Endodontics and Endodontology Commons^™

Effect Of Ultrasonic Combined With Solvent On Gutta-Percha And Bioceramic Sealer Removal In Middle And Apical Third Of The Root Canal: An Ex Vivo Study, Eko Fibryanto, Wiena Widyastuti, Adi Hidayat, Lisiana Hastuty

Journal of Dentistry Indonesia

Objective: This study aims to investigate the effectiveness of ultrasonic tip with and without solvent in removing gutta-perca and bioceramic sealer from the middle and apical third of the root canals. Methods: This is a true experimental study with randomized pretest-posttest control group design. Eighteen freshly extracted straight single-rooted mandibular first premolars were confirmed by CBCT and selected. The teeth were decoronated until a length of 16 ± 0.5mm. The teeth were prepared and obturated using gutta-percha and bioceramic sealer with a hydraulic condensation technique. Pre-instrumentation CBCT imaging of all teeth was carried out to obtain the initial volume of …

Reliability Of Three-Dimensional Micro-Computed Tomography Root Canal Analysis Using Drishti Software: A Pilot Study, Nurulaqmar Iwani Samsudin, Marlena Kamaruzaman, Afiq Azizi Jawami

Journal of Dentistry Indonesia

In recent years, micro-computed tomography (micro-CT) has become a promising tool for non-destructive imaging and the study of root canal morphology in endodontics. However, the reliability of such analyses heavily relies on the accuracy and consistency of the software used for image processing. Objective: This study aims to investigate the reliability of two different micro-CT voxel sizes using open-source three-dimensional (3D) software (Drishti v3.0) used to identify and quantify the Apical Foramen (AF) and Apical Constriction (AC) in mandibular premolars. Methods: Eight mandibular premolars were divided into two groups, with four samples in each group. Samples were scanned using a …

Epidemiology Of Bruxism And Temporomandibular Joint Disorders (Tmd) In Iranian Adults: A Cross-Sectional Study, Parviz Amini, Maryam Sharifi, Reyhane Aftabi, Fatemeh Jahanimoghadam, Hamidreza Jahanimoghadam

Journal of Dentistry Indonesia

Objective: The prevalence of bruxism in the literature has been reported differently. The aim of this study was to assess the prevalence of bruxism in patients aged 25–40 who were referred to Kerman Dental School. Methods: This analytical descriptive cross-sectional study was performed on 320 patients referred to the Department of Oral Medicine of Kerman Dentistry Faculty in the age range of 25 to 40 years old. The prevalence of bruxism as well as TMJ disorders were evaluated. Data were collected in a questionnaire and entered into SPSS version 24. Analyzing was done by a chi-square test at …

Caries Management For The Modern Era

Journal of the Macomb Dental Society

This month's Meeting lecture reviewed non-restorative versus restorative management of caries based on science, evidence based research and leading expert guidelines with Dr. Margherita Fontana. Dr. Fontana stressed that caries risk assessments done with patients give insights but that should not be the end of the conversation.

Mechanical Behavior Of Premolars With Incomplete Rhizogenesis After Apexification And Revascularization A Finite Element Study, Camila Barbosa, Fernando Faria-Júnior, Gustavo Guerrero, Ana Carolina Silva, Alexandre Borges, Marcia Valera

Annual Research Symposium

The aim of this study was to evaluate the mechanical resistance of premolars with incomplete rhizogenesis using the FEA methodology, comparing apexification methods and regenerative endodontic procedures.

Torsional Evaluation On Different Bending Conditions Of Two Nickel Titanium Rotary Glide Path Files With Different Alloy, Chiara Bramucci

Annual Research Symposium

The aim of the current study is to compare the torsional resistance of two different glidepath files, the Mtwo 10.04 and the Hyflex EDM Glide Path files 10.05, under different bending conditions.

The Use Of Tissue Grafts Associated With Immediate Implant Placement To Achieve Better Peri-Implant Stability And Efficacy: A Systematic Review And Meta-Analysis, Enrico Maria Rondone, Bruno Leitão-Almeida, Miguel Silva Pereira, Gustavo Fernandes, Tiago Borges

MOSDOH Faculty Publications

Background: The goal of this systematic study and meta-analysis was to evaluate the efficacy of hard and/or soft tissue grafts associated with type-1 implants on healing and treatment outcomes. The primary outcomes studied were implant survival rate, pocket depth, marginal periimplant recession, bone loss, bone thickness (volumetric change), interproximal bone level, mesial and distal papilla migration, and radiographic evaluation; and the secondary parameters were Pink Esthetic Score (PES), vertical distance from implant shoulder and bone, Visual Analogue Score (VAS), Implant Stability Quotient (ISQ), and biological complications (fistulas, pain, mucositis, and peri-implantitis). Methods: The PICO strategy was used to formulate the …

Fibroblasts And Osteoblasts Behavior After Contact With Different Titanium Surfaces Used As Implant Abutment: An In Vitro Experimental Study, Jose Henrique Cavalcanti De Lima, Patricia Cristina Matos Robbs, Elena Mavropoulos Oliveira Tude, Piedad N. De Aza, Eleani Maria Da Costa, Antonio Scarano, Juan Carlos Prados-Frutos, Gustavo Fernandes, Sergio Alexandre Gehrke

MOSDOH Faculty Publications

Background: The goal of this in vitro study was to compare three different surfaces: two types of implant surfaces commercially available ([a] smooth/machined and [b] acid-treated surface) versus (c) anodized surface. Discs were manufactured with commercially pure titanium (CP) grade IV, which were subsequently analyzed by scanning microscopy and fibroblastic and osteoblastic cell cultures. Methods: Ninety-nine discs (5 × 2 mm) were manufactured in titanium grade IV and received different surface treatments: (i) Mach group: machined; (ii) AA group: double acid etch; and (iii) AN group: anodizing treatment. Three discs from each group were analyzed by Scanning Electron Microscopy (SEM) …

Effects Of Extraction Versus Non Extraction In Orthodontic Treatment On Buccal Corridor Ratio (Bcr), Emad Hussein, Sari Amer, Mohammad Abu Mowais, Nezar Watted, Stathis Effstathiou

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

Objective: To compare the influence of dental extractions to non-extraction orthodontic treatment on smile fullness and buccal corridor ratio (BCR).

Materials and Methods: 47 subjects from a university archive had pre- and post-treatment standardized extraoral diagnostic clinical photographs, randomly selected and distributed according to having undergone extractions (Group 1, n=24, 22 females and 2 males, mean age =20.5 ±5 years) pre-treatment, (Group 3, n=24, 22 females and 2 males, mean age =20.5 ±5 years) post treatment, or non-extraction (Group 2, n=23, 18 females and 5 males, mean age=20.9 ± 4 years) pre-treatment, (Group 4, n=23, 18 females and 5 males, …

Minimally Invasive Periodontal Regeneration With The Buccal Approach: A Systematic Review And Meta-Analysis Of Clinical Studies, Elisa Pasqualini, Filipe Castro, Denise Curado, Ana Martelete, Artak Heboyan, Muhammad H. Saleh, Juliana Campos Hasse Fernandes, Gustavo Fernandes

MOSDOH Faculty Publications

OBJECTIVE: The aim of this study was to investigate clinical periodontal parameters after treatment using the Minimally Invasive Surgical Technique (MIST), Modified Minimally Invasive Surgical Technique (M-MIST), and/or any technique for papilla preservation, such as Entire Papilla Preservation (EPP), modified-papilla preservation technique (M-PPT), or simplified-papilla preservation technique (SPPT). METHODS: The focus question was “For patients with periodontal intrabony defects (P), what is the best minimally invasive regenerative approach (I), comparing MIST, M-MIST, and papilla preservation techniques’ outcomes (C) to improve PD, CAL, GR, and periodontal stability (O)?” An online search was conducted on PubMed, Cochrane Library, and Embase. Only randomized …

Is The Facial Bone Wall Critical To Achieving Esthetic Outcomes In Immediate Implant Placement With Immediate Restoration? A Systematic Review, Sergio Charifker Ribeiro Martins, Marcio Da Costa Marques, Michael Gomes Vidal, Pedro Henrique Moreira Paulo Tolentino, Roberto Galvão Dinelli, Gustavo Fernandes, Jamil Awad Shibli

MOSDOH Faculty Publications

Background. Rehabilitation in the anterior region requires specific conditions for success, such as the presence of papilla, emergence profile, and balance between pink and white esthetic. Objectives. This systematic review aimed to evaluate the esthetic risk associated with immediate implant placement with immediate restoration in the anterior superior area, where the facial bone plate may be absent or deficient. Materials and methods. The search was done in PubMed, Embase, Cochrane, Lilacs, Scopus, Scielo, and Google Scholar databases. The investigation involved clinical studies and observational studies published between January 2012 and July 2023. Studies were excluded if there was less than …

Critical-Size Defects Reconstruction With Four Different Bone Grafts Associated With E-Ptfe Membrane: A Histomorphometric Experimental In Vivo Study, Gustavo Fernandes, Filipe Castro, Rafael Martins Pereira, Wendel Teixeira, Sergio Gehrke, Julio Cesar Joly, Juan Blanco Carrion, Juliana Campos Hasse Fernandes

MOSDOH Faculty Publications

Objectives: The goal of this study was to assess the newly formed bone and the remnant biomaterial by comparing four different bone grafts used to treat critical-size defects, associated or not with the non-resorbable membrane.

Materials and methods: Two calvaria critical-size bone defects were created in 50 male Wistar rats. They were divided into blood (G1), autogenous (G2), bioglass (G3), hydroxyapatite (G4), and xenograft (G5) groups, associated or not with e-PTFE. The experimental periods were 15 and 45 days. Sections were prepared for histomorphometric assessment. All data were analyzed by the mixed-effects model with multiple comparisons (significance level, p < .05).

Results: …

Comparative Evaluation Of Marginal Adaptation Of Two Sealers With Two Different Obturation Techniques Using Sem (An In Vitro Study), Nada Mohammady Shaheen, Wael Hussein Kamel, Ahmed Abdel Rahman Hashem, Mahmoud Mohamed Badr

Future Dental Journal

Aim: The sealing ability of endodontic obturation plays a important role in long term prognosis of an endodontic treatment. Aim To evaluate and compare the marginal adaptation of epoxy resin-based sealer (AH Plus) versus Bioceramic-based sealer (Total fill BC Sealer) to root canals that obturated with two obturation techniques (Lateral condensation and single cone techniques) using scanning electron microscope (SEM). Materials and Methods Sixty recently extracted single rooted mandibular premolars teeth were disinfected. Access cavity preparation was performed followed by cleaning and shaping, using 2.6% NaOCl as final irrigation protocol. Teeth were then equally divided into 4 groups according to …

Diagnostic Accuracy Of Cbct In The Differential Diagnosis Of Apical Cysts And Granulomas Using Histopathological Findings As A Reference Standard: A Systematic Revew, Fatima Zohra Rouggani, Chaimaa Kabil, Rachida Mayou, Sidi Mohamed . Bouzoubaa

Health Sciences

Introduction

The periapical lesions represent a complex group. Granulomas and cysts represent the two most frequent forms in routine clinical practice.

Aim: Highlight the diagnostic accuracy of CBCT imaging in the differential diagnosis between a cyst and a granuloma compared to histopathological examination as a reference technique.

Materials and Methods:

Our literature search involved articles published in the following databases: PubMed, Cochrane, science direct and Google scholar.

Our intention was to review recent articles from the last 5 years and to select studies conducted in significantly changed socio-medical contexts that could have a positive impact on the validity of our …

Histological Evaluation Of Pulp Response To Pulpine Ne Versus Biodentine As Direct Pulp Capping Materials In A Dog Model, Hagar Bastawy, Maha Ahmed Niazy, Mona Farid, Asmaa Harhash, Mona Aboelwafa, Ashraf Abu-Seida

International Arab Journal of Dentistry

Introduction: The material used for pulp capping has a significant impact on the outcome of vital pulp therapy. This study compared the pulp tissue response to Pulpine NE versus Biodentine as direct pulp capping materials in a dog model.

Methods: Twenty-four teeth in two mongrel dogs (1-2-year-old) were used. In each dog (n=12 teeth), the dental pulps were exposed in 8 teeth (2 experimental groups, 4 teeth each) and left unexposed in 4 teeth (control group, n=4 teeth). A class V cavity was performed on the buccal surface of the selected teeth in the experimental groups. The exposed …

Oral And Dental Health In Systemic Sclerosis: Is It A Window To Other Systemic Affections?, Omnia A Abubakr, Taghreed F M M Mostafa, Mohamed A Hamdy

Journal of Medicine in Scientific Research

Background: Oral and periodontal manifestations are common in systemic sclerosis (SSc) which may result in poor nutritional status and significant morbidity. Better understanding of these manifestations is crucial for better patient outcomes. We aimed to evaluate dental and oral manifestations in patients with SSc in comparison to healthy control and to study the relationship between these findings and systemic sclerosis disease activity index, skin thickness, other systemic affection, as well as the oral health-related quality of life in these patients Patients and Methods: 50 patients with SSc were included in this case-control study (Group A) and 50 apparently healthy controls …

Evaluation Of Post Operative Pain After Obturation Using Two Different Types Of Sealer: A Randomized Clinical Trial, Sara Amin, Mohamed Kataia, Hala Khalil

International Arab Journal of Dentistry

Objective: This study aims to assess the impact of bioceramic and resin based sealers on post endodontic pain after endodontic treatment performed in single visit.

Methods: In this study, forty patients in need of endodontic therapy were chosen. single visit endodontic treatment was done for the patients but obturated using two different types of sealers: in Group 1: AH Plus sealer was used and in Group 2: EndoSequence BC sealer Hiflow was used. Post endodontic pain was measured for 12,24,48 and 72 hours postoperatively.

Results: Both sealer groups’ post-endodontic pain levels did not significantly differ from one …

Synopsis On The Role Of Diode Laser In Root Canal Disinfection, Ashraf Abu-Seida, Mohamed El-Tayeb, Elhassan Hassanein

International Arab Journal of Dentistry

Effective root canal disinfection is necessary for success of endodontic treatment. Traditional chemo-mechanical techniques such as sodium hypochlorite, mechanical preparation and calcium hydroxide used for intracanal disinfection usually fail in cases of biofilm-related infections. Therefore, several new strategies are applied for root canal disinfection. One of these strategies is using of diode laser that has recently gained significant attention in the endodontic practice due to its antibacterial action, bio-stimulation, decrease of pain and improvement of success. Moreover, it has several advantages like its low cost, easily application, penetration power into dentine and smaller size device compared with other types of …

Comparative Study Of Dynamic Cyclic Fatigue Resistance Of Two Files With Different Kinematics, Rahma Abdelshafy, Abeer Mahran, Mahmoud Fahim

International Arab Journal of Dentistry

Objectives: The aim of the study was to determine the dynamic cyclic fatigue resistance (DCFR) of R-motion file and Protaper Next file (PTN) by differential scanning calorimetry (DSC) and scanning electron microscopy (SEM).

Methods: R-motion file (25/.06), PTN file (25/.06) were used and divided into 2 groups (n = 28) according to the file type. DCFR was performed using an artificial canal. Files were allowed to work until separation. The numbers of cycles to failure (NCF) and the time to fracture (TTF) were calculated. The files were subjected to DSC and SEM.

Results: R-motion files had higher …

Aesthetic Rehabilitation Of A Complex Crown-Root Fracture By Fragment Reattachment With A Fiber-Reinforced Post: A Case Report, Sarra Saidi, Meriem Fejjeri, Mahdi Tlili, Sabra Jaafoura, Nadia Frih

International Arab Journal of Dentistry

Complex crown-root fractures are characterized by the involvement of both crown and root with pulp exposure. They pose aesthetic, functional, and psychological problems for the patient. Furthermore, they can pose technical difficulties for the practitioner. The purpose of this case report is to describe the management of a complex crown-root fracture of the right upper central incisor with subgingival limit by reattaching the tooth fragment with fiber-reinforced post. We considered a coronal elongation (gingivectomy and osteoplasty) to recreate the biological space and to expose the limit of the fracture line to guarantee the quality of the bond.

Diagnosis And Endodontic Treatment Of Odontogenic Cutaneous Sinus Tracts: A Report Of Two Cases, Mayada Jemâa, Marwenne Bouatay, Yesmine Neifar, Mohamed Bassem Khattech

International Arab Journal of Dentistry

Introduction: The odontogenic cutaneous sinus tract (OCST), caused by pulp necrosis, creates connections between pathological spaces and anatomical structures. Extraoral manifestations pose diagnostic challenges leading to inappropriate treatments such as multiple surgery and antibiotic therapies. Effective management requires the treatment of dental pathology through endodontic therapy or extraction. This paper presents two cases of OCST and emphasizes the importance of accurate diagnosis and successful non-surgical endodontic treatment.

Observations: Case report 1: A 23-year-old male patient referred by his dermatologist with a cutaneous sinus tract on his chin that had appeared five years ago. During this period, he reported …

Clinical Management Of Mandibular Permanent Premolars With Periapical Lesion And Bilateral Supernumerary Teeth: A 7-Year Follow-Up Case Report, Chiara Pirani, Shehabeldin Saber, Francesco Iacono

International Arab Journal of Dentistry

Objectives: This 7-years follow-up case report describes two diversified strategies for the management of bilateral mandibular permanent premolars associated with periapical lesion and unerupted supernumerary teeth.

Case Report: A non-syndromic 9 years-old Asian female patient presented pain and swelling of the 35 in anatomical contiguity with an immature and unerupted supernumerary tooth. Clinical examination revealed an intraoral vestibular sinus tract related to the necrotic 35. Periapical radiography and CBCT showed that the 35 had an immature apex associated with a periapical lesion, and a supernumerary tooth in a lingual direction. Endodontic treatment of the 35 was performed by creating …

Clinical Significance Of Gutta Percha Variability, Alex R. Pancake

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: The production of gutta percha points as root canal therapy filling materials vary from hand processing to machine processing with a range of acceptable levels of error (tolerance). Similarly, endodontic files manufactured to complement corresponding gutta percha points exhibit specified levels of tolerance. Investigations into the consistency among manufacturers of files and gutta percha points is limited. The aim of this study is to see how variability in apical gauge and taper of gutta percha points affected the clinical performance during cone try in. The null hypothesis of this study is that there is no difference in two gutta …

Dentin-Sealer Bond Strength. A Review: An In-Vitro Comparison Between Guttaflow 2 ®, Endosequence Bc High Flow ®, Tubli-Seal ®, Sealapex ®, And Ah Plus Jet ® Sealers., Zied Diab

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: One objective of non-surgical endodontic therapy is the formation of a hermetic seal with elimination of any portal of entry of bacteria and their byproducts into the root canal space from periapical tissue. Extensive research has been conducted to determine ideal endodontic sealers. Bioceramic sealers have risen to prominence due to reported decreased shrinkage, less toxicity, and superior bond strength to root dentin compared to zinc oxide eugenol, calcium hydroxide, and resin-based sealers. GuttaFlow2®, a new sealer on the market, is composed of calcium silicate in combination with gutta-percha particles. Researchers from Coltene (Altstätten, Switzerland), the manufacturer of GuttaFlow2® …

A Radiographic Analysis Of Teeth With Carrier-Based Obturation Requiring Retreatment, Robert W. Rudnicki

Theses and Dissertations

Objective: The purpose of this study was to determine observer accuracy and agreement in detecting carriers using preoperative radiographs, as well as to identify potential radiographic indicators for the presence of carriers.

Methods: A chart review was conducted for patients seen at the VCU graduate endodontic clinic. Eligible cases included previously treated teeth that were nonsurgically retreated, with and without identified carriers. 100 cases were identified, including 61 carrier and 39 non-carrier cases. Preoperative radiographs were randomized, and evaluators assessed each case for the presence of carrier-based obturation. Evaluators included three endodontists, one general dentist, and four endodontic residents. Statistical …

Characteristics Of Permanent Teeth Diagnosed With Pulpal Necrosis: A Retrospective Study, William Lee

Theses and Dissertations

Objective: To determine associations of pulpally necrotic teeth with demographics, clinical findings, radiographic presentation, and periapical status.

Methods: Virginia Commonwealth University uses AxiUm software to record dental treatment and treatment notes. The current study involves a keyword search using the term “pulpal necrosis”. Factors compiled and evaluated included but not limited to patient demographics, location in the dental arch, clinical findings, radiographic presentation, and periapical status.

Results: Data has revealed that teeth with pulpal necrosis can present with a variety of different clinical findings. All of the following were observations of teeth with pulpal necrosis. A total of 325 teeth …

A Preliminary Report Of A Randomized Controlled Clinical Trial Comparing Ferric Sulfate With Zin Oxide Eugenol And Non-Eugenol Based Material For Pulpotomy In Primary Molar Teeth, Sarah Balal

Theses and Dissertations

Purpose: This study aimed to evaluate the effect of eugenol and non-eugenol-based Zinc Oxide Eugenol (ZOE) cements on primary tooth pulpotomies where Ferric Sulfate (FS) is used as a medicament.

Methods: Children aged 3-7 years with dental caries in their primary molars that have clinical and radiographic diagnosis of reversible pulpitis and undergoing dental treatment under Oral Conscious Sedation (OCS) or General Anesthesia (GA) were recruited. Children were randomly assigned to receive either FS and ZOE (IRM) or FS and non-eugenol based (CAVIT). The outcomes were assessed based on failure rates of the materials separately for clinical or radiographic evidence …

Does Reduced Taper Canal Preparation Increase The Load Capacity Of Endodontically Treated Teeth?, Mostafa M.A. Elkholy, Omar Mahmoud Noureldin, Hala Fayek Khalil, Shehabeldin M. Saber

International Arab Journal of Dentistry

Objectives: The aim of this in-vitro study is to assess and compare the load capacity of teeth with canals prepared using progressive taper versus regressive taper.

Methods: Twenty-seven extracted mandibular molars were categorized into three equal groups. The negative control group involved teeth that were accessed and restored with composite resin without canal preparation. The regressive canal preparation group used the TruNatomy file system, while the progressive canal preparation group employed the ProTaper Gold system. Subsequently, all samples underwent loading using a universal testing machine until tooth fracture occurred. The force required to fracture each tooth was recorded …

A Retrospective Chart Review Of Avulsion Injuries Treated At Virginia Commonwealth University., Ryan Hediger

Theses and Dissertations

A RETROSPECTIVE CHART REVIEW OF AVULSION INJURIES TREATED AT VIRGINIA COMMONWEALTH UNIVERSITY. By: Ryan Hediger, DMD

Objective: Outcomes related to healing following an avulsion injury are multifactorial. However, contemporary literature suggests that tooth survival can be enhanced after such injuries by promptly replanting the tooth and adhering to proper management guidelines. Despite the abundance of resources available, the actions taken immediately after the avulsion injury play a pivotal role in determining the fate of an avulsed tooth. The primary objective of the current investigation is to unveil prognostic factors associated with the survival of avulsed teeth.

Methods: A chart review …

การประเมินการต้านทานการแตกหักในฟันหน้าที่ผ่านการเหนี่ยวนำให้ปลายรากฟันปิดด้วยเอ็มทีเอและได้รับการเสริมความแข็งแรงของคลองรากฟัน: การศึกษาในห้องทดลอง, ธัญพฤฒ อุตมวาทิน

Chulalongkorn University Theses and Dissertations (Chula ETD)

การแตกของรากฟันเป็นความล้มเหลวที่พบได้บ่อยในฟันที่ได้รับการเหนี่ยวนำให้ปลายรากฟันปิดด้วยเอ็มทีเอ งานวิจัยนี้จึงมีวัตถุประสงค์เพื่อศึกษาวัสดุเสริมความแข็งแรงที่เหมาะสมภายหลังการเหนี่ยวนำให้ปลายรากฟันปิดด้วยเอ็มทีเอภายใต้สภาวะจำลองในช่องปาก โดยแบ่งการศึกษาออกเป็น 2 ตอน ตอนที่ 1: เพื่อศึกษาผลของความหนาของเนื้อฟัน ฟันจำนวน 24 ซี่ (n=8) ถูกแบ่งเป็น 3 กลุ่ม ได้แก่ กลุ่มควบคุมที่มีรากฟันสมบูรณ์ กลุ่มที่จำลองให้มีความหนาเนื้อฟัน 2.0 มม. และ 1.5 มม. โดยใช้ Peeso reamer ขยายโพรงรากจนได้ความหนาตามที่กำหนด ตอนที่ 2: เพื่อศึกษาผลของวัสดุเสริมความแข็งแรง รากฟันจำนวน 40 ซี่ถูกเตรียมให้มีลักษณะรากอ่อนแอโดยจำลองความหนาเนื้อฟัน 1.5 มม. และปิดปลายรากด้วยเอ็มทีเอจากนั้นแบ่งเป็น 5 กลุ่ม (n=8) ได้แก่ กลุ่มกัตทาเพอร์ชา, เอ็มทีเอ, เรซินคอมโพสิตชนิดบ่มตัวร่วม, เดือยฟันเสริมเส้นใย และเดือยฟันเสมือนรากฟัน ทุกกลุ่มตัวอย่างผ่านกระบวนการเปลี่ยนอุณหภูมิร้อนเย็นแบบเป็นจังหวะและการลงแรงแบบเป็นวัฏจักร ก่อนทดสอบการรับแรงกดจนแตก บันทึกลักษณะการแตกและแรงสูงสุดก่อนการแตก วิเคราะห์ข้อมูลด้วย one-way ANOVA และ Tukey’s test รวมถึง Weibull regression เพื่อวิเคราะห์ความน่าจะเป็นของการอยู่รอด พบว่ากลุ่มที่มีความหนาเนื้อฟัน 1.5 มม. มีความทนต่อแรงแตกหักต่ำกว่ากลุ่มควบคุมและกลุ่มที่มีความหนา 2.0 มม. อย่างมีนัยสำคัญ พบการแตกของรากในแนวเฉียงในตัวอย่างทั้งหมด สำหรับกลุ่มเดือยฟันเสริมเส้นใย พบการแตกบ่อยที่บริเวณรอยต่อระหว่างเอ็มทีเอกับเดือยฟัน ขณะที่กลุ่มเรซินคอมโพสิตชนิดบ่มตัวร่วมมีค่าความทนต่อแรงแตกหักและความน่าจะเป็นในการอยู่รอดใกล้เคียงกับกลุ่มควบคุมที่มีรากฟันสมบูรณ์ ดังนั้นภายใต้ขอบเขตของการศึกษานี้ พบว่าสามารถใช้เรซินคอมโพสิตแบบบ่มตัวร่วมในการเสริมความแข็งแรงของฟันที่ได้รับการเหนี่ยวนำให้ปลายรากฟันปิดด้วยเอ็มทีเอได้อย่างมีประสิทธิภาพ