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References

Mitchell WH. Case report. Dental Cosmos. 1892; 34
Davis PJ, Brook AH. The presentation of talon cusp: diagnosis, clinical features, associations and possible aetiology. Br Dent J. 1986; 160:(3)84-88
Buenviaje TM, Rapp R. Dental anomalies in children: a clinical and radiographic survey. ASDC J Dent Child. 1984; 51:(1)42-46
Chawla HS, Tewari A, Gopalakrishnan NS. Talon cusp – a prevalence study. J Indian Soc Pedod Prev Dent. 1983; 1:(1)28-34
Mellor JK, Ripa IW. Talon cusp: a clinically significant anomaly. Oral Surg Oral Med Oral Pathol. 1970; 29:225-228
Hattab FN, Yassin OM, al-Nimri KS. Talon cusp in permanent dentition associated with other dental anomalies: review of literature and reports of seven cases. ASDC J Dent Child. 1996; 63:(5)368-376
Sumer AP, Zengin AZ. An unusual presentation of talon cusp: a case report. Br Dent J. 2005; 199:(7)429-430
Ekambaram M, Yiu CK, King NM. An unusual case of double teeth with facial and lingual talon cusps. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008; 105:(4)e63-67
Hegde S, Kumar BR. Mandibular talon cusp: report of two rare cases. Int J Paediatr Dent. 1999; 9:(4)303-306
Chen RJ, Chen HS. Talon cusp in the primary dentition. Oral Surg Oral Med Oral Pathol. 1986; 62:67-72
Gardner DG, Girgis SS. Talon cusps: a dental anomaly in the Rubinstein-Taybi syndrome. Oral Surg Oral Med Oral Pathol. 1979; 47:(6)519-521
Goldstein E, Medina JL. Mohr syndrome or oral-facial digital II: report of two cases. J Am Dent Assoc. 1974; 89:377-382
Dash JK, Sahoo PK, Das SN. Talon cusp associated with other dental anomalies: a case report. Int J Paediatr Dent. 2004; 14:(4)295-300
Dayal PK, Mani NJ, Verma PK. Talon cusp: a review and case report. J Dent. 1980; 8:(1)85-87
Lomçali G, Hazar S, Altinbulak H. Talon cusp: report of five cases. Quintessence Int. 1994; 25:(6)431-433
Gündüz K, Celenk P. Survey of talon cusps in the permanent dentition of a Turkish population. J Contemp Dent Pract. 2008; 9:(5)84-91
Rantanen AV. Talon cusp. Oral Surg Oral Med Oral Pathol. 1971; 32:(3)398-400
Brin I, Becker A, Shalhav M. Position of the maxillary permanent canine in relation to anomalous or missing lateral incisors: a population study. Eur J Orthod. 1986; 8:(1)12-16
Peck S, Peck L, Kataja M. The palatally displaced canine as a dental anomaly of genetic origin. Angle Orthod. 1994; 64:(4)249-256
Peck L, Peck S, Attia Y. Maxillary canine-first premolar transposition, associated dental anomalies and genetic basis. Angle Orthod. 1993; 63:(2)99-109
Nadkarni UM, Munshi A, Damle SG. Unusual presentation of talon cusp: two case reports. Int J Paediatr Dent. 2002; 12:(5)332-335
Mader CL. Mandibular talon cusp. J Am Dent Assoc. 1982; 105::651-653
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The talon cusp – an uncommon anomaly

From Volume 39, Issue 4, May 2012 | Pages 262-264

Authors

J Seehra

BDS(Hons), MFDS RCS, MSc, MOrth RCS(Eng)

Senior Registrar in Orthodontics, Department of Orthodontics and Paediatrics, Guy's and St Thomas's NHS Foundation Trust, Floor 22, Guy's Tower London SE1 9RT

Articles by J Seehra

F Coutts

BDS, MSc, FDS RCS(Eng), MOrth RCS(Eng)

Consultant Orthodontist, Maxillofacial Unit, East Kent Hospitals University NHS Foundation Trust, William Harvey Hospital, Kennington Road, Willesborough, Ashford, Kent TN24 0LZ, UK

Articles by F Coutts

Abstract

Talon cusps are an uncommon dental anomaly of odontogenic origin. Talon cusps can also present with other dental anomalies, however these have been infrequently reported in the literature. The following is a report of two cases in which talon cusps were detected in combination with two distinct dental anomalies: an ectopic canine and transposition.

Clinical Relevance: It is important to recognize that the management of talon cusps may require a multidisciplinary approach and should be considered during treatment planning.

Article

A talon cusp is a rare dental anomaly of odontogenic origin first reported by Mitchell in 1892.1 The prevalence has been reported at 0.012%,2 0.17%3 and 7.7%.4 Davies and Brook2 defined a talon cusp as:

…an additional cusp that prominently projects from the lingual surface of primary or permanent anterior teeth, is morphologically well-delineated, and extends at least half the distance from the cement-enamel junction to the incisal edge.

The resemblance to an eagle's talon is a reflection of the shape of this anomaly.5

Both genetic and environmental factors have been suggested as aetiological factors. The reported incidence is higher in males than females. Typically, talon cusps can present on the palatal or lingual aspect of the incisors, and occur more frequently in the maxillary dentition, with the maxillary lateral incisor the most commonly affected tooth.2,5,6 Labial talon cusps have, however, also been reported.7,8 Talon cusps can also be found in both permanent and primary teeth9,10 and associated with syndromes such as Sturge-Weber,10 Rubinstein-Taybi11 and Mohr syndromes.12

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