Effect of gingival retraction in thin gingival biotype – a pilot study

Aim: The aim of this study is to evaluate the effect of gingival retraction systems on thin gingival biotype. Objectives: • To compare and analyse the effect of gingival retraction on bleeding on probing using impregnated cord and retraction paste systems. • To compare and analyse the effect of gingival retraction on clinical attachment level using impregnated cord and retraction paste systems. Materials and Methodology: The study was conducted on unprepared mandibular first molars in 30 selected human participants. They were divided into two groups and gingival retraction was done using impregnated retraction cord in one group and retraction paste system was used in another group. Periodontal indices were recorded prior to retraction procedure and a follow up for 15 days was done and the readings were compared and analysed statistically. Results: The Mann-Whitney U test showed that there is no significant increase in the bleeding on probing (BOP) and clinical attachment level (CAL) of post gingival retraction visits compared with baseline. Significant increase in BOP was seen at day 1 following gingival retraction in the retraction cord group when compared to retraction paste system group. Conclusion: The injury associated with the use of gingival retraction cords to the periodontium is only temporary and usually heals within a weeks’ time. The use of paste system is more advocated in gingival retraction procedure as it has added advantages over the regular gingival retraction cord system.