The SPEED Intra-Oral Ruler can be used to measure the Protector Coil span and match this to the Protector Coil segment. Additionally, there are numerous other clinical applications for the SPEED 
Intra-Oral Ruler including the measurement of:

• Overjet
• Inter-incisal opening
• Dental midline
• Diastemas
• The extent of gingival recession
• Length of maxillary incisor displayed with lips at rest