The prevalence of peg-shaped and missing lateral incisors with maxillary impacted canines
Abstract
Abstract
Background/Aim. Many authors find that impacted maxillary canines is associated with missing and peg-shaped lateral incisor. The aim of this study was to examine the prevalence of peg-shaped and missing lateral incisor in subjects with impacted maxillary canines, and compare the size of maxillary lateral incisor on the side with palatally impacted canines and on the opposite side of the jaw where there is no impaction. Methods. The study included 64 patients with 80 impacted maxillary canines (23 males and 41 females, mean age 16.3). For each maxillary unerupted canine, precisely correct localization and classification into groups was done. We analyzed the morphology of the lateral incisor (normal, atypical) and frequency of missing of lateral maxillary incisors with canine impaction. Then, from the mentioned examinees sample with the maxillary canine teeth, a subgroup was formed. The criteria for selection were those with unilateral palatally impacted canines (33 subjects, 22 females and 11 males, mean age 17.8 years). The linear variables of the maxillary lateral incisor were measured by using digital measurements tools. The t-test was used to test the differences between the groups. Results. Normal morphology of the lateral incisors was found in 72% of the subjects with the impacted canines, 11.2% of the subjects had the peg-shaped lateral incisors, 6% had a bilateral and 4% had unilateral deficiency of lateral incisors. In the subgroup of the patients with unilateral palatal impaction, the middle value of the length of the lateral incisors was 1.9 mm shorter and the middle value of the width of the lateral incisors was smaller by 0.9 mm when comparing to the control group. Conclusion. The frequency of the deficiency of lateral incisors was statistically significantly higher in the group with palatal canine impaction. The maxillary lateral incisors on the side with palatally impacted canines were smaller than those on the side where there was no impaction.
References
REFERENCES
Broadbent BH. Ontogenic development of occlusion. Angle Or-thod 1941; 11(4): 223‒41.
Hitchin AD. The impacted maxillary canine. Br Dent J 1956; 100: 1‒12.
Jacoby H. The etiology of maxillary canine impactions. Am J Or¬thod 1983; 84(2): 125‒32.
Becker A. Aetiology of maxillary canine impactions. Am J Or-thod 1984; 86(5): 437‒8.
Becker A, Smith P, Behar R. The incidence of anomalous maxil-lary lateral incisors in relation to palatally-displaced cuspids. Angle Orthod 1981; 51(1): 24‒9.
Brin I, Solomon Y, Zilberman Y. Trauma as a possible etiologic factor in maxillary canine impaction. Am J Orthod Dentofacial Orthop 1993; 104(2): 132‒7.
Miller BH. The influence of congenitally missing teeth on the eruption of the upper canine. Dent Pract Dent Rec 1963; 13: 497‒504.
Bass TB. Observations on the misplaced upper canine tooth. Dent Pract Dent Rec 1967; 18(1): 25‒33.
Oliver RG, Mannion JE, Robinson JM. Morphology of the maxil-lary lateral incisor in cases of unilateral impaction of the max-illary canine. Br J Orthod 1989; 16(1): 9‒16.
Brin I, Becker A, Shalhav M. Position of the maxillary perma-nent canine in relation to anomalous or missing lateral incisors: A population study. Eur J Orthod 1986; 8(1): 12‒6.
Polder BJ, Van't Hof MA, Van der Linden FP, Kuijpers-Jagtman AM. A meta-analysis of the prevalence of dental agenesis of permanent teeth. Community Dent Oral Epidemiol 2004; 32(3): 217‒26.
Becker A, Chaushu S. Dental age in maxillary canine ectopia. Am J Orthod Dentofacial Orthop 2000; 117(6): 657‒62.
Chaushu S, Sharabi S, Becker A. Dental morphologic characteris¬tics of normal versus delayed developing dentitions with pala¬tally displaced canines. Am J Ortod Dentofacial Orthop 2002; 121(4): 339‒46.
Oliver T. Palatally displaced canines: The relationship to dental maturation, vertical facial morphology and dental anomalies of genetic origin. St Lucia, Queensland, Australia: University of Queensland; 2008.
Leifert S, Jonas IE. Dental anomalies as a microsymptom of pa-la¬tal canine displacement. J Orofac Orthop 2003; 64(2): 108‒20. (English, German)
Kim JH, Choi NK, Kim SM. A Retrospective Study of Associa-tion between Peg-shaped Maxillary Lateral Incisors and Dental Anomalies. J Clin Pediatr Dent 2017; 41(2): 150‒3.
Langberg BJ, Peck S. Tooth-size reduction associated with oc-cur¬rence of palatal displacement of canines. Angle Orthod 2000; 70(2): 126‒8.
Becker A, Zilberman Y, Tsur B. Root length of lateral incisors adja¬cent to palatally-displaced maxillary cuspids. Angle Orthod 1984; 54(3): 218‒25.
Zilberman Y, Cohen B, Becker A. Familial trends in palatal ca-nines, anomalous lateral incisors, and related phenomena. Eur J Orthod 1990; 12(2): 135‒9.
Mucedero M, Ricchiuti MR, Cozza P, Baccetti T. Prevalence rate and dentoskeletal features associated with buccally displaced maxillary canines. Eur J Orthod 2013; 35(3): 305‒9.
Mercuri E, Cassetta M, Cavallini C, Vicari D, Leonardi R, Barbato E. Skeletal features in patient affected by maxillary canine im¬paction. Med Oral Patol Oral Cir Bucal 2013; 18(4): e597‒602.
Sajnani AK, King NM. Dental anomalies associated with buc-cally- and palatally-impacted maxillary canines. J Investig Clin Dent 2014; 5(3): 208‒13.
Citak M, Cakici EB, Benkli YA, Cakici F, Bektas B, Buyuk SK. Dental anomalies in an orthodontic patient population with maxillary lateral incisor agenesis. Dental Press J Orthod 2016; 21(6): 98‒102.
Lai CS, Bornstein MM, Mock L, Heuberger BM, Dietrich T, Katsaros C. Impacted maxillary canines and root resorptions of neighbouring teeth: a radiographic analysis using cone-beam computed tomography. Eur J Orthod 2013; 35(4): 529‒38.
Garib DG, Alencar BM, Lauris JR, Baccetti T. Agenesis of maxil¬lary lateral incisors and associated dental anomalies. Am J Or¬thod Dentofacial Orthop 2010; 137(6): 732.e1-6; discussion 732–3.
Liu DG, Zhang WL, Zhang ZY, Wu YT, Ma XC. Localization of impacted maxillary canines and observation of adjacent incisor resorption with cone-beam computed tomography. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2008; 105(1): 91‒8.
Scheied RC, Weiss G, Woelfel JB. Woelfel΄s dental anatomy. 8th ed. Philadelphia: Wolters Kuwer Health/Lippincott Williams & Wilkins; 2012.
Liuk IW, Olive RJ, Griffin M, Monsour P. Maxillary lateral incisor morphology and palatally displaced canines: A case-controlled cone-beam volumetric tomography study. Am J Orthod Den¬tofacial Orthop 2013; 143(4): 522‒6.
Eslami E, Barkhordar H, Abramovitch K, Kim J, Masoud MI. Cone-beam computed tomography vs conventional radiogra-phy in visualization of maxillary impacted-canine localization: A systematic review of comparative studies. Am J Orthod Dentofacial Orthop 2017; 151(2): 248‒58.