Endodontics and Endodontology Commons^™

Clinicopathological Study Of Oral Lichen Planus And Oral Linchenoid Reaction, Gubod Eb Robson

Student Works (2020-2029)

Introduction: Oral lichen planus is a chronic inflammatory disease that affects the mucosa of the oral cavity. Oral lichenoid reactions/ lesions share many clinical and histopathological features with oral lichen planus, and represent a response to extrinsic or causative factors (drugs, allergens). Aim: The purpose of this study was to evaluate the clinical and histopathological features of oral lichen planus and oral lichenoid reactions/ lesions. Objectives: The objectives of this study were to assess the clinical and histopathological features of patients diagnosed with oral lichen planus and oral lichenoid reaction/ lesions. This study also sought to investigate the association between …

คุณสมบัติทางเคมีและทางกายภาพของไตรแคลเซียมซิลิเกตซีเมนต์ชนิดก่อตัวเร็วสำหรับงานสร้างเนื้อเยื่อใหม่ทางวิทยาเอ็นโดดอนต์, คงธรรม วิมลสุทธิกุล

Chulalongkorn University Theses and Dissertations (Chula ETD)

การศึกษานี้มีวัตถุประสงค์เพื่อศึกษาส่วนประกอบทางเคมีและคุณสมบัติทางกายภาพของ ไตรแคลเซียมซิลิเกตซีเมนต์ชนิดก่อตัวเร็วที่สังเคราะห์ขึ้นจากห้องปฏิบัติการเพื่อใช้ในสำหรับงานทันตกรรม สังเคราะห์ไตรแคลเซียมซิลิเกตโดยการเผาซิลิกา (SiO2) กับแคลเซียมคาร์บอเนต (CaCO3) ที่อุณหภูมิ 1450 องศาเซลเซียสเป็นเวลา 2 ชั่วโมง ทดสอบส่วนประกอบทางเคมีของไตรแคลเซียมซิลิเกตที่สังเคราะห์ได้โดยวิธีการเลี้ยวเบนรังสีเอ็กซ์ (XRD) และเอกซเรย์ฟลูโอเรสเซนส์ (XRF) จากนั้นนำผงไตรแคลเซียมซิลิเกตผสมกับเซอร์คอนในสัดส่วนร้อยละ 10 20 และ 30 เพื่อเป็นความทึบรังสี และใช้lสารละลายแคลเซียมคลอไรด์เข้มข้นร้อยละ 20 เพื่อเร่งปฏิกิริยา เพื่อให้เป็นไตรแคลเซียมซิลิเกตซีเมนต์ชนิดก่อตัวเร็ว จากนั้นทดสอบคุณสมบัติทางกายภาพได้แก่เวลาแข็งตัวขั้นต้นและสมบูรณ์ ความทนแรงกด ความทึบรังสี และความเป็นกรด-ด่าง โดยอ้างอิงจากมาตรฐานไอเอสโอ 6876 (2012) และ 9917 (2007) จากการทดสอบส่วนประกอบทางเคมีพบว่าส่วนผงของไตรแคลเซียมซิลิเกตซีเมนต์มีส่วนประกอบหลักเป็นไตรแคลเซียมซิลิเกตเช่นเดียวกับไบโอเดนทีน ไตรแคลเซียมซิลิเกตซีเมนต์มีเวลาแข็งตัวที่นานขึ้นเมื่อมีสัดส่วนของเซอร์คอนมากขึ้น โดยมีเวลาแข็งตัวไม่แตกต่างจากไบโอเดนทีนอย่างมีนัยสำคัญเมื่อมีเซอร์คอนร้อยละ 20 เมื่อผสมเซอร์คอนมากกว่าร้อยละ 10 ส่งผลให้ไตรแคลเซียมซิลิเกตซีเมนต์มีความทนแรงกดมากขึ้นและไม่แตกต่างจาก ไบโอเดนทีน ไตรแคลเซียมซิลิเกตซีเมนต์ที่มีเซอร์คอนร้อยละ 20 และ 30 มีความทึบรังสีมากกว่า ไบโอเดนทีน (5.64 และ 6.47 มิลลิเมตรของอะลูมิเนียม) ปริมาณเซอร์คอนที่ต่างกันไม่ส่งผลทำให้ความเป็นกรด-ด่างของไตรแคลเซียมซิลิเกตซีเมนต์เปลี่ยนแปลง โดยมีค่าความเป็นกรด-ด่างมากกว่าไบโอเดนทีนในช่วงเวลา 3 ชั่วโมงถึง 3 สัปดาห์ (ประมาณ 21.1 ถึง 12.8) ดังนั้นไตรแคลเซียมซิลิเกตซีเมนต์ที่มีเซอร์คอนร้อยละ 20 มีคุณสมบัติทางกายภาพที่เหมาะสมสำหรับการใช้งานทางทันตกรรม

Prevalence Of Enterococcus Faecalis And Candida Albicans In Teeth Requiring Endodontic Retreatment, Sopida Thipung

Chulalongkorn University Theses and Dissertations (Chula ETD)

Endodontic failures are mainly caused by persistence of microorganisms in the root canal system. Enterococcus faecalis has been reported as the most commonly isolated species from root canals with endodontic treatment failure in many studies, but was not the dominant species in others. Recent studies showed that Candida albicans is found together with Enterococcus faecalis within infected root canals in a polymicrobial community and both species can form biofilm. Therefore, this study aims to investigate the prevalence of Enterococcus faecalis and/or Candida albicans in root canals requiring retreatment by using both culture-based and polymerase chain reaction (PCR) techniques, and examine …

Retention Force And Wear Characteristic Of Ball And O-Ring Attachment In Chulalongkorn Mini-Implant Overdenture System., Thanakorn Thimkam

Chulalongkorn University Theses and Dissertations (Chula ETD)

The purpose of this experimental study was to evaluate wear characteristics and retention force of the RetenDent mini-implant overdenture system (Chulalongkorn product) after the insertion-removal fatigue test. One-piece mini-implants attachment system for overdenture, Osstem MS denture® type implant (OSSTEM, Germany GmbH), and RetenDent mini-implant were tested. All samples were subjected to repeated insertion and removal fatigue cycles by the universal testing machine (E1000, INSTRON Instrument, England). Subjected fatigue cycles were 5500 with 1.00Hz frequency to mimic a 5-year insertion and removal three times per day. The retention force was measured by separating the O-ring from the abutment and recorded with …

The Overall Esthetic Assessment Of Anterior Single-Tooth Implant Restoration Using Esthetic Sustainable Criteria In 5-Year Clinical Cross-Sectional Study, Tharitsawan Sangprasertkul

Chulalongkorn University Theses and Dissertations (Chula ETD)

Objective: To compare the esthetic score (using the Esthetic Sustainable Criteria) among titanium, zirconia and gold alloy abutments of single tooth implant in 5 years follow up. Mateirals and Methods: 24 patients who were treated with single anterior implant at Faculty of Dentistry, Chulalongkorn University were recruited. There were 8 patients for each abutment material. Demographic data, biological parameters such as modified plaque index (mPI), modified sulcus bleeding index (mSBI), probing depth (PD), radiographic images (Periapical films and CBCT images) were collected. The esthetic score (gingival, prosthodontic and bone score) was evaluated according to the Esthetic Sustainable Criteria. The mean …

Comparison Of Endodontic Treatment Planning Decisions Using Cone Beam Computed Tomography Versus Periapical Radiography In Previously Endodontically Treated Molars, Sarah Alkanderi

Theses and Dissertations

Objectives: The aim of this study was to determine if treatment plans differ when evaluating previously endodontically treated molars using periapical images (PA’s) alone versus PA’s and CBCT.

Methods: A retrospective cohort chart review was conducted including 67 previously treated molars that had a CBCT taken. Two calibrated board-certified endodontists evaluated standard PA’s. A data sheet questionnaire regarding radiographic findings and treatment plan decisions was completed. Two weeks later, the same steps were repeated but the examiners evaluated both PA’s and CBCT images and again arrived at a recommended treatment plan.

Results: Agreement between raters was assessed with Cohen’s Kappa …

Achieving Dentin Conservation Using Dynamic Navigation Technology For Locating Calcified Canals, Madison W. Saunders

Theses and Dissertations

Purpose: Pulp canal obliteration (PCO) is a common sequela of dental trauma, caries, restorations and vital pulp therapy procedures. Despite the application of high magnification and CBCT imaging, access cavity preparation for such cases is prone to procedural errors that may lead to substantial loss of dentin structure thereby reducing the long-term prognosis. This study aimed to achieve dentin conservation using a novel computer assisted dynamic navigation system (Navident) in comparison to freehand access preparation for locating calcified canals.

Methods: Forty maxillary and mandibular central incisors (tooth #9 and tooth #25) were 3-D printed to simulate PCO. They were randomly …

Orthodontic Camouflage Treatment Of A High-Angle Severe Skeletal Class Ii Discrepancy, Deryana Marshadhianti, Miesje Karmiati Purwanegara

Journal of Dentistry Indonesia

Proper orthodontic treatment in adult patients with severe skeletal Class II discrepancy can be challenging. Recently, miniscrew implants have been used as a strategy to treat skeletal Class II patients. Objective: This report illustrates a skeletal Class II malocclusion management combining straight wire technique and miniscrew implant anchorage. Case report: The patient was a 21-years- old Indonesian female with Class II skeletal discrepancy, a retrognathic mandible, a high mandibular plane angle, and a mouth breathing habit due to a history of allergic rhinitis. Anchorage control is important in the sagittal and vertical directions. Miniscrew implants were placed in the …

Antimicrobial Efficacy Of Myrmecodia Pendens Extract And Fraction Combination Against Enterococcus Faecalis Atcc 29212, Faisal Kuswandani, Mieke H. Satari, Ani M. Maskoen

Journal of Dentistry Indonesia

Enterococcus faecalis can withstand harsh environmental conditions in the root canal and cause a secondary infection. Myrmecodia pendens is an herbal medicine rich in polyphenol compounds that have antibacterial, antioxidant, and anticancer properties. Objectives: To analyze the effects of M. pendens fraction combination on the sensitivity of E. faecalis. Methods: The minimum inhibitory concentration (MIC) was determined using a serial microdilution method, and the minimum bactericidal concentration (MBC) was determined by adding the test sample to sterile Mueler Hinton agar medium. Results: The MIC of combination 1 (hexane-ethyl acetate, HE) was 0.049 mg/mL, whereas those of combinations 2 (hexane-water, HA) …

Persistent Endodontics Pathogens Biofilm Inhibited By Lactobacillus Reuteri Indonesian Strain, Armelia Sari Widyarman, Njoo Kiky Elysia Lazaroni

Journal of Dentistry Indonesia

Lactobacillus reuteri is known as probiotics that effective to improve oral health. Objective: To analyze the effect of L. reuteri Indonesian strain, towards Enterococcus faecalis and Candida albicans biofilm growth. Methods: This study was conducted using biofilm assay. Each E. faecalis ATCC-29212 and C. albicans ATCC-10231 were cultured in Brain Heart Infusion Broth, distributed into 96 well-microplate and incubated for 24h, 37°C, anaerobic condition for E. faecalis and aerobic condition for C. albicans. L. reuteri LC382415 (Indonesian strain) was cultured in deMann Rogosa Shar pe Broth and diluted into different concentrations (10⁸,10⁶, and 10^{4 …}

Expert Search For "Antibiotics For The Urgent Management Of Symptomatic Irreversible Pulpitis, Symptomatic Apical Periodontitis, And Localized Acute Apical Abscess", Kelly K. O'Brien

Expert Search Strategies

This search strategy was constructed to support the research for the peer reviewed article listed above. Full article abstract:

Background

Patients with pulpal and periapical conditions often seek treatment for pain, intraoral swelling, or both. Even when definitive, conservative dental treatment (DCDT) is an option, antibiotics are often prescribed. The purpose of this review was to summarize available evidence regarding the effect of antibiotics, either alone or as adjuncts to DCDT, to treat immunocompetent adults with pulpal and periapical conditions, as well as additional population-level harms associated with antibiotic use.

Type of Studies Reviewed

The authors updated 2 preexisting systematic …

Facial Tissue Changes With Microimplant Assisted Rapid Palatal Expanders, Kevin Shimizu

Orthodontics and Endodontics Theses

Introduction: Skeletal expansion has been a treatment modality in orthodontics and orthopedics to correct skeletal transverse discrepancies with maxillary constriction. The utilization of microimplants in conjunction with these palatal expanders offers a higher degree of pure skeletal expansion and minimizes the dental side effects. The purpose of this study is to evaluate the changes of the hard and soft tissues of the face after skeletal expansion for orthodontics. Methods: 36 patients who had received successful expansion with a microimplant assisted rapid palatal expander were compared to their pre-expansion records. All patients received CBCTs from which a 3-D analysis configuration was …

Perception Of Bone Mineral Loss On Cone-Beam Computed Tomography (Cbct) & Digital Periapical (Pa) Film: An Ex-Vivo Comparison, David P. Hamm

Theses & Dissertations

Using micro computed tomography (micro-CT) as a reference standard, the purpose of this investigation was to evaluate the influences of bone mineral loss and radiographic contrast in digital periapical (PA) film and cone-beam computed tomography (CBCT). Seven dog and human mandibles were sectioned, followed by modification via cortical bone drilling to create 248 lesions and/or trabecular bone acid demineralization to create 96 coronal slice pairs. Pretreatment and post-treatment radiographs (PA, CBCT, and/or micro-CT) were taken for lesion rating/perception in addition to two-dimensional (area) and three-dimensional (volumetric) measurements of 50 drilling lesions and 20 coronal slice pairs. 4-7% bone mineral loss …

Efficacy Of A Dissolvable Strip With Calcium Sodium Phosphosilicate (Novamin®) In Providing Rapid Dentine Hypersensitivity Relief, John Gallob, Martin R. Ling, Pejmon Amini, Avinash Patil, Mounir Atassi

Dental Medicine Faculty Research

Objective To evaluate the efficacy of a dissolvable strip containing 15% w/w calcium sodium phosphosilicate (CSPS) (Novamin®) in providing rapid relief from dentine hypersensitivity (DH). Methods In this examiner-blind, proof-of-principle study, 120 healthy adults with DH were randomized 1:1 to the Test strip, professionally applied to facial surfaces of two selected teeth, or to No treatment. Sensitivity was assessed at baseline and 10 min, 2 h and 4 h post-application in response to evaporative (air) and tactile stimuli (measured by Schiff sensitivity scale/a numeric rating scale and tactile threshold, respectively). Change from baseline was analyzed by ANCOVA. Results At 10 …

Xerostomia: A Comprehensive Review, Danevin Putrus

Honors College Theses

This thesis will be highlighting the condition known as Xerostomia. Xerostomia is the condition also known as “dry mouth”. This condition affects many people all throughout the world with symptoms causing bad breath, discomfort, difficulty speaking and many other. The seriousness of this condition can lead to cardiovascular disease, dementia, respiratory infections, diabetes mellitus, rheumatoid arthritis, and even cancer (Absolutedental.com). Currently there is not any one specific solution for the condition although many have been proposed. Throughout the thesis I will closely examine former research studies, current solutions proposed, and propose my own study and solution based on research and …

Root And Canal Morphology Of Maxillary Premolar Teeth In An Egyptian Subpopulation Using Two Classification Systems: A Cone Beam Computed Tomography Study, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Aim: To investigate the number of roots and root canal configurations using two coding systems and the root canal diverging and merging levels in extracted maxillary premolars in an Egyptian subpopulation using cone beam computed tomography (CBCT). Methodology: A total of 700 maxillary premolars were examined using CBCT in an Egyptian subpopulation. The number of roots was identified, and root canal configurations were classified according to Vertucci's classification and a new system for classifying root and canal morphology. In addition, the position where roots bifurcated and the levels where canals merged or diverged were identified. Fisher's exact test and independent …

Antibiotics And Antimicrobial Resistance: An Evaluation Of The Knowledge, Attitude And Perception Among Dental Students And Academic Deans And Department Chairs Within U.S. Dental Schools, Magdalena S. Holz

Theses and Dissertations

Purpose: This study aimed to survey current 3^rd and 4^th year dental students, academic deans, and department chairs within U.S. dental schools to analyze the level of understanding; education; guidelines; and overall awareness regarding antibiotic use within dentistry and antimicrobial resistance.

Methods: A 25-question survey intended for 3^rd and 4^th year dental students and a 20-question survey intended for academic deans and various department chairs of U.S dental schools were each developed utilizing REDCap. The survey invitations were sent via e-mail to the current academic dean of each U.S. dental school for distribution.

Results: There were …

Postoperative Pain After Single Visit Root Canal Treatment Using Multiple Rotary Files And Single Reciprocating File Instrumentation Techniques In Asymptomatic Mandibular Molars With Necrotic Pulps: A Randomized Control Clinical Trial, Mostafa M.A. Elkholy, Kariem M. El Batouty, Ehab Hassanein

Dentistry

Aim This prospective clinical study compared postoperative pain following single visit root canal treatment in patients with asymptomatic mandibular molar teeth with necrotic pulps using two different instrumentation techniques: multi-file rotary (ProTaper Universal), and reciprocating single-file (WaveOne) techniques.

Methodology Forty patients, who fulfilled specific inclusion criteria were randomly and equally assigned to 2 groups according to the root canal instrumentation technique used. All treatments were performed in one appointment. Patients were asked to complete a numerical rating scale (NRS) for recording pain levels at 6, 12, 24, 72 h and at 1 week postoperative intervals. In addition, the Face Pain …

Management Of The Open Apex Using A Bioceramic Apical Barrier: Success And Survival Rates At Virginia Commonwealth University, Adam Sarnowski

Theses and Dissertations

Purpose: The aim of this study was to assess the outcome of treatment of teeth with open apices managed by the orthograde placement of a bioceramic apical barrier as well as to identify potential outcome factors for this type of treatment. Methods: Patient records were pooled from graduate resident cases completed at Virginia Commonwealth University between January 1, 2010 and May 31, 2018. A total of 515 patients were identified using relevant ADA codes and a key word search within the patient record database. A total of 104 patients (119 teeth) had an open apex that had NSRCT utilizing a …

Impact On Bacterial Micro-Leakage In Exposed Root Canal Obturation Material In Teeth Irrigated With Different Solutions, Khalifa W. Alhaddad

Theses and Dissertations

Purpose: Determine the timeframe of bacterial penetration that occurs to the apex when obturation material (gutta percha) is exposed to bacteria for a set period of time (45 days) and to determine if bacterial penetration of the obturated root is influenced by the type of irrigant used during the final rinse (17% EDTA vs 2% Chlorhexidine vs full strength 5.25% NaOCl). Methods: Thirty-six extracted teeth, including six controls, were instrumented and irrigated with 5.25% NaOCl followed by a final rinse of either: 17% EDTA, 2% Chlorhexidine, or 5.25% NaOCl, and then obturated. Each root was suspended between two chambers: the …