<prompt> Model analysis indicated for 2 quadrants:Hixon-old fatherPeck and peck indexPonts indexAll of the above  <response>: Key Concept:The question wants to ask about the analysis that can be performed in 2 quadrants i.e. in single arch either maxilla or mandible. Examples: Hixon - old father mandibular archPeck and peck index mandibular archPonts index maxillary arch 