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Comparative evaluation of microneedling vs injectable platelet-rich fibrin in thin periodontal phenotype: a randomized split-mouth clinical trial.

OBJECTIVES: Microneedling(MN) and injectable-platelet rich fibrin(i-PRF) have been proposed as relatively less invasive alternatives to surgical procedures for augmentation of thin periodontal phenotype. The present study was conducted to evaluate effect of MN and i-PRF alone on gingival thickness(GT) in thin periodontal phenotype individuals.

METHOD AND MATERIALS: Systemically healthy individuals with thin periodontal phenotype in mandibular anteriors (n=21) were treated with MN on one side and i-PRF on contra-lateral side. Assessment of GT, keratinised tissue width (KTW) and periodontal parameters was done at baseline,1,3 and 6 months.

RESULTS: In intergroup comparison, statistically significant increase in GT was observed with MN as compared to i-PRF at 6th month (p<0.02). Intragroup comparison from baseline to 6th month showed statistically significant increase in GT within both the groups, MN from 0.78mm±0.12 to 1.00mm±0.14 (p<0.000) and i-PRF from 0.77mm± 0.10 to 0.93mm±0.12(p<0.000). Intragroup comparison showed statistically significant increase in KTW in MN group (p<0.000). Statistically significant decrease in periodontal parameters was observed on intragroup comparison (p<0.000).

CONCLUSION: Considering the higher gain in GT and the added advantage of eliminating need for autologous blood withdrawal, MN is potentially better than i-PRF for phenotype modification in thin periodontal phenotype individuals.

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