Amalgam surfaces were observed with a metallurgical and a scanning electron microscope. No significant differences in sizes of matrix crystal grains were found between the carved, burnished, and finished amalgams, or the superficial and inner layers. Numerous minute granular prominences eventually grew on the burnished surfaces.
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References
1.
Skinner, E.W., and Phillips, R.W.: The Science of Dental Materials, Philadelphia: W. B. Saunders Co., 1967, pp 343-347, 619-620.
2.
Peyton, F.A.: Restorative Dental Materials, S. LouisC. V. Mosby Company , 1964, p 411.
3.
Phillips, R.W.: Amalgam. Its Properties and Manipulation, New York J Dent23: 105-109, 1953.
4.
Phillips, R.W. ; Boyd, D.; Healey , H.J.; and Crawford , W.H.: Clinical Observation on Amalgam with Known Physical Properties : Final Report, JADA32:325-330, 1945.
5.
Gilmore, H.W.: Textbook of Operative Dentistry, S. LouisC. V. Mosby Company , 1967, pp 356-361.
6.
Fusayama, T.: New Amalgam Restoration, Kyoto: Nagasue Book Co., 1966, pp 182-192.
Tsuchitani, Y., and Ryge, G.: Tarnish of Dental Amalgam, J Dent Res44:421-426, 1965.
14.
Fusayama, T. ; Hosoda, H.; Hayashi , K.; Okuda, R.; and Matono, R.: Surface Roughness of Amalgam Fillings Made by Various Technics, J Dent Res46:1019-21, 1967.
15.
Charbeneau, G.T.: A Suggested Technique for Polishing Amalgam Restorations, J Mich Dent Ass47:320-325, 1965.
16.
Fusayama, T. ; Shimizu, M.; Hosoda , H.; and Horibe, T.: Early and Transversal Measurement of Amalgam Expansion, J Dent Res43:194-206, 1964.
17.
Wing, G.: The Microstructure of Dental Amalgam, Aust Dent J10:113-120, 1965.
18.
Kanai, S.: Structure Studies of Amalgam, Acta Odont Scand24:47-53, 1966.
19.
Ryge, G.; Moffet, J.C.; and Barkow, A.G.: Microstructural Observations and X-ray Diffraction Studies of Silver-Tin Amalgams , J Dent Res 32:2, 152-167, 1953.
20.
Wing, G., and Ryge, G.: Setting Reactions of Spherical Particle Amalgams, J Dent Res44:1325-1333, 1965.
