Investigation of the Relationship of Gingival Biotype with the Width of Keratinized Gingiva, Depth of Probe, and Height of Papilla in Patients Referring to the Dental School at Golestan University of Medical Sciences

Gingival biotype is defined as the faciolingual thickness of keratinized gingiva which plays an important role in periodontal health. Moreover, it affects the periodontal response to physical trauma, the result of periodontal and implant surgery, and restorative and orthodontic treatment. In this regard, the present study aimed to investigate the relationship of gingival biotype with the width of the keratinized gingiva, depth of probe, and height of papilla in the patients who referred to the Dental School at Golestan University of Medical Sciences.

This cross-sectional study was conducted on 130 patients who referred to the Periodontal Department of the Dental School. For the purposes of the study, their clinical parameters were assessed which included the width of keratinized gingiva, depth of the probe, and height of papilla. Finally, the relationship between the gingival biotype and clinical parameters was investigated. It should be noted that a p < /em>-value of 0.05 was considered statistically significant.

Out of 130 participants, 70 and 60 patients had thin and thick gingival biotypes, respectively. Based on the results, the mean values of the keratinized gingiva width, depth of the probe, and height of papilla were 6.23±1.44, 1.12±0.44, and 3.12±0.65 mm, respectively. Moreover, the mean values of keratinized gingiva width, depth of the probe, and height of papilla were 5.27±0.91, 1.07±0.37, and 3.4±0.66 mm in thin gingival biotype, respectively, and 7.35±1.10, 1.19±0.49, and 2.7±0.46 in the thick gingival biotype, respectively.

It can be concluded that the mean value of the keratinized gingiva width of the thin biotype was less than that of thick biotype. However, the height of papilla was more in the thin biotype, compared to the thick biotype. Besides, no significant difference was observed between the depth of probe of these two biotypes.