Browse > Article

A study of the panoramic radiographic images of the buccolingual dilaceration  

Kim, Young-Ho (Department of Oral and Maxillofacial Radiology, School of Dentistry, Seoul National University)
Jeong, Hwan-Seok (Department of Oral and Maxillofacial Radiology, School of Dentistry, Seoul National University)
Huh, Kyung-Hoe (Department of Oral and Maxillofacial Radiology, School of Dentistry and Dental Research Institute, Seoul National University)
Yi, Won-Jin (Department of Oral and Maxillofacial Radiology, Dental Research Institute and SNU Craniomaxillofacial Life Science 21, School of Dentistry, Seoul National University)
Heo, Min-Suk (Department of Oral and Maxillofacial Radiology, School of Dentistry and Dental Research Institute, Seoul National University)
Lee, Sam-Sun (Department of Oral and Maxillofacial Radiology, Dental Research Institute and SNU Craniomaxillofacial Life Science 21, School of Dentistry, Seoul National University)
Choi, Soon-Chul (Department of Oral and Maxillofacial Radiology, School of Dentistry and Dental Research Institute, Seoul National University)
Publication Information
Imaging Science in Dentistry / v.40, no.1, 2010 , pp. 39-44 More about this Journal
Abstract
Purpose : We want to identify the appearance of the buccolingual root dilaceration teeth in the panoramic views and specify the characteristics of these teeth. Materials and Methods : One thousand-six patients were examined on the basis of both panoramic and CT image criteria. We diagnosed and excluded certain teeth from the samples; both prosthodontic or pathologic lesion appearing teeth and mesiodistally dilacerated ones. We meticulously discerned buccolingually dilacerated teeth in the CT images and total 48 samples were selected. The degree of severity in dilaceration was standardized by 2 types of criteria. The samples were differentiated into 3 groups and again categorized into six types showing from the panoramic views: irregular view on the root apex area, clear blunt on the root tip, stepping on root tip, double lamina dura or double tip, arrow-target shaped root, bull's eye, normal view. Results : The types of teeth selected from total 48 buccolingual root dilaceration samples were mandibular first and second molar, premolars, canines, and lateral incisors. The direction of dilaceration was an even percentage to each buccal and lingual side for most selected teeth, however, that of both canines and lateral incisors were directed in almost a buccal side. In the panoramic views, the root types of the buccolingually dilacerated teeth were irregular view on the root apex area, clear blunt on the root tip, stepping on root tip and normal types were almost always normal view. The more severity in dilareated degree, the more chances of observation in the panoramic views were clear blunt on the root tip and stepping on root tip. Conclusion : As observed in the shape of stepping on root tip or double lamina dura in the panoramic views, there can be much more probability to diagnose as a buccolingually dilacerated root.
Keywords
Panorama; Root dilaceration; Tomography; Computed;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Hamasha AA, Al-Khateeb T, Darwazeh A. Prevalence of dilaceration in Jordanian adults. Int Endod J 2002; 35 : 910-2.   DOI   ScienceOn
2 Kishi K, Fujiki T, Hirakawa K, Hasegawa I, Uemura M, Adachi K, et al. Three-dimensional CT imaging in the evaluation of fracture of the jaws. Oral Radiol 1993; 9 : 17-25.   DOI
3 Hamamoto S, Morita Y, Sato T, Noikura T. Three-dimensional imaging of subcondylar fractures of the mandible with spiral CT. Oral Radiol 1993; 9 : 43-5.   DOI
4 Chohayeb AA. Dilaceration of permanent upper lateral incisors: frequency, direction, and endodontic treatment implications. Oral Surg Oral Med Oral Pathol 1983; 55 : 519-20.   DOI   ScienceOn
5 Walton RE, Torabinejad M. Principles and practice of endodontics. 2nd ed. Philadelphia: WB Saunders; 1996. p. 330-2.
6 Davies PH, Lewis DH. Dilaceration-a surgical/orthodontic solution. Br Dent J 1984; 156 : 16-8.   DOI   ScienceOn
7 Thongudomporn U, Freer TJ. Prevalence of dental anomalies in orthodontic patients. Aust Dent J 1998; 43 : 395-8.
8 von Gool AV. Injury to the permanent tooth germ after trauma to the deciduous predecessor. Oral Surg Oral Med Oral Pathol 1973; 35 : 2- 12.   DOI   ScienceOn
9 Maragakis MG. Crown dilaceration of permanent incisors following trauma to their primary predecessors. J Clin Pediatr Dent 1995; 20 : 49-52.
10 Tiecke RW. Pathologic physiology of oral disease. St. Louis, MO: Mosby; 1959.
11 Shafer WG, Hine MK, Levy BM. A textbook of oral pathology. Philadelphia, PA: W.B. Saunders; 1983. p. 308.
12 Chadwick SM, Millet D. Dilaceration of a permanent mandibular incisor. A case report. Br J Orthod 1995; 22 : 279-81.   DOI
13 Shafer WG, Maynard KH, Bernet ML. Oral pathology. W.B. Saunders Co: Philadelphia; 1993. p. 40.
14 Stewart DJ. Dilacerate unerupted maxillary central incisors. Br Dent J 1978; 145 : 229-33.   DOI   ScienceOn
15 Jafarzadeh H, Abbott PV. Dilaceration: review of an endodontic challenge. J Endod 2007; 33 : 1025-30.   DOI   ScienceOn
16 Takase H, Toyama M, Eguchi T, Maeda K. Three-dimensional CT images of ectopic calcification in the submandibular region. Oral Radiol 1994; 10 : 65-6.   DOI
17 Tomes J. A course of lectures on Dental Physiology and Surgery: London; 1848 Quoted by Mathis.
18 Malcic A, JuKic S, Brzovic V, Miletic I, Pelivan I, Anic I. Prevalence of root dilaceration in adult dental patients in Croatia. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2006; 102 : 104-9.   DOI   ScienceOn
19 Wheeler RC. Textbook of dental anatomy and physiology. 4th ed. Philadelphia: WB Saunders; 1965. p. 133.
20 Jafarzadeh H and Abbott PV. Dilaceration: Review of an Endodontic Challenge. J Endod 2007; 33 : 1025-30.   DOI   ScienceOn
21 Sawamura T, Minowa K, Abe S, Ohmori K, Nakamura M. Broken fragment of the mandibular third molar tooth in the floor of the mouth. Oral Radiol 1998; 14 : 29-30.   DOI
22 Sawamura T, Minowa K, Abe S, Ohmori K, Nakamura M, Miyasaka K. CT angiography of the head and neck: a report of five cases. Oral Radiol 1998; 14 : 39-49.
23 Cavalcanti MG, Vannier MW. The role of three-dimensional spiral computed tomography in oral metastasis. Dentomaxillofac Radiol 1998; 27 : 203-8.   DOI   ScienceOn
24 Gillespie JE, Auayle AA, Barker G, Isherwood I. Three-dimensional CT reformations in the assessment of congenital and traumatic craniofacial deformities. Br J Oral Maxillofac Surg 1987; 25 : 171-7.   DOI   ScienceOn
25 Fagelman D, Huang AB. Prospective evaluation of lesions of the mandible and maxilla: findings on multiplanar and three-dimensional CT. Am J Roentgenol 1994; 163 : 693-8.   DOI   ScienceOn
26 White S, Pharoah M. Oral Radiology; Principles and Interpretation. 4th ed. St. Louis: Mosby-Year Book Inc; 2000. p. 313-4.
27 Sawamura T, Minowa K, Nakamura M. Impacted teeth in the maxilla: usefulness of 3D Dental-CT for preoperative evaluation. Eur J Radiol 2003; 47 : 221-6.   DOI   ScienceOn
28 Kishi K, Akita K, Nakatsu T, Adachi K, Uemura M, Ochi S, et al. Evaluation of inflammatory diseases of jaw bones with three dimensional CT imaging: comparison with conventional radiography and high-resolution CT. Oral Radiol 1992; 8 : 99-109.