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Immediate Surgical Repositioning Following Intrusive Luxation: A Case Report And Review Of The Literature, H. Cem Güngör, S. Burcak Cengiz, Nil Altay Dec 2006

Immediate Surgical Repositioning Following Intrusive Luxation: A Case Report And Review Of The Literature, H. Cem Güngör, S. Burcak Cengiz, Nil Altay

School of Dentistry Faculty Research and Publications

This report presents a case of severe intrusive luxation of mature maxillary lateral incisor in a 10-year-old boy. The intruded tooth was immediately repositioned (surgical extrusion) and splinted within 2 h following injury. Tetracycline therapy was initiated at the time of repositioning and maintained for 10 days. Pulp removal and calcium hydroxide treatment of the root canal was carried out after repositioning. Splint was removed 1 month later. Definitive root canal treatment with gutta percha was accomplished at the second month recall. Clinical and radiographic examination 28 months after the surgical extrusion revealed satisfactory apical and periodontal healing.


Buccal And Palatal Talon Cusps With Pulp Extensions On A Supernumerary Primary Tooth, Esin Siraci, H. Cem Güngör, Zafer C. Cehreli, B. Taner Nov 2006

Buccal And Palatal Talon Cusps With Pulp Extensions On A Supernumerary Primary Tooth, Esin Siraci, H. Cem Güngör, Zafer C. Cehreli, B. Taner

School of Dentistry Faculty Research and Publications

This paper reports an unusual occurrence of talon cusp on a supernumerary primary incisor, presenting on both labial and palatal sides. The tooth was scheduled for extraction due to its interference with the occlusion. Morphometric analysis of the taloned cusps was performed on digitized replicas of the tooth crown using open-source image analysis toolkit (ImageJ). Further non-destructive investigation of the taloned crown under cone-beam X-ray computed tomography revealed pulpal extensions in both talon cusps.


A Comparison Of Bond Strength Between Direct- And Indirect-Bonding Methods, Brandon James Linn, David W. Berzins, Virendra B. Dhuru, T. Gerard Bradley Mar 2006

A Comparison Of Bond Strength Between Direct- And Indirect-Bonding Methods, Brandon James Linn, David W. Berzins, Virendra B. Dhuru, T. Gerard Bradley

School of Dentistry Faculty Research and Publications

The purpose of this study was to evaluate and compare the shear bond strength and the sites of bond failure for brackets bonded to teeth, using two indirect-bonding material protocols and a direct-bonding technique. Sixty extracted human premolars were collected and randomly divided into three groups. The direct-bonded group (group 1) used a light-cured adhesive and primer (Transbond XT). One indirect-bonded group (group 2) consisted of a chemical-cured primer (Sondhi Rapid Set) and light-cured adhesive (Transbond XT), whereas the other group (group 3) used a light-cured primer (Orthosolo) and adhesive (Enlight LV). Forty hours after bonding, the samples were debonded. …


Porcelain Surface Roughness, Color And Gloss Changes After Orthodontic Bonding, Jacob Jarvis, Spiros Zinelis, Theodre Eliades, T. Gerard Bradley Mar 2006

Porcelain Surface Roughness, Color And Gloss Changes After Orthodontic Bonding, Jacob Jarvis, Spiros Zinelis, Theodre Eliades, T. Gerard Bradley

School of Dentistry Faculty Research and Publications

The purpose of this study was to evaluate the alteration in surface characteristics after orthodontic debonding of two types of porcelain systems commonly used in prosthetic dentistry. For this purpose, porcelain specimens were fabricated from low-fusing (n = 20) and high-fusing (n = 20) porcelain. The baseline surface roughness, color, and gloss were evaluated using profilometry, color shade index, and gloss study. All specimens were bonded with brackets and debonded using a testing machine at a rate of 0.1 mm/minute crosshead speed. The porcelain surfaces were polished using a 12-fluted carbide composite removal bur (low-fusing, n = 20; high-fusing, n …


Force To Debond Brackets From High-Fusing And Low-Fusing Porcelain Systems, Nicholas P. Ferri, Theodore Eliades, Spiros Zinelis, T. Gerard Bradley Mar 2006

Force To Debond Brackets From High-Fusing And Low-Fusing Porcelain Systems, Nicholas P. Ferri, Theodore Eliades, Spiros Zinelis, T. Gerard Bradley

School of Dentistry Faculty Research and Publications

The purpose of this study was to test the hypothesis that porcelain surface finishing, ie, low- and high-fusing porcelain, has an effect on the amount of force required to debond orthodontic brackets. A total of 20 high-fusing and 20 low-fusing porcelain specimens were prepared, polished, and bonded with standard edgewise brackets using a suggested porcelain bonding protocol. The brackets were debonded with a universal testing machine at shear mode. Resin removal was performed using two methods: a multifluted carbide bur with and without the use of Sof-Lex polishing discs. Representative specimens were studied under a scanning electron microscope before and …


Bond Strength Of Direct And Indirect Bonded Brackets After Thermocycling, Jacob Daub, David W. Berzins, Brandon James Linn, T. Gerard Bradley Mar 2006

Bond Strength Of Direct And Indirect Bonded Brackets After Thermocycling, Jacob Daub, David W. Berzins, Brandon James Linn, T. Gerard Bradley

School of Dentistry Faculty Research and Publications

Thermocycling simulates the temperature dynamics in the oral environment. With direct bonding, thermocycling reduces the bond strength of orthodontic adhesives to tooth structure. The purpose of this study was to evaluate the shear bond strengths (SBS) of one direct and two indirect bonding methods/adhesives after thermocycling. Sixty human premolars were divided into three groups. Teeth in group 1 were bonded directly with Transbond XT. Teeth in group 2 were indirect bonded with Transbond XT/Sondhi Rapid Set, which is chemically cured. Teeth in group 3 were indirect bonded with Enlight LV/Orthosolo and light cured. Each sample was thermocycled between 5°C and …


Gnathic Osteoblastoma: Clinicopathologic Review Of Seven Cases With Long-Term Follow-Up, Yeshwant B. Rawal, Francesca Angiero, Carl M. Allen, John R. Kalmar, Parish P. Sedghizadeh, Andrew M. Steinhilber Feb 2006

Gnathic Osteoblastoma: Clinicopathologic Review Of Seven Cases With Long-Term Follow-Up, Yeshwant B. Rawal, Francesca Angiero, Carl M. Allen, John R. Kalmar, Parish P. Sedghizadeh, Andrew M. Steinhilber

School of Dentistry Faculty Research and Publications

The clinical, radiographic and histopathologic features of seven cases of osteoblastoma of the jaw bones were analyzed. The mandible was involved in six cases and a periosteal presentation of the tumor was noted in three cases. Six tumors were symptomatic with pain being the common presentation. The radiographic appearance of the intraosseous tumors varied from well-defined radiolucencies to poorly-defined mixed lesions. A small periosteal tumor was undetectable radiographically. Histopathologically, the tumors exhibited variation in woven bone formation, osteoblastic rimming, lesional maturation as well as interaction of the tumor with surrounding host tissue. Intraosseous tumors were managed with aggressive surgical curettage …


Suppression Of The Tumorigenic Phenotype In Human Oral Squamous Cell Carcinoma Cells By An Ethanol Extract Derived From Freeze-Dried Black Raspberries, Kapila A. Rodrigo, Yeshwant B. Rawal, Robert J. Renner, Steven J. Schwartz, Qingguo Tian, Peter R. Larsen, Susan R. Mallery Jan 2006

Suppression Of The Tumorigenic Phenotype In Human Oral Squamous Cell Carcinoma Cells By An Ethanol Extract Derived From Freeze-Dried Black Raspberries, Kapila A. Rodrigo, Yeshwant B. Rawal, Robert J. Renner, Steven J. Schwartz, Qingguo Tian, Peter R. Larsen, Susan R. Mallery

School of Dentistry Faculty Research and Publications

Despite focused efforts to improve therapy, 5-yr survival rates for persons with advanced-stage oral squamous cell carcinoma (SCC) remain discouragingly low. Clearly, early detection combined with strategies for local intervention, such as chemoprevention prior to SCC development, could dramatically improve clinical outcomes. Previously conducted oral cavity human chemoprevention trials, however, have provided mixed results. Although some therapies showed efficacy, they were often accompanied by either significant toxicities or circulating antiadenoviral antibodies. It is clearly apparent that identification of nontoxic, effective treatments is essential to prevent malignant transformation of oral epithelial dysplasias. This study employed cell lines isolated from human oral …


Clinical And Experimental Applications Of Nir-Led Photobiomodulation, Kristina D. Desmet, David A. Paz, Jesse J. Corry, Janis T. Eells, Margaret T. T. Wong-Riley, Michele M. Henry, Ellen V. Buchmann, Mary P. Connelly, Julia V. Dovi, Huan Ling Liang, Diane S. Henshel, Ronnie L. Yeager, Deborah S. Millsap, Jinhwan Lim, Lisa J. Gould, Rina Das, Marti Jett, Brian D. Hodgson, David Margolis, Harry T. Whelan Jan 2006

Clinical And Experimental Applications Of Nir-Led Photobiomodulation, Kristina D. Desmet, David A. Paz, Jesse J. Corry, Janis T. Eells, Margaret T. T. Wong-Riley, Michele M. Henry, Ellen V. Buchmann, Mary P. Connelly, Julia V. Dovi, Huan Ling Liang, Diane S. Henshel, Ronnie L. Yeager, Deborah S. Millsap, Jinhwan Lim, Lisa J. Gould, Rina Das, Marti Jett, Brian D. Hodgson, David Margolis, Harry T. Whelan

School of Dentistry Faculty Research and Publications

This review presents current research on the use of far-red to near-infrared (NIR) light treatment in various in vitro and in vivo models. Low-intensity light therapy, commonly referred to as “photobiomodulation,” uses light in the far-red to near-infrared region of the spectrum (630–1000 nm) and modulates numerous cellular functions. Positive effects of NIR–light-emitting diode (LED) light treatment include acceleration of wound healing, improved recovery from ischemic injury of the heart, and attenuated degeneration of injured optic nerves by improving mitochondrial energy metabolism and production. Various in vitro and in vivo models of mitochondrial dysfunction were treated with a variety of …


Spatially-Oriented Emr For Dental Surgery, Min Wu, Lisa J. Koenig, John Lynch, Thomas S. Wirtz Jan 2006

Spatially-Oriented Emr For Dental Surgery, Min Wu, Lisa J. Koenig, John Lynch, Thomas S. Wirtz

School of Dentistry Faculty Research and Publications

As digital dental images become widely available, a new Electronic MR system (EMR) will be critical for the success of applying new technology to dental care. This project is designed an image-based and spatially-oriented EMR for dental surgery. A new panoramic image-based annotation model will be developed, which will complement dental charting precisely locating specific spatial findings for each patient. A spatially-oriented, multilayered data model for dental EMR will be developed using Geographic Information System (GIS) methods. This project will explore the possibility of applying head and neck images from VHP into a spatially-oriented EMR system.


Soft Tissue To Hard Tissue Advancement Ratios For Mandibular Elongation Using Distraction Osteogenesis In Children, Michael B. Melugin, Pamela R. Hanson, Christopher A. Bergstrom, William I. Schuckit, T. Gerard Bradley Jan 2006

Soft Tissue To Hard Tissue Advancement Ratios For Mandibular Elongation Using Distraction Osteogenesis In Children, Michael B. Melugin, Pamela R. Hanson, Christopher A. Bergstrom, William I. Schuckit, T. Gerard Bradley

School of Dentistry Faculty Research and Publications

Distraction osteogenesis is extensively used for the elongation of hypoplastic mandibles in children, yet the soft tissue profile response to this is not well understood. The pre- and posttreatment lateral cephalometric radiographs of 27 pediatric patients who underwent bilateral mandibular elongation using distraction osteogenesis were analyzed retrospectively to correlate horizontal soft tissue advancement with horizontal underlying bone advancement at B point and pogonion. Horizontal advancement (in millimeters) of bone and overlying soft tissue at these points was collected from the radiographs of each patient, and linear regression analysis was performed to determine the relationship of hard to soft tissue horizontal …