TV4101 - Equine Dental Anatomy

Tooth type?

Features?

Hypsodont dentition – long crowned

Continually erupt throughout life, not continually grow

Large amount of reserve crown below gumline (~ 85% in young animal)

Variable/ inconsistent presence of these teeth

❖ Canines : commonly absent in mares

❖ First premolars (wolf teeth); variably present

Deciduous dentition consists of incisors and Premolars

Any others?

Deciduous canines actually exist, but don’t erupt through gum

Tooth Anatomy and Composition

The broad materials in teeth?

Made by whom if applicable?

Enamel - Ameloblasts

Cementum - Cementoblasts

Dentin - Odontoblasts

Pulp

Infundibulum

Enamel

Features?

hardest component, last to be eroded;

Molars & PM - Type 1; Incisors Type 2 enamel

Cementum Features?

Bone like substance; root formation & periodontal attachment

Dentin Features?

Cream coloured, calcified tissue; bulk of the tooth; Primary, 2dary and tertiary dentin

Pulp Features?

cavity within Dentin,

connective tissue containing BV,

nerve & lymphatics;

Incisors have single pulp cavity;

Cheek teeth have 1 central cavity but linked to multiple smaller ones

Infundibulum Features?

Blind pouch lined by enamel but filled by cementum –

Maxillary M&PM have 2,

Mandibular teeth have 0,

Incisors have one infundibulum