Use of Collagen Matrix for Augmentation of the Peri-implant Soft Tissue at the Time of Immediate Implant Placement

Abstract

Aim:The aim of this study was to determine the treatment outcome of the use of a porcine monolayer collagen matrix (mCM) to augment peri-implant soft tissue in conjunction with immediate implant placement as an alternative to patient's own connective tissue. Materials and methods:A total of 27 implants were placed immediately in 27 patients (14 males and 13 females, with a mean age of 52.2 years) with simultaneous augmentation of the soft tissue by the use of a mCM. The patients were randomly divided into two groups: Group I: An envelope flap was created and mCM was left coronally uncovered, and group II: A coronally repositioned flap was created and the mCM was covered by the mucosa. Soft-tissue thickness (STTh) was measured at the time of surgery (T0) and 6 months postoperatively (T1) using a customized stent. Cone beam computed tomographies (CBCTs) were taken from 12 representative cases at T1. A stringent plaque control regimen was enforced in all the patients during the 6-month observation period.Results: Mean STTh change was similar in both groups (0.7 ± 0.2 and 0.7 ± 0.1 mm in groups I and II respectively). The comparison of STTh between T0 and T1 showed a statistically significant increase of soft tissue in both groups I and II as well as in the total examined population (p < 0.001). The STTh change as well as matrix thickness loss were comparable in both groups (p > 0.05). The evaluation of the CBCTs did not show any signs of resorption of the buccal bone plate. Conclusion:Within the limitations of this study, it could be concluded that the collagen matrix used in conjunction with immediate implant placement leads to an increased

Soft tissue augmentation at immediate implants using a novel xenogeneic collagen matrix in conjunction with immediate provisional restorations: A prospective case series

“…The gain in soft tissue thickness observed in the present study at 6M (0.75 mm) is comparable to that reported in a similar study also using a porcine derived CM around immediate implants (0.70 mm) . When compared with studies using connective tissue autografts around immediately provisionalized implants, these studies have reported heterogeneous results, in some resulting in very similar mean gains in thickness (0.7 mm), while in others the gains have been higher (1.43 mm)…”

“…The gain in soft tissue thickness observed in the present study at 6M (0.75 mm) is comparable to that reported in a similar study also using a porcine derived CM around immediate implants (0.70 mm). 34 When compared with studies using connective tissue autografts around immediately provisionalized implants, these studies have reported heterogeneous results, in some resulting in very similar mean gains in thickness (0.7 mm), 35 while in others the gains have been higher (1.43 mm). 36 Most of the studies using CM have evaluated its capability to increase soft tissue thickness around delayed implants in healed ridges, 15,16,37 what may be difficult to compare with their use in immediate implants, as in this surgical protocol there are significant physiological tissue changes during healing.…”

Peri‐implant soft tissue phenotype modification and its impact on peri‐implant health: A systematic review and network meta‐analysis

“…Full‐text assessment was performed for 72 articles. Based on the predetermined inclusion criteria, 52 articles were included in the qualitative analysis 24,41,80‐127 . The reason for exclusion of the other 20 articles is presented in detail elsewhere (the reader is referred to the Supplementary Appendix in online Journal of Periodontology ).…”

“…The reason for exclusion of the other 20 articles is presented in detail elsewhere (the reader is referred to the Supplementary Appendix in online Journal of Periodontology ). Twenty‐five, of the 52 articles included in the systematic review that reported an RCT, were considered for the network meta‐analysis 80‐83,85,86,88,89,94,96,97,100,101,107,109,110,116‐120,122‐124,126 . The inter‐reviewer reliability in the screening and inclusion process, assessed with Cohen's κ, corresponded to 0.86 and 0.93 for assessment of titles and abstracts and full‐text evaluation, respectively.…”

The Use of a Novel Porcine Derived Acellular Dermal Matrix (Mucoderm) in Peri-Implant Soft Tissue Augmentation: Preliminary Results of a Prospective Pilot Cohort Study

“…To the best of the authors' knowledge, this is one of only few studies [ 58 , 59 ] to test in vivo this novel PDCM for soft tissue augmentation procedures around dental implants.…”