Mesio-distal crown dimension of permanent dentition in normal, crowding, and spacing of young adult sample aged 18-25 years

Abstract

Background: This study aimed to assess the effect of tooth width in malocclusion in relation to normal, crowding, andspacing dentition.Materials and methods: The sample included dental casts of some dental students and orthodontic patients; theirage was (18-25) years and having three groups normal, crowding, and spacing dentition groups. The sample wasequally divided to three groups normal, crowding, and spacing dentition groups, each group contained 50 maxillaryand 50 mandibular casts that were further subdivided by gender; all the stone casts were measured by highlysensitive digital vernier.Results and Conclusions: Non-significant side difference was found in both dental arches in the three studied groups.Males had higher mesiodistal crown dimension than females in all three groups, with significant gender difference incrowding and normal dentition groups. The mesiodistal distance of the segment measurements (Total Anteriormaterial; Total Posterior material and Total teeth material) were larger in crowded dentition then followed by normaland spaced dentition groups respectively in both gender. Total Anterior material in both arches had direct significantcorrelation with crowding malocclusion, while maxillary Total Anterior material had indirect significant correlation withspacing malocclusion