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Journal of Dental Research

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https://www.readbyqxmd.com/read/30216734/cost-effectiveness-of-the-hall-technique-in-a-randomized-trial
#1
F Schwendicke, J Krois, M Robertson, C Splieth, R Santamaria, N Innes
Clinical and patient-reported outcomes were reported for carious primary molars treated with the Hall technique (HT) as compared with conventional carious tissue removal and restorations (i.e., conventional restoration [CR]) in a 5-y randomized controlled practice-based trial in Scotland. We interrogated this data set further to investigate the cost-effectiveness of HT versus CR. A total of 132 children who had 2 matched occlusal/occlusal-proximal carious lesions in primary molars ( n = 264 teeth) were randomly allocated to HT or CR, provided by 17 general dental practitioners...
September 14, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30216733/the-mutational-profile-of-unicystic-ameloblastoma
#2
K Heikinheimo, J-M Huhtala, A Thiel, K J Kurppa, H Heikinheimo, M Kovac, C Kragelund, G Warfvinge, H Dawson, K Elenius, A Ristimäki, D Baumhoer, P R Morgan
BRAF V600E is the most common mutation in conventional ameloblastoma (AM) of the mandible. In contrast, maxillary AMs appear to harbor more frequently RAS, FGFR2, or SMO mutations. Unicystic ameloblastoma (UAM) is considered a less aggressive variant of ameloblastoma, amenable to more conservative treatment, and classified as a distinct entity. The aim of this study was to characterize the mutation profile of UAM ( n = 39) and to compare it to conventional AM ( n = 39). The associations between mutation status and recurrence probability were also analyzed...
September 14, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30205020/a-prospective-controlled-multicenter-study-to-evaluate-the-clinical-outcome-of-implant-treatment-in-women-with-osteoporosis-osteopenia-5-year-results
#3
A Temmerman, L Rasmusson, A Kübler, A Thor, J Merheb, M Quirynen
The impact of osteoporosis on implant treatment is still a matter of debate in the scientific community, as it may possibly lead to higher failure rates. As long-term controlled trials are missing, the aim of this study was to verify the long-term outcome of implants placed in patients with systemic osteoporosis. Postmenopausal women in need of implants underwent bone mineral density measurements in hip and spine, using dual X-ray absorptiometry scans. Based on T-scores, they were divided into 2 groups: group O (osteoporosis group) with a T-score ≤-2 or group C (control group) with a T-score of ≥-1...
September 11, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30205018/sexual-dimorphism-in-immunity-to-oral-bacterial-diseases-intersection-of-neutrophil-and-osteoclast-pathobiology
#4
M S Valerio, K L Kirkwood
Sex is a biological variable that affects immune responses to bacterial and other types of infectious agents. Males and females are known to have differential oral bacterial disease burden in periodontal and endodontic disease. Understanding that there is a contribution from both sex and gender to these oral diseases, we discuss in this review recent sex-based findings that provide a pathobiological basis for differences observed between males and females. Sexual dimorphism of immune responses with respect to neutrophil trafficking and osteoclast differentiation and formation is presented as a plausible mechanism to explain the sexual differences...
September 11, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30205016/predicting-caries-in-medical-settings-risk-factors-in-diverse-infant-groups
#5
M Fontana, G J Eckert, M A Keels, R Jackson, B P Katz, A R Kemper, B T Levy, S M Levy, E Yanca, S Kelly, J M Daly, B Patterson, P McKnight
Expanded partnership with the medical community is a promising strategy for reducing disparities in dental caries among young children. However, no validated caries risk instrument exists for use in primary health care settings. To help resolve this gap, a 52-item caries risk questionnaire was developed and targeted to primary caregivers (PCGs) to test in a 3-y prospective study. To begin to understand the validity of the questionnaire items, the purpose of this study was to compare responses to the questionnaire based on key demographic characteristics known to be associated with disparities in caries experience (e...
September 11, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30205013/etiology-and-pathogenesis-of-hemifacial-microsomia
#6
Q Chen, Y Zhao, G Shen, J Dai
Hemifacial microsomia (HFM) is a common congenital malformation of the craniofacial region. There are 3 possible pathogenic models of HFM-vascular abnormality and hemorrhage in the craniofacial region, damage to Meckel's cartilage, and the abnormal development of cranial neural crest cells-and the most plausible hypothesis is the vascular abnormality and hemorrhage model. These 3 models are interrelated, and none of them is completely concordant with all the variable manifestations of HFM. External environmental factors (e...
September 11, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30199654/berberine-ameliorates-periodontal-bone-loss-by-regulating-gut-microbiota
#7
X Jia, L Jia, L Mo, S Yuan, X Zheng, J He, V Chen, Q Guo, L Zheng, Q Yuan, X Xu, X Zhou
Postmenopausal osteoporosis (PMO) is a risk factor for periodontitis, and current therapeutics against PMO prevent the aggravated alveolar bone loss of periodontitis in estrogen-deficient women. Gut microbiota is recognized as a promising therapeutic target for PMO. Berberine extracted from Chinese medicinal plants has shown its effectiveness in the treatment of metabolic diseases such as obesity and diabetes via regulating gut microbiota. Here, we hypothesize that berberine ameliorates periodontal bone loss by improving the intestinal barriers by regulating gut microbiota under an estrogen-deficient condition...
September 10, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30189157/serum-amyloid-a-contributes-to-chronic-apical-periodontitis-via-tlr2-and-tlr4
#8
K Hirai, H Furusho, N Kawashima, S Xu, M C de Beer, R Battaglino, T Van Dyke, P Stashenko, H Sasaki
In the current concept of bacterial infections, pathogen-associated molecular patterns (PAMPs) derived from pathogens and damage-associated molecular patterns (DAMPs) released from damaged/necrotic host cells are crucial factors in induction of innate immune responses. However, the implication of DAMPs in apical and marginal periodontitis is unknown. Serum amyloid A (SAA) is a DAMP that is involved in the development of various chronic inflammatory diseases, such as rheumatoid arthritis. In the present study, we tested whether SAA is involved in the pathogenesis of periapical lesions, using human periapical surgical specimens and mice deficient in SAA and Toll-like receptors (TLR)...
September 6, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30189155/american-association-for-dental-research-policy-statement-on-community-water-fluoridation
#9
A S Ajiboye, D R Dawson, C H Fox
No abstract text is available yet for this article.
September 6, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30189149/biological-and-mechanical-evaluation-of-novel-prototype-dental-composites
#10
H L Van der Laan, S L Zajdowicz, K Kuroda, B J Bielajew, T A Davidson, J Gardinier, D H Kohn, S Chahal, S Chang, J Liu, J Gerszberg, T F Scott, B H Clarkson
The breakdown of the polymeric component of contemporary composite dental restorative materials compromises their longevity, while leachable compounds from these materials have cellular consequences. Thus, a new generation of composite materials needed to be designed to have a longer service life and ensure that any leachable compounds are not harmful to appropriate cell lines. To accomplish this, we have developed concurrent thiol-ene-based polymerization and allyl sulfide-based addition-fragmentation chain transfer chemistries to afford cross-linked polymeric resins that demonstrate low shrinkage and low shrinkage stress...
September 6, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30081719/enamel-remineralization-with-novel-bioactive-glass-air-abrasion
#11
A A Taha, P S Fleming, R G Hill, M P Patel
Enamel demineralization or white spot lesions (WSLs) are a frequent complication associated with fixed appliance-based orthodontic treatment. The remineralization potential of a novel fluoride-containing bioactive glass (QMAT3) propelled via an air abrasion system was compared with Sylc glass and artificial saliva on artificially induced WSLs. Thirty extracted human premolars were randomly assigned into 3 groups ( n = 10) per method of treatment and scanned with optical coherence tomography and noncontact profilometer in the 4 enamel states: sound, demineralized, after glass propulsion, and after immersion in artificial saliva...
August 6, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30075090/trends-in-dental-implant-use-in-the-u-s-1999-2016-and-projections-to-2026
#12
H W Elani, J R Starr, J D Da Silva, G O Gallucci
Dental implants have become an increasingly popular treatment choice for replacing missing teeth. Yet, little is known about the prevalence and sociodemographic distribution of dental implant use in the United States. To address this knowledge gap, we analyzed data from 7 National Health and Nutrition Examination Surveys from 1999 to 2016. We estimated dental implant prevalence among adults missing any teeth for each survey period overall as stratified by sociodemographic characteristics. We calculated absolute and relative differences from 1999-2000 to 2015-2016 and fit logistic regression models to estimate changes over time...
August 3, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30074866/effects-of-starch-on-oral-health-systematic-review-to-inform-who-guideline
#13
K Halvorsrud, J Lewney, D Craig, P J Moynihan
A systematic review was conducted to update evidence on the effect of total dietary starch and of replacing rapidly digestible starches (RDSs) with slowly digestible starches (SDSs) on oral health outcomes to inform updating of World Health Organization guidance on carbohydrate intake. Data sources included MEDLINE, Embase, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, LILACS, and Wanfang. Eligible studies were comparative and reported any intervention with a different starch content of diets or foods and data on oral health outcomes relating to dental caries, periodontal disease, or oral cancer...
August 3, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30074848/etiology-of-hypomineralized-second-primary-molars-a-prospective-twin-study
#14
M J Silva, N M Kilpatrick, J M Craig, D J Manton, P Leong, D Burgner, K J Scurrah
The etiology of hypomineralized second primary molars (HSPM) is unclear, but genetic and environmental factors have been proposed. The aim of this study was to investigate the relative contribution of genes and environment to the etiology of HSPM and to identify potential environmental risk factors in a longitudinal twin cohort. Children from twin pregnancies ( N = 250) were recruited antenatally, and detailed demographic, health, and phenotypic data were collected at recruitment, 24- and 36-wk gestation, birth, and 18 mo of age...
August 3, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30067915/early-caries-in-an-in-vivo-model-structural-and-nanomechanical-characterization
#15
D T Yucesoy, H Fong, C Gresswell, S Saadat, W O Chung, S Dogan, M Sarikaya
The utilization of rat models in cariology research has made substantial contributions to decipher mechanisms of caries formation and to develop preventive treatments. The existing rat models still have potential for improvement toward establishing a more accurate standard caries protocol to utilize in testing and/or developing new dental technologies. The current caries-scoring methods rely on optical microscopy-based techniques, which necessitates formation of highly advanced lesions. Moreover, models that facilitate the implementation of cariogenic bacteria by shifting the balance of oral flora through desalivation and/or antibiotic treatment create a nonnatural environment...
August 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30067429/clinical-and-micromorphologic-29-year-results-of-posterior-composite-restorations
#16
R Montag, W Dietz, S Nietzsche, T Lang, K Weich, B W Sigusch, P Gaengler
Prospective clinical studies of composite restorations revealed their safety and longevity; however, studies did not elucidate the dynamic mechanisms of deterioration caused by fractures and secondary caries. Therefore, the aims of this 29-y controlled study were 1) to follow up on the clinical behavior of posterior composite restorations annually and 2) to compare clinical outcomes with micromorphologic scanning electron microscopy features. After ethical approval, the single-arm study commenced in 1987 with 194 class I or II primary posterior composite restorations with glass ionomer cement providing pulp protection...
August 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30067420/decellularized-swine-dental-pulp-tissue-for-regenerative-root-canal-therapy
#17
Q Alqahtani, S H Zaky, A Patil, E Beniash, H Ray, C Sfeir
In the current theme of dental pulp regeneration, biological and synthetic scaffolds are becoming a potential therapy for pulp revitalization. The goal is to provide a suitable environment for cellular infiltration, proliferation, and differentiation. The extracellular matrix (ECM) represents a natural scaffold material resembling the native tissue chemical and mechanical properties. In the past few years, ECM-based scaffolds have shown promising results in terms of progenitor cells recruitment, promotion of constructive remodeling, and modulation of host response...
August 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30049240/association-between-oral-candida-and-bacteriome-in-children-with-severe-ecc
#18
J Xiao, A Grier, R C Faustoferri, S Alzoubi, A L Gill, C Feng, Y Liu, R G Quivey, D T Kopycka-Kedzierawski, H Koo, S R Gill
Candida albicans is an opportunistic fungal organism frequently detected in the oral cavity of children with severe early childhood caries (S-ECC). Previous studies suggested the cariogenic potential of C. albicans, in vitro and in vivo, and further demonstrated its synergistic interactions with Streptococcus mutans. In combination, the 2 organisms are associated with higher caries severity in a rodent model. However, it remains unknown whether C. albicans influences the composition and diversity of the entire oral bacterial community to promote S-ECC onset...
July 26, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30004820/epstein-barr-virus-infected-plasma-cells-infiltrate-erosive-oral-lichen-planus
#19
H Raybaud, C V Olivieri, L Lupi-Pegurier, S Pagnotta, R Marsault, N Cardot-Leccia, A Doglio
Epstein-Barr virus (EBV), in addition to its transforming properties, contributes to the pathogenesis of several inflammatory diseases. Here, we investigated its involvement in oral lichen planus (OLP), a common autoimmune-like disease of unknown etiopathogenesis that can display a malignant potential. EBV-infected cells (EBV+ cells) were sought in a large series of clinically representative OLPs ( n = 99) through in situ hybridization to detect small noncoding EBV-encoded RNAs. Overall, our results demonstrated that EBV was commonly found in OLP (74%), with significantly higher frequency (83%) in the erosive form than in the reticular/keratinized type mild form (58%)...
July 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/30004817/mechanobehavior-and-ontogenesis-of-the-temporomandibular-joint
#20
J C Nickel, L R Iwasaki, Y M Gonzalez, L M Gallo, H Yao
Craniofacial secondary cartilages of the mandibular condyle and temporomandibular joint (TMJ) eminence grow in response to the local mechanical environment. The intervening TMJ disc distributes normal loads over the cartilage surfaces and provides lubrication. A better understanding of the mechanical environment and its effects on growth, development, and degeneration of the TMJ may improve treatments aimed at modifying jaw growth and preventing or reversing degenerative joint disease (DJD). This review highlights data recorded in human subjects and from computer modeling that elucidate the role of mechanics in TMJ ontogeny...
July 1, 2018: Journal of Dental Research
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