Restorative Dentistry & Endodontics

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

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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Endodontic treatment of a C-shaped mandibular second premolar with four root canals and three apical foramina: a case report: Thikamphaa Bertrand, Sahng Gyoon Kim; Restor Dent Endod 2016;41(1):68-73. Published online January 19, 2016; DOI: https://doi.org/10.5395/rde.2016.41.1.68

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This case report describes a unique C-shaped mandibular second premolar with four canals and three apical foramina and its endodontic management with the aid of cone-beam computer tomography (CBCT). C-shaped root canal morphology with four canals was identified under a dental operating microscope. A CBCT scan was taken to evaluate the aberrant root canal anatomy and devise a better instrumentation strategy based on the anatomy. All canals were instrumented to have a 0.05 taper using 1.0 mm step-back filing with appropriate apical sizes determined from the CBCT scan images and filled using a warm vertical compaction technique. A C-shaped mandibular second premolar with multiple canals is an anatomically rare case for clinicians, yet its endodontic treatment may require a careful instrumentation strategy due to the difficulty in disinfecting the canals in the thin root area without compromising the root structure.

Citations

Citations to this article as recorded by

Unique root anatomy of mandibular second premolars: clinical strategies for effective disinfection and preservation of dentine structure in root canal treatment—a case report
Ji Wook Jeong, Erika Silguero Gonzalez, Scott R. Makins, Timothy Kirkpatrick
Frontiers in Dental Medicine.2024;[Epub] CrossRef
PRICE 2020 guidelines for reporting case reports in Endodontics: explanation and elaboration
V. Nagendrababu, B. S. Chong, P. McCabe, P. K. Shah, E. Priya, J. Jayaraman, S. J. Pulikkotil, P. M. H. Dummer
International Endodontic Journal.2020; 53(7): 922. CrossRef
A cone-beam computed tomography study of C-shaped root canal systems in mandibular second premolars in a Taiwan Chinese subpopulation
Yi-Chin Chen, Chia-Lun Tsai, Yi-Chen Chen, Gin Chen, Shue-Fen Yang
Journal of the Formosan Medical Association.2018; 117(12): 1086. CrossRef
Anatomic Comparison of Contralateral Premolars
Gaute Floer Johnsen, Sazan Dara, Sameenah Asjad, Pia Titterud Sunde, Håvard Jostein Haugen
Journal of Endodontics.2017; 43(6): 956. CrossRef
Endodontic Management of Dilacerated Maxillary Central Incisor fused to a Supernumerary Tooth using Cone Beam Computed Tomography: An Unusual Clinical Presentation
Thilla S Vinothkumar, Deivanayagam Kandaswamy, Ganesh Arathi, Sathishkumar Ramkumar, Gnanasekaran Felsypremila
The Journal of Contemporary Dental Practice.2017; 18(6): 522. CrossRef

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Use of cone-beam computed tomography and three-dimensional modeling for assessment of anomalous pulp canal configuration: a case report: Alper Sinanoglu, Dilek Helvacioglu-Yigit, Ibrahim Mutlu; Restor Dent Endod 2015;40(2):161-165. Published online December 4, 2014; DOI: https://doi.org/10.5395/rde.2015.40.2.161

Abstract PDF PubReader ePub

Three-dimensional (3D) reconstruction of cone-beam computed tomography (CBCT) scans appears to be a valuable method for assessing pulp canal configuration. The aim of this report is to describe endodontic treatment of a mandibular second premolar with aberrant pulp canal morphology detected by CBCT and confirmed by 3D modeling. An accessory canal was suspected during endodontic treatment of the mandibular left second premolar in a 21 year old woman with a chief complaint of pulsating pain. Axial cross-sectional CBCT scans revealed that the pulp canal divided into mesiobuccal, lingual, and buccal canals in the middle third and ended as four separate foramina. 3D modeling confirmed the anomalous configuration of the fused root with a deep lingual groove. Endodontic treatment of the tooth was completed in two appointments. The root canals were obturated using lateral compaction of gutta-percha and root canal sealer. The tooth remained asymptomatic and did not develop periapical pathology until 12 months postoperatively. CBCT and 3D modeling enable preoperative evaluation of aberrant root canal systems and facilitate endodontic treatment.

Citations

Citations to this article as recorded by

Exploring Technological Progress in Three-Dimensional Imaging for Root Canal Treatments: A Systematic Review
Kanwalpreet Kaur, Ravinder S. Saini, Sunil Kumar Vaddamanu, Shashit Shetty Bavabeedu, Vishwanath Gurumurthy, Shan Sainudeen, Vinod Babu Mathew, Shafait Ullah Khateeb, Aida Mokhlesi, Seyed Ali Mosaddad, Artak Heboyan
International Dental Journal.2025; 75(2): 1097. CrossRef
Root Canal Treatment of Oehlers Type III Dens Invaginatus in Maxillary Lateral Incisor and Remote Sinus Tract Using Dental Surgical Microscope and Cone-Beam Computed Tomography
Rie Fujii, Tomohiro Asai, Masashi Yamada, Ryo Sako, Yoshiki Tamiya, Masahiro Furusawa
The Bulletin of Tokyo Dental College.2023; 64(2): 67. CrossRef
CBCT and Micro-CT analysis of the mandibular first premolars with C-shaped canal system in a Chinese population author
Yimeng Zhang, Xunben Weng, Yu Fu, Xuekai Qi, Yihuai Pan, Yu Zhao
BMC Oral Health.2023;[Epub] CrossRef

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Study of endodontic working length of Korean posterior teeth: Jeong-Yeob Kim, Sang-Hoon Lee, Gwang-Hee Lee, Sang-Hyuk Park; J Korean Acad Conserv Dent 2010;35(6):429-435. Published online November 30, 2010; DOI: https://doi.org/10.5395/JKACD.2010.35.6.429

Abstract PDF PubReader ePub

Objectives

The aim of this study was to investigate average working lengths of Korean posterior teeth and evaluate validity of endodontic file length.

Materials and Methods

The endodontic working length of the posterior teeth of 670 Korean patients were measured than each mean value and standard deviation were investigated than the frequency deviation and standard deviation per each length were calculated.

Results

Among the canals of premolar, 66.5% of canal length was marked under 20 mm by endodontic working length and 95.4% could be measured under 22 mm and Among the canals of molars, 95.5% of canal length was marked under 20 mm endodontic working length.

Conclusions

With the result of measurement of endodontic working length of premolars of Korean, it suggested that 23 mm endodontic file is more proper than the 21 mm and 25 mm file on the market.

Citations

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A Rare Case of Nonsyndromic Generalized Radiculomegaly with a Literature Review
Mohammad Al-Obaida
Case Reports in Dentistry.2020; 2020: 1. CrossRef
Fluoride Release and Recharge Properties of Several Fluoride-Containing Restorative Materials
Dongyun Lee, Jongsoo Kim, Miran Han, Jisun Shin
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY.2020; 47(2): 196. CrossRef
Comparison of Microhardness and Compressive Strength of Alkasite and Conventional Restorative Materials
Kunho Lee, Jongsoo Kim, Jisun Shin, Miran Han
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY.2020; 47(3): 320. CrossRef
Fluoride Release of Giomer and Compomer Through the Dental Adhesive Layer
Minseon Hwang, Howon Park, Juhyun Lee, Hyunwoo Seo
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY.2017; 44(2): 180. 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.

Citations

Citations to this article as recorded by

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

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Stress distribution of endodontically treated maxillary second premolars restored with different methods: Three-dimensional finite element analysis: Dong-Yeol Lim, Hyeon-Cheol Kim, Bock Hur, Kwang-Hoon Kim, Kwon Son, Jeong-Kil Park; J Korean Acad Conserv Dent 2009;34(1):69-79. Published online January 31, 2009; DOI: https://doi.org/10.5395/JKACD.2009.34.1.069

Abstract PDF PubReader ePub

The purpose of this study was to evaluate the influence of elastic modulus of restorative materials and the number of interfaces of post and core systems on the stress distribution of three differently restored endodontically treated maxillary second premolars using 3D FE analysis. Model 1, 2 was restored with a stainless steel or glass fiber post and direct composite resin. A PFG or a sintered alumina crown was considered. Model 3 was restored by EndoCrown. An oblique 500 N was applied on the buccal (Load A) and palatal (Load B) cusp. The von Mises stresses in the coronal and root structure of each model were analyzed using ANSYS. The elastic modulus of the definitive restorations rather than the type of post and core system was the primary factor that influenced the stress distribution of endodontically treated maxillary premolars. The stress concentration at the coronal structure could be lowered through the use of definitive restoration of high elastic modulus. The stress concentration at the root structure could be lowered through the use of definitive restoration of low elastic modulus.

Citations

Citations to this article as recorded by

How loss of tooth structure impacts the biomechanical behavior of a single-rooted maxillary premolar: FEA
Roaa Abdelwahab Abdelfattah, Nawar Naguib Nawar, Engy M. Kataia, Shehabeldin Mohamed Saber
Odontology.2024; 112(1): 279. CrossRef
Effect of Proximal Caries-driven Access on the Biomechanical Behavior of Endodontically Treated Maxillary Premolars
Nawar Naguib Nawar, Roaa Abdelwahab Abdelfattah, Mohamed Kataia, Shehabeldin Mohamed Saber, Engy Medhat Kataia, Hyeon-Cheol Kim
Journal of Endodontics.2023; 49(10): 1337. CrossRef
Survival and success of endocrowns: A systematic review and meta-analysis
Raghad A. Al-Dabbagh
The Journal of Prosthetic Dentistry.2021; 125(3): 415.e1. CrossRef
Influence of Cavity Design on Stress Distribution in Second Premolar Tooth Using Finite Element Analysis
Z. Parlar, E.U. Gökçek, K. Yildirim, A. Kahyaoglu
Acta Physica Polonica A.2017; 132(3-II): 949. CrossRef
Influence of post types and sizes on fracture resistance in the immature tooth model
Jong-Hyun Kim, Sung-Ho Park, Jeong-Won Park, Il-Young Jung
Journal of Korean Academy of Conservative Dentistry.2010; 35(4): 257. CrossRef

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Effects of occlusal load on the cervical stress distribution: A three-dimensional finite element study: Hyeong-Mo Lee, Bock Hur, Hyeon-Cheol Kim, Sung-Gwan Woo, Kwang-Hoon Kim, Kwon Son, Jeong-Kil Park; J Korean Acad Conserv Dent 2006;31(6):427-436. Published online November 30, 2006; DOI: https://doi.org/10.5395/JKACD.2006.31.6.427

Abstract PDF PubReader ePub

The objective of this study was to investigate the effects of various occlusal loads on the stress distribution of the buccal cervical region of a normal maxillary second premolar, using a three dimensional finite element analysis (3D FEA).

After 3D FE modeling of maxillary second premolar, a static load of 500N of three load cases was applied. Stress analysis was performed using ANSYS (Swanson Analysis Systems, Inc., Houston, USA). The maximum principal stresses and minimum principal stresses were sampled at thirteen nodal points in the buccal cervical enamel for each four horizontal planes, 1.0 mm above CEJ, 0.5 mm above CEJ, CEJ, 0.5 mm under CEJ.

The results were as follows

1. The peak stress was seen at the cervical enamel surface of the mesiobuccal line angle area, asymmetrically.

2. The values of compressive stresses were within the range of the failure stress of enamel. But the values of tensile stresses exceeded the range of the failure stress of enamel.

3. The tensile stresses from the perpendicular load at the buccal incline of palatal cusp may be shown to be the primary etiological factors of the NCCLs.

Citations

Citations to this article as recorded by

Effect of restoration type on the stress distribution of endodontically treated maxillary premolars; Three-dimensional finite element study
Heun-Sook Jung, Hyeon-Cheol Kim, Bock Hur, Kwang-Hoon Kim, Kwon Son, Jeong-Kil Park
Journal of Korean Academy of Conservative Dentistry.2009; 34(1): 8. CrossRef
Stress distribution of endodontically treated maxillary second premolars restored with different methods: Three-dimensional finite element analysis
Dong-Yeol Lim, Hyeon-Cheol Kim, Bock Hur, Kwang-Hoon Kim, Kwon Son, Jeong-Kil Park
Journal of Korean Academy of Conservative Dentistry.2009; 34(1): 69. CrossRef

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