Which of the following teeth are not excluded from the scoring in Simplified Oral Hygiene Index (OHI-S)?
The Simplified Oral Hygiene Index (OHI-S) was developed in 1964 by John C. Greene and Jack R. Vermillion. 
Natural teeth with full crown restorations and surfaces reduced in height by caries or trauma are not scored. Third molars are  included only if they are functional
Natural teeth with full crown restorations
Surfaces reduced in height by caries
Traumatized teeth
Functional third molars