A Justification For The Trend Towards Indirect Pulp Therapy,
2015
Virginia Commonwealth University
A Justification For The Trend Towards Indirect Pulp Therapy, Marissa Kuhnen
Theses and Dissertations
Purpose: The purpose of this retrospective chart review was to determine how primary molars needing vital pulp therapy have been treated in the past four years at Virginia Commonwealth University (VCU) and to determine which treatments: indirect pulp therapy (IPT), formocresol pulpotomy, and ferric sulfate pulpotomy have been successful. Methods: AxiUm records that contained the procedure codes D3120 (Pulp Cap – Indirect) or D3220 (Therapeutic Pulpotomy) were totaled by year. Visit records were queried again to identify treatment failures i.e. extractions or pulpectomy. Results: In 2010, 52% of vital pulp therapies were ferric sulfate pulpotomies and in …
The Prevalence, Predictive Factors, And Classification Of Intrapulpal Cracks In Maxillary Premolars Requiring Endodontic Treatment,
2015
Virginia Commonwealth University
The Prevalence, Predictive Factors, And Classification Of Intrapulpal Cracks In Maxillary Premolars Requiring Endodontic Treatment, Sarah Krygowski
Theses and Dissertations
Cracked teeth may be difficult to diagnose. Craze lines rarely become symptomatic or require treatment. Cracks in the enamel and dentin alone may or may not become symptomatic and require restorative treatment. However, cracks extending into the enamel, dentin, and pulp chamber provide an avenue for bacteria to establish infection and this commonly results in symptoms and the need for endodontic and restorative treatment. The published endodontic literature has limited information regarding the prevalence or predictive factors for cracks extending into the pulp chamber of teeth. The purpose of this study was to determine the prevalence and classification of intrapulpal …
Lowering The Number Of False Positive Responses To Electric Pulp Tests By Qualifying Patient Response,
2015
Virginia Commonwealth University
Lowering The Number Of False Positive Responses To Electric Pulp Tests By Qualifying Patient Response, Katherine Js Lee
Theses and Dissertations
The electric pulp test (EPT) has been shown to be a valuable tool in assessing pulp vitality. One of its drawbacks, however, is its high number of false positives. The purpose of this study was to determine if qualifying the type of sensation elicited by the test could lower the percentage of false positive responses. A retrospective chart review of an eleven-month period was conducted, examining all patients with necrotic teeth tested with the EPT. Of 189 teeth, when the patient responded to EPT at first sensation 23.3% of teeth were incorrectly identified as vital. When the patient was asked …
Treatment Decisions Involving Teeth With Intrapulpal Cracks: A Survey Of Endodontists,
2015
Virginia Commonwealth University
Treatment Decisions Involving Teeth With Intrapulpal Cracks: A Survey Of Endodontists, Sheldon M. Sealey
Theses and Dissertations
There is no universal protocol for diagnosing, treating and managing cracked teeth. The purpose of this survey was to investigate the use of traditional methods of crack detection and to explore how treatment decisions were made using an intrapulpal crack classification. The electronic survey was sent to 1115 active members of the American Association of Endodontists (AAE) and The Digital Office (TDO™) community. Comparisons were assessed using logistic or repeated-measures regression. The most often used diagnostic method was probing. When the crack involved one wall, 85% of respondents would complete root canal therapy > 50% of the time or …
Adamts-4 And Adamts-5 Expression In Human Temporomandibular Joint Discs With Internal Derangement, Correlates With Degeneration,
2015
University of Catania
Adamts-4 And Adamts-5 Expression In Human Temporomandibular Joint Discs With Internal Derangement, Correlates With Degeneration, Rosalia Leonardi, Salvatore Crimi, Luis Eduardo Almeida, Giuseppe Pannone, Giuseppe Musumeci, Sergio Castorina, Mugurel Constantin Rusu, Carla Loreto
School of Dentistry Faculty Research and Publications
Temporomandibular joint (TMJ) internal derangement (ID) is one of the most common form of temporomandibular disorders. There is evidence showing the increased expression of matrix metalloproteinases (MMPs) in the cells from degenerated TMJ disc. ADAMTS are a large family of metalloproteases which are responsible for proteoglycans degradation. The present study aimed to evaluate ADAMTS-4 and ADAMTS-5 immunohistochemical expression in human TMJ discs from patients affected by ID, and to find out if there is any correlation with the degree of histopathological changes. Eighteen temporomandibular displaced disc specimens and sixteen TMJ disc control were used for the present study. Specimens were …
Developing Student, Family, And School Constructs From Nlts2 Data,
2015
University of Kansas
Developing Student, Family, And School Constructs From Nlts2 Data, Karrie A. Shogren, Mauricio Garnier-Villarreal
School of Dentistry Faculty Research and Publications
The purpose of this study was to use data from the National Longitudinal Transition Study–2 (NLTS2) to (a) conceptually identify and empirically establish student, family, and school constructs; (b) explore the degree to which the constructs can be measured equivalently across disability groups; and (c) examine latent differences (means, variances, and correlations) in the constructs across disability groups. Conceptual analysis of NLTS2 individual survey items yielded 21 student, family, and school constructs, and 16 were empirically supported. Partial strong metric invariance was established across disability groups, and in the latent space, a complex pattern of mean and variance differences across …
Aadej Comm 46 3 2015,
2015
American Dental Association
Aadej Comm 46 3 2015
AADEJ - The Communicator
The Communicator is the official journal of the American Association of Dental Editors and Journalists (AADEJ). It is published quarterly, distributed digitally via email to members, and posted on the Association's website, AADEJ.org. Each issue includes regular updates from the editorial team and AADEJ board, as well as feature articles on current issues in the field.
The Comparison Of 3-Dimensional Soft-Tissue Of Adult Korean, Chinese, And Houstonian Caucasian Patients With Class I Malocclusion,
2015
University of Alabama at Birmingham
The Comparison Of 3-Dimensional Soft-Tissue Of Adult Korean, Chinese, And Houstonian Caucasian Patients With Class I Malocclusion, Jamie Youngshin Kim
All ETDs from UAB
The purpose of this study is to compare the computer generated facial averages of Korean adults with Chinese and Houstonian Caucasian faces using a three-dimensional surface imaging system. Materials and Methods: Three-dimensional images of Korean adults (Seoul, Korea) with Class I malocclusion were captured using the 3dMDTMface, which combines structured light and stereo-photogrammetry techniques. The images of 138 Koreans were processed to generate average male and female facial shells using Rapidform 2006 Plus Pack 2 software. The average Korean facial shells were superimposed and compared to the average shells of Chinese adults (Xi’an, China) and Caucasian adults (Houston, Texas) from …
Comparison Of Three Fluoride Dentifrice Products In The Prevention Of White Spot Lesions In Orthodontic Treatment,
2015
University of Alabama at Birmingham
Comparison Of Three Fluoride Dentifrice Products In The Prevention Of White Spot Lesions In Orthodontic Treatment, Anna B. Palombini
All ETDs from UAB
Introduction:. During the course of orthodontic treatment, enamel decalcification is a common problem. Demineralized enamel, the precursor to caries formation, can be attributed to fixed orthodontic appliances and prolonged exposure to bacterial plaque. Progression to clinically detectable white spot lesions may occur as early as one month following the placement of orthodontic appliances. Such problems have influenced clinicians to search for a solution. Because fluoride treatment immediately upon debonding is not advocated, clinicians have proposed fluoride treatment and fluoride-releasing materials at the commencement of the therapy. The two new anti-cavity toothpastes, ClinproTM 5000 with 1.1% Sodium Fluoride and ClinproTM Tooth …
Bond Of Dual Cure Resin Cements To Enamel And Dentin In Self Cure Mode,
2015
University of Alabama at Birmingham
Bond Of Dual Cure Resin Cements To Enamel And Dentin In Self Cure Mode, Rashmi Radhakrishnan
All ETDs from UAB
Dual cured resin cements are frequently used to cement all ceramic restorations. The increased thickness and /or opacity of restorations block light transmission. In these situations, where little or no light can be transmitted through the restorations, the polymerization of the cement is in the self-cure mode. Purpose: This study measures the bond strength and mode of failure of dual cure resin cements to enamel and dentin in a self-cure mode using e.max rods. Methods: 160 extracted human molars were ground to mid-coronal dentin (N=80) or superficial enamel (N=80) and finished to 320 grit disks. Four adhesive/cement combinations - Multilink …
A Prospective Randomized Clinical Trial To Assess The Performance Of Microtextured Dental Implants With Or Without A Machined Collar- 1 Year Results,
2015
University of Alabama at Birmingham
A Prospective Randomized Clinical Trial To Assess The Performance Of Microtextured Dental Implants With Or Without A Machined Collar- 1 Year Results, Elizabeth Felts Randall
All ETDs from UAB
Aim: To assess the performance of microtextured dental implants with or without a machined collar at one year after placement. Material and Methods: Fifty-eight patients received dental implant therapy to restore missing teeth in one area of the maxilla or man-dible at the UAB Department of Graduate Periodontology. Residents in the program placed microtextured implants with a microtextured collar with microgrooves (test group) and microtextured implants with a machined collar (control group). Sites were randomized to the test group or control group. Study visit protocol was followed and implants were restored by off-site dentists. Sixty-nine (69) implants were assessed at …
Perceptions Of Facial Attractiveness: Outcomes Of Orthognathic Surgery,
2015
University of Alabama at Birmingham
Perceptions Of Facial Attractiveness: Outcomes Of Orthognathic Surgery, Brittany Bross Reid
All ETDs from UAB
PERCEPTIONS OF FACIAL ATTRACTIVENESS: OUTCOMES OF ORTHOGNATHIC SURGERY BRITTANY REID DEPARTMENT OF ORTHODONTICS ABSTRACT Perceptions of physical attractiveness contribute to generalized assumptions that can create significant bias in social decision-making. Because these biases exist, patients often seek ways to improve facial harmony and overall appearance. Orthodontics and orthognathic surgery are treatment modalities that may be considered as a means to achieve facial balance. Orthodontists and oral surgeons must have an understanding of facial beauty and how to properly carry out techniques in order to preserve or improve facial balance. More importantly, the treatment goals of the patient and clinician(s) must …
The Effect Of Bone-Implant Contact And Elastic Modulus In The Biomechanical Stability Of Temporary Anchorage Devices,
2015
University of Alabama at Birmingham
The Effect Of Bone-Implant Contact And Elastic Modulus In The Biomechanical Stability Of Temporary Anchorage Devices, Ghada Nimeri
All ETDs from UAB
ABSTRACT The purpose of this study was to analyze the microstrains of compact and trabecular bone caused by loading of different miniscrews at different healing times, and to compare these results to the limits of bone stability maintenance based on the Frost Mechanostat Theory. Materials and Methods: Theoretical calculations of microstrains of bone surrounding 10 different miniscrews were done. These miniscrews were considered under loading forces of 500 gm., and the microstains of both trabecular and compact bone were calculated separately when the thickness of the compact bone was at 1mm or 2mm. The microstrains were calculated at 4 different …
In- Vitro Wear Of Four Cad-Cam Materials In The Uab Wear Simulating Device,
2015
University of Alabama at Birmingham
In- Vitro Wear Of Four Cad-Cam Materials In The Uab Wear Simulating Device, Ritika Bansal
All ETDs from UAB
In- vitro Wear of Four CAD- CAM Materials in the UAB Wear Simulating Device RITIKA BANSAL MS IN CLINICAL DENTISTRY ABSTRACT Hybrid ceramic/polymer blocks represent a new category of CAD/CAM materials that do not require heat treatment following milled fabrication and limited clinically relevant mechanical properties of these materials are available. Purpose: This study measures the hardness, flexural strength, modulus, and wear of 3 ceramic/polymer hybrid materials (LAVA Ultimate, Enamic, and Cerasmart), 2 reference glass ceramics (IPS e.max and Celtra Duo), and 1 reference composite material (Paradigm MZ100). Methods: Flexural strength specimens (n=10) (2.5 Ã 2.5 Ã 16 mm) were …
Three-Dimensional Soft Tissue Analysis Of Facial Morphology Of A Colombian Population Compared To Adult Caucasians,
2015
University of Alabama at Birmingham
Three-Dimensional Soft Tissue Analysis Of Facial Morphology Of A Colombian Population Compared To Adult Caucasians, Sonia Bravo-Hammett
All ETDs from UAB
Aim: The purpose of this study is to describe the facial morphology of a Colombian population with three-dimensional imaging; and comparing their facial morphology with the Caucasian to create a database for this ethnicity. Materials and Methods: The study included 170 subjects selected from the Valle University in Cali-Colombia; and 1346 Caucasian subjects selected from the Face-Base Data funded by the National Institute of Dental and Craniofacial Research. All images were taken on Natural Head Position and captured using a stereo-photogrammetric camera system (3dMDfaceTM); to obtain a three dimensional image of each patient. The subjects were between 19 to 31 …
Intra-Oral Scanning Devices Compared To Traditional Digital Impressions,
2015
University of Alabama at Birmingham
Intra-Oral Scanning Devices Compared To Traditional Digital Impressions, Terpsithea Christou
All ETDs from UAB
The aim of this study is to review the state of art concerning 3D optical acquisition techniques and devices currently used in Orthodontics, and determine whether a commercial intra-oral scanner is as accurate as traditional impressions for orthodontic purposes. Materials and Methods: Records of 30 subjects were prospectively acquired and digital models were obtained using an intra-oral scanner, LythosTM by Ormco, and an extra-oral scanner, GOM ATOS Triple Scan II by GOM. Seven parameters indicating linear measurements from predetermined landmarks were measured and analyzed. Paired t tests, plots and bars and Bland and Altman Analysis were used to compare and …
Translucency, Stain Resistance And Hardness Of Composites Used For Invisalign Attachments,
2015
University of Alabama at Birmingham
Translucency, Stain Resistance And Hardness Of Composites Used For Invisalign Attachments, Katelyn Bowman Feinberg
All ETDs from UAB
The purpose of this study is to compare the translucency parameter, stain resistance and hardness of dental restorative composites and orthodontic adhesives in order to determine an ideal esthetic attachment material for Invisalign® treatment. Materials and Methods: Two dental restorative composites (Filtek™ Supreme Ultra, Tetric EvoCeram®) and three orthodontic adhesives (L.C.R.™, Transbond™ XT, Phase II® Dual Cure) were used in this in-vitro study. 2.0 mm thick samples of each material were fabricated in silicone molds covered with a flat sheet of Invisalign attachment template material. To evaluate the translucency parameter and stain resistance, initial L*a*b* values of each material were …
Retention Of Cad/Cam Crowns Luted With Resin Cements And Rmgi,
2015
University of Alabama at Birmingham
Retention Of Cad/Cam Crowns Luted With Resin Cements And Rmgi, Shruti Sushilkumar Sonavane
All ETDs from UAB
Objectives: To measure retention of lithium disilicate (IPS e.max CAD, Ivoclar Viva-dent) and zirconia reinforced lithium disilicate (CELTRATM DUO, Dentsply) copings luted using resin cements and resin-modified glass ionomer cement. Methods: 110 Extracted human, non-carious mandibular 2nd premolars (n=10) were embedded in PVC cylinders with acrylic resin and placed into a lathe to produce a uni-form crown preparation (22°-convergence & 3mm-height). Following the orientation groove placement (69L bur), preparations were scanned and milled using a CEREC 3D/Sirona machine to produce e.max and CELTRATM DUO crowns. Preparations were imaged with a digital microscope (Keyence/VHX-600-20X) and the surface area of each crown …
Long-Term Stability Of Lefort I Maxillary Downdraft With Rigid Internal Fixation,
2015
University of Alabama at Birmingham
Long-Term Stability Of Lefort I Maxillary Downdraft With Rigid Internal Fixation, Stephen Leonard Strickland
All ETDs from UAB
ABSTRACT Objective: The objective of this study is to evaluate the skeletal and dental stability of a Le Fort I maxillary downgraft after a minimum 4year follow up period. Methods: This retrospective cohort study evaluated 18 patients' post-surgical stability after Le Fort I maxillary downgraft performed by a Z-osteotomy. Pre-surgical (T1), post-surgical (T2), post-orthodontic (T3), and long-term follow-up (T4) cephalometric radiographs were digitized and analyzed with Dolphin Imagining via a custom analysis to evaluate linear and angular skeletal and dental relapse. Results - The average Le Fort I maxillary down graft was 3.6mm. The average post-surgical orthodontic phase was 7.4 …
Light Transmitting Fiber Posts - An In Vitro Evaluation.,
2015
University of Alabama at Birmingham
Light Transmitting Fiber Posts - An In Vitro Evaluation., Antigoni Stylianou
All ETDs from UAB
Objectives: The primary purpose of this study is to measure and compare the light transmission, radiopacity and microscopic structure of a new fiber optic post compared to a clinically successful fiber post. Materials and Methods: A. The radiopacity of seven posts was evaluated in terms of average intensity values calculated in histograms produced by computer-based software. B. The two types of fiber posts were examined by scanning electron microscopy (SEM) and evaluated by computer-assisted image analysis. C. Two experimental groups with sample size n=12 included the D.T. Light posts and iLumi Fiber Optic posts. Two aluminum assemblies forming two cylindrical …
