PMID- 34319670 OWN - Quintessenz Verlags-GmbH CI - Copyright Quintessenz Verlags-GmbH OCI - Copyright Quintessenz Verlags-GmbH TA - Int J Esthet Dent JT - International Journal of Esthetic Dentistry IS - 2198-591X (Print) IP - 3 VI - 16 PST - ppublish DP - 2021 PG - 364-374 LA - en TI - Short-term effect of regular vs mini curettes on periodontal tissue according to phenotype: 
a randomized control clinical trial FAU - Acunzo, Raffaele AU - Acunzo R FAU - Gorbunkova, Angelina AU - Gorbunkova A FAU - Rezzolla, Mirta AU - Rezzolla M FAU - Bellucci, Gionata AU - Bellucci G FAU - Rasperini, Giulio AU - Rasperini G CN - AB - Aim: The aim of this randomized control clinical trial was to compare the soft tissue response to mechanical root instrumentation procedures performed using periodontal curettes with different-sized working parts. Materials and methods: Twenty patients affected by Stage 3 Grade B periodontitis – a total of 109 teeth – were treated with either Mini-Five Gracey Curettes (MFC) or Conventional Gracey Curettes (CGC). Measurements were performed by a blinded examiner at baseline and at 6 weeks. Outcome measurements included pocket depth (PD), recession depth (RD), and difference in RD (∆RD). Results: The use of MFC significantly reduced soft tissue shrinkage (1.5 ± 1 vs 2.4 ± 1.3; difference: -0.9 mm; P < 0.001). Patients in the MFC (test) group experienced lower gingival recession (GR), especially in both thin (2 ± 0.4 mm vs 3.1 ± 0.5 mm; difference: -1.1; P < 0.001) and medium (1.6 ± 0.5 mm vs 2.6 ± 0.6; difference: -1 mm; P = 0.010) periodontal phenotypes. Severe periodontal pockets (PD ≥ 7 mm) of patients in the MFC group experienced significantly lower soft tissue shrinkage than those in the CGC (control) group, regardless of periodontal phenotype. Conclusion: The use of MFC resulted in a greater PD reduction and lower rate of GR in the short term. Nonsurgical periodontal treatment performed with CGC led to more soft tissue shrinkage, particularly when performed in patients with a thin periodontal phenotype. AID - 1785825