Impact of plasma of argon cleaning treatment on implant abutments in patients with a history of periodontal disease and thin biotype: radiographic results at 24‐month follow‐up of a RCT

• DOI: 10.1111/clr.12290
• Publication Date: 2013-11-06T08:03:03Z
• Authors: Luigi Canullo; David Peñarrocha; Marco Clementini; Giuliano Iannello; Costanza Micarelli
• Keywords: Premolar; Abutment

Abstract Background A lack of evidence is present in literature regarding the clinical relevance micropollution and bacterial contamination on customized titanium abutments following laboratory stages steaming cleaning procedures. To preserve from such pollutants, plasma argon was advocated. Aim The aim this prospective, randomized, match‐paired, triple‐blinded, controlled, trial to longitudinally assess radiographical marginal bone‐level changes around implants restored according platform switching “one‐abutment‐one‐time” concepts, using commercially available abutments, with without treatment after customization. Materials methods Thirty patients thin gingival biotype, a history periodontal disease, general good health received one implant anterior maxilla or premolar region. Patients were randomly assigned control (abutment subjected only usually adopted protocol by steam) test group treatment). Periapical standardized digital radiographs taken at time crown connection (T 0 ), 6 1 ) 24 months final restoration 2 ). Average mesial–distal mean values standard deviations ( SD calculated. Mann–Whitney U ‐test selected identify differences between groups. Results An average interproximal bone loss 0.16 mm : 0.17) 0.07 0.34) revealed respectively, while months, groups showed 0.38 0.44) 0.11 0.14), respectively. Statistically significant among found both points. Intergroup comparison relived absence statistically difference. Conclusion Plasma‐cleaning together one‐abutment‐one‐time could be favorable terms hard‐tissue‐level changes, also critical conditions as presenting biotype.