FIGURE 3.11 Mucosal nerve block innervated area.
PATIENT POSITION
- Supine on the examination table with the head of the bed slightly elevated.
LANDMARKS
- With the patient supine on the examination table, the clinician stands lateral to the side of the face that is being injected.
- Locate the mucosal reflection in the gingivobuccal sulcus that corresponds to the right or left first four teeth (medial incisor, lateral incisor, canine, and first premolar) of the maxillary or mandibular aspect of the mouth.
ANESTHESIA
- Topical anesthesia of the mucosa in this area is usually not necessary but may be provided with a 3-minute application of viscous lidocaine or benzocaine 20% gel to the area of injection.
EQUIPMENT
- Headlamp or other light source
- 3-mL syringe
- 25-gauge 1½-in. needle for intraoral approach
- 1 mL of 1% lidocaine without epinephrine
- Sterile gauze pad
TECHNIQUE
1. Wear a headlamp to provide good illumination for the procedure.
2. Grasp the lip with gauze and retract the upper lip superiorly or the lower lip inferiorly.
3. Identify the mucosal reflection in the gingivobuccal sulcus that corresponds to the right or left first four teeth (medial incisor, lateral incisor, canine, and first premolar) of the maxillary or mandibular aspect of the mouth.
4. A 1½-in. 25-gauge needle is positioned in the sagittal plane, directed either superiorly in the case of the upper lip or inferiorly with the lower lip.
5. The needle is gently inserted just under the mucosa at the gingival buccal sulcus that corresponds to each of the target teeth (Fig. 3.12).
6. Inject 0.1 mL of 1% lidocaine without epinephrine directly under the mucosa at each location.
7. Following injection, withdraw the needle.
Related posts:
