Root and canal morphology of maxillary first and second permanent molar teeth in a Ugandan population

Rwenyonyi, Charles Mugisha; Kutesa, Annet; Muwazi, Louis; Buwembo, William

doi:10.1111/j.1365-2591.2007.01265.x

Cited by 73 publications

(83 citation statements)

References 21 publications

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“…Yet, it would be difficult to sustain that this hypothesis is correct due to the high agreement, concerning the root canal configuration similarities in the distobuccal and palatal root canals, with other authors (15,(25)(26)(27)(28).…”

Section: Discussionmentioning

confidence: 94%

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: Discussionmentioning

confidence: 94%

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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“…In a visual inspection and observation using radiographic images 14) , some ramifications may be missed; therefore, observation and calculation of the exact rate of ramifications may have been difficult. The method of observing transparent tooth samples prepared by injecting dyes into the root canals facilitated the observation of root canals, and therefore, there have since been several similar reports 2,12,13,15,16,19,21) . However, this method requires preparation by cleaning the contents of root canals with chemicals before dye injection, and may cause events such as insufficient staining due to the remaining contents of root canals, enlargement of the root canals due to the chemicals, and fissures in the extracted teeth due to dryness; therefore, it is presumably difficult to reproduce the original root canal morphology.…”

Section: Discussionmentioning

confidence: 99%

“…For this reason, various methods have been used to determine the rate of root canal ramifications 1,5,6,17) ; however, all of these anaThis paper was a thesis submitted by Dr. M. Yamada to the Graduate School of Tokyo Dental College. tomical or clinical methods have depended on classification based on unique criteria, and there are few reports involving numerical criteria 2,16,21,23) . We imaged human teeth with microcomputed tomography (Micro-CT) and observed slices of root canals of human maxillary first molars using three-dimensional (3-D) reconstructions produced in a nondestructive manner using 3-D reconstruction software.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional Analysis of Mesiobuccal Root Canal of Japanese Maxillary First Molar Using Micro-CT

Yamada

Ide

Matsunaga

et al. 2011

Bull. Tokyo Dent. Coll.

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The objective of this study was to three-dimensionally observe the morphological characteristics of mesiobuccal root canals of Japanese maxillary first molars using microcomputed tomography (Micro-CT) and classify root canal variations. This study used 90 maxillary first molars. Three-dimensional reconstruction was performed using data obtained by Micro-CT, and cross-sections of the root canals were observed. Moreover, the root canal morphology was classified by the configuration and root canal diameter, and was evaluated for occurrence using the classification by Weine et al. (1969) as a reference. Overall, single root canals were observed in 44.4%, incomplete separation root canals in 22.3%, and completely separate root canals (upper and lower separation root canals) in 33.3%. Mesiobuccal root canals often had intricate configurations, and accessory root canals (lateral canals and apical ramifications) were observed in most of the mesiobuccal root canals (76.7%), irrespective of whether there were ramifications of the main root canals. While there were no marked differences in the incidence of root canal ramifications between this study and earlier reports, the incidence of accessory root canals was higher in this study. This result may be explained by the far more superior visualization ability of Micro-CT than conventional methods, which allowed the detection of microscopic apical ramifications previously difficult to observe.

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“…25 MB kök üst ikinci büyük azı dişlerinde, birinci büyük azı dişlerinden daha yüksek insidansa sahiptir. 26 Çin toplumu üzerinde gerçekleştirilen bir çalışmada üst birinci büyük azı dişlerde palatal ve DB köklerin füzyonu en sık görülürken, ikinci büyük azı dişlerde ise palatal ve MB köklerin füz-yonu en yüksek insidansa sahiptir. 27 Birmanyalı ve Tayvan topluluklarında yapılan çalışmalarda, üst birinci ve ikinci büyük azı dişlerinde tüm köklerin ayrı olduğu rapor edilmiştir.…”

Section: Discussionunclassified

“…Vertucci Tip I kanal konfigürasyonu-nun MB köklerde en sık gözlenen kanal konfigü-rasyonu olduğunu bildirmişlerdir. 8,26,28 Lee ve ark.nın üst birinci büyük azı dişlerinin MB kökle-rinin KIBT ile inceledikleri çalışmalarında MB köklerin 70,5'i iki kanal sahipken, %28,2'si tek kanala, %1,3'ünün üç kanala sahip olduğu rapor edilmiştir. 30 Cleghorn ve ark.…”

Section: Discussionunclassified

Investigation of the Root Canal Configuration of Maxillary Permanent First and Second Molars Using Cone-Beam Computed Tomography in a Turkish Population

Demirbuğa¹,

Büyük²,

Şekerci³

et al. 2015

Turkiye Klinikleri J Dental Sci

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Ö ÖZ ZE ET T A Am ma aç ç: : Bu çalışmanın amacı, üst birinci ve ikinci büyük azı dişlerinin kök kanal morfolojilerinin konik ışınlı bilgisayarlı tomografi (KIBT) ile incelenmesidir. G Ge er re eç ç v ve e Y Yö ön nt te em ml le er r: : Altı yüz beş hastanın üç boyutlu üst birinci (n=894) ve ikinci büyük azı dişleri (n=944) içeren KIBT görün-tüleri şu değerlendirmeleri yapmak üzere incelenmiştir. (i) Köklerin sayısı ve morfolojisi; (ii) Her bir kökteki kanal sayısı; (iii) Fazla kök kanallarının insidansı ile kanal konfigürasyonlarının tipi (Vertucci sınıflamasına göre) ve (iv) C-şekilli kanal sisteminin oranı. B Bu ul lg gu ul la ar r: : Hem üst birinci büyük azı (%93,6) ve üst ikinci büyük azı (%69,1) dişlerinde en sık üç ayrı kök morfolojisi sıklıkla gözlenmektedir. Tüm köklerde en sık gözlenen tip I kanal konfigürasyonudur. Meziobukkal (MB) kökler diğer köklerle kıyaslandığında, hem birinci hem de ikinci büyük azı dişlerde en fazla varyasyon gösteren kanal konfigürasyonlarına sahiptir (p<0,05). C-şekilli kanal sistemi ikinci büyük azı dişlerinde %0,52 olarak bulunmuştur. Ayrıca, birinci ve ikinci büyük azı dişlerinde fazladan kanal tipine rastlanmamıştır. İkinci meziobukkal kanal (MB2) insidansı (birinci ve ikinci büyük azı diş-leri için; kadınlarda %39,3 ve erkeklerde %43,3) cinsiyetler arasında istatistiksel olarak farklılık göstermiştir (p<0,05). S So on nu uç ç: : Üst büyük azı dişlerindeki MB kökler distobukkal veya palatinal kök-lerden daha fazla kanal varyasyonlarına eğilim göstermektedir ve MB2 insidansı üst birinci büyük azı dişlerinde üst ikinci büyük azı dişlerinden daha yüksek orana sahiptir. Bu veriler başarılı endodontik tedaviyi kolaylaştırmaktadır.A An na ah ht ta ar r K Ke el li im me el le er r: : Konik ışınlı bilgisayarlı tomografi; kök kanal tedavisi A AB BS ST TR RA AC CT T O Ob bj je ec ct ti iv ve e: : The aim of this study is to investigate the root canal morphology of maxillary first and second molars using cone beam computed tomography (CBCT) in a Turkish subpopulation. M Ma at te er ri ia al l a an nd d M Me et th ho od ds s: : The three-dimensional CBCT images of maxillary first (n=894) and second molar (n=944) teeth from 605 Turkish patients were analyzed to make the following observations: (i) the number of roots and their morphology; (ii) the number of canals per root; (iii) the incidence of accessory root canals, the types of canal configurations (according to Vertucci's classification), and (iv) the frequency of C-shaped canal system. R Re es su ul lt ts s: : The most common root morphology was that of three separate roots in both first (93.6%) and second molars (69.1%). While, type 1 canal configuration was the most frequent in all roots. The mesiobuccal roots (MBRs) had significantly more variations in canal configuration when compared with other roots in both the first and second molars (p<0,05). C-shaped canal system were found as 0.52% in second molars. And so, no additional canal types were identified in the first and second molars. The incidence of a second mesiobuccal ...

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Root and canal morphology of maxillary first and second permanent molar teeth in a Ugandan population

Cited by 73 publications

References 21 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

Three-dimensional Analysis of Mesiobuccal Root Canal of Japanese Maxillary First Molar Using Micro-CT

Investigation of the Root Canal Configuration of Maxillary Permanent First and Second Molars Using Cone-Beam Computed Tomography in a Turkish Population

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