Iranian Endodontic Journal

INTRODUCTION: The presented study aimed to characterise periapical disease in teeth with primary non-surgical root canal treatment in persistent or emergent categories and their risk association. METHODS: A retrospective observational study that evaluated permanent teeth with primary non-surgical root canal treatment, was conducted clinically and radiographically for over one year. The following variables were analysed: gender, age, type and location of tooth, previous diagnosis, treatment conditions, and type of coronal restoration...

INTRODUCTION: This study aimed to compare the accuracy and agreement between cone-beam computed tomography (CBCT) and micro-computed tomography (micro-CT) in the assessment of canal transportation and centering ratio following root canal instrumentation with rotary files. MATERIAL AND METHODS: Twenty mesiobuccal canals of mandibular molars were prepared using the 2Shape sequential rotary system. CBCT and micro-CT scans were performed before and after instrumentation, and the magnitude of transportation and centering ratio were measured...

Successful endodontic treatments are contingent upon establishing a hermetic seal within the root canal system. This seal is pivotal in preventing/resolving apical periodontitis. This case report introduces a simplified orthograde apical plug and intra-orifice barrier technique as an effective alternative to previously unsuccessful invasive nonsurgical and surgical treatments. A 28-year-old patient presented with persistent discomfort and localized swelling in the furcation area of the mandibular left first molar...

Pulp canal obliteration (PCO) in calcified teeth presents a challenge for endodontic treatment, especially when accompanied by discoloration. Guided endodontic access (GEA) has emerged as an advanced method for root canal therapy (RCT) in such cases. This case report describes the successful treatment of a calcified maxillary central incisor with discoloration using GEA. A 32-year-old female with a history of dental trauma presented with discoloration in the left maxillary central incisor that did not respond to external bleaching...

Current principles in vital pulp therapy (VPT) modalities emphasise the importance of haemostasis and normal clotting in the achievement of successful treatment outcomes. However, the aforementioned notion could be challenged by the new and recent emerging evidence; suggesting that prolonged or excessive bleeding/haemorrhage (PB) in cases of intensly inflamed pulps, conventionally infamous as irreversible pulpitis (IP), may not impede the healing potential of the remaining dental pulp tissue following VPTs using endodontic biomaterials...

INTRODUCTION: The study aimed to investigate the influence of various factors on the localization of the second mesiobuccal (MB2) canal in maxillary molars, a commonly missed canal during endodontic treatment. MATERIALS AND METHODS: A comprehensive assessment of maxillary molars treated over three years with a dental operative microscope was conducted. Factors such as patient gender, age, tooth type, pulp status, pre-operative cone-beam computed tomography (CBCT), and treatment modality were examined...

No abstract text is available yet for this article.

Over recent decades, the definition of irreversible pulpitis (IP), as an irrevocable condition of a compromised dental pulp tissue, has forced clinicians towards invasive root canal treatments. However, the current best evidence challenges the alignment between clinical symptoms and the perceived irreversibility of a negotiated dental pulp tissue. In the above-mentioned context, vital pulp therapy (VPT) has emerged as a revolutionary and transformative approach; introducing minimally invasive techniques to sustain pulp vitality in cases of IP...

INTRODUCTION: Apical surgery aims to eradicate the apical part of the root and the lesion to enhance the healing. The sealing ability of retrograde filling material is an essential factor affecting the success rate of the surgery. Mineral trioxide aggregate (MTA) is the gold standard of retrograde filling materials, with approved sealing capability and biocompatibility. Newly introduced root repair material with an approved antibacterial effect similar to MTA is Nano-fast cement (NFC) which should be investigated for its sealing ability...

INTRODUCTION: Exposure to pulsed electromagnetic field (PEMF) has been revealed to affect the differentiation and proliferation of human mesenchymal stem cells derived from dental pulp multipotent stromal stem cells (DP-MSCs). This study aimed to investigate the differentiation effect of electromagnetic fields (EMFs) on the DP-MSC. MATERIALS AND METHODS: PEMF was produced by a system comprising a multi-meter autotransformer, solenoid coils, and teslameter. This study included 10 groups of DP-MSCs which underwent different electromagnetic radiation time and beam intensity...

Endodontic treatment of second premolars is challenging due to their complex anatomy and the likelihood of anatomical variations. The current report presents successful treatments of mandibular and maxillary second premolars with different anatomies in a single patient. The first case involved a patient referred from a general practitioner who was unable to complete the root canal treatment of her mandibular second premolar with four root canals. The initial radiograph showed an apical radiolucency, periodontal ligament (PDL) widening, and a fast break suggesting the possibility of root canal branching...

INTRODUCTION: This in vitro study aimed to evaluate the effect of different irrigation regimens on the chemical composition and cleanliness of root canal dentin. MATERIALS AND METHODS: Forty-eight extracted single-rooted permanent human teeth were collected. Root canals were instrumented using step-back technique up to master apical file size 60. Samples were divided into 3 groups ( n =16) based on the type of the irrigant used. The irrigation solutions were 5.25% sodium hypochlorite, 2% chlorhexidine gluconate, and saline solution as a control...

Bioceramic cements used for filling root canals in cases of endo-perio lesion of endodontic origin seem to be promising due to having the potential of promoting faster and more predictable healing of the periapical lesion as they stimulate osteogenesis. An effective treatment plan depends on the precise diagnosis of endo-perio lesions. The origin of an infection, being exclusive to the root canal, from the periodontium, or both, is extremely important for devising the treatment plan. In both cases, no clinical evidence of periodontal disease (bleeding, calculus, etc...

INTRODUCTION: This study aimed to compare the efficacy of ibuprofen, Novafen, mefenamic acid (MA), and celecoxib for pain relief in patients with symptomatic irreversible pulpitis prior to emergency endodontic treatment. MATERIALS AND METHODS: This clinical trial was conducted on 120 patients with moderate to severe pain due to symptomatic irreversible pulpitis seeking emergency endodontic treatment. The patients were randomly divided into 4 groups to receive Novafen, MA, Celecoxib, and ibuprofen...

INTRODUCTION: This study aimed to evaluate if the apical patency can influence the adaptation of the master cone of gutta-percha, quantifying the volume of voids and areas at the last 2 mm of the working length (WL). MATERIALS AND METHODS: Sixty distobuccal canals of extracted upper molars were divided into 3 groups ( n =20) based on the patency length (A: passed 1 mm beyond the apical foramen (AF), B: at the AF and C: 1 mm short of the AF) with the Easy ProDesign Logic 25/0...

Minimally invasive vital pulp therapy (VPT) techniques have become increasingly popular for treating mature permanent teeth with irreversible pulpitis. However, in cases where less invasive VPT approaches, such as miniature pulpotomy, fail to provide symptom relief and desired outcomes, alternative treatment strategies need to be explored. This case report presents the successful application of tampon pulpotomy, a modified full pulpotomy technique, in a vital molar tooth with irreversible pulpitis, after a previous miniature pulpotomy failure...

No abstract text is available yet for this article.

INTRODUCTION: The present study aimed to evaluate the effects of adding chicken eggshell powder (CESP) to calcium-enriched mixture (CEM) cement on its compressive strength (CS), solubility, and setting time. MATERIALS AND METHODS: In this study, CESP was added at weight percentages of 3% and 5% to the powder component of the CEM cement. To measure the CS, a total of 36 samples (height, 6 mm; diameter, 4 mm) were tested in a universal testing machine. The setting time was assessed for 18 disk-shaped samples (diameter, 10 mm; height, 1 mm)...

INTRODUCTION: This randomized clinical trial aimed to determine whether the XP-endo finisher combined with or without foraminal enlargement has any significant effect on the incidence and intensity of postoperative pain in necrotic pulps. MATERIALS AND METHODS: Clinical pain levels were measured after 6, 12, 24, 48, and 72 hours and at 7 postoperative days. All treatments were performed by an endodontist in a single visit. One hundred and twenty patients were included...

Gemination is a rare phenomenon in the maxillary posterior teeth. Endodontic treatment of these teeth requires special care due to the bizarre anatomy particularly when it is accompanied by a C-shaped canal system. This report illustrates a patient with a rare geminated C-shaped maxillary second molar comprised of two sections in its crown, including a geminated section attached to a normal coronal of a second maxillary molar diagnosed with the pulpal status "necrosis" and "irreversible pulpitis" in geminated section and the molar respectively...