PULP CHAMBERS AND CANALS

Dr. Asmat JameelAssistant ProfessorB.D.S, F.C.P.SH d D t t f O l Bi lHead Department of Oral Biology

IMPORTANCE:-

| Clinical application related with Restorative ppdentistry.

| Clinical application related with Endodontics.

PULP CAVITY| The pulp cavity is the p p y

cavity in the central portion of the tooth containingcontainingthe nerves & blood vessels for the tooth. It is divided into,

1.PULP CHAMBER ( coronal)coronal)

2.PULP (root) CANAL ( root))

PULP CHAMBER|Pulp chamber is the most occlusal or|Pulp chamber is the most occlusal orincisal portion of the pulp cavity.There is one pulp chamber in each toothThere is one pulp chamber in each tooth.|PULP HORNS

Each pulp chamber has a roof at its Each pulp chamber has a roof at its incisal or occlusal border often with projections reffered as pulp horns.p j p p

ROOT CANALS

Root canals are the portion of the pulpp p p

cavity located with in the root(s) of a ( )tooth.

APICAL FORAMEN

|Neurovascular bundle enters |Neurovascular bundle enters through the apical foramen.

ACCESSORY/LATERAL CANALS

| Minute canals which extends laterallyyor horizontally most often found in the apical half.| Large openings terminating in main root canal.

DELTA SYSTEM (APICAL DELTA)

| If the root canal break up into multiple p ptiny canals it is refer to as Delta System.

PULP CAVITIES OF MAXILLARY TEETH

CENTRAL INCISOR

| Pulp cavity follows the outline of crown and rootroot.

| Pulp chamber is wider mesiodistally.y

| Pulp horns are present in the incisor region.

l h b i | Pulp chamber is triangular in shape with the base at the labial aspect.

LATERAL INCISOR

| Same as central incisor.Th l h di l | The canal has a distal curve in the apical region.g

CANINE

| Largest labiolingual dimension of pulp chamberchamber.

| Pulp cavity is oval in shape.p

FIRST PREMOLAR

| Two root canals.| Pulp horns extend

i i ll d h incisally under the buccal cusp.

| Floor is located below | Floor is located below the cervical level.

| Kidney shape pulp h bchamber.

SECOND PREMOLAR

| One or two canals.| Large buccolingual

di idimension.| Pulp chamber is oval.

MOLAR

o Three canals palatal, i b l d mesiobuccal and

distobuccal.o Prominent pulp horns.o Prominent pulp horns.o Pulp chamber is

rhomboidal in shape.o Third molars have

most variable anatomyanatomy.

MANDIBULAR TEETH

CENTRAL INCISOR| One canal but two

may be found.| Well developed pulp

hhorns.| Mesiodistal dimension

is small.is small.| Pulp chamber is

round, oval or lli i lelliptical.

LATERAL INCISOR

| Pulp chamber is larger than central incisor.P i l h| Prominent pulp horns.

| Oval pulp chamber.

CANINE

| Similar as in maxillary canine.

FIRST PREMOLAR

| Pulp cavity is similar to canine.B l h i | Buccal horn is prominent.

SECOND PREMOLAR

| Increased dimension of pulp cavities.P i l | Prominent pulp horns.

| Lingual horn is | Lingual horn is present.

| Canal curved distally.| Pulp chamber is

rectangular or triangilartriangilar.

MOLAR

| Large pulp chamber which extends down into the rootinto the root.

| Usually have three canals. Mesiobuccal, ,distobuccal and distal.

| Pulp chamber is t g l i hrectangular in shape.

| Mesial canal shows considerable curvature.