ABSTRACT
<p><b>OBJECTIVE</b>The research aimed to analyze the significance of Pont Index in the dental crowding.</p><p><b>METHODS</b>Respectively selected 91 normal occlusion persons and 101 dental crowding patients, measured every item of Pont Index of these two sample groups, and compared the results.</p><p><b>RESULTS</b>The premolar index and molar index of dental crowding patients were obviously bigger than that of normal occlusion, and there was apparent significant difference. There was no significant gender difference of Pont Index either in normal occlusion or dental crowding patients. Whereas there was significant gender difference of premolar arch width and molar arch width in normal occlusion.</p><p><b>CONCLUSION</b>The occurrence of dental crowding is clearly related to Pont Index.</p>