-between-tooth-loss-and-cognitive-impairment-in-community-dwelling-older-japanese-adults-a-4-year-prospective-cohort-study-from-the-ohasama-study
#14
Sho Saito, Takashi Ohi, Takahisa Murakami, Takamasa Komiyama, Yoshitada Miyoshi, Kosei Endo, Michihiro Satoh, Kei Asayama, Ryusuke Inoue, Masahiro Kikuya, Hirohito Metoki, Yutaka Imai, Takayoshi Ohkubo, Yoshinori Hattori
BACKGROUND: Numerous prospective studies have investigated the association between the number of remaining teeth and dementia or cognitive decline. However, no agreement has emerged on the association between tooth loss and cognitive impairment, possibly due to past studies differing in target groups and methodologies. We aimed to investigate the association between tooth loss, as evaluated through clinical oral examinations, and the development of cognitive impairment in community-dwelling older adults while considering baseline cognitive function...
August 20, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30126400/cost-effectiveness-of-molar-single-implant-versus-fixed-dental-prosthesis
#15
Arai Korenori, Kawakami Koji, Teranishi Yuki, Tatsunori Murata, Tanaka-Mizuno Sachiko, Baba Shunsuke
BACKGROUND: This study evaluates the cost-effectiveness of implants (Implant), insurance fixed dental prosthesis (IFDP) and private fixed dental prosthesis (PFDP) for a single intermediate missing tooth in the molar region to calculate the Incremental Cost Effectiveness Ratio (ICER). METHODS: The Markov model for cost-effectiveness analysis of the Implant, IFDP and PFDP was carried over maximum 30 years. The starting age for prosthetic treatment was decided to be 50 years...
August 20, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30126398/effect-of-tp53-rs1042522-on-the-susceptibility-of-patients-to-oral-squamous-cell-carcinoma-and-oral-leukoplakia-a-meta-analysis
#16
Zhen Sun, Wei Gao, Jiang-Tao Cui
BACKGROUND: There are different and inconsistent conclusions regarding the genetic relationship between the human tumor suppressor p53 (TP53) rs1042522 polymorphism and the risk of oral squamous cell carcinoma (OSCC) and oral leukoplakia (OL). Therefore, the aim of the study was to comprehensively reassess this association through the performance of an updated meta-analysis. METHODS: After searching the available databases, we systematically screened and included the eligible case-control studies, which contain the full genotype frequency data of the TP53 rs1042522 polymorphism for both OSCC/OL patients and the negative control groups...
August 20, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30126388/nonsurgical-periodontal-treatment-and-prosthetic-rehabilitation-of-a-renal-transplant-patient-with-gingival-enlargement-a-case-report-with-2-year-follow-up
#17
Chi-Ching Chang, Tai-Min Lin, Chiu-Po Chan, Whei-Lin Pan
BACKGROUND: Drug-induced gingival enlargement is a common condition which can be observed in patients taking immunosuppressive medications following organ transplant surgery. The disfiguring excessive tissue often hinders proper oral hygiene practices, therefore accompanied by periodontitis, tooth mobility, and even pathological tooth migration in extreme cases. This case report presents a conservative treatment protocol for a patient with the aforementioned conditions involving neither surgical nor orthodontic intervention...
August 20, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30103724/the-efficacy-of-platelet-rich-fibrin-as-a-scaffold-in-regenerative-endodontic-treatment-a-retrospective-controlled-cohort-study
#18
Hongbing Lv, Yuemin Chen, Zhiyu Cai, Lishan Lei, Ming Zhang, Ronghui Zhou, Xiaojing Huang
BACKGROUND: Blood Clot (BC) or platelet concentrates have been used as scaffold in regenerative endodontic treatment (RET). The aim of this retrospective study was to compare the performance of platelet-rich fibrin (PRF) with BC in inducing root development and periapical lesion healing after tooth revascularization. METHODS: Five patients receiving RET using PRF as a scaffold were matched 1:1 to a previous cohort of 5 patients who underwent tooth revascularization by provoking periapical bleeding...
August 13, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30092796/the-effect-of-bitewing-radiography-on-estimates-of-dental-caries-experience-among-children-differs-according-to-their-disease-experience
#19
L A Foster Page, D Boyd, K Fuge, A Stevenson, K Goad, D Sim, W M Thomson
BACKGROUND: Radiography is a regularly used and accepted adjunct to visual examination in the diagnosis of dental caries. It is assumed that not using radiographs can lead to underestimation of dental caries experience with most reports having involved studies of young adults or adolescents, and been focused on the permanent dentition. The aim of this study was to determine the relative contributions of bitewing radiography and clinical examination in the detection of dental caries in primary molars and to determine whether those contributions differ according to caries experience...
August 9, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/30092795/somatosensory-profiles-of-patients-with-chronic-myogenic-temporomandibular-disorders-in-relation-to-their-paindetect-score
#20
C Welte-Jzyk, D B Pfau, A Hartmann, M Daubländer
BACKGROUND: The purpose of this study was to characterize patients with chronic temporomandibular disorders (TMD) in terms of existing hyperalgesia against cold, heat and pressure. METHODS: The extent of hyperalgesia for pressure and thermal sensation in TMD patients was determined by the use of the painDETECT questionnaire ("Is cold or heat in this area occasionally painful?" "Does slight pressure in this area, e.g., with a finger, trigger pain?") and experimental somatosensory testing against thermal and pressure stimuli (Quantitative Sensory Testing; QST)...
August 9, 2018: BMC Oral Health
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