JOURNAL OF PROSTHETIC DENTISTRY THE

Vol. 100 No. 1      July - 2008

ISSN: 0022-3913      UBIC: 171

SUMMARY

Statement of problem:In addition to color; translucency is one of the primary factors influencing the esthetics of a dental prosthesis. Due to difficulties in measuring the translucency of natural teeth, minimal data are available. Purpose: The purpose of this studywas to measure the translucency of newly extracted maxillary central incisors and analyze the relationship between translucency, anatomic location, and age. Material and methods: The translucency of32 newly extracted maxillary central ncisors was measured with a spectrocolorimeter (PR-650) at 9 locations on the tooth crown. These locations were dentified by dividing the tooth incisally to cervically and medially to laterally in equal dimensions. The relationships between transmittance, locations, and age were analyzed by univariate analysis of variance (α=.05). Results: The transmittance of maxillary central incisors ranged from 0.13% to 0.65%, which decreased from incisal to cervical (P<.05). Age also affected transmittance in certain locations of the crown; older teeth demonstrated higher transmittance (P<.05). Conclusions: Transmittance of the maxiflary central incisor was variable at different locations of the crown and was positively correlated with age. (J Prosthet Dent 2008;1 00:11-17)

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