The analysis helps to determine if the dental arch is narrow or normal and if expansion is possible or not.
The widths are measured from occlusal grooves of both premolars and molars.
[2] In addition, because this analysis only applies to the upper arch serves a drawback also.
The Hath index has a slight variation from Pont's analysis.
In the maxillary arch instead of 80, Linder Harth Index uses 85 to achieve the Measured Molar Value.