EFFECT OF PERI-IMPLANT TISSUE CONDITIONING DURING SINGLE REHABILITATION WITH IMPLANT-RETAINED TEMPORARY CROWN IN ESTHETIC AREA.
Periodontics; Single Implant, Esthetics
Aim: To analyze the behavior of peri-implant tissues during rehabilitation with provisional crowns in superior esthetic region. Methods: This longitudinal observational study evaluated the periodontal condition of 16 patients rehabilitated with implant-supported provisional crowns in esthetic area using the parameters of Visible Plaque Index (VPI), Bleeding on probing (BoP) and Gingival Thickness (GT) of the adjacent teeth and the prosthetic space (PS) in T0 (before implant placement surgery), T1 (installation of provisional crown), and T2 (during soft tissue conditioning). The parameters: Probing Depth (PD), Transparency in Probe (TP), Height/Width of the interdental papilla (HP/WP), Height/Width of the provisional crown (HC / WC), and keratinized mucosa (KM) were performed on T1 and T2. The parameters of the implant-supported prosthesis were compared to the same aspects of adjacent teeth. Friedman and Wilcoxon tests were applied to analyze data from the follow-ups. The comparison between the rehabilitated region and the adjacent teeth were achieved using Wilcoxon test for paired sample. Both analyses showed significance level of 5%. Results: The mean time of soft tissue conditioning was 40 days (mean of 2.6 sessions). There was an increase on the VPI between T0 (31.1%) and T2 (40.5%), but without statistically significant difference (p> 0.05). Regarding the BoP, it was not observed statistically significant differences over time (T0 - 21%, T2 = 20.8%). For GT, there was statistically significant difference between follow up periods (T0 - 1.66mm, T1 - 1.22mm, T2 - 1.16mm). The PD increased from T1 (1.76 mm) to T2 (1.86 mm) without statistically significant difference. The same was observed with an HC / WC (from 1.06 to 1.19) and HP / WP (0.62 to 0.84). The Wilcoxon test showed a not significant result between T1 and T2 for HP / WP (p <0.05) and HC / WC (p <0.05). When comparing the implant and the adjacent teeth area, the parameters that showed statistically difference (p<0,05) of means were: HP/WP in T1, with a lower mean (0,62) than the adjacent teeth (0.79); and GT at T0, when the implant area had a higher mean (1,66) than the adjacent teeth (1,18). Conclusion: For this study, the provisional implant-supported crown promoted alterations on the adjacent peri-implant soft tissue on GT, HP/WP, and HC/WC.