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https://www.readbyqxmd.com/read/28077886/effect-of-dental-chair-light-on-enamel-bonding-of-orthodontic-brackets-using-light-cure-based-adhesive-system-an-in-vitro-study
#1
Anil Tiwari, Tarulatha Shyagali, Sarvraj Kohli, Rishi Joshi, Abhishek Gupta, Rana Tiwari
AIM: The aim of this in vitro study was to evaluate the influence of the Dental chair light on the bond strength of light cured composite resin. MATERIALS AND METHODS: Sixty therapeutically extracted human premolar teeth were randomly allocated to two groups of 30 specimens each. In both groups light cured composite resin (Transbond XT) and MBT premolar metal brackets (3M Unitek) was used to bond brackets. In group I and II light curing was done using Light-emitting diode light curing units without and with the dental chair light respectively...
October 2016: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28077122/relationship-between-risk-assessment-and-payment-models-in-swedish-public-dental-service-a-prospective-study
#2
Gunnel Hänsel Petersson, Svante Twetman
BACKGROUND: To a) compare risk categories in patients selecting a capitation payment (CP) model with those in fee-for-service (FFS), b) determine the 3-year caries increment in the two groups, and c) compare the amount of delivered preventive care in the two groups. METHODS: A comprehensive risk assessment was carried out in 1295 young adults attending eight Public Dental Clinics in the Scania region and 75% could be re-examined after 3 years; 615 had selected the CP model and 310 the traditional FFS...
January 11, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28076902/decellularized-extracellular-matrix-of-human-umbilical-vein-endothelial-cells-promotes-endothelial-differentiation-of-stem-cells-from-exfoliated-deciduous-teeth
#3
Ting Gong, Boon Chin Heng, Jianguang Xu, Shaoyue Zhu, Changyong Yuan, Edward Chin Man Lo, Chengfei Zhang
Dental stem cells can serve as a potential source of functional endothelial cells (ECs) for tissue engineering applications, but the endothelial-lineage differentiation efficiency is rather low even with growth factors and mechanical stimuli, which greatly limits their clinical applications. This is partly due to the deficiency of standard two-dimensional (2-D) culture systems, which is unable to recapitulate the three-dimensional (3-D) in vivo milieu that is rich in extracellular matrix. Hence we extracted decellularized extracellular matrix from human umbilical vein endothelial cells (HUVECs-DECM) to provide a bioactive substratum conducive to the endothelial differentiation of dental stem cells...
January 11, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28064220/gene-expression-analysis-of-cultured-rat-endothelial-cells-after-nd-yag-laser-irradiation-by-affymetrix-genechip-array
#4
Yoshiko Masuda, Satoshi Yokose, Hiroshi Sakagami
Endothelial cells and dental pulp cells enhance osteo-/odontogenic and angiogenic differentiation. In our previous study, rat pulp cells migrated to Nd:YAG laser-irradiated endothelial cells in an insert cell culture system. The purpose of this study was to examine the possible changes in the gene expression of cultured rat aortic endothelial cells after Nd:YAG laser irradiation using affymetrix GeneChip Array. Total RNA was extracted from the cells at 5 h after laser irradiation. Gene expressions were evaluated by DNA array chip...
January 2017: In Vivo
https://www.readbyqxmd.com/read/28063377/finite-element-analysis-of-post-dental-implant-fixation-in-drilled-mandible-sites
#5
Adel Pirjamalineisiani, Mohsen Sarafbidabad, Nima Jamshidi, Fatemeh Abedi Esfahani
BACKGROUND: Implant loosening may occur after dental implant placement as a result of the mechanical conditions created around the implant. In this research, the effect of bone drilling conditions on the magnitude of stress created in newly-formed bone around the implant, after placement, was investigated using FEA analysis. METHOD: The simulations performed in this study were based on the three-dimensional (3D) shape of the created cavities, extracted from the drilled cortical bone of the jaws...
November 27, 2016: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28050990/swinging-replantation-a-possible-protocol-for-the-management-of-inverted-impacted-upper-central-incisor-tooth
#6
Seidu A Bello, Deborah J Enebong, Emeka V Obi
Inverted tooth impaction is a rare occurrence. Third molar impaction is the most extensively studied, and only eight cases of inverted third molars have been reported in a literature search of 40 years from 1973 to 2013. In a study, 43.4% of the premaxillary supernumeraries were inverted and 21.1% were transversely oriented, while occasional inverted central incisors have been mentioned in the literature. Severe dilaceration makes the management of this case a big challenge. The case of an 8-year-old boy with an inverted, rotated, and impacted upper left central incisor obstructed by an odontome is presented here...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28050987/glucose-levels-and-hemodynamic-changes-in-patients-submitted-to-routine-dental-extraction-under-local-anesthesia-with-and-without-adrenaline
#7
Sanjay Byakodi, Vivek Gurjar, Sushant Soni
INTRODUCTION: In maxillofacial surgery, the simplest procedure that we perform is dental extraction. However, this simple procedure is challenged by the patient's poor medical condition. We generally use local anesthesia in combination with adrenaline; however, as we come across patients with diabetes mellitus and cardiovascular diseases who seek dental extraction, we need to be doubly cautious while using adrenaline. In this study, we intend to compare the effects of local anesthesia with adrenaline and local anesthesia without adrenaline on hemodynamic changes (blood pressure and pulse rate) and random blood sugar levels...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28049681/caries-removal-by-first-year-dental-students-a-multisource-competency-assessment-strategy-for-reflective-practice
#8
Tracy L de Peralta, Vidya Ramaswamy, Elisabeta Karl, Elizabeth Van Tubergen, Mary Ellen McLean, Mark Fitzgerald
Multisource assessment (MSA) uses multiple assessors to provide feedback. Little is known about the validity of using MSA feedback for improving students' ability to self-assess in a preclinical environment. Therefore, the aim of this study was to measure the validity of using a defined reflective process involving an MSA tool for building skill in dental students' self-evaluation of caries excavation on extracted teeth. As part of this process, 104 first-year students at one U.S. dental school used a self-generated study plan (SGSP) for structured reflection on MSA feedback during the 2013-14 academic year...
January 2017: Journal of Dental Education
https://www.readbyqxmd.com/read/28047867/we-ab-207a-12-hlcc-based-quantitative-evaluation-method-of-image-artifact-in-dental-cbct
#9
Y Chen, S Wu, H Qi, Y Xu, L Zhou
PURPOSE: Image artifacts are usually evaluated qualitatively via visual observation of the reconstructed images, which is susceptible to subjective factors due to the lack of an objective evaluation criterion. In this work, we propose a Helgason-Ludwig consistency condition (HLCC) based evaluation method to quantify the severity level of different image artifacts in dental CBCT. METHODS: Our evaluation method consists of four step: 1) Acquire Cone beam CT(CBCT) projection; 2) Convert 3D CBCT projection to fan-beam projection by extracting its central plane projection; 3) Convert fan-beam projection to parallel-beam projection utilizing sinogram-based rebinning algorithm or detail-based rebinning algorithm; 4) Obtain HLCC profile by integrating parallel-beam projection per view and calculate wave percentage and variance of the HLCC profile, which can be used to describe the severity level of image artifacts...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28043013/transient-receptor-potential-melastatin-trpm-8-is-expressed-in-freshly-isolated-native-human-odontoblasts
#10
Kento Tazawa, Hideharu Ikeda, Nobuyuki Kawashima, Takashi Okiji
OBJECTIVE: Cold-sensitive ion channels, such as transient receptor potential melastatin (TRPM) 8 and transient receptor potential ankyrin (TRPA) 1, may play a crucial role in the nociceptive function of odontoblasts, whereas expression of these TRP channels in human native odontoblasts remains to be elucidated. This study aimed to analyze the expression of TRPM8 and TRPA1 in freshly isolated native human odontoblasts. DESIGN: Odontoblasts were isolated from freshly extracted healthy human teeth (n=4); after removing the inner pulp tissues from the pulp chambers, odontoblasts remaining on the dentin surface were washed out with phosphate buffered saline and collected...
December 23, 2016: Archives of Oral Biology
https://www.readbyqxmd.com/read/28042448/statistical-analysis-of-the-frequency-distribution-of-signs-and-symptoms-of-patients-with-temporomandibular-disorders
#11
R Franco, M Basili, A Venditti, C Chiaramonte, L Ottria, A Barlattani, P Bollero
The purpose of this text is to evaluate the distribution by sex and age of TMD patients and the frequency of pain on palpation of the lateral pterygoid muscle, pterygoid internal, sternocleidomastoid, masseter, temporal. The purpose is also to assess the existence of direct correlations between the articulating click and lateral deviation, the headache and tenderness of the temporal, the back pain and tenderness of the sternocleidomastoid, the postural disorders and difficulty finding the exact mating closing, the disorders related to previous dental procedures (large conservative reconstructions, rehabilitations fixed dentures and dental extractions) and tenderness to the temporal and masseter...
October 2016: Oral & Implantology
https://www.readbyqxmd.com/read/28042443/differences-between-warfarin-and-new-oral-anticoagulants-in-dental-clinical-practice
#12
REVIEW
M Miranda, L S Martinez, R Franco, V Forte, A Barlattani, P Bollero
The oral anticoagulant therapy is used for the cure and the prevention of thromboembolic diseases. In the last fifty years the warfarin has been considered the oral anticoagulant of choice. However, its use is limited by a narrow therapeutic index and by a complex pharmacodynamics, which requires regular adjustments and monitoring of the dose. Recently, three new oral anticoagulant - dabigatran etexilato (direct thrombin inhibitor), rivaroxaban and apixaban (Xa factor direct inhibitor) - have been approved for use in europe...
July 2016: Oral & Implantology
https://www.readbyqxmd.com/read/28042267/comparison-of-temporary-anchorage-devices-and-transpalatal-arch-mediated-anchorage-reinforcement-during-canine-retraction
#13
Defne Kecik
OBJECTIVE: The purpose of this study was to compare the dental and skeletal effects of canine retraction using conventional anchorage reinforcement systems and comparing them with the usage of TADs. MATERIALS AND METHODS: The sample consisted of 50 patients having Class I malocclusions with bimaxillary protrusion indicated for first premolar extraction, and allocated into two groups. The first group consisted of 25 patients with a mean age of 18,7 years (min:14, max:22 years, 16 girls and 9 boys) that TADs were applied as an anchorage mechanic between attached gingiva of upper second premolar and first molar teeth...
October 2016: European Journal of Dentistry
https://www.readbyqxmd.com/read/28042262/dentists-knowledge-and-practice-regarding-prevention-of-infective-endocarditis
#14
Soukaina Ryalat, Yazan Hassona, Mohammad Al-Shayyab, Mais Abo-Ghosh, Faleh Sawair
OBJECTIVES: The objective of this study is to assess the knowledge and practice of dentists from Jordan, regarding prevention of infective endocarditis (IE) in dental practice. MATERIALS AND METHODS: A sample of Jordanian dentists was interviewed regarding their IE knowledge and practice using a validated and pretested survey instrument. RESULTS: Most of the dentists have encountered a patient with IE who needed prophylactic antibiotic (PA) and have prescribed antibiotics to prevent IE...
October 2016: European Journal of Dentistry
https://www.readbyqxmd.com/read/28032050/discrepancies-between-dental-and-medical-records-of-cardiac-patients-in-alhada-armed-forces-hospital-taif-saudi-arabia
#15
Sana M Al Hibshi, Rajaa M Al-Raddadi, Mansour K Assery
AIMS AND OBJECTIVES: This study aims to estimate the prevalence of medical information discrepancies between dental and medical records of cardiac patients at AlHada Armed Forces Hospital in Taif and to identify the factors contributing to these information discrepancies. MATERIALS AND METHODS: The study applied a descriptive retrospective medical and dental records review of a stratified proportional sample of 289 cardiac patients, which was extracted from 1154 cardiac patients who visited both the cardiology and dental clinics at the AlHada Armed Forces Hospital between 2007 and June 2012...
November 2016: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28028395/microbiological-assessment-of-moringa-oleifera-extracts-and-its-incorporation-in-novel-dental-remedies-against-some-oral-pathogens
#16
Hanaa Elgamily, Amani Moussa, Asmaa Elboraey, Hoda El-Sayed, Marwa Al-Moghazy, Aboelfetoh Abdalla
AIM: To assess the antibacterial and antifungal potentials of different parts of Moringa oleifera plant using different extraction methods in attempts to formulate natural dental remedies from this plant. MATERIAL AND METHODS: Three solvents extracts (Ethanol, acetone, and ethyl acetate) of different parts of Egyptian Moringa tree were prepared and tested against oral pathogens: Staphylococcus aureus, Streptococcus mutans, and Candida albicans using disc diffusion method; As well as to incorporate the plant extract to formulate experimental toothpaste and mouthwash...
December 15, 2016: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28027344/spending-on-children-s-personal-health-care-in-the-united-states-1996-2013
#17
Anthony L Bui, Joseph L Dieleman, Hannah Hamavid, Maxwell Birger, Abigail Chapin, Herbert C Duber, Cody Horst, Alex Reynolds, Ellen Squires, Paul J Chung, Christopher J L Murray
Importance: Health care spending on children in the United States continues to rise, yet little is known about how this spending varies by condition, age and sex group, and type of care, nor how these patterns have changed over time. Objective: To provide health care spending estimates for children and adolescents 19 years and younger in the United States from 1996 through 2013, disaggregated by condition, age and sex group, and type of care. Evidence Review: Health care spending estimates were extracted from the Institute for Health Metrics and Evaluation Disease Expenditure 2013 project database...
December 27, 2016: JAMA Pediatrics
https://www.readbyqxmd.com/read/28025807/risk-factors-and-prevalence-of-dental-fluorosis-and-dental-caries-in-school-children-of-north-india
#18
Kavita Plaka, Khaiwal Ravindra, Suman Mor, Krishan Gauba
The aim of the study was to assess the prevalence of dental fluorosis, dental caries, and associated risk factors in the school children of district Fatehgarh Sahib, Punjab, India, using a cross-sectional study design. Oral health status of children aged between 8 and 15 years was assessed using World Health Organization (WHO) 2013 criteria. Dental fluorosis was assessed using Dean's index, and dental caries were recorded using decayed, missing, filled/decayed, extracted, filled (DMF/def) indices. Four hundred school children were examined, of which 207 were in the 8-11-year-old group and 193 were in the 12-15-year-old group...
January 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28024779/early-orthodontic-treatment-for-class-iii-malocclusion-a-systematic-review-and-meta-analysis
#19
REVIEW
See Choong Woon, Badri Thiruvenkatachari
INTRODUCTION: Class III malocclusion affects between 5% and 15% of our population. The 2 most common dilemmas surrounding Class III treatment are the timing of treatment and the type of appliance. A number of appliances have been used to correct a Class III skeletal discrepancy, but there is little evidence available on their effectiveness in the long term. Similarly, early treatment of Class III malocclusion has been practiced with increasing interest. However, there has been no solid evidence on the benefits in the long term...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024772/effects-of-casein-phosphopeptide-amorphous-calcium-phosphate-application-after-interproximal-stripping-on-enamel-surface-an-in-vivo-study
#20
Mehmet Bayram, Adem Kusgoz, Cemal Yesilyurt, Metin Nur
INTRODUCTION: The aim of this study was to investigate the effects of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) application after interproximal stripping on enamel surface structures in vivo. METHODS: Fifteen patients with a mean age of 15.8 years participated in this study. For each patient, the extraction of 4 first premolars was part of the orthodontic treatment plan. The patients were randomly divided into 5 groups of 3 patients. With the exception of group 1, the mesial and distal surfaces of all first premolars were stripped with a stripping disc (Komet; Gebr Brasseler, Lemgo, Germany) under air cooling and then polished with Sof-Lex polishing discs (3M Dental Products, St Paul, Minn)...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
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