Page 145 - BSAVA Guide to Pain Management in Small Animal Practice

BSAVA Guide to Pain Management in Small Animal Practice

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(a) (b)
A dental local anaesthetic needle and syringe. (a) The empty device, the ampoule with local anaesthetic
agent and the needle. An 18 needle is also depicted to demonstrate how ne the dental needle is.
(b) The device assembled and ready for use.
echni ue for in ltration
anaesthesia. A small
amount of local anaesthetic is
deposited into the gingiva and
alveolar periosteum in the region
of the tooth that needs to be
desensitized. The anaesthetic agent
di uses into the tissue to have local
e ect on the nerve. (a) The location
for buccal desensitization of an upper
incisor is shown on a cadaver. (b) It is
often necessary to place anaesthetic
agent palatally as well. The location
for palatal desensitization of an upper
(a) (b)
incisor is shown on a cadaver.
to desensitize incisors and rostral premolars in sensation distally. Techniques that have been
the lower jaw. It is only for the caudal described for dental procedures in animals
premolars and molars in the mandible that a are the infraorbital, the mandibular and the
regional block is required. mental blocks.
In the author’s opinion, the only regional
Technique for regional blocks block that is required for veterinary dentistry is
Regional anaesthesia is where the anaesthetic the mandibular block, which is described in
agent is deposited as close to the nerve as igure 7.11.
possible and its e ect is thus to block all

The intraoral approach to the
mandibular block involves palpating
the mandibular foramen intraorally and
directing the needle to that area using an oral
approach. (a) The easiest way is to slide the
needle along the medial aspect of the ventral
mandible, with the syringe held parallel to the
hemi-mandible to be blocked. (b) When the
point of the needle is close to the foramen,
move the syringe barrel over to the premolar
region of the contralateral side to give better
access to the area around the foramen.
The needle should be close to the bone of
the ventral mandible to avoid inadvertently
(a) (b) blocking the lingual nerve. The calculated dose
is deposited.
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