Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Tooth crown"”.
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Influence of Tooth Crown Size on Malocclusion
… most instances, one contributing factor may be tooth size. While several researchers have studied whether tooth size contributes to malocclusion, there still is no consensus. Some have found that the mesiodistal widths of the mandibular incisor teeth are significantly larger in subjects with …
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Dental evidence for the peopling of Guam
… Guam, Micronesia is described based on eighteen tooth crown traits. Chi-square tests for sex dimorphism do not indicate significant differences between males and females. Observer error was found for two traits on the upper first molar and one on the upper canine; The Chamorro dentition exhibits …
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Asymmetry and discordance in Carabelli's trait and the hypocone: do MZ and DZ twins point to common underlying epigenetic factors?
… underlying the development of nonmetric tooth crown traits. If nonmetric dental traits are controlled by genes alone, then it is expected that (1) left and right antimeres should exhibit identical trait expressions, and (2) MZ twins, with identical genotypes, should display identical …
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Volumetric dimensional changes of luting cements
… cast restorations, all-zirconia or all-alumina crowns, and prefabricated metal and cast dowel and cores. The manufacturer claims that the cement has demonstrated favorable biocompatibility properties when tested in vitro and in vivo and has proven to be bioactive. The objective of this study was …
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Effect of low concentrations of antibiotic intracanal medicaments on crown discoloration and push-out bond strength
… the bond strength of root cements and lead to tooth discoloration. Objectives: To evaluate the effects of 1) low concentrations of TAP and DAP (1 mg/mL) on push-out bond strength of various root cements, and 2) low concentrations of TAP and DAP (1 mg/mL and 10 mg/mL) on crown discoloration. …
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Maxillary Incisor Crown Form and Crowding in Adolescent Orthodontic Patients
<p>Dental crowding occurs when the mesiodistal tooth crown widths exceed the space available in the dental arch for proper alignment. Previous research dealing with this common orthodontic problem has measured mesiodistal (MD) tooth widths or <em>clinical</em> tooth height-to-width ratios from …
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Prediction of Root Form Using Crown Data: Mandibular Left First Premolar
… lower left first premolar, consisting of both crown and root data, could adequately describe the root form from a surface scan consisting of only crown data. Secondly, it tested if there were any angles or measurements on the tooth crown that correlate with any aspects of root morphology. The …
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Root Morphology and Sexual Dimorphism : Size Standards for Crown and Root Dimensions in Adolescents
<p>“Early” or two-phase orthodontic treatment of Class II malocclusions is a highly debated topic in the orthodontic literature. We report here on a retrospective cephalometric study of patients with Class II, division 1 malocclusions. One group consisted of 32 consecutively treated patients who …