STENCILDENT

  TARNISH AND CORROSION  TARNISH : S urface discoloration  on a metal /even slight loss of surface finish. CORROSION:  D eterioration of a metal by reacting with environment,water ,oxygen,chloride ion,sulfide contribute corrosion attack. CAUSES FOR TARNISH    : Pigment producing bacteria formation of hard ,soft deposit on surface of restoration (eg-calculus) formation of thin film oxide and sulphide. CLASSIFICATION OF CORROSION CHEMICAL/DRY :  In chemical type of corrosion metal reacts to form oxide,sulphide  in the absence of  electrolyte for an example : oxidation of alloy particle in amalgam. 2) Electrochemical /wet corrosion: In electrochemical type of corrosion there will be formation of free electron ,electrolyte that provide pathway for transport of electrons. types of  electrochemical corrosion : A) galvanic corrosion B) concentration cell corrosion and C) stress corrosion  A) Galvanic corrosion:   When two dissimilar metal lie on direct contact with each other ,saliva acts

                          HEMOSTASIS         INTRODUCTION  Spontaneous arrest or prevention of bleeding from injured /damaged vessels by physiological process. STEPS IN HOMEOSTASIS : VASOCONSTRICTION FORMATION OF TEMPORARY HEMOSTATIC PLUG  FORMATION OF PERMANENT HEMOSTATIC PLUG              AIM OF THIS POST: Today we have started with learning on what hemostasis is then we moved in to steps in haemostasis. If you like this post , and  if you want me to upload on youtube do let us know   in the comment section below as it would help me create more such content . Contact details : Email: stencildent@gmail.com Instagram: Stencildent                                                        THANK YOU

                      ANSA CERVICALIS  Thin nerve loop lies embedded  in anterior wall of carotid sheath in lower part of larynx. It supplies infrahyoid muscle  hope this would have been useful  THANKS FOR WATCHING 

                DIGASTRIC TRIANGLE     INTRODUCTION  Its also know as submandibular triangle,paired triangle in anterior region of neck . NOTE: REFERENCES :B.D.CHAURASIA