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https://www.readbyqxmd.com/read/28809370/marsupialization-facilitates-movement-of-the-cystic-lesion-associated-deeply-impacted-mandibular-third-molar-in-spite-of-its-mature-roots
#1
R Sun, Y Cai, Y Wu, J-H Zhao
BACKGROUND: The odontogenic cystic lesions happened in the angle and ramus region are frequently associated with impacted mandibular third molars. The treatment plan was difficult to work out for the huge cystic lesions with deeply impacted third molars, since the enucleation with simultaneously removing the deeply impacted teeth may cause serious complications. Therefore, the marsupialization of the cystic lesions followed by enucleation with tooth removal has also been advocated. The aim of this study was to explore the movement of cystic lesion-associated deeply impacted mandibular third molars (IMTM) after marsupialization...
August 15, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28808640/light-emitting-diode-assessment-of-dentinal-defects-the-role-of-presumed-extraction-forces
#2
Marcelo Santos Coelho, Steven J Card, Peter Z Tawil
OBJECTIVES: The evaluation of iatrogenic dentinal defects in extracted teeth may be influenced by extraction forces and prolonged dry times. The purpose of this study was to compare the presence of dentinal defects in freshly extracted, periodontally compromised teeth with those in a group of teeth with uncontrolled extraction forces and storage time. MATERIALS AND METHODS: The experimental group consisted of eighteen roots obtained from teeth extracted due to periodontal reasons with class II or III mobility...
August 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28808636/in-vivo-assessment-of-accuracy-of-propex-ii-root-zx-ii-and-radiographic-measurements-for-location-of-the-major-foramen
#3
Fernanda Garcia Tampelini, Marcelo Santos Coelho, Marcos de Azevêdo Rios, Carlos Eduardo Fontana, Daniel Guimarães Pedro Rocha, Sergio Luiz Pinheiro, Carlos Eduardo da Silveira Bueno
OBJECTIVES: The aim of this in vivo study was to assess the accuracy of 2 third-generation electronic apex locators (EALs), Propex II (Dentsply Maillefer) and Root ZX II (J. Morita), and radiographic technique for locating the major foramen (MF). MATERIALS AND METHODS: Thirty-two premolars with single canals that required extraction were included. Following anesthesia, access, and initial canal preparation with size 10 and 15 K-flex files and SX and S1 rotary ProTaper files, the canals were irrigated with 2...
August 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28807370/descriptive-analysis-of-factors-associated-with-external-cervical-resorption
#4
Athina M Mavridou, Lars Bergmans, Dick Barendregt, Paul Lambrechts
INTRODUCTION: The aim of this study was to perform a descriptive analysis of the occurrence of external cervical resorption (ECR) in relation to the patients' characteristics (sex, age, and tooth type) and the potentially involved predisposing factors. METHODS: This study includes data on 284 patients (337 teeth with evidence of ECR) referred to the University Hospital Leuven (Leuven, Belgium) and Endo Rotterdam (Rotterdam, the Netherlands) for diagnosis and treatment from 2010 to 2015...
August 11, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28806378/gummy-smile-correction-using-lingual-orthodontics-and-augmented-corticotomy-in-extremely-thin-alveolar-housing
#5
Kyung-Yen Nahm, Seung-Yun Shin, Hyo-Won Ahn, Seong-Hun Kim, Gerald Nelson
BACKGROUND: Tooth movement out of anatomic limitations was assisted by augmented corticotomy using deproteinized bovine bone mineral. METHODS: Lip protrusion can be reduced by premolar extraction followed by retraction of the anterior teeth. Surgical intervention is appropriate when the alveolar bone housing of the anterior region is insufficient for the tooth movement. In this patient, corticotomy in upper palatal area and anterior segmented osteotomy in the mandible were performed...
August 10, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28805207/periodontal-diseases
#6
REVIEW
Denis F Kinane, Panagiota G Stathopoulou, Panos N Papapanou
Periodontal diseases comprise a wide range of inflammatory conditions that affect the supporting structures of the teeth (the gingiva, bone and periodontal ligament), which could lead to tooth loss and contribute to systemic inflammation. Chronic periodontitis predominantly affects adults, but aggressive periodontitis may occasionally occur in children. Periodontal disease initiation and propagation is through a dysbiosis of the commensal oral microbiota (dental plaque), which then interacts with the immune defences of the host, leading to inflammation and disease...
June 22, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28803745/further-development-of-the-mronj-minipig-large-animal-model
#7
Sven Otto, Christoph Pautke, Olga Martin Jurado, Dirk Nehrbass, Martin J Stoddart, Michael Ehrenfeld, Stephan Zeiter
Medication-related osteonecrosis of the jaw (MRONJ) is a rare but serious and potentially severe side effect of antiresorptive therapy with bisphosphonates or denosumab. Recently, a large animal minipig MRONJ model was introduced which led to early necrotic lesions in the majority of extraction sites after bisphosphonate administration. The aim of this project was to modify the preoperative cumulative bisphosphonate dose (zoledronate) and hereby firstly to demonstrate the reliability and reproducibility of the established model...
July 18, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28802762/clinical-application-of-autogenous-partially-demineralized-dentin-matrix-prepared-immediately-after-extraction-for-alveolar-bone-regeneration-in-implant-dentistry-a-pilot-study
#8
T Minamizato, T Koga, Takashi I, Y Nakatani, M Umebayashi, Y Sumita, T Ikeda, I Asahina
The aim of this study was to examine the efficacy and safety of autogenous partially demineralized dentin matrix (APDDM) prepared onsite, for clinical application in bone regeneration procedures related to implant dentistry, including socket preservation, alveolar ridge augmentation, and maxillary sinus floor augmentation. In this study, 16 patients underwent dental implant placement using APDDM transplantation. There were no systemic or local complications (including surgical site infection) in any of the cases, and oral rehabilitation using dental implants was successful in all cases for at least 2 years after attachment of the suprastructure...
August 9, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28800151/cost-comparison-of-prediction-based-decision-making-for-periodontally-affected-molars
#9
Falk Schwendicke, Michael Stolpe, Christian Graetz
AIM: Tooth loss prediction could improve decision-making for periodontally-affected molars. We analyzed the costs of removing all, none or only those molars predicted to be at-risk for extraction during supportive periodontal therapy (SPT). METHODS: This is a model-based study using a German private-payer-perspective. Building mainly on cost and effectiveness data from 2039 molars (301 patients) which received long-term SPT, five (exemplary) prediction/decision strategies were compared: Retaining all molars, removing molars with furcation-involvement (FI) ≥I/≥II/III, or removing all molars...
August 11, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28797916/performance-of-pit-and-fissure-sealants-according-to-tooth-characteristics-a-systematic-review-and-meta-analysis
#10
REVIEW
Spyridon N Papageorgiou, Dionysia Dimitraki, Nikolaos Kotsanos, Katrin Bekes, Hubertus van Waes
OBJECTIVE: Aim of this systematic review was to assess the clinical performance of sealants on various teeth in an evidence-based manner. SOURCES: Five databases were searched from inception to February 2017. DATA: Randomized clinical studies on humans. METHODS: After duplicate study selection, data extraction, and risk of bias assessment according to the Cochrane guidelines, Paule-Mandel random-effects meta-analyses of Relative Risks (RRs) and their 95% confidence intervals (CIs) were calculated...
August 8, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28797468/incidence-of-and-risk-factors-for-mandibular-osteoradionecrosis-in-patients-with-oral-cavity-and-oropharynx-cancers
#11
Dominic H Moon, Sung Ho Moon, Kyle Wang, Mark C Weissler, Trevor G Hackman, Adam M Zanation, Brian D Thorp, Samip N Patel, Jose P Zevallos, Lawrence B Marks, Bhishamjit S Chera
OBJECTIVES: To evaluate the incidence of, and risk factors associated with, mandibular osteoradionecrosis (MORN) following radiation therapy (RT) for oral cavity and oropharyngeal cancers. MATERIALS AND METHODS: Patient and treatment records of 252 consecutive patients with oral cavity or oropharynx cancers treated with RT by a single radiation oncologist at a high volume academic institution from August 2009 to December 2015 were retrospectively reviewed. A Cox regression model was used to assess factors associated with the development of MORN...
September 2017: Oral Oncology
https://www.readbyqxmd.com/read/28794357/a-rare-case-of-gastric-ulcer-penetrating-the-pancreas-that-was-successfully-managed-by-conservative-therapy
#12
Narihiro Shibukawa, Shohei Ouchi, Shuji Wakamatsu, Yuhei Wakahara, Nobuyuki Tatsumi, Akira Kaneko
A 62-year-old woman was admitted to our hospital with septic shock due to left submandibular osteomyelitis and cellulitis. Her condition improved following tooth extraction, drainage, and the administration of antibiotics. However, on the 4th day of hospitalization, she went into hemorrhagic shock after defecating a massive tarry stool. Emergency esophagogastroduodenoscopy (EGD) was performed. We found a giant ulcer at the antral greater curvature of the stomach. Computed tomography (CT) revealed that the gastric ulcer had penetrated the pancreas...
August 10, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28793083/oral-health-condition-and-reasons-for-tooth-extraction-among-an-adult-population-20-64-years-old
#13
Manoelito Ferreira Silva-Junior, Anne Caroline Correia de Sousa, Marília Jesus Batista, Maria da Luz Rosário de Sousa
The study characterized the oral health condition and main self-reported reasons for tooth extraction in an adult population. The cross-sectional study examined 248 adults aged 20-64 years, representative of the population of Piracicaba, São Paulo, Brazil. The oral examination conducted in households used the DMFT and CPI indexes, use and necessity of prosthodontics according to the WHO criteria and the presence of visible biofilm. Demographic and socioeconomic data were collected along with reasons for tooth extraction through a questionnaire...
August 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28792978/an-upper-palaeolithic-engraved-human-bone-associated-with-ritualistic-cannibalism
#14
Silvia M Bello, Rosalind Wallduck, Simon A Parfitt, Chris B Stringer
Cut-marked and broken human bones are a recurrent feature of Magdalenian (~17-12,000 years BP, uncalibrated dates) European sites. Human remains at Gough's Cave (UK) have been modified as part of a Magdalenian mortuary ritual that combined the intensive processing of entire corpses to extract edible tissues and the modification of skulls to produce skull-cups. A human radius from Gough's Cave shows evidence of cut marks, percussion damage and human tooth marks, indicative of cannibalism, as well as a set of unusual zig-zagging incisions on the lateral side of the diaphysis...
2017: PloS One
https://www.readbyqxmd.com/read/28781792/prostate-cancer-with-disseminated-carcinomatosis-of-the-bone-marrow-two-case-reports
#15
Tasuku Hiroshige, Yoshiro Eguchi
Disseminated carcinomatosis of the bone marrow (DCBM) is caused by cancer metastasis to the bone marrow and is often accompanied by disseminated intravascular coagulation (DIC), with rapid clinical progression. We herein report two cases receiving treatment with combined androgen blockade (CAB) and denosumab for prostate cancer with DCBM. The patient in case 1 was an 80-year-old man who was admitted with a 3-day history of melena and was diagnosed with prostate cancer with DCBM by bone marrow biopsy. Despite receiving therapy with CAB and denosumab, the patient developed castration-resistant prostate cancer (CRPC) with accompanying relapse of DIC and succumbed to the disease 7 months later...
August 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28777394/in-vitro-evaluation-of-onlay-restorations-on-primary-teeth
#16
Kadriye G U Güzel, Ayşe C Altun, Zuhal Kırzıoğlu
PURPOSE: Many novel materials have been developed such as composite resin, ceramic, zircon or metal-supported ceramic for use in aesthetic restoration of primary teeth and permanent teeth with extensive crown damage. The aim of the present study was to compare microtensile bond strengths on materials using the microtensile bond strength test. MATERIALS AND METHODS: The microtensile bond strength on the primary tooth dentin was measured on extracted primary teeth using an indirect method and fracture patterns were evaluated...
August 2, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28776953/establishment-of-oral-bacterial-communities-in-germ-free-mice-and-the-influence-of-recipient-age
#17
Yingying Wu, Caroline Westwater, E Xiao, Jôice Dias Corrêa, Wenmei Xiao, Dana T Graves
The acquisition of the oral microbiome is a complex process. We examined how the timing of microbial exposure alters bacterial colonization of the tooth surface. Germ-free mice were conventionalized by exposure to specific pathogen free (SPF) mice to acquire a commensal microbiome over three distinct four week periods, 0-4 weeks of age (Conv0-4w), 4-8 weeks (Conv4-8w), or 8-12 weeks (Conv8-12w). Bacterial DNA was extracted from the tooth surface and analyzed by 16S rDNA sequencing. Total bacteria and inflammatory cytokine expression in gingiva were determined by quantitative real-time PCR...
August 4, 2017: Molecular Oral Microbiology
https://www.readbyqxmd.com/read/28774432/automatic-methods-for-alveolar-bone-loss-degree-measurement-in-periodontitis-periapical-radiographs
#18
P L Lin, P Y Huang, P W Huang
BACKGROUND AND OBJECTIVE: Periodontitis involves progressive loss of alveolar bone around the teeth. Hence, automatic alveolar bone loss measurement in periapical radiographs can assist dentists in diagnosing such disease. In this paper, we propose an automatic length-based alveolar bone loss measurement system with emphasis on a cementoenamel junction (CEJ) localization method: CEJ_LG. METHOD: The bone loss measurement system first adopts the methods TSLS and ABLifBm, which we presented previously, to extract teeth contours and bone loss areas from periodontitis radiograph images...
September 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28772346/radiographic-computed-tomographic-gross-pathological-and-histological-findings-with-suspected-apical-infection-in-32-equine-maxillary-cheek-teeth-2012-2015
#19
T Liuti, S Smith, P M Dixon
BACKGROUND: Equine maxillary cheek teeth apical infections are a significant disorder because of frequent spread of infection to the supporting bones. The accuracy of computed tomographic imaging (CT) of this disorder has not been fully assessed. OBJECTIVES: To compare the radiographic and CT findings in horses diagnosed with maxillary cheek teeth apical infections with pathological findings in the extracted teeth to assess the accuracy of these imaging techniques...
August 3, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28771897/clinical-and-mutational-spectrum-of-charcot-marie-tooth-disease-type-2z-caused-by-morc2-variants-in-japan
#20
M Ando, Y Okamoto, A Yoshimura, J-H Yuan, Y Hiramatsu, Y Higuchi, A Hashiguchi, J Mitsui, H Ishiura, S Fukumura, M Matsushima, N Ochi, J Tsugawa, S Morishita, S Tsuji, H Takashima
BACKGROUND AND PURPOSE: The microrchidia family CW-type zinc finger 2 gene (MORC2) was newly identified as a causative gene of Charcot-Marie-Tooth disease (CMT) type 2Z in 2016. We aimed to describe the clinical and mutational spectrum of patients with CMT harboring MORC2 mutations in Japan. METHODS: We analyzed samples from 781 unrelated patients clinically diagnosed with CMT using deoxyribonucleic acid microarray or targeted resequencing by next-generation sequencing, and samples from 434 mutation-negative patients were subjected to whole-exome sequencing...
August 3, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
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