Labial canine talon cusp from the Early Holocene site of Gobero, central Sahara Desert, Niger

Stojanowski, Christopher M.; Johnson, Kent M.

doi:10.1002/oa.1144

Cited by 16 publications

(20 citation statements)

References 77 publications

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“…Current research suggests that they are both environmental and genetic in origin (Ratanen, ; Davis and Brook, ; Jowharji et al, ; Hattab et al, ; al‐Omari et al, ; Mays, ; Balcıoğlu et al, ). However, the issue is further complicated, as noted by Stojanowski and Johnson (), because there is little agreement about the identification and scoring of talons in humans. They also noted that a widely used scoring system (Hattab et al, ) is difficult to apply to labial expressions of talon cusps.…”

Section: Discussionmentioning

confidence: 99%

First Records of Talon Cusps on Baboon Maxillary Incisors Argue for Standardizing Terminology and Prompt a Hypothesis of Their Formation

Heaton

Pickering

2013

The Anatomical Record

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Dental characters can provide vital clues for understanding intra-and intertaxonomic morphological variation and its underlying genetic and environmental components. However, the unambiguous identification of particular traits and their comparative study is often confounded by lack of consistent terminology in the relevant literature. This difficulty is exacerbated when the etiologies are not completely understood, as is the case with talon cusps. To date, research on talon cusps has focused on modern humans. In many instances, descriptions of talon cusps appear in clinical case studies focusing on their treatment and removal. What is lacking in those discussions, though, is a comparative framework, in which the occurrence of talon cusps in nonhuman primates, and possibly other mammals, is established and understood. Here, we report on a taloned upper central incisor of a wild baboon (Papio hamadryas ursinus) from South Africa. The anomalous incisor of this individual includes an exaggerated accessory cusp diagnosed as a Type II talon. Microcomputed tomographic and radiographic analyses show that the taloned cusp possesses enamel, dentin, and pulp. In addition, we identified an unclassifiable talon cusp on a central maxillary incisor of a baboon skull housed in the Smithsonian Institution's Natural History Museum collection. Our observations of talon cusps on baboon incisors demonstrate that, with regard to this phenomenon, systematic study of nonhuman primates is much needed, along with a consistent use of terminology in the anatomical and anthropological literature. Finally, we present a hypothesis of the formation of talon cusps on mammalian incisors. Anat

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Section: Discussionmentioning

confidence: 99%

First Records of Talon Cusps on Baboon Maxillary Incisors Argue for Standardizing Terminology and Prompt a Hypothesis of Their Formation

Heaton

Pickering

2013

The Anatomical Record

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“…9500 BP in the Republic of Niger reported a facial talon cusp on the mandibular canine of an adult male, which was the only case report on a mandibular canine. 8 Thus, this case presents a very rare form of labial talon cusp on a permanent mandibular canine.…”

Section: Discussionmentioning

confidence: 88%

Facial talon cusp on a permanent mandibular canine: A rare case report

Ahmed¹,

Nayak²,

Rao

2017

Dent. Med. Probl.

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Talon cusp is an unusual abnormality characterized by a cusp-like projection that occurs due to the evagination of enamel and dentin with a variable amount of pulp tissue before calcification, usually present on the cingulum area on the palatal and lingual surface of the anterior teeth. The maxillary lateral incisors are most often affected, followed by the maxillary central incisors in both primary and permanent dentition. The etiology is unknown. This developmental anomaly is rare on the facial surfaces of mandibular canines and very few cases have been reported. When it occurs on the facial surface, it usually affects the esthetics and functioning.The present case report describes an unusual case of a facial talon cusp on a permanent mandibular left canine in a 12-year-old girl. To date, only 1 such case has been reported to our knowledge and it requires careful dental and radiographic examination of the affected patient since the findings can be of clinical significance.

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“…[1417–22] Few archeological studies have reported of labial talon cusp in ancient skeletal remains. [2324]…”

Section: Discussionmentioning

confidence: 99%

The reverse claw: Report of an extremely rare facial talon cusp

Hegde¹,

Shetty²,

Babu³

2012

Dent Res J

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Talon cusp is a rare developmental anomaly that occurs most commonly on the lingual side of the incisors. Occurrence of the labial talon cusp is rare in the dental literature. Till date only seven cases of isolated nonsyndromic labial talon cusps have been reported in the maxillary permanent dentition. However, a few cases of syndromic labial talon cusps and faciolingual talon cusps have been reported. The aim of our report is to highlight clinical and radiological features of this rare anomaly.

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Labial canine talon cusp from the Early Holocene site of Gobero, central Sahara Desert, Niger

Cited by 16 publications

References 77 publications

First Records of Talon Cusps on Baboon Maxillary Incisors Argue for Standardizing Terminology and Prompt a Hypothesis of Their Formation

First Records of Talon Cusps on Baboon Maxillary Incisors Argue for Standardizing Terminology and Prompt a Hypothesis of Their Formation

Facial talon cusp on a permanent mandibular canine: A rare case report

The reverse claw: Report of an extremely rare facial talon cusp

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