Aim: To determine the gingival biotypes in south Indian population. Materials and Method: Two hundred and forty patients are examined in the department of Periodontics, SRM Dental College in which one hundred and twenty patients are examined visually and one hundred and twenty patients by transgingival probing method using University of North Carolina -15 probe to determine the gingival biotypes whether it is thick, thin. Results: The evaluation of gingival biotype and comparison of gingival recession using probing method in which out of 87 thick gingival biotype patients, 27 had gingival recession and out of 33 thin gingival biotype patients, 18 had gingival recession (table 8). The comparison of prevalence of percentage of gingival recession using visual method had high statistical significance, where 10% of the people who had thick gingival biotype had gingival recession and 54.5% of patients who had thin gingival biotype using visual method had gingival recession. In probing method, 20% of the patients who had determined as thick gingival biotype had gingival recession and 50% of the patients who had thin gingival biotype had gingival recession which was quite highly statistically significant.