Restorative Dentistry & Endodontics

An unusual case of dens invaginatus on a mandibular second molar: a case report: Davide Mancino, Dina Abdellatif, Alfredo Iandolo, Fabien Bornert, Youssef Haïkel; Restor Dent Endod 2025;50(1):e2. Published online January 8, 2025; DOI: https://doi.org/10.5395/rde.2025.50.e2

Abstract PDF PubReader ePub: The present case report describes the endodontic treatment of a type III B dens invaginatus (DI) in a three-rooted mandibular second molar since the invagination invades the root and extends apically. Clinical and cone-beam computed tomography examination of the mandibular second molar showed a broadened coronal morphology, DI, a third root, periapical radiolucency, and compression of a distal root canal by the invagination, which developed an atypical semilunar shape. The tooth was diagnosed with pulpal necrosis, symptomatic apical, and peri-invagination periodontitis. Consequently, three-dimensional virtual reconstruction was conducted to improve anatomical interpretation and case planning and accelerate the intraoperative phase by reducing operator stress and minimizing intraoperative variables. The present case report aims to raise awareness of the existence of DI on the mandibular second molar.

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Predictor factors of 1-rooted mandibular second molars on complicated root and canal anatomies of other mandibular teeth: Hakan Aydın, Hatice Harorlı; Restor Dent Endod 2024;49(1):e2. Published online January 3, 2024; DOI: https://doi.org/10.5395/rde.2024.49.e2

Abstract PDF PubReader ePub: Objectives
This study aimed to determine the effects of 1-rooted mandibular second molar (MnSM) teeth on root canal anatomy complexities of the mandibular central incisor (MnCI), mandibular lateral incisor (MnLI), mandibular canine (MnCn), mandibular first premolar (MnFP), mandibular second premolar (MnSP), and mandibular first molar (MnFM) teeth.
Materials and Methods
Cone-beam computed tomography images of 600 patients with full lower dentition were examined. Individuals with 1-rooted MnSMs were determined, and the complexity of root canal anatomy of other teeth was compared with individuals without 1-rooted MnSMs (Group-1; subjects with at least one 1-rooted MnSM, Group-2; subjects with more than a single root in both MnSMs). A second canal in MnCIs, MnLIs, MnCns, MnFPs, and MnSPs indicated a complicated root canal. The presence of a third root in MnFMs was recorded as complicated.
Results
The prevalence of 1-rooted MnSMs was 12.2%, with the C-shaped root type being the most prevalent (9%). There were fewer complicated root canals in MnCIs (p = 0.02), MnLIs (p < 0.001), and MnFPs (p < 0.001) in Group 1. The other teeth showed no difference between the groups (p > 0.05). According to logistic regression analysis, 1-rooted right MnSMs had a negative effect on having complex canal systems of MnLIs and MnFPs. Left MnSMs were explanatory variables on left MnLIs and both MnFPs.
Conclusions
In individuals with single-rooted MnSMs, a less complicated root canal system was observed in all teeth except the MnFMs.

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Successful nonsurgical treatment of type II dens invaginatus with 5 root canals using a self-adjusting file: a case report: George Táccio de Miranda Candeiro, Antônio Sérgio Teixeira de Menezes, Ana Carolina Saldanha de Oliveira, Flávio Rodrigues Ferreira Alves; Restor Dent Endod 2023;48(2):e17. Published online April 27, 2023; DOI: https://doi.org/10.5395/rde.2023.48.e17

Abstract PDF PubReader ePub: The present report describes the endodontic treatment of an Oehlers type II dens invaginatus in a maxillary lateral incisor with 5 root canals, an extremely rare condition. Apical periodontitis and related symptoms were noted. Cone-beam computed tomography was used to aid the diagnosis, reveal tooth morphology, and assist in canal location. The pulp chamber was carefully accessed, and the root canals were explored under magnification. All root canals were prepared with an R25 Reciproc Blue system and sodium hypochlorite (NaOCl) irrigation. After initial preparation, a self-adjusting file (SAF) with NaOCl and ethylenediaminetetraacetic acid was used to complement the disinfection. Additionally, calcium hydroxide medication was applied. Vertical compaction was used to fill the canals with a calcium silicate-based endodontic sealer and gutta-percha. After 12 months, the patient exhibited healing of the periapical region, absence of symptoms, and normal dental function. In conclusion, this nonsurgical treatment protocol was successful in promoting the cure of apical periodontitis. Both complementary disinfection with an SAF and use of calcium hydroxide medication should be considered when choosing the best treatment approach for dens invaginatus with very complex anatomy.

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Apical periodontitis in mesiobuccal roots of maxillary molars: influence of anatomy and quality of root canal treatment, a CBCT study: Samantha Jannone Carrion, Marcelo Santos Coelho, Adriana de Jesus Soares, Marcos Frozoni; Restor Dent Endod 2022;47(4):e37. Published online September 19, 2022; DOI: https://doi.org/10.5395/rde.2022.47.e37

Abstract PDF PubReader ePub

Objectives

This study aimed to evaluate the prevalence of apical periodontitis (AP) in the mesiobuccal roots of root canal-treated maxillary molars.

Materials and Methods

One thousand cone-beam computed tomography images of the teeth were examined by 2 dental specialists in oral radiology and endodontics. The internal anatomy of the roots, Vertucci’s classification, quality of root canal treatment, and presence of missed canals were evaluated; additionally, the correlation between these variables and AP was ascertained.

Results

A total of 1,000 roots (692 first molars and 308 second molars) encompassing 1,549 canals were assessed, and the quality of the root canal filling in the majority (56.9%) of the canals was satisfactory. AP was observed in 54.4% of the teeth. A mesiolingual canal in the mesiobuccal root (MB2 canal) was observed in 54.9% of the images, and the majority (83.5%) of these canals were not filled. Significant associations were observed between the presence of an MB2 canal and the quality of the root canal filling and the presence of AP.

Conclusions

AP was detected in more than half of the images. The MB2 canals were frequently missed or poorly filled.

Citations

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Anatomical Configuration of the MB2 Canal Using High-Resolution Cone-Beam Computed Tomography
Luciana Magrin Blank-Gonçalves, Emmanuel João Nogueira Leal da Silva, Monikelly do Carmo Chagas Nascimento, Ana Grasiela Limoeiro, Luiz Roberto Coutinho Manhães-Jr
Journal of Endodontics.2025;[Epub] CrossRef
Retrospective study of the morphology of third maxillary molars among the population of Lower Silesia based on analysis of cone beam computed tomography
Anna Olczyk, Barbara Malicka, Katarzyna Skośkiewicz-Malinowska, Mohmed Isaqali Karobari
PLOS ONE.2024; 19(2): e0299123. CrossRef
Relationship between apical periodontitis and missed canals in mesio-buccal roots of maxillary molars: CBCT study
Badi B. Alotaibi, Kiran I. Khan, Muhammad Q. Javed, Smita D. Dutta, Safia S. Shaikh, Nawaf M. Almutairi
Journal of Taibah University Medical Sciences.2024; 19(1): 18. CrossRef
APICAL PERIODONTITIS IN MAXILLARY MOLARS WITH MISSED SECOND MESIO-BUCCAL ROOT CANAL: A CBCT STUDY
Cristina Coralia Nistor, Ioana Suciu , Ecaterina Ionescu , Anca Dragomirescu , Elena Coculescu , Andreea Baluta
Romanian Journal of Oral Rehabilitation.2024; 16(3): 100. CrossRef
Anatomic Comparison of Contralateral Maxillary Second Molars Using High-Resolution Micro-CT
Ghassan Dandache, Umut Aksoy, Mehmet Birol Ozel, Kaan Orhan
Symmetry.2023; 15(2): 420. CrossRef

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Morphological characteristics of the mesiobuccal root in the presence of a second mesiobuccal canal: a micro-CT study: Lucas P. Lopes Rosado, Matheus Lima Oliveira, Karla Rovaris, Deborah Queiroz Freitas, Frederico Sampaio Neves; Restor Dent Endod 2022;47(1):e6. Published online January 18, 2022; DOI: https://doi.org/10.5395/rde.2022.47.e6

Abstract PDF PubReader ePub

Objectives

This study investigated the internal morphology of mesiobuccal (MB) roots of maxillary molars with a second mesiobuccal (MB2) canal.

Materials and Methods

Forty-seven maxillary first or second molars from Brazilians were scanned using micro-computed tomography. The following measurements were obtained from the MB roots: root thickness, root width, and dentin thickness of the buccal aspect of the first mesiobuccal (MB1) canal, between the MB1 and MB2 canals, and the palatal aspect of the MB2 and MB1 canals at 3 mm from the root apex and in the furcation region. For statistical analysis, the Student’s t-test and analysis of variance with the post-hoc Tukey test were used (α = 0.05).

Results

In maxillary molars with an MB2 canal, MB roots were significantly thicker (p = 0.0014) and narrower (p = 0.0016) than in maxillary molars without an MB2 canal. The dentin thickness of the palatal aspect of the MB1 canal was also significantly greater than that of MB roots without an MB2 canal at 3 mm from the root apex (p = 0.0007) and in the furcation region (p < 0.0001). In the furcation region of maxillary molars with an MB2 canal, the dentin thickness between the MB1 and MB2 canals was significantly smaller than that in the buccal and palatal aspects (p < 0.0001).

Conclusions

The internal morphology of MB roots of maxillary molars with an MB2 canal revealed differences in dentin thickness, root diameter, and distance between the canals when compared with maxillary molars without an MB2 canal.

Citations

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Effectiveness and safety of three NiTi systems in endodontic retreatment of MB1 and MB2 root canals: a micro-CT and CBCT combined analysis
Airton Oliveira Santos-Junior, Rocharles Cavalcante Fontenele, Karina Ines Medina Carita Tavares, Fernanda Ferrari Esteves Torres, Jáder Camilo Pinto, Pedro Luis Busto Rosim, Andréa Gonçalves, Marco Antonio Hungaro Duarte, Juliane Maria Guerreiro-Tanomaru
Clinical Oral Investigations.2025;[Epub] CrossRef
Can maxillary molar dimensions predict the presence of the second mesiobuccal canal?
Lucas P. Lopes Rosado, Deborah Queiroz Freitas, Karla Rovaris, Matheus L. Oliveira, Frederico Sampaio Neves
Oral Radiology.2023; 39(3): 482. CrossRef
Can the detection of second mesiobuccal canals be enhanced based on the volume of adjacent canals?
Lucas P. Lopes Rosado, Deborah Q. Freitas, Karla Rovaris, Matheus L. Oliveira, Frederico S. Neves
Archives of Oral Biology.2023; 146: 105604. CrossRef
Assessment of the coronal root canal morphology of permanent maxillary first molars using digital 3D-reconstruction technology based on micro-computed tomography data
Mudan Wang, Yuxuan Gao, Qi Deng, Yuan Gao, Dongzhe Song, Dingming Huang
Journal of Dental Sciences.2023; 18(2): 586. CrossRef

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Shape and anatomical relationship of the mental foramen to the mandibular premolars in an Indian sub-population: a retrospective CBCT analysis: Komal Sheth, Kulvinder Singh Banga, Ajinkya M. Pawar, James L. Gutmann, Hyeon-Cheol Kim; Restor Dent Endod 2022;47(1):e1. Published online December 13, 2021; DOI: https://doi.org/10.5395/rde.2022.47.e1

Abstract PDF PubReader ePub

Objectives

This study assessed the shape and anatomical relationship of the mental foramen (MF) to mandibular posterior teeth in an Indian sub-population.

Materials and Methods

In total, 475 existing cone-beam computed tomography records exhibiting 950 MFs and including the bilateral presence of mandibular premolars and first molars were assessed. Images were evaluated 3-dimensionally to ascertain the position, shape, and anatomical proximity of MFs to mandibular teeth. The position and shape of MFs were measured and calculated. The Pythagorean theorem was used to calculate the distance between the root apex of the mandibular teeth and the MF.

Results

MFs exhibited a predominantly round shape (left: 67% and right: 65%) followed by oval (left: 30% and right: 31%) in both males and females and in different age groups. The root apices of mandibular second premolars (left: 71% and right: 62%) were closest to the MF, followed by distal to the first premolars and mesial to the second premolars. The mean vertical distance between the MF and the nearest tooth apex calculated on sagittal sections was 2.20 mm on the right side and 2.32 mm on the left side; no significant difference was found according to sex or age. The distance between the apices of the teeth and the MF was ≥ 4 mm (left; 4.09 ± 1.27 mm and right; 4.01 ± 1.15 mm).

Conclusions

These findings highlight the need for clinicians to be aware of the location of the MF in treatment planning and while performing non-surgical and surgical endodontic procedures.

Citations

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Optimising Treatment Strategies: Labial versus Labio-inferior Plating Using Three-dimensional Miniplates for Mandibular Symphysis and Parasymphysis Fractures
Akash P Muralidharan, Kalyani Bhate, K Mithun Nilgiri, Sumithra S Nair, Lakshmi Shetty, Rose Johnson
Advances in Human Biology.2025;[Epub] CrossRef
Radiographic Recognition of Mental Nerve for Secured Dental Implant Placement by Cone-Beam Computed Tomography in Mosul City Population
Asmaa B. Al-Saffar, Mekdad H. Alrigbo, Rawaa Y. Al-Rawee
Journal of Craniofacial Surgery.2024; 35(7): 2049. CrossRef
Accuracy of Implant Size Prediction Based on Edentulous Ridge Dimension on Cone-beam Computed Tomography - A Retrospective Study
Hunter R. Jolicoeur, Gerard A. Camargo, Tamara G. Stephenson, Wenjian Zhang
Annals of Maxillofacial Surgery.2024; 14(2): 187. CrossRef
Mental Foramenin Panoramik Radyografi ve Konik Işınlı Bilgisayarlı Tomografi Görüntüleri Üzerinde Morfolojik Analizi
Ezgi UZUN, Burak Kerem APAYDIN, Ayşen TİL
Selcuk Dental Journal.2023; 10(3): 540. CrossRef
Evaluation of the Possible Relationship between the Curvature and Horizontal Course of the Inferior Alveolar Canal
Cansu G. Koca, M. Fatih Çiçek, Sanaz Sadry, Ozan Yenidünya, Fatma Akkoca Kaplan, Aras Erdil
Current Medical Imaging Formerly Current Medical Imaging Reviews.2023;[Epub] CrossRef

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Enhanced visualization of the root canal morphology using a chitosan-based endo-radiopaque solution: Shashirekha Govind, Amit Jena, Satabdi Pattanaik, Mahaprasad Anarasi, Satyajit Mohapatra, Vinay Shivagange; Restor Dent Endod 2021;46(3):e33. Published online June 4, 2021; DOI: https://doi.org/10.5395/rde.2021.46.e33

Abstract PDF PubReader ePub

Objectives

This study aimed to investigate the efficacy of ionic and non-ionic-based contrast media (in vitro study) and the combinatorial effect of chitosan-based endo-radiopaque solution (CERS) (in vivo study) for visualization of the root canal anatomy.

Materials and Methods

In vitro study (120 teeth): The root canal of maxillary premolars and molars (in vitro group 1 and 2 respectively, n = 60 each) were analyzed using 4 different contrast media (subgroups: Omnipaque 350, Iopamidol, Xenetix 350, and Urografin 76; n = 15 each) in combination with 5.25% sodium hypochlorite (NaOCl). Based on the results of the in vitro study, in vivo study (80 teeth) was done to compare Xenetix 350 + 5.25% NaOCl with CERS (in vivo group 1 and 2 respectively, n = 40 each) on maxillary and mandibular premolars and molars. Two endodontists used radiovisiography to assess the depth of ingress and identify the aberrant root anatomy after access cavity preparation, and after initial cleaning and shaping of canals. Kruskal-Wallis test was used for in vitro comparison (p < 0.05), and Wilcoxon signed-rank test and Mann-Whitney U test for in vivo analysis (p < 0.01).

Results

In vitro study, Xenetix 350 + 5.25% NaOCl facilitated a significant higher visualization (p < 0.05). For in vivo study, CERS had a statistically significant depth of ingress (p < 0.01), and was efficient in identifying the aberrant root canal anatomy of premolars and molars.

Conclusions

CERS facilitates better visualization of the root canal anatomy of human premolars and molars.

Citations

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Efficacy of sonic and ultrasonic activation on irrigant penetration in different tapered preparations: An in vitro study
M. Rama Sowmya, Kavalipurapu Venkata Teja, Pradeep Solete, Sahil Choudhari, S Delphine Priscilla Antony, Mohammed Mustafa
Endodontology.2024; 36(4): 370. CrossRef
Analysis of the value of visualized root canal technique in the clinical treatment of endodontics
Nana SUN, Nannan WANG, Xin QIAN
Panminerva Medica.2023;[Epub] CrossRef

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Isthmuses, accessory canals, and the direction of root curvature in permanent mandibular first molars: an in vivo computed tomography study: Aria Chuppani Dastgerdi, Manizheh Navabi, Vahid Rakhshan; Restor Dent Endod 2020;45(1):e7. Published online December 12, 2019; DOI: https://doi.org/10.5395/rde.2020.45.e7

Abstract PDF PubReader ePub

Objectives

This study was performed to assess the anatomy of mandibular first molars.

Materials and Methods

In this in vivo study, cone-beam computed tomography (CBCT) volumes of 312 bilateral intact first mandibular molars from 156 patients (79 men and 77 women; average age, 35.6 ± 11.2 years) were investigated in terms of the direction of each canal's curvature in the buccolingual and mesiodistal dimensions (direction of the position of the apex in relation to the longitudinal axis of the root), the presence of an isthmus (a narrow, ribbon-shaped communication between 2 root canals) in 3 segments (0–2, 2–4, and 4–6 mm) from the apex), and the presence and number of accessory canals (smaller canals besides the main root canals, connecting the pulp to the periodontium). Data were analyzed statistically (α = 0.05).

Results

Mesiolingual canals were mostly buccally and distally inclined, while mesiobuccal and distolingual canals were mostly distally curved. Isthmuses were more common in younger patients (χ² test, p < 0.05). The average numbers of accessory canals in the apical, middle, and coronal segments were 9.9 ± 4.2, 6.9 ± 2.9, and 9.3 ± 3.0 canals per segment, respectively (analysis of variance, p < 0.001). Age and sex were not associated with the number of accessory canals (p > 0.05).

Conclusions

The complex anatomy of these teeth deserves attention during non-surgical or surgical endodontic treatment. Around the apex, isthmuses might be more prevalent in younger and female individuals.

Citations

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Micro-CT and histological examination of accessory canals in 34 equine cheek teeth
Szabolcs A. Korsós, Carsten Staszyk, Matthieu Boone, Iván Josipovic, Jörg Vogelsberg, Lieven Vlaminck
Frontiers in Veterinary Science.2024;[Epub] CrossRef
Diagnostic value of cone beam computed tomography for root canal morphology assessment – a micro-CT based comparison
Mariana Pires, Jorge N.R. Martins, Mário Rito Pereira, Isabel Vasconcelos, Rui Pereira da Costa, Isabel Duarte, António Ginjeira
Clinical Oral Investigations.2024;[Epub] CrossRef
Exploring age and gender variations in root canal morphology of maxillary premolars in Saudi sub population: a cross-sectional CBCT study
Mohmed Isaqali Karobari, Azhar Iqbal, Rumesa Batul, Abdul Habeeb Adil, Jamaluddin Syed, Hmoud Ali Algarni, Meshal Aber Alonazi, Tahir Yusuf Noorani
BMC Oral Health.2024;[Epub] CrossRef
Comprehensive analysis of root canal morphology in maxillary premolars among the Pakistani subpopulation: a CBCT-based study
Hmoud Ali Algarni, Meshal Aber Alonazi, Hamza Arshad, Fatima Zahra, Fahad Umer, Irfan Maqbool, Azhar Iqbal, Mohmed Isaqali Karobari
European Journal of Medical Research.2024;[Epub] CrossRef
The efficacy of a novel SWEEPS laser-activated irrigation compared to ultrasonic activation in the removal of pulp tissue from an isthmus area in the apical third of the root canal
Ivona Bago, Adriana Đurin, Debora Kanižaj, Lovorka Batelja Vuletić, Ivana Vidović Zdrilić, Ivica Anić
Lasers in Medical Science.2023;[Epub] CrossRef
Effect of passive ultrasonic irrigation on hard tissue debris removal: a systematic review and meta-analysis
Ana Flávia Almeida Barbosa, Carolina Oliveira de Lima, Luciana Moura Sassone, Raissa Dias Fares, Tatiana Kelly da Silva Fidalgo, Emmanuel João Nogueira Leal Silva
Brazilian Oral Research.2021;[Epub] CrossRef

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Fused roots of maxillary molars: characterization and prevalence in a Latin American sub-population: a cone beam computed tomography study: Maytté Marcano-Caldera, Jose Luis Mejia-Cardona, María del Pilar Blanco-Uribe, Elena Carolina Chaverra-Mesa, Didier Rodríguez-Lezama, Jose Hernán Parra-Sánchez; Restor Dent Endod 2019;44(2):e16. Published online April 22, 2019; DOI: https://doi.org/10.5395/rde.2019.44.e16

Abstract PDF PubReader ePub

Objectives

The upper molars generally have three roots; therefore, different combinations of fusion can occur, increasing the possibility of finding more complex root canal systems. The purpose of this study was to evaluate the prevalence and characterization of fused roots in first and second maxillary molars using cone-beam computed tomography (CBCT) in a Colombian population.

Materials and Methods

A total of 1274 teeth were evaluated, of which 534 were maxillary first molars and 740 were maxillary second molars. Axial sections were made at the cervical, middle, and apical levels to determine the prevalence of root fusion and the types of fusion.

Results

Overall, 43% of the molars (n = 551) presented some type of fused root. Root fusion was present in 23.4% of the maxillary first molars. The most frequent type of fused root was type 3 (distobuccal-palatal; DB-P) (58.9%). Root fusion was observed in 57.6% of the maxillary second molars, and the most prevalent type of fused root was type 6 (cone-shaped) (45.2%). Of the maxillary molars, 12.5% were classified as C-shaped.

Conclusion

Within the limitations of this study, there was a high prevalence of fused roots in maxillary molars in the Colombian population, mainly in the maxillary second molars. In first molars, the most common type of fused root was type 3 (DB-P) and in second molars, the most common type was type 6 (cone-shaped). Additionally, molars with root fusion presented variation at different levels of the radicular portion, with implications for treatment quality.

Citations

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Exploring the sex-associated differences in molars fused roots
Maria Eduarda Nunis Locks, Erika Calvano Küchler, Leonardo Santos Antunes, Alice Corrêa Silva-Sousa, Natanael Henrique Ribeiro Mattos, Camila Paiva Perin, Paulo Henrique Condeixa França, Peter Proff, Christian Kirschneck, Flares Baratto-Filho
Annals of Anatomy - Anatomischer Anzeiger.2024; 254: 152245. CrossRef
Cone beam computed tomography analysis of the root and canal morphology of the maxillary second molars in a Syrian subpopulation
Safaa Allawi, Mouhammad Al-Tayyan, Hassan Achour, Eyad Al-Toutangy, Yasser Alsayed Tolibah
BMC Oral Health.2024;[Epub] CrossRef
Prevalence of root fusion in canine maxillary second molar teeth using cone-beam computed tomography
Kristin Linder, Scott MacGee, Loren Schultz
Frontiers in Veterinary Science.2023;[Epub] CrossRef
Dentine thickness in maxillary fused molars depends on the fusion type: An ex vivo micro‐computed tomography study
Cangül Keskin, Defne Toplu, Ali Keleş
International Endodontic Journal.2023; 56(5): 637. CrossRef
Root and canal-specific features of maxillary first molars with fused roots
Katarina Beljic-Ivanovic, Branislav Karadzic
Vojnosanitetski pregled.2022; 79(11): 1092. CrossRef
Micro-CT Analysis of the Root Canal Configuration of Maxillary Second Molars with Fusion
Cangül KESKİN, Özgür ÖZDEMİR, Ali KELEŞ
European Annals of Dental Sciences.2022; 49(Suppl 1): 25. CrossRef
Assessment of C-Shaped Canal Morphology in Mandibular and Maxillary Second Molars in an Iraqi Subpopulation Using Cone-Beam Computed Tomography
Kazhan Abdalrahman, Ranjdar Talabani, Sara Kazzaz, Dlsoz Babarasul, Berndt Koslowski
Scanning.2022; 2022: 1. CrossRef
Analysis of Root and Canal Morphology of Fused and Separate Rooted Maxillary Molar Teeth in Turkish Population
H Aydin
Nigerian Journal of Clinical Practice.2021; 24(3): 435. CrossRef
Investigating prevalence of dental anomalies in Eastern Province of Saudi Arabia through digital orthopantomogram
Jehan ALHumaid, Maryam Buholayka, Arishiya Thapasum, Muhanad Alhareky, Maha Abdelsalam, Amr Bughsan
Saudi Journal of Biological Sciences.2021; 28(5): 2900. CrossRef
Preferred Reporting Items for Epidemiologic Cross-sectional Studies on Root and Root Canal Anatomy Using Cone-beam Computed Tomographic Technology: A Systematized Assessment
Jorge N.R. Martins, Anil Kishen, Duarte Marques, Emmanuel João Nogueira Leal Silva, João Caramês, António Mata, Marco A. Versiani
Journal of Endodontics.2020; 46(7): 915. CrossRef
Second mesiobuccal root canal in maxillary molars—A systematic review and meta-analysis of prevalence studies using cone beam computed tomography
Jorge N.R. Martins, Duarte Marques, Emmanuel João Nogueira Leal Silva, João Caramês, António Mata, Marco A. Versiani
Archives of Oral Biology.2020; 113: 104589. CrossRef

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Maxillary first molar with 7 root canals diagnosed using cone-beam computed tomography: Evaldo Rodrigues, Antônio Henrique Braitt, Bruno Ferraz Galvão, Emmanuel João Nogueira Leal da Silva; Restor Dent Endod 2017;42(1):60-64. Published online August 29, 2016; DOI: https://doi.org/10.5395/rde.2017.42.1.60

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Root canal anatomy is complex, and the recognition of anatomic variations could be a challenge for clinicians. This case report describes the importance of cone beam computed tomographyic (CBCT) imaging during endodontic treatment. A 23 year old woman was referred by her general dental practitioner with the chief complaint of spontaneous pain in her right posterior maxilla. From the clinical and radiographic findings, a diagnosis of symptomatic irreversible pulpitis was made and endodontic treatment was suggested to the patient. The patient underwent CBCT examination, and CBCT scan slices revealed seven canals: three mesiobuccal (MB1, MB2, and MB3), two distobuccal (DB1 and DB2), and two palatal (P1 and P2). Canals were successfully treated with reciprocating files and filled using single-cone filling technique. Precise knowledge of root canal morphology and its variation is important during root canal treatment. CBCT examination is an excellent tool for identifying and managing these complex root canal systems.

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KONİK IŞINLI BİLGİSAYARLI TOMOGRAFİ İLE DOĞRULANMIŞ OLAĞANDIŞI ÜST BİRİNCİ BÜYÜK AZI DİŞİN ENDODONTİK TEDAVİSİ
Didem Seda Gültekin, Funda Kont Çobankara
Journal of International Dental Sciences.2025; 11(1): 46. CrossRef
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Reetu Shrestha
International Journal of Innovative Science and Research Technology (IJISRT).2024; : 1330. CrossRef
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Saini Rashmi, Saini V. Kumar
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Gabriel Magnucki, Sven V. K. Mietling, Sreekanth Kumar Mallineni
International Journal of Dentistry.2021; 2021: 1. CrossRef
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Chengshi Wei, Keyi Li, Lili Shen, Guangliang Bai, Xiufen Tian
The Journal of the American Dental Association.2021; 152(12): 1044. CrossRef
Diversity of root canal morphology of maxillary first molars
Juhász Kincső-Réka, Kovács Mónika, Pop Mihai, Pop Silvia, Kerekes-Máthé Bernadette
Bulletin of Medical Sciences.2021; 94(1): 63. CrossRef
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Ravindranath Megha, Venkatachalam Prakash
World Journal of Dentistry.2021; 12(1): 89. CrossRef
Endodontic management of the maxillary first molar with special root canals: A case report and review of the literature
Zhi-Hui Zhang, Hai-Lin Yao, Yan Zhang, Xiao Wang
World Journal of Clinical Cases.2020; 8(12): 2590. CrossRef
Management of a permanent maxillary first molar with unusual crown and root anatomy: a case report
Prateeksha Chowdhry, Pallavi Reddy, Mamta Kaushik
Restorative Dentistry & Endodontics.2018;[Epub] CrossRef
Usefulness of cone beam computed tomography in perplexing endodontic cases
Amandeep Kaur, Ajay Logani
Endodontology.2018; 30(2): 187. CrossRef
Endodontic management of a maxillary first molar with seven root canal systems evaluated using cone-beam computed tomography scanning
VijayReddy Venumuddala, Sridhar Moturi, SV Satish, BKalyan Chakravarthy, Sudhakar Malapati
Journal of International Society of Preventive and Community Dentistry.2017; 7(5): 297. CrossRef

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Working width, a deserted aspect of Endodontics: Denzil Albuquerque, Jojo Kottoor; Restor Dent Endod 2015;40(4):334-335. Published online September 23, 2015; DOI: https://doi.org/10.5395/rde.2015.40.4.334

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Effect of Coronal Flaring on Initial Apical File Size Estimation in Curved Canals Using Three Distinct Rotary Instruments: A Comparative In Vitro Study
Vinodhini Varatharajan, Muhammed Abdul Rahman Thazhathveedan, Mohammed Salman Kuttikkodan, Ismail Puzhangaraillath Mundanatayil, Amrutha Ravindran Thazhe Mangool, Ashraf Karumbil
Cureus.2024;[Epub] CrossRef
How much to enlarge? A letter to the editor
Krishnamachari Janani, Kavalipurapu Venkata Teja, Kumar Chandan Srivatsava
Saudi Endodontic Journal.2023; 13(3): 288. CrossRef

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Endodontic treatment of a mandibular first molar with 8 canals: a case report: Ankit Arora, Shashi Rashmi Acharya, Padmaja Sharma; Restor Dent Endod 2015;40(1):75-78. Published online October 13, 2014; DOI: https://doi.org/10.5395/rde.2015.40.1.75

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Presented here is a case where 8 canals were located in a mandibular first molar. A patient with continuing pain in mandibular left first molar even after completion of biomechanical preparation was referred by a dentist. Following basic laws of the pulp chamber floor anatomy, 8 canals were located in three steps with 4 canals in each root. In both of the roots, 4 separate canals commenced which joined into two canals and exited as two separate foramina. At 6 mon follow-up visit, the tooth was found to be asymptomatic and revealed normal radiographic periapical area. The case stresses on the fact that understanding the laws of pulp chamber anatomy and complying with them while attempting to locate additional canals can prevent missing canals.

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How Do Different Image Modules Impact the Accuracy of Working Length Measurements in Digital Periapical Radiography? An In Vitro Study
Vahide Hazal Abat, Rabia Figen Kaptan
Diagnostics.2025; 15(3): 305. CrossRef
Determinants of the Number of Main Canals in a Tooth: Deciphering Potential Mechanisms
Andrea Alejandra Moreno Robalino, José Luis Álvarez Vásquez
Universitas Odontologica.2023;[Epub] CrossRef
Application Of Cone-Beam Computed Tomography In Diagnosis And Treatment Of Multiple Canals– A Case Report
Gyanendra Pratap Singh, Shruthi H Attavar, Sivaji Kavuri
Annals of Dental Specialty.2022; 10(2): 15. CrossRef
Four distal root canals in a two-rooted permanent mandibular first molar
Urvashi M. Ujariya, Foram H. Patel, Rajendra P. Bharatiya, Anjali K. Kothari
Endodontology.2022; 34(3): 212. CrossRef

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Surgical endodontic management of infected lateral canals of maxillary incisors: Ji-Hyun Jang, Jung-Min Lee, Jin-Kyu Yi, Sung-Baik Choi, Sang-Hyuk Park; Restor Dent Endod 2015;40(1):79-84. Published online October 10, 2014; DOI: https://doi.org/10.5395/rde.2015.40.1.79

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This case report presents surgical endodontic management outcomes of maxillary incisors that were infected via the lateral canals. Two cases are presented in which endodontically-treated maxillary central incisors had sustained lateral canal infections. A surgical endodontic treatment was performed on both teeth. Flap elevation revealed vertical bone destruction along the root surface and infected lateral canals, and microscopy revealed that the lateral canals were the origin of the lesions. After the infected lateral canals were surgically managed, both teeth were asymptomatic and labial fistulas were resolved. There were no clinical or radiographic signs of surgical endodontic management failure at follow-up visits. This case report highlights the clinical significance and surgical endodontic management of infected lateral canal of maxillary incisor. It is important to be aware of root canal anatomy variability in maxillary incisors. Maxillary central incisors infected via the lateral canal can be successfully managed by surgical endodontic treatment.

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Expert consensus on difficulty assessment of endodontic therapy
Dingming Huang, Xiaoyan Wang, Jingping Liang, Junqi Ling, Zhuan Bian, Qing Yu, Benxiang Hou, Xinmei Chen, Jiyao Li, Ling Ye, Lei Cheng, Xin Xu, Tao Hu, Hongkun Wu, Bin Guo, Qin Su, Zhi Chen, Lihong Qiu, Wenxia Chen, Xi Wei, Zhengwei Huang, Jinhua Yu, Zhen
International Journal of Oral Science.2024;[Epub] CrossRef
Surgical endodontic treatment of maxillary incisors: Case report
Moazzy I. Almansour
Clinical Case Reports.2023;[Epub] CrossRef
Resective and Regenerative Approach for an Unresolved Periapical Lesion: A Surgical Case Report With 24-Month Follow-Up
Anchu R Thomas, Melwin Mathew, Sunil K Nettemu, Anoop Mayya
Cureus.2023;[Epub] CrossRef
An in vitro endodontic model to quantify the accessory canal filling potential of the vertical and lateral condensation techniques
Thomas Gerhard Wolf, Louisa Willems, Benjamín Briseño‐Marroquín
Australian Endodontic Journal.2021; 47(2): 245. CrossRef
Application of a new system for classifying root and canal anatomy in studies involving micro‐computed tomography and cone beam computed tomography: Explanation and elaboration
H. M. A. Ahmed, N. Ibrahim, N. S. Mohamad, P. Nambiar, R. F. Muhammad, M. Yusoff, P. M. H. Dummer
International Endodontic Journal.2021; 54(7): 1056. CrossRef
German Dentists’ Preferences for the Treatment of Apical Periodontitis: A Cross-Sectional Survey
Jonas Conrad, Jan Retelsdorf, Sameh Attia, Christof Dörfer, Mohamed Mekhemar
International Journal of Environmental Research and Public Health.2020; 17(20): 7447. CrossRef
Surgical management of an accessory canal in a maxillary premolar: a case report
Hee-Jin Kim, Mi-Kyung Yu, Kwang-Won Lee, Kyung-San Min
Restorative Dentistry & Endodontics.2019;[Epub] CrossRef
A new system for classifying accessory canal morphology
H. M. A. Ahmed, P. Neelakantan, P. M. H. Dummer
International Endodontic Journal.2018; 51(2): 164. CrossRef
Effects of antimicrobial photodynamic therapy and surgical endodontic treatment on the bacterial load reduction and periapical lesion healing. Three years follow up
Aguinaldo S. Garcez, Julio G. Arantes-Neto, Debora P. Sellera, Eduardo Rodrigues Fregnani
Photodiagnosis and Photodynamic Therapy.2015; 12(4): 575. CrossRef

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Root canal treatment of a mandibular second premolar with three separate root canals: Seok-Ryun Lee, Seol-Hee Shin, Sung-Ok Hong, Chang-Kyu Song, Hoon-Sang Chang, Kyung-San Min; J Korean Acad Conserv Dent 2010;35(4):302-305. Published online July 31, 2010; DOI: https://doi.org/10.5395/JKACD.2010.35.4.302

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Mandibular premolars show a wide variety of root canal anatomy. Especially, the occurrence of three canals with three separate foramina in mandibular second premolars is very rare. This case report describes the root canal treatment of an unusual morphological configuration of the root canal system and supplements previous reports of the existence of such configuration in mandibular second premolar.

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Effective management of mandibular second premolar with root anomalies
Ashwaq Faia Asiri
Saudi Endodontic Journal.2023; 13(1): 28. CrossRef

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1 Download
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