title: Dimensional Evaluation of Different Ridge Preservation Techniques: A Randomized Clinical Study.
abstract: The objective of this study was to quantitatively determine ridge contour changes after different alveolar ridge preservation techniques. An initial total of 40 patients provided a final total of 35 single-gap extraction sites. After tooth removal, the socket was subjected to one of four treatment modalities: placement of a deproteinized bovine bone mineral (DBBM; Endobon) covered with a soft tissue punch from the palate (Tx1); placement of DBBM without soft tissue punch (Tx2); placement of an adsorbable collagen membrane (Osseoguard) covering the DBBM (Tx3); and no additional treatment (control). Silicone impressions were obtained before and 6 months after tooth extraction for quantitative-volumetric evaluation on stone cast models. Bone quality and need for further bone augmentation were also noted. Tx1 and Tx3 resulted in significantly less bucco-oral tissue loss when compared to Tx2 and the control group. Premolar teeth and teeth extracted for traumatic reasons revealed significantly less tissue loss. Using barrier membranes or soft tissue punches in addition to placement of DBBM seems to be advantageous to limit bucco-oral tissue atrophy. The clinical benefit, however, is still questionable.
authors.forename: Stefan
authors.initials: S
authors.lastname: Fickl
authors.forename: Kai
authors.initials: K
authors.lastname: Fischer
authors.forename: Nicole
authors.initials: N
authors.lastname: Petersen
authors.forename: Arndt
authors.initials: A
authors.lastname: Happe
authors.forename: Markus
authors.initials: M
authors.lastname: Schlee
authors.forename: Ulrich
authors.initials: U
authors.lastname: Schlagenhauf
authors.forename: Moritz
authors.initials: M
authors.lastname: Kebschull
mesh_terms: D000328:Adult; D016301:Alveolar Bone Loss / Q000175:diagnosis* / Q000601:surgery*; D000540:Alveolar Ridge Augmentation / Q000379:methods*; D004311:Double-Blind Method; D005858:Germany; D006801:Humans; D008334:Mandible / Q000601:surgery*; D008437:Maxilla / Q000601:surgery*; D011446:Prospective Studies; D014081:Tooth Extraction / Q000379:methods*