The prevalence and associations of radiographic diagnostic signs indicating possible pre-eruptive canine ectopia: The results of a mixed dentition radiographic survey
DOI:
https://doi.org/10.17159/sadj.v78i01.15754Keywords:
ectopically, angulationAbstract
Maxillary canine ectopia is an anomaly of the mixed dentition which can and should be diagnosed early and treated interceptively wherever possible. Various radiographic markers have been associated with canine ectopia, and these are significant aids to a thorough clinical examination, in order to diagnose ectopia. A cross sectional study was carried out on a sample of 465
mixed dentition panoramic radiographs in order to establish the prevalence of maxillary canine ectopia according to a
set of radiographic markers. The sample of radiographs included patients with dental ages between 10 and 12 years of age. 404 radiographs displayed signs of canine ectopia according to the markers studied. Non- resorption of the root of the primary canine was the most common marker (63%) found. This was followed by overlap in 25.2% of cases, whilst increased angulation of the developing canine was the least prevalent (4.7%). Non-resorption showed a statistically significant association with distal overlap and overlap over the pulp chamber. Increased angulation was significantly associated with non-resorption in all degrees of overlap. Unilateral increased size of the mandibular canine showed a significant association with cases displaying a mesial overlap (p= 0.027). Dental age is an important aspect of predicting canine ectopia. Non-resorption of the roots of the primary canine must be viewed with caution at the dental age of 10 years. Enlargement of the mandibular canine maybe viewed as a potential early warning sign for maxillary canine ectopia.
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Hudson APG, Harris AMP, Mohamed N. Maxillary canine management in the preadolescent: A guide for general practitioners. SADJ. 2010; 65(8): 366-370.
Becker A. Palatally impacted canines: In: Orthodontic treatment of impacted teeth. Martin Dunitz Ltd, 1998: 85-101.
Nikiforuk G. Ectopic Eruption: Discussion and clinical report. J Ont Dent Assoc. 1948; 25:243–246.
Proffit WR, Fields HW and Sarver DM. The later stages of development. In: Contemporary Orthodontics. Mosby Elsevier, 2007: 63-94.
Duterloo HS. Development and chronology of the dentition and Abnormalities of dentitional development. In: An atlas of dentition in childhood, orthodontic diagnosis and panoramic radiology. Wolfe Publishing Limited, 1991: 69-96, 129-196.
Warford JH, Grandhi RK, Tira DE. Prediction of maxillary canine impaction using sectors and angular measurement. Am J Orthod Dentofac Orthop. 2003; 124(6): 651-655. DOI: https://doi.org/10.1016/S0889-5406(03)00621-8
Fernandez E, Bravo LA, Canteras M. Eruption of the permanent upper canine: A radiological study. Am J Orthod Dentofac Orthop. 1998; 113(4): 414-420. DOI: https://doi.org/10.1016/S0889-5406(98)70251-3
Ericson S, Kurol J. Early treatment of palatally erupting maxillary canines by extraction of the primary canines. Eur J Orthod. 1988a; 10(4): 283-295. DOI: https://doi.org/10.1093/ejo/10.4.283
Lindauer SJ, Rubenstein LK, Hang WM, Andersen WC, Isaacson RJ. Canine impaction identified early with panoramic radiographs. JADA. 1992; 123(3): 91-7. DOI: https://doi.org/10.14219/jada.archive.1992.0069
Ericson S, Kurol J. Resorption of maxillary lateral incisors caused by ectopic eruption of the canines. A clinical and radiographic analysis of predisposing factors. Am J Orthod Dentofac Orthop. 1988b; 94(6): 503-13. DOI: https://doi.org/10.1016/0889-5406(88)90008-X
Power SM, Short MB. An investigation into the response of palatally displaced canines to the removal of deciduous canines and an assessment of factors contributing to favourable eruption. Br J Orthod. 1993; 20(3): 217- 23. DOI: https://doi.org/10.1179/bjo.20.3.215
Baccetti T, Leonardi M, Armi P. A randomized clinical study of two interceptive approaches to palatally displaced canines. Eur J Orthod. 2008; 30(4): 381-385. DOI: https://doi.org/10.1093/ejo/cjn023
Sajnani AK, King NM. Early prediction of maxillary canine impaction from panoramic radiographs. Am J Orthod Dentofac Orthop. 2012; 142(1): 45-51. DOI: https://doi.org/10.1016/j.ajodo.2012.02.021
White SC, Pharaoh MJ. Oral radiology: Principles and interpretation. 6th edition. Mosby Elsevier, 2010; 295-304.
Peck S, Peck L, Kataja M. The palatally displaced canine as a dental anomaly of genetic origin. Ang Orthod. 1994; 64(4): 249-256.
Van der Linden PGM, Duterloo HS. Development of the Human Dentition: An Atlas. Harper and Row, 1976: 75-212.
Lappin M. Practical management of the impacted maxillary cuspid. Am J Orthod Dentofac Orthop. 1951; 37(10): 769-78. DOI: https://doi.org/10.1016/0002-9416(51)90048-6
Howard RD. The unerupted incisor. A study of the postoperative eruptive history of incisors delayed in their eruption by supernumerary teeth. Dent Pract Dent Rec. 1967; 17(9): 332-41.
Ericson S, Bjerklin K, Falahat B. Does the canine dental follicle cause resorption of permanent incisor roots? A computed tomographic study of erupting maxillary canines. Angle Orthod. 2002; 72(2): 95-104.
Hudson APG, Harris AMP, Mohamed N. The mixed dentition pantomogram: A valuable dental development assessment tool for the dentist. SADJ. 2009; 64(10): 480-483.
Mason C, Papadakou P, Roberts GJ. The radiographic localization of impacted maxillary canines: a comparison of methods. Eur J Orthod. 2001; 23(1): 25-34. DOI: https://doi.org/10.1093/ejo/23.1.25
Becker A, Smith P, Behar R. The incidence of anomalous maxillary lateral incisors in relation to palatally displaced cuspids. Angle Orthod. 1981; 51(1): 24-29.
Becker A, Zilbermann Y, Tsur B. Root length of lateral incisors adjacent to palatally displaced maxillary cuspids. Angle Orthod. 1984; 54(3): 218-225.
Baccetti T.A controlled study of associated dental anomalies. Angle Orthod. 1998a; 68(3): 267-274.
Nagpal A, Pai KM, Sharma G. Palatal and labially impacted maxillary canine associated dental anomalies: A comparative study. J Contemp Dent Pract. 2009; 10(4): 1-11. DOI: https://doi.org/10.5005/jcdp-10-4-67
Shapira Y, Kuftinec MM. Early diagnosis and interception of potential maxillary canine impaction. JADA. 1998; 129(10): 1450-1454. DOI: https://doi.org/10.14219/jada.archive.1998.0080
Liuk IW, Olive RJ, Griffin M, Monsour P. Associations between palatally displaced canines and maxillary lateral incisors. Am J Orthod Dentofac Orthop. 2013; 143(5): 622-632. DOI: https://doi.org/10.1016/j.ajodo.2012.11.025
Hudson APG, Harris AMP, Mohamed N. Early identification and management of mandibular canine ectopia. SADJ. 2011; 66(10): 462-467.
Thilander B, Jakobsson SO. Local factors in impaction of maxillary canines. Acta Odontol Scand. 1968; 26(2): 145-168. DOI: https://doi.org/10.3109/00016356809004587
Hurme VO. Ranges in normalcy in the eruption of permanent teeth. J Dent Child. 1949; 16(2): 11-5.
Taranger J, Lichtenstein H, Svennberg-Redegren I. Dental development from birth to 16 years. Acta Paediatrica. 1976; 65: 83-97. DOI: https://doi.org/10.1111/j.1651-2227.1976.tb14763.x
Davidson LE, Rodd HD. Interrelationship between dental age and chronological age in Somali children. Community Dent Health. 2001; 18(1): 27-30.
Chalakkal P, Thomas AM and Chopra S. Displacement, location, and angulation of unerupted permanent maxillary canines and absence of canine bulge in children. Am J Orthod Dentofac Orthop. 2011; 139(3): 345-350. DOI: https://doi.org/10.1016/j.ajodo.2009.03.044
Rimes RJ, Mitchell CNT, Willmot DR. Maxillary incisor root resorption in relation to the ectopic canine: A review of 26 patients. Eur J Orthod. 1997; 19(1): 79-84. DOI: https://doi.org/10.1093/ejo/19.1.79
Falahat B, Ericson S, D’Amico RM, Bjerklin K. Incisor root resorption due to ectopic maxillary canines: A long-term radiographic follow-up. Angle Orthod. 2008; 78(5): 778-785. DOI: https://doi.org/10.2319/071007-320.1
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