Talon Cusp Research Articles

Frequency of Developmental Dental Anomalies in the Indian Population

To evaluate the frequency of developmental dental anomalies in the Indian population. This prospective study was conducted over a period of 1 year and comprised both clinical and radiographic examinations in oral medicine and radiology outpatient department. Adult patients were screened for the presence of dental anomalies with appropriate radiographs. A comprehensive clinical examination was performed to detect hyperdontia, talon cusp, fused teeth, gemination, concrescence, hypodontia, dens invaginatus, dens evaginatus, macro- and microdontia and taurodontism. Patients with syndromes were not included in the study. Of the 20,182 patients screened, 350 had dental anomalies. Of these, 57.43% of anomalies occurred in male patients and 42.57% occurred in females. Hyperdontia, root dilaceration, peg-shaped laterals (microdontia), and hypodontia were more frequent compared to other dental anomalies of size and shape. Dental anomalies are clinically evident abnormalities. They may be the cause of various dental problems. Careful observation and appropriate investigations are required to diagnose the condition and institute treatment.

Prevalence of talon cusps in Jordanian permanent teeth: a radiographic study

BackgroundThe aim of the study is to investigate the prevalence of talon cusps in a sample of Jordanians dental patients and their distribution among different types of teeth.MethodsThe data were collected from radiographic examination of 3,024 periapical films showing 9,377 teeth from a random sample of 1,660 patients. A tooth was considered having talon cusp if there was a V-shape radiopaque structure superimposed the tooth structure.ResultsTalon cusps were detected in 52 teeth (tooth prevalence = 0.55%). Maxillary canines were the most commonly affected teeth (46% of cases), followed by maxillary lateral incisor teeth (39% of cases) and maxillary central incisors teeth (15% of cases). Teeth with talon cusps were found in 40 subjects (person prevalence = 2.4%). Bilateral talon cusps were seen in 12 patients.ConclusionsAttention should be paid to the presence of talon cusp and the treatment problems associated with it.

Unusual case of a talon cusp on a supernumerary tooth in association with a mesiodens.

Talon cusp is an accessory cusp similar to a projection, extending from the cingulum or cemento-enamel junction to the incisal edge. It occurs on labial or palatal surfaces of primary or permanent anterior teeth in both arches. This accessory cusp can occur as an isolated entity or in association with other dental anomalies. Occurrence of a talon cusp on supernu-merary teeth is rare and uncommon. This paper reports an unusual case of a talon cusp on a supernumerary tooth in association with mesiodens.

A rare case of multiple talon cusps in three siblings

Talon cusp is an uncommon anomaly, whose etiology may be disturbances in the morphodifferentiation stage. Dens in dente is also a rare anomaly that is challenging in clinic as it may cause pulp necrosis or periapical lesions due to the communication with the oral cavity. This article reports multiple talon cusps on permanent maxillary and mandibular incisors and molars in 3 siblings. A 9-year-old boy presented with structures like nodules, shaped as cylindrical cones with a sharp point or a raindrop with deep developmental fissures on the palatal aspect of the maxillary central incisors, lingual aspect of the mandibular central incisors and labial aspect of both mandibular first molars. The buccal surface of the maxillary right central incisor was also affected. Some of them exhibited dens in dente. His 15-year-old sister had prominent talon cusps on the palatal surface of maxillary central incisors and buccal surface of the mandibular first molars and mandibular left second molar. His 7-year-old brother had only one trace talon on the maxillary left central incisor. No syndrome was identified in the patients. In conclusion, genetic inheritance may be a causative factor in talon cusp.

Multi-lobed mesiodens with a palatal talon cusp: a rare case report

Mesiodens is a midline supernumerary tooth commonly seen in the maxillary arch and the talon cusp is a rare dental developmental anomaly seen on the lingual surface of anterior teeth. This paper presents a rare clinical case of development of talon cusp in a mesiodens with multiple lobes, which interfered with both occlusion and appearance of an 11-year-old patient. During clinical interview, the patient reported difficulty on mastication. Clinical and radiographic examination revealed that a supernumerary tooth with completely formed root was causing an occlusal interference. The supernumerary tooth was diagnosed as multi-lobed mesiodens associated with a palatal talon cusp. The treatment plan consisted in the extraction of the supernumerary tooth followed by orthodontic treatment for diastema closure and tooth alignment.

A Talon Cusp on Fused Teeth Associated with Hypodontia: Report of a Unique Case

Fusion and talon cusps are rare developmental dental anomalies affecting both primary and permanent dentitions. Talon cusps normally occur on the palatal surface of permanent maxillary incisors, while fused teeth are more common in the primary anterior dentition. An understanding of these dental anomalies and their associated problems are important to provide prophylactic measures, thereby preventing or minimizing possible complications. This paper presents a unique case of fused mandibular permanent incisors with a lingual talon cusp associated with hypodontia of an adjacent tooth.

Co-occurrence of bilateral coronal Dens invaginatus and true Talon

Talon cusp and Dens invaginatus are tooth shape anomalies, their co-occurrence in a single tooth is rare. They are often incidental findings found during routine clinical and radiographic examinations. The patient is usually unaware of this condition unless detected radiographically. As maxillary lateral incisors are the teeth most susceptible to coronal invaginations and talon cusp these teeth should be investigated thoroughly. Early diagnosis is mandatory to instigate preventive treatment otherwise it might result in pulpal involvement necessitating more definitive treatment. We present here a case of bilateral coronal Dens invaginatus and true Talon treated prophylactically.

An Uncommon Dental Anomaly: Talon Cusp

ABSTRACT Talon cusp is an uncommon dental anomaly presenting as an accessory cusp. It is seen in both deciduous and permanent dentition and on lingual and facial surfaces of anterior teeth. It can occur unilaterally or bilaterally. The incidence of occurrence is more in maxillary teeth. It is usually asymptomatic but can pose functional and esthetic problems. This article presents the review of talon cusp in relation to its definition, etiopathogenesis, prevalence, clinical and histological findings, clinical implications, radiographic findings, classification and management aspects.

Endodontic and Esthetic Management of Maxillary Lateral Incisor Fused to a Supernumerary Tooth Associated with a Talon Cusp by Using Spiral Computed Tomography as a Diagnostic Aid: A Case Report

The aim of this case report is to present an endodontically and esthetically managed maxillary left lateral incisor fused to a supernumerary tooth associated with a talon cusp. This case report describes a multidisciplinary approach involving endodontic and restorative considerations for a successful, functional, and esthetic rehabilitation of the fused tooth. In the present case, we have used spiral computed tomography for better understanding of the complicated root canal morphology of the fused tooth and successful management of this rare case.

Poster Session P18/Syndromes and Genetics/Oral Medicine and Pathology

This investigation sought to identify the common manifestations of KBG syndrome in the literature and to determine the major oral abnormalities in a 12-year-old Chinese boy. PUBMED search, using the keyword phrase "KBG syndrome," produced 20 articles. Due to the disparities in the quality of evaluations in the reports, any physical feature that was not discussed was assumed to be absent. Of the 54 cases, including the present case, 36 (67%) were males. Mental retardation or global developmental delay was reported in 42 (78%) cases, while 46 (85%) exhibited shortness of stature. Oral features occurred in 53 (98%) cases; macrodontia was present in 49 (96%) cases; the present case was the only one with hyperdontia and a talon cusp. Other features were craniofacial anomalies, followed by abnormalities of the nose, hand, mouth, eyes, eyebrows, philtrum, costovertebrae, ears, and, less frequently, low hairline and lower extremity abnormalities. Cardinal features of KBG syndrome include facial dysmorphism, short stature, skeletal anomalies, and mild developmental delay; intraorally, macrodontia of the maxillary central incisors occurs in most cases. This is the first known report of KBG syndrome in a Chinese subject and the only case with hyperdontia and a talon cusp.

Labial talon cusps: a South American archaeological case in the deciduous dentition and review of a rare trait

Talon cusps are rarely reported developmental anomalies of the anterior dentition. They occur most commonly on the lingual aspect of the tooth but may also affect the labial aspect, and double (lingual and labial) talon cusps have also been reported. This study presents the first case of a labial talon cusp affecting the maxillary deciduous central incisor to be described in the literature. It was identified in a child skeleton from the archaeological site of Borgatta, north-west Argentina. The aetiology of talon cusps remains uncertain, with a combination of both genetic and environmental factors hypothesised to be involved. As a number of cases of labial talon cusps have now been published, this study presents a survey of cases in the literature to characterise the expression of this trait, and compares it with that of lingual talon cusps. The aim is to offer further insight into the relationship between lingual and labial talon cusps and their aetiologies. Differences between these traits in sex distribution, frequency of maxillary and mandibular cases, and the most commonly affected teeth are demonstrated.

Talon cusp in Malay primary teeth: expression, frequency, covariates and treatment needs

The expression and frequency of a morphological variant of maxillary anterior teeth known as the ‘talon cusp’ is reported in a sample of 142 Malay schoolchildren from Yogyakarta, Indonesia. The trait exhibits variable and unilateral expression in the maxillary right lateral incisors of three children, yielding a frequency of 2.1%. Trait expression was graded in nature with males exhibiting larger talon cusps (Type 1, full talon; and Type 2, large semitalon) than the affected female (Type 2, small semitalon). A comprehensive analysis of the Malay primary dentition was conducted to detect possible morphometric covariation with talon cusp. Individuals with talon cusp are not significantly different from unaffected individuals in buccolingual crown size or in primary molar crown morphology. However, two of three individuals with talon cusp possess maxillary and mandibular primary canine teeth with an unusual conical crown structure. While talon cusp has previously been reported to co-occur with supernumerary teeth, including mesiodens, this is the first report of an association with cone-shaped primary canines. We address the infrequent expression of talon cusp in primary maxillary lateral incisor teeth, the presence of talon cusp in earlier and prehistoric populations, the analogous anthropological trait known as tuberculum dentale, and the treatment needs of patients with talon.

Bilateral fusion of permanent mandibular incisors with Talon′s cusp: A rare case report

Whenever nature diverts from the “normal or usual” it gives rise to something called “abnormal or unusual,” which we call “a Disorder”. Fusion of two teeth is a common developmental disorder that is seen by a clinician. However, bilateral fusion along with Talon's cusp is very rarely seen and reported in literature. This article describes a rare case of the bilateral fusion of permanent mandibular central and lateral incisors, along with presence of Talon's cusp on the left fused teeth.

Talon cusp in a deciduous upper incisor from a medieval Portuguese child

Talon cusp is a rare developmental anomaly in deciduous and permanent dentition. This paper reports a case of talon cusp affecting the deciduous maxillary left incisor from a Portuguese child who died more than 680 years ago. Metric analysis suggests that the affected tooth is a double tooth. The possible co-existence of these two anomalies in the deciduous dentition, although clinically rare, represents the second archaeological case reported.

Dens evaginatus (talon cusp) of anterior teeth - A case report

The talon cusp, or dens evaginatus of anterior teeth, is a relatively rare dental developmental anomaly characterized by the presence of an accessory cusp like structure projecting from the cingulum area or ce-mentoenamel junction. Commonly dens evaginatus occurs in either maxillary or mandibular anterior teeth in both the primary and permanent dentition. This article reports a case of talon cusp and its management.

Occurrence of talon cusp on a geminated maxillary central incisor: a case report

This article reports an uncommon case of talon cusp on a geminated permanent maxillary central incisor, including details of the clinical and radiographic findings and treatment. A 28-year-old woman presented at the university dental clinic, and intraoral examination revealed a maxillary central incisor of abnormal size with a prominent accessory cusp on the lingual aspect. The case was diagnosed as talon cusp on a geminated tooth. Early diagnosis of this anomaly is important since it may cause clinical problems such as esthetic concerns, caries and tooth crowding. In the present case, these anomalies did not complicate the subsequent endodontic treatment.

Talon cusp in a deciduous lateral incisor from prehistoric Southeast Asia

AbstractThis paper describes a rare case of talon cusp in an infant from prehistoric Southeast Asia and represents the earliest case of talon cusp recorded. In addition to talon cusp, other aspects of its morphology may indicate a possible double tooth. This case is interpreted in the context of clinical and bioarchaeological research on this dental trait. Issues pertaining to the recognition of talon cusp, including clinical terminology used for this anomaly and the accuracy of prevalence data, are also discussed. Copyright © 2008 John Wiley & Sons, Ltd.

An Audit of Concomitant Dental Anomalies with Maxillary Talon Cusps in a Group of Children from Hong Kong

To investigate the prevalence of various concomitant dental anomalies in Hong Kong children with true talon cusps on the permanent maxillary incisors. Dental records and radiographs of a group of Hong Kong Chinese primary schoolchildren with true talon cusps (half crown height or more) on one or more permanent maxillary incisors were selected and studied retrospectively. The prevalence of various dental anomalies in this group of children was compared with that of the general population of Hong Kong Chinese children of similar age. A total of 11,537 records were reviewed and 58 children with true talon cusps on one or more permanent maxillary incisors were identified. A total of 69 permanent maxillary incisors were affected, of which all except one were lateral incisors. Dens evaginatus on premolars, supernumerary teeth in the anterior maxilla, and hypodontia were found in 5 (8.6%), 5 (8.6%), and 5 (8.6%) cases respectively. The prevalence of supernumerary teeth was significantly higher in children with true talon cusps as compared with the results of two previous general studies of Chinese children of similar age (P<0.05, Fisher's exact test). Children with true talon cusps on the permanent maxillary incisors were more frequently affected by supernumerary teeth in the anterior maxilla. Further studies with a larger sample are needed to confirm a true association.

Talon cusp: clinical features, diagnosis and orthodontic consideration in management

Talon cusp is a rare odontogenic anomaly of tooth shape comprising of accessory cusp-like structure often present on the palatal surface of maxillary or mandibular incisor. This developmental anomaly causes clinical problems including unsightly dental appearance, occlusal interference, and displacement of the affected tooth, irritation of the tongue, caries and malocclusion. Few cases have been reported in this environment. Management of the talon cusp varies according to the circumstances of the individual case and should be as conservative as possible. This report presents a case of a 15-year -old Nigerian girl with talon cusp on the maxillary left central incisor. The talon cusp was managed conservatively and orthodontic treatment was concurrently carried out. It is concluded that when talon cusp occur in association with an occlusal anomaly, careful evaluation of the patient is crucial for successful talon cusp occur in association with an occlusal anomaly, careful evaluation of the patient is crucial for successful orthodontic treatment.Keywords: talon cusp, clinical features, diagnosis, orthodontic management.Nigerian Dental Journal Vol. 15 (1) 2007: pp. 44-48

Dens evaginatus and dens invaginatus in all maxillary incisors a case report with review of literature

Dens evaginatus is a developmental malformation characterized by the presence of an extra cusp that takes the form of a tubercle arising from the occlusal or the lingual surface of the tooth’. It is also referred to as talons cusp in the anterior teeth and enamel pearl in the premolars. Dens invaginatus is a deep surface invagination of the crown or the root that is lined by enamel, dentin and pulp. Though many cases of dens evaginatus and dens invaginatus have been reported in literature, au association of both is a rare anomaly. This is a case report of dens evaginatus and dens Invaginatus ‘Involving ail the four maxillary incisors with bilateral paramolars in a 25 yr old patient.