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https://www.readbyqxmd.com/read/29351752/prevalence-of-gingivitis-and-calculus-in-12-year-old-puerto-ricans-a-cross-sectional-study
#1
Augusto R Elias-Boneta, Karol Ramirez, Sona Rivas-Tumanyan, Margarita Murillo, Milagros J Toro
BACKGROUND: Gingivitis is a common oral health problem. Untreated gingivitis may progress to periodontitis, a common cause of tooth loss. The prevalence of gingivitis and calculus among Puerto Rican children is unknown. Understanding this prevalence can support early public health preventative strategies. This study aims to estimate the prevalence of gingivitis and calculus among 12-year-old Puerto Ricans by health region and to explore differences in distribution by school type (proxy for socio-economic status) and gender...
January 19, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/29349893/is-overweight-obesity-a-risk-factor-for-periodontitis-in-young-adults-and-adolescents-a-systematic-review
#2
REVIEW
S Khan, G Barrington, S Bettiol, T Barnett, L Crocombe
BACKGROUND: Obesity in young adults and adolescents is associated with chronic co-morbidities. This project investigated whether being overweight or obese is a risk factor for periodontitis in adolescents (13-17 years) and young adults (18-34 years). METHODS: A search of 12 databases was conducted using Medical Subject Headings/Index and Emtree terms. Based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses, articles published between 2003 and 2016 were screened that reported periodontal and anthropometric measures...
January 19, 2018: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29347670/comment-on-troublesome-aspects-of-the-renyi-maxent-treatment
#3
Thomas Oikonomou, G Baris Bagci
Plastino et al. [Plastino et al., Phys. Rev. E 94, 012145 (2016)1539-375510.1103/PhysRevE.94.012145] recently stated that the Rényi entropy is not suitable for thermodynamics by using functional calculus, since it leads to anomalous results unlike the Tsallis entropy. We first show that the Tsallis entropy also leads to such anomalous behaviors if one adopts the same functional calculus approach. Second, we note that one of the Lagrange multipliers is set in an ad hoc manner in the functional calculus approach of Plastino et al...
November 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347147/generalized-run-and-turn-motions-from-bacteria-to-l%C3%A3-vy-walks
#4
François Detcheverry
Swimming bacteria exhibit a repertoire of motility patterns, in which persistent motion is interrupted by turning events. What are the statistical properties of such random walks? If some particular instances have long been studied, the general case where turning times do not follow a Poisson process has remained unsolved. We present a generic extension of the continuous time random walks formalism relying on operators and noncommutative calculus. The approach is first applied to a unimodal model of bacterial motion...
July 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347079/optimal-information-transfer-in-enzymatic-networks-a-field-theoretic-formulation
#5
Himadri S Samanta, Michael Hinczewski, D Thirumalai
Signaling in enzymatic networks is typically triggered by environmental fluctuations, resulting in a series of stochastic chemical reactions, leading to corruption of the signal by noise. For example, information flow is initiated by binding of extracellular ligands to receptors, which is transmitted through a cascade involving kinase-phosphatase stochastic chemical reactions. For a class of such networks, we develop a general field-theoretic approach to calculate the error in signal transmission as a function of an appropriate control variable...
July 2017: Physical Review. E
https://www.readbyqxmd.com/read/29341386/at-the-core-of-reasoning-dissociating-deductive-and-non-deductive-load
#6
John P Coetzee, Martin M Monti
In recent years, neuroimaging methods have been used to investigate how the human mind carries out deductive reasoning. According to some, the neural substrate of language is integral to deductive reasoning. According to others, deductive reasoning is supported by a language-independent distributed network including left frontopolar and frontomedial cortices. However, it has been suggested that activity in these frontal regions might instead reflect non-deductive factors such as working memory load and general cognitive difficulty...
January 16, 2018: Human Brain Mapping
https://www.readbyqxmd.com/read/29340514/racial-i-nter-dentification-the-racialization-of-maternal-health-through-the-oportunidades-program-and-in-government-clinics-in-m%C3%A3-xico
#7
Rosalynn Adeline Vega
Using an ethnographic approach, this article examines the role of racialization in health-disease-care processes specifically within the realm of maternal health. It considers the experiences of health care administrators and providers, indigenous midwives and mothers, and recipients of conditional cash transfers through the Oportunidades program in Mexico. By detailing the delivery of trainings of the Mexican Social Security Institute (IMSS) [Instituto Mexicano del Seguro Social] for indigenous midwives and Oportunidades workshops to indigenous stipend recipients, the article critiques the deployment of "interculturality" in ways that inadvertently re-inscribe inequality...
July 2017: Salud Colectiva
https://www.readbyqxmd.com/read/29336882/histobacteriologic-conditions-of-the-apical-root-canal-system-and-periapical-tissues-in-teeth-associated-with-sinus-tracts
#8
Domenico Ricucci, Simona Loghin, Lucio S Gonçalves, Isabela N Rôças, José F Siqueira
INTRODUCTION: This histobacteriologic study described the pattern of intraradicular and extraradicular infections in teeth with sinus tracts and chronic apical abscesses. METHODS: The material comprised biopsy specimens from 24 (8 untreated and 16 treated) roots of teeth associated with apical periodontitis and a sinus tract. Specimens were obtained by periradicular surgery or extraction and were processed for histobacteriologic and histopathologic methods. RESULTS: Bacteria were found in the apical root canal system of all specimens, in the main root canal (22 teeth) and within ramifications (17 teeth)...
January 12, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29334438/in-vitro-and-in-vivo-evaluations-of-the-anticalculus-effect-of-a-novel-stabilized-stannous-fluoride-dentifrice
#9
Tao He, Mary Kay Anastasia, Marianne Zsiska, Teresa Farmer, Eva Schneiderman, Jeffery L Milleman
OBJECTIVES: To evaluate the effect of a novel stannous fluoride dentifrice with zinc citrate on calculus inhibition using both in vitro and clinical models. METHODS: Each investigation tested a novel stabilized 0.454% stannous fluoride dentifrice with zinc citrate as an anticalculus agent (Crest® Pro-Health™ smooth formula) compared to a negative control fluoride dentifrice. The in vitro study used the modified Plaque Growth and Mineralization Model (mPGM). Plaque biofilms were prepared and mineralized by alternate immersion of glass rods in human saliva and artificial mineralization solution...
December 2017: Journal of Clinical Dentistry
https://www.readbyqxmd.com/read/29334434/the-case-for-stabilized-stannous-fluoride-dentifrice-an-advanced-formulation-designed-for-patient-preference
#10
Tao He, Svetlana Farrell
Oral diseases, particularly caries and gingivitis, continue to be widespread. Incorporating a stabilized stannous fluoride dentifrice into patients' daily oral hygiene routine is a convenient, cost effective approach to improve and protect their oral health and the appearance of their smile. Unlike other common fluorides that only provide anti-caries benefits (e.g., sodium fluoride and sodium monofluorophosphate), stabilized stannous fluoride formulations have demonstrated broader and significantly greater protection, also reducing plaque, gingivitis, erosion, sensitivity, and halitosis...
December 2017: Journal of Clinical Dentistry
https://www.readbyqxmd.com/read/29323539/an-introduction-to-kristof-s-theorem-for-solving-least-square-optimization-problems-without-calculus
#11
Niels Waller
Kristof's Theorem (Kristof, 1970 ) describes a matrix trace inequality that can be used to solve a wide-class of least-square optimization problems without calculus. Considering its generality, it is surprising that Kristof's Theorem is rarely used in statistics and psychometric applications. The underutilization of this method likely stems, in part, from the mathematical complexity of Kristof's ( 1964 , 1970 ) writings. In this article, I describe the underlying logic of Kristof's Theorem in simple terms by reviewing four key mathematical ideas that are used in the theorem's proof...
January 11, 2018: Multivariate Behavioral Research
https://www.readbyqxmd.com/read/29323077/epidermoid-cyst-of-the-renal-pelvis-masquerading-as-malignancy
#12
Dinesh Pradhan, Gabriela Quiroga-Garza, Ronald Hrebinko, Rajiv Dhir, Anil V Parwani
Epidermoid cyst of the renal pelvis is exceptionally rare. The histogenetic mechanism has not been well characterized. Herein, we report a case of intrarenal epidermoid cyst in a 62-year-old woman who had undergone left nephrolithotomy for a staghorn calculus. She was being followed up for bilateral renal cysts when a complex mass was noted arising from the lower pole of the left kidney. Renal ultrasound showed a small left kidney with a solid vascular echogenic mass. A laparoscopic radical nephrectomy was performed...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29322850/clinical-significance-of-intrapancreatic-choledochal-cyst-excision-in-surgical-management-of-type-i-choledochal-cyst
#13
Fei Fan, Da-Peng Xu, Zheng-Xiang Xiong, Hai-Jia Li, Hai-Bei Xin, Huan Zhao, Jin-Wei Zhang
Objective To investigate the effectiveness of intrapancreatic choledochal cyst excision in treating type I choledochal cyst, and increase understanding of the need for thorough surgical management of the disease. Methods Primary and secondary (including multiple) surgical cases, treated between 2005 and 2015, were retrospectively analysed, and follow-up data of post-treatment effectiveness to date were reviewed. Differences in curative effects were compared between whole and partial excision of the choledochal cyst...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29322602/outcomes-of-more-than-1-000-percutaneous-nephrolithotomies-and-validation-of-guy-s-stone-score
#14
Petronio Augusto de Souza Melo, Fabio Carvalho Vicentini, Artur Agostinho Beraldi, Marcelo Hisano, Claudio Bovolenta Murta, Joaquim Francisco de Almeida Claro
OBJECTIVE: To present the experience with percutaneous nephrolithotomy (PCNL) at a high-volume Brazilian centre and to evaluate Guy's stone score (GSS) as a predictor of success and complications in PCNL. PATIENTS AND METHODS: We prospectively evaluated patients who underwent PCNL between June 2011 and October 2016. Indications for PCNL included renal stones larger than 2 cm and calculi smaller than 2 cm in which first-line techniques had failed. All patients underwent a complete pre-operative evaluation, including non-contrast-enhanced abdominal computed tomography (CT)...
January 11, 2018: BJU International
https://www.readbyqxmd.com/read/29321070/the-effect-of-methamphetamine-abuse-on-dental-caries-and-periodontal-diseases-in-an-eastern-china-city
#15
Tao Ye, Dongliang Sun, Guangying Dong, Guangjie Xu, Ligang Wang, Jinjin Du, Pengcheng Ren, Shibin Yu
BACKGROUND: Dental diseases are among the most frequently reported health problems in drug abusers. However, few studies have been conducted on oral health of methamphetamine (meth) abusers in China. The aim of the present study was to investigate the caries and periodontal health profile of former meth abusers in Eastern China. METHODS: A cross-sectional study was conducted on 162 former meth abusers in the male Zhoushan Compulsory Detoxification Center. A standardized questionnaire, which collected information about age, drug-use duration / pattern, oral hygiene habit and systemic diseases, was administered...
January 10, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/29312740/serum-metalloproteinase-2-and-tissue-inhibitor-of-metalloproteinase-2-in-lung-carcinoma-patients
#16
Magdalena Drzewiecka-Jędrzejczyk, Rafał Wlazeł, Monika Terlecka, Sławomir Jabłoński
Background: Assessment of serum extracellular matrix (ECM) metalloproteinase MMP-2 and tissue inhibitor of matrix metalloproteinase TIMP-2 concentrations in non-small cell lung carcinoma (NSCLC) patients considering TNM staging. Assessment of the prognostic value of MMP-2 and TIMP-2 concentrations in NSCLC patients. Methods: The study group consisted of 81 NSCLC patients (24 females and 57 males) aged 46 to 86 years (mean age of 67±8.2 years). The control group comprised 39 randomly selected patients (20 females and 19 males) aged 27 to 73 years (mean age of 47±15...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29291254/supportive-periodontal-therapy-spt-for-maintaining-the-dentition-in-adults-treated-for-periodontitis
#17
REVIEW
Carolina Manresa, Elena C Sanz-Miralles, Joshua Twigg, Manuel Bravo
BACKGROUND: Periodontitis is a bacterially-induced, chronic inflammatory disease that destroys the connective tissues and bone that support teeth. Active periodontal treatment aims to reduce the inflammatory response, primarily through eradication of bacterial deposits. Following completion of treatment and arrest of inflammation, supportive periodontal therapy (SPT) is employed to reduce the probability of re-infection and progression of the disease; to maintain teeth without pain, excessive mobility or persistent infection in the long term, and to prevent related oral diseases...
January 1, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29285823/provision-of-oral-hygiene-services-as-a-potential-method-for-preventing-periodontal-disease-and-control-hypertension-and-diabetes-in-a-community-health-centre-in-korea
#18
Nam-Hee Kim, Ga-Yeong Lee, Su-Kyung Park, Yeun-Ju Kim, Min-Young Lee, Chun-Bae Kim
This study aimed to evaluate the effects of a community-based oral hygiene service on general and periodontal health indicators of patients with hypertension and type 2 diabetes mellitus visiting a community health centre in Korea. The study used a one-group pretest-posttest and interrupted time-series design. A total of 151 participants (45% male), with a mean age of 63 ± 8.4 years, were included in the study; these included patients with hypertension (62%), diabetes (12%) and both hypertension and diabetes (26%)...
December 28, 2017: Health & Social Care in the Community
https://www.readbyqxmd.com/read/29285470/oral-health-status-among-children-with-cerebral-palsy-in-dubai-united-arab-emirates
#19
Haifa Al Hashmi, Mawlood Kowash, Amar Hassan, Manal Al Halabi
Objectives: The purpose of this study was to assess the oral health status of children with cerebral palsy (CP) in Dubai, United Arab Emirates (UAE). Materials and Methods: Eighty-four CP and 125 healthy children were recruited from special needs centers and private/public schools in Dubai. A dental examination for decayed-missing-filled teeth in primary dentition (dmft)/Decayed-Missing-Filled teeth in permanent dentition (DMFT) indices, simplified oral hygiene index, calculus index (CI), and oral debris index was conducted...
November 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/29281984/the-alarming-problems-of-confounding-equivalence-using-logistic-regression-models-in-the-perspective-of-causal-diagrams
#20
Yuanyuan Yu, Hongkai Li, Xiaoru Sun, Ping Su, Tingting Wang, Yi Liu, Zhongshang Yuan, Yanxun Liu, Fuzhong Xue
BACKGROUND: Confounders can produce spurious associations between exposure and outcome in observational studies. For majority of epidemiologists, adjusting for confounders using logistic regression model is their habitual method, though it has some problems in accuracy and precision. It is, therefore, important to highlight the problems of logistic regression and search the alternative method. METHODS: Four causal diagram models were defined to summarize confounding equivalence...
December 28, 2017: BMC Medical Research Methodology
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