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At least 793 records · Page 44Linked to original sources
PubMed1996

The dental pathology of feral cats on Marion Island, part I: congenital, developmental and traumatic abnormalities.

Skulls (n = 301) of adult feral cats from Marion Island, a sub-Antarctic island, were examined macroscopically. Congenital anomalies, which were rare, included a few supernumerary premolars, located mesially to those normally present. Supernumerary roots, mainly of the maxillary third premolar, were found in just over 10% of cases. The maxillary second premolar was absent in 16.8% of skulls; dichotomous and double-formed roots of this tooth were present in 20.1% and 1.9% of cases, respectively. Enamel hypoplasia, which is most unusual in this species, was noted in 24.6% of cases, and persistent deciduous teeth in 2.0%. Dental abrasion, which was noted in 19.3% of cats, affected only 2.3% of teeth, most commonly the lower fourth and upper third premolars. Dental fractures, mainly complicated crown fractures and root fractures, were noted in 54.8% of cats and 7.0% of teeth. Fractures were found most commonly in the canine and carnassial teeth, as also were periapical lesions, which were often severe. Mandibular fractures in various stages of healing were found in 11 cats (3.7%); such fractures most frequently affected the body of the mandible and resulted in malunion. It was concluded that the high prevalence of dental fractures and associated periapical lesions probably exerted a significant adverse effect on health and survival in this population of feral cats.

Animals↗
PubMed2001

Similar locations of impacted and supernumerary teeth in monozygotic twins: a report of 2 cases.

In this article, the cases of monozygotic twin brothers with similar developmental dental anomalies have been presented. Localization of impacted and supernumerary teeth and synchronous appearance of analogous ailments (leading to third tonsil removal and removal of supernumerary teeth from the anterior maxilla) are discussed. The boys' mother had also been treated for supernumerary teeth during childhood.

Adolescent↗
PubMed1993

Late development of supernumerary teeth: a report of two cases.

Two cases are presented of late developing supernumerary teeth. In the first the patient developed two crops of supernumeraries, both of which were found on radiographic examination following delay in the normal eruption pattern of the permanent dentition. The first crop of four supernumerary teeth were in the maxillary incisor region and were surgically removed; 5 years later four more supernumerary teeth was found in the maxillary canine and mandibular premolar regions, which were also surgically extracted. In the second case two supplemental mandibular premolars were found as an incidental finding on radiographic examination at the age of 15 years following orthodontic treatment, the patient having previously had four first premolars extracted; these supernumerary teeth were not extracted as they were asymptomatic. These cases emphasize the importance of careful review of patients with a history of supernumerary teeth and, where clinically indicated, of further radiographic examination.

Adolescent↗
PubMed1997

Mandibular supernumerary premolars: orthodontic and surgical considerations.

The presence of mandibular supernumerary premolars in two patients is reported. These teeth were discovered from panoramic oral radiographs during routine orthodontic assessment. The specific location of these teeth has a strong implication in the management of these cases. In the two cases reported, surgical removal is required prior to orthodontic treatment. A discussion is also made for the identification, location and surgical removal of these supernumerary teeth.

Adolescent↗
PubMed1998

An unusual case of hyperdontia [corrected].

The presence of supernumerary teeth is not uncommon but there have been very few documented cases of bilateral maxillary and mandibular supernumeraries distal to third molars. This case study looks at the frequency of and complications arising from supernumeraries as well as specifically covering the presentation and subsequent removal in practice of five supernumeraries distal to third molars. Good and thorough radiographs are essential for correct diagnosis.

Adult↗