Supernumerary teeth in anterior molars of raccoon dogs

Harada, Yoshio; Imoto, Hiromaro; Yamada, Hiroshi; Yamamoto, T.; Yamada, Takeshi

doi:10.2330/joralbiosci1965.21.309

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a study based on analyzing 179 skulls, hyperdontia accounted for 4.5% of teeth pathologies. In a similar study of 82 skulls, hyperdontia was identified in 6 skulls [19,24]. Asahara (2016) [25], who found that in 153 studied skulls of raccoon dogs, M 4 extra tooth accounted for 2.61% of the pathologies, also gives a plausible explanation of the causes of hyperdontia.…”

Section: Discussionmentioning

confidence: 90%

Prevalence and Characterization of Dental and Skull-Bone Pathologies of the Raccoon Dog (Nyctereutes procyonoides) in Lithuania

Jurgelėnas

Jasineviciute

Daugnora

2023

Animals

View full text Add to dashboard Cite

The present investigation endeavours to discern dental and non-dental pathologies affecting cranial structures of raccoon dogs, while focusing on cases of periodontitis. Furthermore, the study aims to conduct a comparative analysis based on sex and the nature of the pathologies encountered. The number of investigated skulls amounted to 126, including 76 males and 50 females. The predominant pathology identified was hypodontia, which accounted for 26.7% of males and 20% of females. Notably, the majority of hypodontia cases involved the absence of the mandibular third molar. Another noteworthy pathology was various stages of periodontitis, with rates ranging from 21.3% in males to 8% in females. Other pathologies, like tooth fractures and abrasion, were significantly less encountered. Excessive bone formation was relatively abundant and localized in specific areas—the parietal bone and the occipital regions. This tendency was observed in 8% of male cases and 6% of females. We found that the total number of dental and skull-bone pathologies is significantly more common in males than in females (p = 0.003). Additionally, the total number of various cases of periodontitis is more common in males too (p = 0.04).

show abstract