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https://www.readbyqxmd.com/read/28925550/contemporary-concepts-in-carious-tissue-removal-a-review
#1
REVIEW
Falk Schwendicke
OBJECTIVES: Based on a changed understanding of the disease caries and its pathogenesis, strategies for carious tissue removal have changed, too. This review aims to summarize these changes and to provide clinical recommendations. OVERVIEW: Removing all carious dentin from a cavity is not needed any longer to manage caries or the carious lesion. Instead, the carious lesion should be treated in a way allowing to arrest its activity, while preserving sound tooth tissue and pulp vitality...
September 19, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28925109/red-fluorescence-imaging-for-dental-plaque-detection-and-quantification-pilot-study
#2
Zhao Liu, Juliana Gomez, Soniya Khan, Debbie Peru, Roger Ellwood
The red fluorescence of dental plaque originating from porphyrins in oral bacteria may allow visualization, detection, and scoring of plaque without disclosing agents. Two studies were conducted. The first included 24 healthy participants who abstained from oral hygiene for 24 h. Dental plaque was collected from tooth surfaces, and a 10% solution was prepared. These were scanned by a molecular spectrometer to identify the optimum excitation and emission wavelengths of plaque for developing a red fluorescence imaging system...
September 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28924388/spatiotemporal-expression-of-wnt-%C3%AE-catenin-signaling-during-morphogenesis-and-odontogenesis-of-deciduous-molar-in-miniature-pig
#3
Xiaoshan Wu, Yan Li, Fu Wang, Lei Hu, Yang Li, Jinsong Wang, Chunmei Zhang, Songlin Wang
The canonical Wnt/β-catenin signaling pathway has been shown to play essential roles in tooth initiation and early tooth development. However, the role of Wnt/β-catenin signaling in cusp patterning and crown calcification in large mammals are largely unknown. In our previous study, miniature pigs were used as the animal model due to the similarity of tooth anatomy and replacement pattern between miniature pig and human. Dynamic gene expression of third deciduous molar (DM3) in miniature pig at early stages was profiled using microarray method and expression of Wnt genes was significantly correlate with odontogenesis...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28922571/interprofessional-oral-health-initiative-in-a-nondental-american-indian-setting
#4
Kate L Murphy, Laura S Larsson
BACKGROUND AND PURPOSE: Tooth decay is the most common chronic childhood disease and American Indian (AI) children are at increased risk. Pediatric primary care providers are in an opportune position to reduce tooth decay. The purpose of this study was to integrate and evaluate a pediatric oral health project in an AI, pediatric primary care setting. METHODS: The intervention set included caregiver education, caries risk assessment, and a same-day dental home referral...
September 18, 2017: Journal of the American Association of Nurse Practitioners
https://www.readbyqxmd.com/read/28921912/fate-of-worn-out-functional-teeth-in-the-upper-jaw-dentition-of-sicyopterus-japonicus-gobioidei-sicydiinae-during-tooth-replacement
#5
Noriyuki Sahara, Keita Moriyama, Midori Iida, Shun Watanabe
Mochizuki and Fukui (1983) studied the development and replacement of the upper jaw teeth in a Japanese fish species, Sicyopterus japonicus (Gobioidei: Sicydiinae), and they reported that worn-out functional teeth in the upper jaw were not shed outside the skin but were taken into the soft tissue of the upper jaw and completely resorbed there. To date, however, this phenomenon appears poorly documented. Furthermore, the mechanism for the resorption of these teeth remains to be determined. In the present study, we examined this phenomenon by using 3D micro-computed tomography (m-CT), scanning electron microscopy (SEM), and various techniques of light (LM) and electron (EM) microcopy...
September 16, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28920110/painful-neuropathy-caused-by-compression-of-the-inferior-alveolar-nerve-by-focal-osteosclerotic-lesion-of-the-mandible-a-case-report
#6
David Debevc, Tomaž Hitij, Andrej Kansky
Osteosclerotic lesions are a common finding on dental radiographs. They are considered developmental variants of a normal bone architecture and they usually do not need any treatment. The purpose of this article is to present a rare case of osteosclerotic lesion of the mandible causing trigeminal neuropathy by compression of the alveolar nerve. The pain started with dental hypersensitivity of the mandibular right first molar. Later on, signs of irreversible molar tooth pulpitis developed. Endodontic therapy and apicoectomy did not resolve the pain, which later intensified, and painful neuropathy localized to inferior alveolar nerve developed; therefore, surgical decompression was indicated...
2017: Quintessence International
https://www.readbyqxmd.com/read/28917943/chronic-fluoride-exposure-exacerbates-headkidney-pathology-and-causes-immune-commotion-in-clarias-gariepinus
#7
Rashmi Singh, Md Arafat Hussain, Jai Kumar, Manmohan Kumar, Usha Kumari, Shibnath Mazumder
The current study was aimed to understand the effects of chronic fluoride exposure on fish immune system. African sharp tooth catfish (Clarias gariepinus) were exposed to 73.45mg/L of fluoride corresponding to 1/10 96h LC50 for 30 d and the effects on general fish health and several immune parameters were studied. Chronic fluoride exposure led to significant alteration in serum biochemical parameters including alkaline phosphatase, alanine transaminase, aspartate transaminase, triglycerides, cholesterol and blood urea nitrogen levels revealing the detrimental effect of fluoride on general fish health...
September 6, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28917830/al-awadi-raas-rothschild-syndrome-with-dental-anomalies-and-a-novel-wnt7a-mutation
#8
Piranit Nik Kantaputra, Seema Kapoor, Prashant Verma, Massupa Kaewgahya, Katsushige Kawasaki, Atsushi Ohazama, James R Ketudat Cairns
Al-Awadi-Raas-Rothschild syndrome (AARRS; OMIM 276820) is a very rare autosomal recessive limb malformation syndrome caused by WNT7A mutations. AARRS is characterized by various degrees of limb aplasia and hypoplasia. Normal intelligence and malformations of urogenital system are frequent findings. Complete loss of WNT7A function has been shown to cause AARRS, however, its partial loss leads to the milder malformation, Fuhrmann syndrome. An Indian boy affected with AARRS is reported. A novel homozygous base substitution mutation c...
September 13, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28917577/direct-pulp-capping-with-calcium-hydroxide-mineral-trioxide-aggregate-and-biodentine-in%C3%A2-permanent-young-teeth-with-caries-a%C3%A2-randomized-clinical-trial
#9
Claudia Brizuela, Andrea Ormeño, Carolina Cabrera, Roxana Cabezas, Carolina Inostroza Silva, Valeria Ramírez, Montse Mercade
INTRODUCTION: Direct pulp capping treatment is intended to preserve pulp vitality, to avoid or retard root canal treatment, and, in cases with an open apex, to allow continued root development. Historically, calcium hydroxide (CH) was the gold standard material, but nowadays calcium silicate materials (CSMs) are displacing CH because of their high bioactivity, biocompatibility, sealing ability, and mechanical properties. However, more randomized clinical trials are needed to confirm the appropriateness of CSMs as replacement materials for CH in direct pulp capping procedures...
September 13, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28914240/comparison-of-candida-species-isolated-from-children-with-and-without-early-childhood-caries-a-descriptive-cross-sectional-study
#10
M S Beena, Faizal C Peedikayil, M B GufranAfmed, T P Chandru, K Soni, N Dhanesh
BACKGROUND: Early childhood caries (ECC) is characterized by the presence of one or more decayed, missing (due to caries), or filled teeth surfaces in any primary tooth, in a child below 6 years of age. Although ECC is primarily associated with high levels of maternal Streptococcus mutans, there has been an increased interest in finding the relationship between oral fungal flora and dental caries. OBJECTIVE: The aim of the study is to identify and characterize the Candida species and to compare the candidal isolates in children with ECC and without ECC...
October 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28914067/-drugs-and-dosage-forms-as-risk-factors-for-dental-caries
#11
Petra Bořilová Linhartová, Lydie Izakovičová Hollá
Dental caries is a multifactorial disease which, despite a series of preventive measures, remains the most common infectious disease worldwide. Susceptibility or resistance to caries may be a result of the presence of risk or protective factors, genetic predisposition, inappropriate lifestyle associated with education, behavioural and socioeconomic factors. The aim of this review is to highlight the risks associated with the use of some drugs and dosage forms in relation to the formation and development of dental caries...
2017: Ceská a Slovenská Farmacie
https://www.readbyqxmd.com/read/28913739/the-w%C3%A3-rzburg-mih-concept-the-mih-treatment-need-index-mih-tni-a-new-index-to-assess-and-plan-treatment-in-patients-with-molar-incisior-hypomineralisation-mih
#12
R Steffen, N Krämer, K Bekes
AIM: This was to create a new easy-to-use index for the treatment of MIH. METHODS: An international MIH working group developed a new MIH index as an epidemiological screening procedure for assessing MIH treatment needs (MIH-TNI), and also for the screening and monitoring of individuals by dental practitioners. RESULTS: The MIH TNI assesses in particular the extent of the destruction of tooth structure in combination with any hypersensitivity occurring in MIH...
September 14, 2017: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28905436/dentition-of-the-apron-ray-discopyge-tschudii-elasmobranchii-narcinidae
#13
M C Spath, M Deli Antoni, G Delpiani
The present study provides quantitative and qualitative analyses of the dentition of Discopyge tschudii. Overall, 193 individuals (99 males and 94 females) of D. tschudii were collected on scientific trawl surveys conducted by the National Institute for Fisheries Research and Development (INIDEP) and commercial vessels in Argentina. Discopyge tschudii has rhombic-shaped teeth, arranged in a semipavement-like dentition; each tooth has an erect cusp slightly inclined posteriorly and holaulachorized root. Mature males have greater tooth lengths than females and immature specimens...
September 14, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28904312/adhesion-of-human-periodontal-ligament-cells-by-three-dimensional-culture-to-the-sterilized-root-surface-of-extracted-human-teeth
#14
Chieko Mino, Toshio Iwata, Toshitsugu Kawata
Residual periodontal ligament (PDL) and cement mass on the roots of extracted teeth are factors that considerably affect tooth transplantation. Therefore, when normal extracted teeth are used for autologous transplantation, it is necessary to regenerate the PDL of the root surface. Here we describe a method to examine human PDL cell adhesion on sterilized root surfaces. Sample teeth were extracted during orthodontic treatment. PDL cells were obtained from healthy periodontal tissue explants from teeth extracted for orthodontic reasons...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28902422/transplantation-of-non-cultured-stromal-vascular-fraction-cells-of-adipose-tissue-ameliorates-osteonecrosis-of-the-jaw-like-lesions-in-mice
#15
Shinichiro Kuroshima, Muneteru Sasaki, Kazunori Nakajima, Saki Tamaki, Hiroki Hayano, Takashi Sawase
The precise pathoetiology and effective treatment strategies for bisphosphonate-related osteonecrosis of the jaw (BRONJ) remain unknown. Transplantation of non-cultured stromal vascular fraction (SVF) cells has been demonstrated to be a useful method for regenerative medicine in place of stem cell therapy. This study investigated the effects of non-cultured SVF transplantation on tooth extraction socket healing in mice. Both chemotherapeutic/bisphosphonate combination therapy for 7 weeks and tooth extraction of maxillary first molars at 3 weeks after drug administration were performed using female C57BL/6J mice...
September 13, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28900213/copine-7-binds-to-the-cell-surface-receptor-nucleolin-and-regulates-ciliogenesis-and-dspp-expression-during-odontoblast-differentiation
#16
You-Mi Seo, Su-Jin Park, Hye-Kyung Lee, Joo-Cheol Park
Tooth development is a progressive process regulated by interactions between epithelial and mesenchymal tissues. Our previous studies showed that copine-7 (Cpne7), a dental epithelium-derived protein, is a signalling molecule that is secreted by preameloblasts and regulates the differentiation of preodontoblasts into odontoblasts. However, the mechanisms involved in the translocation of Cpne7 from preameloblasts to preodontoblasts and the functions of Cpne7 during odontogenesis are poorly understood. Here, we showed that the internalization of Cpne7 was mediated primarily by caveolae...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28899616/risk-factors-for-dental-problems-recommendations-for-oral-health-in-infancy
#17
REVIEW
Yvonne Wagner, Roswitha Heinrich-Weltzien
Primary care providers, gynaecologists and paediatricians have to be aware of the importance of oral health in infancy and possible consequences for child's development, growth, health and quality of life. Oral diseases, particularly dental caries, developmental defects of the dental tissues and periodontal or orthodontic issues have a complex and interrelated aetiology with common, primarily behavioral based risk factors. A sugar-rich diet is the key risk factor with detrimental consequences for general and oral health, particularly in combination with an insufficient oral hygiene...
September 9, 2017: Early Human Development
https://www.readbyqxmd.com/read/28894837/dental-occlusion-ties-a-rapid-safe-and-non-invasive-maxillo-mandibular-fixation-technology
#18
Alan W Johnson
OBJECTIVES: For decades, Erich arch bars have been a standard in establishing maxillo-mandibular fixation (MMF). While reliable, the approach risks sharps injury, consumes operating room time, and inflicts gingival trauma. Newer technologies including screw-based techniques and "hybrid" techniques have improved MMF by reducing sharps injuries and operating room time, but risk injury to tooth roots, nerves, and gingiva. This study aims to establish the application, strengths, and limitations of dental occlusion ties as a novel alternative in maxillo-mandibular fixation...
August 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/28892649/expression-of-phosphate-transporters-during-dental-mineralization
#19
L Merametdjian, S Beck-Cormier, N Bon, G Couasnay, S Sourice, J Guicheux, C Gaucher, L Beck
The importance of phosphate (Pi) as an essential component of hydroxyapatite crystals suggests a key role for membrane proteins controlling Pi uptake during mineralization in the tooth. To clarify the involvement of the currently known Pi transporters (Slc17a1, Slc34a1, Slc34a2, Slc34a3, Slc20a1, Slc20a2, and Xpr1) during tooth development and mineralization, we determined their spatiotemporal expression in murine tooth germs from embryonic day 14.5 to postnatal day 15 and in human dental samples from Nolla stages 6 to 9...
September 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28890622/rare-condition-of-dens-invaginatus-in-a-maxillary-primary-molar-and-a-birooted-maxillary-primary-canine-diagnosed-during-routine-examination
#20
Eliana Costa Barbosa Brandão, Apoena Aguiar Ribeiro, Luciane Monte Alto Seabra
Congenital morphological dental alterations are related to the physiological phase of tooth development. Since the etiology of the dens invaginatus and supernumerary roots has yet to be fully determined, a rare presentation of dens invaginatus in a primary molar and a birooted deciduous maxillary canine were incidentally detected in routine radiographic examinations. Essential clinical considerations and treatment options are presented. CLINICAL SIGNIFICANCE: This study highlights the importance of a deep and comprehensive anamnesis and clinical examination, with radiographs taken when necessary...
April 2017: International Journal of Clinical Pediatric Dentistry
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