Feasibility of dental and oral cavity examination and dental radiography in sedated four-toed hedgehogs (Atelerix albiventris)

Abstract

Objective

Report normal oral and dental examination findings and evaluate the feasibility of intraoral radiography in four-toed hedgehogs (Atelerix albiventris) under sedation.

Methods

Twelve healthy, adult hedgehogs (seven males, five females) were sedated with a combination of alfaxalone (5 mg/kg [2.3 mg/lb]) and midazolam (1 mg/kg [0.45 mg/lb]) SC and an oral examination performed in a research setting. The dental formula, documentation of calculus, missing teeth, fractures, mobility, and microdontia were recorded. Periodontal probing evaluating the sulcus depth for each tooth was performed and a gingivitis score assigned, if applicable. Dental radiography was performed using commercial phosphor dental imaging plates. Intraoral radiographs of maxillary and mandibular quadrants as well as skull radiographs were collected.

Results

Sedation was sufficient for performing most of the oral examination, except inspection of the tonsils, soft palate, and pharynx, and permitted intraoral radiography in all hedgehogs. The dental formula for each hedgehog varied, but most animals (7/12, 58%) had I 3/2, C 1/1, P 3/2, M 3/3. Most animals (9/12, 75%) had dental abnormalities, which were most noted in the maxillary quadrants (9/12, 75%). The most noted oral abnormality was calculi, seen in 7/12 (58%) animals. Gingivitis was present in 5/12 (42%) hedgehogs and was most associated with the maxillary incisors.

Conclusions and clinical relevance

Subcutaneous alfaxalone-midazolam provides adequate sedation for dental evaluation and intraoral radiography in four-toed hedgehogs. Calculus accumulation, missing teeth, and periodontal disease were common findings in this group of hedgehogs. The high rate of dental abnormalities found in this study underscores the importance of performing regular oral examinations using chemical immobilization in pet hedgehogs. Intraoral radiography can be used as in other pet species to guide clinical decision making.