Clinical measurements of the dimensions of the dental arches and its application on construction of dental prosthesis

الملخص EN

Aims : to determine the ideal dimensions of the artificial dental arch by measuring the dimensions of dental arch of completely dentulous subjects and to find the relation of these dimensions to some facial measurements.

Materials and Methods : the sample of study consisted of 54 completely dentulous adult subjects (24 females and 30 males) with Class 1 normal occlusion aged 19–24 years.

Dental casts were taken for each subject and the dimensions of the dental casts and the facial measurements were made by using digital vernier caliper.

The data were analyzed with Statistical Package for Social Science program.

Results : the dimensions of the dental arches and the facial measurements of the male group was larger than that of female and there was high correlation between some dimensions of dental arch with some of the facial measurements.

Conclusions : the width of the dental arches of the artificial dental prosthesis could be determined depending on the extra oral facial measurements as the percentage of upper intercanine distance to mouth width is 74.43 % and the percentage of the upper inter first molar distance to bizygomatic width was 40.65 %.