Abstract
Introduction
The knowledge of root canal morphology and the existing anatomical variations is essential
for successful endodontic therapy.
Methods
This report presents an extraordinary case of unusual tooth morphology involving the
bilateral existence of 7 maxillary and mandibular first and second molars with a single
root and a single canal in a patient.
Results
Endodontic retreatment of the affected teeth #15, #19, and #18 was performed. Cone-beam
computed tomography (CBCT) images confirmed our diagnostic and therapeutic measures
after endodontic management of the teeth.
Conclusions
This morphologic variation has not been reported in the literature. The availability
of 3-dimensional images further provided the opportunity for the precise description
of the anatomy of 7 maxillary and mandibular molars with single roots and single canals.
Key Words
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 Journal of EndodonticsAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- The internal anatomy of teeth with special reference to the pulp and its branches.Dent Cosmos. 1925; 67: 581-592
- Root canal morphology of the human mandibular first molar.Oral Surg Oral Med Oral Pathol. 1971; 32: 778-783
- A clearing technique for the study of root canal systems.J Endod. 1980; 6: 421-424
- Mesio-distal and bucco-lingual roentgenographic investigation of 7275 root canals.Oral Surg Oral Med Oral Pathol. 1972; 33: 101-110
- Clinical investigation of in vivo endodontically treated mandibular and maxillary molars.J Endod. 1982; 8: 555-557
- Study of the apices of human permanent teeth with the use of a scanning electron microscope.Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1994; 77: 172-176
- Canal morphology of maxillary molars: clinical observations of canal configurations.J Endod. 1999; 25: 446-450
- Virtual endodontics: three-dimensional tooth volume representations and their pulp cavity access.J Endod. 2002; 28: 599-602
- Three-dimensional analysis of root canal geometry by high-resolution computed tomography.J Dent Res. 2000; 79: 1405-1409
- Periapical radiographic techniques during endodontic diagnosis and treatment.Int Endod J. 1997; 30: 250-261
- Incidence of four-rooted maxillary second molars: literature review and radiographic survey of 1200 teeth.J Endod. 1989; 15: 129-131
- Radix mesiolingualis and radix distolingualis in a collection of permanent maxillary molars.Acta Odontol Scand. 2000; 58: 229-236
- Clinical and macroscopic study of maxillary molars with two palatal roots.Int Endod J. 2002; 35: 796-801
- Three canals in the mesial root of mandibular first molars: a clinical study.Int Endod J. 1989; 22: 39-43
- Radix entomolaris: identification and morphology.Scand J Dent Res. 1990; 98: 363-373
- Middle distal canal o the mandibular first molar: a case report and literature review.Int Endod J. 2010; 43: 714-722
- Endodontic management of a maxillary first molar with a single root and a single canal diagnosed with the aid of spiral CT: a case report.J Endod. 2006; 32: 687-691
- Maxillary first molar with an usual morphology: report of a rare case.Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008; 106: 62-65
- Single-rooted maxillary first molar with a single canal: endodontic retreatment.Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008; 106: 66-68
- The maxillary second molar: variations in the number of roots and canals.Int Endod J. 1996; 29: 365-369
- Root canals in one-rooted maxillary second molars.Scand J Dent Res. 1992; 100: 249-256
- Four second molars with single roots and single canals in the same patient: a case report.Int Endod J. 2000; 33: 138-142
- Canal configuration of the mandibular second molar using a clinically oriented in vitro method.J Endod. 1988; 14: 207-213
- Root canal anatomy of mandibular second molar: part I.Int Endod J. 1990; 23: 34-39
- Morfologia endodôntica dos segundos molars inferiors.Rev Faculd Odontol Porto Alegre. 1995; 36: 12-14
- Identification of independent middle mesial canal in mandibular first molar using cone-beam computed tomography imaging.J Endod. 2010; 36: 542-545
- Maxillary first molar with seven root canals diagnosed with cone-beam computed tomography scanning: a case report.J Endod. 2010; 36: 915-921
- Root and root canal morphology of the human permanent maxillary first molar: a literature review.J Endod. 2006; 32: 813-821
- Bilateral C-shaped configuration in maxillary first molars.J Endod. 1990; 16: 601-603
- Endodontic treatment of bilaterally occurring 4-rooted maxillary second molars: case report.J Can Dent Assoc. 2003; 69: 733-735
- Bilateral root and root canal aberrations in a dental school patient population.J Endod. 1994; 20: 38-42
- A retrospective study of endodontically treated mandibular first molars in a Chinese population.J Endod. 1993; 19: 471-473
- Evaluation of root and canal systems of mandibular first molars in Taiwanese individuals using cone-beam computed tomography.J Formos Med Assoc. 2010; 109: 303-308
- Radiographic survey of the prevalence of conical lower second molar.Int Endod J. 1981; 14: 188-190
- A new volumetric CT machine for dental imaging based on the cone-beam technique: preliminary results.Europ Radiol. 1998; 8: 1558-1564
- New dimesions in endodontic imaging: part 1—conventional and alternative radiographic systems.Int Endod J. 2009; 42: 447-462
Article info
Publication history
Published online: November 15, 2010
Identification
Copyright
© 2011 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
