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https://www.readbyqxmd.com/read/28509361/prevalence-of-dental-developmental-anomalies-of-permanent-teeth-in-children-and-their-influence-on-esthetics
#1
Anita Fekonja
OBJECTIVE: The aim of this study was to determine the prevalence of dental developmental anomalies in permanent teeth and their influence on esthetics. MATERIALS AND METHODS: The records of 473 subjects, which comprised of orthopantomograms, clinical examination, and anamnestic data, were explored for dental developmental anomalies. Subjects with dental anomalies completed the modified questionnaire. Data on reasons for seeking the treatment as well as factors affecting the patients' satisfaction were collected...
May 16, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28480847/microbiological-aspects-of-the-orthodontic-treatment
#2
A Zharmagambetova, S Tuleutayeva, S Akhmetova, A Zharmagambetov
An orthodontic appliance in the mouth worsens conditions for its self-cleaning, complicates the teeth care and makes an environment favorable to the soft tooth deposit, in turn, leads to the teeth enamel demineralization. In literature, the majority of works are devoted to the study of the microbial landscape with fixed orthodontic treatment. Despite the obvious relevance, the formation problem of opportunistic and pathogenic microorganisms when treating dentoalveolar anomalies with a removable orthodontic appliance remains understudied...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28480846/dependence-of-morphometric-parameters-of-the-dental-occlusion-on-the-type-of-the-lower-jaw-growth-in-children-with-class-ii1-dentofacial-anomalies-who-line-in-the-northern-ukraine
#3
L V Galich, V Kuroedova, Yu Lakhtin, L B Galich, P Moskalenko
The aim of the work was to study the structure of dentofacial anomalies in children and adolescents in Sumy city and Sumy oblast, to identify dentoalveolar morphological peculiarities of the occlusion in 10-13 years old patients with class ІІ1 anomalies according to Angle's classification with different types of lower jaw bone growth. A retrospective analysis of 2236 outpatient dental cards of urban and rural patients with orthodontic pathology was conducted. Patients were divided into three age groups: 6-9 years old (early mixed occlusion) - 592 children; 10-13 years old (late mixed occlusion) - 1180 children; over 13 years old (permanent occlusion) - 464 persons; besides 76 patients with class ІІ1 anomalies according to Angle's classification aged 10-13 years were examined...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28475963/variable-expressivity-of-tctex1d2-mutations-and-a-possible-pathogenic-link-of-molar-incisor-malformation-to-ciliary-dysfunction
#4
Johannes Zschocke, Anna Schossig, Dieter D Bosshardt, Daniela Karall, Rudolf Glueckert, Ines Kapferer-Seebacher
OBJECTIVE: Clarification of the molecular basis of a ciliopathy associated with molar-incisor malformation in a consanguineous Turkish family. DESIGN: Full dental and clinical examinations, histologic analysis, comprehensive genetic analyses including exome sequencing, ciliary function tests and transmission electron microscopy of ciliary biopsies in the surviving patient. RESULTS: Two siblings had situs inversus and complex heart defects suggestive of ciliary dysfunction...
April 20, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28464487/a-novel-xp22-13-microdeletion-in-nance-horan-syndrome
#5
Andrea Accogli, Monica Traverso, Francesca Madia, Tommaso Bellini, Maria Stella Vari, Francesca Pinto, Valeria Capra
BACKGROUND: Nance-Horan syndrome (NHS) is a rare X-linked developmental disorder characterized by congenital cataract, dental anomalies and facial dysmorphisms. Notably, up to 30% of NHS patients have intellectual disability and a few patients have been reported to have congenital cardiac defects. Nance-Horan syndrome is caused by mutations in the NHS gene that is highly expressed in the midbrain, retina, lens, tooth, and is conserved across vertebrate species. Although most pathogenic mutations are nonsense mutations, a few genomic rearrangements involving NHS locus have been reported, suggesting a possible pathogenic role of the flanking genes...
May 2, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28462180/prevalence-of-dentinogenesis-imperfecta-in-a-french-population
#6
Antoine Cassia, Georges Aoun, Abbass El-Outa, Gérard Pasquet, Robert Cavézian
BACKGROUND: Dentinogenesis imperfecta is a genetic disorder of the dentin occurring during the tooth development. It leads to many structural changes that can be identified clinically (brownish colored teeth, cracked enamel) and radiologically (globular crown, cervical constriction, short roots, and obliterated pulp chamber and/or root canals). The aim of this study was to determine by panoramic radiographs assessment the incidence of dentinogenesis imperfecta in a group of patients attending a specialized maxillofacial imaging center in Paris, France...
March 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28458931/dental-abnormalities-in-pituitary-dwarfism-a-case-report-and-review-of-the-literature
#7
Franco Ferrante, Sergio Blasi, Rolando Crippa, Francesca Angiero
Hypopituitarism is a disorder caused by a reduced level of trophic hormones that may be consequent on different destructive processes. The clinical manifestations depend on the type of hormone involved. A deficiency of growth hormone (GH) in children causes the lack of growth known as pituitary dwarfism. The case is reported of a patient with pituitary dwarfism, multiple dental anomalies, functional prosthetic problems, and a revision of the literature. She was subjected to prosthetic rehabilitation without surgical intervention, using zirconium substructures, thus eliminating the potential complications that may require trauma surgery...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28449295/kbg-syndrome-an-australian-experience
#8
Natalia Murray, Bronwyn Burgess, Robin Hay, Alison Colley, Sulekha Rajagopalan, Julie McGaughran, Chirag Patel, Annabelle Enriquez, Linda Goodwin, Zornitza Stark, Tiong Tan, Meredith Wilson, Tony Roscioli, Mustafa Tekin, Himanshu Goel
In 2011, heterozygous mutations in the ANKRD11 gene were identified in patients with KBG syndrome. Since then, 100 cases have been described with the expansion of the clinical phenotype. Here we present 18 KBG affected individuals from 13 unrelated families, 16 with pathogenic mutations in the ANKRD11 gene. Consistent features included intellectual disability, macrodontia, and the characteristic broad forehead with hypertelorism, and a prominent nasal bridge. Common features included hand anomalies, cryptorchidism, and a large number of palate abnormalities...
April 27, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28447407/wiedemann-rautenstrauch-syndrome-a-phenotype-analysis
#9
Stefano Paolacci, Debora Bertola, José Franco, Shehla Mohammed, Marco Tartaglia, Bernd Wollnik, Raoul C Hennekam
Wiedemann-Rautenstrauch syndrome (WRS) is a neonatal progeroid disorder characterized by growth retardation, lipodystrophy, a distinctive face, and dental anomalies. Patients reported to date demonstrate a remarkable variability in phenotype, which hampers diagnostics. We performed a literature search, and analyzed 51 reported patients, using the originally reported patients as "gold standard." In 15 patients sufficient information and photographic evidence was available to confirm the clinical diagnosis. In 12 patients the diagnosis was suggestive but lack of data prevented a definite diagnosis, and in 24 patients an alternative diagnosis was likely...
April 26, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28422132/haploinsufficiency-for-ankrd11-flanking-genes-makes-the-difference-between-kbg-and-16q24-3-microdeletion-syndromes-12-new-cases
#10
Francesca Novara, Berardo Rinaldi, Sanjay M Sisodiya, Antonietta Coppola, Sabrina Giglio, Franco Stanzial, Francesco Benedicenti, Alan Donaldson, Joris Andrieux, Rachel Stapleton, Astrid Weber, Paolo Reho, Conny van Ravenswaaij-Arts, Wilhelmina S Kerstjens-Frederikse, Joris Robert Vermeesch, Koenraad Devriendt, Carlos A Bacino, Andrée Delahaye, S M Maas, Achille Iolascon, Orsetta Zuffardi
16q24 deletion involving the ANKRD11 gene, ranging from 137 kb to 2 Mb, have been associated with a microdeletion syndrome characterized by variable cognitive impairment, autism spectrum disorder, facial dysmorphisms with dental anomalies, brain abnormalities essentially affecting the corpus callosum and short stature. On the other hand, patients carrying either deletions encompassing solely ANKRD11 or its loss-of-function variants were reported in association with the KBG syndrome, characterized by a very similar phenotype, including mild-to-moderate intellectual disability, short stature and macrodontia of upper incisors, with inter and intrafamilial variability...
June 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28396791/three-dimensional-representation-of-microdontia-of-the-maxillary-third-molar
#11
Toshiko Inoue, Makoto Saito, Fumio Nishimura, Takashi Miyazaki
Dentists and maxillofacial surgeons may occasionally encounter various dental anomalies in number, shape, size, eruption, etc. In particular, microdontia is relatively rare. Computed tomography during clinical dental examination is essential for early detection of these anomalies.
April 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28387468/sella-turcica-bridging-and-dental-anomalies-is-there-an-association
#12
Andrea Scribante, Maria Francesca Sfondrini, Marco Cassani, Danilo Fraticelli, Sergio Beccari, Paola Gandini
BACKGROUND: Sella turcica bridging (STB), or calcification of the interclinoid ligament of sella turcica, has been reported to be associated with some dental anomalies (palatal canine impaction and transposition). HYPOTHESIS OR AIM: The aim of the study was to find any association between canine impaction, hyperdontia or hypodontia and sellar dimensions or bridging. DESIGN: Lateral cephalometric radiographs from 78 patients with impacted canines, 68 with dental agenesis and 17 with hyperdontia were collected...
April 7, 2017: International Journal of Paediatric Dentistry
https://www.readbyqxmd.com/read/28387188/deep-sedation-technique-for-dental-rehabilitation-of-a-patient-with-klippel-feil-syndrome
#13
Halima Abukabbos, Michael Mahla, Abi O Adewumi
Klippel-Feil syndrome (KFS) is a congenital anomaly characterized by a defect in the formation or segmentation of the cervical vertebrae, resulting in their fusion. The clinical triad of the syndrome consists of short neck, low posterior hairline, and limited neck movement, although fewer than 50 percent of patients demonstrate all three clinical features. The short neck and its immobility and instability present a significant challenge for endotracheal intubation. The purpose of this paper is to describe the management of a 13-year-old patient with KFS, extensive dental caries, and restricted mouth opening using a deep sedation technique in the operating room, which allowed successful completion of dental treatment...
January 15, 2017: Journal of Dentistry for Children
https://www.readbyqxmd.com/read/28381879/tfap2b-mutation-and-dental-anomalies
#14
Natchaya Tanasubsinn, Rekwan Sittiwangkul, Yupada Pongprot, Katsushige Kawasaki, Atsushi Ohazama, Thanapat Sastraruji, Massupa Kaewgahya, Piranit Nik Kantaputra
Mutations inTFAP2B has been reported in patients with isolated patent ductus arteriosus (PDA) and Char syndrome. We performed mutation analysis of TFAP2B in 43 patients with isolated PDA, 7 patients with PDA with other congenital heart defects and 286 patients with isolated tooth agenesis with or without other dental anomalies. The heterozygous c.1006G>A mutation was identified in 20 individuals. Those mutation carriers consisted of 1 patient with term PDA (1/43), 16 patients with isolated tooth agenesis with or without other dental anomalies (16/286; 5...
April 6, 2017: Journal of Human Genetics
https://www.readbyqxmd.com/read/28348617/assessment-of-oral-health-related-quality-of-life-in-9-15-year-old-children-with-visual-impairment-in-uttarakhand-india
#15
Aditi Singh, Preeti Dhawan, Vivek Gaurav, Pradeep Rastogi, Shilpi Singh
BACKGROUND: To assess the prevalence of dental diseases among 9-15-year-old visually impaired children and find out its impact on their daily activities using the Child-Oral Impact on Daily Performance (C-OIDP) questionnaire in districts of Uttarakhand, India. MATERIALS AND METHODS: A total of 423 visually impaired institutionalized children between the age group of 9-15 years were included in the study. Stratified random sampling technique was used to obtain the study population...
January 2017: Dental Research Journal
https://www.readbyqxmd.com/read/28346501/a-tissue-specific-role-for-intraflagellar-transport-genes-during-craniofacial-development
#16
Elizabeth N Schock, Jaime N Struve, Ching-Fang Chang, Trevor J Williams, John Snedeker, Aria C Attia, Rolf W Stottmann, Samantha A Brugmann
Primary cilia are nearly ubiquitous, cellular projections that function to transduce molecular signals during development. Loss of functional primary cilia has a particularly profound effect on the developing craniofacial complex, causing several anomalies including craniosynostosis, micrognathia, midfacial dysplasia, cleft lip/palate and oral/dental defects. Development of the craniofacial complex is an intricate process that requires interactions between several different tissues including neural crest cells, neuroectoderm and surface ectoderm...
2017: PloS One
https://www.readbyqxmd.com/read/28326102/impacted-maxillary-canine-prevalence-and-its-association-with-other-dental-anomalies-in-a-mexican-population
#17
José Rubén Herrera-Atoche, María Del Rosario Agüayo-de-Pau, Mauricio Escoffié-Ramírez, Fernando Javier Aguilar-Ayala, Bertha Arelly Carrillo-Ávila, Marina Eduviges Rejón-Peraza
Objective. We quantified the prevalence of impacted maxillary canines (IMC) and their association with other dental anomalies (DAs). Materials and Methods. A retrospective study was done with 860 patients 12 to 39 years of age. The prevalence of IMC was calculated and compared by sex. The sample was divided into a control group and an impaction group, and the prevalence was calculated in both for a series of anomalies: agenesis, supernumerary teeth, shape anomalies of the upper laterals (microdontia, peg and barrel shape, and talon cusp), fusion, gemination, other impacted teeth, transposition, and amelogenesis imperfecta...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28321341/singleton-merten-syndrome-a-rare-cause-of-early-onset-aortic-stenosis
#18
Harshavardhan Ghadiam, Sudhir Mungee
Singleton Merten syndrome (SMS) is a rare autosomal dominant genetic disorder with variable expression. Its characteristic features include abnormal aortic calcification, abnormal ossification of extremities, and dental anomalies. We present a young man with dyspnea who was noted to have aortic stenosis in the background of glaucoma, psoriasis, dental anomalies, hand and foot deformities, Achilles tendinitis, osteopenia, and nephrolithiasis. The conglomeration of features led to the diagnosis of SMS. His mother had a very similar phenotype...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28295540/v-atpases-containing-a3-subunit-play-a-direct-role-in-enamel-development-in-mice
#19
Lisa Johnson, Bernhard Ganss, Andrew Wang, Ralph A Zirngibl, Danielle E Johnson, Celeste Owen, Grace Bradley, Irina Voronov
Vacuolar H(+) -ATPases (V-ATPases) are ubiquitous multisubunit proton pumps responsible for organellar pH maintenance. Mutations in the a3 subunit of V-ATPases cause autosomal recessive osteopetrosis, a rare disease due to impaired bone resorption. Patients with osteopetrosis also display dental anomalies, such as enamel defects; however, it is not clear whether these enamel abnormalities are a direct consequence of the a3 mutations. We investigated enamel mineralization, spatiotemporal expression of enamel matrix proteins and the a3 protein during tooth development using an osteopetrotic mouse model with a R740S point mutation in the V-ATPase a3 subunit...
March 11, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28288294/a-retrospective-study-of-association-between-peg-shaped-maxillary-lateral-incisors-and-dental-anomalies
#20
Jae-Hwan Kim, Nam-Ki Choi, Seon-Mi Kim
OBJECTIVE: The purpose of this study was to investigate the prevalence of peg-shaped maxillary lateral incisors and the incidence of associated dental anomalies in children. STUDY DESIGN: We investigated the prevalence of peg-laterals and incidence of associated dental anomalies in 3,834 children aged 7-15 who visited the Department of Pediatric Dentistry from January 2010 to December 2015 and underwent panoramic radiographs. RESULTS: The prevalence of peg-laterals was 1...
2017: Journal of Clinical Pediatric Dentistry
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