Aim and objective: The objective of this in-vivo study was to evaluate toothwise and archwise sulcus depth in human primary, mixed and permanent dentition of Indian population.Method: The study included 40 subjects 22 males and 18 females of an age range 4-25 years. Subjects were divided into 3 groups - the primary dentition 4-6 years mixed dentition 7-13 years and adult dentition 16-25 years . All the parameters were measured in upper and lower anterior segments.Results: Gingival sulcus depth GSD was measured archwise and toothwise in different dentitions and overall dentition wise without differentiating archwise and toothwise. GSD was significantly higher in maxillary mixed dentition 1.75±0.75 followed by permanent and primary dentition. In all the dentition, maxillary central incisor showed significant GSD.Conclusion: The sulcus depth is maximum in mixed dentition followed by primary and permanent dentitions and significantly higher in maxillary central incisor.
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