Results 21 to 30 of about 87,961 (266)

A Retrospective Study to Evaluate the Intra-Arch Dimensional Changes in Moderate Crowding Cases Treated Non Extraction with a Passive Self-Ligation Appliance [PDF]

open access: yesIranian Journal of Orthodontics, 2018
Background: Non-extraction treatment protocols are better accepted by patients as well as clinicians. Among the techniques and mechanics with the potential to facilitate non-extraction treatment includes headgears, fixed sagittal correctors, transverse ...
Vishal Bharadwaj   +6 more
doaj   +1 more source

Three-dimensional of lingual arch form and creation of templates in Iraqi normal occlusion

open access: yesJournal of Orthodontic Science, 2023
OBJECTIVES: To evaluate the lingual dental arch form types in class I canine and molar relationship based on scanning dental cast models using three-dimensional laser scan and to give a new lingual arch form pattern created on this classification to be ...
Ali Jamal Abdul Razzaq, Zaid Dewachi
doaj   +1 more source

Particle modelling of an elastic arch

open access: yesApplied Mathematical Modelling, 1985
A new particle-type of modelling has been developed for the simulation of phenomena related to the bending of an elastic arch. Application is made to the simulation of snap-through inversion and to the simulation of unstable equilibrium modes. Computer examples are described and discussed.
D. Greenspan, Casulli, Vincenzo
openaire   +3 more sources

Evaluation of Combined ARMA-ARCH and BL-ARCH models in Modeling Lake Urmia water level [PDF]

open access: yesعلوم و مهندسی آبیاری, 2017
Many nonlinear models have been developed based on the mean errors modeling. However, the non-linear models with Autoregressive conditional heteoscedasticity are based on variance modeling. These models are combined with linear models, partly to increase
Mohammad Nazeri Tahrudi   +3 more
doaj   +1 more source

Accuracy of Digital Models in Orthodontic Diagnosis

open access: yesTurkish Journal of Orthodontics, 2008
The overall objective of this study is to compare the measurements of plaster models and digital models on teeth with dental abnormalities. Pretreatment orthodontic models of 30 patients were selected from the archive of our university clinic.
Törün Özer, Celal Genç
doaj   +1 more source

Digital models: How can dental arch form be verified chairside?

open access: yesDental Press Journal of Orthodontics
Introduction: Plaster dental casts are routinely used during clinical practice to access maxillary dental arch form and assist on fabrication of individualized orthodontic archwires.
Alana Tavares   +2 more
doaj   +1 more source

The relationship between the tooth size, arch dimensions and dental crowding [PDF]

open access: yesJournal of Kerman University of Medical Sciences, 1997
In this study two groups of dental study models were selected to evaluate the relationship between the tooth size, arch dimensions , and dental crowding.
B.A Ramezanzadeh, N Shirvani
doaj  

Relationship among Lower Arch Length, Arch Width and Arch Perimeter in Crowding and Non-Crowding Groups

open access: yesBalkan Journal of Dental Medicine, 2015
Crowding is one of the causes of class I malocclusion. The purpose of the present study was to examine the relationship between arch length, arch width and arch perimeter in crowded and non-crowded arches, as well as to made comparison of the right and ...
Selmani Mimoza, Gjorgova Julijana
doaj   +1 more source

A COMPARISON OF ARCH MODELS: THE DETERMINANTS OF BITCOIN’S PRICE [PDF]

open access: yesAkademičnij Oglâd
The aim of this study is to determine the number of transactions among the currencies, which will eventually become a part of our lives, cannot be physically held, can move quickly, and emerge as a new shopping and investment tool in the changing world
Esin Demirel
doaj   +1 more source

Comparative Study of MDCT with Plaster Cast Model of Dentoalveolar Arch Morphology [PDF]

open access: yesInternational Journal of Anatomy Radiology and Surgery, 2017
Introduction: Dentoalveolar arch morphology and its measurements are of importance in various disciplines of dental science. It is usually studied by impression plaster cast models with mechanical calipers or scanned and digitized dental models ...
Nagrajmurthy, Vishwanath T Thimmaiah
doaj   +1 more source

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