Clinical investigation (In Vivo) of endodontically treated maxillary first molars

Neaverth, Elmer J.; Kotler, Lawrence M.; Kaltenbach, Robert F.

doi:10.1016/s0099-2399(87)80018-3

Cited by 127 publications

(116 citation statements)

References 11 publications

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“…With the advent of newer designs of ultrasonic instruments designed for more efficiency (Ruddle CPR), combined with dependable ultrasonic units (Spartan), the trough-ing process has become faster and cleaner. In most teeth, the location of MB2 canal orifices agree with the findings of several authors (2,3,7,8). The MB2 orifice openings were usually found mesial to an imaginary line between the MB 1 and palatal orifices, and commonly, about 2 to 3 mm palatal to the MB 1 orifice.…”

Section: Discussionsupporting

confidence: 91%

“…The presence of a second (mesiobuccal (MB)) (MB2) canal in the MB root of the maxillary molars has been the subject of many discussions and studies (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14). Hess and Zurcher's (1) landmark study in 1925 showed the mesial root of the lower first molar, and the MB root of the upper molars had the most ramifications of any teeth.…”

mentioning

confidence: 99%

“…The results of these studies have shown from 18.6% (2) to 96.1% (3) occurrence of the fourth (MB2) canal in maxillary first molars, depending on which method was used. The literature shows both clinical (in vivo) and laboratory (in vitro) results (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14) and that more MB2 canals can be found in the laboratory than were found clinically (4). In short, the incidence varies widely, depending on the method used: whether done with or without dye penetration, radiographically, various sectioning tech-niques, record reviews, different social groups, different age groups, with or without magnification, etc.…”

mentioning

confidence: 99%

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Canal morphology of maxillary molars: Clinical observations of canal configurations

Stropko

1999

Journal of Endodontics

226

210

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An examination of 1732 conventionally treated maxillary molars was made in an attempt to deter-mine the percentage of MB2 canals that could be located routinely. The teeth examined were 1096 first molars, 611 second molars, and 25 third mo-lars. The results were recorded on a modified computer program over an 8-yr period of time. An in-teresting trend was noted. The MB2 canal was found in 802 (73.2%) first molars, 310 (50.7%) sec-ond molars, and 5 (20.0%) third molars. It occurred as a separate canal in 54.9% of first molars, 45.6% of second molars, and joined in all third molars. However, as the operator became more experi-enced, scheduled sufficient clinical time, routinely employed the dental operating microscope, and used specific instruments adapted for microend-odontics, MB2 canals were located in 93.0% of first molars and 60.4% in second molars.

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Section: Discussionsupporting

confidence: 91%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Canal morphology of maxillary molars: Clinical observations of canal configurations

Stropko

1999

Journal of Endodontics

226

210

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“…In the literature review, three canaled mesiobuccal roots have been reported to occur in 0.2-12.5 % (Ahmad & Al-Jadaa). Although many authors have studied the internal anatomy of the mesiobuccal roots, overall clinical studies (Neaverth et al, 1987;Fogel et al, 1994;Lee et al, 2011;Ahmad & Al-Jadaa;Silva et al, 2014) revealed a lower incidence of 3 canals than the laboratory studies did.…”

Section: Introductionmentioning

confidence: 85%

Evaluation of Complex Mesiobuccal Root Anatomy in Maxillary First Molar Teeth

Kaya-Büyükbayram

Kartal

2018

Int. J. Morphol.

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KAYA-BÜYÜKBAYRAM, I. & KARTAL, N.Evaluation of complex mesiobuccal root anatomy in maxillary first molar teeth. Int. J. Morphol., 36(2):460-464, 2018. SUMMARY:The objective of this study was to investigate the complex anatomy of mesiobuccal roots, supporting and complementing commonly applied clearing technique, using access cavity modification and the pulpal groove deepening method. Three hundred and ninety eight extracted intact human maxillary first molars were included in this study. Firstly, modified rhomboidal shape access cavities were prepared then, the developmental groove between the mesiobuccal and the palatal canals was deepened 1 mm with a round slow speed bur. Indian ink was injected into both the canal orifices of mesiobuccal roots and into the groove between mesiobuccal and palatal canals, using a 22 gauge syringe. Then the clearing technique was applied. The incidence of one canal was 30.90 %, two canals was 62.07 %, three canals was 7.03 %. In twenty five (6.28 %) of the mesiobuccal roots, 8 root canal types, which are not included in Vertucci's classification, were seen. All these root canal types had three root canals. The establishment of adequate access and deepening of the pulp chamber floor increased the probability of locating the third canal in the mesiobuccal root of maxillary first molars.

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“…Many of these studies are in vitro, 1,[8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] whereas in vivo studies are limited. [24][25][26][27][28][29][30][31] On the other hand most of the observations have been done by naked eye 1,9,11-18 whereas relatively very few have used magnification. 18,21,22,[29][30][31][32][33] Results of studies using microscope 18,29,30,34,35 are very surprising and indicative of efficiency and utility of using microscope for such observations.…”

Section: Discussionmentioning

confidence: 99%

An in vivo Study of Variations in the Canal Anatomy of Maxillary and Mandibular First Molar using Surgical Operating Microscope

Ahmed¹,

Pawar²

2013

World Journal of Dentistry

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Introduction:The success of endodontic therapy depends upon the ability of the clinician to locate, clean, shape and completely obturate all the root canal systems present in a tooth. In the recent times number of additional canals vs traditional canals has been very striking and pointing toward a greater degree of variation in the root canal morphology which needs to studied, understood and born in mind during practice so as to enhance the success. Introduction of surgical operating microscope is a major breakthrough in enhancement of vision in endodontics which not only gives required magnification but also coaxial illumination and video output. These facilities should be of a great help in location of small otherwise difficult to locate accessory canals.

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Clinical investigation (In Vivo) of endodontically treated maxillary first molars

Cited by 127 publications

References 11 publications

Canal morphology of maxillary molars: Clinical observations of canal configurations

Canal morphology of maxillary molars: Clinical observations of canal configurations

Evaluation of Complex Mesiobuccal Root Anatomy in Maxillary First Molar Teeth

An in vivo Study of Variations in the Canal Anatomy of Maxillary and Mandibular First Molar using Surgical Operating Microscope

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