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Articles 151 - 153 of 153
Full-Text Articles in Dentistry
Light-Activation Influence On The Thermal Analysis Of A Resin-Modified Glass-Ionomer, Raksha Srinivas
Light-Activation Influence On The Thermal Analysis Of A Resin-Modified Glass-Ionomer, Raksha Srinivas
Master's Theses (2009 -)
The acid-base and light polymerization reactions in resin modified glass ionomers (RMGI) have been shown to compete and possibly inhibit one another during early RMGI development. Earlier beginning times of light polymerization initiation may limit the acid-base reaction and if time allowed for the acid-base components to react is increased, the extent of light cure reaction may be lesser. The thermal behavior of a commercially available RMGI was investigated in relation to a light initiation regimen using a differential scanning calorimeter (DSC). The relationship between delay in light initiation or no light initiation and the resultant set matrix of the …
Application Of Mechanical Vibration To Modulate Orthodontic Tooth Movement (Otm) In Mice, Andrew Rummel
Application Of Mechanical Vibration To Modulate Orthodontic Tooth Movement (Otm) In Mice, Andrew Rummel
Master's Theses (2009 -)
Purpose: The purpose of this study was to use micro CT to evaluate the effect of mechanical vibration on orthodontic tooth movement (OTM) in mice. Materials and Methods: Thirty-six mice (C57BL/6, 20 weeks old, male) were randomly divided into four groups: spring/vibration (SV), spring only (S), vibration only (V), control (C). A nickel-titanium (NiTi) spring was fabricated and inserted bilaterally between the maxillary 1st molars, delivering an initial force of 20 grams. From day 0, mechanical vibration (4Hz frequency, 20micron displacement, 5 min per session duration) was applied to the left maxillary 1st molar every three days for 3 weeks …
Incidence Of Removable Partial Denture Types In Eastern Wisconsin, Deo K. Pun
Incidence Of Removable Partial Denture Types In Eastern Wisconsin, Deo K. Pun
Master's Theses (2009 -)
Aim: This study was designed to investigate patterns of tooth loss in patients receiving removable partial dentures.
Materials and Method: A point and shoot digital camera was used to collect 1502 digital images of cases at 5 dental laboratories in the eastern portion of the state of Wisconsin. Any case presenting to one the dental laboratories requesting a RPD was included. Two photographs were taken of each case. The first photograph was taken immediately upon arrival to the lab while the second photograph was taken immediately prior its first departure. A calibrated investigator analyzed all the photographs for Kennedy classification, …