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https://www.readbyqxmd.com/read/28735465/approximal-morphology-as-predictor-of-approximal-caries-in-primary-molar-teeth
#1
A Cortes, S Martignon, V Qvist, Kim Rud Ekstrand
OBJECTIVE: To evaluate the predictive power of the morphology of the distal surface on 1st and mesial surface on 2nd primary molar teeth on caries development in young children. SAMPLE AND METHODS: Out of 101 3-to 4-year-old children from an on-going study, 62 children, for whom parents' informed consent was given, participated. Upper and lower molar teeth of one randomly selected side received a 2-day temporarily separation. Bitewing radiographs and silicone impressions of interproximal area (IPA) were obtained...
July 22, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28735355/a-systematic-review-of-dental-disease-management-in-cancer-patients
#2
Catherine H L Hong, Shijia Hu, Thijs Haverman, Monique Stokman, Joel J Napeñas, Jacolien Bos-den Braber, Erich Gerber, Margot Geuke, Emmanouil Vardas, Tuomas Waltimo, Siri Beier Jensen, Deborah P Saunders
INTRODUCTION: This systematic review aims to update on the prevalence of odontogenic-related infections and the efficacy of dental strategies in preventing dental-related complications in cancer patients since the 2010 systematic review. REVIEW METHOD: A literature search was conducted in the databases MEDLINE/PubMed and EMBASE for articles published between 1 January 2009 and 30 June 2016. Each study was assessed by 2 reviewers and the body of evidence for each intervention was assigned an evidence level...
July 22, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28734652/worldwide-prevalence-of-mandibular-second%C3%A2-molar%C3%A2-c-shaped-morphologies-evaluated-by-cone-beam-computed-tomography
#3
Murilo von Zuben, Jorge N R Martins, Luiza Berti, Imran Cassim, Daniel Flynn, Jose Antonio Gonzalez, Yongchun Gu, Jojo Kottoor, Adam Monroe, Rubén Rosas Aguilar, Miguel Seruca Marques, António Ginjeira
INTRODUCTION: The aim of this study was to evaluate and compare the C-shaped mandibular second molar prevalence in different regions around the world with the aid of cone-beam computed tomography technology. METHODS: Nine field observers from 9 different geographic regions were calibrated. A total of 400 samples were collected in each region. The prevalence of C-shaped anatomy was calculated. The number of roots and the configuration of the C-shaped canals at 3 different axial levels were also evaluated...
July 19, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28734650/treatment-of-cracked-teeth
#4
Shaymaa Alkhalifah, Halimah Alkandari, Prem N Sharma, Alex J Moule
Although many options are proposed for the treatment of cracked posterior teeth, most treatment decisions are not evidence based. Thus, considerable individual variation can occur regarding treatment recommendations for the same scenario. To our knowledge, there are no studies in the literature assessing practitioners' attitudes toward the treatment of cracked teeth. This research recorded variations between general practitioners and specialist groups regarding the treatment approaches of cracked teeth. In a cross-sectional structured questionnaire survey, 32 prosthodontists, 34 endodontists, and 29 general practitioners working in public and private dental health services in Kuwait were assessed regarding their treatment approach to 5 different clinical cracked tooth scenarios...
July 19, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28734649/maxillary-and-mandibular-non-hodgkin-lymphoma-with-concurrent-periapical-endodontic-disease-diagnosis-and-management
#5
Jennifer M Dolan, Anna DeGraft-Johnson, Neville McDonald, Brent B Ward, Tycel J Phillips, Stephanie M Munz
Extranodal non-Hodgkin lymphoma (NHL) in the oral region can present similarly to diseases of odontogenic origin. The objective of this report was to describe a rare case of maxillary and mandibular NHL that presented similarly to and concurrently with lesions of odontogenic origin.A unique case of extranodal NHL, which presented at the apices of maxillary and mandibular teeth in conjunction with lesions of odontogenic origin in a 68-year-old white man, is described. The patient sought care because of a lesion in the right maxillary paranasal region that caused him paresthesia...
July 19, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28734648/minimally-invasive-treatment-of-class-4-invasive-cervical-resorption-with-internal-approach-a%C3%A2-case-series
#6
Avi Shemesh, Joe Ben Itzhak, Michael Solomonov
Invasive cervical resorption (ICR) is a type of external resorption that can involve the coronal, middle, and apical parts of the root in its advanced stages. The diagnosis and treatment of ICR depend on the extent of the resorption into the dentin. The treatment of advanced ICR is challenging, and these teeth have poor prognoses. This article describes 4 cases of class 4 ICR diagnosed by using cone-beam computed tomography and treated with a minimally invasive internal approach with sodium hypochlorite irrigation and calcium hydroxide dressing...
July 19, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28734081/whitening-dependent-changes-of-fluorescence-of-extracted-human-teeth
#7
Natalie Pereira Sanchez, Aleksandar Aleksic, Miroslav Dramicanin, Rade D Paravina
OBJECTIVE: To evaluate in vitro the fluorescence properties of extracted human teeth whitened with 40% hydrogen peroxide. MATERIALS AND METHODS: A total of 28 extracted human teeth were pumiced for 1 minute using a low-speed dental handpiece and a disposable rubber cup. Pre-whitening fluorescence measurements (T0), maximum excitation (Exmax ), maximum emission (Emmax ), and maximum intensity (Imax 10(8) ), were performed using a spectrofluorometer. After T0 measurements, the teeth were whitened using the in-office method with 40% hydrogen peroxide, three times for 20 minutes...
July 22, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28734061/evaluation-of-a-technique-for-color-correction-in-restoring-anterior-teeth
#8
Gabrielle Branco Rauber, Jussara Karina Bernardon, Luiz Clovis Cardoso Vieira, Luiz Narciso Baratieri
OBJECTIVE: This study aimed to evaluate the ability of the proposed technique in producing restorations that exhibit mimesis with tooth structure and to define a restorative clinical protocol. MATERIALS AND METHODS: For this study a typodont was used. The right upper central incisor with Class IV lesion was restored with the layering technique (reference tooth, RT). For the left upper central incisor with Class IV lesion, six teeth were restored monochromatically (test teeth, TT), using DA3...
July 22, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28733997/natural-history-of-periodontitis-disease-progression-and-tooth-loss-over-40-years
#9
C A Ramseier, Å Ånerud, M Dulac, M Lulic, M P Cullinan, G J Seymour, M J Faddy, W Büergin, M Schätzle, N P Lang
OBJECTIVES: To assess long-term attachment and periodontitis-related tooth loss (PTL) in untreated periodontal disease over 40 years. MATERIAL AND METHODS: Data originated from the natural history of periodontitis study in Sri Lankan tea labourers first examined in 1970. In 2010, 75 subjects (15.6%) of the original cohort were re-examined. RESULTS: PTL over 40 years varied between 0 and 28 teeth (mean 13.1). Four subjects presented with no PTL while 12 were edentulous...
July 22, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28733464/lineage-tracing-of-epithelial-cells-in-developing-teeth-reveals-two-strategies-for-building-signaling-centers
#10
Wei Du, Jimmy Kuang-Hsien Hu, Wen Du, Ophir D Klein
An important event in organogenesis is the formation of signaling centers, which are clusters of growth-factor secreting cells. In the case of tooth development, sequentially formed signaling centers known as the initiation knot (IK) and the enamel knot (EK) regulate morphogenesis. However, despite the importance of signaling centers, their origin, as well as the fate of the cells composing them, remain open questions. Here, using lineage tracing of distinct epithelial populations, we found that the EK of the mouse incisor is derived de novo from a group of SRY-box 2 (Sox2)-expressing cells in the posterior half of the tooth germ...
July 21, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28733184/medication-use-and-its-potential-impact-on-the-oral-health-status-of%C3%A2-nursing-home-residents-in-flanders-belgium
#11
Barbara Janssens, Mirko Petrovic, Wolfgang Jacquet, Jos M G A Schols, Jacques Vanobbergen, Luc De Visschere
BACKGROUND: Polypharmacy is considered the most important etiologic factor of hyposalivation, which in turn can initiate oral health problems. OBJECTIVES: To describe the medication use of nursing home residents, to identify the medications related to hyposalivation and to find possible associations between the different classes of medication, the number of medications, and the oral health status of the residents. DESIGN: A cross-sectional study...
July 18, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28733180/association-between-malnutrition-and-oral-health-in-dutch-nursing-home-residents-results-of-the-lpz-study
#12
Viviënne A L Huppertz, Gert-Jan van der Putten, Ruud J G Halfens, Jos M G A Schols, Lisette C P G M de Groot
INTRODUCTION: According to the World Health Organization (WHO) and FDI World Dental Federation (FDI), malnutrition and bad oral health are of great concern to global health, especially among the older population. This study aimed to assess the associations between oral health problems ([artificial] teeth problems, chewing problems, and xerostomia) and malnutrition in residents of somatic and psychogeriatric wards in Dutch nursing homes. METHODS: Data of the cross-sectional National Prevalence Measurement of Quality of Care study (Landelijke Prevalentiemeting Zorgproblemen study) in the Netherlands were used to evaluate nutritional status and oral health of 3220 residents, aged 65 or older and living in somatic or psychogeriatric wards in Dutch nursing homes...
July 18, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28732220/short-term-evaluation-of-gustatory-changes-after-surgical-removal-of-mandibular-third-molar-a-prospective-randomized-control-trial
#13
D Prabhu Shankar, P Manodh, Pradeep Devadoss, Rahul Anand, Murugan Aparna
PURPOSE: The present study was carried out to prospectively determine the incidence and severity of suprathreshold taste changes after surgical removal of mandibular third molars. MATERIALS AND METHODS: Sixty patients who required removal of impacted third molars were included in the study. Based on the Winter criteria of angulation of impacted mandibular third molars, 15 patients each with mesioangular, distoangular, horizontal, and vertical impacted third molars were selected...
June 30, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28732182/stim1-regulates-enamel-mineralization-and-ameloblast-modulation
#14
Y Furukawa, N Haruyama, M Nikaido, M Nakanishi, N Ryu, M Oh-Hora, K Kuremoto, K Yoshizaki, Y Takano, I Takahashi
Loss-of-function mutations in the Ca(2+) release-activated Ca(2+) channel genes ORAI1 and STIM1 abolish store-operated Ca(2+) entry (SOCE) and result in ectodermal dysplasia with amelogenesis imperfecta. However, because of the limited availability of patient tissue, analyses of enamel mineralization or possible changes in ameloblast function or morphology have not been possible. Here, we generated mice with ectodermal tissue-specific deletion of Stim1 ( Stim1 cKO [conditional knockout]), Stim2 ( Stim2 cKO), and Stim1 and Stim2 ( Stim1/2 cKO) and analyzed their enamel phenotypes as compared with those of control ( Stim1/2(fl/fl)) animals...
July 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28731299/human-biomonitoring-of-lead-exposure
#15
Katrin Klotz, Thomas Göen
After a chronic exposure, lead accumulates in the human body, especially in bones and teeth. Critical effects of lead affect the nervous system, reproduction, fertility as well as genotoxicity and carcinogenicity [1]. Analyses of lead concentrations in human biological material are performed using inductively coupled plasma mass spectrometry and atomic absorption spectrometry, but also electrochemical methods and X-ray fluorescence spectroscopy. The predominant sample matrices include blood and bone, as well as urine, hair, nail, and saliva...
April 10, 2017: Metal Ions in Life Sciences
https://www.readbyqxmd.com/read/28731215/hypophosphatasia-in-adults-clinical-assessment-and-treatment-considerations
#16
Jay R Shapiro, E Michael Lewiecki
Hypophosphatasia (HPP) is a rare inherited disorder of bone affecting approximately 500-600 known individuals in the US. HPP is due to mutations involving the gene for tissue non-specific alkaline phosphatase. Five clinical types of HPP are recognized. The clinical presentation of HPP varies from devastating prenatal intrauterine disease to mild manifestations in adulthood. In adults, main clinical involvement includes early loss of primary or secondary teeth, osteoporosis, bone pain, chondrocalcinosis, and fractures...
July 21, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28730455/does-professional-experience-save-teeth-a-survey-among-prosthodontists
#17
Shaza Bishti, Julia Lautensack, Jens C Türp, Stefan Wolfart
OBJECTIVES: The aim of this study is to investigate the effect of clinical experience and educational background on clinical decision-making of dentists presented with two prosthodontic cases. METHODS: A questionnaire-based survey was performed among 66 prosthodontists who were divided into two groups. The first group included clinicians from Belgium, Germany, and the Netherlands covering a wide spectrum of dental experience. The second (specialized) group consisted of German dentists performing their last module of a 3-year postgraduate master program in prosthodontics...
July 20, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28730381/pooled-human-serum-increases-regenerative-potential-of-in-vitro-expanded-stem-cells-from-human-extracted-deciduous-teeth
#18
Nazmul Haque, Noor Hayaty Abu Kasim
In regenerative therapy, in vitro expansion of stem cells is critical to obtain a significantly higher number of cells for successful engraftment after transplantation. However, stem cells lose its regenerative potential and enter senescence during in vitro expansion. In this study, the influence of foetal bovine serum (FBS) and pooled human serum (pHS) on the proliferation, morphology and migration of stem cells from human extracted deciduous teeth (SHED) was compared. SHED (n = 3) was expanded in KnockOut DMEM supplemented with either pHS (pHS-SM) or FBS (FBS-SM)...
July 21, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28730236/root-fractures-epidemiological-clinical-and-radiographic-aspects
#19
Sanda Mihaela Popescu, Oana Andreea Diaconu, Monica Scrieciu, Iulia Roxana Marinescu, Emma Cristina Drăghici, Anca Gabriela Truşcă, Alexandra Carina Bănică, Mihaela Vătu, Veronica MercuŢ
Chronic root fractures are a relative frequent dental condition, occurring both in vital teeth and in teeth with root canal treatment, with a difficult and frustrating diagnosis. Two clinical forms are described: crown-root fractures with crown origin and vertical root fractures with root origin. The aim of the study was to determine the prevalence of the root fractured extracted teeth in two dental clinics with different profile [oral rehabilitation (OR) and endodontics (E)] and to present some particular aspects of the root fractures...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28729805/dental-treatment-considerations-for-a-pediatric-patient-with-incontinentia-pigmenti-bloch-sulzberger-syndrome
#20
Amy Yi-Ling Chen, Kevin Chen
Incontinentia pigmenti (IP) is a uncommon gene disorder, heritage with X-linked dominant mode. IP patients have a characteristic dentition varying from marked hypodontia to delayed eruption and conical crowns on both dentitions. A 5½-year-old girl, whose mother and younger sister were also diagnosed with IP, has the whirling-like pigmented skin lesion over her trunk and four extremities. Four primary teeth and multiple permanent tooth germs were found to be congenital missing. Dental considerations of further treatment were discussed with her parents including the preservation of primary molars, possible interim prosthesis in mixed or permanent dentition, full mouth rehabilitation with orthodontic and prosthodontic combined treatment, and implant therapy in adulthood...
April 2017: European Journal of Dentistry
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