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  • Title: The magnitude of interproximal spaces between adjacent teeth.
    Author: DuBois LM, Niles SM, Boice PA.
    Journal: Am J Dent; 1993 Dec; 6(6):315-7. PubMed ID: 7880484.
    Abstract:
    Previous studies have shown that the human resting dentition naturally exhibits slight interproximal spacing between 80% to 90% of all adjacent teeth. The purpose of this study was to measure occurrence and dimension of interproximal spacing. Pieces of shim stock of various thicknesses were used to measure the dimension of interproximal spaces between natural or restored approximating tooth surfaces in 40 human subjects. The midline was frequently found to exhibit the largest space, and the dimension of the spacing was found to be greater in anterior teeth than posterior teeth. The canine-premolar spaces were also relatively large. The magnitude of interproximal tooth spacing was not related to gender or age. Results indicate that the position of teeth is naturally adjusted to maintain interproximal spacing. Interproximal spacing may allow for physiological movement to increase tolerance to trauma and improve tactile sensation.
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