搜索结果: 1-15 共查到“口腔正畸学 Dental”相关记录164条 . 查询时间(0.156 秒)
Psychosocial Impact of Dental Esthetics on Quality of Life in Adolescents
Dental esthetics Malocclusion Adolescents
2010/3/9
Objective: To test the hypothesis that several dimensions of the self-perceived psychosocial impacts of dental esthetics are not associated with grades of malocclusion, oral health–related quality-of-...
Opinions of American and Swedish Orthodontists about the Role of Erupting Third Molars as a Cause of Dental Crowding
Third molars Crowding Anterior forces
2010/3/9
Objective: To compare the opinions of Swedish orthodontists and American orthodontists regarding the association between third molar eruption and dental crowding.
Materials and Methods: A survey was ...
MMP-2, MMP-9,and iNOS Expression in Human Dental Pulp Subjected to Orthodontic Traction
Immunohistochemistry Dental pulp MMP-2 MMP-9 iNOS
2010/3/9
Objective: To test the hypothesis that some metalloproteinases (MMP-2, MMP-9) and inducible nitric oxide synthetase (iNOS) enzymes in dental pulp samples do not vary when subjected to orthodontic trea...
Cutting characteristics of dental diamond burs made with CVD technology
Dental cavity preparation Ultrasonography Diamond Dentistry Operative
2009/10/19
The aim of this study was to determine the cutting ability of chemical vapor deposition (CVD) diamond burs coupled to an ultrasonic dental unit handpiece for minimally invasive cavity preparation. One...
Influence of the power level of an ultra-sonic system on dental cavity preparation
Dental cavity preparation Technology dental Ultrasonography Diamond
2009/10/19
The aim of this study was to evaluate the shape of dental cavities made with the CVDentus?/SUP> system using different ultrasound power levels. One standard cavity was made on the buccal aspect of 15 ...
Effect of thickener agents on dental enamel microhardness submitted to at-home bleaching
Dental enamel Hardness tests Tooth bleaching Thickeners [adverse effects]
2009/10/19
Dental bleaching occurs due to an oxidation reaction between the bleaching agents and the macromolecules of pigments in the teeth. This reaction is unspecific and the peroxides can also affect the den...
Effectiveness of high speed instrument and air abrasion on different dental substrates
Tooth preparation Air abrasion dental Tooth deciduous Microscopy electron scanning In vitro
2009/10/16
The aim of this study was to compare the effectiveness of high speed (HS) and air abrasion (AA) instruments on groups of teeth (deciduous, permanent, bovine), in terms of preparation time, topography ...
Head Posture and Lower Arch Dental Crowding
Occlusal contacts Retention Bonded retainers Hawley
2010/3/5
Objective: To test the hypothesis that there is no difference in the number of occlusal contacts in centric occlusion in patients treated with bonded and removable retention procedures and a control g...
Acceptability of Dental Appearance in a Group of Finnish 16- to 25-Year-Olds
Dental appearance Self-perception Orthodontic treatment need Acceptable occlusion
2010/3/5
Objective: To define a grade in the Aesthetic Component (AC) of the Index of Orthodontic Treatment Need (IOTN) that would differentiate between esthetically acceptable and unacceptable occlusions and ...
Increased Occurrence of Dental Anomalies Associated with Second-Premolar Agenesis
Agenesis Dental anomalies Second premolar
2010/3/5
Objective: To evaluate the prevalence of dental anomalies in patients with agenesis of second premolars and compare the findings with the prevalence of these anomalies in the general population.
Ma...
Paraclinical Effects of Miswak Extract on Dental Plaque
Paraclinical Effects Miswak Extract Dental Plaque
2009/4/2
Introduction: The Persian toothbrush tree or Miswak (Salvadora Persica L.) has been used as a
brushing stick for more than 1,300 years. Pharmacological studies indicated antibacterial and antiinflamm...
Tantalum, Niobium and Titanium Coatings for Biocompa Improvement of Dental Implants
AISI 316L Stainless Biocompatibility Corrosion behavior Dental implant Metallic
2009/4/2
Introduction: Metals have a wide range of applications in implant and prosthetic materials in dentistry.Corrosion resistance and biocompatibility of metals should be improved in order to utilize the...
Stability of Mini-Screws Invading the Dental Roots and Their Impact on the Paradental Tissues in Beagles
Mini-screw Root damage Root healing
2010/3/5
Objective: To examine the stability of mini-screws that invade a dental root by measuring the retention period/failure rate, and to illustrate their effects on paradental tissues.
Materials and Met...
A Consideration of the Principles of Mechanical Arches as Applied to the Dental Arch
Principles Mechanical Arches Dental Arch
2009/3/19
A Consideration of the Principles of Mechanical Arches as Applied to the Dental Arch.
Diet in Relation to Dental Health.