418 Section 12/ Dental Pharmacology(iv) Oxidized cellulose- It is a surgical
gauze, specially treated to promote
clotting by reaction between
haemoglobin and cellulosic acid. Since
it is not well absorbed it is used only
for surface haemostatics.
(v) Russel’s Viper venom- It has a strong
thromboplastin activity and used in
haemophilia cases by applying locally.
(vi) Vasoconstrictors - Adnenaline (1%
solution) is used in the form of cotton-
gauze pack in the bleeding socket. It
stops bleeding by causing local vaso-
constriction and useful in epistaxis.
(vii)Astringents- Tannic acid (20% in
glycerine) is used for bleeding gums
and bleeding piles.
Certain systemic haemostatics e.g.
tranexamic acid, ethamsylate etc. are also
used in the prevention and treatment of
capillary bleeding in epistaxis, haematuria
and after tooth extraction.DISCLOSING AGENTS
A dye used in dentistry as a diagnostic acid,
applied to the teeth to reveal the presence
of dental plague.