Evaluation of submandibular fossa using computed tomography and panoramic radiography
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Abstract
Objective
We aimed to evaluate the correlation between the depth of the submandibular fossa (SF) using computed tomography (CT) and the visibility of the SF and mandibular canal (MC) on panoramic images.
Methods
Eighty-six CT scans and panoramic radiographs were assessed. The appearance of the SF and the corticalization of the MC were evaluated on panoramic radiographs. The depth of the SF was measured using cross-sectional CT images.
Results
The average SF depth was 1.99 ± 0.94 mm (mean ± standard deviation). The SF region appeared as a radiolucent area in most hemimandibles (64 %). The corticalization of the MC was observed in 59 % of hemimandibles. The radiolucent appearance of the SF region and the corticalization of the MC on panoramic radiographs were not statistically correlated with the type of SF (P > 0.05).
Conclusions
Our results showed that the depth of the SF was >2 mm in 45 % of patients and that panoramic radiographs are not reliable for determination of the depth of the SF.
Keywords
Tomography Anatomical variations Dental implantNotes
Conflict of interest
A Pinar Sumer, A. Zeynep Zengin, Canan Uzun, T. Berre Karoz, Mahmut Sumer, and Murat Danaci declare that they have no conflict of interest.
Human rights
All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008 (5).
Informed consent
Informed consent was obtained from all patients for being included in the study. The study protocol was approved by the University Institutional Review Board.
References
- 1.Thunthy KH, Yeadon WR, Nasr HF. An illustrative study of the role of tomograms for the placement of dental implants. J Oral Implantol. 2003;29:91–5.PubMedCrossRefGoogle Scholar
- 2.Hu KS, Choi DY, Lee WJ, Kim HJ, Jung UW, Kim S. Reliability of two different presurgical preparation methods for implant dentistry based on panoramic radiography and cone-beam computed tomography in cadavers. J Periodontal Implant Sci. 2012;42:39–44.PubMedCentralPubMedCrossRefGoogle Scholar
- 3.Benavides E, Rios HF, Ganz SD, An CH, Resnik R, Reardon GT, et al. Use of cone beam computed tomography in implant dentistry: the International Congress of Oral Implantologists consensus report. Implant Dent. 2012;21:78–86.PubMedCrossRefGoogle Scholar
- 4.Parnia F, Fard EM, Mahboub F, Hafezeqoran A, Gavgani FE. Tomographic volume evaluation of submandibular fossa in patients requiring dental implants. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010;109:e32–6.PubMedCrossRefGoogle Scholar
- 5.Jung T. Study of the fovea submandibularis during pre-implant diagnostics. J Friadent Implant. 2004;1:34–7.Google Scholar
- 6.de Oliveira-Santos C, Souza PH, de Azambuja Berti-Couto S, Stinkens L, Moyaert K, Rubira-Bullen IR, et al. Assessment of variations of the mandibular canal through cone beam computed tomography. Clin Oral Investig. 2012;16:387–93.PubMedCrossRefGoogle Scholar
- 7.Alhassani AA, AlGhamdi AS. Inferior alveolar nerve injury in implant dentistry: diagnosis, causes, prevention, and management. J Oral Implantol. 2010;36:401–7.PubMedCrossRefGoogle Scholar
- 8.White SC, Pharoah MJ. Oral radiology principles and interpretation. 4th ed. Philadelphia: Mosby, Inc.; 2000. p. 188–9.Google Scholar
- 9.Leong DJ, Chan HL, Yeh CY, Takarakis N, Fu JH, Wang HL. Risk of lingual plate perforation during implant placement in the posterior mandible: a human cadaver study. Implant Dent. 2011;20:360–3.PubMedCrossRefGoogle Scholar
- 10.Chan HL, Benavides E, Yeh CY, Fu JH, Rudek IE, Wang HL. Risk assessment of lingual plate perforation in posterior mandibular region: a virtual implant placement study using cone-beam computed tomography. J Periodontol. 2011;82:129–35.PubMedCrossRefGoogle Scholar
- 11.Ferneini E, Gady J, Lieblich SE. Floor of mouth hematoma after posterior mandibular implants placement: a case report. J Oral Maxillofac Surg. 2009;67:1552–4.PubMedCrossRefGoogle Scholar
- 12.Kalpidis CD, Setayesh RM. Hemorrhaging associated with endosseous implant placement in the anterior mandible: a review of the literature. J Periodontol. 2004;75:631–45.PubMedCrossRefGoogle Scholar
- 13.Kalpidis CD, Konstantinidis AB. Critical hemorrhage in the floor of the mouth during implant placement in the first mandibular premolar position: a case report. Implant Dent. 2005;14:117–24.PubMedCrossRefGoogle Scholar
- 14.Givol N, Chaushu G, Halamish-Shani T, Taicher S. Emergency tracheostomy following life-threatening hemorrhage in the floor of the mouth during immediate implant placement in the mandibular canine region. J Periodontol. 2000;71:1893–5.PubMedCrossRefGoogle Scholar
- 15.Darriba MA, Mendonça-Caridad JJ. Profuse bleeding and life-threatening airway obstruction after placement of mandibular dental implants. J Oral Maxillofac Surg. 1997;55:1328–30.PubMedCrossRefGoogle Scholar
- 16.Greenstein G, Cavallaro J, Tarnow D. Practical application of anatomy for the dental implant surgeon. J Periodontol. 2008;79:1833–46.PubMedCrossRefGoogle Scholar
- 17.Watanabe H, Mohammad Abdul M, Kurabayashi T, Aoki H. Mandible size and morphology determined with CT on a premise of dental implant operation. Surg Radiol Anat. 2010;32:343–9.PubMedCrossRefGoogle Scholar