Subject	Medicine and Dentistry (General)
Specific subject area	Orthodontics. Diagnosis and Treatment planning
Type of data	Table Chart Graph Figure
How data were acquired	1. Direct measurement on plaster models with Digital Vernier calipers(iGaging ®, LA, California, USA). 2. A statistical formula for direct data entry of a complex mathematical equation is generated by algorithmic steps.
Data format	Raw Analysed
Parameters for data collection	A geometric shape of ellipse was fitted to the Maxillary arch. The Inter-molar width (half the minor axis), Inter-canine width and Inter-molar perpendicular (half the major axis) were measured on the model. The arch perimeter was measured. A statistical equation was developed so as the input of the major axis and minor axis generates directly the arch perimeter. The calculated and Measured arch perimeter were compared for correlation
Description of data collection	The data collected is basically numerically data on a continuous scale. All the measurements and calculated values are expressed in millimetre(mm).
Data source location	Institution: Narayana Dental college City/Town/Region: Nellore, Andhra Pradesh-524003 Country: India Latitude and longitude (and GPS coordinates, if possible) for collected samples/data: 14.4289° N, 80.0120° E
Data accessibility	Repository name: Mendeley Data Data identification number: 10.17632/ryc5y6c7k7.2 Direct URL to data: https://data.mendeley.com/datasets/ryc5y6c7k7/2