Morphology of Maxillary First and Second Molars Analyzed by Cone-Beam Computed Tomography in a Korean Population: Variations in the Number of Roots and Canals and the Incidence of Fusion

Kim, Yemi; Lee, Seung Jong; Woo, Jein

doi:10.1016/j.joen.2012.04.025

Cited by 195 publications

(273 citation statements)

References 30 publications

(59 reference statements)

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“…In the present study accessory canals were observed in mesiobuccal root in (MB1 30.8%, MB2 5.6%), distobuccal 15.1% and palatal root 11.7% of the teeth. These findings are in contrast with the reported frequencies of more than 50% (35) or even close to 85% (2). The presence of connecting canals observed in the present study (2.9%) is in contrast to the 100% observed by Somma et al (13) in 30 teeth of Italian origin investigated also by means of µCT.…”

Section: Discussioncontrasting

confidence: 99%

Root Canal Morphology and Configuration of 179 Maxillary First Molars by Means of Micro–computed Tomography: An Ex Vivo Study

Briseño-Marroquín

Paqué

Maier

et al. 2015

Journal of Endodontics

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INTRODUCTION The objective of this study was to propose a root canal configuration description method and to investigate the root canal system morphology of the maxillary first molar by means of micro-computed tomographic imaging. METHODS The root canal configuration, foramina, and accessory canal frequency of 179 maxillary first molars were investigated by means of micro-computed tomographic imaging and 3-dimensional software imaging. The root canal configuration and main foramina number are described from coronal to apical with a 4-digit system. RESULTS The most frequent root canal configurations were 1-1-1/1 (45.8%), 2-2-2/2 (25.1%) and 2-2-1/1 (10.1%) in mesiobuccal roots and 1-1-1/1 in distobuccal (97.2%) and palatal (98.9%) roots. The first mesiobuccal (MB1) root canal had 1 accessory canal in 26.3% of the teeth, the distobuccal root canal had 12.3%, and the palatal root canal had 9.5%; in the second mesiobuccal root canal, there was rarely 1 accessory canal. There was 1 accessory canal in 26.3%, 12.3%, and 9.5% in the MB1, distobuccal, and palatal root canals, respectively. The MB1, distobuccal, and palatal root canals had 1 main foramen. The MB2 had 1 main foramen in 39.0% of the teeth and no main foramen in 61.0%. CONCLUSIONS The root canal configuration of maxillary first molars is quite diversified. Contrary to our expectations in this research, the mesiobuccal root has predominantly 1 root canal entrance and only 1 main foramen. Anatomic variations including connecting and accessory canals occur in any third of root.

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Section: Discussioncontrasting

confidence: 99%

Root Canal Morphology and Configuration of 179 Maxillary First Molars by Means of Micro–computed Tomography: An Ex Vivo Study

Briseño-Marroquín

Paqué

Maier

et al. 2015

Journal of Endodontics

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“…The different applications of CBCT in endodontics include the assessment of non-endodontic or endodontic pathosis, internal and external resorption analysis, pre-surgical planning and canal morphology. 14,15 The fusion of two buccal roots is one of the most common aberrations of maxillary molars. A total of 0.4% of first maxillary molars and 2.2% of second maxillary molars have been reported to have this anomaly.…”

Section: Discussionmentioning

confidence: 99%

Maxillary First Molar with Two Root Canals = الرحى الأولي للفك العلوي ثنائية قنوات الجذور

Rahimi

Ghasemi

2013

SQUMJ

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abstract:Knowledge regarding the anatomic morphology of maxillary molars is absolutely essential for the success of endodontic treatment. The morphology of the permanent maxillary first molar has been reviewed extensively; however, the presence of two canals in a two-rooted maxillary first molar has rarely been reported in studies describing tooth and root canal anatomies. This case report presents a patient with a maxillary first molar with two roots and two root canals, who was referred to

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“…Najčešća opisana varijacija je prisustvo drugog meziobukalnog kanala. Studije u kojima je ispitivana kanalna morfologija drugog maksilarnog molara pokazuju da je incidenca jednog ili dva kanala u meziobukalnom korijenu približno ista [3][4][5]. U literaturi su opisani i slučajevi postojanja dva kanala u distobukalnom korijenu [3].…”

Section: Uvodunclassified

“…Radiografsko određivanje veličine glavnih gutaperka poena zuba 17 Slika 4. Definitivna opturacija zuba 17 sa pet korijenskih kanala maksilarni molar [11,4]. Uzrok ove anatomske varijacije nije poznat sa antropološkog aspekta, ali se smatra da je povezan sa poremećajima u Hertwig-ovoj epitelnoj ovojnici koji nastaju djelovanjem egzogenih ili endodgenih faktora tokom razvoja korijena zuba [12].…”

Section: Diskusijaunclassified

“…Dodatne informacije o anatomiji korijenskih kanala mogu se dobiti pažljivim posmatranjem pozicije endodontskih instrumenata u korijenskom kanalu kao i deformacijom instrumenata od nerđajućeg čelika prilikom plasiranja u kanal. Novija istraživanja ukazuju na prednosti primjene konusne ili spiralne kompjuterizovane tomografije za identifikaciju spoljašnje i unutrašnje morfologije [4,5,16].…”

Section: Diskusijaunclassified

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Maxillary second molar with five root canals: a case report

Nogo-Živanović

Kulić

Krunic

et al. 2014

Biomedicinska istraž.

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Katedra za bolesti zuba i endodonciju, Medicinski fakultet Foča, Univerzitet u Istočnom Sarajevu, Bosna i Hercegovina Kratak sadržajUvod. Osnovni cilj endodontske terapije je adekvatna obrada i opturacija cjelokupnog kanalnog sistema. Nekompletna instrumentacija i čišćenje kanala, neadekvatna opturacija i zaboravljeni kanali najčešći su razlozi neuspjeha endodontske terapije. Stoga je poznavanje morfologije korijenskog sistema zuba od velikog značaja i može da smanji neuspjeh endodontske terapije uzokovane nekompletnom kanalnom preparacijom i opturacijom. Cilj rada je da se prikaže endodontska terapija maksilarnog drugog molara sa dva palatinalna korijena i pet korijenskih kanala.Prikaz bolesnika. U radu je prikazan maksilarni drugi molar sa četiri korijena kod pacijenta starosti 27 godina. Poslije kliničkog ispitivanja i analize radiograma, uočeno je postojanje dva palatinalna korijena. Sprovedena je endodontska terapija u dvije posjete. Poslije završene intrakanalne medikacije u trajanju od 15 dana, kanali su opturisani gutaperka poenima i silerom.Zaključak. Prikaz ističe važnost dobrog poznavanja kanalne morfologije i ukazuje da anatomske abnormalnosti treba uvijek uzeti u obzir kada se sprovodi endodontsko liječenje.

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Morphology of Maxillary First and Second Molars Analyzed by Cone-Beam Computed Tomography in a Korean Population: Variations in the Number of Roots and Canals and the Incidence of Fusion

Cited by 195 publications

References 30 publications

Root Canal Morphology and Configuration of 179 Maxillary First Molars by Means of Micro–computed Tomography: An Ex Vivo Study

Root Canal Morphology and Configuration of 179 Maxillary First Molars by Means of Micro–computed Tomography: An Ex Vivo Study

Maxillary First Molar with Two Root Canals = الرحى الأولي للفك العلوي ثنائية قنوات الجذور

Maxillary second molar with five root canals: a case report

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