Mandibular talon cusp in primary lateral incisor: a rare case report

Clinical Orodental Anomalies in Taiwanese Children under Age Six: a Study Based on the 1995-1997 National Dental Survey

There are few published studies that report the prevalence of intraoral anomalies for young children. The purpose of this study was to investigate the prevalence and distribution of several congenital oral and paraoral anomalies in Taiwanese children under age six. Twenty-five cities and townships were randomly sampled in different areas of Taiwan using the stratified method. These cities and townships represent cross-sectional samples of geographic locations and socioeconomic levels. A total of 981 Taiwanese children under age six were examined with dental mirrors and explorers as part of the national dental survey. The results of this survey indicated an 11.31% prevalence of geographic tongue. This number is higher than that reported in studies previously performed in different countries. The occurrence of double teeth in primary dentition was found to be 2.14%. Ankyloglossia had a frequency of 1.22%, and primary talon cusp a frequency of 0.61%. Seven (0.71%) children exhibited fissured tongues. Thirteen (1.33%) cases of hypodontia were found. These values were different from those reported in several other countries, which may be attributed to differences in the ethnic and racial composition of the population studied.

Talon Cusp Type I: Restorative Management

The teeth are formed during intrauterine life (i.e., gestation) during the odontogenesis stage. During this period, the teeth move until they enter the oral cavity. This course covers various stages of dental development, namely, initiation, proliferation, histodifferentiation, morphodifferentiation, and apposition. The talon cusp is an anomaly that occurs during morphodifferentiation, and this anomaly may have numerous adverse clinical effects on oral health. The objective of this study was to report a case of “Talon Cusp Type I” and to discuss diagnostic methods, treatment options for this anomaly, and the importance of knowledge of this morphological change among dental professionals so that it is not confused with other morphological changes; such knowledge is required to avoid unnecessary surgical procedures, to perform treatments that prevent caries and malocclusions as well as enhancing aesthetics, and to improve the oral health and quality of life of the patient.

Mandibular talon cusps: A Systematic review and data analysis

OBJECTIVES

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.