Abstract
Objective. The purpose of this study was to evaluate the influence of using the dental operating
microscope (DOM) for detection of the mesiolingual (ML) canal orifice in extracted
maxillary molars compared with unaided vision (no loupes or headlamps). Study Design. Using a clinical simulation model system, we mounted 39 maxillary molars in a dentoform
and placed them into a mannequin. After rubber dam placement and preparation of standard
access, 2 attempts were made to locate the ML canal with unaided vision. Then the
teeth were examined by using a DOM. Finally, all teeth were sectioned, stained, and
evaluated with the DOM for actual presence of an ML canal. Results. ML canal orifices were detected in 20 of the teeth with a sharp explorer and mirror.
In the remaining teeth, 12 ML canal orifice were located by using the DOM. Qualitative
nonparametric comparisons were used. Conclusions. The results of this study indicate that the DOM provides increased opportunity for
the dentist to detect canal orifices.(Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2002;93:190–94)
To read this article in full you will need to make a payment
Purchase one-time access:
Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online accessOne-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:
Subscribe to Oral Surgery, Oral Medicine, Oral Pathology and Oral RadiologyAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- Conventional endodontics and the operating microscope.DCNA. 1997; 3: 415-427
- Sophomore endodontics preclinical lecture and laboratory manual.University of Iowa College of Dentistry, 1997
- Principles and practice of endodontics.2nd ed. : WB Saunders, Philadelphia1996
- Anatomy and morphology of human teeth. Research summary pamphlet.(revised)2nd edition. : University Of Iowa Press, Iowa City1987
- The anatomy of the root canals of the teeth of the permanent dentition, Part I.: William Wood and Company, New York1925
- Mesiodistal and buccolingual roentgenographic investigation of 7275 root canals.Oral Surg Oral Med Oral Pathol. 1972; 33: 101-110
- Canal configuration in the mesiobuccal root of the maxillary first molar and its endodontic significance.Oral Surg Oral Med Oral Pathol. 1969; 28: 419-425
- An SEM investigation of the mesiolingual canal in human maxillary first and second molars.Oral Surg Oral Med Oral Pathol. 1990; 70: 638-643
- Canal configuration of the mesiobuccal root of the maxillary first molar of a Japanese sub-population.Int Endod J. 1999; 32: 79-87
- Clinical investigation of in vivo endodontically treated mandibular and maxillary molars.J Endod. 1982; 8: 555-557
- Frequency of two mesiobuccal root canals in maxillary permanent first molars.J Am Dent Assoc. 1973; 87: 852-856
- The secondary mesiobuccal canal of maxillary molars.J Am Dent Assoc. 1974; 88: 119-124
- Canal configuration in the mesiobuccal root of the maxillary first molar: a clinical study.J Endod. 1994; 20: 135-137
- Clinical investigation (in vivo) of endodontically treated maxillary first molars.J Endod. 1987; 13: 506-1502
- The impact of improved access and searching techniques on detection of the mesiolingual canal in maxillary molars.J Endod. 1989; 15: 82-83
- Canal morphology of maxillary molars: clinical observations of canal configurations.J Endod. 1999; 25: 446-450
- Incidence and configuration of canal systems in the mesiobuccal root of maxillary first and second molars.J Endod. 1990; 16: 311-317
- Microscopes in Endodontics.J Calif Dent Assoc. 1992; 20: 55-58
- Urban surgical microscope: dental items of significance.US Air Force Dental Investigation Service. 1995; 45: 18-24
- Microscopic surgical endodontics.NY State Dent J. 1994; 60: 43
- Use of dental operating microscope in endodontic surgery.Oral Surg Oral Med Oral Pathol. 1993; 75: 751-758
- Radiographic aids in the detection of extra root canals.Oral Surg Oral Med Oral Pathol. 1974; 37: 762-772
- Roentgenographic investigation of the mesiobuccal root of the maxillary first molar.Oral Surg Oral Med Oral Pathol. 1973; 36: 253-260
- Frequency, location, and direction of the lateral, secondary, and accessory canals.J Endod. 1975; 1: 361-366
- Double canals in single roots.Oral Surg Oral Med Oral Pathol. 1973; 35: 89-186
- Patent accessory canals: incidence in molar furcation region.Oral Surg Oral Med Oral Pathol. 1973; 36: 580-584
- Root canal morphology of maxillary permanent first molar teeth at various ages.Int Endod J. 1993; 26: 257-267
- Molar access: shape and Outline according to orifice locations.J Endod. 1989; 15: 315-318
- Clinical detection of the minor mesiobuccal canal of maxillary first molars.Int Endod J. 1992; 25: 304-306
- Fagundes MIRC. Two canals in mesiobuccal roots of maxillary molars.Int Endod J. 1998; 31: 410-414
- Effectiveness of gutta percha removal with and without the use of the surgical operating microscope.J Endod. 1999; 25: 627-628
Article info
Publication history
Accepted:
June 19,
2001
Received in revised form:
November 13,
2000
Received:
September 21,
2000
Footnotes
*Reprint requests: Lynne A. Baldassari-Cruz, DDS, Department of Endodontics, DSB 435 S, University of Iowa College of Dentistry, Iowa City, IA 52242-1001,[email protected]
Identification
Copyright
© 2002 Mosby, Inc. Published by Elsevier Inc. All rights reserved.
