Lateral incisor agenesis, canine impaction and characteristics of supernumerary teeth in a South European male population

ABSTRACT

Objective: To assess the prevalence of lateral incisor agenesis impacted canines and supernumerary teeth in a young adult male population. Materials and Methods: The panoramic radiographs of 1745 military students (mean age: 18.6 ± 0.52 years) who attended the Center of Aviation Medicine of the Armed Forces of Greece during the period 1997-2011 were initially analyzed for lateral incisor agenesis by two observers. After exclusion of the known orthodontic cases, a subgroup of 1636 examinees (mean age: 18.6 ± 0.44 years) was evaluated for canine impaction and supernumerary teeth. Results: Twenty-eight missing lateral incisors were observed in 22 military students, indicating an incidence of 1.3% in the investigated population. No lateral incisor agenesis was detected in the mandibular arch. A prevalence rate of 0.8% was determined for canine impaction in the sample of young adults. The majority of impacted teeth (86.7%) were diagnosed in the maxillary arch. Thirty-five supernumerary teeth were observed in 24 examinees (prevalence rate: 1.5%). The ratio of supernumerary teeth located in the maxilla versus the mandible was 2.2:1. The most common type of supernumerary tooth was the upper distomolar. Conclusion: The prevalence of lateral incisor agenesis, canine impaction, and supernumerary teeth ranged from 0.8 to 1.5% in the sample of male Greek military students.

Key words:

Canine impaction - lateral incisor agenesis - prevalence - supernumerary teeth - young male adults

• REFERENCES

• 1 Johannsdottir B, Wisth PJ, Magnusson TE. Prevalence of malocclusion in 6-year-old Icelandic children. Acta Odontol Scand 1997; 55: 398-402
• 2 Muller TP, Hill IN, Peterson AC, Blayney JR. A survey of congenitally missing permanent teeth. J Am Dent Assoc 1970; 81: 101-7
• 3 Rølling SB. Hypodontia of permanent teeth in Danish schoolchildren. Scand J Dent Res 1980; 88: 365-9
• 4 Peck S, Peck L, Kataja M. The palatally displaced canine as a dental anomaly of genetic origin. Angle Orthod 1994; 64: 249-56
• 5 Baccetti T. A controlled study of associated dental anomalies. Angle Orthod 1998; 68: 267
• 6 Kokich Jr VO, Kinzer GA. Managing congenitally missing lateral incisors. Part IQ Canine substitution. J Esthet Restor Dent 2005; 17: 5-10
• 7 Kinzer GA, Kokich Jr VO. Managing congenitally missing lateral incisors. Part II: Tooth-supported restorations. J Esthet Restor Dent 2005; 17: 6-84
• 8 Kinzer GA, Kinzer GA, Kokich Jr VO. Managing congenitally missing lateral incisors. Part III: Single-tooth implants. J Esthet Restor Dent 2005; 17: 202-10
• 9 Bishara SE. Clinical management of impacted maxillary canines. Semin Orthod 1998; 4: 87-98
• 10 Primosch R. Anterior supernumerary teeth-assessment and surgical intervention in children. Pediatr Dent 1981; 3: 204-15
• 11 Stellzig A, Basdra EK, Komposch G. Mesiodentes: Incidence, morphology, etiology. J Orofac Orthop 1997; 58: 144-53
• 12 Mckibben DR, Brearly LJ. Radiographic determination of the prevalence of selected dental anomalies in children. ASDC J Dent Child 1971; 28: 390-8
• 13 Hattab FN, Yassin OM, Rawashdeh MA. Supernumerary teeth: Report of three cases and review of the literature. ASDC J Dent Child 1994; 61: 382-93
• 14 Brabant H. Comparison of the characteristics and anomalies of the deciduous and the permanent dentitions. J Dent Res 1967; 46: 897-902
• 15 Brook AH. Dental anomalies of number, form, and size: their prevalence in British schoolchildren. J Int Assoc Dent Child 1974; 5: 37-53
• 16 Ravn JJ. Aplasia, supernumerary teeth and fused teeth in the primary dentition. An epidemiologic study. Scand J Dent Res 1971; 79: 1-6
• 17 Nazif MM, Ruffalo RC, Zullo T. Impacted supernumerary teeth: a survey of 50 cases. J Am Dent Assoc 1983; 106: 201-4
• 18 Esenlik E, Sayin MO, Atilla AO, Ozen T, Altun C, Baºak F. Supernumerary teeth in a Turkish population. Am J Orthod Dentofacial Orthop 2009; 136: 848-52
• 19 Taylor GS. Characteristics of supernumerary teeth in the primary and permanent dentition. Dent Pract Dent Rec 1972; 22: 203-8
• 20 Mitchell L. Supernumerary teeth. Dent Update 1989; 16: 65-9
• 21 Högström A, Andersson L. Complications related to surgical removal of anterior supernumerary teeth in children. ASDC J Dent Child 1987; 54: 341-3
• 22 Niswander JD, Sujaku C. Congenital anomalies of teeth in Japanese children. Am J Phys Anthropol 1963; 21: 569-74
• 23 Davis PJ. Hypodontia and hyperdontia of permanent teeth in Hong Kong schoolchildren. Community Dent Oral Epidemiol 1987; 15: 218-20
• 24 Tay F, Pang A, Yuen S. Unerupted maxillary anterior supernumerary teeth: Report of 204 cases. ASDC J Dent Child 1984; 51: 289-94
• 25 Russell KA, Folwarczna MA. Mesiodens - diagnosis and management of a common supernumerary tooth. J Can Dent Assoc 2003; 69: 362-6
• 26 Sedano HO, Gorlin R. Familial occurrence of mesiodens. Oral Surg Oral Med Oral Pathol 1969; 27: 360-2
• 27 Marya CM, Kummar BR. Familial occurrence of mesiodentes with unusual findings: Case reports. Quintessence Int 1998; 29: 49-51
• 28 Rajab LD, Hamdan MAM. Supernumerary teeth: review of the literature and a survey on 152 cases. Int J Paediatr Dent 2002; 12: 244-54
• 29 Fekonja A. Hypodontia in orthodontically treated children. Eur J Orthod 2005; 27: 457-60
• 30 Silava Meza RS. Radiographic assessment of congenitally missing teeth in orthodontic patients. Int J Paediatr Dent 2003; 13: 112-6
• 31 Sisman Y, Uysal T, Gelgor IE. Hypodontia. Does the prevalence and distribution pattern differ in orthodontic patients?. Eur J Dent 2007; 1: 167-73
• 32 Stamatiou J, Symons AL. Agenesis of the permanent lateral incisor: distribution, number and sites. J Clin Pediatr Dent 1991; 15: 244-6
• 33 Pinho T, Tavares P, Maciel P, Pollmann C. Developmental absence of maxillary lateral incisors in the Portuguese population. Eur J Orthod 2005; 27: 443-9
• 34 Fardi A, Kondylidou-Sidira A, Bachour Z, Parisis N, Tsirlis A. Incidence of impacted and supernumerary teeth-a radiographic study in a North Greek population. Med Oral Patol Oral Cir Bucal 2011; 16: e56-61
• 35 Yavuz MS, Aras MH, Büyükkurt MC, Tozoglu S. Impacted mandibular canines. J Contemp Dent Pract 2007; 8: 78-85
• 36 Bishara SE. Impacted maxillary canines: a review. Am J Orthod Dentofacial Orthop 1992; 101: 159-71
• 37 Shapira Y, Kuftinec MN. Early diagnosis and interception of potential maxillary canine impaction. J Am Dent Assoc 1998; 129: 1450-4
• 38 Williams BHJ. Diagnosis and prevention of maxillary cuspid impaction. Angle Orthod 1981; 51: 30-40
• 39 Ericson S, Kurol J. Early treatment of palatally erupting maxillary canines by extraction of the primary canines. Eur J Orthod 1988; 10: 283-95
• 40 Salcido-Garcia JF, Ledesma-Montes C, Hernandez-Florez F, Perez D, Garcés-Ortiz M. Frequency of supernumerary teeth in Mexican population. Med Oral Patol Oral Cir Bucal 2004; 9: 403-9
• 41 Peker I, Kaya E, Darendeliler-Yaman S. Clinical and radiographical evaluation of non-syndromic hypodontia and hyperdontia in permanent dentition. Med Oral Patol Oral Cir Bucal 2009; 14: e393-7
• 42 Fernández Montenegro P, Valmaseda Castellón E, Berini Aytés L, Gay Escoda C. Retrospective study of 145 supernumerary teeth. Med Oral Patol Oral Cir Bucal 2006; 11: e339-44
• 43 Lecco-Berrocal MI, Martin-Morales JF, Martinez-Gonzalez JM. An observational study of the frequency of supernumerary teeth in a population of 2000 patients. Med Oral Patol Oral Cir Bucal 2007; 12: e134-8
• 44 Roychoudhury A, Gupta Y. Parkash Mesiodens: a retrospective study of fifty teeth. J Indian Soc Pedod Prev Dent 2000; 18: 144-6
• 45 Solares R, Romero MI. Supernumerary premolars: a literature review. Pediatr Dent 2004; 26: 450-8
• 46 Rubenstein LK, Lindauer SJ, Isaacson RJ, Germane N. Development of supernumerary premolars in an orthodontic population. Oral Surg Oral Med Oral Pathol 1991; 71: 392-5
• 47 Grimanis GA, Kyriakides AT, Spyropoulos ND. A survey on supernumerary molars. Quintessence Int 1991; 22: 989-95
• 48 Saini T, Keene Jr JJ, Whetten J. Radiographic diagnosis of supernumerary premolars: case reviews. ASDC J Dent Child 2002; 69: 184-90
• 49 Craig CE. Abnormalities in number and in the eruption path of teeth. Dent Clin North Am 1968; 6: 435-47
• 50 Price C, Hoggins GS. A category of supernumerary premolar teeth. Br Dent J 1969; 126: 224-8