The Relationship of the Inferior Dental Canal to the Roots of Impacted Mandibular Third Molars in Jordanian Population
Abdalla M. Hazza's, Zakarreya S.M. Albashaireh, Anwar B. Bataineh
Citation Information :
Hazza's AM, Albashaireh ZS, Bataineh AB. The Relationship of the Inferior Dental Canal to the Roots of Impacted Mandibular Third Molars in Jordanian Population. J Contemp Dent Pract 2006; 7 (2):71-78.
The aim of this study was to evaluate the topographic relationship between the inferior dental canals (IDCs) and the roots of impacted mandibular third molars.
Preoperative orthopantomograms (OPGs) were examined and the proximity of the IDC to the roots of impacted mandibular third molars was categorized into the following: groups: superimposition, adjacent, perforation, grooving, notching, or none. The categories notching, grooving, and perforation were regrouped together and called the true relationship between the IDC and the root apices. The type of impaction, age, and sex of the patient were also noted.
The positional category of 96.1% of the radiographs with bilateral impactions was identical on both sides of the mandible. Out of 2526 impacted mandibular third molars examined, 1146 (45.3%) belonged to the superimposition category, 663 (26.2%) were adjacent, 312 (12.3%) showed grooving, 78 (3.08%) showed notching, and 9 (0.35%) were actually perforating the IDC. The results showed 15.7% of the total cases were in true relationship with the IDC. There was a significant association (p = 0.000) between patient's age and true relationship.
Identical positional relationship of the bilateral impacted third molars to the IDC was noted in 96.1% of the radiographs. The position of the IDC in relation to the roots of impacted third molars varied according to the patient's age.
Hazza'a AM, Albashaireh ZSM, Bataineh AB. The Relationship of the Inferior Dental Canal to the Roots of Impacted Mandibular Third Molars in a Jordanian Population. J Contemp Dent Pract 2006 May;(7)2:071-078.
Incidence of nerve damage following third molar removal a West of Scotland Oral Surgery Research Group study. Br J Oral Maxillofac Surg 30:78,1992.
Clinical consequences of complaints and complications after removal of the mandibular third molar. Int J Oral Surg 1977;6:29-37.
A prospective study of complications related to mandibular third molar surgery. J Oral Maxillofac Surg 1985;43:767-769.
Le canal dentaire et son nerf chez l'adult. Ann Anat Pathol 1927;4:975-987.
Intramandibular course of the inferior alveolar nerve. J Anat 1971;108:433-440.
Anatomische und roentgenologische untersuchungen veber den verlang des nervus alveolaris inferior um unbezahten kieger. Acta Stomatol Belg 1975;72:771-776.
The radiographic appearance of the inferior dental canal: an additional variation. Br J Oral Surg 1977a; 15: 171-172.
Variation in the normal anatomy of the inferior dental (mandibular) canal: a retrospective study of panoramic radiographs from 3612 routine dental patients. Br J Oral Surg 1977b; 15: 55-63.
Variation in the position of the inferior dental canal and its significance to restorative dentistry. J Dent 1988;16:36-39.
Cross-sectional tomography. A diagnostic technique for determining the buccolingual relationship of impacted mandibular third molars and the inferior alveolar neurovascular bundle. Oral Surg Oral Med Oral Pathol. 1990;70(6):791-797.
Darstellung der Beziehung von Mandibularkanal zu tief verlagerten WeisheitszÊhnenmet Hilfe der Spiraltomographie (Scanora). Dtsch Zahnärztl Z. 1995;50:613-616.
Sensory paralysis of the face due to extraction of a wisdom tooth. Dent Rec 1902;22:565-566.
Paresthesia: a postoperative complication following removal of the mandibular third molar. Am J Orthod 1940;26:278-284.
Severance of mandibular nerve during extraction. Br Dent J 1947;83:259-260.
Injuries to the inferior dental and mental nerves. J Oral Surg 1958;16:300-305.
Third molarsurgery: Relationship of root to mandibular canal and injuries to inferior dental nerve. Tandlaegebladet 1983;87:619.
Dysesthesia after mandibular third molar surgery: a retrospective study and analysis of 1377 surgical procedures. J Am Dent Assoc 1980;100:185-192.
Prevention of damage of the inferior dental nerve during extraction of mandibular third molars. Br Dent J 1960;109:355-363.
Preoperative assessment of the relationship between the mandibular third molar and the mandibular canal by axial coputed tomography with coronal and sagittal reconstruction. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2003 Nov;96(5):639-646.
A method of ascertaining the relative position of interrupted teeth by means of film radiographs. Proc R Soc Med (Odont Sec). 1910;3:87-90.
Occlusal radiography of the mandibular third molar. Dent Radiogr Photogr 1952;25:53-55.
Roentgenographic localization of the mandibular canal. J Oral Surg 1952;10:325-329.
A technique for the roentgenographic examination of impacted mandibular third molars. J Oral Surg 1952;10:138-141.
The radiological prediction of inferior alveolar nerve injury during third molar surgery. Br J Oral Maxillofac. Surg. 1990;28:20-25.
Accuracy of radiographs in classification of impacted third molar teeth. Br J Oral. Maxillofac Surg. 1988;46:656-660.
Conventional cross-sectional tomographic evaluation of mandibular third molars. Quintessence Int 2000 (31) 49-56.
Stereographic assessment of mandibular canal in relation to the roots of impacted lower third molar using multiprojection narrow beam radiography. Int J Oral. Maxillofac Surg. 1992 (21): 85-89.
Evaluation of a new radiographic technique: diagnostic accuracy for mandibular third molars. Dentomaxillofac Radiol. 1998; (27):255-263.
Assessment of the space for the lower wisdom teeth. Panoramic radiography in comparison with computed tomography. J Orofac Orthop. 1998; (59): 17-28.
High resolution computed tomography of the inferior alveolar and lingual nerves. Neuroradiology 1994;(36):236-238.
Faculty of Dental Surgery. The management of patients with third molar teeth: report of a working party convened by the Faculty of Dental Surgery. London: The Royal College of Surgeons of England; 1997.
Inferior alveolar nerve damage following removal of mandibular third molar teeth. Aprospective study using panoramic radiography. Aust Dent J. 1997;(42):149-152.
The Faculty of General Dental Practitioners. London: The Royal College of Surgeons of England; 1998. p.20.
A coparison of conventional panoramic radiographs with volumetric computed tomography images in the preoperative assessment of impacted mandibular third molars. J Oral Moxillofac Surg 2002;(60):979-984.
Reliability of panoramic radiography in evaluation the topographic relationship between the mandibular canal and impacted third molars. J Am Dent Assoc. 2004;(7):312-318.
Digitale Rntgentechniken im Zahn-und Kieferbereich-eine bersicht. Dtsch Zahnärztl Z. 1996;51:194-205.
2-D and 3-D reconstructions of spiral computed tomography in localization of the inferior alveolar canal for dental implants. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1999 Mar;87(3):369-74.
Evaluation of the inferior alveolar canal by cross-sectional hypocycloidal tomography. Implant Dent. 2000;9(4):339-45.
Locating the mandibular canal in panoramic radiographs. Int J Oral Maxillofac Implants. 1997 Jan-Feb;12(1):113-7.
A comparison of panoramic radiography with computed tomography in the planning of implant surgery. Dentomaxillofac Radiol. 1991 Feb;20(1):40-2.
Use of dental panoramic tomographs to predict the relation between mandibular third molar teeth and the inferior alveolar nerve. Radiological and surgical findings, and clinical outcome. Br J Oral Maxillofac Surg. 2004;(42):21-27.