Endodontics and Endodontology Commons^™

Removable Appliance Therapy For Interceptive Orthodontic Treatment, Vikas Gupta, James Chen

Orthodontics and Endodontics Theses

Introduction: Socioeconomically disadvantaged children have limited access to orthodontic services not only because of their families’ competing needs for limited resources, but also because of the limited availability of orthodontists in their communities and a shortage of orthodontists who are willing to treat patients enrolled in Medicaid. We will systematically explore the hypothesis that an early interceptive treatment protocol using removable appliances provides the same treatment outcome but better cost-effectiveness than a traditional fixed-appliance protocol. Methods: Interim data on a prospective study with patients being treated either in private practice with rational fixed Phase I orthodontic treatment (n=11) or in …

Comparison Of Maxillary Expansion Between Clear Aligners And Removable Expansion Appliance In The Mixed Dentition, Micaela Zaverdinos, Paul Kasrovi, James Chen, Heesoo Oh

Orthodontics and Endodontics Theses

Introduction: Orthodontic and orthopedic expansion is necessary to create space to resolve crowding due to arch deficiency or tooth size discrepancy. The Invisalign First clear aligner appliance as a modality for early interceptive orthodontic treatment has become incorporated into orthodontic practices in very recent years. The present study aims to investigate the magnitude of expansion of the Invisalign First clear aligner appliance compared to a Schwartz removable expander in patients with mixed dentition. Additionally, the study aims to compare the efficacy and predictability of Invisalign First clear aligners in this population. Materials & Methods: In this retrospective study, a sample …

Accuracy And Reliability Of A Fully Automated Landmark Identification System On Cone Beam Computed Tomography, Ali Ghowsi, David Hatcher, Heeyeon Suh, Joorok Park, Heesoo Oh

Orthodontics and Endodontics Theses

ABSTRACT Introduction: Medical imaging continues to play an increasing role in health care and is an integral part of medicine and dentistry. Recent technological advancements have led to the development of fully automated landmark identification (ALI) systems capable of tracing Cone-Beam Computed Tomography (CBCT). The purpose of this study was to evaluate the accuracy and reliability of an ALI system as a tool for automatic landmark location compared to human judges. Methods: One hundred subjects’ CBCT volumes from multiple imaging centers were traced by two human judges who were calibrated and had an ICC close to 1. Fifty-three landmarks were …

Complications Reported In Maxillary Skeletal Expansion, Jacqueline Payne, Audrey Yoon, Heeyeon Suh, Joorok Park, Heesoo Oh

Orthodontics and Endodontics Theses

Introduction: The aim of this study was to determine the types and prevalence of complications following MARPE protocol at University of the Pacific and to investigate the complication of asymmetry using CBCT analysis. Methods: In the first portion of this study, 97 patients who started treatment prior to July 2020 and who had MARPE expander treatment at the University of the Pacific were included. Chart review and evaluation of progress clinical photographs were used to report the following complications: inflammation, pain, appliance malfunction, broken microscrew, and pulpitis. In the second portion of this study, 77 patients from a private practice …

An In Vitro Evaluation Of The Wirele-X Electronic Apex Locator, Lucas M. Brand Dds, Craig A. Dunlap Dds, Ray Scott Dds Msd, Ove A. Peters Dmd Ms Phd

Orthodontics and Endodontics Theses

Aim: The aim of this study was to evaluate the accuracy of the Wirele-X (Forum Tec, Ashkelon, Israel), a new Bluetooth-enabled electronic apex locator (EAL). The accuracy of the Wirele-X and the Root ZX II (J. Morita, Tokyo, Japan) was compared in vitro using an alginate model. Materials/Methods: Thirty-one extracted single-rooted human teeth with mature apices were decoronated at the CEJ. Under 10X magnification, actual canal lengths (ACL) were determined. The teeth were embedded in alginate and electronic canal length measurements were obtained using the Root ZX II and Wirele-X EALs. Each tooth was measured three times with both EALs. …

Impact Of Systemic Pathologies On Increased Risk Of Endodontic Disorders, Jayla Mercer

Honors Undergraduate Theses

The purpose of this study is to evaluate possible factors that have the potential to contribute to increased risk for endodontic disease. Some of the factors that were analyzed in this study include current diagnosis with systemic disease, particularly diabetes and cardiovascular disease. Association between these factors, treatment outcome, and prognosis have also been analyzed. Since the topic of endodontic medicine and its association with systemic disease is not fully explored in the literature, it is critical to conduct studies to further contribute to this topic. This study analyzed clinical data from patients who received treatment for endodontic disease between …

Efficacy Of Chitosan Paste As Intracanal Medication Against Enterococcus Faecalis And Candida Albicans Compared To Calcium Hydroxide, Pasika Thien-Ngern

Chulalongkorn University Theses and Dissertations (Chula ETD)

Introduction: Enterococcus faecalis and Candida albicans are frequently found in persistent endodontic infection and are resistant to calcium hydroxide (Ca(OH)2), a commonly used intracanal medication. Thus, an effective and safe antimicrobial medication against such refractory infection is necessary in endodontic retreatment, so we aimed to test the efficacy of chitosan paste against these microorganisms compared with Ca(OH)2 in root canals of extracted human teeth. Methods: Thirty-six sterilized human root samples prepared from extracted premolars and upper maxillary incisors were infected with E.faecalis for 14 days, while 32 were infected with C.albicans for 48 hours, for mature biofilm formation. The samples …

1 Long Term Impact Of Microimplant Assisted Rapid Palatal Expansion On Soft Tissue Nasal Morphology, Laura Chew, Heeyeon Suh, Joorok Park, Heesoo Oh

Orthodontics and Endodontics Theses

Introduction: When skeletal transverse discrepancies exist between the maxilla and mandible, they commonly manifest in dental malocclusion. If left uncorrected, the malocclusion can lead to periodontal issues, tooth fractures, tooth loss, or other significant dental problems. Utilization of microimplants in palatal expansion aims to correct transverse discrepancies between the maxilla and mandible by separating the palatal suture in a parallel manner aimed at maximizing skeletal changes and minimizing dental side effects. Overlying soft tissue changes can be affected by the induced skeletal changes. The purpose of this study is to evaluate skeletal expansion and the overlying soft tissue change that …

Comparative Evaluation Of Enamel Surface Roughness After Minimally Invasive Treatment Of White Spot Lesions: An In Vitro Study, I'Udzuri Md Jazam

Student Works (2020-2029)

Objective: To investigate the surface roughness of resin infiltrated proximal white spot lesions (WSLs) with ICON® subjected to a pH cycling challenge and compare its surface roughness with WSLs treated with that of Duraphat®. Materials and Methods: Sixty extracted sound premolars were used in this in vitro study. Optical coherence tomography (OCT) was used for baseline enamel readings and randomly divided into four groups having fifteen specimens in each. Groups were assigned as: Sound (negative control), Demineralised (positive control), ICON®, and Duraphat®. All specimens except for the Sound group were subjected to an initial demineralisation in a solution containing 2.2mM …

Radiographic Comparison Using Cbct-Pai And Volumetric Analysis Of Endodontically Treated Teeth: A Retrospective Cohort Study, Jeremy Hargrove

Theses and Dissertations

Purpose: To assess the changes in CBCT-PAI score as well as 3-D volume of periapical findings associated with endodontically treated roots and to see how these findings change over time.

Methods: Retrospective chart review with the following inclusion criteria: 1. At least one tooth was endodontically treated at the endodontic private practice; 2. Patient had a recall examination and the treated tooth was asymptomatic, functional and a CBCT was exposed; 3. CBCT interpretation found a periapical finding associated with the treated tooth; 4. A follow-up recall examination was completed and CBCT exposed. Cases that fulfilled the inclusion criteria had the …

In Vitro Evaluation Of The Solubility Of Endosequence Bc Sealer In Acidic Solutions, Inderpal S. Sappal

Theses and Dissertations

Purpose: In recent years, bioceramic sealers (BCS), such as EndoSequence BC Sealer, have gained popularity in endodontic practices. Previous research has found BCS difficult to remove from canals during retreatments when compared with other endodontic sealers. Acidic solutions have been found to inhibit the set of BCS and increase their solubility. The purpose of this study was to evaluate the efficacy of acidic solutions in the removal of BCS as compared with a traditional retreatment solvent.

Methods: Roots of extracted human single rooted teeth (N=15) were prepared into 17 mm sections, then instrumented with ProTaper Gold (PTG) rotary files up …

Current Trends In The Management Of Endodontic Emergencies, Asmi Shah

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: The management of endodontic emergencies has changed over the last few decades and varies from practice to practice. This is due to the development of new materials, new irrigation techniques, and new evidence-based research which supports clinical success. An updated questionnaire is necessary to further advance the clinical knowledge in endodontic emergencies based on current practices. Therefore, the purpose of this research is to determine the difference practice modalities between members who are board certified, who are not board certified, and endodontic graduate residents.

Materials and Methods: In 2021, every member of the American Association of Endodontics …

การพัฒนาไบโอเซรามิกรูทคาแนลซีลเลอร์, สุรีย์พร โอฬารสกุลวงศ์

Chulalongkorn University Theses and Dissertations (Chula ETD)

การศึกษานี้มีวัตถุประสงค์เพื่อเปรียบเทียบคุณสมบัติทางกายภาพและองค์ประกอบทางเคมีของไบโอเซรามิกรูทคาแนลซีลเลอร์ที่ผลิตจากเปลือกหอยแครง (ไบโอซีลเลอร์) กับไบโอเซรามิกรูทคาแนลซีลเลอร์ซึ่งมีจำหน่ายในท้องตลาด (ไอรูทเอสพี) โดยทำการสังเคราะห์ผงไตรแคลเซียมซิลิเกตจากเปลือกหอยแครง และตรวจสอบองค์ประกอบทางเคมีด้วยการทดสอบการเลี้ยวเบนของรังสีเอกซ์ ผลการทดสอบพบว่าสารที่ผลิตได้ประกอบด้วยไตรแคลเซียมซิลิเกตเป็นส่วนประกอบหลัก จากนั้นจึงนำมาผสมกับสารเติมแต่งเพิ่มเติมเพื่อผลิตเป็นไบโอซีลเลอร์ ทำการทดสอบคุณสมบัติทางกายภาพของไบโอซีลเลอร์และไอรูทเอสพีตามมาตรฐานการทดสอบไอเอสโอ 6876/2012 ได้แก่ การไหลแผ่ เวลาแข็งตัว ความหนาชั้นฟิล์ม การละลายตัว และความทึบรังสี นอกจากนี้ได้ทำการศึกษาค่าความเป็นกรด-ด่าง และปริมาณแคลเซียมอิออนที่ถูกปล่อยออกมาที่ระยะเวลา 3 ชั่วโมง 1 วัน 3 วัน 7 วัน 14 วัน และ 28 วัน รวมถึงศึกษาองค์ประกอบทางเคมีหลังแข็งตัวเต็มที่ของซีลเลอร์ทั้งสอง คุณสมบัติทางกายภาพของไบโอซีลเลอร์และไอรูทเอสพีมีค่าผ่านตามมาตรฐานไอเอสโอ 6876/2012 ยกเว้นคุณสมบัติด้านการละลายตัว สำหรับค่าความเป็นกรด-ด่างของไบโอซีลเลอร์และไอรูทเอสพีในช่วงระยะเวลาที่ทำการทดสอบพบว่ามีค่า 9.23-10.35 และ 8.83-10.39 ตามลำดับ ส่วนปริมาณแคลเซียมอิออนที่ถูกปล่อยออกมาพบว่าไอรูทเอสพีปล่อยแคลเซียมอิออนมากกว่าไบโอซีลเลอร์อย่างมีนัยสำคัญทางสถิติในช่วงแรกแต่ไม่แตกต่างกันที่ช่วงระยะเวลา 14 และ 28 วัน นอกจากนี้การศึกษาองค์ประกอบทางเคมีของไบโอซีลเลอร์และไอรูทเอสพีหลังแข็งตัวเต็มที่พบองค์ประกอบที่ยืนยันการเกิดปฏิกิริยาไฮเดรชันของวัสดุ ดังนั้นจึงสามารถสรุปได้ว่าไบโอซีลเลอร์มีคุณสมบัติทางกายภาพที่ดีและมีคุณสมบัติใกล้เคียงกับไอรูทเอสพี

Assessment The Propolis Effect Versus Calcium Hydroxide Effect As Intracanal Medications On Post-Operative Pain In Necrotic Teeth, Engy M. Kataia

Dentistry

Aim: to evaluate the postoperative pain of using Propolis versus Calcium hydrox- ide as intracanal medications on post-operative pain in necrotic teeth. Subjects and Methods: 40 patients requiring endodontic treatment for single rooted teeth were en- rolled in this analysis. The selected patients were separated into two groups with 20 pa- tients each; Group І: Propolis paste. Group II: Ca (OH)2 paste. The local anesthesia was administrated, and the working length determined by Root ZX apex locator, and then confirmed radiographically. The root canals were mechanically prepared in a crown- down approach using the “TF Adaptive” setting on Elements Motor. …