ISSN : 0376-4672
One of the main goals of restorative treatment is to establish a physiological periodontal environment and promote periodontal health maintenance. Crown contours affect periodontal health. Loe in 1965 and Socransky in 1970 showed that bacterial plaque was a direct cause of periodontal disease. O'leary in 1970 and Perel in 1971 demonstrated experimentally that crown contours can also affect gingival health. Several theories about crown contours came before it was found that dental plaques are the direct cause of gum disease and, therefore, are mostly hypothetical or simple opinions. Unfortunately, when discussing the shape of the prosthesis, there are still arguments that have no rationale (or weak), such as shape to obtain gum support or shape that becomes self-cleansing. I hope that readers would understand Crown contours better through a review of the dental literature.
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2. Perel, M. Axial crown contours. J Prosthet Dent 25:642, 1971.
3. Morris, M L. Artificial crown contours and gingival health. J Prosthet Dent 12:1146, 1962.
4. Burch, J.G. Ten rules for developing crown contours in restorations. DCNA 1971;15:611-618.
5. Yuodelis, R.A, et al. Facial and lingual contours of artificial complete crown restorations and their effect on the gingiva. J Prosthet Dent 29:61, 1973.
6. Parkinson, C. F. Excessive crown contours facilitate endemic plaque niches. J Prosthet Dent 35:424, 1976.
7. Wagman, S. S. The role of coronal contour in gingival health. J Prosthet Dent 37:280, 1977.
8. Skurow, H. M. and Lytle, J. D. The interproximal embrasure. DCNA 15:641, 1971.
9. Jameson, L.M. and Malone, W.F.P. Crown contours and gingival response. J Prosthet Dent 47:620-624, 1982.
10. Goodacre, C.J. Gingival esthetics. J Prosthet Dent 64:1-12,1990.
11. Hurzeler, M.B. and Sturb, J.R. Combined therapy for teeth with furcation involvement used as abutments for fixed restorations. Int J Prosthodont 3:470-476,1990.
