Universität zu Köln

Fischer, Kai R., Testori, Tiziano ORCID: 0000-0001-7901-8120, Wachtel, Hannes, Muhlemann, Sven ORCID: 0000-0003-1253-1813, Happe, Arndt and Del Fabbro, Massimo (2019). Soft tissue augmentation applying a collagenated porcine dermal matrix during second stage surgery: A prospective multicenter case series. Clin. Implant Dent. Relat. Res., 21 (5). S. 923 - 931. HOBOKEN: WILEY. ISSN 1708-8208

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Abstract

Background The achievement and preservation of an adequate amount of soft tissue around implants is a critical factor for the prognosis of the treatment. Purpose To evaluate the effectiveness of a porcine dermal matrix applied during second stage implant surgery for horizontal soft tissue augmentation and preservation of dimensional stability. Materials and Methods Twenty patients (mean age 50.2 +/- 11.9 [SD] years) candidate to implant therapy and requiring soft tissue augmentation were recruited in four centers. Augmentation was performed in 24 cases. A porcine dermal matrix was placed into a buccal split-thickness pouch during uncovering surgery. Silicone impressions were taken before surgery (T0), 2 weeks later at suture removal (T2), 6 months (T3), and 24 months (T4) post augmentation. Dimensional changes of soft tissue were evaluated using superimposition of digitalized study casts. Results Nineteen patients (23 implants) could be evaluated at 6 months and 13 patients (17 implants) at 24 months. After 6-month follow-up, there was a significant dimensional gain respect to baseline, averaging 0.83 +/- 0.64 mm (P < .01). This did not change significantly at 24 months (0.77 +/- 0.65 mm, P = .19). The gain was >0.5 mm in 65.2% and 64.7% of the cases, respectively. Soft tissue shrinkage averaged 34.2% +/- 77.0% from T2 to T3 (P < .01) and did not change thereafter (P = .39). Shrinkage was more consistent in the posterior mandible than in the maxilla, but not significantly (P = .23 at 6-month and .36 at 24-month). No adverse events occurred. Conclusion Within the limitations of this prospective case series, the use of a porcine dermal matrix may provide consistent soft tissue augmentation that maintains up to 24-month follow-up, although graft shrinkage may occur in the first 6 months, depending on the location of surgery.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Fischer, Kai R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Testori, Tiziano UNSPECIFIED orcid.org/0000-0001-7901-8120 UNSPECIFIED Wachtel, Hannes UNSPECIFIED UNSPECIFIED UNSPECIFIED Muhlemann, Sven UNSPECIFIED orcid.org/0000-0003-1253-1813 UNSPECIFIED Happe, Arndt UNSPECIFIED UNSPECIFIED UNSPECIFIED Del Fabbro, Massimo UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-135100
DOI:	10.1111/cid.12817
Journal or Publication Title:	Clin. Implant Dent. Relat. Res.
Volume:	21
Number:	5
Page Range:	S. 923 - 931
Date:	2019
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1708-8208
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CRESTAL BONE STABILITY; CONNECTIVE-TISSUE; DENTAL IMPLANTS; VOLUME AUGMENTATION; DEFECTS; GRAFTS; REPLACEMENT; MEMBRANE; SURVIVAL; PERIOD Multiple languages Dentistry, Oral Surgery & Medicine Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13510