title: Mandibular talon cusps: A Systematic review and data analysis.
abstract: OBJECTIVE
  The purpose of the present study was to evaluate mandibular talon cusps distribution from the comprehensive literature search and proposal of new classification Material and Methods: The study was a review of articles published in the English language from January 1960 to December 2013. The PubMed/MEDLINE/Google Scholor databases were searched electronically using 'talon cusp', 'dens evaginatus', 'anterior teeth', mandible, 'primary dentition' and ' permanent dentition' as search terms in various combinations. The citation lists from the included references were subsequently examined, and a hand search was also performed in an attempt to identify additional reports. The distribution, characteristics, common tooth type, associated dental anomaly and proposal of new classification have been included in final data analysis. Descriptive statistics were carried out using Chi square test (SPSS, version 17).
  
  
  RESULTS
  Overall 37 citations were retrieved from the literature where one was prevalence studies and rest were case reports among those two were duplication. Total 35 articles with 43 patients were reported on mandibular talon cusps. Males were predominantly affected than females (p<0.05). Eight cases (19%) were reported in archeological skulls 81% were clinical reports. Forty cases (93%) were reported in permanent dentition while 7% cases in primary dentition. Lingual mandibular talon are more common than facial type in permanent dentition facial talons (p<0.05). Seven cases (18%) were bilaterally involved. Double tooth (45%) was commonly associated with mandibular talons. Most of the cases reported from Asia and asia derived populations.
  
  
  CONCLUSIONS
  Central incisor is the most common tooth type that effected by talon cusp in permanent dentition and lateral incisor is in primary dentition. Lingual talons are common in mandible. Double tooth common dental anomaly associated with mandibular talon cusp. Most of the case reported from Asia. Talon cusps should be classified as facial, lingual, and facial and lingual types. Key words:Double tooth, permanent dentition, primary dentition, mandibular arch, Talon cusp.
authors.affiliation: Pedodontics and Preventive Dentistry, SDDCH, Parbhoni, Maharashtra, India.
authors.forename: Sreekanth-Kumar
authors.initials: SK
authors.lastname: Mallineni
authors.affiliation: Pedodontics and Preventive Dentistry, SDDCH, Parbhoni, Maharashtra, India.
authors.forename: George-Kurian
authors.initials: GK
authors.lastname: Panampally
authors.affiliation: Orthodontic department, Xiamen Dental Hospital, Xiamen City, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Chen
authors.affiliation: PhD candidate, University of Hong Kong, Hong Kong.
authors.forename: Tian
authors.initials: T
authors.lastname: Tian