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https://www.readbyqxmd.com/read/29779288/-advances-in-surgical-techniques-of-periodontal-corticotomy
#1
Si-Yu Wang, Zhen-Dong Wang, Bin Yan
The number of adults seeking orthodontic treatment is increasing. Shortening the course of orthodontic treatment has become a research hotspot in recent years. Methods of accelerating tooth movement have been reported. Theoretical and clinical studies have confirmed that periodontal corticotomy is effective in accelerating tooth movement and increasing osteogenic potential. Many surgical techniques of periodontal corticotomy have been developed. This review summarizes the history of periodontal corticotomy and the development of the surgical techniques in recent years, thereby providing references for the clinical application of corticotomy...
April 1, 2018: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29779218/an-analysis-of-the-timing-and-materials-associated-with-pulp-disease-following-restorative-dental-treatment
#2
J B Yong, S Sivarajan, P V Abbott
AIM: To assess whether the timing of pulp disease after tooth restoration was associated with type of restorative dental material used, extent of the restoration, or tooth type. METHODOLOGY: A comprehensive search and analysis of data using the Titanium Oral Health Management software program at The Oral Health Centre of Western Australia was performed to correlate procedural codes for teeth that had restorations placed and subsequently developed pulp disease requiring endodontic treatment or extraction from 1st January 2009 to 31st December 2013...
May 19, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/29777011/fox-proteins-are-modular-competency-factors-for-facial-cartilage-and-tooth-specification
#3
Pengfei Xu, Bartosz Balczerski, Amanda Ciozda, Kristin Louie, Veronika Oralova, Ann Huysseune, J Gage Crump
Facial form depends on the precise positioning of cartilage, bone, and tooth fields in the embryonic pharyngeal arches. How complex signaling information is integrated to specify these cell types remains a mystery. We find that modular expression of Forkhead-domain transcription factors (Fox) in the zebrafish face arises through integration of Hh, Fgf, Bmp, Edn1, and Jagged-Notch pathways. Whereas loss of C-class Fox proteins results in reduced upper facial cartilages, loss of F-class Fox proteins results in distal jaw truncations and absent midline cartilages and teeth...
May 18, 2018: Development
https://www.readbyqxmd.com/read/29772684/the-changing-landscape-in-the-genetic-etiology-of-human-tooth-agenesis
#4
REVIEW
Meredith A Williams, Ariadne Letra
Despite much progress in understanding the genetics of syndromic tooth agenesis (TA), the causes of the most common, isolated TA remain elusive. Recent studies have identified novel genes and variants contributing to the etiology of TA, and revealed new pathways in which tooth development genes belong. Further, the use of new research approaches including next-generation sequencing has provided increased evidence supporting an oligogenic inheritance model for TA, and may explain the phenotypic variability of the condition...
May 16, 2018: Genes
https://www.readbyqxmd.com/read/29770323/dental-mesenchymal-stem-cell-based-translational-regenerative-dentistry-from-artificial-to-biological-replacement
#5
REVIEW
Mona K Marei, Rania M El Backly
Dentistry is a continuously changing field that has witnessed much advancement in the past century. Prosthodontics is that branch of dentistry that deals with replacing missing teeth using either fixed or removable appliances in an attempt to simulate natural tooth function. Although such "replacement therapies" appear to be easy and economic they fall short of ever coming close to their natural counterparts. Complications that arise often lead to failures and frequent repairs of such devices which seldom allow true physiological function of dental and oral-maxillofacial tissues...
2018: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/29770241/methods-for-quantitative-measurement-of-tooth-wear-using-the-area-and-volume-of-virtual-model-cusps
#6
Soo-Hyun Kim, Young-Seok Park, Min-Kyoung Kim, Sulhee Kim, Seung-Pyo Lee
Purpose: Clinicians must examine tooth wear to make a proper diagnosis. However, qualitative methods of measuring tooth wear have many disadvantages. Therefore, this study aimed to develop and evaluate quantitative parameters using the cusp area and volume of virtual dental models. Methods: The subjects of this study were the same virtual models that were used in our former study. The same age group classification and new tooth wear index (NTWI) scoring system were also reused...
April 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29768437/oral-health-status-in-historic-population-macroscopic-and-metagenomic-evidence
#7
Claire Willmann, Xavier Mata, Kristian Hanghoej, Laure Tonasso, Lenka Tisseyre, Céline Jeziorski, Elodie Cabot, Pierre Chevet, Eric Crubézy, Ludovic Orlando, Rémi Esclassan, Catherine Thèves
Recent developments in High-Throughput DNA sequencing (HTS) technologies and ancient DNA (aDNA) research have opened access to the characterization of the microbial communities within past populations. Most studies have, however, relied on the analysis of dental calculus as one particular material type particularly prone to the molecular preservation of ancient microbial biofilms and potential of entire teeth for microbial characterization, both of healthy communities and pathogens in ancient individuals, remains overlooked...
2018: PloS One
https://www.readbyqxmd.com/read/29768336/primary-diffuse-large-b-cell-lymphoma-in-the-maxilla-a-case-report
#8
Haixiao Zou, Haili Yang, Yuan Zou, Lang Lei, Li Song
RATIONALE: Lymphomas are the second most common non-epithelial malignant tumors in the oral and maxillofacial region. Non-Hodgkin's lymphoma (NHL) develops at extranodal sites, and cases involving the maxilla account for less than 1% of all NHLs. We describe a case of diffuse large B-cell lymphoma (DLBCL) in the maxilla, and highlight the clinical signs, symptoms, differential diagnosis, and appropriate treatment of DLBCL in the oral cavity and maxillofacial region. PATIENT CONCERNS: A 67-year-old woman was admitted to our surgical department with pain and swelling in her right upper posterior teeth for about six months...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29765908/the-subgingival-microbiome-of-periodontal-pockets-with-different-probing-depths-in-chronic-and-aggressive-periodontitis-a-pilot-study
#9
Meng Shi, Yiping Wei, Wenjie Hu, Yong Nie, Xiaolei Wu, Ruifang Lu
Periodontitis is a kind of infectious disease initiated by colonization of subgingival periodontal pathogens, which cause destruction of tooth-supporting tissues, and is a predominant threat to oral health as the most common cause of loss of teeth. The aim of this pilot study was to characterize the subgingival bacterial biodiversity of periodontal pockets with different probing depths in patients with different forms of periodontitis. Twenty-one subgingival plaque samples were collected from three patients with chronic periodontitis (ChP), three patients with aggressive periodontitis (AgP) and three periodontally healthy subjects (PH)...
2018: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29765689/a-new-archaic-baleen-whale-toipahautea-waitaki-early-late-oligocene-new-zealand-and-the-origins-of-crown-mysticeti
#10
Cheng-Hsiu Tsai, R Ewan Fordyce
A new genus and species of extinct baleen whale † Toipahautea waitaki (Late Oligocene, New Zealand) is based on a skull and associated bones, from the lower Kokoamu Greensand, about 27.5 Ma (local upper Whaingaroan Stage, early Chattian). The upper jaw includes a thin, elongate and apparently toothless maxilla, with evidence of arterial supply for baleen. Open sutures with the premaxilla suggest a flexible (kinetic) upper jaw. The blowhole is well forward. The mandible is bowed laterally and slightly dorsally; unlike the Eomysticetidae, there are no mandibular alveoli, and the coronoid process is tapered and curved laterally...
April 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29760815/long-term-effects-of-acute-myeloid-leukemia-treatment-on-the-oral-system-in-a-pediatric-patient
#11
Saturnino Marco Lupi, Arianna Rodriguez Y Baena, Gabriele Cervino, Claudia Todaro, Silvana Rizzo
Introduction: Acute Myeloid Leukemia (AML) in pediatric patients is a serious disease, although, for the subgroup of patients who receive proper treatment, a long-term survival rate above 50% is typical. The cycles of chemo- and radiotherapy used to treat AML can impair dental development. Case Report: Herein, we describe the oral condition of a 25-year-old male patient treated for AML with chemo- and radiotherapy from 5 to 7 years of age; his AML has remained in remission for the past 18 years...
2018: Open Dentistry Journal
https://www.readbyqxmd.com/read/29758290/proteome-response-of-dental-pulp-cells-to-exogenous-fgf8
#12
Rozaliya Tsikandelova, Petko Mladenov, Sébastien Planchon, Silvia Kalenderova, Maria Dragneva, Zornitsa Mihaylova, Pavel Stanimirov, Vanyo Mitev, Jenny Renaut, Nikolay Ishkitiev
FGF8 specifies early tooth development by directing the migration of the early tooth founder cells to the site of tooth emergence. To date the effect of the FGF8 in adult dental pulp has not been studied. We have assessed the regenerative potential of FGF8 by evaluating changes in the proteome landscape of dental pulp following short- and long-term exposure to recombinant FGF8 protein. In addition, we carried out qRT PCR analysis to determine extracellular/adhesion gene marker expression and assessed cell proliferation and mineralization in response to FGF8 treatment...
May 11, 2018: Journal of Proteomics
https://www.readbyqxmd.com/read/29755618/wear-of-resin-composites-current-insights-into-underlying-mechanisms-evaluation-methods-and-influential-factors
#13
REVIEW
Akimasa Tsujimoto, Wayne W Barkmeier, Nicholas G Fischer, Kie Nojiri, Yuko Nagura, Toshiki Takamizawa, Mark A Latta, Masashi Miazaki
The application of resin composites in dentistry has become increasingly widespread due to the increased aesthetic demands of patients, improvements in the formulation of resin composites, and the ability of these materials to bond to tooth structures, together with concerns about dental amalgam fillings. As resistance to wear is an important factor in determining the clinical success of resin composite restoratives, this review article defines what constitutes wear and describes the major underlying phenomena involved in this process...
May 2018: Japanese Dental Science Review
https://www.readbyqxmd.com/read/29753777/surgically-assisted-rapid-palatal-expansion-in-class-iii-malocclusion-our-experience
#14
A Barrabé, C Meyer, H Bonomi, Weber Elise, N Sigaux, A Louvrier
INTRODUCTION: Maxillary transverse deficiency (MTD) is a common facial disharmony that may need surgical assisted rapid palatal expansion (SARPE). The aim of this study was to present our SARPE technique and to report about our experience. MATERIEL AND METHOD: Medical records of all class III patients who underwent SARPE in our department from 2010 to 2015 and for whom a follow-up of at least 1 year was available, were included in a retrospective study. The technic consisted, after short orthodontic preparation allowing for divergence of the upper central incisors, in a complete Le Fort I osteotomy without down fracture, and medial sagittal submucosal separation of the hard palate under general anesthesia in an inpatient procedure...
May 10, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29752597/the-higher-prevalence-of-developmental-defects-of-enamel-in-the-dioxin-affected-region-than-non-dioxin-affected-region-result-from-a-cross-sectional-study-in-vietnam
#15
Vo Truong Nhu Ngoc, Le Thi Huong, Bui Van Nhon, Ngo Thi Minh Tan, Pham Van Thuc, Vo Thi Thu Hien, Truong Manh Dung, Ngo Van Toan, Le Quynh Anh, Le Hoang Son, Thien Chu-Dinh, Dinh-Toi Chu
Developmental defects of enamel (DDE) are induced and regulated by several factors including genetics and the environment. There is evidence showing that dioxin in polluted areas has a strong effect on the health and development of teeth. However, there has been no study on DDE in the dioxin-affected regions in Vietnam. To identify the effect of dioxin on the prevalence of DDE in studied areas in Vietnam, a cross-sectional study was conducted in 2200 adults in the A Luoi district in the Thua Thien Hue province (the dioxin-affected region) and in the Kim Bang district in the Ha Nam province (dioxin-unaffected region) in 2015...
May 11, 2018: Odontology
https://www.readbyqxmd.com/read/29750631/analysis-of-biomechanical-effects-of-different-sites-and-modes-of-orthodontic-loading-on-arch-expansion-in-a-preadolescent-mandible-an-fea-study
#16
Ajmera Deepal Haresh, Singh Pradeep, Jinlin Song, Chao Wang, Yubo Fan
INTRODUCTION: The aim of commencing treatment in younger age is to rectify the developing dento-alveolar, skeletal and muscular imbalances. With growing dependence on arch development and expansion, the pendulum is oscillating more towards the non-extraction treatment lately, in resolving constriction and crowding issues. Since, a limited number of attempts have been made for mandibular expansion, this study aimes to evaluate the effect of different modes and sites of loading on the expansion of preadolescent mandible using biomechanics...
May 11, 2018: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/29745813/pleiotropic-function-of-dlx3-in-amelogenesis-from-regulating-ph-and-keratin-expression-to-controlling-enamel-rod-decussation
#17
Olivier Duverger, Maria I Morasso
DLX3 is essential for tooth enamel development and is so far the only transcription factor known to be mutated in a syndromic form of amelogenesis imperfecta. Through conditional deletion of Dlx3 in the dental epithelium in mouse, we have previously established the involvement of DLX3 in enamel pH regulation, as well as in controlling the expression of sets of keratins that contribute to enamel rod sheath formation. Here, we show that the decussation pattern of enamel rods was lost in conditional knockout animals, suggesting that DLX3 controls the coordinated migration of ameloblasts during enamel secretion...
December 2018: Connective Tissue Research
https://www.readbyqxmd.com/read/29745448/early-development-of-the-human-dentition-revisited
#18
REVIEW
Maria Hovorakova, Herve Lesot, Miroslav Peterka, Renata Peterkova
In this review, classical data on the early steps in human odontogenesis are summarized and updated with specific insights into the development of the upper and lower embryonic jaws to help in understanding some oral pathologies. The initial step of human odontogenesis is classically characterized by two parallel horseshoe-shaped epithelial laminae. These originate from the oral epithelium and an ingrowth into the jaw mesenchyme: the internal dental lamina gives rise to deciduous tooth primordia, while the external vestibular lamina represents the developmental base of the oral vestibule...
May 10, 2018: Journal of Anatomy
https://www.readbyqxmd.com/read/29744957/mitochondrial-lineage-a2ah-found-in-a-pre-hispanic-individual-from-the-andean-region
#19
M G Russo, C B Dejean, S A Avena, V Seldes, P Ramundo
OBJECTIVES: The aim of this study was to contribute to the knowledge of pre-Hispanic Andean mitochondrial diversity by analyzing an individual from the archaeological site Pukara de La Cueva (North-western Argentina). The date of the discovery context (540 ± 60 BP) corresponds to the Regional Developments II period. METHODS: Two separate DNA extractions were performed from dentin powder of one tooth. HVR I was amplified by PCR from each extract in three overlapping fragments and the haplotype was determined by consensus among all obtained sequences...
May 10, 2018: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/29744586/a-systematic-review-and-meta-analysis-of-the-fully-formed-wisdom-tooth-as-a-radiological-marker-of-adulthood
#20
Mattias Haglund, Håkan Mörnstad
Assessment of third molar development on dental radiograms is one of the most commonly used methods of forensic age estimation. Despite widespread use and numerous studies, there is a paucity of aggregated data on how well a fully mature third molar identifies adulthood (> 18 years), the most important threshold in a medicolegal context. Therefore, a systematic review and meta-analysis was conducted. A total of 1229 studies were screened, and 82 studies were assessed for inclusion. Twenty-four studies, with a pooled cohort of 19,690 individuals, presented true positive (TP), true negative (TN), false positive (FP), and false negative (FN) outcomes, enabling meta-analysis...
May 10, 2018: International Journal of Legal Medicine
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