Practical Dental Local Anaesthesia (2nd Edition) (Quintessentials of Dental Practice, Volume 6; Oral Surgery & Oral Medicine, Volume 1)

Practical Dental Local Anaesthesia (2nd Edition) (Quintessentials of Dental Practice, Volume 6; Oral Surgery & Oral Medicine, Volume 1)

John G. Meechan

Language: English

Pages: 239

ISBN: 2:00249586

Format: PDF / Kindle (mobi) / ePub

Describes the techniques available to dentists to provide anaesthesia of the teeth and surrounding structures. The management of failure, safety issues, and methods of reducing injection discomfort are also described.

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block As mentioned above, it is possible to anaesthetise the palatal tissues by infiltration or by regional block methods. The greater palatine nerve block anaesthetises the soft tissues of the hard palate from third molar to canine region. The greater palatine foramen is located palatally to the distal aspect of the upper second molar tooth. The use of a ball-ended instrument such as an amalgam condenser is useful in locating the site of this foramen (Fig 4-21). This is the site of anaesthetic

This alteration involves approaching the crest of the alveolus through the gingival tissue (Fig 6-9) rather than via the gingival crevice. Fig 6-9 The intraligamentary injection can be given via the interdental papilla. This reduces the bacteraemia produced by this type of injection when compared to the approach via the gingival sulcus. 2. The entry of local anaesthetic and vasoconstrictor into circulation is rapid 162 following intraligamentary anaesthesia. Direct entry of the needle into

children and the elderly. • It is essential to take a full drug and medical history before injection. Further Reading Perusse R, Goulet J-P, Turcotte J-Y. Contraindications to the use of vasoconstrictors in dentistry. Pt 1. Oral Surg Oral Med Oral Path 1992;74:679–686. 196 Roberts GJ, Simmons NA, Longhurst P, Hewitt PB. Bacteraemia following local anaesthetic injections in children. Br Dent J 1998;185:295–298. Zakrzewska JM, Greenwood I, Jackson J. Introducing safety syringes into a UK dental

superior alveolar nerve leaves the main trunk within this canal and travels inferiorly in the lateral wall of the maxillary antrum to the alveolus. At a more anterior part of the infra-orbital canal the main trunk supplies the anterior superior alveolar nerve that descends to the alveolus at the anterior maxilla. The remaining part of the maxillary nerves continues as the infraorbital nerve and exits the maxilla at the infra-orbital foramen. The structures of importance in dental local

should be discarded if wear of these threads prevents secure retention of the needle. The plunger rod has a handle or thumb-ring at one end. It transmits force from the operator’s thumb to the cartridge plunger to allow injection. The plunger rod end design varies (Fig 2-8). It may be: • butt-ended • have a plunger-engaging device • be of the Astra self-aspirating design. 47 Fig 2-8 Different types of plunger rod ends. From the top these are the Astra self-aspirating design, two examples of

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