Peer-reviewed veterinary case report
Pathological studies of cheek teeth apical infections in the horse: 1. Normal endodontic anatomy and dentinal structure of equine cheek teeth.
- Journal:
- Veterinary journal (London, England : 1997)
- Year:
- 2008
- Authors:
- Dacre, I T et al.
- Affiliation:
- The Royal (Dick) School of Veterinary Studies · United Kingdom
- Species:
- horse
Plain-English summary
Researchers studied the normal structure of the cheek teeth in horses aged 1 to 12 years to better understand their anatomy. They looked at 100 teeth using various methods, including detailed imaging and microscopic examination. They found that the teeth in specific positions had a consistent number of pulp horns, which are the soft tissue parts inside the teeth. The study also suggested a change in how certain types of tooth material are classified, which could help in understanding dental issues in horses. Overall, this research provides important insights into the normal anatomy of horse teeth, which can aid in diagnosing and treating dental problems.
Abstract
Morphological examinations were performed on 100 normal equine cheek teeth (CT) of 1-12 years dental age (i.e. time since eruption), using gross examination, dissection microscopy, computerised axial tomography, and decalcified and undecalcified histology. The CT in Triadan 07-10 positions consistently had five pulp horns, but the 06 CT had an additional pulp horn more rostrally. Mandibular and maxillary Triadan 11s had six and seven pulp horns, respectively. Sections of CT taken 2-6mm below the occlusal surface (variation due to normal undulating occlusal surface) showed the presence of pulp in up to 50% of individual maxillary CT pulp horns, and in up to 25% of individual mandibular CT pulp horns. The histological appearances of primary and secondary dentine were described and it is proposed that the type of dentine present most centrally in every pulp chamber examined, currently termed tertiary dentine, should be re-classified as irregular secondary dentine, and that the term tertiary dentine be reserved for the focal areas of dentine laid down following insult to dentine or pulp.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/19010699/