Endodontics and Endodontology Commons^™

The Effect Of Nanoparticles Incorporation On Antimicrobial And Bond Strength Properties Of Bio-Ceramic Sealer (An In Vitro Study), Hatem Tarek Dr., Wael Hussein Kamel Prof., Nehal Ezzat Sabet Prof., Adel Abdelwahed Associate Prof.

Future Dental Journal

Aim: This research intended to assess how the addition of nanoparticles impacts the antimicrobial effectiveness and bonding ability of bio-ceramic sealers when compared to resin-based sealers.. Materials and Methods: Bioactive glass nanoparticles (BG NPs) were prepared via a modified Stöber process. AH Plus and Bio-C Sealer were mixed with (BG NPs). Part I: Antibacterial tests involved 96 tubes divided into 6 main groups , tests were conducted using Enterococcus faecalis using direct contact test (DCT). Part II: Push-out tests utilized 32 extracted human permanent anterior teeth and were performed to evaluate bond strength. Results: Resin-based sealers and bio-ceramic sealers exhibited …

N Y State Dent J January 2025

The New York State Dental Journal

In the January 2025 issue, the reader will find the following feature articles:

• The Open Apex Challenge: A Case Series
• Pathological Changes in Soft Tissues Associated with Radiographically Normal Impacted Teeth
• Bridging the Dental Care Gap: Addressing Oral Health Disparities in New York State Nursing Homes
• Dental Management of a Talon Cusp on a Permanent Incisor in Traumatic Occlusion

This issue includes regular columns with regional news impacting the New York membership including: editorial and perspectives columns, legal, association activities, component news, continuing education opportunities, and classifieds.

The Open Apex Challenge: A Case Series, Joseph C. Stern D.D.S.

The New York State Dental Journal

Aim: To describe different endodontic techniques for managing immature necrotic teeth. Managing immature necrotic teeth has always posed challenges because of the unpredictable nature of treating roots with wide open apices that lack an apical stop. Traditionally, treatment involved placement of long-term calcium hydroxide, which was often tedious and required multiple visits. Compliance was frequently an issue, especially since many patients in this category are children and as a result, many teeth were lost due to infection or fracture. Recently, with the introduction of more biocompatible materials, a shorter treatment approach has been advocated using calcium silicate materials, such as …

Comparative Analysis Of Safety, Accuracy, Comprehensiveness, And Organization In Endodontic Patient Education Material: American Association Of Endodontics (Aae) Vs. Ai-Generated Content., Fabiola M. Salgado Reyes

Graduate Theses, Dissertations, and Problem Reports (ETD)

Comparative Analysis of Safety, Accuracy, Comprehensiveness, and Organization in Endodontic Patient Education Material: American Association of Endodontics (AAE) vs. AI-Generated Content. Fabiola Salgado Reyes, DMD Introduction: With patients increasingly using AI chatbots like ChatGPT4o and Copilot, it is essential to assess whether these tools can effectively support patient understanding of complex endodontic procedures. AI-generated responses may occasionally provide inaccurate, unsafe, disorganized, or content that is not comprehended. The purpose of this study is to examine if dental experts and patients can determine if patient education materials (PEMS) were 1) generated by AI; 2) medically safe; 3) accurate; 4) can be …

Intracanal Microbial Reduction After Root Canal Preparation With Different Tapered Instruments. An Ex-Vivo Study, Hala Fayek Khalil, Shehab Eldin Moahmed Saber, Mostafa Kholy, Soha Elhady, Esraa Abdelwahab

Dentistry

Aim: The objective of this ex vivo study was to assess the dual impact of instruments taper and irrigation activation methods on bacterial reduction in infected root canals. Materials and methods:42 extracted human molar teeth were inoculated with Enterococcus faecalis for 2 weeks to develop a mature biofilm. The samples were divided into four experimental groups and two control groups. The experimental groups underwent root canal preparation using two different instruments: XP Shaper (taper 0.04) and Reciproc Blue R25 (taper 0.08). Additionally, two different activation methods were tested: mechanical (XP Finisher) and sonic (EDDY). Bacterial reduction was assessed using Colony …

Cytocompatibility, Osteogenic Potential, Antibacterial And Antibiofilm Efficacy Of A Calcium‑Silicate‑Based Intracanal Medication, Shehabeldin Mohamed Saber Prof.Dr., Shereen Nader

Dentistry

This study assessed the biological and antimicrobial properties of a calcium silicate-based material and calcium hydroxide (CH) when used as intracanal medications. MTT assay, osteogenic differentiation of human periodontal stem cells (hPDLSCs), cell mineralization-assay, and determination of ALP activity were assessed to investigate the biological properties. While the agar well diffusion, crystal violet (CRV) assay and LIVE/DEAD staining of dentin slices infected with a mature E. faecalis biofilm were used to assess the antimicrobial properties. Normally distributed data were analyzed using one and two-way ANOVA and post hoc Tukey test, while for non-normally distributed data Kruskal Wallis and Dunn's tests …

Smear Layer Removal By Irrigation Adjuncts: A Scanning Electron Microscopy Study, Triet D. Vuong

Theses and Dissertations

Purpose: This study aimed to compare the intracanal smear layer removal ability of two adjunctive irrigation modalities: the AdvErL EVO laser, the GentleWave^® Procedure, and their combination, after minimally invasive canal instrumentation.

Methods: Forty molars were accessed, the mesiobuccal canals of maxillary and mandibular molars were prepared up to apical size 25.04 using rotary instrumentation, then irrigated using: conventional needle irrigation (CNI), laser-assisted irrigation (LAI), the GentleWave^® Procedure (GWP), and LAI followed by GWP (LAI+GWP). The teeth were then decoronated and split longitudinally. One-half of each root was selected for preparation and analysis under scanning electron microscope. Blinded …

Comparative Evaluation Of Three Endodontic Rotary File Systems In S-Shaped Root Canals: An In-Depth Analysis, Mudher Bahar

Theses and Dissertations

Objective: This study compares three endodontic file systems—XP‐3D Shaper⁺, EdgeFile X7 and WaveOne Gold in S‐shaped simulated canals in resin blocks. It aimed to quantify canals volumetric changes post‐instrumentation to guide clinical selection of a system that preserves tooth structure while efficiently shaping root canals.

Methods: Thirty S‐shaped canals in resin blocks were divided into three groups (n=10) for instrumentation with XP‐3D Shaper⁺, EdgeFile X7 or WaveOne Gold using the crown‐down technique and manufacturers recommended settings. A no‐treatment control provided a baseline for volumetric changes measured via CBCT scans analyzed with ITK‐SNAP. Data were analyzed using ANOVA and Tukey’s test …

Evaluation Of The Accuracy Of The Niti K-Files And Gutta-Percha Cones In Gauging The Apical Foramen Using The Scanning Electron Microscope: An In Vitro Study, Marie-Louise Slim, Roula El Hachem, Lara Nasr, Romy Zouein, Rami Mhanna, Mia Karam, Issam Khalil

International Arab Journal of Dentistry

Objectives: The aim of this study was to compare the accuracy of apical gauging using NiTi K-files and gutta-percha cones and determine the level of agreement between the two methods using a Scanning Electron Microscope (SEM).

Methods: 75 circular and straight canals of mandibular first premolars were used. Canals were shaped using the R-Motion system (RM; FKG Dentaire, La Chaux-de-Fonds, Switzerland) and gauged using NiTi K-Files and gutta-percha cones matching the shaping instrument. Diameters measured on SEM images were used as the reference standard.

Results: There was a statistically significant difference in the prediction of apical diameter …

Endodontic Management Of Dens Invaginatus Using Dynamic Navigation System In Pediatric Patient: A Case Report, Ayesha Fathima, Sahana Selvaganesh, Ganesh Jeevanandan, Pradeep Solete, Prabahdevi Maganur, Ather Syed Ahmed, Satish Vishwanathaiah

International Arab Journal of Dentistry

Dens invaginatus, also known as dens in dente, is a dental anomaly resulting from infolding the enamel organ into the dental papilla. Dynamic Navigation Systems (DNS) like Navident, offer real-time guidance during endodontic procedures, proving especially useful in complex cases, such as calcified canals or pulp obliteration. This case report presents a 13-year-old female, who reported the chief complaint of continuous pain in the upper left front tooth region. Based on the clinical and radiographical findings, a diagnosis of pulp necrosis and chronic periapical abscess in relation to maxillary canine (23) was established with dens invaginated palatal canal ( Oehler’s …

Conservative Non-Surgical Endodontic Management Of A Large Cyst-Like Periapical Tunnel Lesion With 22-Month Cbct Follow-Up: A Case Report, Smriti Rohilla, Sameer Makkar, Sandeep Gupta

International Arab Journal of Dentistry

The present case report epitomises the successful non-surgical management of a large cyst-like periapical tunnel lesion of endodontic origin due to trauma using Lesion Sterilization and Tissue Repair technique. Endodontic orthograde treatment (and re-treatment) was performed in association with triple antibiotic paste as an intra-canal medication in a sixteen-year boy. Preoperative CBCT as well as at the 22 months CBCT followup were used to compare the evolution of the healing of the lesion. Accurate diagnosis in combination with non-surgical orthograde endodontic treatment can lead to can lead to complete healing of large lesions without any need of surgical intervention.

A Comparison Of Endodontic Root-End Filling Techniques: A Micro-Computed Tomography (Micro-Ct) Analysis Part Ii, Andrew M. Marra

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract

A COMPARISON OF ENDODONTIC ROOT-END FILLING TECHNIQUES: A MICRO-COMPUTED TOMOGRAPHY ANALYSIS

Andrew Marra, D.D.S.

Introduction: Researchers have compared many endodontic root-end filling techniques for porosity, though few have used a micro-computed tomography analysis for comparisons. The purpose of this study was to evaluate total porosity volume of three different bio-ceramics filling materials with two techniques--hand compaction versus hand/ultrasonic compaction at an ultrasonic setting of 5% using Micro-CT Analysis.

Methods: Seventy-two human single canaled extracted teeth were selected for the study. All were subjected to orthograde endodontic treatment followed by root tip resection at 3-mm from the apex …

The Effect Of Carrier Type And Material Used On Results Of 1,1,1,2-Tetrafluoroethane Application To Teeth, Jonathon Logan Williams Dds

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: The formulation of a pulpal diagnosis is crucial to prescribe appropriate treatment recommendations for endodontics. The application of a cold stimulus to the tooth’s surface utilizing the refrigerant 1,1,1,2-Tetrafluoroethane (R-134a) is a common way to obtain a pulpal diagnosis. Cotton as a form of applicator is used to absorb the R-134a and create a temperature change in the pulp. There is limited research if there is a better material than cotton to generate this cold response. No studies to date have been found to determine if a sponge as an applicator would generate a more significant cold response than …

Histomorphometric Assessment Of Vibrational Forces On The Extended Midpalatal Suture, Aylin Pasaoglu Bozkurt, Özge Özdal Zincir, Asli Emincik

Journal of Dentistry Indonesia

Objective: This study determined the effects of vibrational forces on bone formation in the retention period of an expanded mid-palatal, histomorphometric suture in a rat model. Methods: Twenty-four 7–8- to 8-week-old male Wistar rats weighing 190.25 ± 15.35 g were separated into groups: only expansion (G1), expansion and 30 Hz vibration application (G2), and expansion and 111 Hz vibration application (G3). After 5 days of expansion, there were 12 days of retention. All animals were sacrificed, and their premaxilla were dissected. A histological examination evaluated the number of osteoblasts, osteoclasts, and capillaries, the amount of mineralized area, and …

A Case Series Of Successful Root Amputations And Hemisection: Retaining Compromised Teeth With Perio-Endodontic Lesion, Mohd Nazrin Isa, Nurul Ain Ramlan, Afzan Adilah Ayoub, Muhammad Hilmi Zainal Ariffin

Journal of Dentistry Indonesia

Case report: This case report presents three successful approaches for preserving a tooth through root amputation or hemisection. Patients were referred to the Periodontic Department due to mobility of teeth and swelling of the upper left first molar, upper right first molar and lower right first molar with considerably good oral hygiene. Patients were diagnosed with generalized severe periodontitis associated with perio-endodontic lesions. Therefore, non-surgical root canal treatment (NSRCT) was carried out prior to periodontal treatment, followed by surgical root resection (RR) of the distobuccal (DB) root of the upper left first molar, root resection of the distobuccal (DB) root …

A Survey Of Root Canal Treatment In Kurdish Community: A Pilot Study, Adil Othman Abdullah

Polytechnic Journal

Objective To analyze and describe the techniques and procedures employed in root canal treatment in the Kurdistan Region.

Method This study was conducted in 2023 and involved a simple random sample of 210 dentists/endodontists practitioners. The survey was spread throughout both private and governmental sectors in three distinct locations within the Kurdistan Region. The study aimed to enhance dentists' awareness and knowledge of the latest devices and advanced techniques used in the field of endodontics. The data were evaluated using basic summary statistics.

Results The eighty seven percentage of the practitioners responded. The majority of participants reported using step-back instrumentation …

J Mich Dent Assoc December 2024

The Journal of the Michigan Dental Association

Each month, The Journal of the Michigan Dental Association provides news, information, and features about Michigan dentistry to our state's oral health community and the MDA's 6,200+ members. It stands as the primary publication reaching Michigan dentists.

The December issue includes a timely cover feature on evidence supporting community water fluoridation, a clinical feature answering questions on patient dental records, a guest editorial on leadership by former MDA Journal Editor Dr. Bill Chase, and a Back Page article on how a personal touch makes a difference. We also provide our annual 2024 Author/Title Index and regular departments: The New Professional, …

Ex-Vivo Evaluation Of Clinically-Set Hydraulic Sealers Used With Di!Erent Canal Dryness Protocols And Obturation Techniques: A Randomized Clinical Trial, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Objectives This 2-part randomized parallel triple-blind clinical trial adopts a unique model assessing clinically-set hydraulic

calcium silicate-based sealers (HCSBS) after different root canal dryness protocols and obturation techniques.

Methods For the first phase of the study, 24 teeth scheduled for orthodontic extractions were allocated into four groups

according to the canal dryness protocol and the obturation technique. G1 (CLC-AHP): cold lateral compaction (CLC) with

AH Plus sealer, G2 (CLC-ES-SD): CLC with Endosequence (ES) after standard canal(s) dryness (SD); G3 (SC-ES-SD):

matching single-cone (SC) with ES after SD; G4 (SC-ES-PD): as G3 but after partial canal(s) dryness (PD). Teeth were

extracted …

J Mich Dent Assoc November 2024

The Journal of the Michigan Dental Association

Each month, The Journal of the Michigan Dental Associationprovides news, information, and features about Michigan dentistry to our state's oral health community and the MDA's 6,200+ members. It stands as the primary publication reaching Michigan dentists. The November issue includes:

• Clinical Feature on discontinuation of lead apron use for dental radiology
• An introduction to the MDA Team and how they can be contacted to serve specific member needs
• A Back Page article on beginning practice and family
• Regular Departments: New Dentist Column, Updates on the MDA Foundation, MDA Services, Dentistry and the Law, Staff Matters

This month we welcome …

Biological Effect Of Modern Bioactive Materials Used In Direct And Indirect Capping; In Vitro Study, Irina Maria Gheorghiu, Alexandru Andrei Iliescu, George Alexandru Denis Popescu, Stana Paunica, Anca Silvia Dumitriu

Journal of Mind and Medical Sciences

Objective. In this study, the biological effect of MTA Repair HP (Mineral Trioxide Aggregate Repair High Plasticity) and Biodentine have been tested on a stabilized fibroblast cell line NCTC clone 929. Materials and Methods. We assessed quantitative and qualitative parameters related to cytotoxic effect of the investigated products. The experimental period was 96 hours. Statistical analysis was performed with Kruskal-Wallis and Wilcoxon tests. Results. The detached cells test showed no statistically significant difference on cell culture for Biodentine and MTA Repair HP, while for the cellular density assay we found the same biological effect on the tested fibroblasts in the …