The document discusses various nerve blocks and local anesthesia techniques for the mandible and maxilla. It describes the nerves blocked, anatomical landmarks, volumes of local anesthetic used, and areas anesthetized for inferior alveolar nerve block, lingual nerve block, mental nerve block, buccal nerve block, anterior superior alveolar nerve block, middle superior alveolar nerve block, posterior superior alveolar nerve block, nasopalatine nerve block, greater palatine nerve block, and local infiltration techniques. Supplementary techniques like intraligamentary, intrapulpal, intraosseous, and intraseptal anesthesia are also summarized.
Dr, Kathirvel Gopalakrishnan
M.D.S (OMFS)
Presentation on Maxillary nerve block which helps for a quick refresh.
Applied aspects described well and slides contains images for easy understanding of the subject.
Local aneasthesia techniques which are to be performed extraorally when the conventional intraoral approches for local anaesthesia cant be performed.
Very useful for dental Practioners
Dr, Kathirvel Gopalakrishnan
M.D.S (OMFS)
Presentation on Maxillary nerve block which helps for a quick refresh.
Applied aspects described well and slides contains images for easy understanding of the subject.
Local aneasthesia techniques which are to be performed extraorally when the conventional intraoral approches for local anaesthesia cant be performed.
Very useful for dental Practioners
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Border Moulding in Complete Denture Prosthesis ,This Seminar was presented By Dr. Alim Al Razi,DR. Halima Sadia, and Dr. Tahmina Akter at prosthodontics Department ,Dhaka Dental College and Hospital.We tried To cover Full theoretical and practical Information Regarding This Topic.
We in Chinthamani Laser Dental Clinic & Implant Centre ,cover every speciality and subspeciality in dentistry so that all kind of your dental problems can be treated efficiently and effectively.
Contact us:
Chinthamani Laser Dental Clinic & Implant Centre
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Website:
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Border Moulding in Complete Denture Prosthesis ,This Seminar was presented By Dr. Alim Al Razi,DR. Halima Sadia, and Dr. Tahmina Akter at prosthodontics Department ,Dhaka Dental College and Hospital.We tried To cover Full theoretical and practical Information Regarding This Topic.
Oral surgery
Mandibular nerve block.
Local anaesthesia.
Areas anaesthetised.
Technique
Placement of needle
advanatges and disadvantages of this technique
Complications
Failure of IANB
Anatomy
Local Anesthesia in childs , dentistry for adoleclsencehanimortezaeee
injection is the dental procedure that produces the greatest negative response in children.
Topical anesthetics are available in gel, liquid, ointment, and pressurized spray forms. However, the pleasant-tasting and quick-acting liquid, gel, or ointment preparations seem to be preferred by most dentists.
Ethyl aminobenzoate (benzocaine) liquid, ointment, or gel preparations are probably best suited for topical anesthesia in dentistry.
The mucosa at the site of the intended needle insertion is dried with gauze, and a small amount of the topical anesthetic agent is applied to the tissue with a cotton swab. Topical anesthesia usually produces an effect within 30 seconds, although keeping it in place between 2 and 3 minutes may provide the best results
The jet injection instrument is based on the principle that small quantities of liquids forced through very small openings under high pressure can penetrate the mucous membrane or skin without causing excessive tissue trauma.
Jet injection produces surface anesthesia instantly and is used instead of topical anesthetics by some dentists.
The method is quick and essentially painless; however the abruptness of the injection may produce momentary anxiety in the patient. This technique is also useful for obtaining gingival anesthesia before a rubber dam clamp is placed for isolation procedures
INFERIOR ALVEOLAR NERVE BLOCK (CONVENTIONAL MANDIBULAR BLOCK)
the mandibular foramen is situated at a level lower than the occlusal plane of the primary teeth of the pediatric patient. Therefore the injection must be made slightly lower and more posteriorly than for an adult patient.
An accepted technique is one in which the thumb is laid on the occlusal surface of the molar, with the tip of the thumb resting on the internal oblique ridge and the ball of the thumb resting in the retromolar fossa.
The barrel of the syringe should be directed on a plane between the two primary molars on the opposite side of the arch.
The depth of insertion averages about 15 mm but varies with the size of the mandible
Approximately 1 mL of the solution should be deposited around the inferior alveolar ne
Lingual nerve block
One can block the lingual nerve by bringing the syringe to the opposite side with the injection of a small quantity of the solution as the needle is withdrawn. If small amounts of anesthetic are injected during insertion and withdrawal of the needle for the inferior alveolar nerve block, the lingual nerve will invariably be anesthetized as well.
Long buccal nerve block
A small quantity of the solution may be deposited in the mucobuccal fold at a point distal and buccal to the last tooth
All facial mandibular gingival tissue on the side that has been injected will be anesthetized for operative procedures, with the possible exception of the tissue facial to the central and lateral incisors, which may receive innervation from ove
SUPRAPERIOSTEAL TECHNIQUE (LOCAL INFILTRATION) The injection sho
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NERVE BLOCKS AND ANATOMICAL LANDMARKS IN PEDIATRIC DENTISTRY.pptx
1. Nerve blocks and anatomical
landmarks
presented by :- shubham ingle , sakshi gore
Ronak varyani ,Pratik kore
2. Pain
pain is unpleasant emotional experience usually initiated by noxious stimulus and
transmitted over a specialised neural network to the cns where it is interpreted as such.
Local anesthesia
Reversible loss of sensation in a circumscribed area of the body caused by a
depression of excitation in nerve ending or an inhibition of the conduction process in
peripheral nerves.
3. Types of injection procedures
1) nerve block : depositing the la solution within close proximity to main
nerve trunk.
2) field block: deposing la in proximity to the larger nerve branches.
3) local infiltration; small terminal nerve endings are anaesthetised.
4.
5. Anaesthesia for the mandibular tissue
Inferior alveolar nerve block
Lingual nerve block
Long buccal nerve block
Mental nerve block
6. Rule of 10
A method of providing a guide as to whether an infiltration or a block injection of
local analgesic is appropriate for a child requiring treatment to a mandibular tooth
The primary tooth to be anesthetize is assigned a number from 1 to 5 according to
its location in the dental arch (central incisor -1 , second molar -5)
This nu,ber is added to the age of the child and if number is 10 or less then an
infiltration analgesic I most appropriate if greater than 10 then inferior dental
nerve block is likely to be more effective.
Example - age of pt =5yr , 1st molar =4 ,
Then 5 +4= 9 (infiltration)
Age of pt = 8 , 1st molar = 4
Then 8+4 = 12 ( block or infiltration)
7. Anesthesia of mandibular teeth and soft tissue
1) Inferior alveolar nerve block + lingual nerve block
the mandibular foramen is situated at the level of lower than the occlusal plane of
primary teeth of the patient
the injection must made slightly lower and more posteriorly than for an adult
patient.
Recommended
Volume of LA =1.5 to 1.8 ml
9. Nerve and Area anesthetized
Mental nerve
Incisive nerve
Lingual nerve
mandibular teeth of the injected side.
Body of mandible , inferior portion of ramus
Buccal mucoperiosteum , mucous membrane anterior to the
mandibular 1st molar
Anterior 2/3 rd tongue and floor of the mouth
Lingual soft tissue and periosteum.
Used for more than1 tooth filling extraction , pulp therapy and
if cant apply mental block due to infection.
10. technique
25 gauge needle is used
Area of insertion – mucous membrane on toward the
mandible side of of mandibular ramus near the
mandibular foramen but before it enters the foramen
Target area –inferior alveolar nerve it passes
downward toward mandibular foramen but before it
enter the foramen
Patient position –supine or semi supine
Operator position
1 . Right ianb -8 o’clock
2. left ianb -10 o’clock position
11. Procedure
With the left thumb,palpate the coronoid notch
With the same finger ,pull the soft tissue laterally to gain visibility and make
the tissue taunt
The needle insertion point lies three fourth the anterioposterior distance from
the coronoid notch to the deepest portion of pterigomandibular raphe.
12. The mandibular foramen is situated lower than the occlusal plane of
the primary teeth of pediatric patient
The injection must be made slightly lower and more posteriorly than
for an adult patient
Prepare the tissue of injection site
Place the barrel of syringe in the corner of mouth on the
contralateral side
Penetrate the tissue with the needle and slowly advance till bony
resistance is felt
13. Average depth of penetration is 15 mm but it depend upon age and
size of mandible
When bone is contacted withdraw 1mm to prevent subperiosteal
injection
Aspirate
If negative slowly deposit 1.5 to 1.8 ml of anesthetic over of 1 minute
Slight withdraw the needle and take to the same side
Reaspirate
If negative, deposit a portion of remaining anesthetic 0.3 -0.5 ml to
anesthetize lingual nerve
Withdraw the syringe slowly and make the needle safe
Wait for 3to 5 min before commencing the dental procedure.
14. Mental nerve block
Anatomical landmarks
mandibular premolar
Mucobuccal fold
recommended volume
0.6 to 1 ml
15. Mental nerve block
Nerve anesthetized : mental , terminal
branch of inferior alveolar nerve
Area anesthetized: soft tissue of lower lip,
chin
Buccal soft tissue anterior to mental foramen are
anesthetized.
Landmarks:
1. Mandibular premolar
2. Muccobuccal fold
16. technique
Area of insertion ; - mucobuccal fold at or just anterior to mental
foramen.
Target area ; -mental nerve as it exist mental foramen
1. locate the mental foramen
2. Place the index finger in the muccobuccal fold and pressed
against body of mandible in the first molar area.
3. Move the finger slowly anteriorly until the bone beneath your
finger feels irregular and somewhat concave.
4. Orient the syringe with bevel directed toward bone
5. Penetrate the mucuos membrane at injection site at the canine or
first premolar,directing the syringe toward mental foramen.
6. Depth of penetration is 5-6 mm deposit 0.6 ml.
17. buccal nerve block
Site of injection
Mucous membrane distal and buccal to the most distal molar tooth in the arch.
Area anesthetized
Soft tissue and buccal nerve (branch of anterior divison of mandibular nerve)
Needle used -25 gauge
Amount of la required – 0.3 to 0.5 ml
Indication
when buccal soft tissue anesthesia is necessary for dental procedure in the
mandibular molar region
18. Technique
Area of insertion – mucous membrane distal and
buccal to the most distal molar tooth in the arch
Target area –buccal nerve as it passes over the
anterior border of the ramus
Land marks – mandibular molar and mucobuccal fold
Orientation of bevel – toward the bone
19. Procedure
Operator position
Right buccal nerve block – 8 oclock postion
Left bnb – 10 o clock position
Patient position – supine or semisupine
Prepare the tissue for needle penetration
With left index finger pull the buccal soft tissue in the area of injection laterally to
improve visibility and mouth tissue taut
20. Align the needle parallel to the occlusal
plane and buccal to the teeth and direct it
toward injection site
Penetrate the mucous membrane at the
injection site distal and buccal to the last
molar
21. Advance the needle until mucoperiosteum is gentaly contacted
Depth of penetration 1 to 2 mm
Aspirate
Slowly deposit 0.3 to 0.5 ml of la over 10 sec
Withdraw the syringe slowly and immediately make the needle safe
Wait for approximately 1min before commencing the dental procedure
22. Infiltration for mandibular incisor
The terminal end of the inferior alveolar
nerve cross over the mandibular midline
slighthtly and provide conjoined innervtion
of mandibular incisor
The labial bone overlying the mandibular
incisor is usually thin enough for
supraperiosteal anesthesia technique to be
effective.
23. Anaesthesia for maxillary tissue
Anterior superior alveolar nerve block
Posterior superior alveolar nerve block
Middle superior alveolar nerve block
Nasoplalatine nerve block
Greater palatine nerve block
Infiltration
24. Area anesthetized
1) Pulp and root area of the tooth
2) Buccal periosteum
3) Connective tissue
4) Mucous membrane
Maxillary nerve branches
1. Anterior superior alveolar nerve
2. Middle superior alveolar nerve
3. Posterior superior alveolar nerve
25. Anterior superior alveolar nerve block
Anatomical landmarks
1. supraorbital and infraorbital notch
2. Pupil of eye
3. infraorbital ridge
4. Infraorbital depression
5. Anterior teeth
26. procedure
25 guage needle and 0.9 to 1.2 ml LA use
Bicuspid approach;- it passes through the mucosa and
alveolar tissue and during insertion should pass beneath and
lateral to the external maxillary artery and anterior facial vein
Central incisor approach ;-it passes through mucosa and
areolar tissue beneath the angular head of the levator labii
superioris muscle proceed anteriorly to the origin of levator
anguli oris muscle and beneath external maxillary artery and
anterior facial vein
When in final position at the orifice of infraorbital canal it
should be
1.Beneath infraorbital head levator levator labii superioris muscle
2.Above the origin of levator anguli oris muscle
27. nerve anesthesized
infraorbital ,anterior and middla superior alveolar
nerve , inferior plpebral, lateral nasal , superior labial
nrves.
Area anesthetized
incisor, cuspids ,bicuspids,and mesiobuccal root of
first molar on th eside injected , including bone and soft
tissue , upper lip and portion of nose on same side
28. Middle superior alveolar nerve block
Landmark ; muccobuccal fold above maxiilary second
premolar
Procedure‘;
A 27 guage short needle is recommended
Strech the patient upper lip make the tissue taut and to gain
the visibility
Insert needle in to the height of muccobuccal fold above
second molar with the bevel direct toward bone
Penetrate the mucous memebrane slowly advanace needle tip
is located above the apex of second premolar
Aspirate into place
Deposit 0.9 to 1.2 ml
29. Posterior superior alveolar nerve block
Anatomical landmarks
1. muccobuccal fold and its concavity
2. Zygomatic process of maxilla
3. Infratemporal surface of maxilla
4. Anterior border and coronid process of ramus of mandible
5. Maxillary tuberosity
30. Nerve anesthetized
Posterior superior alveolar nad its branches
Area anesthetized
pulp of maxillary 3rd 2nd and 1st molar (except
mesiobuccal cusp )
31. procedure
Instruct the child partially close the mouth to allow cheek and lips to be
stretch laterally
The tip of the dentists forefinger will rest in the concavity in the
mucobuccalfold
Ball of the finger id in contact with the posterior surface of zygomatic
surface
Bennett suggest that the finger to be on plane at right angle to the
occlusal surface of the maxillary teeth and 45* to the patient occlusal
surface of the maxillary teeth and 45* to the patients saggital plane
The index finger should point the direction of the needle during the
injection
33. 1)nasopalatine nerve block
Anatomical landmarks
central incisor teeth and incisive papilla
Nerve anesthetized : nasoplalatine
Area anesthetized
anterior portion of hard palate , hard and soft tissue
from the mesial of right 1st premolar to mesial of left 1st
premolar
34. Technique
Two types of technique 1.single penetration
2.multiple penetration
1) Single penetration :
Area of insertion – palatal mucosa just lateral to the incisive papilla
Target area –incisive foramen beneath the papilla
Path =approach the injection site at 45* angle toward insive papilla. chair position 9 o clock facing in the same
direction as the patient
Slowly advance the needle toward the foramen until bone is gently contacted (depth aprox 5mm)
Slowly deposit 0.45 ml in 15 -30 sec minimum
35. 2)Greater palatine nerve block
Anatomical landmarks
1. greater palatine foramen
2. Maxillary alveolar process
3. Palatine bone
Nerve anesthesize
greater palatine nerve
Area anesthetized
Posterior portion of hard palate and its overlying tissue
Anteriorly as far as the 1st premolar and medially to the midline
36. technique
Locate the greater palatine foramen
Place the cotton swab at the junction of maxillary alveolar
process and hard palate
Start in the region of maxillary first molar by pressing firmly
into tissue with the swab
Swab fall in to depression greater than palatine foramen
Foramen is most frequently located distal to the maxillary
second molar
Slowly advance the needle until palatine bone is gently
contacted
If the penetration is 5mm deposit 0.45 to 0.6 ml
37.
38. Infiltration
Supraperiosteal technique (local infiltration)
most frequently used for obtaining pulpal anesthesia in
maxillary teeth.
Indicated whenever dental procedure are confined to
only one or two teeth
Anatomical Landmarks : insertion 45* to long access
of the tooth
Muccobuccal fold
Crown of the tooth
Root contour of the tooth
39. Labial or buccal infiltration
in local infiltration the nerve endings in the area of surgery
are flooded with local anesthetic solution
Landmark ; mucobuccal fold
Needle use 1 inch ,25 guage
Amount =0.45 to 0.6 ml
40. Palatal infiltration anesthesia
Indication
- palatogingival pain control for rubber dam clamp
retraction cord placement and small surgical procedure
-target area is the palatal tissue 5 t0 10 mm from the
free gingival margin
-masticatory mucosa of the hard palate 3 to 5 mm thick
-palatal infiltration are safe areas anatomically to
deposit anesthetic
42. Intraligamentary anesthesia
Needle 25 guage
The solution is injected along periodontal membrane of
teeth usually 0.2 ml delivered via a specially designed
system which copramise of high pressure syringe and
ultrafine needles
The technique can anesthetize only single individual
tooth
43. Intrapulpal anaesthesia
Indication ; for obtaining anaesia which require direct
instrumentation of pulp tissue
25 or 27 guage needle is inserted directly into the pulp
chamber . The needle should be held firmly or wedge into
the pulp chmber or root canal
44. Intraosseous injection
The total anaesthetic solution deposited directly into the
cancellous bone adjacent to be anaesthsized between the
two cortical plate of bone
Intraosseous injection is usually an adjacent and Is used
when cconventional method have been tried and failed.
45. Intraseptal anesthesia
A needle is force gently into the porous interseptal bone on either side of the tooth under pressure into
the cancellous bone
More effective in childrens and young adults
Indiication
where the Intraligamentary enesthsia is no quite effective
Technique
The injection is given in the septu,m of two adjoining teeth in between the two cortical plate