The two components the debris/plaque (DI) and the calculus (CI) were used to calculate the oral hygiene index (OHI-S index=DI+CI).
The OHI-S index showed perfect oral hygiene in 0%, good oral hygiene in 15.24%, satisfactory hygiene in 56.64% and bad oral hygiene in 28.12% of cases.
The dental biofilm quantification criteria used in this study was the Oral Hygiene Index Simplified (OHI-S).
The OHI-S index was calculated using the following formula:
OHI-S = sum of vestibular and lingual indexes/total of examined surfaces
OHI-S index scores were analyzed on day one (baseline), before the use of dentifrices for each specific group.
OHI-S index scores were initially submitted to the D'Agostino-Pearson normality test, and a normal distribution was detected.
The oral hygiene variables of each subject were assessed using the Simplified Oral Hygiene Index (OHI-S) of Greene, Vermillion  (1964).
The OHI-S showed a great association with oral hygiene habits.
The OHI-S index devised by Green and Vermillion (1964) was used to assess the degree of oral hygiene.
The present study also concluded that the CPI and OHI-S have a great association with the caloric intake value by Jain monks because, according to their caloric intake, all the Jain monks were considered to be malnourished.
Table 2--Mean (SD) DI, CI and OHI-S scores according to the age groups.