Journal of Periodontal and Implant Science

Korean Academy of Periodontology (대한치주과학회)
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Clinical evaluation of a collagen matrix to enhance the width of keratinized gingiva around dental implants

  • Lee, Kang-Ho (Department of Periodontology, Chosun University School of Dentistry) ;
  • Kim, Byung-Ock (Department of Periodontology, Chosun University School of Dentistry) ;
  • Jang, Hyun-Seon (Department of Periodontology, Chosun University School of Dentistry)
  • Received : 2009.12.31
  • Accepted : 2010.03.10
  • Published : 2010.04.30
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Abstract

Purpose: The purpose of this study was to evaluate the effect of collagen matrix with apically positioned flap (APF) on the width of keratinized gingiva, comparing to the results of APF only and APF combined with free gingival graft (FGG) at the second implant surgery. Methods: Nine patients were selected from those who had received treatments at the Department of Periodontics, Chosun University Dental Hospital, Gwangju, Korea. We performed APF, APF combined with FGG, and APF combined with collagen matrix coverage respectively. Clinical evaluation of keratinized gingival was performed by measuring the distance from the gingival crest to the mucogingival junction at the mid-buccal point, using a periodontal probe before and after the surgery. Results: The ratio of an increase was 0.3, 0.6, and 0.6 for the three subjects in the APF cases, 3, 5, and 7 for the three in the APF combined with FGG case, and 1.5, 0.5, and 3 for the three in the APF combined with collagen matrix coverage case. Conclusions: This study suggests that the collagen matrix when used as a soft tissue substitute with the aim of increasing the width of keratinized tissue or mucosa, was as effective and predictable as the FGG.

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References

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