Results 11 to 20 of about 53,250 (339)

Tooth number abnormality: from bench to bedside [PDF]

open access: goldInternational Journal of Oral Science, 2023
AbstractTooth number abnormality is one of the most common dental developmental diseases, which includes both tooth agenesis and supernumerary teeth. Tooth development is regulated by numerous developmental signals, such as the well-known Wnt, BMP, FGF, Shh and Eda pathways, which mediate the ongoing complex interactions between epithelium and ...
Han Zhang   +4 more
openalex   +4 more sources

Neuroblastoma and tooth abnormalities: A common history? [PDF]

open access: greenOral Oncology, 2013
Neuroblastoma, a malignant tumor of the sympathetic nervous system and the most common extracranial solid tumor in childhood, arises from embryonic neural crest cells. Tooth development begins before birth and continues for 12-14 years with the development of the third molar for several years.
Caroline Abadie   +3 more
openalex   +5 more sources

Abnormal vascular reflexes in Charcot-Marie-Tooth disease. [PDF]

open access: bronzeJournal of Neurology, Neurosurgery & Psychiatry, 1980
Vascular reflexes were assessed in 17 adult patients with Charcot-Marie-Tooth disease using the Valsalva manoeuvre, and the pulse rate and systolic blood pressure responses to standing. Six patients showed abnormalities consistent with an autonomic neuropathy.
A P Brooks
openalex   +4 more sources

Tooth Clenching Induces Abnormal Cerebrovascular Responses in Migraineurs [PDF]

open access: goldFrontiers in Neurology, 2018
Prevalence of masticatory parafunctions, such as tooth clenching and grinding, is higher among migraineurs than non-migraineurs, and masticatory dysfunctions may aggravate migraine. Migraine predisposes to cerebrovascular disturbances, possibly due to impaired autonomic vasoregulation, and sensitization of the trigeminovascular system.
Nina Zaproudina   +7 more
openalex   +9 more sources

Variation in Premaxillary Tooth Count and a Developmental Abnormality in a Tyrannosaurid Dinosaur [PDF]

open access: goldActa Palaeontologica Polonica, 2010
Premaxillary tooth count tends to be stable amongst toothed dinosaurs, and most theropods have four teeth in each premaxilla. Only one case of bilaterally asymmetric variation is known in theropod premaxillary dentition, and there is no record of ontogenetic or individual variation in premaxillary tooth count.
Tetsuto Miyashita   +2 more
openalex   +6 more sources

Segmented mechanics for traction of impacted maxillary canine: case report with a 3-year follow-up

open access: yesBioscience Journal, 2019
Young patients are increasingly concerned with smile aesthetics, resulting in the early visit to the dental office. It is of great importance that professionals such as orthodontists, pediatric dentists, and general practitioners are aware of the ...
Anderson Paulo Barbosa Lima   +5 more
doaj   +3 more sources

Tooth Separations and Abnormal Noise on Power-Transmission Gears

open access: bronzeBulletin of JSME, 1967
Some theoretical analyses and experimental investigations are performed to give a solution to the separation of tooth meshing, which is accompanied with alarming noise or occasionally abnormal noise. Tooth separation occurs at the specific speed defined by the amount of transmission error and tangential load.
Kantaro NAKAMURA
openalex   +4 more sources

Supernumerary Maxillary Canine along with Transposition: A Case Report [PDF]

open access: yesMajallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Shahīd Ṣadūqī Yazd, 2023
Introduction: Tooth transposition is considered as the anomaly of tooth position in two adjacent teeth; the most frequent locations include canine and first maxillary premolar.
Farida Ghazanfari Moghaddam   +2 more
doaj  

The Biology Underlying Abnormalities of Tooth Number in Humans [PDF]

open access: yesJournal of Dental Research, 2017
In past decades, morphologic, molecular, and cellular mechanisms that govern tooth development have been extensively studied. These studies demonstrated that the same signaling pathways regulate development of the primary and successional teeth. Mutations of these pathways lead to abnormalities in tooth development and number, including aberrant tooth
Emma Juuri, Anamaria Balic
openaire   +3 more sources

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