These are used in conjugation with semi solid or solid obturating materials to establish an adequate seal of root canal system.This is a brief note on the various root canal sealers ,composition ,salient features and brand names of some sealers which would prove helpful in clinical setup.

Classification :(according to Grossman)

1)ZnOE based sealers:

i. Grossman’s Formula

ii. Roth’s 801

iii. Tubliseal

iv. Wachs Sealer

2)CaOH based sealers:

i. Sealapex

ii. Apexit

3)Glass ionomer based sealers:

4)Resin based sealers:

i. AH Plus

ii. AH 26

iii. Epiphany

iv. Diaket

ZnOE based sealer-

Composition:

Base ingredient of powder -ZnOE,

Liquid usually consists -Eugenol alone or in combination with other liquids such as Canada balsam.

Features:

.Hardens in 2 hours approx at 37 degree celsius & under 100% relative humidity.

.Setting time in canal is less.(10-30 mins).

. Tissue tolerance is satisfactory with little inflammation & no inhibition of repair.

CaOH based sealers-

Composition:

Base consists -Zinc oxide, CaOH, butyl benzene, sulfonamide & Zinc stearate

Catalyst consists – resin,isobutyl salicylate, barium sulfate,titanium dioxide & aerosol

Features:

.antimicrobial

.osteogenic-cementogenic

.better healing capability

Glass ionomer based sealer-

Feature : dentin bonding ability but are unpopular due to difficulty in removal from root canal walls after treatment.

Resin based sealer-

Composition:

Paste A -Epoxy resin ,Calcium tungstate,zirconium oxide,silica,iron oxide

Paste B – Admantaneamine-N,calcium tungstate,zirconium oxide,silica-silicone oil

Features:

. Dentinal adhesion (strong adhesive properties).

.Contracts slightly while hardening.

.Good sealing ability.

.Bio compatibility to periapical tissues.

.Moderate antimicrobial activity.

.Long working time and easy for manipulation.

Sources: Grossman’s endodontic practice (13 th edition ),Instagram – @__dentistars__