Medicine and Health Sciences Commons^™

ประสิทธิภาพของแอลกอฮอล์ในการกําจัดเชื้อแบคทีเรียบนหลอดยาชาทางทันตกรรม, รัชนี ปานจินดา, อรนาฏ มาตังคสมบัติ, รัชนี อัมพรอร่ามเวทย์, เกศกัญญา สัพพะเลข

Chulalongkorn University Dental Journal

วัตถุประสงค์ เพื่อทําการสํารวจเบื้องต้นถึงความชุกของการปนเปื้อนเชื้อแบคทีเรียบนหลอดยาชา และทดสอบประสิทธิภาพของแอลกอฮอล์ในการกําจัดเชื้อแบคทีเรียที่ปนเปื้อนบนหลอดยาชา วัสดุและวิธีการ เพาะเชื้อแบคทีเรียจากตัวอย่างหลอดยาชาที่เก็บจากคลินิกทันตกรรมในกรุงเทพมหานคร 25 แห่ง ตรวจสอบเชื้อที่พบด้วยการย้อมสีแกรม และทดสอบการกําจัดเชื้อแบคทีเรีย 3 ชนิด คือ สแตฟฟีโลค็อกคัส ออเรียส ซูโดโมแนส แอรูจิโนซา และบาซิลลัส ซับทิลิส ด้วยการแช่หลอดยาชาที่ปนเปื้อนเชื้อในแอลกอฮอล์ ร้อยละ 70 นาน 15 และ 10 นาที แล้วนําไปเพาะเชื้อ และทําการตรวจสอบการรั่วซึมของแอลกอฮอล์เข้าไปใน หลอดยาชาหลังจากแช่ในแอลกอฮอล์ร้อยละ 70 ผสมสีคริสตัลไวโอเลตร้อยละ 5 เป็นเวลา 10 นาที ผลการศึกษา พบเชื้อแบคทีเรียจากตัวอย่างหลอดยาชาร้อยละ 32 ของคลินิกที่ศึกษา เป็นเชื้อแกรมบวกทรงแท่ง แกรมบวกทรงกลม ทั้งแกรมบวกทรงกลมและแกรมลบทรงแท่ง ร้อยละ 50 41.7 และ 8.3 ตามลําดับ การแช่ แอลกอฮอล์ร้อยละ 70 นาน 10 นาที สามารถกําจัดเชื้อสแตฟฟีโลค็อกคัส ออเรียส และซูโดโมแนส แอรูจิโนซาได้ แต่ไม่สามารถกําจัดเชื้อบาซิลลัส ซับทิลิสได้ และไม่พบว่ามีการรั่วซึมของแอลกอฮอล์เข้าไปในหลอดยาชาอย่างมีนัยสําคัญ สรุป พบการปนเปื้อนเชื้อแบคทีเรียบนผิวหลอดยาชาได้ทั่วไปในคลินิกทันตกรรม การแช่หลอดยาชาใน แอลกอฮอล์ร้อยละ 70 เป็นเวลา 10 นาที สามารถกําจัดเชื้อสแตฟฟีโลค็อกคัส ออเรียส และซูโดโมแนส แอรูจิโนซา บนหลอดยาชาได้ โดยไม่พบแอลกอฮอล์รั่วซึมเข้าไปในหลอดยาชา (ว ทันต จุฬาฯ 2557;37:59-68)

Cutting Effectiveness Of Diamond Burs On Dental Zirconia., Ching-Kai Lin

All ETDs from UAB

Monolithic zirconia restorations are popular but removing these crowns is difficult. The purpose of the study is to measure and compare the cutting effectiveness of 10 types of diamond burs through monolithic sintered zirconia. Ten types of diamond burs (n=8) were compared for the cutting effectiveness in Zirconia (CERCON; DeguDent) using a high speed computer controlled cutting device with water spray (5.45L/min). The turbine used to cut the blocks rotated at 150,000 rpm and with the burs at a depth of 2mm into the zirconia during cutting. A 100 gm load was applied during cutting for each bur which made …

Detection Of Scardovia Genus From Oral Samples In Children Using Real-Time Quantitative Polymerase Chain Reaction, Jungyi Alexis Liu

All ETDs from UAB

Streptococcus mutans (Sm) and Streptococcus sobrinus (Ss) , are considered the major bacterium associated with dental caries. However, recent findings identify Scardovia species (Sc) is associated with early childhood caries, with or without the presence of Sm or Ss. This IRB approved study quantified the presence of Sm and Sc in saliva by real-time quantitative PCR (qPCR) in relation to caries. Saliva samples were collected from 72 preschool children in a high-caries risk community in rural Alabama. SYBR Green-based qPCR using extracted DNA and primers specific for Sm, Ss, Sc and total bacteria determined the copy number (CN/ml). Twenty two …

3-Dimensional Comparison Of Hard And Soft Tissue Asymmetry In, Philip H. Pan

All ETDs from UAB

Class III malocclusions are particularly prevalent in the Asian population. Threedimensional imaging has improved the ability to portray the three-dimensional characteristics of soft tissue face and underlying skeletal hard tissue. While soft tissue reflects the underlying hard tissue structures, soft tissue may either provide a compensation for hard tissue asymmetry or potentially exacerbate the asymmetry. The current study is novel in that the hard tissue and soft tissue asymmetries are both analyzed relative to the same reference point, and using 3D imaging, we have attempted to elucidate a compensation tendency between the hard and soft tissues. The sample was comprised …

Long-Term Stability Of Maxillary Advancement In Non-Syndromic Cleft Lip And Palate Patients Using The Red Ii System, Jared Adrian Carter

All ETDs from UAB

Objective: The purpose of this study is to evaluate skeletal stability at a minimum of one year following maxillary advancement distraction osteogenesis with the KLS Martin RED II System in non-syndromic CLP patients treated at UAB SOD. Methods: This retrospective cohort study evaluated 20 non-syndromic CLP patients (12 males, 8 females, average age 10.97) treated at the UAB SOD by the same surgeon for maxillary hypoplasia with rigid external distraction using the RED II System (KLS Mar-tin Group, Tuttlingen, Germany). Pre-surgical (T1), post-consolidation (T2), and LTFU (T3) radiographs were digitized and analyzed with via a custom analysis to evaluate treatment …

Effect Of Abutment Position On Retention After Cyclic Loading Of Cantilevered Y-Tzp Fpds, Aikaterini Kostagianni

All ETDs from UAB

Purpose: The influence of the vertical abutment positions on the retention of a three-unit implant supported cantilevered FPD restoration was measured and compared. Methods: The study included four groups (n=10) of cantilevered FPDs restorations, fabricated of monolithic zirconia. Prefabricated titanium implant abutments were used and connected to their analogs. The analogs were fixated on a split mold and their vertical position was adjusted on a 2 mm bases depending on the group, resulting also to an alteration of the occlusal thickness of the restorative material. The prosthesis were cemented to the abutments with Rely X Luting Plus resin modified glass …

Investigation Of Lateral Incisor Crown Root Angulation And Impacted Maxillary Canines, Samuel Philip Purnell

All ETDs from UAB

Objective: The primary aim of this study was to determine if there is a difference in the mesiodistal crown-root angulation of maxillary lateral incisors between patients with impacted maxillary canines and a control population. Secondary aim 1 compared the same angle measured on panoramic radiographs to determine if a difference existed between the CBCT measurement and the panoramic radiograph measurement. Secondary aim 2 looked to determine if there was a correlation between maxillary lateral incisor tooth width and the mesiodistal crown-root angulation. Materials and Methods: CBCT's were reformatted so that the mesiodistal crown-root angulation of maxillary lateral incisors could be …

Regulatory Control Of Palatogenesis And Odontogenesis By Specificity Protein 7, John Christopher Clarke

All ETDs from UAB

Runx2 and its downstream target Specificity Protein 7 (Sp7) are essential for skeletogenesis. In humans, mutations in Sp7 gene are associated with osteogenesis imperfecta. Unlike Runx2, the role of Sp7 in palatogenesis, tooth development or differentiation of ameloblasts and odontoblasts remains unknown. The main goal of this research was to identify the functional requirement of Sp7 transcription factor during tooth development and palatogenesis. Molecular, biochemical, and histological approaches were employed to answer this question. We established Sp7-null mice that are completely void of mineralized tissue, exhibit craniofacial dysmorphogenesis and die shortly after birth. Surprisingly, Sp7 homozygous mutants exhibited normal tooth …

Analysis Of Debris From Implant Prostheses, Mehran Varedi

All ETDs from UAB

Objectives: The specific aim of this study was to analyze any entrapped debris in implant abutment screw threads from post processed constructs from dental laboratories. Materials and Methods: Forty implant screws were used to collect debris where screws were removed from the implant prosthesis as received from dental laboratories. In all samples, laboratory procedures including fabrication of the custom abutment, definitive prosthesis and finishing/polishing were completed prior to sampling. Twenty-nine screws were from titanium and eleven screws were from zirconia abutments. Scanning Electron Microscope (SEM) analyses of collected particulate products from abutment screws were done for all specimens. Results: The …

Ada Council On Scientific Affairs Extends Application Period For John W. Stanford New Investigator Award, American Dental Association

News Releases

This collection includes standard news releases, information kits and other documents distributed for publicity, information, announcements of events, etc. as issued from the ADA. Items included in this collection are archival and any costs, links, contact information, or other figures may be out of date. Please contact the ADA to verify information.

Dr. Reneida Reyes Elected President Of The Ada Foundation Board Of Directors, American Dental Association

News Releases

This collection includes standard news releases, information kits and other documents distributed for publicity, information, announcements of events, etc. as issued from the ADA. Items included in this collection are archival and any costs, links, contact information, or other figures may be out of date. Please contact the ADA to verify information.

American Dental Association Offers Online Education For Dentists In Long-Term Care, American Dental Association

News Releases

This collection includes standard news releases, information kits and other documents distributed for publicity, information, announcements of events, etc. as issued from the ADA. Items included in this collection are archival and any costs, links, contact information, or other figures may be out of date. Please contact the ADA to verify information.

American Dental Association Encouraged By Soda Makers’ Pledge To Pledge To Promote Smaller Sizes, Less Sugar, American Dental Association

News Releases

This collection includes standard news releases, information kits and other documents distributed for publicity, information, announcements of events, etc. as issued from the ADA. Items included in this collection are archival and any costs, links, contact information, or other figures may be out of date. Please contact the ADA to verify information.

Ada Honors State And Local Dental Societies For Outstanding Programs, American Dental Association

News Releases

This collection includes standard news releases, information kits and other documents distributed for publicity, information, announcements of events, etc. as issued from the ADA. Items included in this collection are archival and any costs, links, contact information, or other figures may be out of date. Please contact the ADA to verify information.

Replication Of Known Dental Characteristics In Porcine Skin: Emerging Technologies For The Imaging Specialist, L. Thomas Johnson, Thomas W. Radmer, Dean C. Jeutter, Gary L. Stafford, Joseph Thulin, Thomas Wirtz, George Corliss, Kwang Woo Ahn, Alexis Visotky, Ronald L. Groffy

School of Dentistry Faculty Research and Publications

This study demonstrates that it is sometimes possible to replicate patterns of human teeth in pig skin and determine scientifically that a given injury pattern (bite mark) correlates with the dentitions of a very small proportion of a population dataset, e.g., 5 percent or even 1 percent. The authors recommend building on the template of this research with a sufficiently large database of samples that reflects the diverse world population. They also envision the development of a sophisticated imaging software application that enables forensic examiners to insert parameters for measurement, as well as additional methods of applying force to produce …

Operative Management Of Idiophatic Myositis Ossificans Of Lateral Pterygoid Muscle, Luis Eduardo Almeida, Andrea Doetzer, Flavio Camejo, Jose A. Bosio

School of Dentistry Faculty Research and Publications

INTRODUCTION

Myositis ossificans (MO) is characterized as heterotopic bone formation within muscle. MO rarely occurs in the head and neck region. Excision of the heterotopic bone is the standard treatment. This report summarizes a case of a 12-year old female with MO involving the lateral pterygoid muscle. The heterotopic bone was excised using an intraoral incision. Despite intensive physical therapy, the operation failed as evidenced by new bone formation in the area within three weeks of the operation.

PRESENTATION OF CASE

A twelve years old female patient presenting with mouth opening of 10 mm, no facial asymmetry, and no jaw …

Review Found Little Difference Between Sandblasted And Acid-Etched (Sla) Dental Implants And Modified Surface (Slactive) Implants, Gary L. Stafford

School of Dentistry Faculty Research and Publications

Data sources

Medline, Embase, the Cochrane Oral Health Group's Trials Register and OpenGREY databases were searched together with the reference lists of identified articles.

Study selection

Randomised controlled trials (RCTs) and prospective cohort studies of at least six month duration were included. Studies/case series in which there was only one implant surface (SLA or SLActive) and one loading protocol (immediate or early) were also considered.

Data extraction and synthesis

Two reviewers screened, selected and abstracted data, independently. RCTs were assessed for quality using the Cochrane risk of bias approach and observational studies using the Newcastle-Ottawa scale (NOS). The primary outcomes …

Patterns Of Dental Service Utilization Following Nontraumatic Dental Condition Visits To The Emergency Department In Wisconsin Medicaid, Nicholas M. Pajewski, Christopher Okunseri

School of Dentistry Faculty Research and Publications

Objectives: To examine patterns of dental service utilization for adult Medicaid enrollees in Wisconsin following nontraumatic dental condition (NTDC) visits to the emergency department (ED).

Methods: This is a retrospective, observational study of claims for NTDC visits to the ED and dental service encounters from the Wisconsin Medicaid Evaluation and Decision Support database (2001-2009). We used competing risk models to predict probabilities of returning to the ED versus obtaining follow-up care from a dentist.

Results: We observed a 43 percent increase in the rate of NTDC visits to the ED, with most of this increase occurring from 2001 to 2005. …

Racial/Ethnic Disparities In Provision Of Dental Procedures To Children Enrolled In Delta Dental Insurance In Milwaukee, Wisconsin, Pradeep Bhagavatula, Qun Xiang, Fredrick Eichmiller, Aniko Szabo, Christopher Okunseri

School of Dentistry Faculty Research and Publications

Objectives: Most studies on the provision of dental procedures have focused on Medicaid enrollees known to have inadequate access to dental care. Little information on private insurance enrollees exists. This study documents the rates of preventive, restorative, endodontic, and surgical dental procedures provided to children enrolled in Delta Dental of Wisconsin (DDWI) in Milwaukee.

Methods: We analyzed DDWI claims data for Milwaukee children aged 0-18 years between 2002 and 2008. We linked the ZIP codes of enrollees to the 2000 US Census information to derive racial/ethnic estimates in the different ZIP codes. We estimated the rates of preventive, restorative, endodontic, …

Management Of Dental Extraction In A Female Patient With Fanconi Anemia, Andre Peisker, Gregor F. Raschke, Arndt Guentsch, Korosh Roshanghias, Stefan Schultze-Mosgau

School of Dentistry Faculty Research and Publications

Oral surgery in patients with bleeding disorders is associated with a high risk of bleeding during and after surgery. This article is aimed to present the case of an eight-year-old girl suffering from severe Fanconi anemia with pancytopenia who underwent a dental extraction. The hemostatic effect of local administration of tranexamic acid in combination with a primary suture seems to be extremely helpful in order to reduce the necessity of blood products and the risk of postoperative bleeding.

Fasl Expression In Articular Discs Of Human Temporomandibular Joint And Association With Osteoarthrosis, Flavio De Alcantara Camejo, Luis Eduardo Almeida, Andrea Doetzer, Karina Sao Thiago Caporal, Viviane Ambros, Marina Azevedo, Luciana Reis Azevedo Alanis, Marcia Olandoski, Lucia Noronha, Paula C. Trevilatto

School of Dentistry Faculty Research and Publications

Background

Apoptosis is a programme of cell death which does not induce an inflammatory response. Recent previous research has suggested a correlation between temporomandibular internal derangement and apoptosis. Fas ligand (FasL) is an apoptosis‐inducing factor, known to trigger apoptosis through distinct signal pathways. This study aims to examine, by immunohistochemistry, the expression of FasL in temporomandibular joint (TMJ) articular discs of patients with anterior disc displacement with reduction (ADDwR) and without reduction (ADDwoR) in patients with and without osteoarthrosis (OA).

Methods

Forty‐two (n = 42) TMJ articular discs were divided into two cut‐offs: (i) 8 control, 17 ADDwR, 17 …

Injury Prevention With Physical Therapy, Karen Kott, Margaret F. Lemaster

Rehabilitation Sciences Faculty Publications

(First paragraph) Ergonomics is the study of human performance (positioning and movement) and workplace design, such as equipment, ambience, and placement. The purpose of ergonomics is to maximize productivity by increasing safety, improving work quality, reducing operator fatigue and discomfort, and decreasing the risk of work -related musculoskeletal disorders (MSDs).^1-3

Comparison Of Corded And Cordless Handpieces On Forearm Muscle Activity, Procedure Time And Ease Of Use During Simulated Tooth Polishing, Gayle Mccombs, Daniel M. Russell

Dental Hygiene Faculty Publications

Purpose: Dental professionals suffer from a high prevalence of work-related musculoskeletal disorders (MSD). Dental hygienists in particular have a high prevalence of pain in the forearms and hands. The objective of this study was to compare 1 cordless handpiece to 2 corded handpieces during simulated tooth polishing in terms of the muscle loads (recorded as electromyography (EMG) activity), duration of polishing procedure, and dental hygienist opinion about ease of use. Methods: EMG was used to quantify muscle electrical activity of 4 forearm muscles during simulated dental polishing with 2 corded handpieces (HP-A and HP-B) and 1 cordless handpiece (HP-C). A …

Fostering Dental Faculty Collaboration With An Evidence-Based Decision Making Model Designed For Curricular Change, Gary Stafford

Gary L Stafford DMD

This article introduces an innovative decision making model for adapting evidence-based practice to the specific needs of a department in a dental school. The design encourages suggestions for curricular change directly from the faculty members, while providing a mechanism that allows them to actively participate in the process through the use of evidence-based principles and practice. The nucleus of this model is an Advisory Council comprised of nine full-time departmental faculty members who, when charged, act as independent task force leaders who recruit other faculty members and lead small teams that investigate suggestions for curricular change. Following an accelerated investigative …