BDS 2nd year notes nd books🦷

Important questions of dental materials as per request

1)Dental waxes(inlay waxes) 2) Elastic impression material (irreversible hydrocolloid) 3) hardness test 4) investment material 5) setting reaction of dental amalgam 6) dental composite 7) direct filling gold 8) young modules of elasticity 9) dental alloys 10) test for setting of gypsum 11) condensation of amalgam 12) creep n flow 13) dentin bonding agent 14) elastic memory 15) 18/8 stainless steel alloy 16) dental investment material (phosphate bonded investment) 17) material in maxillofacial prosthesis 18) curing lamps 19) steps of casting procedure 20) implants 21) tarnish n corrosion 22) compression moulding techniques 23) cements 24) light cure units 25) denture base material 26) casting defects 27) blue inlay wax 28) hue , value and chrome 29) hygroscopic settings expansion 30) agar agar 31) compression moulding techniques 32) gypsum product 33) hardness 34) disinfection 35) biocompatibility of dental materials 36) wettability 37) stades of polymerization 38) dental ceramics 39) eutectic alloys 40) galvanic shock 41) creep 42) ductility n mealibilty 43) delayed expansion 4

Difference between cavity liners and bases; Liners do not have the sufficient thickness, hardness, or strength to be used alone in a deep cavity, nor should they be used to achieve thermal protection or as a buildup material in a cavity preparation. In comparison, a base not only provides a barrier to chemical irritation, but can also provide thermal insulation.

Low Cu amalgam has much lower resistance to tarnish and corrosion as compared to high Cu amalgam due to formation of gamma 2- phase, which has least resistance to corrosion

Lab diagnosis for neoplasia 1. HISTOLOGICAL AND CYTOLOGIC METHODS 1)Excision biopsy 2)fine needle aspiration 3) cytologic smear 2.IMMUNOCHEMISTRY 3.TUMOR MARKERS 4.DNA PROBE ANALYSIS

Phagocytosis Two main types of phagocytic cells; A)polymorphonuclear neutrophils B) circulating monocytes and macrophages Process of phagocytosis 1) recognition and attachments stage 2) engulfment stage 3) degeneration stage 4) killing or degradation stage

Cellular phase of inflammation consist o two processes; 1) Exudations of leukocyte 2) phagocytosis Exudations of leukocytes; Escape of leukocytes from the lumen of microvasculature to the interstitial tissue. Changes 1) changes in formed elements of blood 2) Rolling n adhesion 3) Emigration 4)Chemotaxis; the chemotactic factor mediated transmigration of leukocytes after crossing several barriers to reach the interstitial tissue is called Chemotaxis. Chemokines 1)leucoterine B4 2) platelet factor. 3) complement C3 4)cytokines 5) soluble bacteria product

Beta lactam antibacterial drugs #pharma