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Mental nerve block/oral surgery courses by indian dental academy
1. Mental nerve block
It is the terminal branch of the I A N.
Comes out of mental foramen at or near the mandibular
premolars.
Area suppiled: sensory innervations to the buccal soft tissues
lying anterior to the foramen.
Soft tissues of the lower lip & the chin.
Indication:
1) Soft tissues biopsy
2) Suturing of soft tiissues
Contraindications:actue inflammation at site of injection.
Advantages:1)high success rate
2)easy technically.
3)atraumatic.
Disadvantage: hematoma
Chances of positive aspiration:5.7%
Alternatives:
Technique:
25-27gauge niddle
Area of insertion :mucobuccal fold at or just anterior
to the mental foramen
2. Traget area :mentak nerve as it exist from foramen
Land mark : mandibular premolars & mucobuccal fold.
Orientation of the bevel : towards the bon
INCISIVE NERVE BLOCK
Incisive nerve:
Terminal branch of the I. A .N.
Originates as a direct continuation of the i.a .nat the mental
foramen& continues an
Area suppied: premolars ,canines,incisors,there buccal soft
tissue and bone.
It provide sensory innervation to those teeth located anterior
to the mental foramen.
block:
1)dental procedures requiring pulpal anesthesia on the
mandibular teeth anterior to mental foramen.
2)while treating premolar to premolar
Contra indication: acute inflammation,
Area anesthetized:
Muccal mucosa anterior to the mental
foramen.
Lower lip &skin of the chin.
Pulpal nerve fibers of premolars , canines
,&incisors.
3. Advantage: 1)provides pulpal and hard tissue anesthesia with
out lingual anesthesia.
2)used in case of bilateral I.A.N
3)high succes rate
Disadvantage:
Dose not provide lingual anasthesia
Partial anasthesia may develop at the mid line because
of nervefibers mayover lap with opposite side
Positive aspiration: 5.7%
Alternatives:1) local infitration ofbuccal tissues&pulpal
anesthesia of central& lateral incisors
Inferior alveolar nerve block .
Gow-gates mandibular nerve block.
Vazirani-akinosis mandibular nerve block.
Periodontal ligamental injection.
Technique:1)25-gague needle is recommended but most
commonly we use 27 gague needle.
2)area of insertion:mucobuccal at or just anterior to the
mental foramen.
3)target area:mental foramen through whichthe mental nerve
exit and in which Incisive nerve is located.
4)land mark:mandibular premolars and mucobuccal flod.