Dentistry Commons^™

Wearing Complete Dental Prostheses - Effects On Perioral Morphology, Gregor F. Raschke, Philipp Eberl, Geoffrey A. Thompson, Arndt Guentsch, Andre Peisker, Stefan Schultze-Mosgau, Marta Gomez-Dammeier, Gabriel Djedovic, Ulrich M. Rieger, Florian Beuer

School of Dentistry Faculty Research and Publications

Background: To adequately perform rehabilitation of edentulous patients by a complete removable dental prosthesis (CRDP) is from basic interest to dentists to understand the morphologic changes caused by re-establishment of a physiologic jaw relationship. Anthropometric analyses of standardized frontal view and profile photographs may help elucidate such changes. Material and Methods: Photographs of 31 edentulous patients were compared in relaxed lip closure and after insertion of a CRDP in stable occlusion. 2232 anthropometric distances were raised. Eighteen anthropometric indices reflecting the perioral morphology and its integration in the vertical facial harmony were investigated. Results: The intercanthal – mouth width index …

Longterm Quality Of Life After Oncologic Surgery And Microvascular Free Flap Reconstruction In Patients With Oral Squamous Cell Carcinoma, Andre Peisker, Gregor F. Raschke, Arndt Guentsch, Korosh Roshanghias, Francy Eichmann, Stefan Schultze-Mosgau

School of Dentistry Faculty Research and Publications

Background: Quality of life (QoL) has become increasingly important in cancer treatment. It refers to the patient’s perception of the effects of the disease and therapy, and their impact on daily functioning and general feeling of well being. Material and Methods: In this prospective study, a total of 100 patients treated at our institution, completed the European Organization for Research and Treatment of Cancer (EORTC) QLQ-C30 questionnaire and the specific EORTC QLQ-H&N35 module. The questionnaires were distributed to the patients between 12 and 60 months postoperatively. Results: Global QoL score was 58.3 and mean score for functioning scale was 76.7. …

Evaluation Of An Oral Health Education Session For Early Head Start Home Visitors, Kevin Glatt, Christopher Okunseri, Diane Flanagan, Pippa Simpson, Yumei Cao, Earnestine Willis

School of Dentistry Faculty Research and Publications

Objectives

Home visiting programs promote the education and health of Early Head Start (EHS) children and pregnant women. However, EHS's oral health component is unevenly implemented. We conducted an educational intervention to improve oral health knowledge and motivational interviewing techniques among Wisconsin EHS home visitors.

Methods

A questionnaire assessing oral health-related knowledge and confidence was administered to home visitors before and after an educational session. Changes between pre/post-responses were analyzed with McNemar's test and Wilcoxon Signed Rank test.

Results

After the intervention there were increases in both knowledge and confidence related to oral health communication. Knowledge increases were observed in …

Phylotoast: Bioinformatics Tools For Species-Level Analysis And Visualization Of Complex Microbial Datasets, Shareef M. Dabdoub, Megan L. Fellows, Akshay D. Paropkari, Matthew R. Mason, Sarandeep S. Huja, Alexandra A. Tsigarida, Purnima S. Kumar

Oral Health Science Faculty Publications

The 16S rRNA gene is widely used for taxonomic profiling of microbial ecosystems; and recent advances in sequencing chemistry have allowed extremely large numbers of sequences to be generated from minimal amounts of biological samples. Analysis speed and resolution of data to species-level taxa are two important factors in large-scale explorations of complex microbiomes using 16S sequencing. We present here new software, Phylogenetic Tools for Analysis of Species-level Taxa (PhyloToAST), that completely integrates with the QIIME pipeline to improve analysis speed, reduce primer bias (requiring two sequencing primers), enhance species-level analysis, and add new visualization tools. The code …

Ada News - 06/20/2016, American Dental Association, Publishing Division

ADA News

Established in 1970 as the official newspaper of the American Dental Association, the ADA News serves practicing dentists and others allied to the dental profession in the U.S. and internationally. It is the No. 1 source of news and information about the many benefits and services the ADA delivers to members daily as well as timely information on scientific, social, political and economic developments affecting dentistry and health care.

Ozone Treatment Of Recurrent Aphthous Stomatitis: A Double Blinded Study, Mahmoud K. Al-Omiri, Mohannad Alhijawi, Bader K. Alzarea, Raed S. Abul Hassan, Edward Lynch

Dental Medicine Faculty Research

This study aimed to evaluate the use of ozone to treat recurrent aphthous stomatitis (RAS). Consecutive sixty-nine participants with RAS were recruited into this non-randomized double blind, controlled cohort observational study (test group). A control group of 69 RAS patients who matched test group with age and gender was recruited. RAS lesions in test group were exposed to ozone in air for 60 seconds while controls received only air. Ulcer size and pain were recorded for each participant at baseline and daily for 15 days. Ulcer duration was determined by recording the time taken for ulcers to disappear. The main …

Ada News - 06/06/2016, American Dental Association, Publishing Division

ADA News

Established in 1970 as the official newspaper of the American Dental Association, the ADA News serves practicing dentists and others allied to the dental profession in the U.S. and internationally. It is the No. 1 source of news and information about the many benefits and services the ADA delivers to members daily as well as timely information on scientific, social, political and economic developments affecting dentistry and health care.

Chhs June 2016 Icymi, Dr. John Bonaguro, Vashon S. Wells, Editor, Wku College Of Health & Human Services

College of Health & Human Services Publications

No abstract provided.

Alternative Functions For The Multifarious Inflammasome, J. Martel, H. C. Lai, Y. F. Ko, J. D. Young, David M. Ojcius

All Dugoni School of Dentistry Faculty Articles

The inflammasome has been mainly studied in innate immune cells in which it senses microbes and cellular damage, and induces secretion of pro-inflammatory cytokines. This process induces an inflammatory response that is critical for the resolution of infections and repair of tissue damage following injury. Recent studies indicate that inflammasome complex formation also participates in many other cellular and physiological processes beyond modulation of inflammation, such as autophagy, metabolism, eicosanoids production, and phagosome maturation.

Mentors And Role Models: Two Approaches For Inspiration, Gary L. Stafford

School of Dentistry Faculty Research and Publications

No abstract provided.

Microfluidic Manipulation Of Core/Shell Nanoparticles For Oral Delivery Of Chemotherapeutics: A New Treatment Approach For Colorectal Cancer, Mohammad Mahdi Hasani-Sadrabadi, Shahrouz Taranejoo, Erfan Dashtimoghadam, Ghasem Bahlakeh, Fatemeh Sadat Majedi, Jules John Vandesarl, Mohsen Janmaleki, Fatemeh Sharifi, Arnaud Bertsch, Kerry Hourigan, Lobat Tayebi, Phillippe Renaud, Karl I. Jacob

School of Dentistry Faculty Research and Publications

A microfluidics approach to synthesize core–shell nanocarriers with high pH tunability is described. The sacrificial shell protects the core layer with the drugs and prevents their release in the severe pH conditions of the gastrointestinal tract, while allowing for drug release in the proximity of a tumor. The proposed nanoparticulate drug-delivery system is designed for the oral administration of cancer therapeutics.

Influence Of Curing Protocol On Bond Strength Of Self-Etching Adhesives, Sara Adel Botros, Farid Sabry El-Askary, Mohamed Salah Nassef

Dentistry

No abstract provided.

Effect Of Light Distance Specimen Length On Flexural Strength Of Resin-Composite, Sara Adel Botros, Farid Sabry El-Askary, Mohamed Salah Nassef

Dentistry

No abstract provided.

Commencement Program 2016, Loma Linda University

Commencement Programs

CONTENTS

1 | Message from the President

3 | 2016 Events of Commencement

5 | The Academic Procession

7 | Significance of Academic Regalia

9 | The Good Samaritan

10 | University History Highlights

12 | Loma Linda University Song - "Healing Love"

13 | The Speakers

21 | The University Honorees

36 | The School Honorees

56 | The President's Award Recipients

66 | The Program

• School of Medicine, 67
• School of Pharmacy, 90
• School of Dentistry, 98
• School of Allied Health Professions - Allied Health Studies, Cardiopulmonary Sciences, Clinical Laboratory Science, Health Informatics and Information Management, Nutrition and …

Oral Health Education Intervention To Assess Oral Health Knowledge And Behavioral Change, Ryan Bakhshi Baker

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was to evaluate an oral health education intervention on oral health behaviors, oral health knowledge, and diet/amount of sugar consumed by fifth and sixth graders attending charter schools in the city of San Bernardino. Caries status of this particular population was recorded via dmft/DMFT and ICDAS. 143 students (aged 9-13 years) completed a 19 question pre-intervention survey related to oral health behaviors, dental knowledge and diet/amount of sugar consumed. Subjects then participated in an oral health education intervention comprised of an oral health education video and an interactive oral health game. An oral exam recorded …

Influence Of Low Temperature Degradation On Microstructural Integrity Of Zirconia Dental Implants, Mona Monzavi Rahimi

Loma Linda University Electronic Theses, Dissertations & Projects

Zirconia dental implants have become more popular in the field of implant dentistry. However, concerns have been raised regarding low temperature degradation and its influence on phase stability and micro-structural integrity in terms of increased micro-crack formation. In the case of dental implants, this could possibly result in delamination and interference with bone to implant contact and eventually lead to loss of integration and failure. Nevertheless, no study has reported the effects on commercially available Zirconia dental implants. The primary aims of this study was to determine if there is a correlation between ageing duration and 1) depth of tetragonal-monoclinic …

Accuracy Of Volumetric Analysis Software Packages In Assessment Of Tooth Volume Using Cbct, Saylee Nimbalkar

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was to evaluate the accuracy of volumetric analysis software packages in assessment of tooth volume using cone beam computed tomography and compare them to the volume obtained using an optical digital scanner. Twenty-four single rooted teeth indicated for extraction were collected. Cone beam computed tomography scans of these teeth resting in a custom scan jig were taken. Three dimensional digital models were obtained from the DICOM image cone beam computed tomography files using segmentation software packages (Anatomage, Mimics, and Amira) and volumes were calculated for each of the segmented teeth. The teeth were then scanned …

The Expert Advice: Dental Patient Compliance Hinges On Effective Communication Strategies, Diana V. Macri

Publications and Research

Most dental hygienists would agree that motivating patients to adopt good oral health behaviors-often referred to as compliance-is the most challenging aspect of practice. This critical component of patient care is not unique to dentistry and dental hygiene. In 2010, the costs of health care in the United States exceeded $2.7 trillion with "between $100 and $300 billion of avoidable health-care costs [attributable] to nonadherence in the US annually."1 Nonadherence (a term used in the medical literature, which is synonymous with noncompliance) is associated with progression of disease and, subsequently, poor health outcomes resulting in an additional burden of billions …

Removable Partial Dentures Vs Overdentures In Children With Ectodermal Dysplasia: Two Case Reports, Georgios Maroulakos, Ioli I. Artopoulou, Matina V. Angelopoulou, Dimitris Emmanouil

School of Dentistry Faculty Research and Publications

Ectodermal dysplasia (ED) represents a disorder group characterised by abnormal development of the ectodermal derivatives. Removable partial dentures (RPD), complete dentures (CD) or overdentures (OD) are most often the treatment of choice for young affected patients. Prosthetic intervention is of utmost importance in the management of ED patients, as it resolves problems associated with functional, aesthetic, and psychological issues, and improves a patient’s quality of life. However, few studies present the principles and guidelines that can assist in the decision-making process of the most appropriate removable prosthesis. The purpose of this study was to suggest a simple treatment decision-making algorithm …

Histomorphometric Analysis Of Maxillary Sinus Grafts: A Randomized Controlled Study, Mina Nishimoto

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this clinical investigation was to evaluate and compare the degree of new bone formation through histomorphometric analysis following maxillary sinus grafts (MSG) using three different bone graft materials. Thirty-one MSG were performed using a lateral window approach for patients who required implant placement in posterior maxilla. Each sinus was randomly selected to receive one of three bone graft materials; Group A: anorganic bovine bone mineral (ABBM) [Bio-Oss®], Group B: anorganic equine bone mineral (AEBM) [Equimatrix®], or Group C: mineralized cancellous bone allograft (MCBA) [OSSIF-i sem™]. A total of 28 bone cores were obtained at a mean time …

Three-Dimensional Bioprinting Materials With Potential Application In Preprosthetic Surgery, Mina D. Fahmy, Hossein E. Jazayeri, Mehdi Razavi, Radi Masri, Lobat Tayebi

School of Dentistry Faculty Research and Publications

Current methods in handling maxillofacial defects are not robust and are highly dependent on the surgeon’s skills and the inherent potential in the patients’ bodies for regenerating lost tissues. Employing custom-designed 3D printed scaffolds that securely and effectively reconstruct the defects by using tissue engineering and regenerative medicine techniques can revolutionize preprosthetic surgeries. Various polymers, ceramics, natural and synthetic bioplastics, proteins, biomolecules, living cells, and growth factors as well as their hybrid structures can be used in 3D printing of scaffolds, which are still under development by scientists. These scaffolds not only are beneficial due to their patient-specific design, but …

A Simplified Technique For Implant-Abutment Level Impression After Soft Tissue Adaptation Around Provisional Restoration, Ahmad Kutkut, Osama Abu-Hammad, Robert Q. Frazer

Oral Health Practice Faculty Publications

Impression techniques for implant restorations can be implant level or abutment level impressions with open tray or closed tray techniques. Conventional implant-abutment level impression techniques are predictable for maximizing esthetic outcomes. Restoration of the implant traditionally requires the use of the metal or plastic impression copings, analogs, and laboratory components. Simplifying the dental implant restoration by reducing armamentarium through incorporating conventional techniques used daily for crowns and bridges will allow more general dentists to restore implants in their practices. The demonstrated technique is useful when modifications to implant abutments are required to correct the angulation of malpositioned implants. This technique …

Ada News - 05/16/2016, American Dental Association, Publishing Division

ADA News

Established in 1970 as the official newspaper of the American Dental Association, the ADA News serves practicing dentists and others allied to the dental profession in the U.S. and internationally. It is the No. 1 source of news and information about the many benefits and services the ADA delivers to members daily as well as timely information on scientific, social, political and economic developments affecting dentistry and health care.

Color Stability, Physical Properties And Antifungal Effects Of Zro2 And Tio2 Nanoparticle Additions To Pigmented Polydimethylsiloxanes, Mazen Alkahtany

Theses & Dissertations

Introduction: Color changes, physical degradation and fungal infections are potential challenges to the longevity of polydimethylsiloxane (PDMS) elastomers. The purpose of this study was to evaluate potential improvements in color change, physical properties and anti fungal properties of PDMS loaded with TiO2 and ZrO2 nanoparticles.

Methods: 1% weight of 40 nm or 200 nm diameter TiO2 or ZrO2 nanoparticles were mixed into PDMS with 2% functional intrinsic yellow pigment and polymerized. Control materials contained 13% weight 200 nm silica. Samples were exposed to either 3000 hours of UVB radiation (200 μW/cm2) or darkness. Color parameters L*a*b* and ΔE*, ultimate tensile …

Ada News - 05/02/2016, American Dental Association, Publishing Division

ADA News

Established in 1970 as the official newspaper of the American Dental Association, the ADA News serves practicing dentists and others allied to the dental profession in the U.S. and internationally. It is the No. 1 source of news and information about the many benefits and services the ADA delivers to members daily as well as timely information on scientific, social, political and economic developments affecting dentistry and health care.

Chhs May 2016 Icymi, Dr. John Bonaguro, Dean, Vashon S. Wells, Editor, Wku College Of Health & Human Services

College of Health & Human Services Publications

No abstract provided.

The Effect Of Ah Plus And Zinc Oxide Eugenol-Based Root Canal Sealers On Preventing Residual Bacteria In Dentinal Tubules From Accessing The Root Canal, Napapas Nidhidvanich, Panida Thanyasrisung, Pavena Chivatxaranukul

Chulalongkorn University Dental Journal

Background/objectives To investigate the ability of two root canal sealers in preventing residual bacteria in dentinal tubules from accessing the main root canal space. Materials and methods Thirty-five sterilized root samples were randomly assigned to 5 groups: Gutta percha+AH Plus sealer (AH Plus, n=10), Gutta percha+Zinc oxide eugenol sealer (ZOE, n=10), Gutta percha without sealer (GP, n=5), Flowable resin composite coating (composite, n=5), and noninfected samples+GP (aseptic control, n=5). All samples, except the aseptic control, were incubated with Enterococcus faecalis for 4 weeks. All canals were chemo-mechanically prepared and obturated according to the assigned groups. After 1 week, the filling …

Screw Retightening Increases The Implantabutment Connection Screw Loosening Resistance Of Two Implant Systems, Sudarat Nubdee, Ticha Kanchanapoomi, Wacharasak Tumrasvin, Trakol Mekayarajjananonth

Chulalongkorn University Dental Journal

Background/Objective To evaluate the effect of three screw-tightening methods on the screw loosening resistance of two dental implant systems. Materials and methods Fifteen Simple Line II dental implants and 15 CU dental implant abutments were screw tightened to their implant fixtures to the manufacturerûs recommended torque using three tightening methods (method 1: tightening the screw one time, method 2: tightening the screw and retightening the screw after 10 min, method 3: tightening the screw, loosening the screw, retightening the screw, and then retightening the screw after 10 min). After a 106-cycle fatigue test, the reverse torque values were measured. The …

Depth Of Cure, Flexural Strength, Microhardness, And Cytotoxicity Of Light Activated Pit And Fissure Resin-Based Sealant Experimental Prototypes, Pasutha Thunyakitpisal, Sirithan Jiemsirilers, Dujreutai Pongkao Kashima, Onusa Saravari, Nonglax Thunyakitpisal, Thitima Rupunt

Chulalongkorn University Dental Journal

Objective To evaluate the light-activated pit and fissure resin-based sealant prototypes (LAS-clear and LAS-opaque) for depth of cure, flexural strength, microhardness, and cytotoxicity compared with commercial light-activated pit and fissure resin-based sealants. Material and methods LAS-clear, LAS-opaque, Delton-clear (DC), Helioseal clear (HC), Helioseal opaque (HO), and Clinpro (CL) were investigated for depth of cure per ISO 6874:2005. Their flexural strength and microhardness were also evaluated. Cytotoxicity was determined using an MTT based colorimetric assay. Statistical analysis was performed using the SPSS program. Results All materials met ISO 6874:2005 requirements. The mean depth of cure of DC, HC, and LAS-clear were …

Pneumatization Of The Sphenoid Sinus On A Panoramic Radiograph, Pipop Sutthiprapaporn, Pornpop Rattana-Arpha

Chulalongkorn University Dental Journal

The paranasal sinuses are composed of a set of structures of the maxillofacial region and its proximity to the oral cavity. The sphenoid sinus is located within the body of the sphenoid bone. However, an excessive pneumatization of this structure may cause difficulties in radiographic diagnosis, particularly with panoramic radiographs. This article describes a case of pneumatization of the sphenoid sinus in the pterygoid process and greater wing of the sphenoid bone, presented on a panoramic radiograph. Cone beam computed tomography in axial and coronal sections was performed to confirm the pneumatization of these structures.