Temat: tooth - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: ʺStomatologyʺ in functional endoscopic sinus surgery – 2 case reports
Autorzy:: Kołodziejczyk, Paulina
Gotlib, Tomasz
Tematy:: ectopic tooth
nasal tooth
tooth in maxillary sinus; Pokaż więcej
Wydawca:: Index Copernicus International
Powiązania:: https://bibliotekanauki.pl/articles/1399905.pdf Link otwiera się w nowym oknie
Opis:: Functional endoscopic sinus surgery (FESS) is most commonly used in chronic rhinosinusitis treatment. This method is also applicable to other diseases, including the treatment of symptomatic ectopic teeth. Ectopic teeth are a quite rare phenomenon. They may appear within the facial region, as well as in other parts of the body. The article describes two cases of ectopic teeth appearing within the nose area and paranasal sinuses, there endoscopic surgery has been used in the extraction, which resulted in the remission of symptoms.
Dostawca treści:: Biblioteka Nauki

Artykuł

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Skocz do pozycji: 2.

Tytuł:: The Tooth Betwixt: An Aesthetic Impediment – A Case of Mesiodens
Autorzy:: Ashok, Navami
Pauly, Geon
Tematy:: Incisor
Supernumerary Tooth
Tooth Abnormalities; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1109097.pdf Link otwiera się w nowym oknie
Opis:: The word ‘supernumerary’ means something which is present in excess of the normal or requisite number. Mesiodens are supernumerary teeth with a common prevalence in the maxillary midline. Given their high frequency, dentists should be aware of the signs and symptoms of mesiodens and the appropriate treatment indicated. The following case highlights the presence of a mesiodens in a 36-year-old male.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Dwuletnia kliniczna obserwacja stałych zębów przednich po zabiegu replantacji u pacjentów w wieku rozwojowym
Autorzy:: Molek, Katarzyna
Jurczak, Anna
Kościelniak, Dorota
Stachura-Spłuszka, Anna
Opis:: Introduction: Tooth avulsion is a condition in which the tooth loses contact with the socket, followed by rupture of periodontal structures and the neurovascular fascicle. Dental traumas of this type are between 0.5-16% of all traumatic lesions of permanent teeth and concern mostly boys aged 7-10. The dislocation occurrence, favouring factor are total malocclusions of teeth especially distocclusion with protrusion of upper incisors. The consequence of tooth loss is underdevelopment of the alveolar bone and defects of articulation and feeding. Aesthetic concerns are also not unimportant. Replantation is the accepted treatment of choice in case of avulsion, it is the repositioning of a tooth avulsed as a result of trauma into its alveolus. Aim: The aim of this study is to describe cases of completely dislocated permanent anterior teeth after replantation and a two-year clinical evaluation of treatment results. Material and methods: In three patients, aged 7-13 the replantation of completely dislocated anterior teeth was done. Outcame results after two years treatment were evaluated through clinical trial and X-ray radiography. The complications following reimplantation were described. Results: In the described cases positive results of treatment were achieved through the stabilization of replanted teeth. Conclusions: Two-year clinical observation showed however, that properly performed replantation surgery does not ensure the absence of future post treatment complications. The assessment confirmed the validity of tooth replantation after avulsion. There was also payd attention on the importance of cooperation between the patients, their guardians and physicians. The treatment success depends on: how long the tooth has been out of the socket and kept dry, kind of transport medium, time period of splinting, the age and general condition of the patient and the stage of root development of the replantated tooth. Every of these factors has an impact on complications such as: death of the pulp, obliteration of the pulp canal, ankylosis and resorption of dental tissues.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 4.

Tytuł:: Morphology of mandibular incisors : a study on CBCT
Autorzy:: Ghodke, Monali
Kamtane, Smita
Opis:: BACKGROUND: The aim of the study was to identify the number of root canals and examine root canal morphology of permanent mandibular incisors in an Indian sub-population of Pune, Maharashtra, India using cone-beam computed tomography (CBCT). MATERIAL AND METHODS: This study was conducted at Elite CBCT & Dental Diagnostics, Pune. One hundred mandibular incisors were evaluated for the number of root, root canals and root morphology. RESULTS: In the present study, amongst 102 mandibular incisors, all had one root, 36% of them had a second canal, and Vertucci Type I was the most common type. CONCLUSIONS: CBCT imaging is an excellent method for detection of different canal configurations of mandibular incisors.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 5.

Tytuł:: The first Devonian holocephalian tooth from Poland
Autorzy:: Ginter, M
Piechota, A.
Tematy:: Famennian
phylogenesis
Cochliodontiformes
Holocephali
holocephalian tooth
tooth
paleontology
Chondrichthyes; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Powiązania:: https://bibliotekanauki.pl/articles/22410.pdf Link otwiera się w nowym oknie
Opis:: A recently found “bradyodont” holocephalian tooth from bituminous shales of the Kowala Quarry, south−western Holy Cross Mountains, Poland, dated as the middle Famennian Palmatolepis trachytera conodont Zone, is described. In spite of its resemblance to the forms often attributed to Helodus, the tooth is referred to as Psephodus cf. magnus (Agassiz, 1838), and supposed to represent the anterior part of the dentition, based on a partly articulated specimen of Psephodus from the Carboniferous of Scotland. The analysis of early helodonts and psephodonts, and other Famennian chondrichthyan crushing teeth, shows numerous similarities in tooth−base structure, such as the reduction of lingual basal extension, loss of articulation devices, development of numerous nutritive foramina, and the tendency to fusion between the teeth in a tooth−family. Based on these shared characters, close phylogenetic relationships between the Protacrodontoidea, Hybodontoidea, and the Holocephali are postulated.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Cementum layers and tooth wear as criteria for ageing Roe deer (Capreolus capreolus)
Autorzy:: Aitken, R. J.
Wydawca:: Wiley-Blackwell
Powiązania:: Journal of Zoology, Lond.
Dostawca treści:: RCIN - Repozytorium Cyfrowe Instytutów Naukowych

Książka

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Skocz do pozycji: 7.

Tytuł:: New teeth of allotherian mammals from the English Bathonian, including the earliest multituberculates
Autorzy:: Butler, P M
Hooker, J.J.
Tematy:: English Bathonian
tooth cusp
mammal
tooth
Allotheria
Jurassic
Bathonian
multituberculate
Haramiyida
dentition
new tooth
paleontology
Multituberculata; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Powiązania:: https://bibliotekanauki.pl/articles/22031.pdf Link otwiera się w nowym oknie
Opis:: Twenty one isolated multituberculate−like teeth are described from the Forest Marble (late Bathonian) of Oxfordshire and Dorset, England. Eighteen are additional to the teeth described as Eleutherodon oxfordensis by Kermack et al. (1998), and three of those are placed in new taxa. Six new molars of Eleutherodon provide further information on variation in size, proportion and root pattern. Millsodon superstes gen. et sp. nov. (family indeterminate), based on first and last lower molars and a referred upper molar, has resemblances to Haramiyidae and Theroteinidae. Kirtlingtonia catenata gen. et sp. nov. (family indeterminate), based on last upper molars and a probable upper premolar, has a slight resemblance to Eleutherodon, and also to M2 of some paulchoffatiid multituberculates. Kermackodon multicuspis gen. et sp. nov. (family Kermackodontidae nov.) and Hahnotherium antiquum gen. et sp. nov. (family Hahnotheriidae nov.) are based on second upper molars, recognised as multituberculate by their horizontal wear and inferred occlusal displacement with respect to m2. A lower molar referred to H. antiquum confirms this. A blade−like lower premolar and an upper premolar with conical cusps, referred to Kermackodon, are multituberculate−like, but distinctive. Divergence between the two Bathonian multituberculates indicates that the order originated much earlier, more probably from a haramiyid than from a morganucodontid source. Mojo is regarded as probably a haramiyid. The Hahnodontidae, which have basined wear, are removed from the Multituberculata to the “Haramiyida”.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Variation in premaxillary tooth count and a developmental abnormality in a tyrannosaurid dinosaur
Autorzy:: Miyashita, T.
Tanke, D.H.
Currie, P.J.
Tematy:: paleontology
tooth variation
premaxillary tooth
tooth
developmental abnormality
tyrannosaurid dinosaur
Dinosauria
Theropoda
Tyrannosauridae
tooth count
developmental regulation
Dinosaur Park Formation
Alberta city
Canada; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Powiązania:: https://bibliotekanauki.pl/articles/23378.pdf Link otwiera się w nowym oknie
Opis:: 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. Based on these observations, a tyrannosaurid left premaxilla with three teeth (TMP 2007.20.124) is an interesting deviation and represents an unusual individual of Daspletosaurus sp. with a developmental abnormality. The lower number of teeth is coupled with relatively larger alveoli, each of which is capable of hosting a larger than normal tooth. This indicates that tooth size and dental count vary inversely, and instances of reduction in tooth count may arise from selection for increased tooth size. On the other hand, the conservative number of premaxillary teeth in most theropods implies strong developmental constraints and a functional trade−off between the dimensions of the premaxillary alveolar margin and the size of the teeth. In light of recent advances in the study of tooth morphogenesis, tooth count is a function of two parameters: dimensions of an odontogenic field for a tooth series, and dimensions of tooth positions. A probable developmental cause for the low tooth count of TMP 2007.20.124 is that the dimensions of the alveoli expanded by approximately a third during tooth morphogenesis. Numerical traits such as tooth count are difficult to treat in a phylogenetic analysis. When formulating a phylogenetic character, a potential alternative to simply counting is to rely on the morphological signature for developmental parameters that control the number of the element in question.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Use of autologous dentin matrix in bone defects augmentation — a literature review
Autorzy:: Wysłouch, Ewa
Sipika, Artur
Grabowska-Jasik, Natalia
Tyrakowski, Michał
Kaczmarzyk, Tomasz
Szuta, Mariusz
Tematy:: autologous dentin matrix
tooth-derived matrix
dentin graft
biomaterials
tooth graft
demineralized dentin matrix
PRF
sticky tooth; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:: https://bibliotekanauki.pl/articles/57113782.pdf Link otwiera się w nowym oknie
Opis:: A number of regenerative materials are currently used to regenerate or preserve the alveolar process. One of these is autogenous dentin matrix. With many valuable properties such as easy availability, simple preparation, low cost, low risk of disease transmission and no risk of triggering an immune response against the graft, autogenous dentin matrix appears to be a very good material of choice. The following article is intended to provide an overview of the use of autogenous dentin matrix.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Modification of the Tooth Geometry of a Polymer GEAR with a Straight Tooth Line to Adjust the Torque Transmission Capability in One Direction Only
Autorzy:: Strojny, Piotr
Tematy:: gears
tooth strength
tooth geometry modification
topological optimization
kinetic simulation; Pokaż więcej
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie
Powiązania:: https://bibliotekanauki.pl/articles/2081498.pdf Link otwiera się w nowym oknie
Opis:: This paper describes a methodology for modifying a tooth for the ability to transmit torque in one direction only. It presents two methods (analytical and numerical) of tooth mass reduction while maintaining functional features of the whole transmission. The results of the above mentioned methodology are presented on the example of a mass-produced transmission.
Dostawca treści:: Biblioteka Nauki

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